wip: benchmarks

Keep a bitset of positions where the array contains
objects, and check those for reusable objects whenever
we need a new object.

We still keep the low-bit marking of string pointers,
so we can implement g_list_model_get_item without having
to consult the bitset.

In scrolling through the words demo, this keeps the
number of live string objects at ~200.

.gitlab-ci.yml

@@ -17,7 +17,12 @@ stages:
 # Common variables
 variables:
   COMMON_MESON_FLAGS: "--fatal-meson-warnings --werror"
+  BACKEND_FLAGS: "-Dx11-backend=true -Dwayland-backend=true -Dbroadway-backend=true -Dvulkan=yes"
+  FEATURE_FLAGS: "-Dcloudproviders=true"
   MESON_TEST_TIMEOUT_MULTIPLIER: 2
+  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora:v17"
+  FLATPAK_IMAGE: "registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master"
+  DOCS_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora-docs:v19"
 
 .only-default:
   only:
@@ -27,14 +32,14 @@ variables:
 
 style-check-diff:
   extends: .only-default
-  image: registry.gitlab.gnome.org/gnome/gtk/fedora:v17
+  image: $FEDORA_IMAGE
   stage: .pre
   allow_failure: true
   script:
     - .gitlab-ci/run-style-check-diff.sh
 
 .build-fedora-default:
-  image: registry.gitlab.gnome.org/gnome/gtk/fedora:v17
+  image: $FEDORA_IMAGE
   artifacts:
     when: always
     reports:
@@ -66,11 +71,7 @@ fedora-x86_64:
   variables:
     EXTRA_MESON_FLAGS: "--buildtype=debug --default-library=both"
   script:
-    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS}
-            -Dx11-backend=true
-            -Dwayland-backend=true
-            -Dbroadway-backend=true
-            -Dvulkan=yes
+    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
             -Dprofiler=true
             _build
     - ninja -C _build
@@ -84,11 +85,7 @@ release-build:
   variables:
     EXTRA_MESON_FLAGS: "--buildtype=release"
   script:
-    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS}
-            -Dx11-backend=true
-            -Dwayland-backend=true
-            -Dbroadway-backend=true
-            -Dvulkan=yes
+    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
             _build
     - ninja -C _build
     - .gitlab-ci/run-tests.sh _build x11
@@ -110,14 +107,14 @@ release-build:
       - subprojects/libepoxy/
       - subprojects/pango/
 
-msys2-mingw32:
+msys2-mingw64:
   extends: .mingw-defaults
   variables:
-    MSYSTEM: "MINGW32"
+    MSYSTEM: "MINGW64"
     CHERE_INVOKING: "yes"
 
 .flatpak-defaults:
-  image: registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master
+  image: $FLATPAK_IMAGE
   stage: flatpak
   allow_failure: true
   tags:
@@ -171,7 +168,7 @@ flatpak-master:icon-browser:
     APPID: org.gtk.IconBrowser4
 
 static-scan:
-  image: registry.gitlab.gnome.org/gnome/gtk/fedora:v16
+  image: $FEDORA_IMAGE
   stage: analysis
   variables:
     EXTRA_MESON_FLAGS: "--buildtype=debug"
@@ -184,7 +181,7 @@ static-scan:
   allow_failure: true
 
 reference:
-  image: registry.gitlab.gnome.org/gnome/gtk/fedora-docs:v19
+  image: $DOCS_IMAGE
   stage: docs
   variables:
     EXTRA_MESON_FLAGS: "--buildtype=release"

.gitlab-ci/run-style-check-diff.sh

@@ -4,8 +4,15 @@ set -e
 
 # We need to add a new remote for the upstream master, since this script could
 # be running in a personal fork of the repository which has out of date branches.
-git remote add upstream https://gitlab.gnome.org/GNOME/gtk.git
-git fetch upstream
+if [ "${CI_PROJECT_NAMESPACE}" != "GNOME" ]; then
+    echo "Retrieving the current upstream repository from ${CI_PROJECT_NAMESPACE}/${CI_PROJECT_NAME}..."
+    git remote add upstream https://gitlab.gnome.org/GNOME/gtk.git
+    git fetch upstream
+    ORIGIN="upstream"
+else
+    echo "Reusing the existing repository on ${CI_PROJECT_NAMESPACE}/${CI_PROJECT_NAME}"
+    ORIGIN="origin"
+fi
 
 # Work out the newest common ancestor between the detached HEAD that this CI job
 # has checked out, and the upstream target branch (which will typically be
@@ -13,7 +20,7 @@ git fetch upstream
 #
 # `${CI_MERGE_REQUEST_TARGET_BRANCH_NAME}` is only defined if we’re running in
 # a merge request pipeline; fall back to `${CI_DEFAULT_BRANCH}` otherwise.
-newest_common_ancestor_sha=$(diff --old-line-format='' --new-line-format='' <(git rev-list --first-parent "upstream/${CI_MERGE_REQUEST_TARGET_BRANCH_NAME:-${CI_DEFAULT_BRANCH}}") <(git rev-list --first-parent HEAD) | head -1)
+newest_common_ancestor_sha=$(diff --old-line-format='' --new-line-format='' <(git rev-list --first-parent "${ORIGIN}/${CI_MERGE_REQUEST_TARGET_BRANCH_NAME:-${CI_DEFAULT_BRANCH}}") <(git rev-list --first-parent HEAD) | head -1)
 git diff -U0 --no-color "${newest_common_ancestor_sha}" | .gitlab-ci/clang-format-diff.py -binary "clang-format" -p1
 exit_status=$?
 

demos/gtk-demo/constraints2.c

@@ -1,7 +1,7 @@
 /* Constraints/Interactive
  *
- * Demonstrate how constraints can be updates during
- * user interaction.
+ * Demonstrate how constraints can be updates during user interaction.
+ * The vertical edge between the buttons can be dragged with the mouse.
  */
 
 #include <glib/gi18n.h>

demos/gtk-demo/css_basics.c

@@ -94,7 +94,7 @@ do_css_basics (GtkWidget *do_widget)
 
       provider = GTK_STYLE_PROVIDER (gtk_css_provider_new ());
 
-      container = gtk_scrolled_window_new (NULL, NULL);
+      container = gtk_scrolled_window_new ();
       gtk_window_set_child (GTK_WINDOW (window), container);
       child = gtk_text_view_new_with_buffer (text);
       gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (container), child);

demos/gtk-demo/css_multiplebgs.c

@@ -132,7 +132,7 @@ do_css_multiplebgs (GtkWidget *do_widget)
 
       provider = GTK_STYLE_PROVIDER (gtk_css_provider_new ());
 
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_paned_set_end_child (GTK_PANED (paned), sw);
       child = gtk_text_view_new_with_buffer (text);
       gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), child);

demos/gtk-demo/css_pixbufs.c

@@ -101,7 +101,7 @@ do_css_pixbufs (GtkWidget *do_widget)
 
       provider = GTK_STYLE_PROVIDER (gtk_css_provider_new ());
 
-      container = gtk_scrolled_window_new (NULL, NULL);
+      container = gtk_scrolled_window_new ();
       gtk_paned_set_end_child (GTK_PANED (paned), container);
       child = gtk_text_view_new_with_buffer (text);
       gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (container), child);

demos/gtk-demo/css_shadows.c

@@ -119,7 +119,7 @@ do_css_shadows (GtkWidget *do_widget)
 
       provider = GTK_STYLE_PROVIDER (gtk_css_provider_new ());
 
-      container = gtk_scrolled_window_new (NULL, NULL);
+      container = gtk_scrolled_window_new ();
       gtk_paned_set_end_child (GTK_PANED (paned), container);
       child = gtk_text_view_new_with_buffer (text);
       gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (container), child);

demos/gtk-demo/cursors.c

@@ -1,9 +1,8 @@
 /* Cursors
  *
- * Demonstrates a useful set of available cursors. The cursors shown here are the ones
- * defined by CSS, which we assume to be available.
- *
- * The example shows creating cursors by name or from an image, with or without a fallback.
+ * Demonstrates a useful set of available cursors. The cursors shown here are the
+ * ones defined by CSS, which we assume to be available. The example shows creating
+ * cursors by name or from an image, with or without a fallback.
  */
 
 #include <gtk/gtk.h>

demos/gtk-demo/demo.gresource.xml

@@ -105,6 +105,9 @@
     <file>zoom_in_cursor.png</file>
     <file>zoom_out_cursor.png</file>
   </gresource>
+  <gresource prefix="/dnd">
+    <file>dnd.css</file>
+  </gresource>
   <gresource prefix="/fishbowl">
     <file>fishbowl.ui</file>
     <file>gtkfishbowl.c</file>
@@ -222,6 +225,7 @@
     <file>listview_minesweeper.c</file>
     <file>listview_settings.c</file>
     <file>listview_weather.c</file>
+    <file>listview_words.c</file>
     <file>list_store.c</file>
     <file>markup.c</file>
     <file>modelbutton.c</file>
@@ -296,6 +300,7 @@
   </gresource>
   <gresource prefix="/transparent">
     <file>portland-rose.jpg</file>
+    <file>bluroverlay.h</file>
     <file>bluroverlay.c</file>
   </gresource>
   <gresource prefix="/markup">

demos/gtk-demo/demotaggedentry.c

@@ -25,31 +25,36 @@
 #include <gtk/gtk.h>
 #include <gtk/gtk-a11y.h>
 
-typedef struct {
+struct _DemoTaggedEntry
+{
+  GtkWidget parent_instance;
+
   GtkWidget *box;
   GtkWidget *entry;
-} DemoTaggedEntryPrivate;
+};
+
+struct _DemoTaggedEntryClass
+{
+  GtkWidgetClass parent_class;
+};
 
 static void demo_tagged_entry_editable_init (GtkEditableInterface *iface);
 
 G_DEFINE_TYPE_WITH_CODE (DemoTaggedEntry, demo_tagged_entry, GTK_TYPE_WIDGET,
-                         G_ADD_PRIVATE (DemoTaggedEntry)
                          G_IMPLEMENT_INTERFACE (GTK_TYPE_EDITABLE, demo_tagged_entry_editable_init))
 
 static void
 demo_tagged_entry_init (DemoTaggedEntry *entry)
 {
-  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
+  entry->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+  gtk_widget_set_parent (entry->box, GTK_WIDGET (entry));
 
-  priv->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
-  gtk_widget_set_parent (priv->box, GTK_WIDGET (entry));
-
-  priv->entry = gtk_text_new ();
-  gtk_widget_set_hexpand (priv->entry, TRUE);
-  gtk_widget_set_vexpand (priv->entry, TRUE);
-  gtk_widget_set_hexpand (priv->box, FALSE);
-  gtk_widget_set_vexpand (priv->box, FALSE);
-  gtk_box_append (GTK_BOX (priv->box), priv->entry);
+  entry->entry = gtk_text_new ();
+  gtk_widget_set_hexpand (entry->entry, TRUE);
+  gtk_widget_set_vexpand (entry->entry, TRUE);
+  gtk_widget_set_hexpand (entry->box, FALSE);
+  gtk_widget_set_vexpand (entry->box, FALSE);
+  gtk_box_append (GTK_BOX (entry->box), entry->entry);
   gtk_editable_init_delegate (GTK_EDITABLE (entry));
 }
 
@@ -57,23 +62,16 @@ static void
 demo_tagged_entry_dispose (GObject *object)
 {
   DemoTaggedEntry *entry = DEMO_TAGGED_ENTRY (object);
-  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
 
-  if (priv->entry)
+  if (entry->entry)
     gtk_editable_finish_delegate (GTK_EDITABLE (entry));
 
-  g_clear_pointer (&priv->entry, gtk_widget_unparent);
-  g_clear_pointer (&priv->box, gtk_widget_unparent);
+  g_clear_pointer (&entry->entry, gtk_widget_unparent);
+  g_clear_pointer (&entry->box, gtk_widget_unparent);
 
   G_OBJECT_CLASS (demo_tagged_entry_parent_class)->dispose (object);
 }
 
-static void
-demo_tagged_entry_finalize (GObject *object)
-{
-  G_OBJECT_CLASS (demo_tagged_entry_parent_class)->finalize (object);
-}
-
 static void
 demo_tagged_entry_set_property (GObject      *object,
                                 guint         prop_id,
@@ -98,44 +96,12 @@ demo_tagged_entry_get_property (GObject    *object,
   G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 }
 
-static void
-demo_tagged_entry_measure (GtkWidget      *widget,
-                           GtkOrientation  orientation,
-                           int             for_size,
-                           int            *minimum,
-                           int            *natural,
-                           int            *minimum_baseline,
-                           int            *natural_baseline)
-{
-  DemoTaggedEntry *entry = DEMO_TAGGED_ENTRY (widget);
-  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
-
-  gtk_widget_measure (priv->box, orientation, for_size,
-                      minimum, natural,
-                      minimum_baseline, natural_baseline);
-}
-
-static void
-demo_tagged_entry_size_allocate (GtkWidget *widget,
-                                 int        width,
-                                 int        height,
-                                 int        baseline)
-{
-  DemoTaggedEntry *entry = DEMO_TAGGED_ENTRY (widget);
-  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
-
-  gtk_widget_size_allocate (priv->box,
-                            &(GtkAllocation) { 0, 0, width, height },
-                            baseline);
-}
-
 static gboolean
 demo_tagged_entry_grab_focus (GtkWidget *widget)
 {
   DemoTaggedEntry *entry = DEMO_TAGGED_ENTRY (widget);
-  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
 
-  return gtk_widget_grab_focus (priv->entry);
+  return gtk_widget_grab_focus (entry->entry);
 }
 
 static void
@@ -145,16 +111,14 @@ demo_tagged_entry_class_init (DemoTaggedEntryClass *klass)
   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 
   object_class->dispose = demo_tagged_entry_dispose;
-  object_class->finalize = demo_tagged_entry_finalize;
   object_class->get_property = demo_tagged_entry_get_property;
   object_class->set_property = demo_tagged_entry_set_property;
 
-  widget_class->measure = demo_tagged_entry_measure;
-  widget_class->size_allocate = demo_tagged_entry_size_allocate;
   widget_class->grab_focus = demo_tagged_entry_grab_focus;
- 
+
   gtk_editable_install_properties (object_class, 1);
 
+  gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT);
   gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_ENTRY_ACCESSIBLE);
   gtk_widget_class_set_css_name (widget_class, "entry");
 }
@@ -162,10 +126,7 @@ demo_tagged_entry_class_init (DemoTaggedEntryClass *klass)
 static GtkEditable *
 demo_tagged_entry_get_delegate (GtkEditable *editable)
 {
-  DemoTaggedEntry *entry = DEMO_TAGGED_ENTRY (editable);
-  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
-
-  return GTK_EDITABLE (priv->entry);
+  return GTK_EDITABLE (DEMO_TAGGED_ENTRY (editable)->entry);
 }
 
 static void
@@ -184,11 +145,9 @@ void
 demo_tagged_entry_add_tag (DemoTaggedEntry *entry,
                            GtkWidget       *tag)
 {
-  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
-
   g_return_if_fail (DEMO_IS_TAGGED_ENTRY (entry));
 
-  gtk_box_append (GTK_BOX (priv->box), tag);
+  gtk_box_append (GTK_BOX (entry->box), tag);
 }
 
 void
@@ -196,30 +155,27 @@ demo_tagged_entry_insert_tag_after (DemoTaggedEntry *entry,
                                     GtkWidget       *tag,
                                     GtkWidget       *sibling)
 {
-  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
-
   g_return_if_fail (DEMO_IS_TAGGED_ENTRY (entry));
 
   if (sibling == NULL)
-    gtk_box_append (GTK_BOX (priv->box), tag);
+    gtk_box_append (GTK_BOX (entry->box), tag);
   else
-    gtk_box_insert_child_after (GTK_BOX (priv->box), tag, sibling); 
+    gtk_box_insert_child_after (GTK_BOX (entry->box), tag, sibling);
 }
 
 void
 demo_tagged_entry_remove_tag (DemoTaggedEntry *entry,
                               GtkWidget       *tag)
 {
-  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
-
   g_return_if_fail (DEMO_IS_TAGGED_ENTRY (entry));
 
