search bar: Stop using ::key-press-event

Use a key event controller instead.
places sidebar: Stop using ::key-press-event
2018-02-07 19:54:11 -05:00 · 2018-02-07 19:47:56 -05:00 · 2018-02-07 19:42:47 -05:00 · 2018-02-07 19:36:48 -05:00 · 2018-02-07 19:27:16 -05:00 · 2018-02-07 19:17:11 -05:00
1066 changed files with 40679 additions and 65435 deletions
--- a/8023
+++ b/8023
--- a/NEWS.pre-1.0
+++ b/NEWS.pre-1.0
--- a/NEWS.pre-2.0
+++ b/NEWS.pre-2.0
@@ -0,0 +1,903 @@
+Overview of Changes in GTK+ 2.0.0
+=================================
+
+* GtkTreeView fixes [Jonathan Blandford, Kristian Rietveld, Darin Adler]
+* Build fixes [Anders Carlsson, Tor Lillqvist, Manish Singh]
+* Bug fixes. [Thomas Leonard, Owen Taylor]
+
+Overview of Changes in GTK+ 2.0.0 rc1
+=====================================
+
+* GtkTreeView fixes [Kristian Rietveld, Jonathan Blandford, Richard Hult]
+* Text widget fixes [Havoc Pennington]
+* Efficiency fixes when using Xft [Owen Taylor]
+* Key handling fixes and other fixes for Win32 [Hans Breuer, Tor Lillqvist]
+* Try to fix key handling without XKEYBOARD extension [Owen]
+* Documentation fixes and improvements 
+  [Matthias Clasen, Alexey Malyshev, Akira Tagoh, Vitaly Tishkov]
+* Widget drawing improvements [Soeren Sandmann]
+* Allow cycling between multiple menu bars with <Control>Tab [Owen]
+* Try to build libraries with only shared library dependencies on Xft to 
+  deal with transition to Xft2 [Owen]
+* Portability fixes [Owen, Miroslaw Dobrzanski-Neumann]
+* Don't use red as the default cursor color [Owen]
+* Bug fixes, bug fixes, bug fixes.
+
+Other contributors: Darin Adler, Jacob Berkman, Kevin Breit, Hans Breuer, 
+  Anders Carlsson, Damon Chaplin, Finlay Dobbie, Jody Goldberg,
+  Andreas J. Guelzow, Scott Guilbeaux, Vlad Harchev, James Henstridge,
+  Tim Janik, Satyajit Kanungo, Charles Kerr, Sergey Kuzminov, Miles Lane, 
+  Alexander Larsson, Paolo Maggi, Skip Montaro, Jan Mynarik, Sven Neumann, 
+  Padraig O'Briain, Narayani Pattipati, Mark Patton, Havoc Pennington, 
+  Ettore Perazzoli, Guillermo S. Romero, Manish Singh, Morten Welinder
+
+Overview of Changes in GTK+ 1.3.15
+==================================
+
+* New stock and improved icon images
+  [Tuomas Kuosmanen, Jakub Steiner, Anders Carlsson]
+* Widget drawing improvements for check and radio buttons,
+  spinbuttons [Soeren Sandmann]
+* Clean up module search path algorithm, use GTK_PATH [Owen Taylor]
+* Add GtkSetting for font name. [Richard Hestilow]
+* Much improved key matching code, accelerators work independent
+  of group [Owen]
+* Make mnemonics work for embedded GtkPlug widgets [Owen]
+* Keynav improvements for GtkTreeView [Kristian Rietveld]
+* Fix gtk_tree_view_scroll_to_cell() [Jonathan Blandford]
+* Rename gtk_tree_view_get_iter_root() and gtk_tree_path_new_root()
+  to gtk_tree_view_get_iter_first() and gtk_tree_path_new_first(),
+  add compatibility macros.
+* GtkTreeView bug fixes [Kristian, Anders, Damon Chaplin]
+* GtkTextView bug fixes [Havoc Pennington]
+* Pad class structures for future binary compatibility [Owen]
+* Tutorial improvements [Sven Neumann, Matthias Clasen]
+* Fixes for MULTIPLE selection target [Gregory Merchan, Owen]
+* Fix problems with initial widget size [Owen]
+* AIX compilation fixes [Miroslaw Dobrzanski-Neumann]
+* Win32 fixes [Hans Breuer, Tor Lillqvist]
+* Miscellaneous bug fixes
+
+Other contributors: David L. Cooper, Eric Fischer, Jody Goldberg, 
+  Satajyit Kanungo, Thomas Leonard, Mark Patton, Manish Singh, 
+  Nicolas Setton
+
+Overview of Changes in GTK+ 1.3.14
+==================================
+
+* Keyboard focus improvements [Owen Taylor]
+* Code cleanup [Matthias Clasen, Manish Singh, Darin Adler]
+* Fix accidentally exported variables [Mark McLoughlin]
+* GtkTreeView fixes [Jonathan Blandford, Kristian Rietveld, John Harper, Darin]
+* Default to yellow tooltips [Owen]
+* RC file fixes for reloading, priorities [Owen, Matthias]
+* GtkMenu behavior improvements and bug fixes [Owen, Arnaud Charlet]
+* GtkTextView fixes [Havoc Pennington, Daniel Elstner, Dennis Bjorklund]
+* Improve keynav for paned widgets, tooltips, spin buttons, notebooks, 
+  scrolled windows [Soeren Sandmann, Padraig, Owen]
+* Add Emacs/Default key themes [Owen]
+* Win32 fixes [Hans Breuer, Tor Lillqvist]
+* Ethiopic input methods [Daniel Yacob]
+* Opaque paned window resizing [Soeren]
+* Tweak table expansion behavior [Tim Janik]
+* Fix GtkCalendar focus drawing [Bill Haneman]
+* Allow themeable cursor thickness [Bill]
+* Start of fixing of tutorial for GTK+-2.0 [Matthias]
+* Add a ::adjust-bounds signal to GtkRange to allow spreadsheet style
+  scrollbars. [Jody Goldberg]
+* Add the ability to turn on multiple selection for GtkFileSel [Manish]
+* Bug fixes
+
+Other contributors: Jacob Berkman, Padraig O'Briain, Anders Carlsson,
+ Johan Dahlin, Richard Hult, Stefan Kost, Alex Larsson, Thomas Leonard,
+ Paolo Maggi, Alexey Malyshev, Federico Mena Quintero, Skip Montaro,
+ Sven Neumann, Havoc Pennington, Laszlo Peter, Christian Rose, Joe Shaw,
+ Kevin Vandersloot,  Morten Welinder, Peter Williams
+
+Overview of Changes in GTK+ 1.3.13
+==================================
+
+* Tree view fixes. [Kristian Rietveld, Jonathan Blandford, Anders Carlsson]
+* Tree view support for low-vision themes [Bill Haneman]
+* Text view bug fixes. [Havoc Pennington]
+* Win32 fixes and improvements.  [Tor Lillqvist, Hans Breuer, 
+  Archaeopteryx Software]
+* Documentation improvements [Matthias Clasen, Havoc Pennington]
+* Accelerate alpha compositing using RENDER extension if present,
+  and optimize the non-RENDER case a lot. [Owen Taylor]
+* Add support for "optional keybindings" (action signal returns FALSE) [Owen]
+* Fixed the infamous changing directory deletes filename bug 
+  [Owen and a cast of thousands]
+* Add mouse cursor hiding for text widgets [Anders Carlsson]
+* Simple Hangul input module [Yusuke Tabata]
+* Removed the scary startup warning.
+* GdkPixbuf pixel handling fixes [Owen, Michael Hore, Jim Cape]
+* Converted GtkFileSelection and GtkFontSelection to use GtKTreeView widgets
+  instead of the deprecated GtkCList [Owen]
+* gtkhsv.h was installed by mistake, fixed that. [reported by Ross Burton]
+* gdk_pixbuf_render_to_drawable() now also handles alpha pixbufs.
+* Made Gtkimage draw GtkPixmap, GtkImage, GdkPixbuf insensitive, prelighted,
+  etc. [Havoc, Owen]
+* Marked gtk_item_factory_path_from_widget() G_CONST_RETURN. [Matt Wilson]
+* gtk_image_menu_item_new_from_stock() now falls back to
+  new_with_mnemonic, for consistency with gtk_button_new_from_stock()
+  [Havoc Pennington]
+* GdkModifierType is now consistently used for modifier mask parameters
+  [Mark Patton]
+* gtk_widget_set_accel_path() is now publically exported.
+
+Other contributors: Darin Adler, Jeffrey Baker, Damon Chaplin, Brian Cameron, 
+  Murray Cumming, James Henstridge, Jacob Berkman, Arnaud Charlet, Jeff Franks, 
+  Jeff Garzik, Jody Goldberg, Diego Gonzalez, Melvin Hadasht, Raja Harinath, 
+  Tim Janik, Mike Kestner, Mathieu Lacage, Alex Larsson, Ryan Lovett, 
+  Mark McLoughlin, Sven Neumann, Padraig O'Briain, Xavier Ordoquy, Chris Phelps, 
+  Detlef Reichl, Guillermo S. Romero, Federico Mena Quintero, Manish Singh,
+  HideToshi Tajima, Vitaly Tishkov, Jon Trowbridge, Sergey Vlasov.
+
+Overview of Changes in GTK+ 1.3.12
+==================================
+
+* Fix problems with PNG saving [Michael Natterer]
+* Cleanups of deprecated usages [Sebastian Wilhelmi]
+* Win32 fixes [Tor Lillqvist]
+* Documentation improvements [Matthias Clasen, Havoc Pennington, 
+  Vitaly Tishkov]
+* Frame buffer port fixes [Manish Singh]
+* GtkTextView bug fixes [Havoc Pennington, Chris Phelps]
+* Menu behavior improvements [Kristian Rietveld]
+* Make focus line width configurable, focus color work on 
+  dark themes. [Bill Haneman, Owen Taylor]
+* Add state argument to gtk_paint_focus() [Bill]
+* Added incremental revalidation to tree view, for better apparent speed 
+  [Jonathan Blandford]
+* Remove useless gtk_tree_view_column_cell_event() [Jonathan]
+* Display XIM status in a separate window [HideToshi Tajima]
+* Add GDK_DEBUG=nograbs to disable pointer, keyboard grabs [Jacob Berkman]
+* Add menu of Unicode control characters to GtkEntry, GtkTextView 
+  [Dov Grobgeld, Havoc]
+* Pass key releases along to input methods [Owen]
+* Many bug fixes
+
+Other contributors: Darin Adler, Fabrice Bellet, Chris Blizzard, 
+  Hans Breuer, Anders Carlsson, Damon Chaplin, Murray Cumming, Jeff Franks, 
+  James Henstridge, Tim Janik, Alex Larsson, George Lebl, Kjartan, Maraas, 
+  Sven Neumann, Seth Nickell, Padraig O'Briain, Soeren Sandmann, Manish Singh, 
+  Matt Wilson
+
+Overview of Changes in GTK+ 1.3.11
+==================================
+
+* Massive rework of accelerator API and implementation (Tim Janik)
+* Major fixes to resizing and redrawing to eliminate hysteresis
+  and optimize. (Owen Taylor, Soeren Sandmann)
+* Make many widgets NO_WINDOW to improve appearance and reduce
+  drawing overhead (Owen)
+* Text view fixes (Havoc Pennington)
+* Make child widgets in GtkTextView work (Havoc)
+* GtkTreeModelSort fixage (Jonathan Blandford, Kristian Rietveld)
+* Clean up GtkTreeView drag and drop support (Owen)
+* Misc tree view fixes and improvements (Jonathan, Kristian, Anders, Matt Wilson)
+* Add gtk_window_get/set_focus(), gtk_window_set_default() as public
+  functions (Owen, Damian Ivereigh)
+* Fixes to GtkPlug/GtkSocket (Michael Meeks, Owen)
+* Change button ordering in standard dialogs to correspond to 
+  GNOME usability project proposal (Gregory Merchan)
+* Add support for context sensitivity in input methods (Owen)
+* Hook up gtk_im_context_set_use_preedit() (Hidetoshi Tajima)
+* Fix gdk_window_scroll() and other aspects of big windows (Owen)
+* Remove need for X connection for class initialization (Jacob Berkman)
+* Propagate key events to parents of focused widget (Owen)
+* Don't export normal GTK+ marshalers, export deprecated compat marshalers (Owen)
+* Many Win32 Fixes and improvements (Hans Breuer, Tor Lillqvist)
+* Bug and documentation fixing (Matthias Clasen, Anders Carlsson,
+  Jacob Berkman, others.)
+
+Other Contributors:
+  Darin Adler, Marius Andreiana, Erwann Chenede, Murray Cumming, Janet Davis, 
+  Daniel Egger, Daniel Elstner, Jeff Franks, Alex Larsson, George Lebl, 
+  Sergey Kuzminov, Eric Lemings, Arkadiusz Miskiewicz, Padraig O'Briain, Sven Neumann, 
+  Kristian Rietveld, Nicolas Setton, Manish Singh,  Vitaly Tishkov, Sebastian Wilhelmi, 
+  Michael Natterer
+
+Overview of Changes in GTK+ 1.3.10
+==================================
+
+* GtkTextView fixes [Havoc Pennington]
+* GtkTreeView fixes and improvements [Jonathan Blandford, Kristian,
+  Manish Singh, Joshua Pritikin, Oleg Maiboroda, James Henstridge]
+* gtkdemo improvements [Kristian Rietveld]
+* Drag and drop fixes to generic code and widgets 
+  [Owen Taylor, Damian Ivereigh]
+* Documentation improvement [Havoc Pennington, Matthias Clasen]
+* Spelling fixes [Jacob Berkman]
+* Move signals to the GtkEditable interface [Kristian]
+* Further stock image improvements [Jakub Steiner]
+* Support text chunks for the PGN loader, add gdk_pixbuf_get_option()
+  [Sven Neumann]
+* Rename gdk_pixbuf_new_from_stream back to new_from_inline [Owen]
+* Automatically call setlocale(), unless explicitly disabled [Owen]
+* Property addition to various widgets [Michael Meeks, Owen]
+* Support building with automake-1.4 [James]
+* Make GtkRadioButton groups act as a single focus point [Owen]
+* Move gdk_window_lookup etc. to be cross-platform [Matthias]
+* Draw spinbuttons variably sized [Kristian]
+* Separate GdkAtom out from X atoms for compatibility with future
+  multihead changes [Owen]
+* Require gdk_threads_init() to be explicitly called instead
+  of piggybacking off of g_thread_init(). [Owen]
+* Improvements to text-view/label/entry popup menus [Damian, Jacob, Owen]
+* Bug fixes and cleanup [Matthias, others]
+
+Other Contributors:
+  Mark McLoughin, Mikael Hermansson, Soeren Sandmann, Anders Carlsson,
+  Tim Janik, Murray Cumming, Hidetoshi Tajima, Padraig O'Briain, 
+  Hans Breuer, Vitaly Tishkov, Dov Grobgeld
+ 
+
+Overview of Changes in GTK+ 1.3.9
+=================================
+
+* Add editable text cells to GtkTreeView.
+  Keynav, drawing fixes in GtkTreeView [Jonathan Blandford]
+* Text widget no longer always has a \n in it. [Havoc Pennington]
+* Text widget bug fixes [Havoc, Dov Grobgeld, Hidetoshi Tajima]
+* Allow -1 for width/height in gdk_pixbuf_render_*(). [Matthias Clasen]
+* Minor fix for major resizing problems in recent releases [Owen Taylor]
+* Restore ability to set _set properties to TRUE for 
+  GtkCellRendererText, GtkTextTag [Owen]
+* Cursor drawing improvements [Owen]
+* Win32 fixes [Hans Breuer]
+* Mark various functions as deprecated or private.
+* Misc bug fixes, portability fixes, and cleanups.
+
+Other Contributors: 
+ Vitaly Tishkov, Christian Rose, Frank Belew, Jeff Franks, Sven Neumann,
+ Kristian Rietveld, Vitaly Tishkov, Joshua N. Pritikin, Matt Wilson, 
+ James Henstridge, Detlef Reichl
+
+Overview of Changes in GTK+ 1.3.8
+=================================
+
+* GtkTreeView and GtkTreeModel API cleanups/improvements [Jrb]
+* GtkOptionMenu scrollwheel support [Alex]
+* GtkModule search paths [Owen]
+* Documenatation updates [Havoc,Jrb]
+* Major Gdk cleanup [Owen]
+* Miscellaneous other fixes/cleanups
+
+Other Contributors:
+  Joshua N Pritikin, Padraig O'Briain, Jakub Steiner, Matthias Clasen,
+  Matt Wilson, James Henstridge
+
+Overview of Changes in GTK+ 1.3.7
+=================================
+
+* Many Pixbuf (loader) improvements [Matthias Clasen, Soeren Sandmann]
+* Added publically installed utility gdk-pixbuf-csource to generate
+  inlined pixbufs in C source code [Tim Janik]
+* Optional movement of button children on press [Soeren, Owen Taylor]
+* Interactive searching in GtkTreeView [Kristian Rietveld]
+* Sorting/ordering improvements for GtkTreeView [Kris, Jonathan Blandford]
+* Animation of expander motion for GtkTreeView [Anders Carlsson]
+* Lots of misc GtkTreeView fixes and improvements [Jonathan]
+* New/improved stock icons [Jakub Steiner] 
+* Code and API rework for window resizing [Havoc Pennington]
+* Converted accel groups to GObject [James Henstridge]
+* More property support improvements
+* Add facility for "secondary" buttons in 
+  GtkButtonBox/GtkDialog [Gregory Merchan]
+* Disentangled child visability from MAPPED state [Owen]
+* Plug/Socket improvements and port to the XEMBED protocol [Owen]
+* Added priorities for styles in RC files, 
+  support multiple parse contents [Owen]
+* Made GdkVisual and GdkDevice GObjects [Alexander Larsson]
+* Key binding improvements [Havoc]
+* Added GtkWidget::event-after signal since normal event handling
+  is now aborted as soon as a handler returned TRUE [Tim]
+* Dnd fixes and improved icon support [Owen]
+* Removed GtkPacker widget
+* Fixing missing paired getters/setters [Kris]
+* Nuked remaining GtkArg cruft, implemented container/child properties [Tim]
+* Added window grab groups [Owen]
+* Many frame buffer improvements [Alex]
+* Win32 fixes and improvements [Hans Breuer]
+* Warning fixes [Darin Adler]
+* Miscellaneous bug and API fixes [Matthias et. al]
+
+Other Contributors:
+  Joshua N Pritikin, Hidetoshi Tajima, Manish Singh, ERDI Gergo, Jens Finke,
+  Chema Celorio, Lee Mallabone, Vitaly Tishkov, Sebastian Wilhelmi,
+  Nicola Girardi, Sven Neumann, Padraig O'Briain, Michael Natterer,
+  Suresh Chandrasekharan, Jonas Borgström, Jay Cox, Michael Meeks,
+  Mathias Hasselmann, Peter Williams, Thomas Broyer, Kjartan Maraas,
+  Joel Becker, Jeff Franks, Brian Cameron, Skip Montanaro
+
+Overview of Changes in GTK+ 1.3.6
+=================================
+
+* Properly renders strikethrough text
+* win32 fixes
+* Added "scale" property to GtkTextTag and GtkCellRendererText to do 
+  relative font scaling
+* Added "format_value" signal to GtkScale to reformat value text
+* framebuffer fixes
+* Property support added to lots of widgets
+* Many GtkTreeView new features and API/implementation fixes
+* Lots of new_with_mnemonic() convenience functions
+* Change GtkImageMenuItem API to be more consistent/useful
+* Added lots of new stock items/icons
+* Rewrote GtkRange/GtkScale/GtkScrollbar, includes support for
+  enabling/disabling extra scrollbar stepper arrows in gtkrc so NeXT
+  themes won't need broken hacks
+* Convenience API for GtkRange similar to the one added to GtkSpinButton
+  a while back
+* Make menubar/toolbar work properly with xthickness/ythickness of 1 or 0, 
+  and move some attributes from program settings to user settings.
+  Allows nice 1-pixel-bevel themes.
+* Moved ::focus virtual function from GtkContainer to GtkWidget
+* Plenty of bug fixes
+
+Overview of Changes in GTK+ 1.3.5
+=================================
+
+* New default theme based on Raleigh theme for 1.2.x.
+* Dependency on the ATK library added as a step to
+  providing accessibility-enabling interfaces
+* XEMBED-based GtkPlug/GtkSocket now basically works.
+* Drag and drop of column headers in GtkTreeView
+* GtkColorSelector work: hooks for saving and propagating palette, UI tweaks,
+  and API sanitation
+* Key binding fixes
+* Configurable padding/spacing in a lot of places
+* Invisible text in GtkTextView fixed
+* SHM segments now created with a mode of 0600
+* Bug fixes
+
+Overview of Changes in GTK+ 1.3.4
+=================================
+
+* Win32 fixes
+* GtkTreeView improvements and fixes
+* Fix glib-2.0.m4
+* Miscellaneous bug fixes
+
+Overview of Changes in GTK+ 1.3.3
+=================================
+
+[ 5600 lines of ChangeLog ]
+
+* API cleanups
+* Win32 work (Tor, Hans Breuer)
+* Focus improvements (Owen)
+* Frame buffer improvements (Alex)
+* Work on GtkTextView (Havoc)
+* Much work on GtkTreeView (Jonathan)
+* Selectable labels (Havoc)
+* Converted many arguments to properties (Lee Mallabone, John Margaglione)
+* Add exact regions to GdkExposeEvent, propagate it. (Alex)
+* Added ability to have resize grips in status bars (etc.) using
+  _NET_WM_MOVERESIZE protocol. (Havoc)
+* Added mnemnonic mechanism to make setting underline accelerators
+  much easier. (Alex)
+* Add per-style property mechanism to allow themes to change 
+  geometry parameters. (Tim)
+* Added global settings mechanisms for settings such as double-click
+  time. (Tim, Owen)
+* Various support functions for new and old WM properties (Havoc, Alex)
+* Add TRUE-stops-returns for boolean-returning signals (Ron Steinke)
+
+Overview of Changes in GTK+ 1.3.2
+=================================
+
+GTK Core:
+
+* New stock-icon and stock-item system. Use themeable pixbufs in
+  dialogs, buttons, etc. [Havoc]
+* Theme engines reworked to use derivation and new object system. [Owen]
+* Added GtkClipboard object for simple selection handling. [Owen]
+* Make GtkEditable an interface, move implementation to GtkOldEditable for
+  compat. [Owen]
+* Better handling of default directionality. [Robert]
+* Use GSignal as backend for GtkSignal and other GObject stuff. [Tim]
+* Move theme engines to GTypePlugin. [Owen]
+
+GDK:
+
+* Beginning of implementation of client parts of new window manager spec. [Owen]
+* Make gdk_drawable_get_image() work with backing store. [Havoc]
+
+Widgets:
+
+* New text widget [Havoc]
+  - Adjustable tab handling.
+  - Ability to have scrolling side areas in new text widget for tabs/line numbers.
+  - Many cleanups and small improvements.
+* Improvements to submenu navigation [Nils Barth/David Santiago] and
+  scrolling menus. [Alex]
+* Simplification of progress bar API. [Havoc]
+* Make GtkImage a generic image-display widget. [Havoc]
+* New GtkTreeView tree widget. Model/view architecture, flexible rendering,
+  large datasets, etc. [Jonathan]
+* New GtkMessageBox widget for message display. [Havoc]
+* Allow labels to have contents set from XML-like markup language. [Havoc]
+* Make dialogs derive from GtkDialog and use stock buttons. [Havoc]
+
+Internationalization:
+
+* Proper character set conversion for clipboard/selection. [Owen]
+* New input method system via loadable modules; support on-the-spot
+  preedit in GtkEntry and new text widget; allow switching input methods
+  on the fly; include modules for XIM and demo Cyrillic-transliteration 
+  module. [Owen]
+* VIQR, Thai, and Inuktitut input methods. [Robert]
+* Convert po files to UTF-8. [Robert]
+
+gdk-pixbuf:
+
+* Full-alpha compositing for gdk-pixbuf on drawable. [Havoc]
+* Add simple saving to gdk-pixbuf. [David Welton/Havoc]
+* Add improved error handling with GError to gdk-pixbuf. [Havoc]
+
+Ports:
+
+* Much work on Win32 Port. [Tor/Hans]
+* Much work on Linux-FB Port. [Elliot/Alex]
+
+Misc:
+
+* Start of new gtk-demo demo program. [Owen/Jonathan]
+* Bug fixes and more bug fixes.
+
+
+Overview of Changes in GTK+ 1.3.1:
+
+* GTK+ now uses the Pango library for text manipulation. All
+  strings in GTK+ now are in Unicode, languages written
+  from right-to-left, and complex-text languages are now supported.
+* The gdk-pixbuf library for image loading and manipulation is 
+  has been integrated with GTK+.
+* The GTK+ object system has mostly been moved to GLib, separating
+  it from the GUI code. Many significant enhancements have been
+  made as part of this.
+* A new text widget is now included. This started as a port
+  of the Tk text widget, and includes such features of the Tk
+  text widget as tags, marks, and unicode text support. It
+  has been enhanced to support model-view operation and the
+  full power of Pango.
+* The GDK library has been extensively revised to support multiple
+  windowing systems. The only fully functional backend in 1.3.1
+  is the X11 backend, however, ports to Win32, Linux-framebuffer,
+  Nano-X, BeOS, and MacOS exist in various states of completion,
+  and at least some of these will be finished and integrated in 
+  before the final GTK+-2.0 release.
+* 32-bit coordinates are now supported throughout GDK and GTK+
+  (they are emulated where not supported by the windowing system.)
+* Many minor bug fixes and enhancements. Incompatible changes
+  are documented in docs/Changes-2.0.txt
+
+Overview of Changes in GTK+ 1.2.8:
+
+* GNU Make 3.79 bug workaround
+* FAQ and tutorial updates and improvements
+* Miscellaneous bug fixes: CList, Calendar, rc-files, FontSelection
+
+Overview of Changes in GTK+ 1.2.7:
+
+* More header cleanups.
+* Fixed activation bug for insensitive widgets.
+* Locale fixes to RC file parsing code.
+* Miscellaneous bugfixes for Item Factory, CList, CTree, X Selections,
+  HScale, VScale, Pixmap, Viewport, OptionMenu, Entry and Notebook.
+* Upgrade to libtool 1.3.4.
+
+Overview of Changes in GTK+ 1.2.6:
+
+* container queue_resize fixes
+* gtk[vh]scale: minor fixups
+* rename idle to idle_id in testgtk to avoid conflicts with 
+  broken libs
+* More consistent naming of gtkrc files
+* Added language support: ro, uk
+
+Overview of Changes in GTK+ 1.2.5:
+
+* more GtkCTree and GtkWindow bug fixes.
+* more redraw/resize queue fixes, better expose event
+  discarding code.
+* more miscellaneous bugs fixed
+* new configure.in option --disable-rebuilds to completely disable
+  rebuilds of autogenerated sources.
+* check for 5.002 now, to avoid failing autogeneration build rules due
+  to old perl versions.
+* fonts (and fontsets) are cached now.
+* more autogeneration make rules and dependency fixups, we should be
+  save with autogeneration up to make -j12 now ;)
+* new window position GTK_WIN_POS_CENTER_ALWAYS, which will recenter the
+  GtkWindow on every size change.
+* major rework of window manager hints handling code, fixed a bunch of
+  races with the new resizing code.
+* the new wm hints and resizing code is absolutely perfect and bug free now,
+  it only lacks testing ;)
+* fixed up various rc style memory problems.
+* gtk_widget_modify_style() now properly changes the style of realized widgets
+  and references the style passed into it. if people worked around this bug,
+  this will introduce a slight memory leak in their code.
+  The code should typically look like:
+            GtkRcStyle *rc_style = gtk_rc_style_new ();
+            [...]
+            gtk_widget_modify_style (widget, rc_style);
+            gtk_rc_style_unref (rc_style);
+* fix problems with positioning menus offscreen.
+* GtkText fixes for some crashes and drawing errors.
+* Better handling for unexpected window destroys in GDK and GTK+.
+  This should make it possible to use a GtkPlug and catch the
+  case where its parent socket is randomly killed.
+* FAQ updates.
+* FileSelection i18n patches, RadioButton fixups.
+* many translation improvements.
+* miscellaneous other bugs fixed.
+
+Overview of Changes in GTK+ 1.2.4:
+
+* DnD improvements (drags can be canceled with Esc now).
+* suppressed configure event reordering in Gdk.
+* rewrite of Gtk's configure event handling.
+* major improvements for the object argument system (Elena Devdariani).
+* major bugfixes for threading, GtkNotebook, GtkItemFactory, GtkCList and
+  GtkCTree.
+* tutorial/FAQ updates, new file generation.txt on autogenerated sources.
+* configure's --with-glib= is "officially" unsupported.
+* upgrade to libtool 1.3.3.
+* various buglets fixed.
+
+Overview of Changes in GTK+ 1.2.3:
+
+* Upgrade to libtool 1.3
+* Check for dgettext (for systems with old versions of GNU Gettext)
+* Many bug fixes (see ChangeLog for details)
+
+Overview of Changes in GTK+ 1.2.2:
+
+* Improved Dnd behaviour with Motif applications.
+* Bug fixes for the Gtk selection code.
+* Minor bug fixes to the Gdk Atom cache and Dnd code (with --display option).
+* Bug fixes and leak plugs for the Gdk IM code.
+* Added gtk_object_get() facility to retrieve object arguments easily.
+  The var args list expects ("arg-name", &value) pairs.
+* Fixed mapping for GdkInputCondition<->GIOCondition, this should fix
+  problems where closed pipes were no longer signaling GDK_INPUT_READ on
+  systems with a native poll().
+* Some cleanups to GtkLabel's memory allocation code (shouldn't leak memory
+  anymore).
+* We don't attempt to lookup xpm color "None" anymore, this should prevent
+  eXodus (commercial X windows server) from popping up a color dialog every
+  time a transparent pixmap is created.
+* Fixed bug where Gtk timeout/idle handlers would execute without the global
+  Gdk lock being held.
+* Other minor bug fixes.
+
+Overview of Changes in GTK+ 1.2.1:
+
+* Many Bug fixes have been applied to the menu and accelerator code.
+* GtkItemFactory can "adopt" foreign menu items now and manage their
+  accelerator installation. This is often required to get GtkItemFactory
+  like accelerator propagation between different windows with the same
+  menu hierarchy and for centralized parsing and saving of accelerators.
+* GtkCList/GtkCTree buttons should always display correctly now.
+* Miscellaneous other bug fixes.
+
+What's New in GTK+ 1.2.0 (since 1.0.x):
+
+* New widgets: GtkFontSelector, GtkPacker, GtkItemFactory, GtkCTree,
+  GtkInvisible, GtkCalendar, GtkLayout, GtkPlug, GtkSocket
+* Many new features and robustness for existing widgets
+* Theme support
+* New DND implementation
+* Internationalization of standard dialogs
+* New key binding system
+* Tearoff menus and menu accelerators
+* Wide character support for entry and text
+* Resizing code has been overhauled
+* Queued redraws of partial areas
+* Far better support for object arguments
+* Speed optimizations
+* Runtime loading of dynamic modules
+* Support for GLib log domains
+* Tutorial improvements
+* A bug fix or two
+
+Overview of Changes in GTK+ 1.1.16:
+
+* Major fixes and improvements for handlebox
+* A change to the way widget->requisition works. Now,
+  widget->requisition is always what the widget requested,
+  unmodified by the usize. See Changes-1.2.txt for details.
+  This correct various bugs with gtk_widget_set_usize().
+* Fixes for XIM on X11R5 systems
+* Don't allow cut-and-paste of text in password-style entries
+* --enable-debug is now on by default for the development release.
+  (When compiling for "production", use --enable-debug=minimum)
+* Handle systems where Helvetica is not present more gracefully
+* Fixes for memory leaks
+* CList and CTree fixes
+* Bug fixes for drawing problems. 
+* Miscellaneous bug fixes to GtkLabel, GtkCList, GtkCTree,
+  GtkColorsel, Focusing, DND
+* Tutorial improvements
+
+Overview of Changes in GTK+ 1.1.15:
+
+* Tutorial Updates
+* Added --libs gthread to gtk-config 
+* Bug fixes
+
+What is new in GTK+ 1.1.14:
+
+* Additions to docs/Changes-1.2.txt
+* Just warn when loading theme engine fails
+* CLAMP GtkScale digits to a meaningful range
+* GTK_LOCALDIR is now defined in a better fashion
+* New functions (feature freeze, we know...):
+    gtk_menu_set_title()
+    gtk_toggle_button_get_active()
+* Some locale fixups in gtkrc code
+* Fixes to make gtk_radio_button_set_group() keep only
+  one radio button in the group active
+* Foreign windows are now always treated as viewable; this fixes
+  a problem where updating didn't occur properly in GtkPlug
+* DND fixes for 64 bit architectures, and for specifying operations 
+  with modifier keys.
+* Major revisions to GtkLayout: avoid having to create window
+  for NO_WINDOW children, adjust allocations of children as 
+  scrolled so queued draws work, and a resize is queued instead
+  of allocating directly in a put() or move()
+
+What is new in GTK+ 1.1.13:
+
+* Dnd and selection bug fixes and memory purification.
+* Widget sensitivity fixups.
+* Tooltips windows are now named "gtk-tooltips" so rc file rules
+  can match tooltips windows. Fixed interaction of tooltips and NO_WINDOW
+  widgets.
+* Spin buttons now update their values upon value retrieval.
+* Overhaul of the resizing vs. redrawing logic to reduce redrawing needs
+  a lot. Gtk makes full use of the draw_area coalescing code now, which
+  got minorly improved as well.
+* Containers map their Gdk windows after their children now to reduce
+  expose event generation.
+* Gdk event queue fixups, this solves the double-click problems people were
+  recently having.
+* Account for the fact that GSource's are only properly reentrant from
+  within dispatch(), thus we don't do Gdk event processing from within
+  check() or prepare() anymore.
+* Rc files feature a bg_pixmap value of "<none>" now.
+* Improved session management support in Gdk.  
+* Automatic disabling of NLS if no gettext is found should work now.
+* Removed deprecated functions, docs/Changes-1.2.txt gives an overview.
+* Gtk+ development now requires GNU autoconf 2.13, GNU automake 1.4
+  and GNU libtool 1.2d.
+* More bug fixes all over the place.
+
+What is new in GTK+ 1.1.12:
+
+* Korean translation added
+* Fixed memory leaks
+* A few other bug fixes
+
+What is new in GTK+ 1.1.11:
+
+* Dutch, Japanese, Swedish, Polish, and Norwegian translations
+* Removed deprecated _interp variants: gtk_container_foreach_interp, 
+  gtk_idle_add_interp, gtk_timeout_add_interp, gtk_signal_connect_interp
+* Lots of cast corrections
+* Many fixes 
+
+What is new in GTK+ 1.1.9:
+
+* Check for broken glibc 2.0 mb functions and avoid them
+* Label and Entry display fixes 
+* Move main thread back to GDK, for locking when translating events
+* Bug fixes
+
+What is new in GTK+ 1.1.8:
+
+* Added support for gettext and the localization of the standard
+  dialogs.
+* Added line-wrapping for the label, and JUSTIFY_FILL
+* Support reordering via drag and drop in  CList and CTree.
+* Replaced GtkDrawWindow widget with a GTK_USER_DRAW flag
+* Extended gtkpaned API to support minimum sizes and proportional
+  resizing.
+* Changed the handling of shared memory segments so as to 
+  remove the need for GTK+ to set up signal handlers.
+* Re-implemented event loop in terms of the event loop
+  that has been added to GLib 1.1.8
+* Added 'grab_focus' signal to allow keyboard accelerators
+  for entries.
+* Load locale specific RC files if present.
+* Bug fixes.
+
+What is new in GTK+ 1.1.7:
+
+* Fixed memory mis-allocation in default files code
+* Various event handling fixes
+* Wide character support for entry and text
+* Destroy widgets _after_ propagating unrealize signals through 
+  widget hierarchy
+* Only build XIM-support if available
+* Tutorial and examples updates
+* Added gtk_drag_source_unset()
+
+What is new in GTK+ 1.1.6:
+
+* The signal system now features emission hooks with special semantics,
+  refer to the ChangeLog for this.
+* Minor? speedups and memory reductions to the emission handling of the
+  signal system.
+* _interp() function variants are deprecated now. the corresponding *_full()
+  variants are provided for a long time now.
+* Dnd abort timeout increased to 10 minutes.
+* GtkScrolledWindow inherits from GtkBin now.
+* GTK_POLICY_NEVER is implemented for scrolled windows now.
+* Lots of API clean ups.
+* Incremental freezing abilities.
+* Integrated widgets from the GNOME tree: GtkLayout, GtkPlug and GtkSocket.
+* New window functions for transient relationship, default size, and 
+  geometry hints
+* Default rc files are now read in (<sysconfdir/etc/gtkrc and ~/.gtkrc)
+  GTK_RC_FILES environment variable and functions are provided to configure
+  this behavior
+* Read doc/Changes-1.2.txt to properly adapt your code.
+* Bug Fixes.
+
+What is new in GTK+ 1.1.5:
+
+* Theme integration
+* Widget style modification is now handled through GtkRcStyles
+* GtkPixmaps now grey out pixmaps when insensitive
+* Notebook enhancements
+* Shadow configurability for menubars and handleboxes
+* DND enhancements
+* gtkfilesel now supports automounters better
+* Implementation of expose compression
+* Queued redraws of partial areas
+* Scrolledwindow (+Viewport) source incompatibilities, children that are added
+  to a scrolled window don't get an automatic viewport anymore. a convenience
+  function gtk_scrolled_window_add_with_viewport() is supplied for this task
+* Deprecated functions will now issue a message, informing the programmer about
+  the use of this function. These functions will get removed in future versions
+* Non-functional functions got removed entirely
+* gtk_widget_new() and gtk_object_new() will now auto-construct new objects.
+  A new function gtk_object_default_construct() is provided now which should
+  be called after every gtk_type_new() to perform the auto-construction
+* Improved argument support of several widgets
+* Bug Fixes
+
+What is new in GTK+ 1.1.3:
+
+* GtkCList/GtkCTree now have the ability to:
+    - hide/show individual columns
+    - disable/enable column resizing
+    - set min and max for column widths
+    - set expander style of the ctree
+    - set/get row and cell styles
+    - set spacing between tree expander and cell contents in ctree
+    - toggle auto_resize for columns
+* Must enhanced DND support, removed old DND code
+* Idle functions are now implemented via GHook, giving a slight speed
+  improvement
+* An environment variable GTK_MODULES which takes a colon separated
+  list of module names GTK+ will now automatically load at gtk_init() startup
+* GtkFontSel now has support for an extra 'base' filter
+* New function gdk_window_set_root_origin to get the real geometry taking
+  into account window manager offsets
+* New function gtk_text_set_line_wrap to toggle line wrapping
+* New function gtk_widget_add_events which safely adds additional
+  events to a widget's event mask
+* New function gdk_event_get_time to get the timestamp from a generic
+  event
+* New widget GtkCalendar
+* New widget GtkInvisible - InputOnly offscreen windows used for reliable
+  pointer grabs and selection handling in DND code
+* New functions gtk_object_remove_no_notify[_by_id] to remove a certain
+  data portion without invocation of its destroy notifier 
+* gtk_spin_button_construct is now deprecated, use gtk_spin_button_configure
+  instead 
+* gtk_clist_set_border is now deprecated, use gtk_clist_set_shadow_type 
+  instead
+* Removed functions gtk_object_set_data_destroy[_by_id] 
+* Documentation additions/updates 
+* HTML and plain text files are now included in the distribution
+* Bug fixes, typeness corrections, and general fixups
+
+What is new in GTK+ 1.1.2:
+
+* Gtk+ is now featuring runtime loading of dynamic modules via the
+  --gtk-modules= command line switch. such modules have to export a
+  G_MODULE_EXPORT void gtk_module_init (gint *argc, gchar ***argv);
+  function which will be invoked to initialize the module. since such
+  modules may create new widget types, they are always resident.
+* The tutorial has been updated again.
+* Changes to menus including tearoff menus and accelerators.
+* Better support for modal dialogs.
+* Removed CAN_FOCUS by default from scrollbars and button children of toolbar.
+* More improvements and fixes for GtkCList and GtkCTree (i.e. row sorting).
+* GtkCTree rows can be unselectable now.
+* The GtkCTree API has undergone major renames (see ChangeLog entry from Lars
+  Hamann on Tue Aug 18 00:29:13 1998).
+* A bunch of varargs functions changed to get va_lists working on systems that
+  implement va_lists as arrays.
+* Improvements to the gdkrgb code.
+* Improvements to Gdk color handling so we greatly reduce server traffic and
+  don't leak colors anymore.
+* Improved internal widget tree iterators (the GtkContainer::foreach signal
+  vanished because of this).
+* Option menus can have the keyboard focus now.
+* More fixups to the text widget.
+* GtkFileSelection should behave much more nicely in combination with AFS now.
+* Support for label underlining.
+* Support for GLib 1.1.3 log domains.
+* Documentation improvements.
+* Configuration fixes on various platforms.
+* Miscellaneous fixes to XInput support.
+* Build with shared library dependencies on Linux
+* Fix for a major bug in the type systems memory allocation code that could
+  cause random crashes.
+* Libtool update to version 1.2b.
+* Lots of bugfixes and cleanups again ;)
+
+
+What is new in GTK+ 1.1.1:
+
+* Tutorial updates and additions.
+* Key binding support for GtkListItems and GtkList.
+* Extended selection mode and autoscrolling for GtkLists.
+* A GtkCtree now operates on GtkCTreeNode* structures rather than GList*.
+* GtkCTreeNodes can now be created from GNode trees.
+* Bug fixes for GtkNotebook, GtkCList, GtkCombo and GdkWindow reparentation.
+
+
+What is new in GTK+ 1.1.0:
+
+* New widget GtkFontSelector.
+* New featureful progress bar.
+* New container widget GtkPacker.
+* New object GtkItemFactory, GtkMenuFactory is deprecated.
+* New key binding system, configurable via rcfiles, similar to styles.
+* New widget GtkCTree with drag selections and keyboard movement and
+  and horizontal scrolling. Features also implemented for GtkCList.
+* Significant speedups to widget creation and destruction through caching
+  colormap and visual queries to the XServer.
+* Speedups for type creation and especially gtk_type_is_a() checks.
+* Speedups in signal lookup, creation and emissions and connection handling.
+* Minor speedups with object data allocation and destruction.
+* Additions to the signal handling API (e.g. *_emitv).
+* Support for rc-file reparsing.
+* Resizing logic is now implemented on container widget basis, rather than
+  for toplevel GtkWindows only.
+* Buttons support relief styles now.
+* Some widgets are now allocated through memchunks to behave more memory wise.
+* Newly included file gtkfeatures.h which defines compatibility macros to
+  test for certain API features upon program compilation.
+* Child arguments support for container widgets.
+* Far better support for object arguments, revamp of the underlying
+  mechanism for speed and reusability. Child/object arguments don't
+  need to be preceded by the "GtkType::" portion anymore.
+* Removed GtkAcceleratorTable in favour of GtkAccelGroup, accelerator display
+  is now performed by a new widget GtkAccelLabel.
+* Overhaul of the resizing code. Resizing behaviour can now be specified
+  on GtkContainer basis, so the underlying algorithm isn't only available
+  for GtkWindows.
+* GtkTables are now fully resizable.
+* The GtkType system now supports an additional base class initialization
+  function.
+* GtkStyles and key bindings can now be looked up depending on the base
+  types of a widget, through a new keyword `class' in rc files.
+* GtkButton derives from GtkBin (finally).  
+* More descriptive error messages on rc parsing.  
+* Runtime information is available to query enum/flag definition values.
+* Upgrade to libtool-1.2
+* Legions of bug fixes, memory leaks, segfaults, of-by-something errors...
+  including those that already went into the 1.0.x branch.
+* A big bunch of features and cosmetic fixups that just got lost in
+  the masses of changesonfigure problem when cross-compiling
--- a/NEWS.pre-3.0
+++ b/NEWS.pre-3.0
--- a/build-aux/meson/post-install.sh
+++ b/build-aux/meson/post-install.sh
@@ -17,5 +17,7 @@ if [ -z "$DESTDIR" ]; then
  gtk-update-icon-cache -q -t -f ${gtk_datadir}/icons/hicolor

  echo Updating input method modules cache...
-  gtk4-query-immodules > ${gtk_libdir}/gtk-${gtk_api_version}/${gtk_abi_version}/immodules.cache
+  gtk_imdir=${gtk_libdir}/gtk-${gtk_api_version}/${gtk_abi_version}
+  mkdir -p ${gtk_imdir}
+  gtk4-query-immodules > ${gtk_imdir}/immodules.cache
 fi
--- a/config.h.meson
+++ b/config.h.meson
@@ -289,3 +289,9 @@
 #mesondefine GTK_LIBDIR

 #mesondefine GTK_PRINT_BACKENDS
+
+#mesondefine HAVE_HARFBUZZ
+
+#mesondefine HAVE_PANGOFT
+
+#mesondefine ISO_CODES_PREFIX
--- a/demos/gtk-demo/application.c
+++ b/demos/gtk-demo/application.c
@@ -469,22 +469,33 @@ demo_application_window_size_allocate (GtkWidget           *widget,
    gtk_window_get_size (GTK_WINDOW (window), &window->width, &window->height);
 }

-static gboolean
-demo_application_window_state_event (GtkWidget           *widget,
-                                     GdkEventWindowState *event)
+static void
+window_state_changed (GtkWidget *widget)
 {
  DemoApplicationWindow *window = (DemoApplicationWindow *)widget;
-  gboolean res = GDK_EVENT_PROPAGATE;
-  GdkWindowState changed, new_state;
+  GdkWindowState new_state;

-  if (GTK_WIDGET_CLASS (demo_application_window_parent_class)->window_state_event)
-    res = GTK_WIDGET_CLASS (demo_application_window_parent_class)->window_state_event (widget, event);
-
-  gdk_event_get_window_state ((GdkEvent *)event, &changed, &new_state);
+  new_state = gdk_window_get_state (gtk_widget_get_window (widget));
  window->maximized = (new_state & GDK_WINDOW_STATE_MAXIMIZED) != 0;
  window->fullscreen = (new_state & GDK_WINDOW_STATE_FULLSCREEN) != 0;
+}

-  return res;
+static void
+demo_application_window_realize (GtkWidget *widget)
+{
+  GTK_WIDGET_CLASS (demo_application_window_parent_class)->realize (widget);
+
+  g_signal_connect_swapped (gtk_widget_get_window (widget), "notify::state",
+                            G_CALLBACK (window_state_changed), widget);
+}
+
+static void
+demo_application_window_unrealize (GtkWidget *widget)
+{
+  g_signal_handlers_disconnect_by_func (gtk_widget_get_window (widget),
+                                        window_state_changed, widget);
+
+  GTK_WIDGET_CLASS (demo_application_window_parent_class)->unrealize (widget);
 }

 static void
@@ -506,7 +517,8 @@ demo_application_window_class_init (DemoApplicationWindowClass *class)
  object_class->constructed = demo_application_window_constructed;

  widget_class->size_allocate = demo_application_window_size_allocate;
-  widget_class->window_state_event = demo_application_window_state_event;
+  widget_class->realize = demo_application_window_realize;
+  widget_class->unrealize = demo_application_window_unrealize;
  widget_class->destroy = demo_application_window_destroy;

  gtk_widget_class_set_template_from_resource (widget_class, "/application_demo/application.ui");
--- a/demos/gtk-demo/application.ui
+++ b/demos/gtk-demo/application.ui
@@ -7,35 +7,29 @@
    <property name="icon-name">document-open</property>
    <child>
      <object class="GtkGrid">
-        <property name="visible">1</property>
        <child>
          <object class="GtkToolbar">
-            <property name="visible">1</property>
            <property name="hexpand">1</property>
            <style>
              <class name="primary-toolbar"/>
            </style>
            <child>
              <object class="GtkMenuToolButton" id="menutool">
-                <property name="visible">1</property>
                <property name="icon-name">document-open</property>
              </object>
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="icon-name">application-exit</property>
                <property name="action-name">app.quit</property>
              </object>
            </child>
            <child>
              <object class="GtkSeparatorToolItem">
-                <property name="visible">1</property>
              </object>
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="icon-name">applications-other</property>
                <property name="action-name">win.logo</property>
              </object>
@@ -54,7 +48,6 @@
              <object class="GtkBox" id="content_area">
                <child>
                  <object class="GtkLabel" id="message">
-                    <property name="visible">1</property>
                    <property name="hexpand">1</property>
                  </object>
                </child>
@@ -64,10 +57,9 @@
              <object class="GtkBox">
                <child>
                  <object class="GtkButton">
-                    <property name="visible">1</property>
                    <property name="valign">center</property>
                    <property name="label" translatable="yes">_OK</property>
-                    <property name="use_underline">1</property>
+                    <property name="use-underline">1</property>
                    <signal name="clicked" handler="clicked_cb"/>
                  </object>
                </child>
@@ -81,11 +73,9 @@
        </child>
        <child>
          <object class="GtkScrolledWindow">
-            <property name="visible">1</property>
            <property name="shadow-type">in</property>
            <child>
              <object class="GtkTextView">
-                <property name="visible">1</property>
                <property name="hexpand">1</property>
                <property name="vexpand">1</property>
                <property name="buffer">buffer</property>
@@ -100,7 +90,6 @@
        <child>
          <object class="GtkStatusbar" id="status">
            <property name="hexpand">1</property>
-            <property name="visible">1</property>
          </object>
          <packing>
            <property name="left-attach">0</property>
--- a/demos/gtk-demo/blendmodes.ui
+++ b/demos/gtk-demo/blendmodes.ui
@@ -2,21 +2,16 @@
 <interface>
  <requires lib="gtk+" version="3.20"/>
  <object class="GtkWindow" id="window">
-    <property name="can_focus">False</property>
-    <property name="resizable">False</property>
+    <property name="resizable">0</property>
    <property name="title">CSS Blend Modes</property>
-    <property name="default_width">400</property>
-    <property name="default_height">300</property>
+    <property name="default-width">400</property>
+    <property name="default-height">300</property>
    <child>
      <object class="GtkGrid">
-        <property name="visible">True</property>
-        <property name="can_focus">False</property>
-        <property name="row_spacing">12</property>
-        <property name="column_spacing">12</property>
+        <property name="row-spacing">12</property>
+        <property name="column-spacing">12</property>
        <child>
          <object class="GtkLabel">
-            <property name="visible">True</property>
-            <property name="can_focus">False</property>
            <property name="label" translatable="yes">Blend mode:</property>
            <property name="xalign">0</property>
            <style>
@@ -24,128 +19,108 @@
            </style>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkScrolledWindow" id="scrolledwindow">
-            <property name="visible">True</property>
-            <property name="can_focus">True</property>
-            <property name="vexpand">True</property>
-            <property name="shadow_type">in</property>
-            <property name="min_content_width">150</property>
+            <property name="can-focus">1</property>
+            <property name="vexpand">1</property>
+            <property name="shadow-type">in</property>
+            <property name="min-content-width">150</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkStackSwitcher">
-            <property name="visible">True</property>
-            <property name="can_focus">False</property>
            <property name="halign">center</property>
-            <property name="hexpand">True</property>
+            <property name="hexpand">1</property>
            <property name="stack">stack</property>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkStack" id="stack">
-            <property name="visible">True</property>
-            <property name="can_focus">False</property>
-            <property name="hexpand">True</property>
-            <property name="vexpand">True</property>
-            <property name="hhomogeneous">False</property>
-            <property name="vhomogeneous">False</property>
-            <property name="transition_type">crossfade</property>
+            <property name="hexpand">1</property>
+            <property name="vexpand">1</property>
+            <property name="hhomogeneous">0</property>
+            <property name="vhomogeneous">0</property>
+            <property name="transition-type">crossfade</property>
            <child>
              <object class="GtkGrid">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
                <property name="halign">center</property>
                <property name="valign">center</property>
-                <property name="hexpand">False</property>
-                <property name="vexpand">True</property>
-                <property name="row_spacing">12</property>
-                <property name="column_spacing">12</property>
+                <property name="vexpand">1</property>
+                <property name="row-spacing">12</property>
+                <property name="column-spacing">12</property>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Duck</property>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">0</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Background</property>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">0</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <style>
                      <class name="duck"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">1</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <style>
                      <class name="gradient"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">1</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">
 Blended picture</property>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">2</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">2</property>
                    <property name="width">2</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="halign">center</property>
                    <style>
                      <class name="blend0"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">3</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">3</property>
                    <property name="width">2</property>
                  </packing>
                </child>
@@ -157,87 +132,72 @@ Blended picture</property>
            </child>
            <child>
              <object class="GtkGrid">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
                <property name="halign">center</property>
                <property name="valign">center</property>
-                <property name="hexpand">False</property>
-                <property name="vexpand">True</property>
-                <property name="row_spacing">12</property>
-                <property name="column_spacing">12</property>
+                <property name="vexpand">1</property>
+                <property name="row-spacing">12</property>
+                <property name="column-spacing">12</property>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Red</property>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">0</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Blue</property>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">0</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <style>
                      <class name="red"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">1</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <style>
                      <class name="blue"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">1</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">
 Blended picture</property>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">2</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">2</property>
                    <property name="width">2</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="halign">center</property>
                    <style>
                      <class name="blend1"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">3</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">3</property>
                    <property name="width">2</property>
                  </packing>
                </child>
@@ -249,71 +209,59 @@ Blended picture</property>
            </child>
            <child>
              <object class="GtkGrid">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
                <property name="halign">center</property>
                <property name="valign">center</property>
-                <property name="hexpand">True</property>
-                <property name="vexpand">True</property>
-                <property name="row_spacing">6</property>
-                <property name="column_spacing">12</property>
+                <property name="hexpand">1</property>
+                <property name="vexpand">1</property>
+                <property name="row-spacing">6</property>
+                <property name="column-spacing">12</property>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <style>
                      <class name="cyan"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">1</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <style>
                      <class name="magenta"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">1</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <style>
                      <class name="yellow"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">3</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">3</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="halign">center</property>
                    <style>
                      <class name="blend2"/>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">3</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">3</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Cyan</property>
                    <property name="xalign">0</property>
                    <style>
@@ -321,14 +269,12 @@ Blended picture</property>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">0</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Magenta</property>
                    <property name="xalign">0</property>
                    <style>
@@ -336,14 +282,12 @@ Blended picture</property>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">0</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Yellow</property>
                    <property name="xalign">0</property>
                    <style>
@@ -351,14 +295,12 @@ Blended picture</property>
                    </style>
                  </object>
                  <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">2</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">2</property>
                  </packing>
                </child>
                <child>
                  <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">Blended picture</property>
                    <property name="xalign">0</property>
                    <attributes>
@@ -366,8 +308,8 @@ Blended picture</property>
                    </attributes>
                  </object>
                  <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">2</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">2</property>
                  </packing>
                </child>
              </object>
@@ -378,14 +320,13 @@ Blended picture</property>
            </child>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
      </object>
    </child>
    <child type="titlebar">
-      <placeholder/>
    </child>
  </object>
 </interface>
--- a/demos/gtk-demo/changedisplay.c
+++ b/demos/gtk-demo/changedisplay.c
@@ -88,11 +88,12 @@ find_toplevel_at_pointer (GdkDisplay *display)
 }

 static gboolean
-button_release_event_cb (GtkWidget       *widget,
-                         GdkEventButton  *event,
-                         gboolean        *clicked)
+release_event_cb (GtkWidget *widget,
+                  GdkEvent  *event,
+                  gboolean  *clicked)
 {
-  *clicked = TRUE;
+  if (gdk_event_get_event_type (event) == GDK_BUTTON_RELEASE)
+    *clicked = TRUE;
  return TRUE;
 }

@@ -133,10 +134,10 @@ query_for_toplevel (GdkDisplay *display,
    {
      gboolean clicked = FALSE;

-      g_signal_connect (popup, "button-release-event",
-                        G_CALLBACK (button_release_event_cb), &clicked);
+      g_signal_connect (popup, "event",
+                        G_CALLBACK (release_event_cb), &clicked);

-      /* Process events until clicked is set by button_release_event_cb.
+      /* Process events until clicked is set by our button release event handler.
       * We pass in may_block=TRUE since we want to wait if there
       * are no events currently.
       */
--- a/demos/gtk-demo/clipboard.c
+++ b/demos/gtk-demo/clipboard.c
@@ -207,34 +207,29 @@ paste_image (GtkMenuItem *item,
                                    data);
 }

-static gboolean
-button_press (GtkWidget      *widget,
-              GdkEventButton *event,
-              gpointer        data)
+static void
+pressed_cb (GtkGesture *gesture,
+            int         n_press,
+            double      x,
+            double      y,
+            GtkWidget  *image)
 {
  GtkWidget *menu;
  GtkWidget *item;
-  guint button;
-
-  gdk_event_get_button ((GdkEvent *)event, &button);
-
-  if (button != GDK_BUTTON_SECONDARY)
-    return FALSE;

  menu = gtk_menu_new ();

  item = gtk_menu_item_new_with_mnemonic (_("_Copy"));
-  g_signal_connect (item, "activate", G_CALLBACK (copy_image), data);
+  g_signal_connect (item, "activate", G_CALLBACK (copy_image), image);
  gtk_widget_show (item);
  gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

  item = gtk_menu_item_new_with_mnemonic (_("_Paste"));
-  g_signal_connect (item, "activate", G_CALLBACK (paste_image), data);
+  g_signal_connect (item, "activate", G_CALLBACK (paste_image), image);
  gtk_widget_show (item);
  gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

-  gtk_menu_popup_at_pointer (GTK_MENU (menu), (GdkEvent *) event);
-  return TRUE;
+  gtk_menu_popup_at_pointer (GTK_MENU (menu), NULL);
 }

 GtkWidget *
@@ -246,6 +241,7 @@ do_clipboard (GtkWidget *do_widget)
      GtkWidget *label;
      GtkWidget *entry, *button;
      GtkWidget *image;
+      GtkGesture *gesture;

      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
      gtk_window_set_display (GTK_WINDOW (window),
@@ -322,8 +318,10 @@ do_clipboard (GtkWidget *do_widget)
                        G_CALLBACK (drag_data_received), image);

      /* context menu on image */
-      g_signal_connect (image, "button-press-event",
-                        G_CALLBACK (button_press), image);
+      gesture = gtk_gesture_multi_press_new (image);
+      gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_SECONDARY);
+      g_object_set_data_full (G_OBJECT (image), "gesture", gesture, g_object_unref);
+      g_signal_connect (gesture, "pressed", G_CALLBACK (pressed_cb), image);

      /* Create the second image */
      image = gtk_image_new_from_icon_name ("process-stop");
@@ -345,8 +343,10 @@ do_clipboard (GtkWidget *do_widget)
                        G_CALLBACK (drag_data_received), image);

      /* context menu on image */
-      g_signal_connect (image, "button-press-event",
-                        G_CALLBACK (button_press), image);
+      gesture = gtk_gesture_multi_press_new (image);
+      gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_SECONDARY);
+      g_object_set_data_full (G_OBJECT (image), "gesture", gesture, g_object_unref);
+      g_signal_connect (gesture, "pressed", G_CALLBACK (pressed_cb), image);
    }

  if (!gtk_widget_get_visible (window))
--- a/demos/gtk-demo/cursors.ui
+++ b/demos/gtk-demo/cursors.ui
--- a/demos/gtk-demo/demo.gresource.xml
+++ b/demos/gtk-demo/demo.gresource.xml
@@ -163,6 +163,7 @@
    <file>flowbox.c</file>
    <file>foreigndrawing.c</file>
    <file>font_features.c</file>
+    <file>fontplane.c</file>
    <file>gestures.c</file>
    <file>glarea.c</file>
    <file>headerbar.c</file>
@@ -200,7 +201,6 @@
    <file>textview.c</file>
    <file>textscroll.c</file>
    <file>theming_style_classes.c</file>
-    <file>toolpalette.c</file>
    <file>transparent.c</file>
    <file>tree_store.c</file>
    <file>textmask.c</file>
@@ -224,6 +224,7 @@
  </gresource>
  <gresource prefix="/font_features">
    <file>font-features.ui</file>
+    <file>fontplane.c</file>
  </gresource>
  <gresource prefix="/spinbutton">
    <file>spinbutton.ui</file>
--- a/demos/gtk-demo/demo.ui
+++ b/demos/gtk-demo/demo.ui
@@ -31,16 +31,14 @@
    </accessibility>
  </object>
  <object class="GtkWindow" id="window1">
-    <property name="default_height">250</property>
-    <property name="default_width">440</property>
+    <property name="default-height">250</property>
+    <property name="default-width">440</property>
    <property name="title" translatable="yes">Builder</property>
    <child>
      <object class="GtkBox" id="vbox1">
-        <property name="visible">1</property>
        <property name="orientation">vertical</property>
        <child>
          <object class="GtkMenuBar" id="menubar1">
-            <property name="visible">1</property>
            <child internal-child="accessible">
              <object class="AtkObject" id="a11y-menubar">
                <property name="AtkObject::accessible-name">The menubar</property>
@@ -48,35 +46,30 @@
            </child>
            <child>
              <object class="GtkMenuItem">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">_File</property>
                <property name="use-underline">1</property>
                <child type="submenu">
                  <object class="GtkMenu">
                    <child>
                      <object class="GtkMenuItem" id="new_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_New</property>
                        <property name="use-underline">1</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="open_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_Open</property>
                        <property name="use-underline">1</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="save_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_Save</property>
                        <property name="use-underline">1</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="save_as_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">Save _As</property>
                        <property name="use-underline">1</property>
                        <accelerator key="s" modifiers="primary | shift-mask" signal="activate"/>
@@ -84,12 +77,10 @@
                    </child>
                    <child>
                      <object class="GtkSeparatorMenuItem">
-                        <property name="visible">1</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="quit_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_Quit</property>
                        <property name="use-underline">1</property>
                        <property name="action-name">win.quit</property>
@@ -101,28 +92,24 @@
            </child>
            <child>
              <object class="GtkMenuItem">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">_Edit</property>
                <property name="use-underline">1</property>
                <child type="submenu">
                  <object class="GtkMenu">
                    <child>
                      <object class="GtkMenuItem" id="copy_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_Copy</property>
                        <property name="use-underline">1</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="cut_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_Cut</property>
                        <property name="use-underline">1</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="paste_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_Paste</property>
                        <property name="use-underline">1</property>
                      </object>
@@ -133,14 +120,12 @@
            </child>
            <child>
              <object class="GtkMenuItem">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">_Help</property>
                <property name="use-underline">1</property>
                <child type="submenu">
                  <object class="GtkMenu">
                    <child>
                      <object class="GtkMenuItem" id="help_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_Help</property>
                        <property name="use-underline">1</property>
                        <property name="action-name">win.help</property>
@@ -148,7 +133,6 @@
                    </child>
                    <child>
                      <object class="GtkMenuItem" id="about_item">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">_About</property>
                        <property name="use-underline">1</property>
                        <property name="action-name">win.about</property>
@@ -162,7 +146,6 @@
        </child>
        <child>
          <object class="GtkToolbar" id="toolbar1">
-            <property name="visible">1</property>
            <child internal-child="accessible">
              <object class="AtkObject" id="a11y-toolbar">
                <property name="AtkObject::accessible-name">The toolbar</property>
@@ -170,7 +153,6 @@
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">New</property>
                <property name="tooltip-text" translatable="yes">Create a new file</property>
                <property name="icon-name">document-new</property>
@@ -178,7 +160,6 @@
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Open</property>
                <property name="tooltip-text" translatable="yes">Open a file</property>
                <property name="icon-name">document-open</property>
@@ -186,7 +167,6 @@
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Save</property>
                <property name="tooltip-text" translatable="yes">Save a file</property>
                <property name="icon-name">document-save</property>
@@ -195,12 +175,10 @@
            </child>
            <child>
              <object class="GtkSeparatorToolItem">
-                <property name="visible">1</property>
              </object>
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Copy</property>
                <property name="tooltip-text" translatable="yes">Copy selected object into the clipboard</property>
                <property name="icon-name">edit-copy</property>
@@ -208,7 +186,6 @@
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Cut</property>
                <property name="tooltip-text" translatable="yes">Cut selected object into the clipboard</property>
                <property name="icon-name">edit-cut</property>
@@ -216,7 +193,6 @@
            </child>
            <child>
              <object class="GtkToolButton">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Paste</property>
                <property name="tooltip-text" translatable="yes">Paste object from the clipboard</property>
                <property name="icon-name">edit-paste</property>
@@ -229,12 +205,10 @@
        </child>
        <child>
          <object class="GtkScrolledWindow" id="scrolledwindow1">
-            <property name="shadow_type">in</property>
-            <property name="visible">1</property>
+            <property name="shadow-type">in</property>
            <property name="expand">1</property>
            <child>
              <object class="GtkTreeView" id="treeview1">
-                <property name="visible">1</property>
                <property name="model">liststore1</property>
                <property name="tooltip-column">3</property>
                <child internal-child="accessible">
@@ -287,7 +261,6 @@
        </child>
        <child>
          <object class="GtkStatusbar" id="statusbar1">
-            <property name="visible">1</property>
          </object>
          <packing>
            <property name="position">3</property>
--- a/demos/gtk-demo/drawingarea.c
+++ b/demos/gtk-demo/drawingarea.c
@@ -4,8 +4,8 @@
 * of various kinds.
 *
 * This demo has two drawing areas. The checkerboard area shows
- * how you can just draw something; all you have to do is write
- * a signal handler for expose_event, as shown here.
+ * how you can just draw something; all you have to do is set a function
+ * via gtk_drawing_area_set_draw_func(), as shown here.
 *
 * The "scribble" area is a bit more advanced, and shows how to handle
 * events such as button presses and mouse motion. Click the mouse
@@ -89,42 +89,38 @@ draw_brush (GtkWidget *widget,
  gtk_widget_queue_draw_area (widget, update_rect.x, update_rect.y, update_rect.width, update_rect.height);
 }

-static gboolean
-scribble_button_press_event (GtkWidget      *widget,
-                             GdkEventButton *event,
-                             gpointer        data)
+static double start_x;
+static double start_y;
+
+static void
+drag_begin (GtkGestureDrag *gesture,
+            double          x,
+            double          y,
+            GtkWidget      *area)
 {
-  double x, y;
-  guint button;
+  start_x = x;
+  start_y = y;

-  gdk_event_get_button ((GdkEvent *)event, &button);
-  gdk_event_get_coords ((GdkEvent *)event, &x, &y);
-
-  if (button == GDK_BUTTON_PRIMARY)
-    draw_brush (widget, x, y);
-
-  /* We've handled the event, stop processing */
-  return TRUE;
+  draw_brush (area, x, y);
 }

-static gboolean
-scribble_motion_notify_event (GtkWidget      *widget,
-                              GdkEventMotion *event,
-                              gpointer        data)
+static void
+drag_update (GtkGestureDrag *gesture,
+             double          x,
+             double          y,
+             GtkWidget      *area)
 {
-  double x, y;
-  GdkModifierType state;
-
-  gdk_event_get_state ((GdkEvent *)event, &state);
-  gdk_event_get_coords ((GdkEvent *)event, &x, &y);
-
-  if (state & GDK_BUTTON1_MASK)
-    draw_brush (widget, x, y);
-
-  /* We've handled it, stop processing */
-  return TRUE;
+  draw_brush (area, start_x + x, start_y + y);
 }

+static void
+drag_end (GtkGestureDrag *gesture,
+          double          x,
+          double          y,
+          GtkWidget      *area)
+{
+  draw_brush (area, start_x + x, start_y + y);
+}

 static void
 checkerboard_draw (GtkDrawingArea *da,
@@ -189,6 +185,7 @@ do_drawingarea (GtkWidget *do_widget)
  GtkWidget *vbox;
  GtkWidget *da;
  GtkWidget *label;
+  GtkGesture *drag;

  if (!window)
    {
@@ -247,11 +244,13 @@ do_drawingarea (GtkWidget *do_widget)
      g_signal_connect (da, "size-allocate",
                        G_CALLBACK (scribble_size_allocate), NULL);