-  gtk_box_remove (GTK_BOX (priv->box), tag);
+  gtk_box_remove (GTK_BOX (entry->box), tag);
 }
 
 struct _DemoTaggedEntryTag
 {
   GtkWidget parent;
+
   GtkWidget *box;
   GtkWidget *label;
   GtkWidget *button;
@@ -250,11 +206,11 @@ static guint signals[LAST_SIGNAL] = { 0, };
 G_DEFINE_TYPE (DemoTaggedEntryTag, demo_tagged_entry_tag, GTK_TYPE_WIDGET)
 
 static void
-on_released (GtkGestureClick      *gesture,
-             int                   n_press,
-             double                x,
-             double                y,
-             DemoTaggedEntryTag   *tag)
+on_released (GtkGestureClick    *gesture,
+             int                 n_press,
+             double              x,
+             double              y,
+             DemoTaggedEntryTag *tag)
 {
   g_signal_emit (tag, signals[SIGNAL_CLICKED], 0);
 }
@@ -469,7 +425,7 @@ demo_tagged_entry_tag_set_has_close_button (DemoTaggedEntryTag *tag,
 
       image = gtk_image_new_from_icon_name ("window-close-symbolic");
       tag->button = gtk_button_new ();
-      gtk_box_append (GTK_BOX (tag->button), image);
+      gtk_button_set_child (GTK_BUTTON (tag->button), image);
       gtk_widget_set_halign (tag->button, GTK_ALIGN_CENTER);
       gtk_widget_set_valign (tag->button, GTK_ALIGN_CENTER);
       gtk_button_set_has_frame (GTK_BUTTON (tag->button), FALSE);

demos/gtk-demo/demotaggedentry.h

@@ -25,39 +25,11 @@
 
 G_BEGIN_DECLS
 
-#define DEMO_TYPE_TAGGED_ENTRY                 (demo_tagged_entry_get_type ())
-#define DEMO_TAGGED_ENTRY(obj)                 (G_TYPE_CHECK_INSTANCE_CAST ((obj), DEMO_TYPE_TAGGED_ENTRY, DemoTaggedEntry))
-#define DEMO_TAGGED_ENTRY_CLASS(klass)         (G_TYPE_CHECK_CLASS_CAST ((klass), DEMO_TYPE_TAGGED_ENTRY, DemoTaggedEntryClass))
-#define DEMO_IS_TAGGED_ENTRY(obj)              (G_TYPE_CHECK_INSTANCE_TYPE ((obj), DEMO_TYPE_TAGGED_ENTRY))
-#define DEMO_IS_TAGGED_ENTRY_CLASS(klass)      (G_TYPE_CHECK_CLASS_TYPE ((klass), DEMO_TYPE_TAGGED_ENTRY))
-#define DEMO_TAGGED_ENTRY_GET_CLASS(obj)       (G_TYPE_INSTANCE_GET_CLASS ((obj), DEMO_TYPE_TAGGED_ENTRY, DemoTaggedEntryClass))
+#define DEMO_TYPE_TAGGED_ENTRY (demo_tagged_entry_get_type ())
+G_DECLARE_FINAL_TYPE (DemoTaggedEntry, demo_tagged_entry, DEMO, TAGGED_ENTRY, GtkWidget)
 
-typedef struct _DemoTaggedEntry       DemoTaggedEntry;
-typedef struct _DemoTaggedEntryClass  DemoTaggedEntryClass;
-
-struct _DemoTaggedEntry
-{
-  GtkWidget parent;
-};
-
-struct _DemoTaggedEntryClass
-{
-  GtkWidgetClass parent_class;
-};
-
-#define DEMO_TYPE_TAGGED_ENTRY_TAG                (demo_tagged_entry_tag_get_type ())
-#define DEMO_TAGGED_ENTRY_TAG(obj)                (G_TYPE_CHECK_INSTANCE_CAST ((obj), DEMO_TYPE_TAGGED_ENTRY_TAG, DemoTaggedEntryTag))
-#define DEMO_TAGGED_ENTRY_TAG_CLASS(klass)        (G_TYPE_CHECK_CLASS_CAST ((klass), DEMO_TYPE_TAGGED_ENTRY_TAG, DemoTaggedEntryTag))
-#define DEMO_IS_TAGGED_ENTRY_TAG(obj)             (G_TYPE_CHECK_INSTANCE_TYPE ((obj), DEMO_TYPE_TAGGED_ENTRY_TAG))
-#define DEMO_IS_TAGGED_ENTRY_TAG_CLASS(klass)     (G_TYPE_CHECK_CLASS_TYPE ((klass), DEMO_TYPE_TAGGED_ENTRY_TAG))
-#define DEMO_TAGGED_ENTRY_TAG_GET_CLASS(obj)      (G_TYPE_INSTANCE_GET_CLASS ((obj), DEMO_TYPE_TAGGED_ENTRY_TAG, DemoTaggedEntryTagClass))
-
-typedef struct _DemoTaggedEntryTag       DemoTaggedEntryTag;
-typedef struct _DemoTaggedEntryTagClass  DemoTaggedEntryTagClass;
-
-
-GType           demo_tagged_entry_get_type (void) G_GNUC_CONST;
-GType           demo_tagged_entry_tag_get_type (void) G_GNUC_CONST;
+#define DEMO_TYPE_TAGGED_ENTRY_TAG (demo_tagged_entry_tag_get_type ())
+G_DECLARE_FINAL_TYPE (DemoTaggedEntryTag, demo_tagged_entry_tag, DEMO, TAGGED_ENTRY_TAG, GtkWidget)
 
 GtkWidget *     demo_tagged_entry_new     (void);
 

demos/gtk-demo/dialog.c

@@ -1,6 +1,7 @@
-/* Dialogs and Message Boxes
+/* Dialogs
  *
- * Dialog widgets are used to pop up a transient window for user feedback.
+ * Dialogs are used to pop up transient windows for information
+ * and user feedback.
  */
 
 #include <glib/gi18n.h>
@@ -21,10 +22,9 @@ message_dialog_clicked (GtkButton *button,
                                    GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
                                    GTK_MESSAGE_INFO,
                                    GTK_BUTTONS_OK_CANCEL,
-                                   "This message box has been popped up the following\n"
-                                   "number of times:");
+                                   "Test message");
   gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
-                                            "%d", i);
+                                            ngettext ("Has been shown once", "Has been shown %d times", i), i);
   g_signal_connect (dialog, "response", G_CALLBACK (gtk_window_destroy), NULL);
   gtk_widget_show (dialog);
   i++;
@@ -61,8 +61,6 @@ interactive_dialog_clicked (GtkButton *button,
 {
   GtkWidget *content_area;
   GtkWidget *dialog;
-  GtkWidget *hbox;
-  GtkWidget *image;
   GtkWidget *table;
   GtkWidget *local_entry1;
   GtkWidget *local_entry2;
@@ -71,26 +69,24 @@ interactive_dialog_clicked (GtkButton *button,
 
   dialog = gtk_dialog_new_with_buttons ("Interactive Dialog",
                                         GTK_WINDOW (window),
-                                        GTK_DIALOG_MODAL| GTK_DIALOG_DESTROY_WITH_PARENT,
-                                        _("_OK"),
-                                        GTK_RESPONSE_OK,
-                                        "_Cancel",
-                                        GTK_RESPONSE_CANCEL,
+                                        GTK_DIALOG_MODAL| GTK_DIALOG_DESTROY_WITH_PARENT|GTK_DIALOG_USE_HEADER_BAR,
+                                        _("_OK"), GTK_RESPONSE_OK,
+                                        _("_Cancel"), GTK_RESPONSE_CANCEL,
                                         NULL);
 
+  gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);
+
   content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
 
-  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 8);
-  gtk_box_append (GTK_BOX (content_area), hbox);
-
-  image = gtk_image_new_from_icon_name ("dialog-question");
-  gtk_image_set_icon_size (GTK_IMAGE (image), GTK_ICON_SIZE_LARGE);
-  gtk_box_append (GTK_BOX (hbox), image);
-
   table = gtk_grid_new ();
-  gtk_grid_set_row_spacing (GTK_GRID (table), 4);
-  gtk_grid_set_column_spacing (GTK_GRID (table), 4);
-  gtk_box_append (GTK_BOX (hbox), table);
+  gtk_widget_set_hexpand (table, TRUE);
+  gtk_widget_set_vexpand (table, TRUE);
+  gtk_widget_set_halign (table, GTK_ALIGN_CENTER);
+  gtk_widget_set_valign (table, GTK_ALIGN_CENTER);
+  gtk_box_append (GTK_BOX (content_area), table);
+  gtk_grid_set_row_spacing (GTK_GRID (table), 6);
+  gtk_grid_set_column_spacing (GTK_GRID (table), 6);
+
   label = gtk_label_new_with_mnemonic ("_Entry 1");
   gtk_grid_attach (GTK_GRID (table), label, 0, 0, 1, 1);
   local_entry1 = gtk_entry_new ();
@@ -123,7 +119,6 @@ interactive_dialog_clicked (GtkButton *button,
 GtkWidget *
 do_dialog (GtkWidget *do_widget)
 {
-  GtkWidget *frame;
   GtkWidget *vbox;
   GtkWidget *vbox2;
   GtkWidget *hbox;
@@ -136,22 +131,16 @@ do_dialog (GtkWidget *do_widget)
       window = gtk_window_new ();
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
-      gtk_window_set_title (GTK_WINDOW (window), "Dialogs and Message Boxes");
+      gtk_window_set_title (GTK_WINDOW (window), "Dialogs");
+      gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
-      frame = gtk_frame_new ("Dialogs");
-      gtk_widget_set_margin_start (frame, 8);
-      gtk_widget_set_margin_end (frame, 8);
-      gtk_widget_set_margin_top (frame, 8);
-      gtk_widget_set_margin_bottom (frame, 8);
-      gtk_window_set_child (GTK_WINDOW (window), frame);
-
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
       gtk_widget_set_margin_start (vbox, 8);
       gtk_widget_set_margin_end (vbox, 8);
       gtk_widget_set_margin_top (vbox, 8);
       gtk_widget_set_margin_bottom (vbox, 8);
-      gtk_frame_set_child (GTK_FRAME (frame), vbox);
+      gtk_window_set_child (GTK_WINDOW (window), vbox);
 
       /* Standard message dialog */
       hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 8);

demos/gtk-demo/dnd.c

@@ -38,15 +38,20 @@ set_color (CanvasItem *item,
   char *str;
   GtkStyleContext *context;
   GtkCssProvider *provider;
+  const char *old_class;
 
   str = gdk_rgba_to_string (color);
-  css = g_strdup_printf ("* { background: %s; padding: 10px; margin: 1px; }", str);
+  css = g_strdup_printf ("* { background: %s; }", str);
 
   context = gtk_widget_get_style_context (item->label);
   provider = g_object_get_data (G_OBJECT (context), "style-provider");
   if (provider)
     gtk_style_context_remove_provider (context, GTK_STYLE_PROVIDER (provider));
 
+  old_class = (const char *)g_object_get_data (G_OBJECT (item->label), "css-class");
+  if (old_class)
+    gtk_widget_remove_css_class (item->label, old_class);
+
   provider = gtk_css_provider_new ();
   gtk_css_provider_load_from_data (provider, css, -1);
   gtk_style_context_add_provider (gtk_widget_get_style_context (item->label), GTK_STYLE_PROVIDER (provider), 800);
@@ -56,6 +61,27 @@ set_color (CanvasItem *item,
   g_free (css);
 }
 
+static void
+set_css (CanvasItem *item,
+         const char *class)
+{
+  GtkStyleContext *context;
+  GtkCssProvider *provider;
+  const char *old_class;
+
+  context = gtk_widget_get_style_context (item->label);
+  provider = g_object_get_data (G_OBJECT (context), "style-provider");
+  if (provider)
+    gtk_style_context_remove_provider (context, GTK_STYLE_PROVIDER (provider));
+
+  old_class = (const char *)g_object_get_data (G_OBJECT (item->label), "css-class");
+  if (old_class)
+    gtk_widget_remove_css_class (item->label, old_class);
+
+  g_object_set_data_full (G_OBJECT (item->label), "css-class", g_strdup (class), g_free);
+  gtk_widget_add_css_class (item->label, class);
+}
+
 static gboolean
 item_drag_drop (GtkDropTarget *dest,
                 const GValue  *value,
@@ -65,7 +91,10 @@ item_drag_drop (GtkDropTarget *dest,
   GtkWidget *label = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (dest));
   CanvasItem *item = CANVAS_ITEM (gtk_widget_get_parent (gtk_widget_get_parent (label)));
 
-  set_color (item, g_value_get_boxed (value));
+  if (G_VALUE_TYPE (value) == GDK_TYPE_RGBA)
+    set_color (item, g_value_get_boxed (value));
+  else if (G_VALUE_TYPE (value) == G_TYPE_STRING)
+    set_css (item, g_value_get_string (value));
 
   return TRUE;
 }
@@ -132,11 +161,13 @@ canvas_item_init (CanvasItem *item)
   GdkRGBA rgba;
   GtkDropTarget *dest;
   GtkGesture *gesture;
+  GType types[2] = { GDK_TYPE_RGBA, G_TYPE_STRING };
 
   n_items++;
 
   text = g_strdup_printf ("Item %d", n_items);
   item->label = gtk_label_new (text);
+  gtk_widget_add_css_class (item->label, "canvasitem");
   g_free (text);
 
   item->fixed = gtk_fixed_new ();
@@ -154,7 +185,8 @@ canvas_item_init (CanvasItem *item)
 
   item->angle = 0;
 
-  dest = gtk_drop_target_new (GDK_TYPE_RGBA, GDK_ACTION_COPY);
+  dest = gtk_drop_target_new (G_TYPE_INVALID, GDK_ACTION_COPY);
+  gtk_drop_target_set_gtypes (dest, types, G_N_ELEMENTS (types));
   g_signal_connect (dest, "drop", G_CALLBACK (item_drag_drop), NULL);
   gtk_widget_add_controller (GTK_WIDGET (item->label), GTK_EVENT_CONTROLLER (dest));
 
@@ -529,6 +561,42 @@ canvas_new (void)
   return canvas;
 }
 
+static GdkContentProvider *
+css_drag_prepare (GtkDragSource *source,
+                  double         x,
+                  double         y,
+                  GtkWidget     *button)
+{
+  const char *class;
+  GdkPaintable *paintable;
+
+  class = (const char *)g_object_get_data (G_OBJECT (button), "css-class");
+
+  paintable = gtk_widget_paintable_new (button);
+  gtk_drag_source_set_icon (source, paintable, 0, 0);
+  g_object_unref (paintable);
+
+  return gdk_content_provider_new_typed (G_TYPE_STRING, class);
+}
+
+static GtkWidget *
+css_button_new (const char *class)
+{
+  GtkWidget *button;
+  GtkDragSource *source;
+
+  button = gtk_image_new ();
+  gtk_widget_set_size_request (button, 48, 32);
+  gtk_widget_add_css_class (button, class);
+  g_object_set_data (G_OBJECT (button), "css-class", (gpointer)class);
+
+  source = gtk_drag_source_new ();
+  g_signal_connect (source, "prepare", G_CALLBACK (css_drag_prepare), button);
+  gtk_widget_add_controller (button, GTK_EVENT_CONTROLLER (source));
+
+  return button;
+}
+
 static GtkWidget *window = NULL;
 
 GtkWidget *
@@ -548,10 +616,18 @@ do_dnd (GtkWidget *do_widget)
       };
       int i;
       int x, y;
+      GtkCssProvider *provider;
 
       button = gtk_color_button_new ();
       g_object_unref (g_object_ref_sink (button));
 
+      provider = gtk_css_provider_new ();
+      gtk_css_provider_load_from_resource (provider, "/dnd/dnd.css");
+      gtk_style_context_add_provider_for_display (gdk_display_get_default (),
+                                                  GTK_STYLE_PROVIDER (provider),
+                                                  800);
+      g_object_unref (provider);
+
       window = gtk_window_new ();
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
@@ -583,7 +659,7 @@ do_dnd (GtkWidget *do_widget)
           y += 100;
         }
 
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                       GTK_POLICY_AUTOMATIC,
                                       GTK_POLICY_NEVER);
@@ -606,6 +682,10 @@ do_dnd (GtkWidget *do_widget)
                                  NULL);
           gtk_box_append (GTK_BOX (box3), swatch);
         }
+
+      gtk_box_append (GTK_BOX (box3), css_button_new ("rainbow1"));
+      gtk_box_append (GTK_BOX (box3), css_button_new ("rainbow2"));
+      gtk_box_append (GTK_BOX (box3), css_button_new ("rainbow3"));
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/dnd.css

@@ -0,0 +1,37 @@
+label.canvasitem {
+  padding: 10px;
+  margin: 1px;
+}
+
+.canvasitem.rainbow1,
+image.rainbow1 {
+  background: linear-gradient(140deg,red,orange,yellow,green,blue,purple);
+}
+
+.canvasitem.rainbow2,
+image.rainbow2 {
+  animation: rainbow2 1s infinite linear;
+}
+
+@keyframes rainbow2 {
+ 0% { background: linear-gradient(0deg,red,orange,yellow,green,blue,purple); }
+ 25% { background: linear-gradient(90deg,red,orange,yellow,green,blue,purple); }
+ 50% { background: linear-gradient(180deg,red,orange,yellow,green,blue,purple); }
+ 75% { background: linear-gradient(270deg,red,orange,yellow,green,blue,purple); }
+ 100% { background: linear-gradient(360deg,red,orange,yellow,green,blue,purple); }
+}
+
+.canvasitem.rainbow3,
+image.rainbow3 {
+  animation: rainbow3 1s infinite linear;
+}
+
+@keyframes rainbow3 {
+ 0% { background: linear-gradient(140deg,red,orange,yellow,green,blue,purple); }
+ 16.6% { background: linear-gradient(140deg,purple,red,orange,yellow,green,blue); }
+ 33.2% { background: linear-gradient(140deg,blue,purple,red,orange,yellow,green); }
+ 50% { background: linear-gradient(140deg,green,blue,purple,red,orange,yellow); }
+ 66.6% { background: linear-gradient(140deg,yellow,green,blue,purple,red,orange); }
+ 83.2% { background: linear-gradient(140deg,orange,yellow,green,blue,purple,red); }
+ 100% { background: linear-gradient(140deg,red,orange,yellow,green,blue,purple); }
+}

demos/gtk-demo/dropdown.c

@@ -9,6 +9,7 @@
  * display the selected item differently from the presentation
  * in the popup.
  */
+
 #include <gtk/gtk.h>
 
 
@@ -242,7 +243,7 @@ do_dropdown (GtkWidget *do_widget)
       window = gtk_window_new ();
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
-      gtk_window_set_title (GTK_WINDOW (window), "Drop Down");
+      gtk_window_set_title (GTK_WINDOW (window), "Drop Downs");
       gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 

demos/gtk-demo/editable_cells.c

@@ -364,7 +364,7 @@ do_editable_cells (GtkWidget *do_widget)
       gtk_box_append (GTK_BOX (vbox),
                           gtk_label_new ("Shopping list (you can edit the cells!)"));
 