-      /* Event signals */
-      g_signal_connect (da, "motion-notify-event",
-                        G_CALLBACK (scribble_motion_notify_event), NULL);
-      g_signal_connect (da, "button-press-event",
-                        G_CALLBACK (scribble_button_press_event), NULL);
+      drag = gtk_gesture_drag_new (da);
+      gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (drag), GDK_BUTTON_PRIMARY);
+      g_object_set_data_full (G_OBJECT (da), "drag", drag, g_object_unref);
+
+      g_signal_connect (drag, "drag-begin", G_CALLBACK (drag_begin), da);
+      g_signal_connect (drag, "drag-update", G_CALLBACK (drag_update), da);
+      g_signal_connect (drag, "drag-end", G_CALLBACK (drag_end), da);
    }

  if (!gtk_widget_get_visible (window))
--- a/demos/gtk-demo/filtermodel.ui
+++ b/demos/gtk-demo/filtermodel.ui
@@ -34,14 +34,12 @@
    <property name="title" translatable="yes">Filter Model</property>
    <child>
      <object class="GtkGrid" id="grid1">
-        <property name="visible">1</property>
        <property name="margin">10</property>
-        <property name="row_spacing">10</property>
-        <property name="column_spacing">10</property>
-        <property name="column_homogeneous">1</property>
+        <property name="row-spacing">10</property>
+        <property name="column-spacing">10</property>
+        <property name="column-homogeneous">1</property>
        <child>
          <object class="GtkLabel" id="label1">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Original</property>
            <property name="xalign">0</property>
            <attributes>
@@ -49,16 +47,15 @@
            </attributes>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkTreeView" id="treeview1">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+            <property name="can-focus">1</property>
            <property name="model">liststore1</property>
-            <property name="headers_clickable">0</property>
+            <property name="headers-clickable">0</property>
            <child internal-child="selection">
              <object class="GtkTreeSelection" id="treeview-selection1"/>
            </child>
@@ -86,16 +83,15 @@
            </child>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkTreeView" id="treeview2">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="headers_clickable">0</property>
-            <property name="search_column">0</property>
+            <property name="can-focus">1</property>
+            <property name="headers-clickable">0</property>
+            <property name="search-column">0</property>
            <child internal-child="selection">
              <object class="GtkTreeSelection" id="treeview-selection3"/>
            </child>
@@ -135,13 +131,12 @@
            </child>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="label2">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Computed Columns</property>
            <property name="xalign">0</property>
            <attributes>
@@ -149,13 +144,12 @@
            </attributes>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="label3">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Filtered</property>
            <property name="xalign">0</property>
            <attributes>
@@ -163,16 +157,15 @@
            </attributes>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">2</property>
          </packing>
        </child>
        <child>
          <object class="GtkTreeView" id="treeview3">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="headers_clickable">0</property>
-            <property name="search_column">0</property>
+            <property name="can-focus">1</property>
+            <property name="headers-clickable">0</property>
+            <property name="search-column">0</property>
            <child internal-child="selection">
              <object class="GtkTreeSelection" id="treeview-selection5"/>
            </child>
@@ -194,8 +187,8 @@
            </child>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">3</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">3</property>
          </packing>
        </child>
      </object>
--- a/demos/gtk-demo/fishbowl.ui
+++ b/demos/gtk-demo/fishbowl.ui
@@ -5,45 +5,41 @@
    <property name="title" translatable="yes">Fishbowl</property>
    <child type="titlebar">
      <object class="GtkHeaderBar" id="">
-        <property name="visible">True</property>
-        <property name="show-title-buttons">True</property>
+        <property name="show-title-buttons">1</property>
        <child>
          <object class="GtkLabel" id="info_label">
-            <property name="visible">True</property>
          </object>
          <packing>
-            <property name="pack_type">end</property>
+            <property name="pack-type">end</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel">
-            <property name="visible">True</property>
-            <property name="label" bind-source="bowl" bind-property="count">0</property>
+            <property name="label" bind-source="bowl" bind-property="count"/>
          </object>
          <packing>
-            <property name="pack_type">end</property>
+            <property name="pack-type">end</property>
          </packing>
        </child>
        <child>
          <object class="GtkToggleButton" id="changes_allow">
-            <property name="active">False</property>
-            <property name="visible" bind-source="changes_allow" bind-property="active" bind-flags="invert-boolean">True</property>
+            <property name="visible" bind-source="changes_allow" bind-property="active" bind-flags="invert-boolean"/>
            <property name="icon-name">changes-allow</property>
            <property name="relief">none</property>
          </object>
          <packing>
-            <property name="pack_type">end</property>
+            <property name="pack-type">end</property>
          </packing>
        </child>
        <child>
          <object class="GtkToggleButton" id="changes_prevent">
-            <property name="active" bind-source="changes_allow" bind-property="active" bind-flags="bidirectional|invert-boolean">True</property>
-            <property name="visible" bind-source="changes_prevent" bind-property="active" bind-flags="invert-boolean">False</property>
+            <property name="active" bind-source="changes_allow" bind-property="active" bind-flags="bidirectional|invert-boolean"/>
+            <property name="visible" bind-source="changes_prevent" bind-property="active" bind-flags="invert-boolean"/>
            <property name="icon-name">changes-prevent</property>
            <property name="relief">none</property>
          </object>
          <packing>
-            <property name="pack_type">end</property>
+            <property name="pack-type">end</property>
          </packing>
        </child>
      </object>
--- a/demos/gtk-demo/font-features.ui
+++ b/demos/gtk-demo/font-features.ui
--- a/demos/gtk-demo/font_features.c
+++ b/demos/gtk-demo/font_features.c
--- a/demos/gtk-demo/fontplane.c
+++ b/demos/gtk-demo/fontplane.c
@@ -0,0 +1,315 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2012 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "fontplane.h"
+
+#include "gtk.h"
+
+enum {
+  PROP_0,
+  PROP_WEIGHT_ADJUSTMENT,
+  PROP_WIDTH_ADJUSTMENT
+};
+
+G_DEFINE_TYPE (GtkFontPlane, gtk_font_plane, GTK_TYPE_WIDGET)
+
+static double
+adjustment_get_normalized_value (GtkAdjustment *adj)
+{
+  return (gtk_adjustment_get_value (adj) - gtk_adjustment_get_lower (adj)) /
+        (gtk_adjustment_get_upper (adj) - gtk_adjustment_get_lower (adj));
+}
+
+static void
+val_to_xy (GtkFontPlane *plane,
+           gint          *x,
+           gint          *y)
+{
+  gdouble u, v;
+  gint width, height;
+
+  width = gtk_widget_get_allocated_width (GTK_WIDGET (plane));
+  height = gtk_widget_get_allocated_height (GTK_WIDGET (plane));
+
+  u = adjustment_get_normalized_value (plane->width_adj);
+  v = adjustment_get_normalized_value (plane->weight_adj);
+
+  *x = CLAMP (width * u, 0, width - 1);
+  *y = CLAMP (height * (1 - v), 0, height - 1);
+}
+
+static void
+plane_snapshot (GtkWidget   *widget,
+                GtkSnapshot *snapshot)
+{
+  GtkFontPlane *plane = GTK_FONT_PLANE (widget);
+  gint x, y;
+  gint width, height;
+  cairo_t *cr;
+
+  val_to_xy (plane, &x, &y);
+  width = gtk_widget_get_allocated_width (widget);
+  height = gtk_widget_get_allocated_height (widget);
+
+  cr = gtk_snapshot_append_cairo (snapshot,
+                                  &GRAPHENE_RECT_INIT (0, 0, width, height),
+                                  "FontPlane");
+
+  cairo_set_source_rgb (cr, 0, 0, 0);
+  cairo_rectangle (cr, 0, 0, width, height);
+  cairo_paint (cr);
+
+  cairo_move_to (cr, 0,     y + 0.5);
+  cairo_line_to (cr, width, y + 0.5);
+
+  cairo_move_to (cr, x + 0.5, 0);
+  cairo_line_to (cr, x + 0.5, height);
+
+  if (gtk_widget_has_visible_focus (widget))
+    {
+      cairo_set_line_width (cr, 3.0);
+      cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.6);
+      cairo_stroke_preserve (cr);
+
+      cairo_set_line_width (cr, 1.0);
+      cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.8);
+      cairo_stroke (cr);
+    }
+  else
+    {
+      cairo_set_line_width (cr, 1.0);
+      cairo_set_source_rgba (cr, 0.8, 0.8, 0.8, 0.8);
+      cairo_stroke (cr);
+    }
+
+  cairo_destroy (cr);
+}
+
+static void
+set_cross_cursor (GtkWidget *widget,
+                  gboolean   enabled)
+{
+  if (enabled)
+    gtk_widget_set_cursor_from_name (widget, "crosshair");
+  else
+    gtk_widget_set_cursor (widget, NULL);
+}
+
+static void
+adj_changed (GtkFontPlane *plane)
+{
+  gtk_widget_queue_draw (GTK_WIDGET (plane));
+}
+
+static void
+adjustment_set_normalized_value (GtkAdjustment *adj,
+                                 double         val)
+{
+  gtk_adjustment_set_value (adj,
+      gtk_adjustment_get_lower (adj) +
+          val * (gtk_adjustment_get_upper (adj) - gtk_adjustment_get_lower (adj)));
+}
+
+static void
+update_value (GtkFontPlane *plane,
+              gint           x,
+              gint           y)
+{
+  GtkWidget *widget = GTK_WIDGET (plane);
+  gdouble u, v;
+
+  u = CLAMP (x * (1.0 / gtk_widget_get_allocated_width (widget)), 0, 1);
+  v = CLAMP (1 - y * (1.0 / gtk_widget_get_allocated_height (widget)), 0, 1);
+
+  adjustment_set_normalized_value (plane->width_adj, u);
+  adjustment_set_normalized_value (plane->weight_adj, v);
+
+  gtk_widget_queue_draw (widget);
+}
+
+static void
+hold_action (GtkGestureLongPress *gesture,
+             gdouble              x,
+             gdouble              y,
+             GtkFontPlane       *plane)
+{
+  gboolean handled;
+
+  g_signal_emit_by_name (plane, "popup-menu", &handled);
+}
+
+static void
+plane_drag_gesture_begin (GtkGestureDrag *gesture,
+                          gdouble         start_x,
+                          gdouble         start_y,
+                          GtkFontPlane  *plane)
+{
+  guint button;
+
+  button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture));
+
+  if (button == GDK_BUTTON_SECONDARY)
+    {
+      gboolean handled;
+
+      g_signal_emit_by_name (plane, "popup-menu", &handled);
+    }
+
+  if (button != GDK_BUTTON_PRIMARY)
+    {
+      gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED);
+      return;
+    }
+
+  set_cross_cursor (GTK_WIDGET (plane), TRUE);
+  update_value (plane, start_x, start_y);
+  gtk_widget_grab_focus (GTK_WIDGET (plane));
+  gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
+}
+
+static void
+plane_drag_gesture_update (GtkGestureDrag *gesture,
+                           gdouble         offset_x,
+                           gdouble         offset_y,
+                           GtkFontPlane  *plane)
+{
+  gdouble start_x, start_y;
+
+  gtk_gesture_drag_get_start_point (GTK_GESTURE_DRAG (gesture),
+                                    &start_x, &start_y);
+  update_value (plane, start_x + offset_x, start_y + offset_y);
+}
+
+static void
+plane_drag_gesture_end (GtkGestureDrag *gesture,
+                        gdouble         offset_x,
+                        gdouble         offset_y,
+                        GtkFontPlane  *plane)
+{
+  set_cross_cursor (GTK_WIDGET (plane), FALSE);
+}
+
+static void
+gtk_font_plane_init (GtkFontPlane *plane)
+{
+  gtk_widget_set_has_window (GTK_WIDGET (plane), FALSE);
+  gtk_widget_set_can_focus (GTK_WIDGET (plane), TRUE);
+
+  plane->drag_gesture = gtk_gesture_drag_new (GTK_WIDGET (plane));
+  g_signal_connect (plane->drag_gesture, "drag-begin",
+		    G_CALLBACK (plane_drag_gesture_begin), plane);
+  g_signal_connect (plane->drag_gesture, "drag-update",
+		    G_CALLBACK (plane_drag_gesture_update), plane);
+  g_signal_connect (plane->drag_gesture, "drag-end",
+		    G_CALLBACK (plane_drag_gesture_end), plane);
+  gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (plane->drag_gesture), 0);
+
+  plane->long_press_gesture = gtk_gesture_long_press_new (GTK_WIDGET (plane));
+  g_signal_connect (plane->long_press_gesture, "pressed",
+                    G_CALLBACK (hold_action), plane);
+  gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (plane->long_press_gesture),
+                                     TRUE);
+}
+
+static void
+plane_finalize (GObject *object)
+{
+  GtkFontPlane *plane = GTK_FONT_PLANE (object);
+
+  g_clear_object (&plane->weight_adj);
+  g_clear_object (&plane->width_adj);
+
+  g_clear_object (&plane->drag_gesture);
+  g_clear_object (&plane->long_press_gesture);
+
+  G_OBJECT_CLASS (gtk_font_plane_parent_class)->finalize (object);
+}
+
+static void
+plane_set_property (GObject      *object,
+		    guint         prop_id,
+		    const GValue *value,
+		    GParamSpec   *pspec)
+{
+  GtkFontPlane *plane = GTK_FONT_PLANE (object);
+  GtkAdjustment *adjustment;
+
+  switch (prop_id)
+    {
+    case PROP_WEIGHT_ADJUSTMENT:
+      adjustment = GTK_ADJUSTMENT (g_value_get_object (value));
+      if (adjustment)
+	{
+	  plane->weight_adj = g_object_ref_sink (adjustment);
+	  g_signal_connect_swapped (adjustment, "value-changed", G_CALLBACK (adj_changed), plane);
+	}
+      break;
+    case PROP_WIDTH_ADJUSTMENT:
+      adjustment = GTK_ADJUSTMENT (g_value_get_object (value));
+      if (adjustment)
+	{
+	  plane->width_adj = g_object_ref_sink (adjustment);
+	  g_signal_connect_swapped (adjustment, "value-changed", G_CALLBACK (adj_changed), plane);
+	}
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_font_plane_class_init (GtkFontPlaneClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
+
+  object_class->finalize = plane_finalize;
+  object_class->set_property = plane_set_property;
+
+  widget_class->snapshot = plane_snapshot;
+
+  g_object_class_install_property (object_class,
+                                   PROP_WEIGHT_ADJUSTMENT,
+                                   g_param_spec_object ("weight-adjustment",
+                                                        NULL,
+                                                        NULL,
+							GTK_TYPE_ADJUSTMENT,
+							G_PARAM_WRITABLE |
+							G_PARAM_CONSTRUCT_ONLY));
+
+  g_object_class_install_property (object_class,
+                                   PROP_WIDTH_ADJUSTMENT,
+                                   g_param_spec_object ("width-adjustment",
+                                                        NULL,
+                                                        NULL,
+							GTK_TYPE_ADJUSTMENT,
+							G_PARAM_WRITABLE |
+							G_PARAM_CONSTRUCT_ONLY));
+}
+
+GtkWidget *
+gtk_font_plane_new (GtkAdjustment *weight_adj,
+                     GtkAdjustment *width_adj)
+{
+  return g_object_new (GTK_TYPE_FONT_PLANE,
+                       "weight-adjustment", weight_adj,
+                       "width-adjustment", width_adj,
+                       NULL);
+}
--- a/demos/gtk-demo/fontplane.h
+++ b/demos/gtk-demo/fontplane.h
@@ -0,0 +1,65 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2012 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GTK_FONT_PLANE_H__
+#define __GTK_FONT_PLANE_H__
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_FONT_PLANE            (gtk_font_plane_get_type ())
+#define GTK_FONT_PLANE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_FONT_PLANE, GtkFontPlane))
+#define GTK_FONT_PLANE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_FONT_PLANE, GtkFontPlaneClass))
+#define GTK_IS_FONT_PLANE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_COLOR_PLANE))
+#define GTK_IS_FONT_PLANE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_COLOR_PLANE))
+#define GTK_FONT_PLANE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_FONT_PLANE, GtkFontPlaneClass))
+
+
+typedef struct _GtkFontPlane         GtkFontPlane;
+typedef struct _GtkFontPlaneClass    GtkFontPlaneClass;
+
+struct _GtkFontPlane
+{
+  GtkWidget parent_instance;
+
+  GtkAdjustment *weight_adj;
+  GtkAdjustment *width_adj;
+
+  GtkGesture *drag_gesture;
+  GtkGesture *long_press_gesture;
+};
+
+struct _GtkFontPlaneClass
+{
+  GtkWidgetClass parent_class;
+
+  /* Padding for future expansion */
+  void (*_gtk_reserved1) (void);
+  void (*_gtk_reserved2) (void);
+  void (*_gtk_reserved3) (void);
+  void (*_gtk_reserved4) (void);
+};
+
+
+GType       gtk_font_plane_get_type (void) G_GNUC_CONST;
+GtkWidget * gtk_font_plane_new      (GtkAdjustment *width_adj,
+                                     GtkAdjustment *weight_adj);
+
+G_END_DECLS
+
+#endif /* __GTK_FONT_PLANE_H__ */
--- a/demos/gtk-demo/geninclude.py
+++ b/demos/gtk-demo/geninclude.py
@@ -33,7 +33,7 @@ demos = []
 for demo_file in in_files:
    filename =  demo_file[demo_file.rfind('/')+1:]
    demo_name = filename.replace(".c", "")
-    with open(demo_file, 'r') as f:
+    with open(demo_file, 'r', encoding='utf-8') as f:
        title = f.readline().replace("/*", "").strip()


--- a/demos/gtk-demo/gtkgears.c
+++ b/demos/gtk-demo/gtkgears.c
@@ -0,0 +1,960 @@
+/* The rendering code in here is taken from es2gears, which has the
+ * following copyright notice:
+ *
+ * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Ported to GLES2.
+ * Kristian Høgsberg <krh@bitplanet.net>
+ * May 3, 2010
+ *
+ * Improve GLES2 port:
+ *   * Refactor gear drawing.
+ *   * Use correct normals for surfaces.
+ *   * Improve shader.
+ *   * Use perspective projection transformation.
+ *   * Add FPS count.
+ *   * Add comments.
+ * Alexandros Frantzis <alexandros.frantzis@linaro.org>
+ * Jul 13, 2010
+ */
+
+#include "config.h"
+
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+#include <epoxy/gl.h>
+
+#include "gtkgears.h"
+
+#define STRIPS_PER_TOOTH 7
+#define VERTICES_PER_TOOTH 34
+#define GEAR_VERTEX_STRIDE 6
+
+#ifndef HAVE_SINCOS
+static void
+sincos (double x, double *_sin, double *_cos)
+{
+  *_sin = sin (x);
+  *_cos = cos (x);
+}
+#endif
+
+/**
+ * Struct describing the vertices in triangle strip
+ */
+struct vertex_strip {
+   /** The first vertex in the strip */
+   GLint first;
+   /** The number of consecutive vertices in the strip after the first */
+   GLint count;
+};
+
+/* Each vertex consist of GEAR_VERTEX_STRIDE GLfloat attributes */
+typedef GLfloat GearVertex[GEAR_VERTEX_STRIDE];
+
+/**
+ * Struct representing a gear.
+ */
+struct gear {
+   /** The array of vertices comprising the gear */
+   GearVertex *vertices;
+   /** The number of vertices comprising the gear */
+   int nvertices;
+   /** The array of triangle strips comprising the gear */
+   struct vertex_strip *strips;
+   /** The number of triangle strips comprising the gear */
+   int nstrips;
+};
+
+typedef struct {
+  /* The view rotation [x, y, z] */
+  GLfloat view_rot[GTK_GEARS_N_AXIS];
+
+  /* The Vertex Array Object */
+  GLuint vao;
+
+  /* The shader program */
+  GLuint program;
+
+  /* The gears */
+  struct gear *gear1;
+  struct gear *gear2;
+  struct gear *gear3;
+
+  /** The Vertex Buffer Object holding the vertices in the graphics card */
+  GLuint gear_vbo[3];
+
+  /** The location of the shader uniforms */
+  GLuint ModelViewProjectionMatrix_location;
+  GLuint NormalMatrix_location;
+  GLuint LightSourcePosition_location;
+  GLuint MaterialColor_location;
+
+  /* The current gear rotation angle */
+  GLfloat angle;
+
+  /* The projection matrix */
+  GLfloat ProjectionMatrix[16];
+
+  /* The direction of the directional light for the scene */
+  GLfloat LightSourcePosition[4];
+
+  gint64 first_frame_time;
+  guint tick;
+  GtkLabel *fps_label;
+} GtkGearsPrivate;
+
+G_DEFINE_TYPE_WITH_PRIVATE (GtkGears, gtk_gears, GTK_TYPE_GL_AREA)
+
+static gboolean gtk_gears_render        (GtkGLArea     *area,
+                                         GdkGLContext  *context);
+static void     gtk_gears_reshape       (GtkGLArea     *area,
+                                         int            width,
+                                         int            height);
+static void     gtk_gears_realize       (GtkWidget     *widget);
+static void     gtk_gears_unrealize     (GtkWidget     *widget);
+static gboolean gtk_gears_tick          (GtkWidget     *widget,
+                                         GdkFrameClock *frame_clock,
+                                         gpointer       user_data);
+
+static void destroy_gear (struct gear *g);
+
+GtkWidget *
+gtk_gears_new (void)
+{
+  return g_object_new (gtk_gears_get_type (),
+                       "has-depth-buffer", TRUE,
+                       NULL);
+}
+
+static void
+gtk_gears_init (GtkGears *gears)
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+
+  priv->view_rot[GTK_GEARS_X_AXIS] = 20.0;
+  priv->view_rot[GTK_GEARS_Y_AXIS] = 30.0;
+  priv->view_rot[GTK_GEARS_Z_AXIS] = 20.0;
+
+  priv->LightSourcePosition[0] = 5.0;
+  priv->LightSourcePosition[1] = 5.0;
+  priv->LightSourcePosition[2] = 10.0;
+  priv->LightSourcePosition[3] = 1.0;
+
+  priv->tick = gtk_widget_add_tick_callback (GTK_WIDGET (gears), gtk_gears_tick, gears, NULL);
+}
+
+static void
+gtk_gears_finalize (GObject *obj)
+{
+  GtkGears *gears = GTK_GEARS (obj);
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+
+  gtk_widget_remove_tick_callback (GTK_WIDGET (gears), priv->tick);
+
+  g_clear_object (&priv->fps_label);
+
+  g_clear_pointer (&priv->gear1, destroy_gear);
+  g_clear_pointer (&priv->gear2, destroy_gear);
+  g_clear_pointer (&priv->gear3, destroy_gear);
+
+  G_OBJECT_CLASS (gtk_gears_parent_class)->finalize (obj);
+}
+
+static void
+gtk_gears_class_init (GtkGearsClass *klass)
+{
+  GTK_GL_AREA_CLASS (klass)->render = gtk_gears_render;
+  GTK_GL_AREA_CLASS (klass)->resize = gtk_gears_reshape;
+
+  GTK_WIDGET_CLASS (klass)->realize = gtk_gears_realize;
+  GTK_WIDGET_CLASS (klass)->unrealize = gtk_gears_unrealize;
+
+  G_OBJECT_CLASS (klass)->finalize = gtk_gears_finalize;
+}
+
+/*
+ * Fills a gear vertex.
+ *
+ * @param v the vertex to fill
+ * @param x the x coordinate
+ * @param y the y coordinate
+ * @param z the z coortinate
+ * @param n pointer to the normal table
+ *
+ * @return the operation error code
+ */
+static GearVertex *
+vert (GearVertex *v,
+      GLfloat x,
+      GLfloat y,
+      GLfloat z,
+      GLfloat n[3])
+{
+  v[0][0] = x;
+  v[0][1] = y;
+  v[0][2] = z;
+  v[0][3] = n[0];
+  v[0][4] = n[1];
+  v[0][5] = n[2];
+
+  return v + 1;
+}
+
+static void
+destroy_gear (struct gear *g)
+{
+  g_free (g->strips);
+  g_free (g);
+}
+
+/**
+ *  Create a gear wheel.
+ *
+ *  @param inner_radius radius of hole at center
+ *  @param outer_radius radius at center of teeth
+ *  @param width width of gear
+ *  @param teeth number of teeth
+ *  @param tooth_depth depth of tooth
+ *
+ *  @return pointer to the constructed struct gear
+ */
+static struct gear *
+create_gear (GLfloat inner_radius,
+             GLfloat outer_radius,
+             GLfloat width,
+             GLint teeth,
+             GLfloat tooth_depth)
+{
+  GLfloat r0, r1, r2;
+  GLfloat da;
+  GearVertex *v;
+  struct gear *gear;
+  double s[5], c[5];
+  GLfloat normal[3];
+  int cur_strip = 0;
+  int i;
+
+  /* Allocate memory for the gear */
+  gear = g_malloc (sizeof *gear);
+
+  /* Calculate the radii used in the gear */
+  r0 = inner_radius;
+  r1 = outer_radius - tooth_depth / 2.0;
+  r2 = outer_radius + tooth_depth / 2.0;
+
+  da = 2.0 * M_PI / teeth / 4.0;
+
+  /* Allocate memory for the triangle strip information */
+  gear->nstrips = STRIPS_PER_TOOTH * teeth;
+  gear->strips = g_malloc0_n (gear->nstrips, sizeof (*gear->strips));
+
+  /* Allocate memory for the vertices */
+  gear->vertices = g_malloc0_n (VERTICES_PER_TOOTH * teeth, sizeof(*gear->vertices));
+  v = gear->vertices;
+
+  for (i = 0; i < teeth; i++) {
+    /* A set of macros for making the creation of the gears easier */
+#define  GEAR_POINT(p, r, da) do { p.x = (r) * c[(da)]; p.y = (r) * s[(da)]; } while(0)
+#define  SET_NORMAL(x, y, z) do { \
+   normal[0] = (x); normal[1] = (y); normal[2] = (z); \
+} while(0)
+
+#define  GEAR_VERT(v, point, sign) vert((v), p[(point)].x, p[(point)].y, (sign) * width * 0.5, normal)
+
+#define START_STRIP do { \
+   gear->strips[cur_strip].first = v - gear->vertices; \
+} while(0);
+
+#define END_STRIP do { \
+   int _tmp = (v - gear->vertices); \
+   gear->strips[cur_strip].count = _tmp - gear->strips[cur_strip].first; \
+   cur_strip++; \
+} while (0)
+
+#define QUAD_WITH_NORMAL(p1, p2) do { \
+   SET_NORMAL((p[(p1)].y - p[(p2)].y), -(p[(p1)].x - p[(p2)].x), 0); \
+   v = GEAR_VERT(v, (p1), -1); \
+   v = GEAR_VERT(v, (p1), 1); \
+   v = GEAR_VERT(v, (p2), -1); \
+   v = GEAR_VERT(v, (p2), 1); \
+} while(0)
+    struct point {
+      GLfloat x;
+      GLfloat y;
+    };
+
+    /* Create the 7 points (only x,y coords) used to draw a tooth */
+    struct point p[7];
+
+    /* Calculate needed sin/cos for varius angles */
+    sincos(i * 2.0 * G_PI / teeth + da * 0, &s[0], &c[0]);
+    sincos(i * 2.0 * M_PI / teeth + da * 1, &s[1], &c[1]);
+    sincos(i * 2.0 * M_PI / teeth + da * 2, &s[2], &c[2]);
+    sincos(i * 2.0 * M_PI / teeth + da * 3, &s[3], &c[3]);
+    sincos(i * 2.0 * M_PI / teeth + da * 4, &s[4], &c[4]);
+
+    GEAR_POINT(p[0], r2, 1);
+    GEAR_POINT(p[1], r2, 2);
+    GEAR_POINT(p[2], r1, 0);
+    GEAR_POINT(p[3], r1, 3);
+    GEAR_POINT(p[4], r0, 0);
+    GEAR_POINT(p[5], r1, 4);
+    GEAR_POINT(p[6], r0, 4);
+
+    /* Front face */
+    START_STRIP;
+    SET_NORMAL(0, 0, 1.0);
+    v = GEAR_VERT(v, 0, +1);
+    v = GEAR_VERT(v, 1, +1);
+    v = GEAR_VERT(v, 2, +1);
+    v = GEAR_VERT(v, 3, +1);
+    v = GEAR_VERT(v, 4, +1);
+    v = GEAR_VERT(v, 5, +1);
+    v = GEAR_VERT(v, 6, +1);
+    END_STRIP;
+
+    /* Inner face */
+    START_STRIP;
+    QUAD_WITH_NORMAL(4, 6);
+    END_STRIP;
+
+    /* Back face */
+    START_STRIP;
+    SET_NORMAL(0, 0, -1.0);
+    v = GEAR_VERT(v, 6, -1);
+    v = GEAR_VERT(v, 5, -1);
+    v = GEAR_VERT(v, 4, -1);
+    v = GEAR_VERT(v, 3, -1);
+    v = GEAR_VERT(v, 2, -1);
+    v = GEAR_VERT(v, 1, -1);
+    v = GEAR_VERT(v, 0, -1);
+    END_STRIP;
+
+    /* Outer face */
+    START_STRIP;
+    QUAD_WITH_NORMAL(0, 2);
+    END_STRIP;
+
+    START_STRIP;
+    QUAD_WITH_NORMAL(1, 0);
+    END_STRIP;
+
+    START_STRIP;
+    QUAD_WITH_NORMAL(3, 1);
+    END_STRIP;
+
+    START_STRIP;
+    QUAD_WITH_NORMAL(5, 3);
+    END_STRIP;
+  }
+
+  gear->nvertices = (v - gear->vertices);
+
+  return gear;
+}
+
+/** 
+ * Multiplies two 4x4 matrices.
+ *
+ * The result is stored in matrix m.
+ *
+ * @param m the first matrix to multiply
+ * @param n the second matrix to multiply
+ */
+static void
+multiply (GLfloat *m, const GLfloat *n)
+{
+   GLfloat tmp[16];
+   const GLfloat *row, *column;
+   div_t d;
+   int i, j;
+
+   for (i = 0; i < 16; i++) {
+      tmp[i] = 0;
+      d = div(i, 4);
+      row = n + d.quot * 4;
+      column = m + d.rem;
+      for (j = 0; j < 4; j++)
+         tmp[i] += row[j] * column[j * 4];
+   }
+   memcpy(m, &tmp, sizeof tmp);
+}
+
+/** 
+ * Rotates a 4x4 matrix.
+ *
+ * @param[in,out] m the matrix to rotate
+ * @param angle the angle to rotate
+ * @param x the x component of the direction to rotate to
+ * @param y the y component of the direction to rotate to
+ * @param z the z component of the direction to rotate to
+ */
+static void
+rotate(GLfloat *m, GLfloat angle, GLfloat x, GLfloat y, GLfloat z)
+{
+   double s = sin (angle);
+   double c = cos (angle);
+
+   GLfloat r[16] = {
+      x * x * (1 - c) + c,     y * x * (1 - c) + z * s, x * z * (1 - c) - y * s, 0,
+      x * y * (1 - c) - z * s, y * y * (1 - c) + c,     y * z * (1 - c) + x * s, 0,
+      x * z * (1 - c) + y * s, y * z * (1 - c) - x * s, z * z * (1 - c) + c,     0,
+      0, 0, 0, 1
+   };
+
+   multiply(m, r);
+}
+
+/** 
+ * Translates a 4x4 matrix.
+ * 
+ * @param[in,out] m the matrix to translate
+ * @param x the x component of the direction to translate to
+ * @param y the y component of the direction to translate to
+ * @param z the z component of the direction to translate to
+ */
+static void
+translate(GLfloat *m, GLfloat x, GLfloat y, GLfloat z)
+{
+   GLfloat t[16] = { 1, 0, 0, 0,  0, 1, 0, 0,  0, 0, 1, 0,  x, y, z, 1 };
+
+   multiply(m, t);
+}
+
+/** 
+ * Creates an identity 4x4 matrix.
+ * 
+ * @param m the matrix make an identity matrix
+ */
+static void
+identity(GLfloat *m)
+{
+   GLfloat t[16] = {
+      1.0, 0.0, 0.0, 0.0,
+      0.0, 1.0, 0.0, 0.0,
+      0.0, 0.0, 1.0, 0.0,
+      0.0, 0.0, 0.0, 1.0,
+   };
+
+   memcpy(m, t, sizeof(t));
+}
+
+/** 
+ * Transposes a 4x4 matrix.
+ *
+ * @param m the matrix to transpose
+ */
+static void
+transpose(GLfloat *m)
+{
+   GLfloat t[16] = {
+      m[0], m[4], m[8],  m[12],
+      m[1], m[5], m[9],  m[13],
+      m[2], m[6], m[10], m[14],
+      m[3], m[7], m[11], m[15]};
+
+   memcpy(m, t, sizeof(t));
+}
+
+/**
+ * Inverts a 4x4 matrix.
+ *
+ * This function can currently handle only pure translation-rotation matrices.
+ * Read http://www.gamedev.net/community/forums/topic.asp?topic_id=425118
+ * for an explanation.
+ */
+static void
+invert(GLfloat *m)
+{
+   GLfloat t[16];
+   identity(t);
+
+   // Extract and invert the translation part 't'. The inverse of a
+   // translation matrix can be calculated by negating the translation
+   // coordinates.
+   t[12] = -m[12]; t[13] = -m[13]; t[14] = -m[14];
+
+   // Invert the rotation part 'r'. The inverse of a rotation matrix is
+   // equal to its transpose.
+   m[12] = m[13] = m[14] = 0;
+   transpose(m);
+
+   // inv(m) = inv(r) * inv(t)
+   multiply(m, t);
+}
+
+/** 
+ * Calculate a perspective projection transformation.
+ * 
+ * @param m the matrix to save the transformation in
+ * @param fovy the field of view in the y direction
+ * @param aspect the view aspect ratio
+ * @param zNear the near clipping plane
+ * @param zFar the far clipping plane
+ */
+void perspective(GLfloat *m, GLfloat fovy, GLfloat aspect, GLfloat zNear, GLfloat zFar)
+{
+   GLfloat tmp[16];
+   double sine, cosine, cotangent, deltaZ;
+   GLfloat radians = fovy / 2 * M_PI / 180;
+   identity(tmp);
+
+   deltaZ = zFar - zNear;
+   sincos(radians, &sine, &cosine);
+
+   if ((deltaZ == 0) || (sine == 0) || (aspect == 0))
+      return;
+
+   cotangent = cosine / sine;
+
+   tmp[0] = cotangent / aspect;
+   tmp[5] = cotangent;
+   tmp[10] = -(zFar + zNear) / deltaZ;
+   tmp[11] = -1;
+   tmp[14] = -2 * zNear * zFar / deltaZ;
+   tmp[15] = 0;
+
+   memcpy(m, tmp, sizeof(tmp));
+}
+
+/**
+ * Draws a gear.
+ *
+ * @param gear the gear to draw
+ * @param transform the current transformation matrix
+ * @param x the x position to draw the gear at
+ * @param y the y position to draw the gear at
+ * @param angle the rotation angle of the gear
+ * @param color the color of the gear
+ */
+static void
+draw_gear(GtkGears *self,
+          struct gear *gear,
+          GLuint gear_vbo,
+          GLfloat *transform,
+          GLfloat x,
+          GLfloat y,
+          GLfloat angle,
+          const GLfloat color[4])
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (self);
+  GLfloat model_view[16];
+  GLfloat normal_matrix[16];
+  GLfloat model_view_projection[16];
+  int n;
+
+  /* Translate and rotate the gear */
+  memcpy(model_view, transform, sizeof (model_view));
+  translate(model_view, x, y, 0);
+  rotate(model_view, 2 * G_PI * angle / 360.0, 0, 0, 1);
+
+  /* Create and set the ModelViewProjectionMatrix */
+  memcpy(model_view_projection, priv->ProjectionMatrix, sizeof(model_view_projection));
+  multiply(model_view_projection, model_view);
+
+  glUniformMatrix4fv(priv->ModelViewProjectionMatrix_location, 1, GL_FALSE,
+                     model_view_projection);
+
+  /* 
+   * Create and set the NormalMatrix. It's the inverse transpose of the
+   * ModelView matrix.
+   */
+  memcpy(normal_matrix, model_view, sizeof (normal_matrix));
+  invert(normal_matrix);
+  transpose(normal_matrix);
+  glUniformMatrix4fv(priv->NormalMatrix_location, 1, GL_FALSE, normal_matrix);
+
+  /* Set the gear color */
+  glUniform4fv(priv->MaterialColor_location, 1, color);
+
+  /* Set the vertex buffer object to use */
+  glBindBuffer(GL_ARRAY_BUFFER, gear_vbo);
+
+  /* Set up the position of the attributes in the vertex buffer object */
+  glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(GLfloat), NULL);
+  glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(GLfloat), (GLfloat *) 0 + 3);
+
+  /* Enable the attributes */
+  glEnableVertexAttribArray(0);
+  glEnableVertexAttribArray(1);
+
+  /* Draw the triangle strips that comprise the gear */
+  for (n = 0; n < gear->nstrips; n++) {
+    glDrawArrays(GL_TRIANGLE_STRIP, gear->strips[n].first, gear->strips[n].count);
+  }
+
+  /* Disable the attributes */
+  glDisableVertexAttribArray(1);
+  glDisableVertexAttribArray(0);
+}
+
+/* new window size or exposure */
+static void
+gtk_gears_reshape (GtkGLArea *area, int width, int height)
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private ((GtkGears *) area);
+
+  /* Update the projection matrix */
+  perspective (priv->ProjectionMatrix, 60.0, width / (float)height, 1.0, 1024.0);
+
+  /* Set the viewport */
+  glViewport (0, 0, (GLint) width, (GLint) height);
+}
+
+static gboolean
+gtk_gears_render (GtkGLArea    *area,
+                  GdkGLContext *context)
+{
+  static const GLfloat red[4]   = { 0.8, 0.1, 0.0, 1.0 };
+  static const GLfloat green[4] = { 0.0, 0.8, 0.2, 1.0 };
+  static const GLfloat blue[4]  = { 0.2, 0.2, 1.0, 1.0 };
+
+  GtkGears *self = GTK_GEARS (area);
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (self);
+  GLfloat transform[16];
+
+  identity (transform);
+
+  glClearColor (0.0, 0.0, 0.0, 0.0);
+  glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+  /* Translate and rotate the view */
+  translate (transform, 0, 0, -20);
+  rotate (transform, 2 * G_PI * priv->view_rot[0] / 360.0, 1, 0, 0);
+  rotate (transform, 2 * G_PI * priv->view_rot[1] / 360.0, 0, 1, 0);
+  rotate (transform, 2 * G_PI * priv->view_rot[2] / 360.0, 0, 0, 1);
+
+  /* Draw the gears */
+  draw_gear (self, priv->gear1, priv->gear_vbo[0], transform, -3.0, -2.0,      priv->angle,        red);
+  draw_gear (self, priv->gear2, priv->gear_vbo[1], transform,  3.1, -2.0, -2 * priv->angle - 9.0,  green);
+  draw_gear (self, priv->gear3, priv->gear_vbo[2], transform, -3.1,  4.2, -2 * priv->angle - 25.0, blue);
+
+  return TRUE;
+}
+
+static const char vertex_shader_gl[] =
+"#version 150\n"
+"\n"
+"in vec3 position;\n"
+"in vec3 normal;\n"
+"\n"
+"uniform mat4 ModelViewProjectionMatrix;\n"
+"uniform mat4 NormalMatrix;\n"
+"uniform vec4 LightSourcePosition;\n"
+"uniform vec4 MaterialColor;\n"
+"\n"
+"smooth out vec4 Color;\n"
+"\n"
+"void main(void)\n"
+"{\n"
+"    // Transform the normal to eye coordinates\n"
+"    vec3 N = normalize(vec3(NormalMatrix * vec4(normal, 1.0)));\n"
+"\n"
+"    // The LightSourcePosition is actually its direction for directional light\n"
+"    vec3 L = normalize(LightSourcePosition.xyz);\n"
+"\n"
+"    // Multiply the diffuse value by the vertex color (which is fixed in this case)\n"
+"    // to get the actual color that we will use to draw this vertex with\n"
+"    float diffuse = max(dot(N, L), 0.0);\n"
+"    Color = diffuse * MaterialColor;\n"
+"\n"
+"    // Transform the position to clip coordinates\n"
+"    gl_Position = ModelViewProjectionMatrix * vec4(position, 1.0);\n"
+"}";
+
+static const char fragment_shader_gl[] =
+"#version 150\n"
+"\n"
+"smooth in vec4 Color;\n"
+"\n"
+"void main(void)\n"
+"{\n"
+"    gl_FragColor = Color;\n"
+"}";
+
+static const char vertex_shader_gles[] =
+"attribute vec3 position;\n"
+"attribute vec3 normal;\n"
+"\n"
+"uniform mat4 ModelViewProjectionMatrix;\n"
+"uniform mat4 NormalMatrix;\n"
+"uniform vec4 LightSourcePosition;\n"
+"uniform vec4 MaterialColor;\n"
+"\n"
+"varying vec4 Color;\n"
+"\n"
+"void main(void)\n"
+"{\n"
+"    // Transform the normal to eye coordinates\n"
+"    vec3 N = normalize(vec3(NormalMatrix * vec4(normal, 1.0)));\n"
+"\n"
+"    // The LightSourcePosition is actually its direction for directional light\n"
+"    vec3 L = normalize(LightSourcePosition.xyz);\n"
+"\n"
+"    // Multiply the diffuse value by the vertex color (which is fixed in this case)\n"
+"    // to get the actual color that we will use to draw this vertex with\n"
+"    float diffuse = max(dot(N, L), 0.0);\n"
+"    Color = diffuse * MaterialColor;\n"
+"\n"
+"    // Transform the position to clip coordinates\n"
+"    gl_Position = ModelViewProjectionMatrix * vec4(position, 1.0);\n"
+"}";
+
+static const char fragment_shader_gles[] =
+"precision mediump float;\n"
+"varying vec4 Color;\n"
+"\n"
+"void main(void)\n"
+"{\n"
+"    gl_FragColor = Color;\n"
+"}";
+
+static void
+gtk_gears_realize (GtkWidget *widget)
+{
+  GtkGLArea *glarea = GTK_GL_AREA (widget);
+  GtkGears *gears = GTK_GEARS (widget);
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+  GdkGLContext *context;
+  GLuint vao, v, f, program;
+  const char *p;
+  char msg[512];
+
+  GTK_WIDGET_CLASS (gtk_gears_parent_class)->realize (widget);
+
+  gtk_gl_area_make_current (glarea);
+  if (gtk_gl_area_get_error (glarea) != NULL)
+    return;
+
+  context = gtk_gl_area_get_context (glarea);
+
+  glEnable (GL_CULL_FACE);
+  glEnable (GL_DEPTH_TEST);
+
+  /* Create the VAO */
+  glGenVertexArrays (1, &vao);
+  glBindVertexArray (vao);
+  priv->vao = vao;
+
+  /* Compile the vertex shader */
+  if (gdk_gl_context_get_use_es (context))
+    p = vertex_shader_gles;
+  else
+    p = vertex_shader_gl;
+  v = glCreateShader(GL_VERTEX_SHADER);
+  glShaderSource(v, 1, &p, NULL);
+  glCompileShader(v);
+  glGetShaderInfoLog(v, sizeof msg, NULL, msg);
+  g_print ("vertex shader info: %s\n", msg);
+
+  /* Compile the fragment shader */
+  if (gdk_gl_context_get_use_es (context))
+    p = fragment_shader_gles;
+  else
+    p = fragment_shader_gl;
+  f = glCreateShader(GL_FRAGMENT_SHADER);
+  glShaderSource(f, 1, &p, NULL);
+  glCompileShader(f);
+  glGetShaderInfoLog(f, sizeof msg, NULL, msg);
+  g_print ("fragment shader info: %s\n", msg);
+
+  /* Create and link the shader program */
+  program = glCreateProgram();
+  glAttachShader(program, v);
+  glAttachShader(program, f);
+  glBindAttribLocation(program, 0, "position");
+  glBindAttribLocation(program, 1, "normal");
+
+  glLinkProgram(program);
+  glGetProgramInfoLog(program, sizeof msg, NULL, msg);
+  g_print ("program info: %s\n", msg);
+  glDeleteShader (v);
+  glDeleteShader (f);
+
+  /* Enable the shaders */
+  glUseProgram(program);
+  priv->program = program;
+
+  /* Get the locations of the uniforms so we can access them */
+  priv->ModelViewProjectionMatrix_location = glGetUniformLocation(program, "ModelViewProjectionMatrix");
+  priv->NormalMatrix_location = glGetUniformLocation(program, "NormalMatrix");
+  priv->LightSourcePosition_location = glGetUniformLocation(program, "LightSourcePosition");
+  priv->MaterialColor_location = glGetUniformLocation(program, "MaterialColor");
+
+  /* Set the LightSourcePosition uniform which is constant throught the program */
+  glUniform4fv(priv->LightSourcePosition_location, 1, priv->LightSourcePosition);
+
+  /* make the gears */
+  priv->gear1 = create_gear(1.0, 4.0, 1.0, 20, 0.7);
+
+  /* Store the vertices in a vertex buffer object (VBO) */
+  glGenBuffers (1, &(priv->gear_vbo[0]));
+  glBindBuffer (GL_ARRAY_BUFFER, priv->gear_vbo[0]);
+  glBufferData (GL_ARRAY_BUFFER,
+                priv->gear1->nvertices * sizeof(GearVertex),
+                priv->gear1->vertices,
+                GL_STATIC_DRAW);
+
+  priv->gear2 = create_gear(0.5, 2.0, 2.0, 10, 0.7);
+  glGenBuffers (1, &(priv->gear_vbo[1]));
+  glBindBuffer (GL_ARRAY_BUFFER, priv->gear_vbo[1]);
+  glBufferData (GL_ARRAY_BUFFER,
+                priv->gear2->nvertices * sizeof(GearVertex),
+                priv->gear2->vertices,
+                GL_STATIC_DRAW);
+
+  priv->gear3 = create_gear(1.3, 2.0, 0.5, 10, 0.7);
+  glGenBuffers (1, &(priv->gear_vbo[2]));
+  glBindBuffer (GL_ARRAY_BUFFER, priv->gear_vbo[2]);
+  glBufferData (GL_ARRAY_BUFFER,
+                priv->gear3->nvertices * sizeof(GearVertex),
+                priv->gear3->vertices,
+                GL_STATIC_DRAW);
+}
+
+static void
+gtk_gears_unrealize (GtkWidget *widget)
+{
+  GtkGLArea *glarea = GTK_GL_AREA (widget);
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private ((GtkGears *) widget);
+
+  gtk_gl_area_make_current (glarea);
+  if (gtk_gl_area_get_error (glarea) != NULL)
+    return;
+
+  /* Release the resources associated with OpenGL */
+  if (priv->gear_vbo[0] != 0)
+    glDeleteBuffers (1, &(priv->gear_vbo[0]));
+
+  if (priv->gear_vbo[1] != 0)
+    glDeleteBuffers (1, &(priv->gear_vbo[1]));
+
+  if (priv->gear_vbo[2] != 0)
+    glDeleteBuffers (1, &(priv->gear_vbo[2]));
+
+  if (priv->vao != 0)
+    glDeleteVertexArrays (1, &priv->vao);
+
+  if (priv->program != 0)
+    glDeleteProgram (priv->program);
+
+  priv->ModelViewProjectionMatrix_location = 0;
+  priv->NormalMatrix_location = 0;
+  priv->LightSourcePosition_location = 0;
+  priv->MaterialColor_location = 0;
+
+  GTK_WIDGET_CLASS (gtk_gears_parent_class)->unrealize (widget);
+}
+
+static gboolean
+gtk_gears_tick (GtkWidget     *widget,
+                GdkFrameClock *frame_clock,
+                gpointer       user_data)
+{
+  GtkGears *gears = GTK_GEARS (widget);
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+  GdkFrameTimings *timings, *previous_timings;
+  gint64 previous_frame_time = 0;
+  gint64 frame_time;
+  gint64 history_start, history_len;
+  gint64 frame;
+  char *s;
+
+  frame = gdk_frame_clock_get_frame_counter (frame_clock);
+  frame_time = gdk_frame_clock_get_frame_time (frame_clock);
+
+  if (priv->first_frame_time == 0)
+    {
+      /* No need for changes on first frame */
+      priv->first_frame_time = frame_time;
+      if (priv->fps_label)
+        gtk_label_set_label (priv->fps_label, "FPS: ---");
+      return G_SOURCE_CONTINUE;
+    }
+
+  /* glxgears advances 70 degrees per second, so do the same */
+
+  priv->angle = fmod ((frame_time - priv->first_frame_time) / (double)G_USEC_PER_SEC * 70.0, 360.0);
+
+  gtk_widget_queue_draw (widget);
+
+  history_start = gdk_frame_clock_get_history_start (frame_clock);
+
+  if (priv->fps_label && frame % 60 == 0)
+    {
+      history_len = frame - history_start;
+      if (history_len > 0)
+        {
+          previous_timings = gdk_frame_clock_get_timings (frame_clock, frame - history_len);
+          previous_frame_time = gdk_frame_timings_get_frame_time (previous_timings);
+
+          s = g_strdup_printf ("FPS: %-4.1f", (G_USEC_PER_SEC * history_len) / (double)(frame_time - previous_frame_time));
+          gtk_label_set_label (priv->fps_label, s);
+          g_free (s);
+        }
+    }
+
+  timings = gdk_frame_clock_get_current_timings (frame_clock);
+  previous_timings = gdk_frame_clock_get_timings (frame_clock,
+                                                  gdk_frame_timings_get_frame_counter (timings) - 1);
+  if (previous_timings != NULL)
+    previous_frame_time = gdk_frame_timings_get_frame_time (previous_timings);
+
+  return G_SOURCE_CONTINUE;
+}
+
+void
+gtk_gears_set_axis (GtkGears *gears, int axis, double value)
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+
+  if (axis < 0 || axis >= GTK_GEARS_N_AXIS)
+    return;
+
+  priv->view_rot[axis] = value;
+
+  gtk_widget_queue_draw (GTK_WIDGET (gears));
+}
+
+double
+gtk_gears_get_axis (GtkGears *gears, int axis)
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+
+  if (axis < 0 || axis >= GTK_GEARS_N_AXIS)
+    return 0.0;
+
+  return priv->view_rot[axis];
+}
+
+void
+gtk_gears_set_fps_label (GtkGears *gears, GtkLabel *label)
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+
+  if (label)
+    g_object_ref (label);
+
+  g_clear_object (&priv->fps_label);
+
+  priv->fps_label = label;
+}
--- a/demos/gtk-demo/gtkgears.h
+++ b/demos/gtk-demo/gtkgears.h
@@ -0,0 +1,48 @@
+#ifndef __GTK_GEARS_H__
+#define __GTK_GEARS_H__
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+enum {
+  GTK_GEARS_X_AXIS,
+  GTK_GEARS_Y_AXIS,
+  GTK_GEARS_Z_AXIS,
+
+  GTK_GEARS_N_AXIS
+};
+
+#define GTK_TYPE_GEARS      (gtk_gears_get_type ())
+#define GTK_GEARS(inst)     (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
+                             GTK_TYPE_GEARS,             \
+                             GtkGears))
+#define GTK_IS_GEARS(inst)  (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
+                             GTK_TYPE_GEARS))
+
+typedef struct _GtkGears GtkGears;
+typedef struct _GtkGearsClass GtkGearsClass;
+
+struct _GtkGears {
+  GtkGLArea parent;
+};
+
+struct _GtkGearsClass {
+  GtkGLAreaClass parent_class;
+};
+
+GType      gtk_gears_get_type      (void) G_GNUC_CONST;
+
+GtkWidget *gtk_gears_new           (void);
+void       gtk_gears_set_axis      (GtkGears *gears,
+                                    int       axis,
+                                    double    value);
+double     gtk_gears_get_axis      (GtkGears *gears,
+                                    int       axis);
+void       gtk_gears_set_fps_label (GtkGears *gears,
+                                    GtkLabel *label);
+
+
+G_END_DECLS
+
+#endif /* __GTK_GEARS_H__ */
--- a/demos/gtk-demo/hypertext.c
+++ b/demos/gtk-demo/hypertext.c
@@ -105,14 +105,14 @@ follow_if_link (GtkWidget   *text_view,
 /* Links can be activated by pressing Enter.
 */
 static gboolean
-key_press_event (GtkWidget *text_view,
-                 GdkEventKey *event)
+key_pressed (GtkEventController *controller,
+             guint               keyval,
+             guint               keycode,
+             GdkModifierType     modifiers,
+             GtkWidget          *text_view)
 {
  GtkTextIter iter;
  GtkTextBuffer *buffer;
-  guint keyval;
-
-  gdk_event_get_keyval ((GdkEvent *)event, &keyval);

  switch (keyval)
    {
@@ -128,14 +128,18 @@ key_press_event (GtkWidget *text_view,
        break;
    }

-  return FALSE;
+  return GDK_EVENT_PROPAGATE;
 }

+static void set_cursor_if_appropriate (GtkTextView *text_view,
+                                       gint         x,
+                                       gint         y);
+
 /* Links can also be activated by clicking or tapping.
 */
 static gboolean
-event_after (GtkWidget *text_view,
-             GdkEvent  *ev)
+event_cb (GtkWidget *text_view,
+          GdkEvent  *ev)
 {
  GtkTextIter start, end, iter;
  GtkTextBuffer *buffer;
@@ -145,6 +149,11 @@ event_after (GtkWidget *text_view,

  type = gdk_event_get_event_type (ev);

+  gdk_event_get_coords (ev, &ex, &ey);
+  gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (text_view),
+                                         GTK_TEXT_WINDOW_WIDGET,
+                                         ex, ey, &x, &y);
+
  if (type == GDK_BUTTON_RELEASE)
    {
      guint button;
@@ -153,14 +162,17 @@ event_after (GtkWidget *text_view,
      if (button != GDK_BUTTON_PRIMARY)
        return FALSE;
    }
+  else if (type == GDK_MOTION_NOTIFY)
+    {
+      set_cursor_if_appropriate (GTK_TEXT_VIEW (text_view), x, y);
+      return FALSE;
+    }
  else if (type == GDK_TOUCH_END)
    {
    }
  else
    return FALSE;

-  gdk_event_get_coords (ev, &ex, &ey);
-
  buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));

  /* we shouldn't follow a link if the user has selected something */
@@ -168,10 +180,6 @@ event_after (GtkWidget *text_view,
  if (gtk_text_iter_get_offset (&start) != gtk_text_iter_get_offset (&end))
    return FALSE;

-  gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (text_view),
-                                         GTK_TEXT_WINDOW_WIDGET,
-                                         ex, ey, &x, &y);
-
  if (gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (text_view), &iter, x, y))
    follow_if_link (text_view, &iter);

@@ -223,25 +231,6 @@ set_cursor_if_appropriate (GtkTextView    *text_view,
    g_slist_free (tags);
 }

-/* Update the cursor image if the pointer moved.
- */
-static gboolean
-motion_notify_event (GtkWidget      *text_view,
-                     GdkEventMotion *event)
-{
-  gdouble ex, ey;
-  gint x, y;
-
-  gdk_event_get_coords ((GdkEvent *)event, &ex, &ey);
-  gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (text_view),
-                                         GTK_TEXT_WINDOW_WIDGET,
-                                         ex, ey, &x, &y);
-
-  set_cursor_if_appropriate (GTK_TEXT_VIEW (text_view), x, y);
-
-  return FALSE;
-}
-
 GtkWidget *
 do_hypertext (GtkWidget *do_widget)
 {
@@ -252,6 +241,7 @@ do_hypertext (GtkWidget *do_widget)
      GtkWidget *view;
      GtkWidget *sw;
      GtkTextBuffer *buffer;
+      GtkEventController *controller;

      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
      gtk_window_set_title (GTK_WINDOW (window), "Hypertext");
@@ -266,12 +256,11 @@ do_hypertext (GtkWidget *do_widget)
      gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view), GTK_WRAP_WORD);
      gtk_text_view_set_left_margin (GTK_TEXT_VIEW (view), 20);
      gtk_text_view_set_right_margin (GTK_TEXT_VIEW (view), 20);
-      g_signal_connect (view, "key-press-event",
-                        G_CALLBACK (key_press_event), NULL);
-      g_signal_connect (view, "event-after",
-                        G_CALLBACK (event_after), NULL);
-      g_signal_connect (view, "motion-notify-event",
-                        G_CALLBACK (motion_notify_event), NULL);
+      controller = gtk_event_controller_key_new (view);
+      g_object_set_data_full (G_OBJECT (view), "controller", controller, g_object_unref);
+      g_signal_connect (controller, "key-pressed", G_CALLBACK (key_pressed), view);
+      g_signal_connect (view, "event",
+                        G_CALLBACK (event_cb), NULL);

      buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));

--- a/demos/gtk-demo/images.c
+++ b/demos/gtk-demo/images.c
@@ -261,9 +261,7 @@ start_progressive_loading (GtkWidget *image)
   * The timeout simply simulates a slow data source by inserting
   * pauses in the reading process.
   */
-  load_timeout = gdk_threads_add_timeout (150,
-                                progressive_timeout,
-                                image);
+  load_timeout = g_timeout_add (150, progressive_timeout, image);
  g_source_set_name_by_id (load_timeout, "[gtk+] progressive_timeout");
 }

--- a/demos/gtk-demo/language-names.c
+++ b/demos/gtk-demo/language-names.c
@@ -0,0 +1,232 @@
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <dirent.h>
+#include <locale.h>
+#include <langinfo.h>
+#include <sys/stat.h>
+
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <glib/gstdio.h>
+#include <hb-ot.h>
+
+#include "language-names.h"
+
+#define ISO_CODES_DATADIR ISO_CODES_PREFIX "/share/xml/iso-codes"
+#define ISO_CODES_LOCALESDIR ISO_CODES_PREFIX "/share/locale"
+
+static GHashTable *language_map;
+
+static char *
+get_first_item_in_semicolon_list (const char *list)
+{
+  char **items;
+  char  *item;
+
+  items = g_strsplit (list, "; ", 2);
+
+  item = g_strdup (items[0]);
+  g_strfreev (items);
+
+  return item;
+}
+
+static char *
+capitalize_utf8_string (const char *str)
+{
+  char first[8] = { 0 };
+
+  if (!str)
+    return NULL;
+
+  g_unichar_to_utf8 (g_unichar_totitle (g_utf8_get_char (str)), first);
+
+  return g_strconcat (first, g_utf8_offset_to_pointer (str, 1), NULL);
+}
+
+static char *
+get_display_name (const char *language)
+{
+  const char  *translated;
+  char *tmp;
+  char *name;
+
+  translated = dgettext ("iso_639", language);
+
+  tmp = get_first_item_in_semicolon_list (translated);
+  name = capitalize_utf8_string (tmp);
+  g_free (tmp);
+
+  return name;
+}
+
+static void
+languages_parse_start_tag (GMarkupParseContext  *ctx,
+                           const char           *element_name,
+                           const char          **attr_names,
+                           const char          **attr_values,
+                           gpointer              user_data,
+                           GError              **error)
+{
+  const char *ccode_longB;
+  const char *ccode_longT;
+  const char *ccode;
+  const char *ccode_id;
+  const char *lang_name;
+  char *display_name;
+
+  if (!(g_str_equal (element_name, "iso_639_entry") ||
+        g_str_equal (element_name, "iso_639_3_entry")) ||
+        attr_names == NULL ||
+        attr_values == NULL)
+    return;
+
+  ccode = NULL;
+  ccode_longB = NULL;
+  ccode_longT = NULL;
+  ccode_id = NULL;
+  lang_name = NULL;
+
+  while (*attr_names && *attr_values)
+    {
+      if (g_str_equal (*attr_names, "iso_639_1_code"))
+        {
+          if (**attr_values)
+            {
+              if (strlen (*attr_values) != 2)
+                return;
+              ccode = *attr_values;
+            }
+        }
+      else if (g_str_equal (*attr_names, "iso_639_2B_code"))
+        {
+          if (**attr_values)
+            {
+              if (strlen (*attr_values) != 3)
+                return;
+              ccode_longB = *attr_values;
+            }
+        }
+      else if (g_str_equal (*attr_names, "iso_639_2T_code"))
+        {
+          if (**attr_values)
+            {
+              if (strlen (*attr_values) != 3)
+                return;
+              ccode_longT = *attr_values;
+            }
+        }
+      else if (g_str_equal (*attr_names, "id"))
+        {
+          if (**attr_values)
+            {
+              if (strlen (*attr_values) != 2 &&
+                  strlen (*attr_values) != 3)
+                return;
+              ccode_id = *attr_values;
+            }
+        }
+      else if (g_str_equal (*attr_names, "name"))
+        {
+          lang_name = *attr_values;
+        }
+
+      ++attr_names;
+      ++attr_values;
+    }
+
+  if (lang_name == NULL)
+    return;
+
+  display_name = get_display_name (lang_name);
+
+  if (ccode != NULL)
+    g_hash_table_insert (language_map,
+                         pango_language_from_string (ccode),
+                         g_strdup (display_name));
+
+  if (ccode_longB != NULL)
+    g_hash_table_insert (language_map,
+                         pango_language_from_string (ccode_longB),
+                         g_strdup (display_name));
+
+  if (ccode_longT != NULL)
+    g_hash_table_insert (language_map,
+                         pango_language_from_string (ccode_longT),
+                         g_strdup (display_name));
+
+  if (ccode_id != NULL)
+    g_hash_table_insert (language_map,
+                         pango_language_from_string (ccode_id),
+                         g_strdup (display_name));
+
+  g_free (display_name);
+}
+
+static void
+languages_variant_init (const char *variant)
+{
+  gboolean res;
+  gsize    buf_len;
+  g_autofree char *buf = NULL;
+  g_autofree char *filename = NULL;
+  g_autoptr (GError) error = NULL;
+
+  bindtextdomain (variant, ISO_CODES_LOCALESDIR);
+  bind_textdomain_codeset (variant, "UTF-8");
+
+  error = NULL;
+  filename = g_strconcat (ISO_CODES_DATADIR, "/", variant, ".xml", NULL);
+  res = g_file_get_contents (filename, &buf, &buf_len, &error);
+  if (res)
+    {
+      g_autoptr (GMarkupParseContext) ctx = NULL;
+      GMarkupParser parser = { languages_parse_start_tag, NULL, NULL, NULL, NULL };
+
+      ctx = g_markup_parse_context_new (&parser, 0, NULL, NULL);
+
+      error = NULL;
+      res = g_markup_parse_context_parse (ctx, buf, buf_len, &error);
+
+      if (!res)
+        g_warning ("Failed to parse '%s': %s\n", filename, error->message);
+    }
+  else
+    g_warning ("Failed to load '%s': %s\n", filename, error->message);
+}
+
+static void
+languages_init (void)
+{
+  if (language_map)
+    return;
+
+  language_map = g_hash_table_new_full (NULL, NULL, NULL, g_free);
+  languages_variant_init ("iso_639");
+  languages_variant_init ("iso_639_3");
+}
+
+const char *
+get_language_name (PangoLanguage *language)
+{
+  languages_init ();
+
+  return (const char *) g_hash_table_lookup (language_map, language);
+}
+
+const char *
+get_language_name_for_tag (guint32 tag)
+{
+  hb_language_t lang;
+  const char *s;
+
+  lang = hb_ot_tag_to_language (tag);
+  s = hb_language_to_string (lang);
+
+  return get_language_name (pango_language_from_string (s));
+}
--- a/demos/gtk-demo/language-names.h
+++ b/demos/gtk-demo/language-names.h
@@ -0,0 +1,13 @@
+#ifndef LANGUAGE_NAMES_H
+#define LANGUAGE_NAMES_H
+
+#include <pango/pango.h>
+
+G_BEGIN_DECLS
+
+const char * get_language_name (PangoLanguage *language);
+const char * get_language_name_for_tag (guint32 tag);
+
+G_END_DECLS
+
+#endif
--- a/demos/gtk-demo/list_store.c
+++ b/demos/gtk-demo/list_store.c
@@ -296,8 +296,7 @@ do_list_store (GtkWidget *do_widget)

      /* finish & show */
      gtk_window_set_default_size (GTK_WINDOW (window), 280, 250);
-      g_signal_connect (window, "delete-event",
-                        G_CALLBACK (window_closed), NULL);
+      g_signal_connect (window, "destroy", G_CALLBACK (window_closed), NULL);
    }

  if (!gtk_widget_get_visible (window))
--- a/demos/gtk-demo/listbox.ui
+++ b/demos/gtk-demo/listbox.ui
@@ -3,61 +3,53 @@
  <!-- interface-requires gtk+ 3.10 -->
  <!-- interface-requires gtkdemo 3.10 -->
  <object class="GtkMenu" id="menu1">
-    <property name="visible">1</property>
    <child>
      <object class="GtkMenuItem" id="menuitem1">
-        <property name="visible">1</property>
        <property name="label" translatable="yes">Email message</property>
-        <property name="use_underline">1</property>
+        <property name="use-underline">1</property>
      </object>
    </child>
    <child>
      <object class="GtkMenuItem" id="menuitem2">
-        <property name="visible">1</property>
        <property name="label" translatable="yes">Embed message</property>
-        <property name="use_underline">1</property>
+        <property name="use-underline">1</property>
      </object>
    </child>
  </object>
  <template class="GtkMessageRow" parent="GtkListBoxRow">
    <child>
      <object class="GtkGrid" id="grid1">
-        <property name="visible">1</property>
        <property name="hexpand">1</property>
        <child>
          <object class="GtkImage" id="avatar_image">
-            <property name="width_request">32</property>
-            <property name="height_request">32</property>
-            <property name="visible">1</property>
+            <property name="width-request">32</property>
+            <property name="height-request">32</property>
            <property name="halign">center</property>
            <property name="valign">start</property>
-            <property name="margin_top">8</property>
-            <property name="margin_bottom">8</property>
-            <property name="margin_start">8</property>
-            <property name="margin_end">8</property>
+            <property name="margin-top">8</property>
+            <property name="margin-bottom">8</property>
+            <property name="margin-start">8</property>
+            <property name="margin-end">8</property>
            <property name="icon-name">image-missing</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
            <property name="height">5</property>
          </packing>
        </child>
        <child>
          <object class="GtkBox" id="box1">
-            <property name="visible">1</property>
            <property name="hexpand">1</property>
-            <property name="baseline_position">top</property>
+            <property name="baseline-position">top</property>
            <child>
              <object class="GtkButton" id="button2">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="receives_default">1</property>
+                <property name="can-focus">1</property>
+                <property name="receives-default">1</property>
                <property name="valign">baseline</property>
                <property name="relief">none</property>
                <child>
                  <object class="GtkLabel" id="source_name">
-                    <property name="visible">1</property>
                    <property name="valign">baseline</property>
                    <property name="label" translatable="0">Username</property>
                    <attributes>
@@ -69,7 +61,6 @@
            </child>
            <child>
              <object class="GtkLabel" id="source_nick">
-                <property name="visible">1</property>
                <property name="valign">baseline</property>
                <property name="label" translatable="0">@nick</property>
                <style>
@@ -82,7 +73,6 @@
            </child>
            <child>
              <object class="GtkLabel" id="short_time_label">
-                <property name="visible">1</property>
                <property name="valign">baseline</property>
                <property name="label" translatable="yes">38m</property>
                <style>
@@ -90,19 +80,18 @@
                </style>
              </object>
              <packing>
-                <property name="pack_type">end</property>
+                <property name="pack-type">end</property>
                <property name="position">2</property>
              </packing>
            </child>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="content_label">
-            <property name="visible">1</property>
            <property name="halign">start</property>
            <property name="valign">start</property>
            <property name="xalign">0</property>
@@ -111,21 +100,19 @@
            <property name="wrap">1</property>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkBox" id="resent_box">
            <child>
              <object class="GtkImage" id="image2">
-                <property name="visible">1</property>
-                <property name="icon_name">media-playlist-repeat</property>
+                <property name="icon-name">media-playlist-repeat</property>
              </object>
            </child>
            <child>
              <object class="GtkLabel" id="label4">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Resent by</property>
              </object>
              <packing>
@@ -135,9 +122,8 @@
            <child>
              <object class="GtkLinkButton" id="resent_by_button">
                <property name="label" translatable="0">reshareer</property>
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="receives_default">1</property>
+                <property name="can-focus">1</property>
+                <property name="receives-default">1</property>
                <property name="relief">none</property>
                <property name="uri">http://www.gtk.org</property>
              </object>
@@ -147,20 +133,18 @@
            </child>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">2</property>
          </packing>
        </child>
        <child>
          <object class="GtkBox" id="box3">
-            <property name="visible">1</property>
            <property name="spacing">6</property>
            <child>
              <object class="GtkButton" id="expand_button">
                <property name="label" translatable="yes">Expand</property>
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="receives_default">1</property>
+                <property name="can-focus">1</property>
+                <property name="receives-default">1</property>
                <property name="relief">none</property>
                <signal name="clicked" handler="expand_clicked" swapped="yes"/>
              </object>
@@ -171,18 +155,16 @@
                <child>
                  <object class="GtkButton" id="reply-button">
                    <property name="label" translatable="yes">Reply</property>
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
-                    <property name="receives_default">1</property>
+                    <property name="can-focus">1</property>
+                    <property name="receives-default">1</property>
                    <property name="relief">none</property>
                  </object>
                </child>
                <child>
                  <object class="GtkButton" id="reshare-button">
                    <property name="label" translatable="yes">Reshare</property>
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
-                    <property name="receives_default">1</property>
+                    <property name="can-focus">1</property>
+                    <property name="receives-default">1</property>
                    <property name="relief">none</property>
                    <signal name="clicked" handler="reshare_clicked" swapped="yes"/>
                  </object>
@@ -193,9 +175,8 @@
                <child>
                  <object class="GtkButton" id="favorite-buttton">
                    <property name="label" translatable="yes">Favorite</property>
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
-                    <property name="receives_default">1</property>
+                    <property name="can-focus">1</property>
+                    <property name="receives-default">1</property>
                    <property name="relief">none</property>
                    <signal name="clicked" handler="favorite_clicked" swapped="yes"/>
                  </object>
@@ -205,14 +186,12 @@
                </child>
                <child>
                  <object class="GtkMenuButton" id="more-button">
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
-                    <property name="receives_default">1</property>
+                    <property name="can-focus">1</property>
+                    <property name="receives-default">1</property>
                    <property name="relief">none</property>
                    <property name="popup">menu1</property>
                    <child>
                      <object class="GtkLabel" id="label7">
-                        <property name="visible">1</property>
                        <property name="label" translatable="yes">More...</property>
                      </object>
                    </child>
@@ -228,53 +207,44 @@
            </child>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">3</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">3</property>
          </packing>
        </child>
        <child>
          <object class="GtkRevealer" id="details_revealer">
-            <property name="visible">1</property>
            <child>
              <object class="GtkBox" id="box5">
-                <property name="visible">1</property>
                <property name="orientation">vertical</property>
                <child>
                  <object class="GtkBox" id="box7">
-                    <property name="visible">1</property>
-                    <property name="margin_top">2</property>
-                    <property name="margin_bottom">2</property>
+                    <property name="margin-top">2</property>
+                    <property name="margin-bottom">2</property>
                    <property name="spacing">8</property>
                    <child>
                      <object class="GtkFrame" id="frame1">
-                        <property name="visible">1</property>
-                        <property name="shadow_type">none</property>
+                        <property name="shadow-type">none</property>
                        <child>
                          <object class="GtkLabel" id="n_reshares_label">
-                            <property name="visible">1</property>
                            <property name="label" translatable="0">&lt;b&gt;2&lt;/b&gt;
 Reshares</property>
-                            <property name="use_markup">1</property>
+                            <property name="use-markup">1</property>
                          </object>
                        </child>
-                        <child type="label_item">
-                        </child>
+                        <child type="label_item"/>
                      </object>
                    </child>
                    <child>
                      <object class="GtkFrame" id="frame2">
-                        <property name="visible">1</property>
-                        <property name="shadow_type">none</property>
+                        <property name="shadow-type">none</property>
                        <child>
                          <object class="GtkLabel" id="n_favorites_label">
-                            <property name="visible">1</property>
                            <property name="label" translatable="0">&lt;b&gt;2&lt;/b&gt;
 FAVORITES</property>
-                            <property name="use_markup">1</property>
+                            <property name="use-markup">1</property>
                          </object>
                        </child>
-                        <child type="label_item">
-                        </child>
+                        <child type="label_item"/>
                      </object>
                      <packing>
                        <property name="position">1</property>
@@ -287,10 +257,8 @@ FAVORITES</property>
                </child>
                <child>
                  <object class="GtkBox" id="box6">
-                    <property name="visible">1</property>
                    <child>
                      <object class="GtkLabel" id="detailed_time_label">
-                        <property name="visible">1</property>
                        <property name="label" translatable="0">4:25 AM - 14 Jun 13 </property>
                        <style>
                          <class name="dim-label"/>
@@ -300,9 +268,8 @@ FAVORITES</property>
                    <child>
                      <object class="GtkButton" id="button5">
                        <property name="label" translatable="yes">Details</property>
-                        <property name="visible">1</property>
-                        <property name="can_focus">1</property>
-                        <property name="receives_default">1</property>
+                        <property name="can-focus">1</property>
+                        <property name="receives-default">1</property>
                        <property name="relief">none</property>
                        <style>
                          <class name="dim-label"/>
@@ -321,8 +288,8 @@ FAVORITES</property>
            </child>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">4</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">4</property>
          </packing>
        </child>
      </object>
--- a/demos/gtk-demo/main.ui
+++ b/demos/gtk-demo/main.ui
@@ -19,24 +19,20 @@
    <property name="default-width">800</property>
    <property name="default-height">600</property>
    <property name="title">GTK+ Demo</property>
-    <signal name="delete-event" handler="gtk_false" swapped="no"/>
    <signal name="destroy" handler="gtk_main_quit" swapped="no"/>
    <child type="titlebar">
      <object class="GtkHeaderBar" id="headerbar">
-        <property name="visible">1</property>
        <property name="show-title-buttons">1</property>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="valign">center</property>
-            <property name="can_focus">1</property>
-            <property name="action_name">win.run</property>
+            <property name="can-focus">1</property>
+            <property name="action-name">win.run</property>
            <style>
              <class name="text-button"/>
            </style>
            <child>
              <object class="GtkLabel">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Run</property>
              </object>
            </child>
@@ -46,23 +42,19 @@
    </child>
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <child>
          <object class="GtkFrame">
-            <property name="visible">1</property>
            <child>
              <object class="GtkScrolledWindow">
-                <property name="width_request">120</property>
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="hscrollbar_policy">never</property>
-                <property name="min_content_width">150</property>
+                <property name="width-request">120</property>
+                <property name="can-focus">1</property>
+                <property name="hscrollbar-policy">never</property>
+                <property name="min-content-width">150</property>
                <child>
                  <object class="GtkTreeView" id="treeview">
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
+                    <property name="can-focus">1</property>
                    <property name="model">treestore</property>
-                    <property name="headers_visible">0</property>
+                    <property name="headers-visible">0</property>
                    <child internal-child="selection">
                      <object class="GtkTreeSelection" id="treeview-selection">
                        <property name="mode">browse</property>
@@ -92,77 +84,70 @@
        </child>
        <child>
          <object class="GtkNotebook" id="notebook">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+            <property name="can-focus">1</property>
            <property name="scrollable">1</property>
-            <property name="enable_popup">1</property>
-            <property name="show_border">0</property>
+            <property name="enable-popup">1</property>
+            <property name="show-border">0</property>
            <property name="expand">1</property>
            <child>
              <object class="GtkScrolledWindow">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
+                <property name="can-focus">1</property>
                <child>
                  <object class="GtkTextView" id="info-textview">
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
+                    <property name="can-focus">1</property>
                    <property name="left-margin">20</property>
                    <property name="right-margin">20</property>
                    <property name="top-margin">20</property>
                    <property name="bottom-margin">20</property>
-                    <property name="pixels_above_lines">2</property>
-                    <property name="pixels_below_lines">2</property>
+                    <property name="pixels-above-lines">2</property>
+                    <property name="pixels-below-lines">2</property>
                    <property name="editable">0</property>
-                    <property name="wrap_mode">word</property>
-                    <property name="cursor_visible">0</property>
+                    <property name="wrap-mode">word</property>
+                    <property name="cursor-visible">0</property>
                  </object>
                </child>
              </object>
              <packing>
-                <property name="tab_expand">1</property>
+                <property name="tab-expand">1</property>
              </packing>
            </child>
            <child type="tab">
              <object class="GtkLabel">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">_Info</property>
-                <property name="use_underline">1</property>
+                <property name="use-underline">1</property>
              </object>
              <packing>
-                <property name="tab_expand">1</property>
-                <property name="tab_fill">0</property>
+                <property name="tab-expand">1</property>
+                <property name="tab-fill">0</property>
              </packing>
            </child>
            <child>
              <object class="GtkScrolledWindow" id="source-scrolledwindow">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
+                <property name="can-focus">1</property>
                <child>
                  <object class="GtkTextView" id="source-textview">
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
+                    <property name="can-focus">1</property>
                    <property name="left-margin">20</property>
                    <property name="right-margin">20</property>
                    <property name="top-margin">20</property>
                    <property name="bottom-margin">20</property>
                    <property name="editable">0</property>
-                    <property name="cursor_visible">0</property>
+                    <property name="cursor-visible">0</property>
                  </object>
                </child>
              </object>
              <packing>
                <property name="position">1</property>
-                <property name="tab_expand">1</property>
+                <property name="tab-expand">1</property>
              </packing>
            </child>
            <child type="tab">
              <object class="GtkLabel">
-                <property name="visible">1</property>
                <property name="label" translatable="yes">Source</property>
              </object>
              <packing>
                <property name="position">1</property>
-                <property name="tab_fill">0</property>
+                <property name="tab-fill">0</property>
              </packing>
            </child>
          </object>
--- a/demos/gtk-demo/meson.build
+++ b/demos/gtk-demo/meson.build
@@ -66,7 +66,6 @@ demos = files([
  'textview.c',
  'textscroll.c',
  'theming_style_classes.c',
-  'toolpalette.c',
  'transparent.c',
  'tree_store.c',
 ])
@@ -94,7 +93,9 @@ gtkdemo_resources = gnome.compile_resources('gtkdemo_resources',
                                            source_dir: '.')