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_has_frame (GTK_SCROLLED_WINDOW (sw), TRUE);
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                       GTK_POLICY_AUTOMATIC,

demos/gtk-demo/entry_completion.c

@@ -1,4 +1,4 @@
-/* Entry/Entry Completion
+/* Entry/Completion
  *
  * GtkEntryCompletion provides a mechanism for adding support for
  * completion in GtkEntry.
@@ -12,22 +12,48 @@
 static GtkTreeModel *
 create_completion_model (void)
 {
+  const char *strings[] = {
+    "GNOME",
+    "gnominious",
+    "Gnomonic projection",
+    "Gnosophy",
+    "total",
+    "totally",
+    "toto",
+    "tottery",
+    "totterer",
+    "Totten trust",
+    "Tottenham hotspurs",
+    "totipotent",
+    "totipotency",
+    "totemism",
+    "totem pole",
+    "Totara",
+    "totalizer",
+    "totalizator",
+    "totalitarianism",
+    "total parenteral nutrition",
+    "total eclipse",
+    "Totipresence",
+    "Totipalmi",
+    "zombie",
+    "aæx",
+    "aæy",
+    "aæz",
+    NULL
+  };
+  int i;
   GtkListStore *store;
   GtkTreeIter iter;
 
   store = gtk_list_store_new (1, G_TYPE_STRING);
 
-  /* Append one word */
-  gtk_list_store_append (store, &iter);
-  gtk_list_store_set (store, &iter, 0, "GNOME", -1);
-
-  /* Append another word */
-  gtk_list_store_append (store, &iter);
-  gtk_list_store_set (store, &iter, 0, "total", -1);
-
-  /* And another word */
-  gtk_list_store_append (store, &iter);
-  gtk_list_store_set (store, &iter, 0, "totally", -1);
+  for (i = 0; strings[i]; i++)
+    {
+      /* Append one word */
+      gtk_list_store_append (store, &iter);
+      gtk_list_store_set (store, &iter, 0, strings[i], -1);
+    }
 
   return GTK_TREE_MODEL (store);
 }
@@ -48,7 +74,7 @@ do_entry_completion (GtkWidget *do_widget)
       window = gtk_window_new ();
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
-      gtk_window_set_title (GTK_WINDOW (window), "Entry Completion");
+      gtk_window_set_title (GTK_WINDOW (window), "Completion");
       gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
@@ -60,7 +86,7 @@ do_entry_completion (GtkWidget *do_widget)
       gtk_window_set_child (GTK_WINDOW (window), vbox);
 
       label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label), "Completion demo, try writing <b>total</b> or <b>gnome</b> for example.");
+      gtk_label_set_markup (GTK_LABEL (label), "Try writing <b>total</b> or <b>gnome</b> for example.");
       gtk_box_append (GTK_BOX (vbox), label);
 
       /* Create our entry */
@@ -81,6 +107,9 @@ do_entry_completion (GtkWidget *do_widget)
 
       /* Use model column 0 as the text column */
       gtk_entry_completion_set_text_column (completion, 0);
+
+      gtk_entry_completion_set_inline_completion (completion, TRUE);
+      gtk_entry_completion_set_inline_selection (completion, TRUE);
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/entry_undo.c

@@ -1,8 +1,8 @@
-/* Entry/Entry Undo
+/* Entry/Undo and Redo
  *
  * GtkEntry can provide basic Undo/Redo support using standard keyboard
- * accelerators such as Primary+z to undo and Primary+Shift+z to redo.
- * Additionally, Primary+y can be used to redo.
+ * accelerators such as Control+z to undo and Control+Shift+z to redo.
+ * Additionally, Control+y can be used to redo.
  *
  * Use gtk_entry_set_enable_undo() to enable undo/redo support.
  */
@@ -23,7 +23,7 @@ do_entry_undo (GtkWidget *do_widget)
       window = gtk_window_new ();
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
-      gtk_window_set_title (GTK_WINDOW (window), "Entry Undo");
+      gtk_window_set_title (GTK_WINDOW (window), "Undo and Redo");
       gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 

demos/gtk-demo/expander.c

@@ -57,7 +57,7 @@ do_expander (GtkWidget *do_widget)
 
       expander = gtk_expander_new ("Details:");
       gtk_widget_set_vexpand (expander, TRUE);
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_min_content_height (GTK_SCROLLED_WINDOW (sw), 100);
       gtk_scrolled_window_set_has_frame (GTK_SCROLLED_WINDOW (sw), TRUE);
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),

demos/gtk-demo/fixed.c

@@ -1,4 +1,4 @@
-/* Fixed layout
+/* Fixed Layout
  *
  * GtkFixed is a container that allows placing and transforming
  * widgets manually.
@@ -126,11 +126,11 @@ create_demo_window (GtkWidget *do_widget)
 
   window = gtk_window_new ();
   gtk_window_set_display (GTK_WINDOW (window),  gtk_widget_get_display (do_widget));
-  gtk_window_set_title (GTK_WINDOW (window), "Fixed layout");
+  gtk_window_set_title (GTK_WINDOW (window), "Fixed Layout");
   gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);
   g_signal_connect (window, "destroy", G_CALLBACK (close_window), NULL);
 
-  sw = gtk_scrolled_window_new (NULL, NULL);
+  sw = gtk_scrolled_window_new ();
   gtk_window_set_child (GTK_WINDOW (window), sw);
 
   fixed = gtk_fixed_new ();

demos/gtk-demo/flowbox.c

@@ -1,9 +1,8 @@
 /* Flow Box
  *
  * GtkFlowBox allows flexible and responsive grids which reflow
- * as needed and support sorting and filtering.
- *
- * The children of a GtkFlowBox are regular widgets
+ * as needed and support sorting and filtering. The children of
+ * a GtkFlowBox are regular widgets
  *
  * The dataset used here has 665 colors.
  */
@@ -728,7 +727,7 @@ do_flowbox (GtkWidget *do_widget)
       gtk_window_set_default_size (GTK_WINDOW (window), 400, 600);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
-      scrolled = gtk_scrolled_window_new (NULL, NULL);
+      scrolled = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
       flowbox = gtk_flow_box_new ();
       gtk_widget_set_valign (flowbox, GTK_ALIGN_START);

demos/gtk-demo/gtkfishbowl.c

@@ -108,10 +108,6 @@ gtk_fishbowl_measure (GtkWidget      *widget,
     {
       child = value;
 
-      if (!gtk_widget_get_visible (child->widget))
-        continue;
-
-
       if (orientation == GTK_ORIENTATION_HORIZONTAL)
         {
           gtk_widget_measure (child->widget, orientation, -1, &child_min, &child_nat, NULL, NULL);
@@ -148,9 +144,6 @@ gtk_fishbowl_size_allocate (GtkWidget *widget,
     {
       child = value;
 
-      if (!gtk_widget_get_visible (child->widget))
-        continue;
-
       gtk_widget_get_preferred_size (child->widget, &child_requisition, NULL);
       child_allocation.x = round (child->x * (width - child_requisition.width));
       child_allocation.y = round (child->y * (height - child_requisition.height));
@@ -197,17 +190,11 @@ gtk_fishbowl_remove (GtkFishbowl *fishbowl,
                      GtkWidget   *widget)
 {
   GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
-  GtkWidget *widget_bowl = GTK_WIDGET (fishbowl);
 
   if (g_hash_table_remove (priv->children, widget))
     {
-      gboolean was_visible = gtk_widget_get_visible (widget);
-
       gtk_widget_unparent (widget);
 
-      if (was_visible && gtk_widget_get_visible (widget_bowl))
-        gtk_widget_queue_resize (widget_bowl);
-
       priv->count--;
       g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_COUNT]);
     }

demos/gtk-demo/hypertext.c

@@ -260,7 +260,7 @@ do_hypertext (GtkWidget *do_widget)
       buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
       gtk_text_buffer_set_enable_undo (buffer, TRUE);
 
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                       GTK_POLICY_AUTOMATIC,
                                       GTK_POLICY_AUTOMATIC);

demos/gtk-demo/iconview.c

@@ -276,7 +276,7 @@ do_iconview (GtkWidget *do_widget)
       gtk_box_append (GTK_BOX (tool_bar), home_button);
 
 
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_has_frame (GTK_SCROLLED_WINDOW (sw), TRUE);
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                       GTK_POLICY_AUTOMATIC,

demos/gtk-demo/list_store.c

@@ -269,7 +269,7 @@ do_list_store (GtkWidget *do_widget)
       label = gtk_label_new ("This is the bug list (note: not based on real data, it would be nice to have a nice ODBC interface to bugzilla or so, though).");
       gtk_box_append (GTK_BOX (vbox), label);
 
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_has_frame (GTK_SCROLLED_WINDOW (sw), TRUE);
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                       GTK_POLICY_NEVER,

demos/gtk-demo/listbox.c

@@ -358,7 +358,7 @@ do_listbox (GtkWidget *do_widget)
       gtk_window_set_child (GTK_WINDOW (window), vbox);
       label = gtk_label_new ("Messages from GTK and friends");
       gtk_box_append (GTK_BOX (vbox), label);
-      scrolled = gtk_scrolled_window_new (NULL, NULL);
+      scrolled = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
       gtk_widget_set_vexpand (scrolled, TRUE);
       gtk_box_append (GTK_BOX (vbox), scrolled);

demos/gtk-demo/listview_applauncher.c

@@ -188,7 +188,7 @@ do_listview_applauncher (GtkWidget *do_widget)
        * because otherwise they might get too large or they might not
        * be scrollable.
        */
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_window_set_child (GTK_WINDOW (window), sw);
       gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), list);
     }

demos/gtk-demo/listview_clocks.c

@@ -3,10 +3,9 @@
  * This demo displays the time in different timezones.
  *
  * The goal is to show how to set up expressions that track changes
- * in objects and make them update widgets.
- *
- * For that, we create a GtkClock object that updates its time every
- * second and then use various ways to display that time.
+ * in objects and make them update widgets. For that, we create a
+ * GtkClock object that updates its time every second and then use
+ * various ways to display that time.
  *
  * Typically, this will be done using GtkBuilder .ui files with the
  * help of the <binding> tag, but this demo shows the code that runs
@@ -41,7 +40,8 @@ enum {
 
 /* This function returns the current time in the clock's timezone.
  * Note that this returns a new object every time, so we need to
- * remember to unref it after use. */
+ * remember to unref it after use.
+ */
 static GDateTime *
 gtk_clock_get_time (GtkClock *clock)
 {
@@ -51,10 +51,11 @@ gtk_clock_get_time (GtkClock *clock)
     return g_date_time_new_now_local ();
 }
 
-/* Here, we implement the functionality required by the GdkPaintable interface.
- * This way we have a trivial way to display an analog clock.
- * It also allows demonstrating how to directly use objects in the listview
- * later by making this object do something interesting. */
+/* Here, we implement the functionality required by the GdkPaintable
+ * interface. This way we have a trivial way to display an analog clock.
+ * It also allows demonstrating how to directly use objects in the
+ * listview later by making this object do something interesting.
+ */
 static void
 gtk_clock_snapshot (GdkPaintable *paintable,
                     GdkSnapshot  *snapshot,
@@ -68,26 +69,31 @@ gtk_clock_snapshot (GdkPaintable *paintable,
 #define BLACK ((GdkRGBA) { 0, 0, 0, 1 })
 
   /* save/restore() is necessary so we can undo the transforms we start
-   * out with. */
+   * out with.
+   */
   gtk_snapshot_save (snapshot);
 
   /* First, we move the (0, 0) point to the center of the area so
-   * we can draw everything relative to it. */
+   * we can draw everything relative to it.
+   */
   gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (width / 2, height / 2));
+
   /* Next we scale it, so that we can pretend that the clock is
    * 100px in size. That way, we don't need to do any complicated
-   * math later.
-   * We use MIN() here so that we use the smaller dimension for sizing.
-   * That way we don't overdraw but keep the aspect ratio. */
+   * math later. We use MIN() here so that we use the smaller
+   * dimension for sizing. That way we don't overdraw but keep
+   * the aspect ratio.
+   */
   gtk_snapshot_scale (snapshot, MIN (width, height) / 100.0, MIN (width, height) / 100.0);
-  /* Now we have a circle with diameter 100px (and radius 50px) that
-   * has its (0, 0) point at the center.
-   * Let's draw a simple clock into it. */
 
+  /* Now we have a circle with diameter 100px (and radius 50px) that
+   * has its (0, 0) point at the center. Let's draw a simple clock into it.
+   */
   time = gtk_clock_get_time (self);
 
   /* First, draw a circle. This is a neat little trick to draw a circle
-   * without requiring Cairo. */
+   * without requiring Cairo.
+   */
   gsk_rounded_rect_init_from_rect (&outline, &GRAPHENE_RECT_INIT(-50, -50, 100, 100), 50);
   gtk_snapshot_append_border (snapshot,
                               &outline,
@@ -95,9 +101,11 @@ gtk_clock_snapshot (GdkPaintable *paintable,
                               (GdkRGBA [4]) { BLACK, BLACK, BLACK, BLACK });
 
   /* Next, draw the hour hand.
-   * We do this using tranforms again: Instead of computing where the angle points
-   * to, we just rotate everything and then draw the hand as if if was :00.
-   * We don't even need to care about am/pm here because rotations just work. */
+   * We do this using tranforms again: Instead of computing where the angle
+   * points to, we just rotate everything and then draw the hand as if it
+   * was :00. We don't even need to care about am/pm here because rotations
+   * just work.
+   */
   gtk_snapshot_save (snapshot);
   gtk_snapshot_rotate (snapshot, 30 * g_date_time_get_hour (time) + 0.5 * g_date_time_get_minute (time));
   gsk_rounded_rect_init_from_rect (&outline, &GRAPHENE_RECT_INIT(-2, -23, 4, 25), 2);
@@ -107,7 +115,8 @@ gtk_clock_snapshot (GdkPaintable *paintable,
   gtk_snapshot_restore (snapshot);
 
   /* And the same as above for the minute hand. Just make this one longer
-   * so people can tell the hands apart. */
+   * so people can tell the hands apart.
+   */
   gtk_snapshot_save (snapshot);
   gtk_snapshot_rotate (snapshot, 6 * g_date_time_get_minute (time));
   gsk_rounded_rect_init_from_rect (&outline, &GRAPHENE_RECT_INIT(-2, -43, 4, 45), 2);
@@ -125,8 +134,9 @@ gtk_clock_snapshot (GdkPaintable *paintable,
   gtk_snapshot_pop (snapshot);
   gtk_snapshot_restore (snapshot);
 
-  /* And finally, don't forget to restore the initial save() that we did for
-   * the initial transformations. */
+  /* And finally, don't forget to restore the initial save() that
+   * we did for the initial transformations.
+   */
   gtk_snapshot_restore (snapshot);
 
   g_date_time_unref (time);
@@ -145,10 +155,9 @@ gtk_clock_get_intrinsic_height (GdkPaintable *paintable)
   return 100;
 }
 
-/* Initialize the paintable interface. This way we turn our clock objects
- * into objects that can be drawn.
- * There are more functions to this interface to define desired size,
- * but this is enough.
+/* Initialize the paintable interface. This way we turn our clocks
+ * into objects that can be drawn. There are more functions to this
+ * interface to define desired size, but this is enough.
  */
 static void
 gtk_clock_paintable_init (GdkPaintableInterface *iface)
@@ -158,8 +167,9 @@ gtk_clock_paintable_init (GdkPaintableInterface *iface)
   iface->get_intrinsic_height = gtk_clock_get_intrinsic_height;
 }
 
-/* Finally, we define the type. The important part is adding the paintable
- * interface, so GTK knows that this object can indeed be drawm.
+/* Finally, we define the type. The important part is adding the
+ * paintable interface, so GTK knows that this object can indeed
+ * be drawn.
  */
 G_DEFINE_TYPE_WITH_CODE (GtkClock, gtk_clock, G_TYPE_OBJECT,
                          G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
@@ -221,11 +231,14 @@ gtk_clock_set_property (GObject      *object,
 
 /* This is the list of all the ticking clocks */
 static GSList *ticking_clocks = NULL;
-/* This is the id of the timeout source that is updating all ticking clocks */
+
+/* This is the ID of the timeout source that is updating all
+ * ticking clocks.
+ */
 static guint ticking_clock_id = 0;
 
-/* Every second, this function is called to tell everybody that the
- * clocks are ticking.
+/* Every second, this function is called to tell everybody that
+ * the clocks are ticking.
  */
 static gboolean
 gtk_clock_tick (gpointer unused)
@@ -236,10 +249,11 @@ gtk_clock_tick (gpointer unused)
     {
       GtkClock *clock = l->data;
 
-      /* We will now return a different value for the time porperty,
+      /* We will now return a different value for the time property,
        * so notify about that.
        */
       g_object_notify_by_pspec (G_OBJECT (clock), properties[PROP_TIME]);
+
       /* We will also draw the hands of the clock differently.
        * So notify about that, too.
        */
@@ -309,16 +323,16 @@ gtk_clock_init (GtkClock *self)
 
 static GtkClock *
 gtk_clock_new (const char *location,
-               GTimeZone  *_timezone)
+               GTimeZone  *_tz)
 {
   GtkClock *result;
 
   result = g_object_new (GTK_TYPE_CLOCK,
                          "location", location,
-                         "timezone", _timezone,
+                         "timezone", _tz,
                          NULL);
 