 executable('gtk4-demo',
-           'main.c', 'gtkfishbowl.c', demos, demos_h, gtkdemo_resources,
+           'main.c', 'gtkfishbowl.c', 'fontplane.c', 'script-names.c', 'language-names.c',
+                   'gtkgears.c',
+                   demos, demos_h, gtkdemo_resources,
           c_args: gtkdemo_args,
           dependencies: gtkdemo_deps,
           include_directories: confinc,
--- a/demos/gtk-demo/modelbutton.ui
+++ b/demos/gtk-demo/modelbutton.ui
@@ -4,23 +4,19 @@
  <object class="GtkWindow" id="window1">
    <child type="titlebar">
      <object class="GtkHeaderBar">
-        <property name="visible">1</property>
        <property name="show-title-buttons">1</property>
        <property name="title" translatable="yes">Model Button</property>
      </object>
    </child>
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <property name="orientation">vertical</property>
        <property name="margin">80</property>
        <child>
          <object class="GtkMenuButton">
-            <property name="visible">1</property>
            <property name="popover">thing_a</property>
            <child>
              <object class="GtkLabel">
-                <property name="visible">1</property>
                <property name="label">Color</property>
                <property name="hexpand">1</property>
              </object>
@@ -29,11 +25,9 @@
        </child>
        <child>
          <object class="GtkMenuButton">
-            <property name="visible">1</property>
            <property name="popover">thing_b</property>
            <child>
              <object class="GtkLabel">
-                <property name="visible">1</property>
                <property name="label">Flavors</property>
                <property name="hexpand">1</property>
              </object>
@@ -42,11 +36,9 @@
        </child>
        <child>
          <object class="GtkMenuButton">
-            <property name="visible">1</property>
            <property name="popover">thing_c</property>
            <child>
              <object class="GtkLabel">
-                <property name="visible">1</property>
                <property name="label">Tools</property>
                <property name="hexpand">1</property>
              </object>
@@ -59,32 +51,25 @@
  <object class="GtkPopover" id="thing_a">
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <property name="margin">10</property>
        <property name="orientation">vertical</property>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="action-name">win.color</property>
-            <property name="action-target">'red'</property>
            <property name="text">Red</property>
            <property name="inverted">1</property>
          </object>
        </child>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="action-name">win.color</property>
-            <property name="action-target">'green'</property>
            <property name="text">Green</property>
            <property name="inverted">1</property>
          </object>
        </child>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="action-name">win.color</property>
-            <property name="action-target">'blue'</property>
            <property name="text">Blue</property>
            <property name="inverted">1</property>
          </object>
@@ -95,32 +80,27 @@
  <object class="GtkPopover" id="thing_b">
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <property name="margin">10</property>
        <property name="orientation">vertical</property>
        <property name="spacing">10</property>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="action-name">win.chocolate</property>
            <property name="text">Chocolate</property>
          </object>
        </child>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="action-name">win.vanilla</property>
            <property name="text">Vanilla</property>
          </object>
        </child>
        <child>
          <object class="GtkSeparator">
-            <property name="visible">1</property>
          </object>
        </child>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="action-name">win.sprinkles</property>
            <property name="text">Add Sprinkles</property>
          </object>
@@ -131,13 +111,11 @@
  <object class="GtkPopover" id="thing_c">
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <property name="margin">10</property>
        <property name="orientation">vertical</property>
        <property name="spacing">10</property>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="text">Hammer</property>
            <property name="role">check</property>
            <signal name="clicked" handler="tool_clicked"/>
@@ -145,7 +123,6 @@
        </child>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="text">Screwdriver</property>
            <property name="role">check</property>
            <signal name="clicked" handler="tool_clicked"/>
@@ -153,7 +130,6 @@
        </child>
        <child>
          <object class="GtkModelButton">
-            <property name="visible">1</property>
            <property name="text">Drill</property>
            <property name="role">check</property>
            <signal name="clicked" handler="tool_clicked"/>
--- a/demos/gtk-demo/popover.ui
+++ b/demos/gtk-demo/popover.ui
@@ -43,32 +43,28 @@
  <object class="GtkWindow" id="window">
    <child>
      <object class="GtkBox" id="box">
-        <property name="visible">1</property>
        <property name="orientation">vertical</property>
        <property name="spacing">6</property>
        <child>
          <object class="GtkEntry" id="entry1">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="primary_icon_name">edit-find</property>
-            <property name="secondary_icon_name">edit-clear</property>
+            <property name="can-focus">1</property>
+            <property name="primary-icon-name">edit-find</property>
+            <property name="secondary-icon-name">edit-clear</property>
          </object>
        </child>
        <child>
          <object class="GtkScrolledWindow" id="scrolledwindow1">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="shadow_type">in</property>
+            <property name="can-focus">1</property>
+            <property name="shadow-type">in</property>
            <property name="max-content-height">100</property>
            <child>
              <object class="GtkTreeView" id="treeview1">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
+                <property name="can-focus">1</property>
                <property name="vexpand">1</property>
                <property name="model">liststore1</property>
-                <property name="headers_visible">0</property>
-                <property name="enable_search">0</property>
-                <property name="search_column">2</property>
+                <property name="headers-visible">0</property>
+                <property name="enable-search">0</property>
+                <property name="search-column">2</property>
                <child internal-child="selection">
                  <object class="GtkTreeSelection" id="treeview-selection1"/>
                </child>
--- a/demos/gtk-demo/revealer.ui
+++ b/demos/gtk-demo/revealer.ui
@@ -2,22 +2,19 @@
 <interface>
  <!-- interface-requires gtk+ 3.6 -->
  <object class="GtkWindow" id="window">
-    <property name="default_width">300</property>
-    <property name="default_height">300</property>
+    <property name="default-width">300</property>
+    <property name="default-height">300</property>
    <property name="title">Revealer</property>
    <child>
      <object class="GtkGrid">
-        <property name="visible">1</property>
        <property name="halign">center</property>
        <property name="valign">center</property>
        <child>
          <object class="GtkRevealer" id="revealer0">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <property name="transition-type">crossfade</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -30,12 +27,10 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer1">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <property name="transition-type">slide-up</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -48,12 +43,10 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer2">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <property name="transition-type">slide-right</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -66,11 +59,9 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer3">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -83,12 +74,10 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer4">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <property name="transition-type">slide-left</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -101,12 +90,10 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer5">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <property name="transition-type">slide-up</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -119,12 +106,10 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer6">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <property name="transition-type">slide-right</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -137,11 +122,9 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer7">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
@@ -154,12 +137,10 @@
        </child>
        <child>
          <object class="GtkRevealer" id="revealer8">
-            <property name="visible">1</property>
            <property name="transition-duration">2000</property>
            <property name="transition-type">slide-left</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="icon-name">face-cool-symbolic</property>
                <property name="icon-size">large</property>
              </object>
--- a/demos/gtk-demo/scale.ui
+++ b/demos/gtk-demo/scale.ui
@@ -23,52 +23,47 @@
    <property name="title" translatable="yes">Scales</property>
    <child>
      <object class="GtkGrid" id="grid1">
-        <property name="visible">1</property>
        <property name="row-spacing">10</property>
        <property name="column-spacing">10</property>
        <property name="margin">20</property>
        <child>
          <object class="GtkLabel">
-            <property name="visible">1</property>
            <property name="label">Plain</property>
            <property name="xalign">0</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkScale">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+            <property name="can-focus">1</property>
            <property name="width-request">200</property>
-            <property name="draw_value">0</property>
+            <property name="draw-value">0</property>
            <property name="adjustment">adjustment1</property>
            <property name="hexpand">1</property>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel">
-            <property name="visible">1</property>
            <property name="label">Marks</property>
            <property name="xalign">0</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkScale">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+            <property name="can-focus">1</property>
            <property name="width-request">200</property>
-            <property name="draw_value">0</property>
+            <property name="draw-value">0</property>
            <property name="adjustment">adjustment2</property>
            <property name="hexpand">1</property>
            <marks>
@@ -80,28 +75,26 @@
            </marks>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel">
-            <property name="visible">1</property>
            <property name="label">Discrete</property>
            <property name="xalign">0</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">2</property>
          </packing>
        </child>
        <child>
          <object class="GtkScale">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+            <property name="can-focus">1</property>
            <property name="width-request">200</property>
            <property name="round-digits">0</property>
-            <property name="draw_value">0</property>
+            <property name="draw-value">0</property>
            <property name="adjustment">adjustment3</property>
            <property name="hexpand">1</property>
            <marks>
@@ -113,8 +106,8 @@
            </marks>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">2</property>
          </packing>
        </child>
      </object>
--- a/demos/gtk-demo/script-names.c
+++ b/demos/gtk-demo/script-names.c
@@ -0,0 +1,184 @@
+#include "config.h"
+#include <glib.h>
+#include <glib/gi18n-lib.h>
+#include <hb-ot.h>
+
+#include "script-names.h"
+
+static struct {
+  GUnicodeScript script;
+  hb_script_t hb_script;
+  const char *name;
+} scripts[] =
+{
+  { G_UNICODE_SCRIPT_COMMON, HB_SCRIPT_COMMON,  NULL },
+  { G_UNICODE_SCRIPT_INHERITED, HB_SCRIPT_INHERITED,  NULL },
+  { G_UNICODE_SCRIPT_ARABIC, HB_SCRIPT_ARABIC,  NC_("Script", "Arabic") },
+  { G_UNICODE_SCRIPT_ARMENIAN, HB_SCRIPT_ARMENIAN,  NC_("Script", "Armenian") },
+  { G_UNICODE_SCRIPT_BENGALI, HB_SCRIPT_BENGALI,  NC_("Script", "Bengali") },
+  { G_UNICODE_SCRIPT_BOPOMOFO, HB_SCRIPT_BOPOMOFO,  NC_("Script", "Bopomofo") },
+  { G_UNICODE_SCRIPT_CHEROKEE, HB_SCRIPT_CHEROKEE,  NC_("Script", "Cherokee") },
+  { G_UNICODE_SCRIPT_COPTIC, HB_SCRIPT_COPTIC,  NC_("Script", "Coptic") },
+  { G_UNICODE_SCRIPT_CYRILLIC, HB_SCRIPT_CYRILLIC,  NC_("Script", "Cyrillic") },
+  { G_UNICODE_SCRIPT_DESERET, HB_SCRIPT_DESERET,  NC_("Script", "Deseret") },
+  { G_UNICODE_SCRIPT_DEVANAGARI, HB_SCRIPT_DEVANAGARI,  NC_("Script", "Devanagari") },
+  { G_UNICODE_SCRIPT_ETHIOPIC, HB_SCRIPT_ETHIOPIC,  NC_("Script", "Ethiopic") },
+  { G_UNICODE_SCRIPT_GEORGIAN, HB_SCRIPT_GEORGIAN,  NC_("Script", "Georgian") },
+  { G_UNICODE_SCRIPT_GOTHIC, HB_SCRIPT_GOTHIC,  NC_("Script", "Gothic") },
+  { G_UNICODE_SCRIPT_GREEK, HB_SCRIPT_GREEK,  NC_("Script", "Greek") },
+  { G_UNICODE_SCRIPT_GUJARATI, HB_SCRIPT_GUJARATI,  NC_("Script", "Gujarati") },
+  { G_UNICODE_SCRIPT_GURMUKHI, HB_SCRIPT_GURMUKHI,  NC_("Script", "Gurmukhi") },
+  { G_UNICODE_SCRIPT_HAN, HB_SCRIPT_HAN,  NC_("Script", "Han") },
+  { G_UNICODE_SCRIPT_HANGUL, HB_SCRIPT_HANGUL,  NC_("Script", "Hangul") },
+  { G_UNICODE_SCRIPT_HEBREW, HB_SCRIPT_HEBREW,  NC_("Script", "Hebrew") },
+  { G_UNICODE_SCRIPT_HIRAGANA, HB_SCRIPT_HIRAGANA,  NC_("Script", "Hiragana") },
+  { G_UNICODE_SCRIPT_KANNADA, HB_SCRIPT_KANNADA,  NC_("Script", "Kannada") },
+  { G_UNICODE_SCRIPT_KATAKANA, HB_SCRIPT_KATAKANA,  NC_("Script", "Katakana") },
+  { G_UNICODE_SCRIPT_KHMER, HB_SCRIPT_KHMER,  NC_("Script", "Khmer") },
+  { G_UNICODE_SCRIPT_LAO, HB_SCRIPT_LAO,  NC_("Script", "Lao") },
+  { G_UNICODE_SCRIPT_LATIN, HB_SCRIPT_LATIN,  NC_("Script", "Latin") },
+  { G_UNICODE_SCRIPT_MALAYALAM, HB_SCRIPT_MALAYALAM,  NC_("Script", "Malayalam") },
+  { G_UNICODE_SCRIPT_MONGOLIAN, HB_SCRIPT_MONGOLIAN,  NC_("Script", "Mongolian") },
+  { G_UNICODE_SCRIPT_MYANMAR, HB_SCRIPT_MYANMAR,  NC_("Script", "Myanmar") },
+  { G_UNICODE_SCRIPT_OGHAM, HB_SCRIPT_OGHAM,  NC_("Script", "Ogham") },
+  { G_UNICODE_SCRIPT_OLD_ITALIC, HB_SCRIPT_OLD_ITALIC,  NC_("Script", "Old Italic") },
+  { G_UNICODE_SCRIPT_ORIYA, HB_SCRIPT_ORIYA,  NC_("Script", "Oriya") },
+  { G_UNICODE_SCRIPT_RUNIC, HB_SCRIPT_RUNIC,  NC_("Script", "Runic") },
+  { G_UNICODE_SCRIPT_SINHALA, HB_SCRIPT_SINHALA,  NC_("Script", "Sinhala") },
+  { G_UNICODE_SCRIPT_SYRIAC, HB_SCRIPT_SYRIAC,  NC_("Script", "Syriac") },
+  { G_UNICODE_SCRIPT_TAMIL, HB_SCRIPT_TAMIL,  NC_("Script", "Tamil") },
+  { G_UNICODE_SCRIPT_TELUGU, HB_SCRIPT_TELUGU,  NC_("Script", "Telugu") },
+  { G_UNICODE_SCRIPT_THAANA, HB_SCRIPT_THAANA,  NC_("Script", "Thaana") },
+  { G_UNICODE_SCRIPT_THAI, HB_SCRIPT_THAI,  NC_("Script", "Thai") },
+  { G_UNICODE_SCRIPT_TIBETAN, HB_SCRIPT_TIBETAN,  NC_("Script", "Tibetan") },
+  { G_UNICODE_SCRIPT_CANADIAN_ABORIGINAL, HB_SCRIPT_CANADIAN_ABORIGINAL,  NC_("Script", "Canadian Aboriginal") },
+  { G_UNICODE_SCRIPT_YI, HB_SCRIPT_YI,  NC_("Script", "Yi") },
+  { G_UNICODE_SCRIPT_TAGALOG, HB_SCRIPT_TAGALOG,  NC_("Script", "Tagalog") },
+  { G_UNICODE_SCRIPT_HANUNOO, HB_SCRIPT_HANUNOO,  NC_("Script", "Hanunoo") },
+  { G_UNICODE_SCRIPT_BUHID, HB_SCRIPT_BUHID,  NC_("Script", "Buhid") },
+  { G_UNICODE_SCRIPT_TAGBANWA, HB_SCRIPT_TAGBANWA,  NC_("Script", "Tagbanwa") },
+  { G_UNICODE_SCRIPT_BRAILLE, HB_SCRIPT_BRAILLE,  NC_("Script", "Braille") },
+  { G_UNICODE_SCRIPT_CYPRIOT, HB_SCRIPT_CYPRIOT,  NC_("Script", "Cypriot") },
+  { G_UNICODE_SCRIPT_LIMBU, HB_SCRIPT_LIMBU,  NC_("Script", "Limbu") },
+  { G_UNICODE_SCRIPT_OSMANYA, HB_SCRIPT_OSMANYA,  NC_("Script", "Osmanya") },
+  { G_UNICODE_SCRIPT_SHAVIAN, HB_SCRIPT_SHAVIAN,  NC_("Script", "Shavian") },
+  { G_UNICODE_SCRIPT_LINEAR_B, HB_SCRIPT_LINEAR_B,  NC_("Script", "Linear B") },
+  { G_UNICODE_SCRIPT_TAI_LE, HB_SCRIPT_TAI_LE,  NC_("Script", "Tai Le") },
+  { G_UNICODE_SCRIPT_UGARITIC, HB_SCRIPT_UGARITIC,  NC_("Script", "Ugaritic") },
+  { G_UNICODE_SCRIPT_NEW_TAI_LUE, HB_SCRIPT_NEW_TAI_LUE,  NC_("Script", "New Tai Lue") },
+  { G_UNICODE_SCRIPT_BUGINESE, HB_SCRIPT_BUGINESE,  NC_("Script", "Buginese") },
+  { G_UNICODE_SCRIPT_GLAGOLITIC, HB_SCRIPT_GLAGOLITIC,  NC_("Script", "Glagolitic") },
+  { G_UNICODE_SCRIPT_TIFINAGH, HB_SCRIPT_TIFINAGH,  NC_("Script", "Tifinagh") },
+  { G_UNICODE_SCRIPT_SYLOTI_NAGRI, HB_SCRIPT_SYLOTI_NAGRI,  NC_("Script", "Syloti Nagri") },
+  { G_UNICODE_SCRIPT_OLD_PERSIAN, HB_SCRIPT_OLD_PERSIAN,  NC_("Script", "Old Persian") },
+  { G_UNICODE_SCRIPT_KHAROSHTHI, HB_SCRIPT_KHAROSHTHI,  NC_("Script", "Kharoshthi") },
+  { G_UNICODE_SCRIPT_UNKNOWN, HB_SCRIPT_UNKNOWN,  NC_("Script", "Unknown") },
+  { G_UNICODE_SCRIPT_BALINESE, HB_SCRIPT_BALINESE,  NC_("Script", "Balinese") },
+  { G_UNICODE_SCRIPT_CUNEIFORM, HB_SCRIPT_CUNEIFORM,  NC_("Script", "Cuneiform") },
+  { G_UNICODE_SCRIPT_PHOENICIAN, HB_SCRIPT_PHOENICIAN,  NC_("Script", "Phoenician") },
+  { G_UNICODE_SCRIPT_PHAGS_PA, HB_SCRIPT_PHAGS_PA,  NC_("Script", "Phags-pa") },
+  { G_UNICODE_SCRIPT_NKO, HB_SCRIPT_NKO,  NC_("Script", "N'Ko") },
+  { G_UNICODE_SCRIPT_KAYAH_LI, HB_SCRIPT_KAYAH_LI,  NC_("Script", "Kayah Li") },
+  { G_UNICODE_SCRIPT_LEPCHA, HB_SCRIPT_LEPCHA,  NC_("Script", "Lepcha") },
+  { G_UNICODE_SCRIPT_REJANG, HB_SCRIPT_REJANG,  NC_("Script", "Rejang") },
+  { G_UNICODE_SCRIPT_SUNDANESE, HB_SCRIPT_SUNDANESE,  NC_("Script", "Sundanese") },
+  { G_UNICODE_SCRIPT_SAURASHTRA, HB_SCRIPT_SAURASHTRA,  NC_("Script", "Saurashtra") },
+  { G_UNICODE_SCRIPT_CHAM, HB_SCRIPT_CHAM,  NC_("Script", "Cham") },
+  { G_UNICODE_SCRIPT_OL_CHIKI, HB_SCRIPT_OL_CHIKI,  NC_("Script", "Ol Chiki") },
+  { G_UNICODE_SCRIPT_VAI, HB_SCRIPT_VAI,  NC_("Script", "Vai") },
+  { G_UNICODE_SCRIPT_CARIAN, HB_SCRIPT_CARIAN,  NC_("Script", "Carian") },
+  { G_UNICODE_SCRIPT_LYCIAN, HB_SCRIPT_LYCIAN,  NC_("Script", "Lycian") },
+  { G_UNICODE_SCRIPT_LYDIAN, HB_SCRIPT_LYDIAN,  NC_("Script", "Lydian") },
+  { G_UNICODE_SCRIPT_AVESTAN, HB_SCRIPT_AVESTAN,  NC_("Script", "Avestan") },
+  { G_UNICODE_SCRIPT_BAMUM, HB_SCRIPT_BAMUM,  NC_("Script", "Bamum") },
+  { G_UNICODE_SCRIPT_EGYPTIAN_HIEROGLYPHS, HB_SCRIPT_EGYPTIAN_HIEROGLYPHS,  NC_("Script", "Egyptian Hieroglpyhs") },
+  { G_UNICODE_SCRIPT_IMPERIAL_ARAMAIC, HB_SCRIPT_IMPERIAL_ARAMAIC,  NC_("Script", "Imperial Aramaic") },
+  { G_UNICODE_SCRIPT_INSCRIPTIONAL_PAHLAVI, HB_SCRIPT_INSCRIPTIONAL_PAHLAVI,  NC_("Script", "Inscriptional Pahlavi") },
+  { G_UNICODE_SCRIPT_INSCRIPTIONAL_PARTHIAN, HB_SCRIPT_INSCRIPTIONAL_PARTHIAN,  NC_("Script", "Inscriptional Parthian") },
+  { G_UNICODE_SCRIPT_JAVANESE, HB_SCRIPT_JAVANESE,  NC_("Script", "Javanese") },
+  { G_UNICODE_SCRIPT_KAITHI, HB_SCRIPT_KAITHI,  NC_("Script", "Kaithi") },
+  { G_UNICODE_SCRIPT_LISU, HB_SCRIPT_LISU,  NC_("Script", "Lisu") },
+  { G_UNICODE_SCRIPT_MEETEI_MAYEK, HB_SCRIPT_MEETEI_MAYEK,  NC_("Script", "Meetei Mayek") },
+  { G_UNICODE_SCRIPT_OLD_SOUTH_ARABIAN, HB_SCRIPT_OLD_SOUTH_ARABIAN,  NC_("Script", "Old South Arabian") },
+  { G_UNICODE_SCRIPT_OLD_TURKIC, HB_SCRIPT_OLD_TURKIC,  NC_("Script", "Old Turkic") },
+  { G_UNICODE_SCRIPT_SAMARITAN, HB_SCRIPT_SAMARITAN,  NC_("Script", "Samaritan") },
+  { G_UNICODE_SCRIPT_TAI_THAM, HB_SCRIPT_TAI_THAM,  NC_("Script", "Tai Tham") },
+  { G_UNICODE_SCRIPT_TAI_VIET, HB_SCRIPT_TAI_VIET,  NC_("Script", "Tai Viet") },
+  { G_UNICODE_SCRIPT_BATAK, HB_SCRIPT_BATAK,  NC_("Script", "Batak") },
+  { G_UNICODE_SCRIPT_BRAHMI, HB_SCRIPT_BRAHMI,  NC_("Script", "Brahmi") },
+  { G_UNICODE_SCRIPT_MANDAIC, HB_SCRIPT_MANDAIC,  NC_("Script", "Mandaic") },
+  { G_UNICODE_SCRIPT_CHAKMA, HB_SCRIPT_CHAKMA,  NC_("Script", "Chakma") },
+  { G_UNICODE_SCRIPT_MEROITIC_CURSIVE, HB_SCRIPT_MEROITIC_CURSIVE,  NC_("Script", "Meroitic Cursive") },
+  { G_UNICODE_SCRIPT_MEROITIC_HIEROGLYPHS, HB_SCRIPT_MEROITIC_HIEROGLYPHS,  NC_("Script", "Meroitic Hieroglyphs") },
+  { G_UNICODE_SCRIPT_MIAO, HB_SCRIPT_MIAO,  NC_("Script", "Miao") },
+  { G_UNICODE_SCRIPT_SHARADA, HB_SCRIPT_SHARADA,  NC_("Script", "Sharada") },
+  { G_UNICODE_SCRIPT_SORA_SOMPENG, HB_SCRIPT_SORA_SOMPENG,  NC_("Script", "Sora Sompeng") },
+  { G_UNICODE_SCRIPT_TAKRI, HB_SCRIPT_TAKRI,  NC_("Script", "Takri") },
+  { G_UNICODE_SCRIPT_BASSA_VAH, HB_SCRIPT_BASSA_VAH,  NC_("Script", "Bassa") },
+  { G_UNICODE_SCRIPT_CAUCASIAN_ALBANIAN, HB_SCRIPT_CAUCASIAN_ALBANIAN,  NC_("Script", "Caucasian Albanian") },
+  { G_UNICODE_SCRIPT_DUPLOYAN, HB_SCRIPT_DUPLOYAN,  NC_("Script", "Duployan") },
+  { G_UNICODE_SCRIPT_ELBASAN, HB_SCRIPT_ELBASAN,  NC_("Script", "Elbasan") },
+  { G_UNICODE_SCRIPT_GRANTHA, HB_SCRIPT_GRANTHA,  NC_("Script", "Grantha") },
+  { G_UNICODE_SCRIPT_KHOJKI, HB_SCRIPT_KHOJKI,  NC_("Script", "Kjohki") },
+  { G_UNICODE_SCRIPT_KHUDAWADI, HB_SCRIPT_KHUDAWADI,  NC_("Script", "Khudawadi, Sindhi") },
+  { G_UNICODE_SCRIPT_LINEAR_A, HB_SCRIPT_LINEAR_A,  NC_("Script", "Linear A") },
+  { G_UNICODE_SCRIPT_MAHAJANI, HB_SCRIPT_MAHAJANI,  NC_("Script", "Mahajani") },
+  { G_UNICODE_SCRIPT_MANICHAEAN, HB_SCRIPT_MANICHAEAN,  NC_("Script", "Manichaean") },
+  { G_UNICODE_SCRIPT_MENDE_KIKAKUI, HB_SCRIPT_MENDE_KIKAKUI,  NC_("Script", "Mende Kikakui") },
+  { G_UNICODE_SCRIPT_MODI, HB_SCRIPT_MODI,  NC_("Script", "Modi") },
+  { G_UNICODE_SCRIPT_MRO, HB_SCRIPT_MRO,  NC_("Script", "Mro") },
+  { G_UNICODE_SCRIPT_NABATAEAN, HB_SCRIPT_NABATAEAN,  NC_("Script", "Nabataean") },
+  { G_UNICODE_SCRIPT_OLD_NORTH_ARABIAN, HB_SCRIPT_OLD_NORTH_ARABIAN,  NC_("Script", "Old North Arabian") },
+  { G_UNICODE_SCRIPT_OLD_PERMIC, HB_SCRIPT_OLD_PERMIC,  NC_("Script", "Old Permic") },
+  { G_UNICODE_SCRIPT_PAHAWH_HMONG, HB_SCRIPT_PAHAWH_HMONG,  NC_("Script", "Pahawh Hmong") },
+  { G_UNICODE_SCRIPT_PALMYRENE, HB_SCRIPT_PALMYRENE,  NC_("Script", "Palmyrene") },
+  { G_UNICODE_SCRIPT_PAU_CIN_HAU, HB_SCRIPT_PAU_CIN_HAU,  NC_("Script", "Pau Cin Hau") },
+  { G_UNICODE_SCRIPT_PSALTER_PAHLAVI, HB_SCRIPT_PSALTER_PAHLAVI,  NC_("Script", "Psalter Pahlavi") },
+  { G_UNICODE_SCRIPT_SIDDHAM, HB_SCRIPT_SIDDHAM,  NC_("Script", "Siddham") },
+  { G_UNICODE_SCRIPT_TIRHUTA, HB_SCRIPT_TIRHUTA,  NC_("Script", "Tirhuta") },
+  { G_UNICODE_SCRIPT_WARANG_CITI, HB_SCRIPT_WARANG_CITI,  NC_("Script", "Warang Citi") },
+  { G_UNICODE_SCRIPT_AHOM, HB_SCRIPT_AHOM,  NC_("Script", "Ahom") },
+  { G_UNICODE_SCRIPT_ANATOLIAN_HIEROGLYPHS, HB_SCRIPT_ANATOLIAN_HIEROGLYPHS,  NC_("Script", "Anatolian Hieroglyphs") },
+  { G_UNICODE_SCRIPT_HATRAN, HB_SCRIPT_HATRAN,  NC_("Script", "Hatran") },
+  { G_UNICODE_SCRIPT_MULTANI, HB_SCRIPT_MULTANI,  NC_("Script", "Multani") },
+  { G_UNICODE_SCRIPT_OLD_HUNGARIAN, HB_SCRIPT_OLD_HUNGARIAN,  NC_("Script", "Old Hungarian") },
+  { G_UNICODE_SCRIPT_SIGNWRITING, HB_SCRIPT_SIGNWRITING,  NC_("Script", "Signwriting") },
+  { G_UNICODE_SCRIPT_ADLAM, HB_SCRIPT_ADLAM,  NC_("Script", "Adlam") },
+  { G_UNICODE_SCRIPT_BHAIKSUKI, HB_SCRIPT_BHAIKSUKI,  NC_("Script", "Bhaiksuki") },
+  { G_UNICODE_SCRIPT_MARCHEN, HB_SCRIPT_MARCHEN,  NC_("Script", "Marchen") },
+  { G_UNICODE_SCRIPT_NEWA, HB_SCRIPT_NEWA,  NC_("Script", "Newa") },
+  { G_UNICODE_SCRIPT_OSAGE, HB_SCRIPT_OSAGE,  NC_("Script", "Osage") },
+  { G_UNICODE_SCRIPT_TANGUT, HB_SCRIPT_TANGUT,  NC_("Script", "Tangut") },
+  { G_UNICODE_SCRIPT_MASARAM_GONDI, HB_SCRIPT_INVALID,  NC_("Script", "Masaram Gondi") },
+  { G_UNICODE_SCRIPT_NUSHU, HB_SCRIPT_INVALID,  NC_("Script", "Nushu") },
+  { G_UNICODE_SCRIPT_SOYOMBO, HB_SCRIPT_INVALID,  NC_("Script", "Soyombo") },
+  { G_UNICODE_SCRIPT_ZANABAZAR_SQUARE, HB_SCRIPT_INVALID,  NC_("Script", "Zanabazar Square") },
+};
+
+const char *
+get_script_name (GUnicodeScript script)
+{
+  int i;
+
+  for (i = 0; i < G_N_ELEMENTS (scripts); i++)
+    {
+      if (scripts[i].script == script)
+        return g_dpgettext2 (GETTEXT_PACKAGE, "Script", scripts[i].name);
+    }
+
+  return NULL;
+}
+
+const char *
+get_script_name_for_tag (guint32 tag)
+{
+  int i;
+
+  for (i = 0; i < G_N_ELEMENTS (scripts); i++)
+    {
+      if (scripts[i].hb_script == hb_script_from_iso15924_tag (tag))
+        return g_dpgettext2 (GETTEXT_PACKAGE, "Script", scripts[i].name);
+    }
+
+  return NULL;
+}
--- a/demos/gtk-demo/script-names.h
+++ b/demos/gtk-demo/script-names.h
@@ -0,0 +1,13 @@
+#ifndef SCRIPT_NAMES_H
+#define SCRIPT_NAMES_H
+
+#include <glib.h>
+
+G_BEGIN_DECLS
+
+const char * get_script_name (GUnicodeScript script);
+const char * get_script_name_for_tag (guint32 tag);
+
+G_END_DECLS
+
+#endif
--- a/demos/gtk-demo/search_entry2.c
+++ b/demos/gtk-demo/search_entry2.c
@@ -31,7 +31,10 @@ window_key_press_event_cb (GtkWidget    *widget,
 			   GdkEvent     *event,
 			   GtkSearchBar *bar)
 {
-  return gtk_search_bar_handle_event (bar, event);
+  if (gdk_event_get_event_type (event) == GDK_KEY_PRESS)
+    return gtk_search_bar_handle_event (bar, event);
+
+  return GDK_EVENT_PROPAGATE;
 }

 static void
@@ -99,8 +102,7 @@ do_search_entry2 (GtkWidget *do_widget)
      gtk_box_pack_start (GTK_BOX (vbox), searchbar);