-  g_clear_pointer (&_timezone, g_time_zone_unref);
+  g_clear_pointer (&_tz, g_time_zone_unref);
 
   return result;
 }
@@ -343,6 +357,9 @@ create_clocks_model (void)
   clock = gtk_clock_new ("San Francisco", g_time_zone_new ("America/Los_Angeles"));
   g_list_store_append (result, clock);
   g_object_unref (clock);
+  clock = gtk_clock_new ("Xalapa", g_time_zone_new ("America/Mexico_City"));
+  g_list_store_append (result, clock);
+  g_object_unref (clock);
   clock = gtk_clock_new ("Boston", g_time_zone_new ("America/New_York"));
   g_list_store_append (result, clock);
   g_object_unref (clock);
@@ -457,7 +474,7 @@ do_listview_clocks (GtkWidget *do_widget)
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *) &window);
 
       /* List widgets go into a scrolled window. Always. */
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_window_set_child (GTK_WINDOW (window), sw);
 
       /* Create the factory that creates the listitems. Because we

demos/gtk-demo/listview_colors.c

@@ -1,12 +1,17 @@
 /* Lists/Colors
  *
- * This demo displays a list of named colors.
+ * This demo displays a grid of colors.
  *
  * It is using a GtkGridView, and shows how to display
  * and sort the data in various ways. The controls for
  * this are implemented using GtkDropDown.
  *
- * The dataset used here has 9283 items.
+ * The dataset used here has up to 16 777 216 items.
+ *
+ * Note that this demo also functions as a performance
+ * test for some of the list model machinery, and the
+ * biggest sizes here can lock up the application for
+ * extended times when used with sorting.
  */
 
 #include <gtk/gtk.h>
@@ -23,9 +28,8 @@ struct _GtkColor
   GObject parent_instance;
 
   char *name;
-  GdkRGBA *color;
+  GdkRGBA color;
   int h, s, v;
-  gboolean selected;
 };
 
 enum {
@@ -38,9 +42,8 @@ enum {
   PROP_HUE,
   PROP_SATURATION,
   PROP_VALUE,
-  PROP_SELECTED,
 
-  N_PROPS
+  N_COLOR_PROPS
 };
 
 static void
@@ -51,7 +54,7 @@ gtk_color_snapshot (GdkPaintable *paintable,
 {
   GtkColor *self = GTK_COLOR (paintable);
 
-  gtk_snapshot_append_color (snapshot, self->color, &GRAPHENE_RECT_INIT (0, 0, width, height));
+  gtk_snapshot_append_color (snapshot, &self->color, &GRAPHENE_RECT_INIT (0, 0, width, height));
 }
 
 static int
@@ -82,7 +85,82 @@ G_DEFINE_TYPE_WITH_CODE (GtkColor, gtk_color, G_TYPE_OBJECT,
                          G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
                                                 gtk_color_paintable_init))
 
-static GParamSpec *properties[N_PROPS] = { NULL, };
+static GParamSpec *color_properties[N_COLOR_PROPS] = { NULL, };
+
+static void
+rgb_to_hsv (GdkRGBA *rgba,
+            gdouble *h_out,
+            gdouble *s_out,
+            gdouble *v_out)
+{
+  gdouble red, green, blue;
+  gdouble h, s, v;
+  gdouble min, max;
+  gdouble delta;
+
+  red = rgba->red;
+  green = rgba->green;
+  blue = rgba->blue;
+
+  h = 0.0;
+
+  if (red > green)
+    {
+      if (red > blue)
+        max = red;
+      else
+        max = blue;
+
+      if (green < blue)
+        min = green;
+      else
+        min = blue;
+    }
+  else
+    {
+      if (green > blue)
+        max = green;
+      else
+        max = blue;
+
+      if (red < blue)
+        min = red;
+      else
+        min = blue;
+    }
+
+  v = max;
+
+  if (max != 0.0)
+    s = (max - min) / max;
+  else
+    s = 0.0;
+
+  if (s == 0.0)
+    h = 0.0;
+  else
+    {
+      delta = max - min;
+
+      if (red == max)
+        h = (green - blue) / delta;
+      else if (green == max)
+        h = 2 + (blue - red) / delta;
+      else if (blue == max)
+        h = 4 + (red - green) / delta;
+
+      h /= 6.0;
+
+      if (h < 0.0)
+        h += 1.0;
+      else if (h > 1.0)
+        h -= 1.0;
+    }
+
+  *h_out = h;
+  *s_out = s;
+  *v_out = v;
+}
 
 static void
 gtk_color_get_property (GObject    *object,
@@ -99,19 +177,19 @@ gtk_color_get_property (GObject    *object,
       break;
 
     case PROP_COLOR:
-      g_value_set_boxed (value, self->color);
+      g_value_set_boxed (value, &self->color);
       break;
 
     case PROP_RED:
-      g_value_set_float (value, self->color->red);
+      g_value_set_float (value, self->color.red);
       break;
 
     case PROP_GREEN:
-      g_value_set_float (value, self->color->green);
+      g_value_set_float (value, self->color.green);
       break;
 
     case PROP_BLUE:
-      g_value_set_float (value, self->color->blue);
+      g_value_set_float (value, self->color.blue);
       break;
 
     case PROP_HUE:
@@ -126,10 +204,6 @@ gtk_color_get_property (GObject    *object,
       g_value_set_int (value, self->v);
       break;
 
-    case PROP_SELECTED:
-      g_value_set_boolean (value, self->selected);
-      break;
-
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
       break;
@@ -143,6 +217,7 @@ gtk_color_set_property (GObject      *object,
                         GParamSpec   *pspec)
 {
   GtkColor *self = GTK_COLOR (object);
+  double h, s, v;
 
   switch (property_id)
     {
@@ -151,23 +226,11 @@ gtk_color_set_property (GObject      *object,
       break;
 
     case PROP_COLOR:
-      self->color = g_value_dup_boxed (value);
-      break;
-
-    case PROP_HUE:
-      self->h = g_value_get_int (value);
-      break;
-
-    case PROP_SATURATION:
-      self->s = g_value_get_int (value);
-      break;
-
-    case PROP_VALUE:
-      self->v = g_value_get_int (value);
-      break;
-
-    case PROP_SELECTED:
-      self->selected = g_value_get_boolean (value);
+      self->color = *(GdkRGBA *) g_value_dup_boxed (value);
+      rgb_to_hsv (&self->color, &h, &s, &v);
+      self->h = round (360 * h);
+      self->s = round (100 * s);
+      self->v = round (100 * v);
       break;
 
     default:
@@ -182,7 +245,6 @@ gtk_color_finalize (GObject *object)
   GtkColor *self = GTK_COLOR (object);
 
   g_free (self->name);
-  g_clear_pointer (&self->color, gdk_rgba_free);
 
   G_OBJECT_CLASS (gtk_color_parent_class)->finalize (object);
 }
@@ -196,26 +258,24 @@ gtk_color_class_init (GtkColorClass *klass)
   gobject_class->set_property = gtk_color_set_property;
   gobject_class->finalize = gtk_color_finalize;
 
-  properties[PROP_NAME] =
+  color_properties[PROP_NAME] =
     g_param_spec_string ("name", NULL, NULL, NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
-  properties[PROP_COLOR] =
+  color_properties[PROP_COLOR] =
     g_param_spec_boxed ("color", NULL, NULL, GDK_TYPE_RGBA, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
-  properties[PROP_RED] =
+  color_properties[PROP_RED] =
     g_param_spec_float ("red", NULL, NULL, 0, 1, 0, G_PARAM_READABLE);
-  properties[PROP_GREEN] =
+  color_properties[PROP_GREEN] =
     g_param_spec_float ("green", NULL, NULL, 0, 1, 0, G_PARAM_READABLE);
-  properties[PROP_BLUE] =
+  color_properties[PROP_BLUE] =
     g_param_spec_float ("blue", NULL, NULL, 0, 1, 0, G_PARAM_READABLE);
-  properties[PROP_HUE] =
-    g_param_spec_int ("hue", NULL, NULL, 0, 360, 0, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
-  properties[PROP_SATURATION] =
-    g_param_spec_int ("saturation", NULL, NULL, 0, 100, 0, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
-  properties[PROP_VALUE] =
-    g_param_spec_int ("value", NULL, NULL, 0, 100, 0, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
-  properties[PROP_SELECTED] =
-    g_param_spec_boolean ("selected", NULL, NULL, FALSE, G_PARAM_READWRITE);
+  color_properties[PROP_HUE] =
+    g_param_spec_int ("hue", NULL, NULL, 0, 360, 0, G_PARAM_READABLE);
+  color_properties[PROP_SATURATION] =
+    g_param_spec_int ("saturation", NULL, NULL, 0, 100, 0, G_PARAM_READABLE);
+  color_properties[PROP_VALUE] =
+    g_param_spec_int ("value", NULL, NULL, 0, 100, 0, G_PARAM_READABLE);
 
-  g_object_class_install_properties (gobject_class, N_PROPS, properties);
+  g_object_class_install_properties (gobject_class, N_COLOR_PROPS, color_properties);
 }
 
 static void
@@ -225,8 +285,7 @@ gtk_color_init (GtkColor *self)
 
 static GtkColor *
 gtk_color_new (const char *name,
-               float r, float g, float b,
-               int h, int s, int v)
+               float r, float g, float b)
 {
   GtkColor *result;
   GdkRGBA color = { r, g, b, 1.0 };
@@ -234,24 +293,206 @@ gtk_color_new (const char *name,
   result = g_object_new (GTK_TYPE_COLOR,
                          "name", name,
                          "color", &color,
-                         "hue", h,
-                         "saturation", s,
-                         "value", v,
                          NULL);
 
   return result;
 }
 
-static GListModel *
-create_colors_model (void)
+#define N_COLORS (256 * 256 * 256)
+
+#define GTK_TYPE_COLOR_LIST (gtk_color_list_get_type ())
+G_DECLARE_FINAL_TYPE (GtkColorList, gtk_color_list, GTK, COLOR_LIST, GObject)
+
+enum {
+  LIST_PROP_0,
+  LIST_PROP_SIZE,
+
+  N_LIST_PROPS
+};
+
+typedef struct _GtkColorList GtkColorList;
+struct _GtkColorList
+{
+  GObject parent_instance;
+
+  GtkColor **colors; /* Always N_COLORS */
+
+  guint size; /* How many colors we allow */
+};
+
+static GType
+gtk_color_list_get_item_type (GListModel *list)
+{
+  return GTK_TYPE_COLOR;
+}
+
+static guint
+gtk_color_list_get_n_items (GListModel *list)
+{
+  GtkColorList *self = GTK_COLOR_LIST (list);
+
+  return self->size;
+}
+
+static guint
+position_to_color (guint position)
+{
+  static guint map[] = {
+    0xFF0000, 0x00FF00, 0x0000FF,
+    0x7F0000, 0x007F00, 0x00007F,
+    0x3F0000, 0x003F00, 0x00003F,
+    0x1F0000, 0x001F00, 0x00001F,
+    0x0F0000, 0x000F00, 0x00000F,
+    0x070000, 0x000700, 0x000007,
+    0x030000, 0x000300, 0x000003,
+    0x010000, 0x000100, 0x000001
+  };
+  guint result, i;
+
+  result = 0;
+
+  for (i = 0; i < G_N_ELEMENTS (map); i++)
+    {
+      if (position & (1 << i))
+        result ^= map[i];
+    }
+
+  return result;
+}
+
+static gpointer
+gtk_color_list_get_item (GListModel *list,
+                         guint       position)
+{
+  GtkColorList *self = GTK_COLOR_LIST (list);
+
+  if (position >= self->size)
+    return NULL;
+
+  position = position_to_color (position);
+
+  if (self->colors[position] == NULL)
+    {
+      guint red, green, blue;
+
+      red = (position >> 16) & 0xFF;
+      green = (position >> 8) & 0xFF;
+      blue = position & 0xFF;
+
+      self->colors[position] = gtk_color_new ("", red / 255., green / 255., blue / 255.);
+    }
+
+  return g_object_ref (self->colors[position]);
+}
+
+static void
+gtk_color_list_model_init (GListModelInterface *iface)
+{
+  iface->get_item_type = gtk_color_list_get_item_type;
+  iface->get_n_items = gtk_color_list_get_n_items;
+  iface->get_item = gtk_color_list_get_item;
+}
+
+G_DEFINE_TYPE_WITH_CODE (GtkColorList, gtk_color_list, G_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL,
+                                                gtk_color_list_model_init))
+
+static GParamSpec *list_properties[N_LIST_PROPS] = { NULL, };
+
+static void
+gtk_color_list_get_property (GObject    *object,
+                             guint       property_id,
+                             GValue     *value,
+                             GParamSpec *pspec)
+{
+  GtkColorList *self = GTK_COLOR_LIST (object);
+
+  switch (property_id)
+    {
+    case LIST_PROP_SIZE:
+      g_value_set_uint (value, self->size);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_color_list_set_size (GtkColorList *self,
+                         guint         size)
+{
+  guint old_size = self->size;
+
+  self->size = size;
+  if (self->size > old_size)
+    g_list_model_items_changed (G_LIST_MODEL (self), old_size, 0, self->size - old_size);
+  else if (old_size > self->size)
+    g_list_model_items_changed (G_LIST_MODEL (self), self->size, old_size - self->size, 0);
+
+  g_object_notify_by_pspec (G_OBJECT (self), list_properties[LIST_PROP_SIZE]);
+}
+
+static void
+gtk_color_list_set_property (GObject      *object,
+                             guint         property_id,
+                             const GValue *value,
+                             GParamSpec   *pspec)
+{
+  GtkColorList *self = GTK_COLOR_LIST (object);
+
+  switch (property_id)
+    {
+    case LIST_PROP_SIZE:
+      gtk_color_list_set_size (self, g_value_get_uint (value));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_color_list_dispose (GObject *object)
+{
+  GtkColorList *self = GTK_COLOR_LIST (object);
+  guint i;
+
+  for (i = 0; i < N_COLORS; i++)
+    {
+      g_clear_object (&self->colors[i]);
+    }
+  g_free (self->colors);
+
+  G_OBJECT_CLASS (gtk_color_parent_class)->finalize (object);
+}
+
+static void
+gtk_color_list_class_init (GtkColorListClass *klass)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+  gobject_class->get_property = gtk_color_list_get_property;
+  gobject_class->set_property = gtk_color_list_set_property;
+  gobject_class->dispose = gtk_color_list_dispose;
+
+  list_properties[LIST_PROP_SIZE] =
+    g_param_spec_uint ("size", NULL, NULL, 0, N_COLORS, 0, G_PARAM_READWRITE);
+
+  g_object_class_install_properties (gobject_class, N_LIST_PROPS, list_properties);
+}
+
+static void
+gtk_color_list_init (GtkColorList *self)
 {
-  GListStore *result;
-  GtkColor *color;
   GBytes *data;
   char **lines;
   guint i;
 
-  result = g_list_store_new (GTK_TYPE_COLOR);
+  self->colors = g_new0 (GtkColor *, N_COLORS);
+
   data = g_resources_lookup_data ("/listview_colors/color.names.txt", 0, NULL);
   lines = g_strsplit (g_bytes_get_data (data, NULL), "\n", 0);
 
@@ -260,7 +501,7 @@ create_colors_model (void)
       const char *name;
       char **fields;
       int red, green, blue;
-      int h, s, v;
+      guint pos;
 
       if (lines[i][0] == '#' || lines[i][0] == '\0')
         continue;
@@ -270,21 +511,24 @@ create_colors_model (void)
       red = atoi (fields[3]);
       green = atoi (fields[4]);
       blue = atoi (fields[5]);
-      h = atoi (fields[9]);
-      s = atoi (fields[10]);
-      v = atoi (fields[11]);
 
-      color = gtk_color_new (name, red / 255., green / 255., blue / 255., h, s, v);
-      g_list_store_append (result, color);
-      g_object_unref (color);
+      pos = ((red & 0xFF) << 16) | ((green & 0xFF) << 8) | blue;
+      if (self->colors[pos] == NULL)
+        self->colors[pos] = gtk_color_new (name, red / 255., green / 255., blue / 255.);
 
       g_strfreev (fields);
     }
   g_strfreev (lines);
 
   g_bytes_unref (data);
+}
 
-  return G_LIST_MODEL (result);
+static GListModel *
+gtk_color_list_new (guint size)
+{
+  return g_object_new (GTK_TYPE_COLOR_LIST,
+                       "size", size,
+                       NULL);
 }
 
 static char *
@@ -295,9 +539,9 @@ get_rgb_markup (gpointer this,
     return NULL;
 
   return g_strdup_printf ("<b>R:</b> %d <b>G:</b> %d <b>B:</b> %d",
-                          (int)(color->color->red * 255), 
-                          (int)(color->color->green * 255),
-                          (int)(color->color->blue * 255));
+                          (int)(color->color.red * 255), 
+                          (int)(color->color.green * 255),
+                          (int)(color->color.blue * 255));
 }
 
 static char *
@@ -396,29 +640,6 @@ get_title (gpointer item)
   return g_strdup ((char *)g_object_get_data (G_OBJECT (item), "title"));
 }
 
-static gboolean
-set_item (GBinding *binding,
-          const GValue *from,
-          GValue *to,
-          gpointer data)
-{
-  GObject *source = g_binding_get_source (binding);
-  GListModel *model;
-  guint selected;
-  gpointer item;
-
-  selected = g_value_get_uint (from);
-
-  model = gtk_drop_down_get_model (GTK_DROP_DOWN (source));
-  item = g_list_model_get_item (model, selected);
-
-  g_value_set_object (to, item);
-
-  g_clear_object (&item);
-
-  return TRUE;
-}
-
 GtkWidget *
 create_color_grid (void)
 {
@@ -438,8 +659,9 @@ create_color_grid (void)
   gtk_grid_view_set_max_columns (GTK_GRID_VIEW (gridview), 24);
   gtk_grid_view_set_enable_rubberband (GTK_GRID_VIEW (gridview), TRUE);
 