      /* Hook the search bar to key presses */
-      g_signal_connect (window, "key-press-event",
-                        G_CALLBACK (window_key_press_event_cb), searchbar);
+      g_signal_connect (window, "event", G_CALLBACK (window_key_press_event_cb), searchbar);

      /* Help */
      label = gtk_label_new ("Start Typing to search");
--- a/demos/gtk-demo/shortcuts-boxes.ui
+++ b/demos/gtk-demo/shortcuts-boxes.ui
@@ -1,104 +1,79 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <!-- interface-requires gtk+ 3.17 -->
-
  <object class="GtkShortcutsWindow" id="shortcuts-boxes">
    <property name="modal">1</property>
-    
    <child>
      <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
        <property name="section-name">shortcuts</property>
        <property name="max-height">12</property>
-
        <!-- Overview shortcuts -->
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Overview</property>
            <property name="view">overview</property>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">F1</property>
                <property name="title" translatable="yes">Help</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Ctrl&gt;n</property>
                <property name="title" translatable="yes">Create a new box</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Ctrl&gt;f</property>
                <property name="title" translatable="yes">Search</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Ctrl&gt;k</property>
                <property name="title" translatable="yes">Keyboard shortcuts</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Ctrl&gt;q</property>
                <property name="title" translatable="yes">Close Window/Quit Boxes</property>
              </object>
            </child>
          </object>
        </child>
-
        <!-- Wizard and Properties shortcuts -->
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Box Creation and Properties</property>
            <property name="view">wizard</property>
-
            <!-- LTR -->
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="direction">ltr</property>
                <property name="accelerator">&lt;Alt&gt;Right</property>
                <property name="title" translatable="yes">Switch to the next page</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="direction">ltr</property>
                <property name="accelerator">&lt;Alt&gt;Left</property>
                <property name="title" translatable="yes">Switch to the previous page</property>
              </object>
            </child>
-
            <!-- RTL -->
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="direction">rtl</property>
                <property name="accelerator">&lt;Alt&gt;Left</property>
                <property name="title" translatable="yes">Switch to the next page</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="direction">rtl</property>
                <property name="accelerator">&lt;Alt&gt;Right</property>
                <property name="title" translatable="yes">Switch to the previous page</property>
@@ -106,62 +81,48 @@
            </child>
          </object>
        </child>
-
        <!-- Display shortcuts -->
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Box Display</property>
            <property name="view">display</property>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Control_L+Alt_L</property>
                <property name="title" translatable="yes">Grab/Ungrab keyboard</property>
              </object>
            </child>
-
            <!-- LTR -->
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="direction">ltr</property>
                <property name="accelerator">&lt;Alt&gt;Left</property>
                <property name="title" translatable="yes">Back to overview</property>
              </object>
            </child>
-
            <!-- RTL -->
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="direction">rtl</property>
                <property name="accelerator">&lt;Alt&gt;Right</property>
                <property name="title" translatable="yes">Back to overview</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Ctrl&gt;q</property>
                <property name="title" translatable="yes">Close window/Quit Boxes</property>
              </object>
            </child>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">F11</property>
                <property name="title" translatable="yes">Fullscreen/Restore from fullscreen</property>
              </object>
            </child>
          </object>
        </child>
-
      </object>
    </child>
  </object>
-
 </interface>
--- a/demos/gtk-demo/shortcuts-builder.ui
+++ b/demos/gtk-demo/shortcuts-builder.ui
@@ -1,49 +1,41 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <!-- interface-requires gtk+ 3.17 -->
-
  <object class="GtkShortcutsWindow" id="shortcuts-builder">
    <property name="modal">1</property>
    <child>
      <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
        <property name="section-name">editor</property>
        <property name="title" translatable="yes">Editor Shortcuts</property>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">General</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Global Search</property>
                <property name="accelerator">&lt;ctrl&gt;period</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Preferences</property>
                <property name="accelerator">&lt;ctrl&gt;comma</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Command Bar</property>
                <property name="accelerator">&lt;ctrl&gt;Return</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Terminal</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;t</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Keyboard Shortcuts</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;question</property>
              </object>
@@ -52,25 +44,21 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Panels</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Toggle left panel</property>
                <property name="accelerator">F9</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Toggle right panel</property>
                <property name="accelerator">&lt;shift&gt;F9</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Toggle bottom panel</property>
                <property name="accelerator">&lt;ctrl&gt;F9</property>
              </object>
@@ -79,18 +67,15 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Touchpad gestures</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-two-finger-swipe-right</property>
                <property name="title" translatable="yes">Switch to the next document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-two-finger-swipe-left</property>
                <property name="title" translatable="yes">Switch to the previous document</property>
              </object>
@@ -99,46 +84,39 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Files</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;n</property>
                <property name="title" translatable="yes">Create new document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;o</property>
                <property name="title" translatable="yes">Open a document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;s</property>
                <property name="title" translatable="yes">Save the document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;w</property>
                <property name="title" translatable="yes">Close the document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;alt&gt;Page_Down</property>
                <property name="title" translatable="yes">Switch to the next document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;alt&gt;Page_Up</property>
                <property name="title" translatable="yes">Switch to the previous document</property>
              </object>
@@ -147,32 +125,27 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Find and replace</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;f</property>
                <property name="title" translatable="yes">Find</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;g</property>
                <property name="title" translatable="yes">Find the next match</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;g</property>
                <property name="title" translatable="yes">Find the previous match</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;k</property>
                <property name="title" translatable="yes">Clear highlight</property>
              </object>
@@ -181,25 +154,21 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Copy and Paste</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;c</property>
                <property name="title" translatable="yes">Copy selected text to clipboard</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;x</property>
                <property name="title" translatable="yes">Cut selected text to clipboard</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;v</property>
                <property name="title" translatable="yes">Paste text from clipboard</property>
              </object>
@@ -208,18 +177,15 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Undo and Redo</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;z</property>
                <property name="title" translatable="yes">Undo previous command</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;z</property>
                <property name="title" translatable="yes">Redo previous command</property>
              </object>
@@ -228,46 +194,39 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Editing</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;a</property>
                <property name="title" translatable="yes">Increment number at cursor</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;x</property>
                <property name="title" translatable="yes">Decrement number at cursor</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;j</property>
                <property name="title" translatable="yes">Join selected lines</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;space</property>
                <property name="title" translatable="yes">Show completion window</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Insert</property>
                <property name="title" translatable="yes">Toggle overwrite</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;alt&gt;i</property>
                <property name="title" translatable="yes">Reindent line</property>
              </object>
@@ -276,74 +235,63 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Navigation</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;n</property>
                <property name="title" translatable="yes">Move to next error in file</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;p</property>
                <property name="title" translatable="yes">Move to previous error in file</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;shift&gt;&lt;alt&gt;Left</property>
                <property name="title" translatable="yes">Move to previous edit location</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;shift&gt;&lt;alt&gt;Right</property>
                <property name="title" translatable="yes">Move to next edit location</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;period</property>
                <property name="title" translatable="yes">Jump to definition of symbol</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;&lt;shift&gt;Up</property>
                <property name="title" translatable="yes">Move sectionport up within the file</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;&lt;shift&gt;Down</property>
                <property name="title" translatable="yes">Move sectionport down within the file</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;&lt;shift&gt;End</property>
                <property name="title" translatable="yes">Move sectionport to end of file</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;&lt;shift&gt;Home</property>
                <property name="title" translatable="yes">Move sectionport to beginning of file</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;percent</property>
                <property name="title" translatable="yes">Move to matching bracket</property>
              </object>
@@ -352,18 +300,15 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Selections</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;a</property>
                <property name="title" translatable="yes">Select all</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;backslash</property>
                <property name="title" translatable="yes">Unselect all</property>
              </object>
@@ -374,45 +319,38 @@
    </child>
    <child>
      <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
        <property name="max-height">16</property>
        <property name="section-name">terminal</property>
        <property name="title" translatable="yes">Terminal Shortcuts</property>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">General</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Global Search</property>
                <property name="accelerator">&lt;ctrl&gt;period</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Preferences</property>
                <property name="accelerator">&lt;ctrl&gt;comma</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Command Bar</property>
                <property name="accelerator">&lt;ctrl&gt;Return</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Terminal</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;t</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="title" translatable="yes">Keyboard Shortcuts</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;question</property>
              </object>
@@ -421,18 +359,15 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Copy and Paste</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;c</property>
                <property name="title" translatable="yes">Copy selected text to clipboard</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;v</property>
                <property name="title" translatable="yes">Paste text from clipboard</property>
              </object>
@@ -441,122 +376,98 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Switching</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;1...9</property>
                <property name="title" translatable="yes">Switch to n-th tab</property>
              </object>
            </child>
          </object>
        </child>
-
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
-            <property name="title" translatable="yes">'Special' combinations</property>
-
+            <property name="title" translatable="yes">&apos;Special&apos; combinations</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">t+t</property>
                <property name="title" translatable="yes">You want tea ?</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;shift&gt;&lt;ctrl&gt;</property>
                <property name="title" translatable="yes">Shift Control</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&amp;&lt;ctrl&gt;</property>
                <property name="title" translatable="yes">Control Control</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Control_L&amp;Control_R</property>
                <property name="title" translatable="yes">Left and right control</property>
              </object>
            </child>
-
          </object>
        </child>
-
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">All gestures</property>
-
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-pinch</property>
                <property name="title" translatable="yes">A stock pinch gesture</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-stretch</property>
                <property name="title" translatable="yes">A stock stretch gesture</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-rotate-clockwise</property>
                <property name="title" translatable="yes">A stock rotation gesture</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-rotate-counterclockwise</property>
                <property name="title" translatable="yes">A stock rotation gesture</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-two-finger-swipe-left</property>
                <property name="title" translatable="yes">A stock swipe gesture</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-two-finger-swipe-right</property>
                <property name="title" translatable="yes">A stock swipe gesture</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-swipe-left</property>
                <property name="title" translatable="yes">A stock swipe gesture</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-swipe-right</property>
                <property name="title" translatable="yes">A stock swipe gesture</property>
              </object>
            </child>
-
          </object>
        </child>
-
      </object>
    </child>
  </object>
-
 </interface>
--- a/demos/gtk-demo/shortcuts-clocks.ui
+++ b/demos/gtk-demo/shortcuts-clocks.ui
@@ -1,42 +1,35 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <!-- interface-requires gtk+ 3.17 -->
-
  <object class="GtkShortcutsWindow" id="shortcuts-clocks">
    <property name="modal">1</property>
    <child>
      <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
        <property name="section-name">shortcuts</property>
        <property name="max-height">10</property>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">General</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;Page_Down</property>
                <property name="title" translatable="yes">Go to the next section</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;Page_Up</property>
                <property name="title" translatable="yes">Go to the previous section</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;Q</property>
                <property name="title" translatable="yes">Quit</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;Right</property>
                <property name="direction">ltr</property>
                <property name="title" translatable="yes">Forward</property>
@@ -44,7 +37,6 @@
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;Left</property>
                <property name="direction">ltr</property>
                <property name="title" translatable="yes">Back</property>
@@ -52,7 +44,6 @@
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;alt&gt;Left</property>
                <property name="direction">rtl</property>
                <property name="title" translatable="yes">Forward</property>
@@ -60,7 +51,6 @@
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;Right</property>
                <property name="direction">rtl</property>
                <property name="title" translatable="yes">Back</property>
@@ -70,19 +60,16 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="view">world</property>
            <property name="title" translatable="yes">World Clocks</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;N</property>
                <property name="title" translatable="yes">Add a world clock</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;S</property>
                <property name="title" translatable="yes">Select world clocks</property>
              </object>
@@ -91,19 +78,16 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="view">alarm</property>
            <property name="title" translatable="yes">Alarm</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;N</property>
                <property name="title" translatable="yes">Add an alarm</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;S</property>
                <property name="title" translatable="yes">Select alarms</property>
              </object>
@@ -112,26 +96,22 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="view">stopwatch</property>
            <property name="title" translatable="yes">Stopwatch</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Return space</property>
                <property name="title" translatable="yes">Start / Stop / Continue</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">L</property>
                <property name="title" translatable="yes">Lap</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Delete</property>
                <property name="title" translatable="yes">Reset</property>
              </object>
@@ -140,19 +120,16 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="view">timer</property>
            <property name="title" translatable="yes">Timer</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Return space</property>
                <property name="title" translatable="yes">Start / Stop / Pause</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Delete</property>
                <property name="title" translatable="yes">Reset</property>
              </object>
@@ -162,5 +139,4 @@
      </object>
    </child>
  </object>
-
 </interface>
--- a/demos/gtk-demo/shortcuts-gedit.ui
+++ b/demos/gtk-demo/shortcuts-gedit.ui
@@ -1,28 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <!-- interface-requires gtk+ 3.17 -->
-
  <object class="GtkShortcutsWindow" id="shortcuts-gedit">
    <property name="modal">1</property>
    <child>
      <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
        <property name="section-name">shortcuts</property>
        <property name="max-height">12</property>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Touchpad gestures</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-two-finger-swipe-right</property>
                <property name="title" translatable="yes">Switch to the next document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="shortcut-type">gesture-two-finger-swipe-left</property>
                <property name="title" translatable="yes">Switch to the previous document</property>
              </object>
@@ -31,46 +26,39 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Documents</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;N</property>
                <property name="title" translatable="yes">Create new document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;O</property>
                <property name="title" translatable="yes">Open a document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;S</property>
                <property name="title" translatable="yes">Save the document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;W</property>
                <property name="title" translatable="yes">Close the document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;Alt&gt;Page_Down</property>
                <property name="title" translatable="yes">Switch to the next document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;Alt&gt;Page_Up</property>
                <property name="title" translatable="yes">Switch to the previous document</property>
              </object>
@@ -79,46 +67,39 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Find and Replace</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;F</property>
                <property name="title" translatable="yes">Find</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;G</property>
                <property name="title" translatable="yes">Find the next match</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;Shift&gt;G</property>
                <property name="title" translatable="yes">Find the previous match</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;H</property>
                <property name="title" translatable="yes">Find and Replace</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;&lt;Shift&gt;K</property>
                <property name="title" translatable="yes">Clear highlight</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;I</property>
                <property name="title" translatable="yes">Go to line</property>
              </object>
@@ -127,11 +108,9 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Tools</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;shift&gt;F7</property>
                <property name="title" translatable="yes">Check spelling</property>
              </object>
@@ -140,25 +119,21 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title" translatable="yes">Miscellaneous</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">F11</property>
                <property name="title" translatable="yes">Fullscreen on / off</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;ctrl&gt;P</property>
                <property name="title" translatable="yes">Print the document</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Insert</property>
                <property name="title" translatable="yes">Toggle insert / overwrite</property>
              </object>
@@ -168,5 +143,4 @@
      </object>
    </child>
  </object>
-
 </interface>
--- a/demos/gtk-demo/shortcuts.ui
+++ b/demos/gtk-demo/shortcuts.ui
@@ -1,60 +1,51 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <!-- interface-requires gtk+ 3.17 -->
-
  <object class="GtkWindow" id="window1">
    <property name="title" translatable="yes">Shortcuts</property>
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <property name="orientation">vertical</property>
        <property name="margin">50</property>
        <property name="spacing">10</property>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Builder</property>
            <signal name="clicked" handler="builder_shortcuts" swapped="1" object="window1"/>
          </object>
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">GEdit</property>
            <signal name="clicked" handler="gedit_shortcuts" swapped="1" object="window1"/>
          </object>
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Clocks - All</property>
            <signal name="clicked" handler="clocks_shortcuts" swapped="1" object="window1"/>
          </object>
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Clocks - Stopwatch</property>
            <signal name="clicked" handler="clocks_shortcuts_stopwatch" swapped="1" object="window1"/>
          </object>
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Boxes</property>
            <signal name="clicked" handler="boxes_shortcuts" swapped="1" object="window1"/>
          </object>
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Boxes - Wizard</property>
            <signal name="clicked" handler="boxes_shortcuts_wizard" swapped="1" object="window1"/>
          </object>
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Boxes - Display</property>
            <signal name="clicked" handler="boxes_shortcuts_display" swapped="1" object="window1"/>
          </object>
--- a/demos/gtk-demo/spinbutton.ui
+++ b/demos/gtk-demo/spinbutton.ui
@@ -3,189 +3,176 @@
  <object class="GtkAdjustment" id="basic_adjustment">
    <property name="lower">-10000</property>
    <property name="upper">10000</property>
-    <property name="step_increment">0.5</property>
-    <property name="page_increment">100</property>
+    <property name="step-increment">0.5</property>
+    <property name="page-increment">100</property>
  </object>
  <object class="GtkAdjustment" id="hex_adjustment">
    <property name="upper">255</property>
-    <property name="step_increment">1</property>
-    <property name="page_increment">16</property>
+    <property name="step-increment">1</property>
+    <property name="page-increment">16</property>
  </object>
  <object class="GtkAdjustment" id="time_adjustment">
    <property name="upper">1410</property>
-    <property name="step_increment">30</property>
-    <property name="page_increment">60</property>
+    <property name="step-increment">30</property>
+    <property name="page-increment">60</property>
  </object>
  <object class="GtkAdjustment" id="month_adjustment">
    <property name="lower">1</property>
    <property name="upper">12</property>
    <property name="value">1</property>
-    <property name="step_increment">1</property>
-    <property name="page_increment">5</property>
+    <property name="step-increment">1</property>
+    <property name="page-increment">5</property>
  </object>
  <object class="GtkWindow" id="window">
    <property name="title" translatable="yes">Spin Button</property>
    <child>
      <object class="GtkGrid">
-        <property name="visible">1</property>
        <property name="margin">20</property>
        <property name="row-spacing">10</property>
        <property name="column-spacing">10</property>
        <child>
          <object class="GtkLabel">
-            <property name="visible">1</property>
            <property name="label">_Numeric</property>
-            <property name="use_underline">1</property>
-            <property name="mnemonic_widget">basic_spin</property>
+            <property name="use-underline">1</property>
+            <property name="mnemonic-widget">basic_spin</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkSpinButton" id="basic_spin">
-            <property name="visible">1</property>
            <property name="halign">start</property>
-            <property name="width_chars">5</property>
+            <property name="width-chars">5</property>
            <property name="adjustment">basic_adjustment</property>
-            <property name="climb_rate">1</property>
+            <property name="climb-rate">1</property>
            <property name="digits">2</property>
            <property name="numeric">1</property>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="basic_label">
-            <property name="visible">1</property>
-            <property name="width_chars">10</property>
+            <property name="width-chars">10</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">2</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">2</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel">
-            <property name="visible">1</property>
            <property name="label">_Hexadecimal</property>
-            <property name="use_underline">1</property>
-            <property name="mnemonic_widget">hex_spin</property>
+            <property name="use-underline">1</property>
+            <property name="mnemonic-widget">hex_spin</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkSpinButton" id="hex_spin">
-            <property name="visible">1</property>
            <property name="halign">start</property>
-            <property name="width_chars">4</property>
+            <property name="width-chars">4</property>
            <property name="adjustment">hex_adjustment</property>
            <signal name="input" handler="hex_spin_input"/>
            <signal name="output" handler="hex_spin_output"/>
            <property name="wrap">1</property>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="hex_label">
-            <property name="visible">1</property>
-            <property name="width_chars">10</property>
+            <property name="width-chars">10</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">2</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">2</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel">
-            <property name="visible">1</property>
            <property name="label">_Time</property>
-            <property name="use_underline">1</property>
-            <property name="mnemonic_widget">time_spin</property>
+            <property name="use-underline">1</property>
+            <property name="mnemonic-widget">time_spin</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">2</property>
          </packing>
        </child>
        <child>
          <object class="GtkSpinButton" id="time_spin">
-            <property name="visible">1</property>
            <property name="halign">start</property>
-            <property name="width_chars">5</property>
+            <property name="width-chars">5</property>
            <property name="adjustment">time_adjustment</property>
            <signal name="input" handler="time_spin_input"/>
            <signal name="output" handler="time_spin_output"/>
            <property name="wrap">1</property>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">2</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="time_label">
-            <property name="visible">1</property>
-            <property name="width_chars">10</property>
+            <property name="width-chars">10</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">2</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">2</property>
+            <property name="top-attach">2</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel">
-            <property name="visible">1</property>
            <property name="label">_Month</property>
-            <property name="use_underline">1</property>
-            <property name="mnemonic_widget">month_spin</property>
+            <property name="use-underline">1</property>
+            <property name="mnemonic-widget">month_spin</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">3</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">3</property>
          </packing>
        </child>
        <child>
          <object class="GtkSpinButton" id="month_spin">
-            <property name="visible">1</property>
            <property name="halign">start</property>
-            <property name="width_chars">9</property>
+            <property name="width-chars">9</property>
            <signal name="input" handler="month_spin_input"/>
            <signal name="output" handler="month_spin_output"/>
            <property name="adjustment">month_adjustment</property>
            <property name="wrap">1</property>
-            <property name="update_policy">if-valid</property>
+            <property name="update-policy">if-valid</property>
          </object>
          <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">3</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">3</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="month_label">
-            <property name="visible">1</property>
-            <property name="width_chars">10</property>
+            <property name="width-chars">10</property>
            <property name="xalign">1</property>
          </object>
          <packing>
-            <property name="left_attach">2</property>
-            <property name="top_attach">3</property>
+            <property name="left-attach">2</property>
+            <property name="top-attach">3</property>
          </packing>
        </child>
      </object>
--- a/demos/gtk-demo/stack.ui
+++ b/demos/gtk-demo/stack.ui
@@ -5,26 +5,22 @@
    <property name="title" translatable="yes">Stack</property>
    <child>
      <object class="GtkGrid">
-        <property name="visible">1</property>
        <child>
          <object class="GtkStackSwitcher">
-            <property name="visible">1</property>
            <property name="stack">stack</property>
            <property name="halign">center</property>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkStack" id="stack">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+            <property name="can-focus">1</property>
            <property name="transition-type">crossfade</property>
            <child>
              <object class="GtkImage">
-                <property name="visible">1</property>
                <property name="margin-top">20</property>
                <property name="margin-bottom">20</property>
                <property name="icon-name">gtk3-demo</property>
@@ -37,9 +33,7 @@
            <child>
              <object class="GtkCheckButton">
                <property name="label" translatable="yes">Page 2</property>
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="draw_indicator">1</property>
+                <property name="can-focus">1</property>
                <property name="halign">center</property>
                <property name="valign">center</property>
              </object>
@@ -50,7 +44,6 @@
            </child>
            <child>
              <object class="GtkSpinner">
-                <property name="visible">1</property>
                <property name="halign">center</property>
                <property name="valign">center</property>
                <property name="active">1</property>
@@ -62,8 +55,8 @@
            </child>
          </object>
          <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">1</property>
          </packing>
        </child>
      </object>
--- a/demos/gtk-demo/theming.ui
+++ b/demos/gtk-demo/theming.ui
@@ -5,7 +5,6 @@
    <property name="orientation">vertical</property>
    <child>
      <object class="GtkToolbar">
-        <property name="visible">1</property>
        <property name="hexpand">1</property>
        <property name="show-arrow">0</property>
        <style>
@@ -13,11 +12,10 @@
        </style>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Normal</property>
-            <property name="use_underline">1</property>
-            <property name="is_important">1</property>
-            <property name="icon_name">edit-find</property>
+            <property name="use-underline">1</property>
+            <property name="is-important">1</property>
+            <property name="icon-name">edit-find</property>
          </object>
          <packing>
            <property name="homogeneous">1</property>
@@ -25,11 +23,10 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Active</property>
-            <property name="use_underline">1</property>
-            <property name="is_important">1</property>
-            <property name="icon_name">edit-find</property>
+            <property name="use-underline">1</property>
+            <property name="is-important">1</property>
+            <property name="icon-name">edit-find</property>
            <property name="active">1</property>
          </object>
          <packing>
@@ -38,12 +35,11 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="sensitive">0</property>
            <property name="label" translatable="yes">Insensitive</property>
-            <property name="use_underline">1</property>
-            <property name="is_important">1</property>
-            <property name="icon_name">edit-find</property>
+            <property name="use-underline">1</property>
+            <property name="is-important">1</property>
+            <property name="icon-name">edit-find</property>
          </object>
          <packing>
            <property name="homogeneous">1</property>
@@ -51,11 +47,10 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Raised</property>
-            <property name="use_underline">1</property>
-            <property name="is_important">1</property>
-            <property name="icon_name">edit-find</property>
+            <property name="use-underline">1</property>
+            <property name="is-important">1</property>
+            <property name="icon-name">edit-find</property>
            <style>
              <class name="raised"/>
            </style>
@@ -66,11 +61,10 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Raised Active</property>
-            <property name="use_underline">1</property>
-            <property name="is_important">1</property>
-            <property name="icon_name">edit-find</property>
+            <property name="use-underline">1</property>
+            <property name="is-important">1</property>
+            <property name="icon-name">edit-find</property>
            <property name="active">1</property>
            <style>
              <class name="raised"/>
@@ -82,12 +76,11 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="sensitive">0</property>
            <property name="label" translatable="yes">Insensitive Active</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">edit-find</property>
-            <property name="is_important">1</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">edit-find</property>
+            <property name="is-important">1</property>
            <property name="active">1</property>
          </object>
          <packing>
@@ -96,12 +89,10 @@
        </child>
        <child>
          <object class="GtkToolItem">
-            <property name="visible">1</property>
            <child>
              <object class="GtkEntry" id="entry1">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="invisible_char">•</property>
+                <property name="can-focus">1</property>
+                <property name="invisible-char">•</property>
                <property name="placeholder-text" translatable="yes">Search...</property>
                <property name="secondary-icon-name">edit-find-symbolic</property>
              </object>
@@ -110,11 +101,9 @@
        </child>
        <child>
          <object class="GtkToolItem">
-            <property name="visible">1</property>
            <child>
              <object class="GtkSwitch" id="switch1">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
+                <property name="can-focus">1</property>
              </object>
            </child>
          </object>
@@ -123,7 +112,6 @@
    </child>
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <property name="valign">center</property>
        <property name="halign">center</property>
        <style>
@@ -132,17 +120,15 @@
        <child>
          <object class="GtkButton">
            <property name="label" translatable="yes">Hi, I am a button</property>
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="receives_default">1</property>
+            <property name="can-focus">1</property>
+            <property name="receives-default">1</property>
          </object>
        </child>
        <child>
          <object class="GtkButton">
-            <property name="label" translatable="yes">And I'm another button</property>
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="receives_default">1</property>
+            <property name="label" translatable="yes">And I&apos;m another button</property>
+            <property name="can-focus">1</property>
+            <property name="receives-default">1</property>
          </object>
          <packing>
            <property name="position">1</property>
@@ -151,9 +137,8 @@
        <child>
          <object class="GtkButton">
            <property name="label" translatable="yes">This is a button party!</property>
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="receives_default">1</property>
+            <property name="can-focus">1</property>
+            <property name="receives-default">1</property>
          </object>
          <packing>
            <property name="position">2</property>
@@ -163,19 +148,16 @@
    </child>
    <child>
      <object class="GtkToolbar">
-        <property name="visible">1</property>
        <property name="hexpand">1</property>
-        <property name="icon_size">1</property>
        <property name="toolbar-style">icons</property>
        <style>
          <class name="inline-toolbar"/>
        </style>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Normal</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">list-add-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">list-add-symbolic</property>
          </object>
          <packing>
            <property name="homogeneous">1</property>
@@ -183,10 +165,9 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Normal</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">list-add-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">list-add-symbolic</property>
          </object>
          <packing>
            <property name="homogeneous">1</property>
@@ -195,8 +176,8 @@
        <child>
          <object class="GtkToggleToolButton">
            <property name="label" translatable="yes">Active</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">list-remove-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">list-remove-symbolic</property>
            <property name="active">1</property>
          </object>
          <packing>
@@ -205,10 +186,9 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="label" translatable="yes">Active</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">list-remove-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">list-remove-symbolic</property>
            <property name="active">1</property>
          </object>
          <packing>
@@ -217,11 +197,10 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="sensitive">0</property>
            <property name="label" translatable="yes">Insensitive</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">edit-find-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">edit-find-symbolic</property>
          </object>
          <packing>
            <property name="homogeneous">1</property>
@@ -229,11 +208,10 @@
        </child>
        <child>
          <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
            <property name="sensitive">0</property>
            <property name="label" translatable="yes">Insensitive Active</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">go-up-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">go-up-symbolic</property>
            <property name="active">1</property>
          </object>
          <packing>
@@ -244,12 +222,9 @@
    </child>
    <child>
      <object class="GtkBox">
-        <property name="visible">1</property>
        <property name="spacing">10</property>
-        <property name="orientation">horizontal</property>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Plain</property>
            <property name="halign">end</property>
            <property name="hexpand">1</property>
@@ -258,7 +233,6 @@
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Destructive</property>
            <style>
              <class name="destructive-action"/>
@@ -267,7 +241,6 @@
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">1</property>
            <property name="label">Suggested</property>
            <style>
              <class name="suggested-action"/>
--- a/demos/gtk-demo/toolpalette.c
+++ b/demos/gtk-demo/toolpalette.c
@@ -1,795 +0,0 @@
-/* Tool Palette
- *
- * A tool palette widget shows groups of toolbar items as a grid of icons
- * or a list of names.
- */
-
-#include <string.h>
-#include <gtk/gtk.h>
-
-static GtkWidget *window = NULL;
-
-static void load_icon_items (GtkToolPalette *palette);
-static void load_toggle_items (GtkToolPalette *palette);
-static void load_special_items (GtkToolPalette *palette);
-
-typedef struct _CanvasItem CanvasItem;
-
-struct _CanvasItem
-{
-  GdkPixbuf *pixbuf;
-  gdouble x, y;
-};
-
-static gboolean drag_data_requested_for_drop = FALSE;
-static CanvasItem *drop_item = NULL;
-static GList *canvas_items = NULL;
-
-/********************************/
-/* ====== Canvas drawing ====== */
-/********************************/
-
-static CanvasItem*
-canvas_item_new (GtkWidget     *widget,
-                 GtkToolButton *button,
-                 gdouble        x,
-                 gdouble        y)
-{
-  CanvasItem *item = NULL;
-  const gchar *icon_name;
-  GdkPixbuf *pixbuf;
-  GtkIconTheme *icon_theme;
-
-  icon_name = gtk_tool_button_get_icon_name (button);
-  icon_theme = gtk_icon_theme_get_for_display (gtk_widget_get_display (widget));
-  pixbuf = gtk_icon_theme_load_icon (icon_theme,
-                                     icon_name,
-                                     48,
-                                     GTK_ICON_LOOKUP_GENERIC_FALLBACK,
-                                     NULL);
-
-  if (pixbuf)
-    {
-      item = g_slice_new0 (CanvasItem);
-      item->pixbuf = pixbuf;
-      item->x = x;
-      item->y = y;
-    }
-
-  return item;
-}
-
-static void
-canvas_item_free (CanvasItem *item)
-{
-  g_object_unref (item->pixbuf);
-  g_slice_free (CanvasItem, item);
-}
-
-static void
-canvas_item_draw (const CanvasItem *item,
-                  cairo_t          *cr,
-                  gboolean          preview)
-{
-  gdouble cx = gdk_pixbuf_get_width (item->pixbuf);
-  gdouble cy = gdk_pixbuf_get_height (item->pixbuf);
-
-  gdk_cairo_set_source_pixbuf (cr,
-                               item->pixbuf,
-                               item->x - cx * 0.5,
-                               item->y - cy * 0.5);
-
-  if (preview)
-    cairo_paint_with_alpha (cr, 0.6);
-  else
-    cairo_paint (cr);
-}
-
-static gboolean
-canvas_draw (GtkWidget *widget,
-             cairo_t   *cr)
-{
-  GList *iter;
-
-  cairo_set_source_rgb (cr, 1, 1, 1);
-  cairo_paint (cr);
-
-  for (iter = canvas_items; iter; iter = iter->next)
-    canvas_item_draw (iter->data, cr, FALSE);
-
-  if (drop_item)
-    canvas_item_draw (drop_item, cr, TRUE);
-
-  return TRUE;
-}
-
-/*****************************/
-/* ====== Palette DnD ====== */
-/*****************************/
-
-static void
-palette_drop_item (GtkToolItem      *drag_item,
-                   GtkToolItemGroup *drop_group,
-                   gint              x,
-                   gint              y)
-{
-  GtkWidget *drag_group = gtk_widget_get_parent (GTK_WIDGET (drag_item));
-  GtkToolItem *drop_item = gtk_tool_item_group_get_drop_item (drop_group, x, y);
-  gint drop_position = -1;
-
-  if (drop_item)
-    drop_position = gtk_tool_item_group_get_item_position (GTK_TOOL_ITEM_GROUP (drop_group), drop_item);
-
-  if (GTK_TOOL_ITEM_GROUP (drag_group) != drop_group)
-    {
-      gboolean homogeneous, expand, fill, new_row;
-
-      g_object_ref (drag_item);
-      gtk_container_child_get (GTK_CONTAINER (drag_group), GTK_WIDGET (drag_item),
-                               "homogeneous", &homogeneous,
-                               "expand", &expand,
-                               "fill", &fill,
-                               "new-row", &new_row,
-                               NULL);
-      gtk_container_remove (GTK_CONTAINER (drag_group), GTK_WIDGET (drag_item));
-      gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (drop_group),
-                                  drag_item, drop_position);
-      gtk_container_child_set (GTK_CONTAINER (drop_group), GTK_WIDGET (drag_item),
-                               "homogeneous", homogeneous,
-                               "expand", expand,
-                               "fill", fill,
-                               "new-row", new_row,
-                               NULL);
-      g_object_unref (drag_item);
-    }
-  else
-    gtk_tool_item_group_set_item_position (GTK_TOOL_ITEM_GROUP (drop_group),
-                                           drag_item, drop_position);
-}
-
-static void
-palette_drop_group (GtkToolPalette   *palette,
-                    GtkToolItemGroup *drag_group,
-                    GtkToolItemGroup *drop_group)
-{
-  gint drop_position = -1;
-
-  if (drop_group)
-    drop_position = gtk_tool_palette_get_group_position (palette, drop_group);
-
-  gtk_tool_palette_set_group_position (palette, drag_group, drop_position);
-}
-
-static void
-palette_drag_data_received (GtkWidget        *widget,
-                            GdkDragContext   *context,
-                            gint              x,
-                            gint              y,
-                            GtkSelectionData *selection,
-                            guint             time,
-                            gpointer          data)
-{
-  GtkAllocation     allocation;
-  GtkToolItemGroup *drop_group = NULL;
-  GtkWidget        *drag_palette = gtk_drag_get_source_widget (context);
-  GtkWidget        *drag_item = NULL;
-
-  while (drag_palette && !GTK_IS_TOOL_PALETTE (drag_palette))
-    drag_palette = gtk_widget_get_parent (drag_palette);
-
-  if (drag_palette)
-    {
-      drag_item = gtk_tool_palette_get_drag_item (GTK_TOOL_PALETTE (drag_palette),
-                                                  selection);
-      drop_group = gtk_tool_palette_get_drop_group (GTK_TOOL_PALETTE (widget),
-                                                    x, y);
-    }
-
-  if (GTK_IS_TOOL_ITEM_GROUP (drag_item))
-    palette_drop_group (GTK_TOOL_PALETTE (drag_palette),
-                        GTK_TOOL_ITEM_GROUP (drag_item),
-                        drop_group);
-  else if (GTK_IS_TOOL_ITEM (drag_item) && drop_group)
-    {
-      gtk_widget_get_allocation (GTK_WIDGET (drop_group), &allocation);
-      palette_drop_item (GTK_TOOL_ITEM (drag_item),
-                         drop_group,
-                         x - allocation.x,
-                         y - allocation.y);
-    }
-}
-
-/********************************/
-/* ====== Passive Canvas ====== */
-/********************************/
-
-static void
-passive_canvas_drag_data_received (GtkWidget        *widget,
-                                   GdkDragContext   *context,
-                                   gint              x,
-                                   gint              y,
-                                   GtkSelectionData *selection,
-                                   guint             time,
-                                   gpointer          data)
-{
-  /* find the tool button, which is the source of this DnD operation */
-
-  GtkWidget *palette = gtk_drag_get_source_widget (context);
-  CanvasItem *canvas_item = NULL;
-  GtkWidget *tool_item = NULL;
-
-  while (palette && !GTK_IS_TOOL_PALETTE (palette))
-    palette = gtk_widget_get_parent (palette);
-
-  if (palette)
-    tool_item = gtk_tool_palette_get_drag_item (GTK_TOOL_PALETTE (palette),
-                                                selection);
-
-  g_assert (NULL == drop_item);
-
-  /* append a new canvas item when a tool button was found */
-
-  if (GTK_IS_TOOL_ITEM (tool_item))
-    canvas_item = canvas_item_new (widget, GTK_TOOL_BUTTON (tool_item), x, y);
-
-  if (canvas_item)
-    {
-      canvas_items = g_list_append (canvas_items, canvas_item);
-      gtk_widget_queue_draw (widget);
-    }
-}
-
-/************************************/
-/* ====== Interactive Canvas ====== */
-/************************************/
-
-static gboolean
-interactive_canvas_drag_motion (GtkWidget      *widget,
-                                GdkDragContext *context,
-                                gint            x,
-                                gint            y,
-                                guint           time,
-                                gpointer        data)
-{
-  if (drop_item)
-    {
-      /* already have a drop indicator - just update position */
-
-      drop_item->x = x;
-      drop_item->y = y;
-
-      gtk_widget_queue_draw (widget);
-      gdk_drag_status (context, GDK_ACTION_COPY, time);
-    }
-  else
-    {
-      /* request DnD data for creating a drop indicator */
-
-      GdkAtom target = gtk_drag_dest_find_target (widget, context, NULL);
-
-      if (!target)
-        return FALSE;
-
-      drag_data_requested_for_drop = FALSE;
-      gtk_drag_get_data (widget, context, target, time);
-    }
-
-  return TRUE;
-}
-
-static void
-interactive_canvas_drag_data_received (GtkWidget        *widget,
-                                       GdkDragContext   *context,
-                                       gint              x,
-                                       gint              y,
-                                       GtkSelectionData *selection,
-                                       guint             time,
-                                       gpointer          data)
-
-{
-  /* find the tool button which is the source of this DnD operation */
-
-  GtkWidget *palette = gtk_drag_get_source_widget (context);
-  GtkWidget *tool_item = NULL;
-  CanvasItem *item;
-
-  while (palette && !GTK_IS_TOOL_PALETTE (palette))
-    palette = gtk_widget_get_parent (palette);
-
-  if (palette)
-    tool_item = gtk_tool_palette_get_drag_item (GTK_TOOL_PALETTE (palette),
-                                                selection);
-
-  /* create a canvas item when a tool button was found */
-
-  g_assert (NULL == drop_item);
-
-  if (!GTK_IS_TOOL_ITEM (tool_item))
-    return;
-
-  if (drop_item)
-    {
-      canvas_item_free (drop_item);
-      drop_item = NULL;
-    }
-
-  item = canvas_item_new (widget, GTK_TOOL_BUTTON (tool_item), x, y);
-
-  /* Either create a new item or just create a preview item, 
-     depending on why the drag data was requested. */
-  if(drag_data_requested_for_drop)
-    {
-      canvas_items = g_list_append (canvas_items, item);
-      drop_item = NULL;
-
-      gtk_drag_finish (context, TRUE, time);
-    } else
-    {
-      drop_item = item;
-      gdk_drag_status (context, GDK_ACTION_COPY, time);
-    }
-
-  gtk_widget_queue_draw (widget);
-}
-
-static gboolean
-interactive_canvas_drag_drop (GtkWidget      *widget,
-                              GdkDragContext *context,
-                              gint            x,
-                              gint            y,
-                              guint           time,
-                              gpointer        data)
-{
-  GdkAtom target = gtk_drag_dest_find_target (widget, context, NULL);
-
-  if (!target)
-    return FALSE;
-
-  drag_data_requested_for_drop = TRUE;
-  gtk_drag_get_data (widget, context, target, time);
-
-  return FALSE;
-}
-
-static void
-interactive_canvas_drag_leave (gpointer data)
-{
-  if (drop_item)
-    {
-      GtkWidget *widget = GTK_WIDGET (data);
-
-      canvas_item_free (drop_item);
-      drop_item = NULL;
-
-      if (widget)
-        gtk_widget_queue_draw (widget);
-    }
-}
-
-static void
-on_combo_orientation_changed (GtkComboBox *combo_box,
-                              gpointer     user_data)
-{
-  GtkToolPalette *palette = GTK_TOOL_PALETTE (user_data);
-  GtkScrolledWindow *sw;
-  GtkTreeModel *model = gtk_combo_box_get_model (combo_box);
-  GtkTreeIter iter;
-  gint val = 0;
-
-  sw = GTK_SCROLLED_WINDOW (gtk_widget_get_parent (GTK_WIDGET (palette)));
-
-  if (!gtk_combo_box_get_active_iter (combo_box, &iter))
-    return;
-
-  gtk_tree_model_get (model, &iter, 1, &val, -1);
-
-  gtk_orientable_set_orientation (GTK_ORIENTABLE (palette), val);
-
-  if (val == GTK_ORIENTATION_HORIZONTAL)
-    gtk_scrolled_window_set_policy (sw, GTK_POLICY_AUTOMATIC, GTK_POLICY_NEVER);
-  else
-    gtk_scrolled_window_set_policy (sw, GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
-}
-
-static void
-on_combo_style_changed (GtkComboBox *combo_box,
-                        gpointer     user_data)
-{
-  GtkToolPalette *palette = GTK_TOOL_PALETTE (user_data);
-  GtkTreeModel *model = gtk_combo_box_get_model (combo_box);
-  GtkTreeIter iter;
-  gint val = 0;
-
-  if (!gtk_combo_box_get_active_iter (combo_box, &iter))
-    return;
-
-  gtk_tree_model_get (model, &iter, 1, &val, -1);
-
-  if (val == -1)
-    gtk_tool_palette_unset_style (palette);
-  else
-    gtk_tool_palette_set_style (palette, val);
-}
-
-GtkWidget *
-do_toolpalette (GtkWidget *do_widget)
-{
-  GtkWidget *box = NULL;
-  GtkWidget *hbox = NULL;
-  GtkWidget *combo_orientation = NULL;
-  GtkListStore *orientation_model = NULL;
-  GtkWidget *combo_style = NULL;
-  GtkListStore *style_model = NULL;
-  GtkCellRenderer *cell_renderer = NULL;
-  GtkTreeIter iter;
-  GtkWidget *palette = NULL;
-  GtkWidget *palette_scroller = NULL;
-  GtkWidget *notebook = NULL;
-  GtkWidget *contents = NULL;
-  GtkWidget *contents_scroller = NULL;
-
-  if (!window)
-    {
-      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
-      gtk_window_set_display (GTK_WINDOW (window),
-                              gtk_widget_get_display (do_widget));
-      gtk_window_set_title (GTK_WINDOW (window), "Tool Palette");
-      gtk_window_set_default_size (GTK_WINDOW (window), 200, 600);
-
-      g_signal_connect (window, "destroy",
-                        G_CALLBACK (gtk_widget_destroyed), &window);
-
-      /* Add widgets to control the ToolPalette appearance: */
-      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
-      g_object_set (box, "margin", 6, NULL);
-      gtk_container_add (GTK_CONTAINER (window), box);
-
-      /* Orientation combo box: */
-      orientation_model = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT);
-      gtk_list_store_append (orientation_model, &iter);
-      gtk_list_store_set (orientation_model, &iter,
-                          0, "Horizontal",
-                          1, GTK_ORIENTATION_HORIZONTAL,
-                          -1);
-      gtk_list_store_append (orientation_model, &iter);
-      gtk_list_store_set (orientation_model, &iter,
-                          0, "Vertical",
-                          1, GTK_ORIENTATION_VERTICAL,
-                          -1);
-
-      combo_orientation =
-        gtk_combo_box_new_with_model (GTK_TREE_MODEL (orientation_model));
-      cell_renderer = gtk_cell_renderer_text_new ();
-      gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo_orientation),
-                                  cell_renderer,
-                                  TRUE);
-      gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo_orientation),
-                                      cell_renderer,
-                                      "text", 0,
-                                      NULL);
-      gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combo_orientation), &iter);
-      gtk_box_pack_start (GTK_BOX (box), combo_orientation);
-
-      /* Style combo box: */
-      style_model = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT);
-      gtk_list_store_append (style_model, &iter);
-      gtk_list_store_set (style_model, &iter,
-                          0, "Text",
-                          1, GTK_TOOLBAR_TEXT,
-                          -1);
-      gtk_list_store_append (style_model, &iter);
-      gtk_list_store_set (style_model, &iter,
-                          0, "Both",
-                          1, GTK_TOOLBAR_BOTH,
-                          -1);
-      gtk_list_store_append (style_model, &iter);
-      gtk_list_store_set (style_model, &iter,
-                          0, "Both: Horizontal",
-                          1, GTK_TOOLBAR_BOTH_HORIZ,
-                          -1);
-      gtk_list_store_append (style_model, &iter);
-      gtk_list_store_set (style_model, &iter,
-                          0, "Icons",
-                          1, GTK_TOOLBAR_ICONS,
-                          -1);
-      gtk_list_store_append (style_model, &iter);
-      gtk_list_store_set (style_model, &iter,
-                          0, "Default",
-                          1, -1,  /* A custom meaning for this demo. */
-                          -1);
-      combo_style = gtk_combo_box_new_with_model (GTK_TREE_MODEL (style_model));
-      cell_renderer = gtk_cell_renderer_text_new ();
-      gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo_style),
-                                  cell_renderer,
-                                  TRUE);
-      gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo_style),
-                                      cell_renderer,
-                                      "text", 0,
-                                      NULL);
-      gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combo_style), &iter);
-      gtk_box_pack_start (GTK_BOX (box), combo_style);
-
-      /* Add hbox */
-      hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 5);
-      gtk_box_pack_start (GTK_BOX (box), hbox);
-
-      /* Add and fill the ToolPalette: */
-      palette = gtk_tool_palette_new ();
-
-      load_icon_items (GTK_TOOL_PALETTE (palette));
-      load_toggle_items (GTK_TOOL_PALETTE (palette));
-      load_special_items (GTK_TOOL_PALETTE (palette));
-
-      palette_scroller = gtk_scrolled_window_new (NULL, NULL);
-      gtk_widget_set_vexpand (palette_scroller, TRUE);
-      gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (palette_scroller),
-                                      GTK_POLICY_NEVER,
-                                      GTK_POLICY_AUTOMATIC);
-      g_object_set (palette_scroller, "margin", 6, NULL);
-      gtk_widget_set_hexpand (palette_scroller, TRUE);
-
-      gtk_container_add (GTK_CONTAINER (palette_scroller), palette);
-      gtk_container_add (GTK_CONTAINER (hbox), palette_scroller);
-
-      /* Connect signals: */
-      g_signal_connect (combo_orientation, "changed",
-                        G_CALLBACK (on_combo_orientation_changed), palette);
-      g_signal_connect (combo_style, "changed",
-                        G_CALLBACK (on_combo_style_changed), palette);
-
-      /* Keep the widgets in sync: */
-      on_combo_orientation_changed (GTK_COMBO_BOX (combo_orientation), palette);
-
-      /* ===== notebook ===== */
-
-      notebook = gtk_notebook_new ();
-      g_object_set (notebook, "margin", 6, NULL);
-      gtk_box_pack_end (GTK_BOX(hbox), notebook);
-
-      /* ===== DnD for tool items ===== */
-
-      g_signal_connect (palette, "drag-data-received",
-                        G_CALLBACK (palette_drag_data_received), NULL);
-
-      gtk_tool_palette_add_drag_dest (GTK_TOOL_PALETTE (palette),
-                                      palette,
-                                      GTK_DEST_DEFAULT_ALL,
-                                      GTK_TOOL_PALETTE_DRAG_ITEMS |
-                                      GTK_TOOL_PALETTE_DRAG_GROUPS,
-                                      GDK_ACTION_MOVE);
-
-      /* ===== passive DnD dest ===== */
-
-      contents = gtk_drawing_area_new ();
-
-      g_object_connect (contents,
-                        "draw", canvas_draw, NULL,
-                        "drag-data-received", passive_canvas_drag_data_received, NULL,
-                        NULL);
-
-      gtk_tool_palette_add_drag_dest (GTK_TOOL_PALETTE (palette),
-                                      contents,
-                                      GTK_DEST_DEFAULT_ALL,
-                                      GTK_TOOL_PALETTE_DRAG_ITEMS,
-                                      GDK_ACTION_COPY);
-
-      contents_scroller = gtk_scrolled_window_new (NULL, NULL);
-      gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (contents_scroller),
-                                      GTK_POLICY_AUTOMATIC,
-                                      GTK_POLICY_ALWAYS);
-      gtk_container_add (GTK_CONTAINER (contents_scroller), contents);
-
-      gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
-                                contents_scroller,
-                                gtk_label_new ("Passive DnD Mode"));
-      g_object_set (contents_scroller, "margin", 6, NULL);
-
-      /* ===== interactive DnD dest ===== */
-
-      contents = gtk_drawing_area_new ();
-
-      g_object_connect (contents,
-                        "draw", canvas_draw, NULL,
-                        "drag-motion", interactive_canvas_drag_motion, NULL,
-                        "drag-data-received", interactive_canvas_drag_data_received, NULL,
-                        "drag-leave", interactive_canvas_drag_leave, contents,
-                        "drag-drop", interactive_canvas_drag_drop, NULL,
-                        NULL);
-
-      gtk_tool_palette_add_drag_dest (GTK_TOOL_PALETTE (palette),
-                                      contents,
-                                      GTK_DEST_DEFAULT_HIGHLIGHT,
-                                      GTK_TOOL_PALETTE_DRAG_ITEMS,
-                                      GDK_ACTION_COPY);
-
-      contents_scroller = gtk_scrolled_window_new (NULL, NULL);
-      gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (contents_scroller),
-                                      GTK_POLICY_AUTOMATIC,
-                                      GTK_POLICY_ALWAYS);
-      gtk_container_add (GTK_CONTAINER (contents_scroller), contents);
-
-      gtk_notebook_append_page (GTK_NOTEBOOK (notebook), contents_scroller,
-                                gtk_label_new ("Interactive DnD Mode"));
-    }
-
-  if (!gtk_widget_get_visible (window))
-    {
-      gtk_widget_show (window);
-    }
-  else
-    {
-      gtk_widget_destroy (window);
-      window = NULL;
-    }
-
-  return window;
-}
-
-
-static void
-load_icon_items (GtkToolPalette *palette)
-{
-  GList *contexts;
-  GList *l;
-  GtkIconTheme *icon_theme;
-
-  icon_theme = gtk_icon_theme_get_for_display (gtk_widget_get_display (GTK_WIDGET (palette)));
-
-  contexts = gtk_icon_theme_list_contexts (icon_theme);
-  for (l = contexts; l; l = l->next)
-    {
-      gchar *context = l->data;
-      GList *icon_names;
-      GList *ll;
-      const guint max_icons = 10;
-      guint icons_count = 0;
-
-      GtkWidget *group = gtk_tool_item_group_new (context);
-      gtk_container_add (GTK_CONTAINER (palette), group);
-
-      if (g_strcmp0 (context, "Animations") == 0)
-        continue;
-
-      g_message ("Got context '%s'", context);
-      icon_names = gtk_icon_theme_list_icons (icon_theme, context);
-      icon_names = g_list_sort (icon_names, (GCompareFunc) strcmp);
-
-      for (ll = icon_names; ll; ll = ll->next)
-        {
-          GtkToolItem *item;
-          gchar *id = ll->data;
-
-          if (g_str_equal (id, "emblem-desktop"))
-            continue;
-
-          if (g_str_has_suffix (id, "-symbolic"))
-            continue;
-
-          g_message ("Got id '%s'", id);
-
-          item = gtk_tool_button_new (NULL, NULL);
-          gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), id);
-          gtk_tool_item_set_tooltip_text (GTK_TOOL_ITEM (item), id);
-          gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-
-          /* Prevent us having an insane number of icons: */
-          ++icons_count;
-          if(icons_count >= max_icons)
-            break;
-        }
-
-      g_list_free_full (icon_names, g_free);
-    }
-
-  g_list_free_full (contexts, g_free);
-}
-
-static void
-load_toggle_items (GtkToolPalette *palette)
-{
-  GSList *toggle_group = NULL;
-  GtkToolItem *item;
-  GtkWidget *group;
-  char *label;
-  int i;
-
-  group = gtk_tool_item_group_new ("Radio Item");
-  gtk_container_add (GTK_CONTAINER (palette), group);
-
-  for (i = 1; i <= 10; ++i)
-    {
-      label = g_strdup_printf ("#%d", i);
-      item = gtk_radio_tool_button_new (toggle_group);
-      gtk_tool_button_set_label (GTK_TOOL_BUTTON (item), label);
-      g_free (label);
-
-      gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-      toggle_group = gtk_radio_tool_button_get_group (GTK_RADIO_TOOL_BUTTON (item));
-    }
-}
-
-static GtkToolItem *
-create_entry_item (const char *text)
-{
-  GtkToolItem *item;
-  GtkWidget *entry;
-
-  entry = gtk_entry_new ();
-  gtk_entry_set_text (GTK_ENTRY (entry), text);
-  gtk_entry_set_width_chars (GTK_ENTRY (entry), 5);
-
-  item = gtk_tool_item_new ();
-  gtk_container_add (GTK_CONTAINER (item), entry);
-
-  return item;
-}
-
-static void
-load_special_items (GtkToolPalette *palette)
-{
-  GtkToolItem *item;
-  GtkWidget *group;
-  GtkWidget *label_button;
-
-  group = gtk_tool_item_group_new (NULL);
-  label_button = gtk_button_new_with_label ("Advanced Features");
-  gtk_widget_show (label_button);
-  gtk_tool_item_group_set_label_widget (GTK_TOOL_ITEM_GROUP (group),
-                                        label_button);
-  gtk_container_add (GTK_CONTAINER (palette), group);
-
-  item = create_entry_item ("homogeneous=FALSE");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_container_child_set (GTK_CONTAINER (group), GTK_WIDGET (item),
-                           "homogeneous", FALSE, NULL);
-
-  item = create_entry_item ("homogeneous=FALSE, expand=TRUE");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_container_child_set (GTK_CONTAINER (group), GTK_WIDGET (item),
-                           "homogeneous", FALSE, "expand", TRUE,
-                           NULL);
-
-  item = create_entry_item ("homogeneous=FALSE, expand=TRUE, fill=FALSE");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_container_child_set (GTK_CONTAINER (group), GTK_WIDGET (item),
-                           "homogeneous", FALSE, "expand", TRUE,
-                           "fill", FALSE, NULL);
-
-  item = create_entry_item ("homogeneous=FALSE, expand=TRUE, new-row=TRUE");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_container_child_set (GTK_CONTAINER (group), GTK_WIDGET (item),
-                           "homogeneous", FALSE, "expand", TRUE,
-                           "new-row", TRUE, NULL);
-
-  item = gtk_tool_button_new (NULL, NULL);
-  gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "go-up");
-  gtk_tool_item_set_tooltip_text (item, "Show on vertical palettes only");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_tool_item_set_visible_horizontal (item, FALSE);
-
-  item = gtk_tool_button_new (NULL, NULL);
-  gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "go-next");
-  gtk_tool_item_set_tooltip_text (item, "Show on horizontal palettes only");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_tool_item_set_visible_vertical (item, FALSE);
-
-  item = gtk_tool_button_new (NULL, NULL);
-  gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "edit-delete");
-  gtk_tool_item_set_tooltip_text (item, "Do not show at all");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_widget_hide (GTK_WIDGET (item));
-
-  item = gtk_tool_button_new (NULL, NULL);
-  gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "view-fullscreen");
-  gtk_tool_item_set_tooltip_text (item, "Expanded this item");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_container_child_set (GTK_CONTAINER (group), GTK_WIDGET (item),
-                           "homogeneous", FALSE,
-                           "expand", TRUE,
-                           NULL);
-
-  item = gtk_tool_button_new (NULL, NULL);
-  gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "help-browser");
-  gtk_tool_item_set_tooltip_text (item, "A regular item");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-}
--- a/demos/gtk-demo/widgetbowl.c
+++ b/demos/gtk-demo/widgetbowl.c
@@ -8,13 +8,29 @@
 #include <gtk/gtk.h>

 #include "gtkfishbowl.h"
+#include "gtkgears.h"
+
+const char *const css =
+".blurred-button {"
+"  box-shadow: 0px 0px 5px 10px rgba(0, 0, 0, 0.5);"
+"}"
+"";

 GtkWidget *fishbowl;

 static GtkWidget *
 create_button (void)
 {
-  return gtk_button_new_with_label ("Button");;
+  return gtk_button_new_with_label ("Button");
+}
+static GtkWidget *
+create_blurred_button (void)
+{
+  GtkWidget *w = gtk_button_new ();
+
+  gtk_style_context_add_class (gtk_widget_get_style_context (w), "blurred-button");
+
+  return w;
 }

 static GtkWidget *
@@ -65,16 +81,28 @@ create_label (void)
  return w;
 }

+static GtkWidget *
+create_gears (void)
+{
+  GtkWidget *w = gtk_gears_new ();
+
+  gtk_widget_set_size_request (w, 100, 100);
+
+  return w;
+}
+
 static const struct {
  const char *name;
  GtkWidget * (*create_func) (void);
 } widget_types[] = {
-  { "Button",     create_button      },
-  { "Fontbutton", create_font_button },
-  { "Levelbar"  , create_level_bar   },
-  { "Label"     , create_label       },
-  { "Spinner"   , create_spinner     },
-  { "Spinbutton", create_spinbutton  },
+  { "Button",     create_button         },
+  { "Blurbutton", create_blurred_button },
+  { "Fontbutton", create_font_button    },
+  { "Levelbar"  , create_level_bar      },
+  { "Label"     , create_label          },
+  { "Spinner"   , create_spinner        },
+  { "Spinbutton", create_spinbutton     },
+  { "Gears",      create_gears          },
 };

 static int selected_widget_type = -1;
@@ -295,6 +323,18 @@ GtkWidget *
 do_widgetbowl (GtkWidget *do_widget)
 {
  static GtkWidget *window = NULL;
+  static GtkCssProvider *provider = NULL;
+
+  gtk_init ();
+
+  if (provider == NULL)
+    {
+      provider = gtk_css_provider_new ();
+      gtk_css_provider_load_from_data (provider, css, -1);
+      gtk_style_context_add_provider_for_display (gdk_display_get_default (),
+                                                  GTK_STYLE_PROVIDER (provider),
+                                                  GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+    }

  if (!window)
    {
--- a/demos/icon-browser/iconbrowserwin.c
+++ b/demos/icon-browser/iconbrowserwin.c
@@ -54,6 +54,7 @@ struct _IconBrowserWindow
  GtkWidget *image6;
  GtkWidget *label6;
  GtkWidget *description;
+  GtkEventController *controller;
 };

 struct _IconBrowserWindowClass
@@ -286,13 +287,16 @@ populate (IconBrowserWindow *win)
 }

 static gboolean
-key_press_event_cb (GtkWidget *widget,
-                    GdkEvent  *event,
-                    gpointer   data)
+key_event_cb (GtkEventController *controller,
+              guint               keyval,
+              guint               keycode,
+              GdkModifierType     state,
+              gpointer            data)
 {
  IconBrowserWindow *win = data;

-  return gtk_search_bar_handle_event (GTK_SEARCH_BAR (win->searchbar), event);
+  return gtk_search_bar_handle_event (GTK_SEARCH_BAR (win->searchbar),
+                                      gtk_get_current_event ());
 }

 static void
@@ -467,6 +471,7 @@ icon_browser_window_init (IconBrowserWindow *win)
  setup_image_dnd (win->image3);
  setup_image_dnd (win->image4);
  setup_image_dnd (win->image5);
+  setup_image_dnd (win->image6);
  setup_scalable_image_dnd (win->image6);

  win->contexts = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, context_free);
@@ -479,12 +484,31 @@ icon_browser_window_init (IconBrowserWindow *win)

  symbolic_toggled (GTK_TOGGLE_BUTTON (win->symbolic_radio), win);

+  win->controller = gtk_event_controller_key_new (GTK_WIDGET (win));
+  g_signal_connect (win->controller, "key-pressed", G_CALLBACK (key_event_cb), win);
+
  populate (win);
 }

+static void
+icon_browser_window_finalize (GObject *object)
+{
+  IconBrowserWindow *win = ICON_BROWSER_WINDOW (win);
+
+  g_hash_table_unref (win->contexts);
+
+  g_object_unref (win->controller);
+
+  G_OBJECT_CLASS (icon_browser_window_parent_class)->finalize (object);
+}
+
 static void
 icon_browser_window_class_init (IconBrowserWindowClass *class)
 {
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+  object_class->finalize = icon_browser_window_finalize;
+
  g_type_ensure (ICON_STORE_TYPE);

  gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
@@ -515,7 +539,6 @@ icon_browser_window_class_init (IconBrowserWindowClass *class)
  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), item_activated);
  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), selected_context_changed);
  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), symbolic_toggled);
-  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), key_press_event_cb);
  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), copy_to_clipboard);
 }

--- a/demos/icon-browser/window.ui
+++ b/demos/icon-browser/window.ui
@@ -1,38 +1,32 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <!-- interface-requires gtk+ 3.8 -->
-  <object class="IconStore" id="store">
-  </object>
+  <object class="IconStore" id="store"/>
  <object class="GtkTreeModelFilter" id="filter_model">
-    <property name="child_model">store</property>
+    <property name="child-model">store</property>
  </object>
  <template class="IconBrowserWindow" parent="GtkApplicationWindow">
    <property name="title" translatable="yes">Icon Browser</property>
    <property name="default-width">1024</property>
    <property name="default-height">768</property>
-    <signal name="key-press-event" handler="key_press_event_cb"/>
    <child type="titlebar">
      <object class="GtkHeaderBar" id="header">
-        <property name="visible">True</property>
        <property name="title" translatable="yes">Icon Browser</property>
-        <property name="show-title-buttons">True</property>
+        <property name="show-title-buttons">1</property>
        <child type="title">
          <object class="GtkBox">
-            <property name="visible">True</property>
            <style>
              <class name="linked"/>
            </style>
            <child>
              <object class="GtkRadioButton" id="normal_radio">
-                <property name="visible">True</property>
-                <property name="draw_indicator">False</property>
+                <property name="draw-indicator">0</property>
                <property name="label" translatable="yes">Normal</property>
              </object>
            </child>
            <child>
              <object class="GtkRadioButton" id="symbolic_radio">
-                <property name="visible">True</property>
-                <property name="draw_indicator">False</property>
+                <property name="draw-indicator">0</property>
                <property name="label" translatable="yes">Symbolic</property>
                <property name="group">normal_radio</property>
                <signal name="toggled" handler="symbolic_toggled"/>
@@ -42,13 +36,11 @@
        </child>
        <child>
          <object class="GtkToggleButton" id="search">
-            <property name="visible">True</property>
            <style>
              <class name="image-button"/>
            </style>
            <child>
              <object class="GtkImage" id="search-icon">
-                <property name="visible">True</property>
                <property name="icon-name">edit-find-symbolic</property>
              </object>
            </child>
@@ -61,32 +53,24 @@
    </child>
    <child>
      <object class="GtkBox">
-        <property name="visible">True</property>
-        <property name="orientation">horizontal</property>
        <child>
          <object class="GtkListBox" id="context_list">
-            <property name="visible">True</property>
-            <property name="selection_mode">single</property>
            <signal name="selected-rows-changed" handler="selected_context_changed"/>
          </object>
        </child>
        <child>
          <object class="GtkSeparator">
-            <property name="visible">True</property>
            <property name="orientation">vertical</property>
          </object>
        </child>
        <child>
          <object class="GtkBox" id="content_box">
-            <property name="visible">True</property>
            <property name="orientation">vertical</property>
            <child>
              <object class="GtkSearchBar" id="searchbar">
-                <property name="visible">True</property>
                <property name="search-mode-enabled" bind-source="search" bind-property="active" bind-flags="bidirectional"/>
                <child>
                  <object class="GtkSearchEntry" id="searchentry">
-                    <property name="visible">True</property>
                    <signal name="search-changed" handler="search_text_changed"/>
                  </object>
                </child>
@@ -94,29 +78,24 @@
            </child>
            <child>
              <object class="GtkScrolledWindow" id="sw">
-                <property name="visible">True</property>
-                <property name="expand">True</property>
+                <property name="expand">1</property>
                <property name="hscrollbar-policy">never</property>
-                <property name="vscrollbar-policy">automatic</property>
                <child>
                  <object class="GtkIconView" id="list">
-                    <property name="visible">True</property>
                    <property name="model">filter_model</property>
                    <property name="selection-mode">none</property>
-                    <property name="activate-on-single-click">True</property>
+                    <property name="activate-on-single-click">1</property>
                    <signal name="item_activated" handler="item_activated"/>
                    <child>
                      <object class="GtkCellRendererPixbuf" id="cell">
                        <property name="xpad">10</property>
                        <property name="ypad">10</property>
-                        <property name="stock-size">6</property>
                      </object>
                    </child>
                    <child>
                      <object class="GtkCellRendererText" id="text_cell">
                        <property name="xpad">10</property>
                        <property name="ypad">10</property>
-                        <property name="xalign">0.5</property>
                      </object>
                    </child>
                  </object>
@@ -137,22 +116,20 @@
    </widgets>
  </object>
  <object class="GtkDialog" id="details">
-    <property name="modal">True</property>
+    <property name="modal">1</property>
    <property name="use-header-bar">1</property>
-    <property name="resizable">False</property>
-    <signal name="delete-event" handler="gtk_widget_hide_on_delete"/>
+    <property name="resizable">0</property>
+    <property name="hide-on-close">1</property>
    <child internal-child="vbox">
      <object class="GtkBox">
        <child>
          <object class="GtkGrid">
-            <property name="visible">True</property>
            <property name="margin">10</property>
            <property name="row-spacing">18</property>
            <property name="column-spacing">18</property>
            <property name="halign">center</property>
            <child>
              <object class="GtkImage" id="image1">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">end</property>
              </object>
@@ -163,7 +140,6 @@
            </child>
            <child>
              <object class="GtkImage" id="image2">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">end</property>
              </object>
@@ -174,7 +150,6 @@
            </child>
            <child>
              <object class="GtkImage" id="image3">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">end</property>
              </object>
@@ -185,7 +160,6 @@
            </child>
            <child>
              <object class="GtkImage" id="image4">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">end</property>
              </object>
@@ -196,7 +170,6 @@
            </child>
            <child>
              <object class="GtkImage" id="image5">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">end</property>
              </object>
@@ -207,7 +180,6 @@
            </child>
            <child>
              <object class="GtkImage" id="image6">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">end</property>
              </object>
@@ -216,10 +188,8 @@
                <property name="top-attach">1</property>
              </packing>
            </child>
-
            <child>
              <object class="GtkLabel" id="label1">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">baseline</property>
                <property name="label">16×16</property>
@@ -234,7 +204,6 @@
            </child>
            <child>
              <object class="GtkLabel" id="label2">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">baseline</property>
                <property name="label">24×24</property>
@@ -249,7 +218,6 @@
            </child>
            <child>
              <object class="GtkLabel" id="label3">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">baseline</property>
                <property name="label">32×32</property>
@@ -264,7 +232,6 @@
            </child>
            <child>
              <object class="GtkLabel" id="label4">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">baseline</property>
                <property name="label">48×48</property>
@@ -279,7 +246,6 @@
            </child>
            <child>
              <object class="GtkLabel" id="label5">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">baseline</property>
                <property name="label">64×64</property>
@@ -294,7 +260,6 @@
            </child>
            <child>
              <object class="GtkLabel" id="label6">
-                <property name="visible">True</property>
                <property name="halign">center</property>
                <property name="valign">baseline</property>
                <property name="label">scalable</property>
@@ -311,7 +276,6 @@
        </child>
        <child>
          <object class="GtkButton">
-            <property name="visible">True</property>
            <property name="label" translatable="yes">Copy to Clipboard</property>
            <property name="halign">center</property>
            <property name="valign">center</property>
@@ -322,8 +286,7 @@
        <child>
          <object class="GtkLabel" id="description">
            <property name="margin">10</property>
-            <property name="visible">True</property>
-            <property name="wrap">True</property>
+            <property name="wrap">1</property>
            <property name="max-width-chars">60</property>
            <property name="valign">start</property>
          </object>
--- a/demos/widget-factory/help-overlay.ui
+++ b/demos/widget-factory/help-overlay.ui
@@ -2,28 +2,23 @@
  <object class="GtkShortcutsWindow" id="help_overlay">
    <child>
      <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title">General</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">F1</property>
                <property name="title">Show About Dialog</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Primary&gt;q</property>
                <property name="title">Quit</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Primary&gt;d</property>
                <property name="title">Switch to dark theme</property>
              </object>
@@ -32,26 +27,22 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title">Traditional</property>
            <property name="view">page2</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Primary&gt;s</property>
                <property name="title">Search</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">Delete</property>
                <property name="title">Delete</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Primary&gt;b</property>
                <property name="title">Set background</property>
              </object>
@@ -60,26 +51,22 @@
        </child>
        <child>
          <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
            <property name="title">Modern</property>
            <property name="view">page3</property>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Primary&gt;o</property>
                <property name="title">Open a file</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Primary&gt;r</property>
                <property name="title">Start recording</property>
              </object>
            </child>
            <child>
              <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                <property name="accelerator">&lt;Primary&gt;l</property>
                <property name="title">Lock or unlock</property>
              </object>
--- a/demos/widget-factory/widget-factory.ui
+++ b/demos/widget-factory/widget-factory.ui
--- a/docs/CODING-STYLE
+++ b/docs/CODING-STYLE
@@ -439,41 +439,91 @@ Public headers should never be included directly:
  #error "Only <gtk/gtk.h> can be included directly."
  #endif

-All headers should have inclusion guards (for internal usage)
-and C++ guards:
+Private headers should include the public header first, if one exists:
+
+  #ifndef __GTK_FOO_PRIVATE_H__
+  #define __GTK_FOO_PRIVATE_H__
+
+  #include "gtkfoo.h"
+
+  ...
+
+  #endif /* __GTK_FOO_PRIVATE_H__ */
+
+All headers should have inclusion guards:

  #ifndef __GTK_FOO_H__
  #define __GTK_FOO_H__

-  #include <gtk/gtk-bar.h>
+  ...
+
+  #endif /* __GTK_FOO_H__ */
+
+You can also use the "once" pragma instead of the classic pre-processor guard:
+
+  #pragma once
+
+Additionally, public headers should use C++ guards around their declarations:

  G_BEGIN_DECLS

+  GDK_AVAILABLE_IN_ALL
+  GType         gtk_foo_get_type        (void) G_GNUC_CONST;
+
+  GDK_AVAILABLE_IN_ALL
+  GtkWidget *   gtk_foo_new             (void);
+
  ...