-  model = G_LIST_MODEL (gtk_sort_list_model_new (create_colors_model (), NULL));
-  selection = G_LIST_MODEL (gtk_property_selection_new (model, "selected"));
+  model = G_LIST_MODEL (gtk_sort_list_model_new (gtk_color_list_new (0), NULL));
+
+  selection = G_LIST_MODEL (gtk_multi_selection_new (model));
   gtk_grid_view_set_model (GTK_GRID_VIEW (gridview), selection);
   g_object_unref (selection);
   g_object_unref (model);
@@ -447,6 +669,114 @@ create_color_grid (void)
   return gridview;
 }
 
+static gboolean
+add_colors (GtkWidget     *widget,
+            GdkFrameClock *clock,
+            gpointer       data)
+{
+  GtkColorList *colors = data;
+  guint limit;
+
+  limit = GPOINTER_TO_UINT (g_object_get_data (data, "limit"));
+  gtk_color_list_set_size (colors, MIN (limit, colors->size + MAX (1, limit / 4096)));
+  
+  if (colors->size >= limit)
+    return G_SOURCE_REMOVE;
+  else
+    return G_SOURCE_CONTINUE;
+}
+
+static void
+refill (GtkWidget    *button,
+        GtkColorList *colors)
+{
+  gtk_color_list_set_size (colors, 0);
+  gtk_widget_add_tick_callback (button, add_colors, g_object_ref (colors), g_object_unref);
+}
+ 
+static void
+limit_changed_cb (GtkDropDown  *dropdown,
+                  GParamSpec   *pspec,
+                  GtkColorList *colors)
+{
+  guint new_limit, old_limit;
+
+  old_limit = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (colors), "limit"));
+  new_limit = 1 << (3 * (gtk_drop_down_get_selected (dropdown) + 1));
+
+  g_object_set_data (G_OBJECT (colors), "limit", GUINT_TO_POINTER (new_limit));
+
+  if (old_limit == colors->size)
+    gtk_color_list_set_size (colors, new_limit);
+}
+
+static void
+limit_changed_cb2 (GtkDropDown  *dropdown,
+                   GParamSpec   *pspec,
+                   GtkLabel     *label)
+{
+  char *string;
+  int len;
+  guint limit;
+
+  limit = 1 << (3 * (gtk_drop_down_get_selected (dropdown) + 1));
+
+  string = g_strdup_printf ("%'u", limit);
+  len = g_utf8_strlen (string, -1);
+  g_free (string);
+
+  gtk_label_set_width_chars (label, len + 2); /* for " /" */
+}
+
+static void
+items_changed_cb (GListModel *model,
+                  guint       position,
+                  guint       removed,
+                  guint       added,
+                  GtkWidget  *label)
+{
+  guint n = g_list_model_get_n_items (model);
+  char *text;
+
+  text = g_strdup_printf ("%'u /", n);
+  gtk_label_set_label (GTK_LABEL (label), text);
+  g_free (text);
+}
+
+static void
+setup_number_item (GtkSignalListItemFactory *factory,
+                   GtkListItem              *item)
+{
+  GtkWidget *label;
+  PangoAttrList *attrs;
+
+  label = gtk_label_new ("");
+  gtk_label_set_xalign (GTK_LABEL (label), 1);
+
+  attrs = pango_attr_list_new ();
+  pango_attr_list_insert (attrs, pango_attr_font_features_new ("tnum"));
+  gtk_label_set_attributes (GTK_LABEL (label), attrs);
+  pango_attr_list_unref (attrs);
+
+  gtk_list_item_set_child (item, label);
+}
+
+static void
+bind_number_item (GtkSignalListItemFactory *factory,
+                  GtkListItem              *item)
+{
+  GtkWidget *label;
+  guint limit;
+  char *string;
+
+  label = gtk_list_item_get_child (item);
+
+  limit = 1 << (3 * (gtk_list_item_get_position (item) + 1));
+  string = g_strdup_printf ("%'u", limit);
+  gtk_label_set_label (GTK_LABEL (label), string);
+  g_free (string);
+}
+
 static GtkWidget *window = NULL;
 
 GtkWidget *
@@ -458,11 +788,15 @@ do_listview_colors (GtkWidget *do_widget)
       GtkListItemFactory *factory;
       GListStore *factories;
       GListModel *model;
-
       GtkSorter *sorter;
       GtkSorter *multi_sorter;
       GListStore *sorters;
       GtkExpression *expression;
+      GtkWidget *button;
+      GtkWidget *label;
+      PangoAttrList *attrs;
+      char *string;
+      guint len;
 
       window = gtk_window_new ();
       gtk_window_set_title (GTK_WINDOW (window), "Colors");
@@ -475,7 +809,7 @@ do_listview_colors (GtkWidget *do_widget)
                               gtk_widget_get_display (do_widget));
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer*)&window);
 
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_window_set_child (GTK_WINDOW (window), sw);
 
       gridview = create_color_grid ();
@@ -483,8 +817,54 @@ do_listview_colors (GtkWidget *do_widget)
       model = gtk_grid_view_get_model (GTK_GRID_VIEW (gridview));
       g_object_get (model, "model", &model, NULL);
 
+      button = gtk_button_new_with_mnemonic ("_Refill");
+      g_signal_connect (button, "clicked",
+                        G_CALLBACK (refill),
+                        gtk_sort_list_model_get_model (GTK_SORT_LIST_MODEL (model)));
+
+      gtk_header_bar_pack_start (GTK_HEADER_BAR (header), button);
+
+      label = gtk_label_new ("0 /");
+      attrs = pango_attr_list_new ();
+      pango_attr_list_insert (attrs, pango_attr_font_features_new ("tnum"));
+      gtk_label_set_attributes (GTK_LABEL (label), attrs);
+      pango_attr_list_unref (attrs);
+      string = g_strdup_printf ("%'u", 4096);
+      len = g_utf8_strlen (string, -1);
+      g_free (string);
+      gtk_label_set_width_chars (GTK_LABEL (label), len + 2);
+      gtk_label_set_xalign (GTK_LABEL (label), 1);
+
+      g_signal_connect (gtk_grid_view_get_model (GTK_GRID_VIEW (gridview)),
+                        "items-changed", G_CALLBACK (items_changed_cb), label);
+      gtk_header_bar_pack_start (GTK_HEADER_BAR (header), label);
+
+      dropdown = gtk_drop_down_new ();
+      gtk_drop_down_set_from_strings (GTK_DROP_DOWN (dropdown), (const char *[]) { "8", "64", "512", "4096", "32768", "262144", "2097152", "16777216", NULL });
+      g_signal_connect (dropdown, "notify::selected",
+                        G_CALLBACK (limit_changed_cb), 
+                        gtk_sort_list_model_get_model (GTK_SORT_LIST_MODEL (model)));
+      g_signal_connect (dropdown, "notify::selected",
+                        G_CALLBACK (limit_changed_cb2), 
+                        label);
+      factory = gtk_signal_list_item_factory_new ();
+      g_signal_connect (factory, "setup", G_CALLBACK (setup_number_item), NULL);
+      g_signal_connect (factory, "bind", G_CALLBACK (bind_number_item), NULL);
+      gtk_drop_down_set_factory (GTK_DROP_DOWN (dropdown), factory);
+      g_object_unref (factory);
+      gtk_drop_down_set_selected (GTK_DROP_DOWN (dropdown), 3); /* 4096 */
+      gtk_header_bar_pack_start (GTK_HEADER_BAR (header), dropdown);
+
       sorters = g_list_store_new (GTK_TYPE_SORTER);
 
+      /* An empty multisorter doesn't do any sorting and the sortmodel is
+       * smart enough to know that.
+       */
+      sorter = gtk_multi_sorter_new ();
+      set_title (sorter, "Unsorted");
+      g_list_store_append (sorters, sorter);
+      g_object_unref (sorter);
+
       sorter = gtk_string_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "name"));
       set_title (sorter, "Name");
       g_list_store_append (sorters, sorter);
@@ -555,11 +935,7 @@ do_listview_colors (GtkWidget *do_widget)
       gtk_drop_down_set_model (GTK_DROP_DOWN (dropdown), G_LIST_MODEL (sorters));
       g_object_unref (sorters);
 
-      g_object_bind_property_full (dropdown, "selected",
-                                   model, "sorter",
-                                   G_BINDING_SYNC_CREATE,
-                                   set_item, NULL,
-                                   NULL, NULL);
+      g_object_bind_property (dropdown, "selected-item", model, "sorter", G_BINDING_SYNC_CREATE);
 
       factories = g_list_store_new (GTK_TYPE_LIST_ITEM_FACTORY);
 
@@ -590,11 +966,7 @@ do_listview_colors (GtkWidget *do_widget)
       gtk_drop_down_set_model (GTK_DROP_DOWN (dropdown), G_LIST_MODEL (factories));
       g_object_unref (factories);
 
-      g_object_bind_property_full (dropdown, "selected",
-                                   gridview, "factory",
-                                   G_BINDING_SYNC_CREATE,
-                                   set_item, NULL,
-                                   NULL, NULL);
+      g_object_bind_property (dropdown, "selected-item", gridview, "factory", G_BINDING_SYNC_CREATE);
       g_object_unref (model);
     }
 

demos/gtk-demo/listview_settings.c

@@ -143,8 +143,9 @@ settings_key_new (GSettings          *settings,
 }
 
 static void
-item_value_changed (GtkListItem *item,
-                    GtkEntry    *entry)
+item_value_changed (GtkEditableLabel *label,
+                    GParamSpec       *pspec,
+                    GtkListItem      *item)
 {
   SettingsKey *self;
   const char *text;
@@ -152,8 +153,9 @@ item_value_changed (GtkListItem *item,
   GVariant *variant;
   GError *error = NULL;
   const char *name;
+  char *value;
 
-  text = gtk_editable_get_text (GTK_EDITABLE (entry));
+  text = gtk_editable_get_text (GTK_EDITABLE (label));
 
   g_object_get (item, "item", &self, NULL);
   g_object_unref (self);
@@ -166,17 +168,25 @@ item_value_changed (GtkListItem *item,
     {
       g_warning ("%s", error->message);
       g_clear_error (&error);
-      return;
+      goto revert;
     }
 
   if (!g_settings_schema_key_range_check (self->key, variant))
     {
       g_warning ("Not a valid value for %s", name);
-      return;
+      goto revert;
     }
 
   g_settings_set_value (self->settings, name, variant);
   g_variant_unref (variant);
+  return;
+
+revert:
+  gtk_widget_error_bell (GTK_WIDGET (label));
+
+  g_object_get (self, "value", &value, NULL);
+  gtk_editable_set_text (GTK_EDITABLE (label), value);
+  g_free (value);
 }
 
 static int

demos/gtk-demo/listview_settings.ui

@@ -113,14 +113,13 @@
 <interface>
   <template class="GtkListItem">
     <property name="child">
-      <object class="GtkEntry">
-        <signal name="activate" handler="item_value_changed" object="GtkListItem" swapped="yes"/>
-        <property name="xalign">0</property>
+      <object class="GtkEditableLabel">
         <binding name="text">
           <lookup name="value" type="SettingsKey">
             <lookup name="item">GtkListItem</lookup>
           </lookup>
         </binding>
+        <signal name="notify::label" handler="item_value_changed"/>
       </object>
     </property>
   </template>

demos/gtk-demo/listview_weather.c

@@ -11,7 +11,7 @@
  * A GtkNoSelectionModel is used to make sure no item in the list can be
  * selected. All other interactions with the items is still possible.
  *
- * The dataset used here has 70000 items.
+ * The dataset used here has 70 000 items.
  */
 
 #include <gtk/gtk.h>
@@ -70,7 +70,6 @@ gtk_weather_info_new (GDateTime      *timestamp,
     {
       result->temperature = copy_from->temperature;
       result->weather_type = copy_from->weather_type;
-      g_object_unref (copy_from);
     }
 
   return result;
@@ -78,13 +77,13 @@ gtk_weather_info_new (GDateTime      *timestamp,
 
 static GDateTime *
 parse_timestamp (const char *string,
-                 GTimeZone  *_timezone)
+                 GTimeZone  *_tz)
 {
   char *with_seconds;
   GDateTime *result;
 
   with_seconds = g_strconcat (string, ":00", NULL);
-  result = g_date_time_new_from_iso8601 (with_seconds, _timezone);
+  result = g_date_time_new_from_iso8601 (with_seconds, _tz);
   g_free (with_seconds);
 
   return result;
@@ -161,6 +160,7 @@ create_weather_model (void)
   timestamp = g_date_time_new (utc, 2011, 1, 1, 0, 0, 0);
   info = gtk_weather_info_new (timestamp, NULL);
   g_list_store_append (store, info);
+  g_object_unref (info);
 
   for (i = 0; lines[i] != NULL && *lines[i]; i++)
     {
@@ -176,6 +176,7 @@ create_weather_model (void)
           timestamp = new_timestamp;
           info = gtk_weather_info_new (timestamp, info);
           g_list_store_append (store, info);
+          g_object_unref (info);
         }
 
       info->temperature = parse_temperature (fields[1], info->temperature);
@@ -184,6 +185,7 @@ create_weather_model (void)
       g_strfreev (fields);
     }
 
+  g_date_time_unref (timestamp);
   g_strfreev (lines);
   g_bytes_unref (data);
   g_time_zone_unref (utc);
@@ -311,7 +313,7 @@ do_listview_weather (GtkWidget *do_widget)
       gtk_window_set_title (GTK_WINDOW (window), "Weather");
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *) &window);
 
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_window_set_child (GTK_WINDOW (window), sw);
       listview = create_weather_view ();
       gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), listview);

demos/gtk-demo/listview_words.c

@@ -0,0 +1,241 @@
+/* Lists/Words
+ *
+ * This demo shows filtering a long list - of words.
+ *
+ * You should have the file `/usr/share/dict/words` installed for
+ * this demo to work.
+ */
+
+#include <gtk/gtk.h>
+
+static GtkWidget *window = NULL;
+static GtkWidget *progress;
+
+const char *factory_text =
+"<?xml version='1.0' encoding='UTF-8'?>\n"
+"<interface>\n"
+"  <template class='GtkListItem'>\n"
+"    <property name='child'>\n"
+"      <object class='GtkLabel'>\n"
+"        <property name='ellipsize'>end</property>\n"
+"        <property name='xalign'>0</property>\n"
+"        <binding name='label'>\n"
+"          <lookup name='string' type='GtkStringObject'>\n"
+"            <lookup name='item'>GtkListItem</lookup>\n"
+"          </lookup>\n"
+"        </binding>\n"
+"      </object>\n"
+"    </property>\n"
+"  </template>\n"
+"</interface>\n";
+
+static void
+update_title_cb (GtkFilterListModel *model)
+{
+  guint total;
+  char *title;
+  guint pending;
+
+  total = g_list_model_get_n_items (gtk_filter_list_model_get_model (model));
+  pending = gtk_filter_list_model_get_pending (model);
+
+  title = g_strdup_printf ("%u lines", g_list_model_get_n_items (G_LIST_MODEL (model)));
+
+  gtk_widget_set_visible (progress, pending != 0);
+  gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (progress), (total - pending) / (double) total);
+  gtk_window_set_title (GTK_WINDOW (window), title);
+  g_free (title);
+}
+
+static void
+read_lines_cb (GObject      *object,
+               GAsyncResult *result,
+               gpointer      data)
+{
+  GBufferedInputStream *stream = G_BUFFERED_INPUT_STREAM (object);
+  GtkStringList *stringlist = data;
+  GError *error = NULL;
+  gsize size;
+  GPtrArray *lines;
+  gssize n_filled;
+  const char *buffer, *newline;
+
+  n_filled = g_buffered_input_stream_fill_finish (stream, result, &error);
+  if (n_filled < 0)
+    {
+      g_print ("Could not read data: %s\n", error->message);
+      g_clear_error (&error);
+      return;
+    }
+
+  buffer = g_buffered_input_stream_peek_buffer (stream, &size);
+
+  if (n_filled == 0)
+    {
+      if (size)
+        gtk_string_list_take (stringlist, g_utf8_make_valid (buffer, size));
+      return;
+    }
+
+  lines = NULL;
+  while ((newline = memchr (buffer, '\n', size)))
+    {
+      if (newline > buffer)
+        {
+          if (lines == NULL)
+            lines = g_ptr_array_new_with_free_func (g_free);
+          g_ptr_array_add (lines, g_utf8_make_valid (buffer, newline - buffer));
+        }
+      if (g_input_stream_skip (G_INPUT_STREAM (stream), newline - buffer + 1, NULL, &error) < 0)
+        {
+          g_clear_error (&error);
+          break;
+        }
+      buffer = g_buffered_input_stream_peek_buffer (stream, &size);
+    }
+  if (lines == NULL)
+    {
+      g_buffered_input_stream_set_buffer_size (stream, g_buffered_input_stream_get_buffer_size (stream) + 4096);
+    }
+  else
+    {
+      g_ptr_array_add (lines, NULL);
+      gtk_string_list_splice (stringlist, g_list_model_get_n_items (G_LIST_MODEL (stringlist)), 0, (const char **) lines->pdata);
+      g_ptr_array_free (lines, TRUE);
+    }
+
+  g_buffered_input_stream_fill_async (stream, -1, G_PRIORITY_HIGH_IDLE, NULL, read_lines_cb, data);
+}
+               
+static void
+file_is_open_cb (GObject      *file,
+                 GAsyncResult *result,
+                 gpointer      data)
+{
+  GError *error = NULL;
+  GFileInputStream *file_stream;
+  GBufferedInputStream *stream;
+
+  file_stream = g_file_read_finish (G_FILE (file), result, &error);
+  if (file_stream == NULL)
+    {
+      g_print ("Could not open file: %s\n", error->message);
+      g_error_free (error);
+      return;
+    }
+
+  stream = G_BUFFERED_INPUT_STREAM (g_buffered_input_stream_new (G_INPUT_STREAM (file_stream)));
+  g_buffered_input_stream_fill_async (stream, -1, G_PRIORITY_HIGH_IDLE, NULL, read_lines_cb, data);
+  g_object_unref (stream);
+}
+
+static void
+load_file (GtkStringList *list,
+           GFile         *file)
+{
+  gtk_string_list_splice (list, 0, g_list_model_get_n_items (G_LIST_MODEL (list)), NULL);
+  g_file_read_async (file, G_PRIORITY_HIGH_IDLE, NULL, file_is_open_cb, list);
+}
+
+static void
+file_selected_cb (GtkWidget     *button,
+                  GtkStringList *stringlist)
+{
+  GFile *file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (button));
+
+  if (file)
+    {
+      load_file (stringlist, file);
+      g_object_unref (file);
+    }
+}
+
+GtkWidget *
+do_listview_words (GtkWidget *do_widget)
+{
+  if (window == NULL)
+    {
+      GtkWidget *header, *listview, *sw, *vbox, *search_entry, *open_button, *overlay;
+      GtkFilterListModel *filter_model;
+      GtkNoSelection *selection;
+      GtkStringList *stringlist;
+      GtkFilter *filter;
+      GtkExpression *expression;
+      GFile *file;
+
+      file = g_file_new_for_path ("/usr/share/dict/words");
+      if (g_file_query_exists (file, NULL))
+        {
+          stringlist = gtk_string_list_new (NULL);
+          load_file (stringlist, file);
+        }
+      else
+        {
+          char **words;
+          words = g_strsplit ("lorem ipsum dolor sit amet consectetur adipisci elit sed eiusmod tempor incidunt labore et dolore magna aliqua ut enim ad minim veniam quis nostrud exercitation ullamco laboris nisi ut aliquid ex ea commodi consequat", " ", -1);
+          stringlist = gtk_string_list_new ((const char **) words);
+          g_strfreev (words);
+        }
+
+      filter = gtk_string_filter_new ();
+      expression = gtk_property_expression_new (GTK_TYPE_STRING_OBJECT, NULL, "string");
+      gtk_string_filter_set_expression (GTK_STRING_FILTER (filter), expression);
+      gtk_expression_unref (expression);
+      filter_model = gtk_filter_list_model_new (G_LIST_MODEL (stringlist), filter);
+      gtk_filter_list_model_set_incremental (filter_model, TRUE);
+
+      window = gtk_window_new ();
+      gtk_window_set_default_size (GTK_WINDOW (window), 400, 600);
+
+      header = gtk_header_bar_new ();
+      gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (header), TRUE);
+      open_button = gtk_file_chooser_button_new ("_Open", GTK_FILE_CHOOSER_ACTION_OPEN);
+      g_signal_connect (open_button, "file-set", G_CALLBACK (file_selected_cb), stringlist);
+      gtk_header_bar_pack_start (GTK_HEADER_BAR (header), open_button);
+      gtk_window_set_titlebar (GTK_WINDOW (window), header);
+
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      g_object_add_weak_pointer (G_OBJECT (window), (gpointer*)&window);
+
+      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+      gtk_window_set_child (GTK_WINDOW (window), vbox);
+
+      search_entry = gtk_search_entry_new ();
+      g_object_bind_property (search_entry, "text", filter, "search", 0);
+      gtk_box_append (GTK_BOX (vbox), search_entry);
+
+      overlay = gtk_overlay_new ();
+      gtk_box_append (GTK_BOX (vbox), overlay);
+
+      progress = gtk_progress_bar_new ();
+      gtk_widget_set_halign (progress, GTK_ALIGN_FILL);
+      gtk_widget_set_valign (progress, GTK_ALIGN_START);
+      gtk_widget_set_hexpand (progress, TRUE);
+      gtk_overlay_add_overlay (GTK_OVERLAY (overlay), progress);
+
+      sw = gtk_scrolled_window_new ();
+      gtk_overlay_set_child (GTK_OVERLAY (overlay), sw);
+
+      listview = gtk_list_view_new_with_factory (
+          gtk_builder_list_item_factory_new_from_bytes (NULL,
+              g_bytes_new_static (factory_text, strlen (factory_text))));
+      gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), listview);
+      selection = gtk_no_selection_new (G_LIST_MODEL (filter_model));
+      gtk_list_view_set_model (GTK_LIST_VIEW (listview), G_LIST_MODEL (selection));
+      g_object_unref (selection);
+
+      g_signal_connect (filter_model, "items-changed", G_CALLBACK (update_title_cb), progress);
+      g_signal_connect (filter_model, "notify::pending", G_CALLBACK (update_title_cb), progress);
+      update_title_cb (filter_model);
+
+      g_object_unref (filter_model);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_window_destroy (GTK_WINDOW (window));
+
+  return window;
+}

demos/gtk-demo/main.c

@@ -133,7 +133,7 @@ gtk_demo_run (GtkDemo   *self,
     }
   return TRUE;
 }
-              
+
 static void
 activate_about (GSimpleAction *action,
                 GVariant      *parameter,
@@ -599,10 +599,10 @@ display_image (const char *resource)
 {
   GtkWidget *sw, *image;
 
-  image = gtk_image_new_from_resource (resource);
+  image = gtk_picture_new_for_resource (resource);
   gtk_widget_set_halign (image, GTK_ALIGN_CENTER);
   gtk_widget_set_valign (image, GTK_ALIGN_CENTER);
-  sw = gtk_scrolled_window_new (NULL, NULL);
+  sw = gtk_scrolled_window_new ();
   gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), image);
 
   return sw;
@@ -642,7 +642,7 @@ display_text (const char *resource)
 
   g_bytes_unref (bytes);
 
-  sw = gtk_scrolled_window_new (NULL, NULL);
+  sw = gtk_scrolled_window_new ();
   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                   GTK_POLICY_AUTOMATIC,
                                   GTK_POLICY_AUTOMATIC);
@@ -1035,19 +1035,18 @@ activate (GApplication *app)
   listview = GTK_WIDGET (gtk_builder_get_object (builder, "listview"));
   g_signal_connect (listview, "activate", G_CALLBACK (activate_cb), window);
 
-  load_file (gtk_demos[0].name, gtk_demos[0].filename);
-
   listmodel = create_demo_model ();
   treemodel = gtk_tree_list_model_new (FALSE,
                                        G_LIST_MODEL (listmodel),
-                                       FALSE,
+                                       TRUE,
                                        get_child_model,
                                        NULL,
                                        NULL);
   selection = gtk_single_selection_new (G_LIST_MODEL (treemodel));
   g_signal_connect (selection, "notify::selected-item", G_CALLBACK (selection_cb), NULL);
-  gtk_list_view_set_model (GTK_LIST_VIEW (listview),
-                           G_LIST_MODEL (selection));
+  gtk_list_view_set_model (GTK_LIST_VIEW (listview), G_LIST_MODEL (selection));
+
+  selection_cb (selection, NULL, NULL);
 
   g_object_unref (builder);
 }
@@ -1156,7 +1155,7 @@ out:
 static void
 print_version (void)
 {
-  g_print ("gtk3-demo %d.%d.%d\n",
+  g_print ("gtk4-demo %d.%d.%d\n",
            gtk_get_major_version (),
            gtk_get_minor_version (),
            gtk_get_micro_version ());
@@ -1198,16 +1197,6 @@ main (int argc, char **argv)
   };
   int i;
 
-  /* Most code in gtk-demo is intended to be exemplary, but not
-   * these few lines, which are just a hack so gtk-demo will work
-   * in the GTK tree without installing it.
-   */
-  if (g_file_test ("../../modules/input/immodules.cache", G_FILE_TEST_EXISTS))
-    {
-      g_setenv ("GTK_IM_MODULE_FILE", "../../modules/input/immodules.cache", TRUE);
-    }
-  /* -- End of hack -- */
-
   app = gtk_application_new ("org.gtk.Demo4", G_APPLICATION_NON_UNIQUE|G_APPLICATION_HANDLES_COMMAND_LINE);
 
   g_action_map_add_action_entries (G_ACTION_MAP (app),

demos/gtk-demo/main.ui

@@ -16,15 +16,6 @@
       </item>
     </section>
   </menu>
-  <object class="GtkTreeStore" id="treestore">
-    <columns>
-      <column type="gchararray"/>
-      <column type="gchararray"/>
-      <column type="gchararray"/>
-      <column type="gpointer"/>
-      <column type="gint"/>
-    </columns>
-  </object>
   <object class="GtkApplicationWindow" id="window">
     <style>
       <class name="devel"/>

demos/gtk-demo/markup.c

@@ -81,7 +81,7 @@ do_markup (GtkWidget *do_widget)
       gtk_text_view_set_left_margin (GTK_TEXT_VIEW (view), 10);
       gtk_text_view_set_right_margin (GTK_TEXT_VIEW (view), 10);
 
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                       GTK_POLICY_AUTOMATIC,
                                       GTK_POLICY_AUTOMATIC);
@@ -94,7 +94,7 @@ do_markup (GtkWidget *do_widget)
       gtk_text_view_set_left_margin (GTK_TEXT_VIEW (view2), 10);
       gtk_text_view_set_right_margin (GTK_TEXT_VIEW (view2), 10);
 
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                       GTK_POLICY_AUTOMATIC,
                                       GTK_POLICY_AUTOMATIC);

demos/gtk-demo/markup.txt

@@ -5,7 +5,7 @@ Text <span color="gray">c<span color="green">o</span>l<span color="tomato">o</sp
 
 Colorful <span underline="low" underline-color="blue"><span underline="double" underline-color="red">under</span>lines</span> and <span background="pink"><span underline="error">mo</span><span underline="error" underline-color="green">re</span></span>
 
-Colorful <span strikethrough="true" strikethrough-color="magenta">strikethroughs</span>
+Colorful <span strikethrough="true" strikethrough-color="magenta">strikethroughs</span> and <span overline="single" overline_color="green">overlines</span>
 
 Superscripts and subscripts: 𝜀<span rise="-6000" size="x-small" font_desc="italic">0</span> = 𝜔<span rise="8000" size="smaller">𝜔<span rise="14000" size="smaller">𝜔<span rise="20000">.<span rise="23000">.<span rise="26000">.</span></span></span></span></span>
 

demos/gtk-demo/meson.build

@@ -49,6 +49,7 @@ demos = files([
   'listview_minesweeper.c',
   'listview_settings.c',
   'listview_weather.c',
+  'listview_words.c',
   'markup.c',
   'modelbutton.c',
   'overlay.c',

demos/gtk-demo/messages.txt

@@ -259,7 +259,7 @@
 259|GTK+ and friends|GTKtoolkit|#java bindings version 4.0.16 released: http://article.gmane.org/gmane.comp.gnome.bindings.java/1796 #gtk|1276885917|0||0|0
 260|GTK+ and friends|GTKtoolkit|RT @cwiiis: MxIconTheme and MxIcon respect system's icon theme (and changes) now in #mx master :) Made possible by @thosw's XSettings work|1276883019|0||0|0
 261|GTK+ and friends|GTKtoolkit|#javascript mailing list just created. Discuss its usage in GObject libraries: GTK+, Glib ... http://ur1.ca/08lwz by @jwendell #gtk|1276842639|0||0|0
-262|GTK+ and friends|GTKtoolkit|Note fot Win32 users: XP theming is back in 2.90.3 . Please test. #gtk|1276829697|0||0|0
+262|GTK+ and friends|GTKtoolkit|Note for Win32 users: XP theming is back in 2.90.3 . Please test. #gtk|1276829697|0||0|0
 263|GTK+ and friends|GTKtoolkit|GTK+ 2.90.3 (unstable) released: http://mail.gnome.org/archives/gtk-devel-list/2010-June/msg00137.html #gtk|1276829633|0||0|0
 264|GTK+ and friends|GTKtoolkit|GLib 2.25.9 (unstable) released: http://ur1.ca/08hrl WARNING: API changes in GDBus, GSettings and GApplication #gtk|1276829581|0||0|0
 265|scaroo|scaroo|RT @scaroo: #SeedKit does RGBA window with css shadows and stuff : http://dl.dropbox.com/u/5746554/seedkit-does-rgba.png|1276734086|0|GTKtoolkit|0|1

demos/gtk-demo/overlay2.c

@@ -40,7 +40,7 @@ do_overlay2 (GtkWidget *do_widget)
       gtk_window_set_title (GTK_WINDOW (window), "Decorative Overlay");
 
       overlay = gtk_overlay_new ();
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                       GTK_POLICY_AUTOMATIC,
                                       GTK_POLICY_AUTOMATIC);

demos/gtk-demo/sliding_puzzle.c

@@ -1,4 +1,4 @@
-/* Sliding puzzle
+/* Sliding Puzzle
  *
  * This demo demonstrates how to use gestures and paintables to create a
  * small sliding puzzle game.
@@ -443,7 +443,7 @@ do_sliding_puzzle (GtkWidget *do_widget)
       gtk_media_stream_set_muted (media, TRUE);
       gtk_media_stream_play (media);
       add_choice (choices, GDK_PAINTABLE (media));
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), choices);
       gtk_grid_attach (GTK_GRID (tweaks), sw, 0, 0, 2, 1);
 

demos/gtk-demo/tabs.c

@@ -40,7 +40,7 @@ do_tabs (GtkWidget *do_widget)
       buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
       gtk_text_buffer_set_text (buffer, "one\ttwo\tthree\nfour\tfive\tsix\nseven\teight\tnine", -1);
 
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                       GTK_POLICY_AUTOMATIC,
                                       GTK_POLICY_AUTOMATIC);

demos/gtk-demo/tagged_entry.c

@@ -57,7 +57,6 @@ do_tagged_entry (GtkWidget *do_widget)
   static GtkWidget *window = NULL;
   GtkWidget *box;
   GtkWidget *box2;
-  GtkWidget *header;
   GtkWidget *entry;
   GtkWidget *button;
 
@@ -66,12 +65,9 @@ do_tagged_entry (GtkWidget *do_widget)
       window = gtk_window_new ();
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
-      header = gtk_header_bar_new ();
-      gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (header), FALSE);
-      gtk_window_set_titlebar (GTK_WINDOW (window), header);
-      gtk_window_set_title (GTK_WINDOW (window), "A tagged entry");
-      gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
-      gtk_window_set_deletable (GTK_WINDOW (window), FALSE);
+      gtk_window_set_title (GTK_WINDOW (window), "Tagged Entry");
+      gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
+
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
       box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
@@ -95,13 +91,6 @@ do_tagged_entry (GtkWidget *do_widget)
       button = gtk_check_button_new_with_mnemonic ("_Spinner");
       g_signal_connect (button, "toggled", G_CALLBACK (toggle_spinner), entry);
       gtk_box_append (GTK_BOX (box2), button);
-      
-      button = gtk_button_new_with_mnemonic ("_Done");
-      gtk_widget_add_css_class (button, "suggested-action");
-      g_signal_connect_swapped (button, "clicked", G_CALLBACK (gtk_window_destroy), window);
-      gtk_header_bar_pack_end (GTK_HEADER_BAR (header), button);
-
-      gtk_window_set_default_widget (GTK_WINDOW (window), button);
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/textscroll.c

@@ -156,7 +156,7 @@ create_text_view (GtkWidget *hbox,
   GtkWidget *textview;
   guint timeout;
 
-  swindow = gtk_scrolled_window_new (NULL, NULL);
+  swindow = gtk_scrolled_window_new ();
   gtk_box_append (GTK_BOX (hbox), swindow);
   textview = gtk_text_view_new ();
   gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (swindow), textview);

demos/gtk-demo/textundo.c

@@ -4,7 +4,7 @@
  * GtkTextBuffer. You can enable or disable undo support using
  * gtk_text_buffer_set_enable_undo().
  *
- * Use Primary+Z to undo and Primary+Shift+Z or Primary+Y to
+ * Use Control+z to undo and Control+Shift+z or Control+y to
  * redo previously undone operations.
  */
 
@@ -29,7 +29,7 @@ do_textundo (GtkWidget *do_widget)
       gtk_window_set_default_size (GTK_WINDOW (window), 450, 450);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
-      gtk_window_set_title (GTK_WINDOW (window), "TextView Undo");
+      gtk_window_set_title (GTK_WINDOW (window), "Undo and Redo");
 
       view = gtk_text_view_new ();
       gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view), GTK_WRAP_WORD);
@@ -46,7 +46,7 @@ do_textundo (GtkWidget *do_widget)
                               -1);
       gtk_text_buffer_end_irreversible_action (buffer);
 
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                       GTK_POLICY_AUTOMATIC,
                                       GTK_POLICY_AUTOMATIC);

demos/gtk-demo/textview.c

@@ -494,7 +494,7 @@ do_textview (GtkWidget *do_widget)
       buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view1));
       view2 = gtk_text_view_new_with_buffer (buffer);
 
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                       GTK_POLICY_AUTOMATIC,
                                       GTK_POLICY_AUTOMATIC);
@@ -504,7 +504,7 @@ do_textview (GtkWidget *do_widget)
 
       gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), view1);
 