  G_END_DECLS

-  #endif /* __GTK_FOO_H__ */
-
 + Includes

-GTK+ source files should never include the global gtk.h header, but
-instead include the individual headers that are needed. Every file must
-include config.h first, then its own header, then other GTK+ headers
-that it needs, then system and third-party headers that it needs.
+GTK+ source files must never include the global gtk.h header; instead, it
+should include the individual headers that are needed.
+
+Every source file must include config.h first, followed by the header matching
+the source file, either the public installed header, or the private header, if
+it exists.

-  /* valid */
  #include "config.h"

  #include "gtkfoo.h"

-  #include "gtkwidget.h"
+Source files should then include project headers, in alphabetical order,
+starting from headers in the current directory; then headers in
+sub-directories; and, finally, in paths relative to the top-level
+directory:
+
+  #include "config.h"
+
+  #include "gtkfooprivate.h"
+
  #include "gtkbutton.h"
+  #include "gtkwidget.h"

-  ...
+  #include "a11y/gtkwidgetaccessible.h"

+  #include "gdk/gdkwindowprivate.h"
+
+Finally, source files should include the system headers last:
+
+  #include "config.h"
+
+  #include "gtkbarprivate.h"
+
+  #include "gtkcontainerprivate.h"
+
+  #include "a11y/gtkcontaineraccessible.h"
+  #include "a11y/gtkwidgetaccessible.h"
+
+  #include "gdk/gdkwindowprivate.h"
+
+  #include <graphene.h>
  #include <string.h>

+Cyclic dependencies should be avoided if at all possible; for instance, you
+could use additional headers to break cycles.

 + GObject

@@ -484,7 +534,6 @@ Typedef declarations should be placed at the beginning of the file:

  typedef struct _GtkFoo          GtkFoo;
  typedef struct _GtkFooClass     GtkFooClass;
-  typedef struct _GtkFooPrivate   GtkFooPrivate;

 This includes enumeration types:

@@ -499,26 +548,21 @@ And callback types:
  typedef void (* GtkCallback) (GtkWidget *widget,
                                gpointer   user_data);

-Instance structures should only contain the parent type, and optionally a
-pointer to a private data structure, and they should be annotated as
-"private" using the gtk-doc trigraph:
+Instance structures should only contain the parent type:

  struct _GtkFoo
  {
-    /*< private >*/
    GtkWidget parent_instance;
-
-    GtkFooPrivate *priv;
  };

-The private data pointer is optional and should be omitted in newly
-written classes.
+You should use the G_DECLARE_DERIVABLE_TYPE() and G_DECLARE_FINAL_TYPE()
+macros in newly written headers.

-Always use the G_DEFINE_TYPE(), G_DEFINE_TYPE_WITH_PRIVATE(), and
-G_DEFINE_TYPE_WITH_CODE() macros, or their abstract variants
-G_DEFINE_ABSTRACT_TYPE(), G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE(), and
-G_DEFINE_ABSTRACT_TYPE_WITH_CODE(); also, use the similar macros for
-defining interfaces and boxed types.
+Inside your source file, always use the G_DEFINE_TYPE(),
+G_DEFINE_TYPE_WITH_PRIVATE(), and G_DEFINE_TYPE_WITH_CODE() macros, or their
+abstract variants G_DEFINE_ABSTRACT_TYPE(),
+G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE(), and G_DEFINE_ABSTRACT_TYPE_WITH_CODE();
+also, use the similar macros for defining interfaces, quarks, and boxed types.

 All the properties should be stored inside the private data structure, which
 is defined inside the source file - or, if needed, inside a private header
@@ -526,14 +570,14 @@ file; the private header filename must end with "private.h" and must not be
 installed.

 The private data structure should only be accessed internally either using the
-pointer inside the instance structure, if one is available, or the generated
+pointer inside the instance structure, for legacy code, or the generated
 instance private data getter function for your type. You should never use the
 G_TYPE_INSTANCE_GET_PRIVATE() macro or the g_type_instance_get_private()
 function.

 Interface types should always have the dummy typedef for cast purposes:

-        typedef struct _GtkFoo              GtkFoo;
+        typedef struct _GtkFoo                  GtkFoo;

 The interface structure should have "Interface" postfixed to the dummy typedef:

@@ -564,19 +608,16 @@ Inline functions are usually preferable to private macros.

 Public macros should not be used unless they evaluate to a constant.

-+ Public API
+ Symbol visibility

-Avoid exporting variables as public API, since this is cumbersome on some
+Any symbol that is not explicitly annotated using a GDK_AVAILABLE_IN_*
+macro is considered internal, and not exported in the shared library.
+
+Never export variables as public API, since this is cumbersome on some
 platforms. It is always preferable to add getters and setters instead.

-All public functions must be listed in the gtk.symbols file.
-
-+ Private API
-
 Non-exported functions that are needed in more than one source file
-should be named "_gtk_...", and declared in a private header file.
-
-Underscore-prefixed functions are never exported.
+should be declared in a private header file.

 Non-exported functions that are only needed in one source file
 should be declared static.
@@ -638,4 +679,4 @@ of tabs, etc.

 It is ok to update the style of a code block or function when you
 are touching it anyway, but sweeping whitespace changes obscure the
-git history and should be avoided.
+source revision history, and should be avoided.
--- a/docs/reference/gdk/gdk4-docs.xml
+++ b/docs/reference/gdk/gdk4-docs.xml
@@ -22,11 +22,10 @@
    <xi:include href="xml/gdkdisplaymanager.xml" />
    <xi:include href="xml/gdkdisplay.xml" />
    <xi:include href="xml/gdkseat.xml" />
-    <xi:include href="xml/gdkmonitor.xml" />
    <xi:include href="xml/gdkdevice.xml" />
    <xi:include href="xml/gdkdevicepad.xml" />
+    <xi:include href="xml/gdkmonitor.xml" />
    <xi:include href="xml/regions.xml" />
-    <xi:include href="xml/pixbufs.xml" />
    <xi:include href="xml/textures.xml" />
    <xi:include href="xml/rgba_colors.xml" />
    <xi:include href="xml/cursors.xml" />
@@ -34,25 +33,24 @@
    <xi:include href="xml/gdkframeclock.xml" />
    <xi:include href="xml/gdkframetimings.xml" />
    <xi:include href="xml/gdkdrawingcontext.xml" />
+    <xi:include href="xml/gdkdrawcontext.xml" />
    <xi:include href="xml/gdkglcontext.xml" />
    <xi:include href="xml/gdkvulkancontext.xml" />
    <xi:include href="xml/events.xml" />
-    <xi:include href="xml/event_structs.xml" />
    <xi:include href="xml/keys.xml" />
-    <xi:include href="xml/selections.xml" />
+    <xi:include href="xml/gdkclipboard.xml" />
+    <xi:include href="xml/dnd.xml" />
    <xi:include href="xml/gdkcontentformats.xml" />
    <xi:include href="xml/gdkcontentprovider.xml" />
    <xi:include href="xml/gdkcontentserializer.xml" />
    <xi:include href="xml/gdkcontentdeserializer.xml" />
-    <xi:include href="xml/gdkclipboard.xml" />
-    <xi:include href="xml/dnd.xml" />
    <xi:include href="xml/properties.xml" />
-    <xi:include href="xml/threads.xml" />
+    <xi:include href="xml/gdkapplaunchcontext.xml" />
+    <xi:include href="xml/pixbufs.xml" />
    <xi:include href="xml/pango_interaction.xml" />
    <xi:include href="xml/cairo_interaction.xml" />
    <xi:include href="xml/x_interaction.xml" />
    <xi:include href="xml/wayland_interaction.xml" />
-    <xi:include href="xml/gdkapplaunchcontext.xml" />
  </reference>

  <index id="api-index-full">
@@ -63,54 +61,6 @@
    <title>Index of deprecated symbols</title>
    <xi:include href="xml/api-index-deprecated.xml"><xi:fallback /></xi:include>
  </index>
-  <index id="api-index-3-0" role="3.0">
-    <title>Index of new symbols in 3.0</title>
-    <xi:include href="xml/api-index-3.0.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-2" role="3.2">
-    <title>Index of new symbols in 3.2</title>
-    <xi:include href="xml/api-index-3.2.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-4" role="3.4">
-    <title>Index of new symbols in 3.4</title>
-    <xi:include href="xml/api-index-3.4.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-6" role="3.6">
-    <title>Index of new symbols in 3.6</title>
-    <xi:include href="xml/api-index-3.6.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-8" role="3.8">
-    <title>Index of new symbols in 3.8</title>
-    <xi:include href="xml/api-index-3.8.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-10" role="3.10">
-    <title>Index of new symbols in 3.10</title>
-    <xi:include href="xml/api-index-3.10.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-12" role="3.12">
-    <title>Index of new symbols in 3.12</title>
-    <xi:include href="xml/api-index-3.12.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-14" role="3.14">
-    <title>Index of new symbols in 3.14</title>
-    <xi:include href="xml/api-index-3.14.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-16" role="3.16">
-    <title>Index of new symbols in 3.16</title>
-    <xi:include href="xml/api-index-3.16.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-18" role="3.18">
-    <title>Index of new symbols in 3.18</title>
-    <xi:include href="xml/api-index-3.18.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-20" role="3.20">
-    <title>Index of new symbols in 3.20</title>
-    <xi:include href="xml/api-index-3.20.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-22" role="3.22">
-    <title>Index of new symbols in 3.22</title>
-    <xi:include href="xml/api-index-3.22.xml"><xi:fallback /></xi:include>
-  </index>

  <xi:include href="xml/annotation-glossary.xml"><xi:fallback /></xi:include>

--- a/docs/reference/gdk/gdk4-sections.txt
+++ b/docs/reference/gdk/gdk4-sections.txt
@@ -12,14 +12,7 @@ GDK_WINDOWING_QUARTZ
 GDK_WINDOWING_WAYLAND

 <SUBSECTION>
-GDK_VERSION_3_0
-GDK_VERSION_3_2
-GDK_VERSION_3_4
-GDK_VERSION_3_6
-GDK_VERSION_3_8
-GDK_VERSION_3_10
-GDK_VERSION_3_12
-GDK_VERSION_3_14
+GDK_VERSION_4_0
 GDK_VERSION_MIN_REQUIRED
 GDK_VERSION_MAX_ALLOWED
 GDK_DISABLE_DEPRECATION_WARNINGS
@@ -49,7 +42,6 @@ gdk_input_source_get_type
 gdk_modifier_intent_get_type
 gdk_modifier_type_get_type
 gdk_notify_type_get_type
-gdk_property_state_get_type
 gdk_prop_mode_get_type
 gdk_scroll_direction_get_type
 gdk_setting_action_get_type
@@ -63,6 +55,15 @@ gdk_window_type_get_type
 gdk_window_type_hint_get_type
 gdk_wm_decoration_get_type
 gdk_wm_function_get_type
+GDK_AVAILABLE_IN_4_0
+GDK_AVAILABLE_IN_ALL
+GDK_UNAVAILABLE
+GDK_DEPRECATED
+GDK_DEPRECATED_FOR
+GDK_DEPRECATED_IN_4_0
+GDK_DEPRECATED_IN_4_0_FOR
+GDK_VERSION_CUR_STABLE
+GDK_VERSION_PREV_STABLE
 </SECTION>

 <SECTION>
@@ -84,15 +85,7 @@ gdk_display_put_event
 gdk_display_has_pending
 gdk_display_is_rgba
 gdk_display_is_composited
-gdk_display_supports_cursor_color
-gdk_display_supports_cursor_alpha
-gdk_display_get_default_cursor_size
-gdk_display_get_maximal_cursor_size
 gdk_display_get_default_group
-gdk_display_supports_selection_notification
-gdk_display_request_selection_notification
-gdk_display_supports_clipboard_persistence
-gdk_display_store_clipboard
 gdk_display_supports_shapes
 gdk_display_supports_input_shapes
 gdk_display_get_app_launch_context
@@ -107,6 +100,7 @@ gdk_display_get_monitor_at_window
 gdk_display_get_clipboard
 gdk_display_get_primary_clipboard
 gdk_display_get_setting
+gdk_display_get_keymap

 <SUBSECTION Standard>
 GDK_DISPLAY
@@ -184,6 +178,7 @@ GdkGravity
 GdkAnchorHints
 GdkWindowEdge
 GdkWindowTypeHint
+GdkWindowState
 gdk_window_new_toplevel
 gdk_window_new_popup
 gdk_window_new_temp
@@ -240,7 +235,6 @@ gdk_window_get_scale_factor
 gdk_window_set_opaque_region
 gdk_window_create_gl_context
 gdk_window_create_vulkan_context
-gdk_window_mark_paint_from_clip

 <SUBSECTION>
 gdk_window_get_clip_region
@@ -264,11 +258,6 @@ gdk_window_set_accept_focus
 gdk_window_get_accept_focus
 gdk_window_set_focus_on_map
 gdk_window_get_focus_on_map
-gdk_window_add_filter
-gdk_window_remove_filter
-GdkFilterFunc
-GdkFilterReturn
-GdkXEvent
 gdk_window_shape_combine_region
 gdk_window_set_child_shapes
 gdk_window_merge_child_shapes
@@ -328,8 +317,6 @@ gdk_window_get_device_cursor
 gdk_window_set_device_cursor
 gdk_window_get_device_events
 gdk_window_set_device_events
-gdk_window_get_event_compression
-gdk_window_set_event_compression

 <SUBSECTION>
 gdk_window_coords_from_parent
@@ -352,6 +339,7 @@ GDK_TYPE_WINDOW_TYPE
 GDK_TYPE_WINDOW_TYPE_HINT
 GDK_TYPE_WM_DECORATION
 GDK_TYPE_WM_FUNCTION
+GDK_TYPE_WINDOW_STATE

 <SUBSECTION Private>
 gdk_window_get_type
@@ -395,64 +383,28 @@ gdk_content_formats_union_deserialize_mime_types
 <SUBSECTION>
 GdkContentFormatsBuilder
 gdk_content_formats_builder_new
-gdk_content_formats_builder_free
+gdk_content_formats_builder_free_to_formats
 gdk_content_formats_builder_add_formats
 gdk_content_formats_builder_add_gtype
 gdk_content_formats_builder_add_mime_type

+<SUBSECTION>
+gdk_content_formats_builder_ref
+gdk_content_formats_builder_unref
+gdk_content_formats_builder_to_formats
+
 <SUBSECTION Private>
 GDK_TYPE_FILE_LIST
 gdk_file_list_get_type
 gdk_content_formats_get_type
 </SECTION>

-<SECTION>
-<TITLE>Selections</TITLE>
-<FILE>selections</FILE>
-GDK_SELECTION_PRIMARY
-GDK_SELECTION_SECONDARY
-GDK_SELECTION_CLIPBOARD
-GDK_TARGET_BITMAP
-GDK_TARGET_COLORMAP
-GDK_TARGET_DRAWABLE
-GDK_TARGET_PIXMAP
-GDK_TARGET_STRING
-GDK_SELECTION_TYPE_ATOM
-GDK_SELECTION_TYPE_BITMAP
-GDK_SELECTION_TYPE_COLORMAP
-GDK_SELECTION_TYPE_DRAWABLE
-GDK_SELECTION_TYPE_INTEGER
-GDK_SELECTION_TYPE_PIXMAP
-GDK_SELECTION_TYPE_WINDOW
-GDK_SELECTION_TYPE_STRING
-gdk_selection_owner_set
-gdk_selection_owner_set_for_display
-gdk_selection_owner_get
-gdk_selection_owner_get_for_display
-gdk_selection_convert
-gdk_selection_property_get
-gdk_selection_send_notify
-gdk_selection_send_notify_for_display
-</SECTION>
-
 <SECTION>
 <TITLE>Properties and Atoms</TITLE>
 <FILE>properties</FILE>
 GdkAtom
-GDK_ATOM_TO_POINTER
-GDK_POINTER_TO_ATOM
 gdk_text_property_to_utf8_list_for_display
 gdk_utf8_to_string_target
-gdk_atom_intern
-gdk_atom_intern_static_string
-gdk_atom_name
-gdk_property_get
-gdk_property_change
-GdkPropMode
-gdk_property_delete
-
-<SUBSECTION Standard>
-GDK_TYPE_PROP_MODE
 </SECTION>

 <SECTION>
@@ -495,29 +447,11 @@ gdk_rectangle_contains_point
 gdk_rectangle_get_type
 </SECTION>

-<SECTION>
-<TITLE>Threads</TITLE>
-<FILE>threads</FILE>
-GDK_THREADS_ENTER
-GDK_THREADS_LEAVE
-gdk_threads_init
-gdk_threads_enter
-gdk_threads_leave
-gdk_threads_add_idle
-gdk_threads_add_idle_full
-gdk_threads_add_timeout
-gdk_threads_add_timeout_full
-gdk_threads_add_timeout_seconds
-gdk_threads_add_timeout_seconds_full
-</SECTION>
-
 <SECTION>
 <TITLE>Keyboard Handling</TITLE>
 <FILE>keys</FILE>
 GdkKeymap
 GdkKeymapKey
-gdk_keymap_get_default
-gdk_keymap_get_for_display
 gdk_keymap_lookup_key
 gdk_keymap_translate_keyboard_state
 gdk_keymap_get_entries_for_keyval
@@ -630,6 +564,8 @@ GDK_DEVICE_GET_CLASS
 GDK_IS_DEVICE
 GDK_IS_DEVICE_CLASS
 GDK_TYPE_DEVICE
+GDK_DEVICE_TOOL
+GDK_IS_DEVICE_TOOL

 <SUBSECTION Private>
 GdkDeviceClass
@@ -654,6 +590,7 @@ gdk_device_pad_get_feature_group
 GDK_TYPE_DEVICE_PAD
 GDK_DEVICE_PAD
 GDK_IS_DEVICE_PAD
+GDK_DEVICE_PAD_GET_IFACE

 <SUBSECTION Private>
 gdk_device_pad_get_type
@@ -689,8 +626,12 @@ gdk_seat_capabilities_get_type
 <SECTION>
 <TITLE>Events</TITLE>
 <FILE>events</FILE>
+GdkEvent
 GdkEventType
 GdkEventMask
+GdkScrollDirection
+GdkCrossingMode
+GdkNotifyType
 GDK_CURRENT_TIME
 GDK_PRIORITY_EVENTS
 GDK_PRIORITY_REDRAW
@@ -704,7 +645,7 @@ GDK_BUTTON_SECONDARY
 gdk_event_new
 gdk_event_copy
 gdk_event_free
-gdk_event_get_axis
+gdk_event_get_axes
 gdk_event_get_button
 gdk_event_get_click_count
 gdk_event_get_coords
@@ -720,7 +661,6 @@ gdk_event_get_window
 gdk_event_get_event_type
 GdkEventSequence
 gdk_event_get_event_sequence
-gdk_event_request_motions
 gdk_events_get_angle
 gdk_events_get_center
 gdk_events_get_distance
@@ -728,7 +668,25 @@ gdk_event_triggers_context_menu
 gdk_event_get_seat
 gdk_event_get_scancode
 gdk_event_get_pointer_emulated
-
+gdk_event_get_crossing_detail
+gdk_event_get_crossing_mode
+gdk_event_get_drag_context
+gdk_event_get_focus_in
+gdk_event_get_grab_window
+gdk_event_get_motion_history
+gdk_event_get_key_group
+gdk_event_get_key_is_modifier
+gdk_event_get_pad_axis_value
+gdk_event_get_pad_button
+gdk_event_get_pad_group_mode
+gdk_event_get_string
+gdk_event_get_touch_emulating_pointer
+gdk_event_get_touchpad_angle_delta
+gdk_event_get_touchpad_deltas
+gdk_event_get_touchpad_gesture_n_fingers
+gdk_event_get_touchpad_gesture_phase
+gdk_event_get_touchpad_scale
+gdk_event_is_sent
 <SUBSECTION>
 gdk_event_handler_set
 GdkEventFunc
@@ -746,58 +704,14 @@ gdk_event_get_device_tool
 gdk_event_set_device_tool

 <SUBSECTION Standard>
+GDK_TYPE_EVENT
 GDK_TYPE_EVENT_MASK
 GDK_TYPE_EVENT_TYPE
-</SECTION>
-
-<SECTION>
-<TITLE>Event Structures</TITLE>
-<FILE>event_structs</FILE>
-GdkEvent
-
-<SUBSECTION>
-GdkEventAny
-GdkEventKey
-GdkEventButton
-GdkEventTouch
-GdkEventScroll
-GdkEventMotion
-GdkEventExpose
-GdkEventCrossing
-GdkEventFocus
-GdkEventConfigure
-GdkEventProperty
-GdkEventSelection
-GdkEventDND
-GdkEventProximity
-GdkEventWindowState
-GdkEventOwnerChange
-GdkEventGrabBroken
-GdkEventTouchpadSwipe
-GdkEventTouchpadPinch
-GdkEventPadButton
-GdkEventPadAxis
-GdkEventPadGroupMode
-
-<SUBSECTION>
-GdkScrollDirection
-GdkCrossingMode
-GdkNotifyType
-GdkPropertyState
-GdkWindowState
-
-<SUBSECTION Standard>
 GDK_TYPE_CROSSING_MODE
-GDK_TYPE_EVENT
-GDK_TYPE_NOTIFY_TYPE
-GDK_TYPE_PROPERTY_STATE
 GDK_TYPE_SCROLL_DIRECTION
-GDK_TYPE_WINDOW_STATE
-GDK_TYPE_OWNER_CHANGE
-
-<SUBSECTION Private>
+GDK_TYPE_NOTIFY_TYPE
+GDK_IS_EVENT
 gdk_event_get_type
-gdk_owner_change_get_type
 </SECTION>

 <SECTION>
@@ -806,11 +720,13 @@ gdk_owner_change_get_type
 GdkTexture
 gdk_texture_new_for_data
 gdk_texture_new_for_pixbuf
+gdk_texture_new_for_gl
 gdk_texture_new_from_resource
 gdk_texture_new_from_file
 gdk_texture_get_width
 gdk_texture_get_height
 gdk_texture_download
+gdk_texture_release_gl

 <SUBSECTION Standard>
 GdkTextureClass
@@ -834,6 +750,8 @@ gdk_cursor_get_hotspot_y

 <SUBSECTION Standard>
 GDK_TYPE_CURSOR
+GDK_CURSOR
+GDK_IS_CURSOR

 <SUBSECTION Private>
 gdk_cursor_get_type
@@ -845,7 +763,6 @@ gdk_cursor_get_type
 <FILE>dnd</FILE>
 GdkDragContext
 GdkDragCancelReason
-gdk_drag_get_selection
 gdk_drop_reply
 gdk_drag_drop_done
 gdk_drag_begin
@@ -860,7 +777,6 @@ gdk_drag_context_get_suggested_action
 gdk_drag_context_get_selected_action
 gdk_drag_context_get_formats
 gdk_drag_context_get_device
-gdk_drag_context_set_device
 gdk_drag_context_get_source_window
 gdk_drag_context_get_dest_window
 gdk_drag_context_get_drag_window
@@ -930,18 +846,13 @@ gdk_x11_window_move_to_current_desktop
 gdk_x11_window_move_to_desktop
 gdk_x11_window_get_desktop
 gdk_x11_window_set_utf8_property
-gdk_x11_window_set_frame_extents
 gdk_x11_window_set_frame_sync_enabled
 gdk_x11_keymap_get_group_for_state
 gdk_x11_keymap_key_is_modifier
 gdk_x11_visual_get_xvisual
-gdk_x11_atom_to_xatom
 gdk_x11_atom_to_xatom_for_display
-gdk_x11_xatom_to_atom
 gdk_x11_xatom_to_atom_for_display
-gdk_x11_get_xatom_by_name
 gdk_x11_get_xatom_by_name_for_display
-gdk_x11_get_xatom_name
 gdk_x11_get_xatom_name_for_display
 gdk_x11_set_sm_client_id
 gdk_x11_display_text_property_to_text_list
@@ -1140,9 +1051,21 @@ gdk_frame_clock_get_history_start
 gdk_frame_clock_get_timings
 gdk_frame_clock_get_current_timings
 gdk_frame_clock_get_refresh_info
+
 <SUBSECTION Private>
+GDK_FRAME_CLOCK
+GDK_FRAME_CLOCK_CLASS
+GDK_FRAME_CLOCK_GET_CLASS
+GDK_FRAME_CLOCK_IDLE
+GDK_FRAME_CLOCK_IDLE_CLASS
+GDK_FRAME_CLOCK_IDLE_GET_CLASS
+GDK_IS_FRAME_CLOCK
+GDK_IS_FRAME_CLOCK_CLASS
+GDK_IS_FRAME_CLOCK_IDLE
+GDK_IS_FRAME_CLOCK_IDLE_CLASS
 GdkFrameClockPrivate
 gdk_frame_clock_get_type
+gdk_frame_clock_idle_get_type
 </SECTION>

 <SECTION>
@@ -1158,7 +1081,7 @@ gdk_frame_timings_get_presentation_time
 gdk_frame_timings_get_refresh_interval
 gdk_frame_timings_get_predicted_presentation_time
 <SUBSECTION Private>
-gdk_frame_get_type
+gdk_frame_timings_get_type
 </SECTION>

 <SECTION>
@@ -1256,6 +1179,9 @@ gdk_drawing_context_get_paint_context
 gdk_drawing_context_get_type
 GdkDrawingContextClass
 GDK_TYPE_DRAWING_CONTEXT
+GDK_DRAWING_CONTEXT_CLASS
+GDK_DRAWING_CONTEXT_GET_CLASS
+GDK_IS_DRAWING_CONTEXT_CLASS
 GDK_DRAWING_CONTEXT
 GDK_IS_DRAWING_CONTEXT
 </SECTION>
@@ -1325,6 +1251,11 @@ gdk_content_provider_write_mime_type_finish
 gdk_content_provider_get_value

 <SUBSECTION Standard>
+GDK_CONTENT_PROVIDER
+GDK_CONTENT_PROVIDER_CLASS
+GDK_CONTENT_PROVIDER_GET_CLASS
+GDK_IS_CONTENT_PROVIDER
+GDK_IS_CONTENT_PROVIDER_CLASS
 GdkContentProviderClass
 gdk_content_provider_get_type
 </SECTION>
--- a/docs/reference/gdk/images/X_cursor.png
+++ b/docs/reference/gdk/images/X_cursor.png
--- a/docs/reference/gdk/images/arrow.png
+++ b/docs/reference/gdk/images/arrow.png
--- a/docs/reference/gdk/images/based_arrow_down.png
+++ b/docs/reference/gdk/images/based_arrow_down.png
--- a/docs/reference/gdk/images/based_arrow_up.png
+++ b/docs/reference/gdk/images/based_arrow_up.png
--- a/docs/reference/gdk/images/boat.png
+++ b/docs/reference/gdk/images/boat.png
--- a/docs/reference/gdk/images/bogosity.png
+++ b/docs/reference/gdk/images/bogosity.png
--- a/docs/reference/gdk/images/bottom_left_corner.png
+++ b/docs/reference/gdk/images/bottom_left_corner.png
--- a/docs/reference/gdk/images/bottom_right_corner.png
+++ b/docs/reference/gdk/images/bottom_right_corner.png
--- a/docs/reference/gdk/images/bottom_side.png
+++ b/docs/reference/gdk/images/bottom_side.png
--- a/docs/reference/gdk/images/bottom_tee.png
+++ b/docs/reference/gdk/images/bottom_tee.png
--- a/docs/reference/gdk/images/box_spiral.png
+++ b/docs/reference/gdk/images/box_spiral.png
--- a/docs/reference/gdk/images/center_ptr.png
+++ b/docs/reference/gdk/images/center_ptr.png
--- a/docs/reference/gdk/images/circle.png
+++ b/docs/reference/gdk/images/circle.png
--- a/docs/reference/gdk/images/clock.png
+++ b/docs/reference/gdk/images/clock.png
--- a/docs/reference/gdk/images/coffee_mug.png
+++ b/docs/reference/gdk/images/coffee_mug.png
--- a/docs/reference/gdk/images/cross.png
+++ b/docs/reference/gdk/images/cross.png
--- a/docs/reference/gdk/images/cross_reverse.png
+++ b/docs/reference/gdk/images/cross_reverse.png
--- a/docs/reference/gdk/images/crosshair.png
+++ b/docs/reference/gdk/images/crosshair.png
--- a/docs/reference/gdk/images/diamond_cross.png
+++ b/docs/reference/gdk/images/diamond_cross.png
--- a/docs/reference/gdk/images/dot.png
+++ b/docs/reference/gdk/images/dot.png
--- a/docs/reference/gdk/images/dotbox.png
+++ b/docs/reference/gdk/images/dotbox.png
--- a/docs/reference/gdk/images/double_arrow.png
+++ b/docs/reference/gdk/images/double_arrow.png
--- a/docs/reference/gdk/images/draft_large.png
+++ b/docs/reference/gdk/images/draft_large.png
--- a/docs/reference/gdk/images/draft_small.png
+++ b/docs/reference/gdk/images/draft_small.png
--- a/docs/reference/gdk/images/draped_box.png
+++ b/docs/reference/gdk/images/draped_box.png
--- a/docs/reference/gdk/images/exchange.png
+++ b/docs/reference/gdk/images/exchange.png
--- a/docs/reference/gdk/images/fleur.png
+++ b/docs/reference/gdk/images/fleur.png
--- a/docs/reference/gdk/images/gobbler.png
+++ b/docs/reference/gdk/images/gobbler.png
--- a/docs/reference/gdk/images/gumby.png
+++ b/docs/reference/gdk/images/gumby.png
--- a/docs/reference/gdk/images/hand1.png
+++ b/docs/reference/gdk/images/hand1.png
--- a/docs/reference/gdk/images/hand2.png
+++ b/docs/reference/gdk/images/hand2.png
--- a/docs/reference/gdk/images/hand_cursor.png
+++ b/docs/reference/gdk/images/hand_cursor.png
--- a/docs/reference/gdk/images/heart.png
+++ b/docs/reference/gdk/images/heart.png
--- a/docs/reference/gdk/images/icon.png
+++ b/docs/reference/gdk/images/icon.png
--- a/docs/reference/gdk/images/iron_cross.png
+++ b/docs/reference/gdk/images/iron_cross.png
--- a/docs/reference/gdk/images/left_ptr.png
+++ b/docs/reference/gdk/images/left_ptr.png
--- a/docs/reference/gdk/images/left_side.png
+++ b/docs/reference/gdk/images/left_side.png
--- a/docs/reference/gdk/images/left_tee.png
+++ b/docs/reference/gdk/images/left_tee.png
--- a/docs/reference/gdk/images/leftbutton.png
+++ b/docs/reference/gdk/images/leftbutton.png
--- a/docs/reference/gdk/images/ll_angle.png
+++ b/docs/reference/gdk/images/ll_angle.png
--- a/docs/reference/gdk/images/lr_angle.png
+++ b/docs/reference/gdk/images/lr_angle.png
--- a/docs/reference/gdk/images/man.png
+++ b/docs/reference/gdk/images/man.png
--- a/docs/reference/gdk/images/middlebutton.png
+++ b/docs/reference/gdk/images/middlebutton.png
--- a/docs/reference/gdk/images/mouse.png
+++ b/docs/reference/gdk/images/mouse.png
--- a/Show More
+++ b/Show More