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                       GTK_POLICY_AUTOMATIC,
                                       GTK_POLICY_AUTOMATIC);
@@ -590,7 +590,7 @@ easter_egg_callback (GtkWidget *button,
   g_object_unref (buffer);
 
   window = gtk_window_new ();
-  sw = gtk_scrolled_window_new (NULL, NULL);
+  sw = gtk_scrolled_window_new ();
   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                   GTK_POLICY_AUTOMATIC,
                                   GTK_POLICY_AUTOMATIC);

demos/gtk-demo/themes.c

@@ -92,12 +92,11 @@ static Theme themes[] = {
 static int theme;
 
 static gboolean
-change_theme (GtkWidget *widget,
+change_theme (GtkWidget     *widget,
               GdkFrameClock *frame_clock,
-              gpointer data)
+              gpointer       data)
 {
-  GtkBuilder *builder = data;
-  GtkWidget *label;
+  GtkWidget *label = data;
   Theme next = themes[theme++ % G_N_ELEMENTS (themes)];
   char *name;
 
@@ -110,7 +109,6 @@ change_theme (GtkWidget *widget,
   gtk_window_set_title (GTK_WINDOW (widget), name);
   g_free (name);
 
-  label = GTK_WIDGET (gtk_builder_get_object (builder, "fps"));
   if (frame_clock)
     {
       char *fps;
@@ -127,10 +125,10 @@ change_theme (GtkWidget *widget,
 
 static void
 clicked (GtkGestureClick *gesture,
-         int n_press,
-         double x,
-         double y,
-         gpointer data)
+         int              n_press,
+         double           x,
+         double           y,
+         gpointer         data)
 {
   GtkWidget *window;
   GdkEvent *event;
@@ -198,6 +196,7 @@ do_themes (GtkWidget *do_widget)
       GtkBuilder *builder;
       GtkWidget *header;
       GtkWidget *button;
+      GtkWidget *label;
       GtkGesture *gesture;
 
       builder = gtk_builder_new_from_resource ("/themes/themes.ui");
@@ -207,13 +206,17 @@ do_themes (GtkWidget *do_widget)
                               gtk_widget_get_display (do_widget));
 
       header = GTK_WIDGET (gtk_builder_get_object (builder, "header"));
+      label = GTK_WIDGET (gtk_builder_get_object (builder, "fps"));
+
       gesture = gtk_gesture_click_new ();
-      g_signal_connect (gesture, "pressed", G_CALLBACK (clicked), builder);
+      g_signal_connect (gesture, "pressed", G_CALLBACK (clicked), label);
       gtk_widget_add_controller (header, GTK_EVENT_CONTROLLER (gesture));
 
       button = GTK_WIDGET (gtk_builder_get_object (builder, "toggle"));
-      g_signal_connect (button, "notify::active", G_CALLBACK (toggle_cycle), builder);
+      g_signal_connect (button, "notify::active", G_CALLBACK (toggle_cycle), label);
       gtk_widget_realize (window);
+
+      g_object_unref (builder);
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/tree_store.c

@@ -84,7 +84,7 @@ static TreeItem may[] =
 static TreeItem june[] =
 {
   { "June Fathers' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
-  { "Juneteenth (Liberation of Slaves)", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
+  { "Juneteenth (Liberation Day)", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
   { "Flag Day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
   { NULL }
 };
@@ -406,7 +406,7 @@ do_tree_store (GtkWidget *do_widget)
       gtk_box_append (GTK_BOX (vbox),
                           gtk_label_new ("Jonathan's Holiday Card Planning Sheet"));
 
-      sw = gtk_scrolled_window_new (NULL, NULL);
+      sw = gtk_scrolled_window_new ();
       gtk_scrolled_window_set_has_frame (GTK_SCROLLED_WINDOW (sw), TRUE);
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                       GTK_POLICY_AUTOMATIC,

demos/icon-browser/iconbrowser.gresource.xml

@@ -2,7 +2,6 @@
 <gresources>
   <gresource prefix="/org/gtk/iconbrowser/gtk">
     <file preprocess="xml-stripblanks">window.ui</file>
-    <file preprocess="xml-stripblanks">menus.ui</file>
     <file>icon.list</file>
   </gresource>
 </gresources>

demos/icon-browser/iconbrowsercontext.c

@@ -0,0 +1,156 @@
+#include "iconbrowsercontext.h"
+
+struct _IbContext
+{
+  GObject parent_instance;
+
+  char *id;
+  char *name;
+  char *description;
+};
+
+struct _IbContextClass
+{
+  GObjectClass parent_class;
+};
+
+enum {
+  PROP_ID = 1,
+  PROP_NAME,
+  PROP_DESCRIPTION,
+  PROP_NUM_PROPERTIES
+};
+
+G_DEFINE_TYPE (IbContext, ib_context, G_TYPE_OBJECT)
+
+static void
+ib_context_init (IbContext *context)
+{
+}
+
+static void
+ib_context_finalize (GObject *object)
+{
+  IbContext *context = IB_CONTEXT (object);
+
+  g_free (context->id);
+  g_free (context->name);
+  g_free (context->description);
+
+  G_OBJECT_CLASS (ib_context_parent_class)->finalize (object);
+}
+
+static void
+ib_context_set_property (GObject      *object,
+                         guint         property_id,
+                         const GValue *value,
+                         GParamSpec   *pspec)
+{
+  IbContext *context = IB_CONTEXT (object);
+
+  switch (property_id)
+    {
+    case PROP_ID:
+      g_free (context->id);
+      context->id = g_value_dup_string (value);
+      break;
+
+    case PROP_NAME:
+      g_free (context->name);
+      context->name = g_value_dup_string (value);
+      break;
+
+    case PROP_DESCRIPTION:
+      g_free (context->description);
+      context->description = g_value_dup_string (value);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+ib_context_get_property (GObject    *object,
+                      guint       property_id,
+                      GValue     *value,
+                      GParamSpec *pspec)
+{
+  IbContext *context = IB_CONTEXT (object);
+
+  switch (property_id)
+    {
+    case PROP_ID:
+      g_value_set_string (value, context->id);
+      break;
+
+    case PROP_NAME:
+      g_value_set_string (value, context->name);
+      break;
+
+    case PROP_DESCRIPTION:
+      g_value_set_string (value, context->description);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+ib_context_class_init (IbContextClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+  GParamSpec *pspec;
+
+  object_class->finalize = ib_context_finalize;
+  object_class->set_property = ib_context_set_property;
+  object_class->get_property = ib_context_get_property;
+
+  pspec = g_param_spec_string ("id", "Id", "Id",
+                               NULL,
+                               G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_ID, pspec);
+
+  pspec = g_param_spec_string ("name", "Name", "Name",
+                               NULL,
+                               G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_NAME, pspec);
+
+  pspec = g_param_spec_string ("description", "Description", "Description",
+                               NULL,
+                               G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_DESCRIPTION, pspec);
+}
+
+IbContext *
+ib_context_new (const char *id,
+                const char *name,
+                const char *description)
+{
+  return g_object_new (IB_TYPE_CONTEXT,
+                       "id", id,
+                       "name", name,
+                       "description", description,
+                       NULL);
+}
+
+const char *
+ib_context_get_id (IbContext *context)
+{
+  return context->id;
+}
+
+const char *
+ib_context_get_name (IbContext *context)
+{
+  return context->name;
+}
+
+const char *
+ib_context_get_description (IbContext *context)
+{
+  return context->description;
+}

demos/icon-browser/iconbrowsercontext.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <gtk.h>
+
+#define IB_TYPE_CONTEXT (ib_context_get_type ())
+G_DECLARE_FINAL_TYPE (IbContext, ib_context, IB, CONTEXT, GObject)
+
+IbContext   *ib_context_new             (const char     *id,
+                                         const char     *name,
+                                         const char     *description);
+
+const char *ib_context_get_id           (IbContext      *context);
+const char *ib_context_get_name         (IbContext      *context);
+const char *ib_context_get_description  (IbContext      *context);

demos/icon-browser/iconbrowsericon.c

@@ -0,0 +1,228 @@
+#include "iconbrowsericon.h"
+
+struct _IbIcon
+{
+  GObject parent_instance;
+
+  gboolean use_symbolic;
+
+  char *regular_name;
+  char *symbolic_name;
+  char *description;
+  char *context;
+};
+
+struct _IbIconClass
+{
+  GObjectClass parent_class;
+};
+
+enum {
+  PROP_NAME = 1,
+  PROP_REGULAR_NAME,
+  PROP_SYMBOLIC_NAME,
+  PROP_USE_SYMBOLIC,
+  PROP_DESCRIPTION,
+  PROP_CONTEXT,
+  PROP_NUM_PROPERTIES
+};
+
+G_DEFINE_TYPE (IbIcon, ib_icon, G_TYPE_OBJECT)
+
+static void
+ib_icon_init (IbIcon *icon)
+{
+}
+
+static void
+ib_icon_finalize (GObject *object)
+{
+  IbIcon *icon = IB_ICON (object);
+
+  g_free (icon->regular_name);
+  g_free (icon->symbolic_name);
+  g_free (icon->description);
+  g_free (icon->context);
+
+  G_OBJECT_CLASS (ib_icon_parent_class)->finalize (object);
+}
+
+static void
+ib_icon_set_property (GObject      *object,
+                      guint         property_id,
+                      const GValue *value,
+                      GParamSpec   *pspec)
+{
+  IbIcon *icon = IB_ICON (object);
+
+  switch (property_id)
+    {
+    case PROP_REGULAR_NAME:
+      g_free (icon->regular_name);
+      icon->regular_name = g_value_dup_string (value);
+      if (!icon->use_symbolic)
+        g_object_notify (object, "name");
+      break;
+
+    case PROP_SYMBOLIC_NAME:
+      g_free (icon->symbolic_name);
+      icon->symbolic_name = g_value_dup_string (value);
+      if (icon->use_symbolic)
+        g_object_notify (object, "name");
+      break;
+
+    case PROP_USE_SYMBOLIC:
+      icon->use_symbolic = g_value_get_boolean (value);
+      g_object_notify (object, "name");
+      break;
+
+    case PROP_DESCRIPTION:
+      g_free (icon->description);
+      icon->description = g_value_dup_string (value);
+      break;
+
+    case PROP_CONTEXT:
+      g_free (icon->context);
+      icon->context = g_value_dup_string (value);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+ib_icon_get_property (GObject    *object,
+                      guint       property_id,
+                      GValue     *value,
+                      GParamSpec *pspec)
+{
+  IbIcon *icon = IB_ICON (object);
+
+  switch (property_id)
+    {
+    case PROP_NAME:
+      g_value_set_string (value, ib_icon_get_name (icon));
+      break;
+
+    case PROP_REGULAR_NAME:
+      g_value_set_string (value, icon->regular_name);
+      break;
+
+    case PROP_SYMBOLIC_NAME:
+      g_value_set_string (value, icon->symbolic_name);
+      break;
+
+    case PROP_USE_SYMBOLIC:
+      g_value_set_boolean (value, icon->use_symbolic);
+      break;
+
+    case PROP_DESCRIPTION:
+      g_value_set_string (value, icon->description);
+      break;
+
+    case PROP_CONTEXT:
+      g_value_set_string (value, icon->context);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+ib_icon_class_init (IbIconClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+  GParamSpec *pspec;
+
+  object_class->finalize = ib_icon_finalize;
+  object_class->set_property = ib_icon_set_property;
+  object_class->get_property = ib_icon_get_property;
+
+  pspec = g_param_spec_string ("name", "Name", "Name",
+                               NULL,
+                               G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_NAME, pspec);
+
+  pspec = g_param_spec_string ("regular-name", "Regular Name", "Regular Name",
+                               NULL,
+                               G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_REGULAR_NAME, pspec);
+
+  pspec = g_param_spec_string ("symbolic-name", "Symbolic Name", "Symbolic Name",
+                               NULL,
+                               G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_SYMBOLIC_NAME, pspec);
+
+  pspec = g_param_spec_boolean ("use-symbolic", "Use Symbolic", "Use Symbolic",
+                                FALSE,
+                                G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_USE_SYMBOLIC, pspec);
+
+  pspec = g_param_spec_string ("description", "Description", "Description",
+                               NULL,
+                               G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_DESCRIPTION, pspec);
+
+  pspec = g_param_spec_string ("context", "Context", "Context",
+                               NULL,
+                               G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_CONTEXT, pspec);
+}
+
+IbIcon *
+ib_icon_new (const char *regular_name,
+             const char *symbolic_name,
+             const char *description,
+             const char *context)
+{
+  return g_object_new (IB_TYPE_ICON,
+                       "regular-name", regular_name,
+                       "symbolic-name", symbolic_name,
+                       "description", description,
+                       "context", context,
+                       NULL);
+}
+
+const char *
+ib_icon_get_name (IbIcon *icon)
+{
+  if (icon->use_symbolic)
+    return icon->symbolic_name;
+  else
+    return icon->regular_name;
+}
+
+const char *
+ib_icon_get_regular_name (IbIcon *icon)
+{
+  return icon->regular_name;
+}
+
+const char *
+ib_icon_get_symbolic_name (IbIcon *icon)
+{
+  return icon->symbolic_name;
+}
+
+gboolean
+ib_icon_get_use_symbolic (IbIcon *icon)
+{
+  return icon->use_symbolic;
+}
+
+const char *
+ib_icon_get_description (IbIcon *icon)
+{
+  return icon->description;
+}
+
+const char *
+ib_icon_get_context (IbIcon *icon)
+{
+  return icon->context;
+}
+

demos/icon-browser/iconbrowsericon.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <gtk.h>
+
+#define IB_TYPE_ICON (ib_icon_get_type ())
+G_DECLARE_FINAL_TYPE (IbIcon, ib_icon, IB, ICON, GObject)
+
+IbIcon *ib_icon_new                     (const char     *regular_name,
+                                         const char     *symbolic_name,
+                                         const char     *description,
+                                         const char     *context);
+
+const char *ib_icon_get_name            (IbIcon         *icon);
+const char *ib_icon_get_regular_name    (IbIcon         *icon);
+const char *ib_icon_get_symbolic_name   (IbIcon         *icon);
+gboolean    ib_icon_get_use_symbolic    (IbIcon         *icon);
+const char *ib_icon_get_description     (IbIcon         *icon);
+const char *ib_icon_get_context         (IbIcon         *icon);

demos/icon-browser/iconbrowserwin.c

@@ -1,48 +1,22 @@
 #include <string.h>
 #include "iconbrowserapp.h"
 #include "iconbrowserwin.h"
-#include "iconstore.h"
+#include "iconbrowsericon.h"
+#include "iconbrowsercontext.h"
 #include <gtk/gtk.h>
 
-/* Drag 'n Drop */
-
-typedef struct
-{
-  gchar *id;
-  gchar *name;
-  gchar *description;
-} Context;
-
-static void
-context_free (gpointer data)
-{
-  Context *context = data;
-
-  g_free (context->id);
-  g_free (context->name);
-  g_free (context->description);
-  g_free (context);
-}
 
 struct _IconBrowserWindow
 {
   GtkApplicationWindow parent;
-  GHashTable *contexts;
 
-  GtkWidget *context_list;
-  Context *current_context;
-  gboolean symbolic;
   GtkWidget *symbolic_radio;
-  GtkTreeModelFilter *filter_model;
-  GtkWidget *details;
-
-  GtkListStore *store;
-  GtkCellRenderer *cell;
-  GtkCellRenderer *text_cell;
-  GtkWidget *search;
   GtkWidget *searchbar;
-  GtkWidget *searchentry;
-  GtkWidget *list;
+  GListModel *icon_filter_model;
+  GListStore *icon_store;
+  GListStore *context_store;
+  GtkFilter *name_filter;
+  GtkWidget *details;
   GtkWidget *image1;
   GtkWidget *image2;
   GtkWidget *image3;
@@ -68,87 +42,6 @@ icon_browser_window_get_icon_theme (IconBrowserWindow *win)
   return gtk_icon_theme_get_for_display (gtk_widget_get_display (GTK_WIDGET (win)));
 }
 
-static void
-search_text_changed (GtkEntry *entry, IconBrowserWindow *win)
-{
-  const gchar *text;
-
-  text = gtk_editable_get_text (GTK_EDITABLE (entry));
-
-  if (text[0] == '\0')
-    return;
-
-  gtk_tree_model_filter_refilter (win->filter_model);
-}
-
-static void
-set_image (GtkWidget *image, const gchar *name, gint size)
-{
-  gtk_image_set_from_icon_name (GTK_IMAGE (image), name);
-  gtk_image_set_pixel_size (GTK_IMAGE (image), size);
-}
-
-static void
-item_activated (GtkIconView *icon_view, GtkTreePath *path, IconBrowserWindow *win)
-{
-  GtkIconTheme *icon_theme = icon_browser_window_get_icon_theme (win);
-  GtkTreeIter iter;
-  gchar *name;
-  gchar *description;
-  gint column;
-
-  gtk_tree_model_get_iter (GTK_TREE_MODEL (win->filter_model), &iter, path);
-
-  if (win->symbolic)
-    column = ICON_STORE_SYMBOLIC_NAME_COLUMN;
-  else
-    column = ICON_STORE_NAME_COLUMN;
-  gtk_tree_model_get (GTK_TREE_MODEL (win->filter_model), &iter,
-                      column, &name,
-                      ICON_STORE_DESCRIPTION_COLUMN, &description,
-                      -1);
-
-  if (name == NULL || !gtk_icon_theme_has_icon (icon_theme, name))
-    {
-      g_free (description);
-      return;
-    }
-
-  gtk_window_set_title (GTK_WINDOW (win->details), name);
-  set_image (win->image1, name, 8);
-  set_image (win->image2, name, 16);
-  set_image (win->image3, name, 18);
-  set_image (win->image4, name, 24);
-  set_image (win->image5, name, 32);
-  set_image (win->image6, name, 48);
-  set_image (win->image7, name, 64);
-  if (win->symbolic)
-    {
-      gtk_widget_show (win->image8);
-      gtk_widget_show (win->label8);
-      set_image (win->image8, name, 64);
-    }
-  else
-    {
-      gtk_widget_hide (win->image8);
-      gtk_widget_hide (win->label8);
-    }
-  if (description && description[0])
-    {
-      gtk_label_set_text (GTK_LABEL (win->description), description);
-      gtk_widget_show (win->description);
-    }
-  else
-    {
-      gtk_widget_hide (win->description);
-    }
-
-  gtk_window_present (GTK_WINDOW (win->details));
-
-  g_free (name);
-  g_free (description);
-}
-
 static void
 add_icon (IconBrowserWindow *win,
           const gchar       *name,
@@ -158,6 +51,7 @@ add_icon (IconBrowserWindow *win,
   GtkIconTheme *icon_theme = icon_browser_window_get_icon_theme (win);
   gchar *regular_name;
   gchar *symbolic_name;
+  IbIcon *icon;
 
   regular_name = g_strdup (name);
   if (!gtk_icon_theme_has_icon (icon_theme, regular_name))
@@ -173,12 +67,12 @@ add_icon (IconBrowserWindow *win,
       symbolic_name = NULL;
     }
 
-  gtk_list_store_insert_with_values (win->store, NULL, -1,
-                                     ICON_STORE_NAME_COLUMN, regular_name,
-                                     ICON_STORE_SYMBOLIC_NAME_COLUMN, symbolic_name,
-                                     ICON_STORE_DESCRIPTION_COLUMN, description,
-                                     ICON_STORE_CONTEXT_COLUMN, context,
-                                     -1);
+  icon = ib_icon_new (regular_name, symbolic_name, description, context);
+  g_object_bind_property (win->symbolic_radio, "active",
+                          icon, "use-symbolic",
+                          G_BINDING_DEFAULT);
+  g_list_store_append (win->icon_store, icon);
+  g_object_unref (icon);
 }
 
 static void
@@ -187,50 +81,11 @@ add_context (IconBrowserWindow *win,
              const gchar       *name,
              const gchar       *description)
 {
-  Context *c;
-  GtkWidget *row;
+  IbContext *context;
 
-  c = g_new (Context, 1);
-  c->id = g_strdup (id);
-  c->name = g_strdup (name);
-  c->description = g_strdup (description);
-
-  g_hash_table_insert (win->contexts, c->id, c);
-
-  row = gtk_label_new (name);
-  gtk_label_set_xalign (GTK_LABEL (row), 0);
-  g_object_set_data (G_OBJECT (row), "context", c);
-  gtk_widget_show (row);
-  gtk_widget_set_margin_start (row, 10);
-  gtk_widget_set_margin_end (row, 10);
-  gtk_widget_set_margin_top (row, 10);
-  gtk_widget_set_margin_bottom (row, 10);
-
-  gtk_list_box_insert (GTK_LIST_BOX (win->context_list), row, -1);
-
-  /* set the tooltip on the list box row */
-  row = gtk_widget_get_parent (row);
-  gtk_widget_set_tooltip_text (row, description);
-
-  if (win->current_context == NULL)
-    win->current_context = c;
-}
-
-static void
-selected_context_changed (GtkListBox *list, IconBrowserWindow *win)
-{
-  GtkWidget *row;
-  GtkWidget *label;
-
-  row = GTK_WIDGET (gtk_list_box_get_selected_row (list));
-  if (row == NULL)
-    return;
-
-  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (win->search), FALSE);
-
-  label = gtk_list_box_row_get_child (GTK_LIST_BOX_ROW (row));
-  win->current_context = g_object_get_data (G_OBJECT (label), "context");
-  gtk_tree_model_filter_refilter (win->filter_model);
+  context = ib_context_new (id, name, description);
+  g_list_store_append (win->context_store, context);
+  g_object_unref (context);
 }
 
 static void
@@ -282,6 +137,19 @@ populate (IconBrowserWindow *win)
   g_strfreev (groups);
 }
 
+static gboolean
+filter_by_icon_name (gpointer item,
+                     gpointer data)
+{
+  return ib_icon_get_name (IB_ICON (item)) != NULL;
+}
+
+static void
+symbolic_toggled (IconBrowserWindow *win)
+{
+  gtk_filter_changed (win->name_filter, GTK_FILTER_CHANGE_DIFFERENT);
+}
+
 static void
 copy_to_clipboard (GtkButton         *button,
                    IconBrowserWindow *win)
@@ -292,70 +160,60 @@ copy_to_clipboard (GtkButton         *button,
   gdk_clipboard_set_text (clipboard, gtk_window_get_title (GTK_WINDOW (win->details)));
 }
 
-static gboolean
-icon_visible_func (GtkTreeModel *model,
-                   GtkTreeIter  *iter,
-                   gpointer      data)
+static void
+set_image (GtkWidget *image, const gchar *name, gint size)
 {
-  IconBrowserWindow *win = data;
-  gchar *context;
-  gchar *name;
-  gint column;
-  gboolean search;
-  const gchar *search_text;
-  gboolean visible;
-
-  search = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (win->search));
-  search_text = gtk_editable_get_text (GTK_EDITABLE (win->searchentry));
-
-  if (win->symbolic)
-    column = ICON_STORE_SYMBOLIC_NAME_COLUMN;
-  else
-    column = ICON_STORE_NAME_COLUMN;
-
-  gtk_tree_model_get (model, iter,
-                      column, &name,
-                      ICON_STORE_CONTEXT_COLUMN, &context,
-                      -1);
-  if (!name)
-    visible = FALSE;
-  else if (search)
-    visible = strstr (name, search_text) != NULL;
-  else
-    visible = win->current_context != NULL && g_strcmp0 (context, win->current_context->id) == 0;
-
-  g_free (name);
-  g_free (context);
-
-  return visible;
+  gtk_image_set_from_icon_name (GTK_IMAGE (image), name);
+  gtk_image_set_pixel_size (GTK_IMAGE (image), size);
 }
 
 static void
-symbolic_toggled (GtkToggleButton *toggle, IconBrowserWindow *win)
+item_activated (GtkGridView       *view,
+                guint              position,
+                IconBrowserWindow *win)
 {
-  gint column;
+  GListModel *model = gtk_grid_view_get_model (view);
+  IbIcon *icon = g_list_model_get_item (model, position);
+  const char *name;
+  const char *description;
+  gboolean symbolic;
 
-  win->symbolic = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (toggle));
+  name = ib_icon_get_name (icon);
+  description = ib_icon_get_description (icon);
+  symbolic = ib_icon_get_use_symbolic (icon);
 
-  if (win->symbolic)
-    column = ICON_STORE_SYMBOLIC_NAME_COLUMN;
+  gtk_window_set_title (GTK_WINDOW (win->details), name);
+  set_image (win->image1, name, 8);
+  set_image (win->image2, name, 16);
+  set_image (win->image3, name, 18);
+  set_image (win->image4, name, 24);
+  set_image (win->image5, name, 32);
+  set_image (win->image6, name, 48);
+  set_image (win->image7, name, 64);
+  if (symbolic)
+    {
+      gtk_widget_show (win->image8);
+      gtk_widget_show (win->label8);
+      set_image (win->image8, name, 64);
+    }
   else
-    column = ICON_STORE_NAME_COLUMN;
+    {
+      gtk_widget_hide (win->image8);
+      gtk_widget_hide (win->label8);
+    }
+  if (description && description[0])
+    {
+      gtk_label_set_text (GTK_LABEL (win->description), description);
+      gtk_widget_show (win->description);
+    }
+  else
+    {
+      gtk_widget_hide (win->description);
+    }
 
-  icon_store_set_text_column (ICON_STORE (win->store), column);
+  gtk_window_present (GTK_WINDOW (win->details));
 
-  gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (win->list), win->cell, "icon-name", column, NULL);
-  gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (win->list), win->text_cell, "text", column, NULL);
-
-  gtk_tree_model_filter_refilter (win->filter_model);
-  gtk_widget_queue_draw (win->list);
-}
-
-static void
-search_mode_toggled (GObject *searchbar, GParamSpec *pspec, IconBrowserWindow *win)
-{
-  if (gtk_search_bar_get_search_mode (GTK_SEARCH_BAR (searchbar)))
-    gtk_list_box_unselect_all (GTK_LIST_BOX (win->context_list));
+  g_object_unref (icon);
 }
 
 static GdkPaintable *
@@ -381,7 +239,10 @@ get_image_paintable (GtkImage *image)
                                          gtk_widget_get_direction (GTK_WIDGET (image)),
                                          0);
       if (icon == NULL)
-        return NULL;
+        {
+g_print ("no icon for %s\n", icon_name);
+          return NULL;
+        }
       return GDK_PAINTABLE (icon);
     case GTK_IMAGE_GICON:
     case GTK_IMAGE_EMPTY:
@@ -419,10 +280,10 @@ drag_prepare_texture (GtkDragSource *source,
 {
   GdkPaintable *paintable = get_image_paintable (GTK_IMAGE (widget));
 
-  if (!GDK_IS_TEXTURE (paintable))
+  if (!GDK_IS_PAINTABLE (paintable))
     return NULL;
 
-  return gdk_content_provider_new_typed (GDK_TYPE_TEXTURE, paintable);
+  return gdk_content_provider_new_typed (GDK_TYPE_PAINTABLE, paintable);
 }
 
 static GdkContentProvider *
@@ -476,17 +337,10 @@ setup_scalable_image_dnd (GtkWidget *image)
 static void
 icon_browser_window_init (IconBrowserWindow *win)
 {
-  GdkContentFormats *list;
+  GtkFilter *filter;
 
   gtk_widget_init_template (GTK_WIDGET (win));
 
-  list = gdk_content_formats_new_for_gtype (G_TYPE_STRING);
-  gtk_icon_view_enable_model_drag_source (GTK_ICON_VIEW (win->list),
-                                          GDK_BUTTON1_MASK,
-                                          list,
-                                          GDK_ACTION_COPY);
-  gdk_content_formats_unref (list);
-
   setup_image_dnd (win->image1);
   setup_image_dnd (win->image2);
   setup_image_dnd (win->image3);
@@ -496,19 +350,16 @@ icon_browser_window_init (IconBrowserWindow *win)
   setup_image_dnd (win->image7);
   setup_scalable_image_dnd (win->image8);
 
-  win->contexts = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, context_free);
-
-  gtk_tree_model_filter_set_visible_func (win->filter_model, icon_visible_func, win, NULL);
   gtk_window_set_transient_for (GTK_WINDOW (win->details), GTK_WINDOW (win));
-
-  g_signal_connect (win->searchbar, "notify::search-mode-enabled",
-                    G_CALLBACK (search_mode_toggled), win);
-  gtk_search_bar_set_key_capture_widget (GTK_SEARCH_BAR (win->searchbar),
-                                         GTK_WIDGET (win));
-
-  symbolic_toggled (GTK_TOGGLE_BUTTON (win->symbolic_radio), win);
+  gtk_search_bar_set_key_capture_widget (GTK_SEARCH_BAR (win->searchbar), GTK_WIDGET (win));
 
   populate (win);
+
+  filter = gtk_filter_list_model_get_filter (GTK_FILTER_LIST_MODEL (win->icon_filter_model));
+
+  win->name_filter = gtk_custom_filter_new (filter_by_icon_name, NULL, NULL);
+
+  gtk_multi_filter_append (GTK_MULTI_FILTER (filter), g_object_ref (win->name_filter));
 }
 
 static void
@@ -516,7 +367,7 @@ icon_browser_window_finalize (GObject *object)
 {
   IconBrowserWindow *win = ICON_BROWSER_WINDOW (object);
 
-  g_hash_table_unref (win->contexts);
+  g_clear_object (&win->name_filter);
 
   G_OBJECT_CLASS (icon_browser_window_parent_class)->finalize (object);
 }
@@ -528,23 +379,19 @@ icon_browser_window_class_init (IconBrowserWindowClass *class)
 
   object_class->finalize = icon_browser_window_finalize;
 
-  g_type_ensure (ICON_STORE_TYPE);
+  g_type_ensure (IB_TYPE_ICON);
+  g_type_ensure (IB_TYPE_CONTEXT);
 
   gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
                                                "/org/gtk/iconbrowser/gtk/window.ui");
 
-  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, context_list);
-  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, filter_model);
   gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, symbolic_radio);
-  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, details);
-
-  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, store);
-  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, cell);
-  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, text_cell);
-  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, search);
   gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, searchbar);
-  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, searchentry);
-  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, list);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, icon_store);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, icon_filter_model);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, context_store);
+
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, details);
   gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, image1);
   gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, image2);
   gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, image3);
@@ -556,11 +403,9 @@ icon_browser_window_class_init (IconBrowserWindowClass *class)
   gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, label8);
   gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), IconBrowserWindow, description);
 
-  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), search_text_changed);
   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), copy_to_clipboard);
+  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), symbolic_toggled);
 }
 
 IconBrowserWindow *

demos/icon-browser/iconstore.c

@@ -1,91 +0,0 @@
-#include "iconstore.h"
-#include <gtk/gtk.h>
-
-struct _IconStore
-{
-  GtkListStore parent;
-
-  gint text_column;
-};
-
-struct _IconStoreClass
-{
-  GtkListStoreClass parent_class;
-};
-
-static void icon_store_drag_source_init (GtkTreeDragSourceIface *iface);
-
-G_DEFINE_TYPE_WITH_CODE (IconStore, icon_store, GTK_TYPE_LIST_STORE,
-                         G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_DRAG_SOURCE,
-                                                icon_store_drag_source_init))
-
-
-static void
-icon_store_init (IconStore *store)
-{
-  GType types[4] = { G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING };
-
-  gtk_list_store_set_column_types (GTK_LIST_STORE (store), 4, types);
-
-  store->text_column = ICON_STORE_NAME_COLUMN;
-}
-
-static void
-icon_store_class_init (IconStoreClass *class)
-{
-}
-
-static gboolean
-row_draggable (GtkTreeDragSource *drag_source,
-               GtkTreePath       *path)
-{
-  return TRUE;
-}
-
-static gboolean
-drag_data_delete (GtkTreeDragSource *drag_source,
-                  GtkTreePath       *path)
-{
-  GtkTreeIter iter;
-
-  if (gtk_tree_model_get_iter (GTK_TREE_MODEL (drag_source), &iter, path))
-    return gtk_list_store_remove (GTK_LIST_STORE (drag_source), &iter);
-  return FALSE;
-}
-
-static GdkContentProvider *
-drag_data_get (GtkTreeDragSource *drag_source,
-               GtkTreePath       *path)
-{
-  GdkContentProvider *content;
-  GtkTreeIter iter;
-  gchar *text;
-
-  if (!gtk_tree_model_get_iter (GTK_TREE_MODEL (drag_source), &iter, path))
-    return NULL;
-
-  gtk_tree_model_get (GTK_TREE_MODEL (drag_source), &iter,
-                      ICON_STORE (drag_source)->text_column, &text,
-                      -1);
-
-  content = gdk_content_provider_new_typed (G_TYPE_STRING, text);
-
-  g_free (text);
-
-  return content;
-}
-
-
-static void
-icon_store_drag_source_init (GtkTreeDragSourceIface *iface)
-{
-  iface->row_draggable = row_draggable;
-  iface->drag_data_delete = drag_data_delete;
-  iface->drag_data_get = drag_data_get;
-}
-
-void
-icon_store_set_text_column (IconStore *store, gint text_column)
-{
-  store->text_column = text_column;
-}

demos/icon-browser/iconstore.h

@@ -1,26 +0,0 @@
-#ifndef __ICON_STORE_H
-#define __ICON_STORE_H
-
-#include <gtk/gtk.h>
-
-
-#define ICON_STORE_TYPE (icon_store_get_type ())
-#define ICON_STORE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), ICON_STORE_TYPE, IconStore))
-
-
-typedef struct _IconStore       IconStore;
-typedef struct _IconStoreClass  IconStoreClass;
-
-enum {
-  ICON_STORE_NAME_COLUMN,
-  ICON_STORE_SYMBOLIC_NAME_COLUMN,
-  ICON_STORE_DESCRIPTION_COLUMN,
-  ICON_STORE_CONTEXT_COLUMN
-};
-
-GType   icon_store_get_type     (void);
-
-void    icon_store_set_text_column (IconStore *store,
-                                    gint       column);
-
-#endif /* __ICON_STORE_H */

demos/icon-browser/menus.ui

@@ -1,10 +0,0 @@
-<interface>
-  <menu id="app-menu">
-    <section>
-      <item>
-        <attribute name="label" translatable="yes">_Quit</attribute>
-        <attribute name="action">app.quit</attribute>
-      </item>
-    </section>
-  </menu>
-</interface>

demos/icon-browser/meson.build

@@ -2,7 +2,8 @@ iconbrowser_sources = [
   'main.c',
   'iconbrowserapp.c',
   'iconbrowserwin.c',
-  'iconstore.c'
+  'iconbrowsericon.c',
+  'iconbrowsercontext.c'
 ]
 
 iconbrowser_resources = gnome.compile_resources('iconbrowser_resources',
@@ -17,14 +18,3 @@ executable('gtk4-icon-browser',
            gui_app: true,
            link_args: extra_demo_ldflags,
            install: true)
-
-install_data('org.gtk.IconBrowser4.desktop', install_dir: gtk_applicationsdir)
-
-# icons
-icontheme_dir = join_paths(gtk_datadir, 'icons/hicolor')
-
-foreach size: ['scalable', 'symbolic']
-  install_subdir('data/' + size,
-    install_dir: icontheme_dir
-  )
-endforeach

demos/icon-browser/window.ui

@@ -12,10 +12,6 @@
       </item>
     </section>
   </menu>
-  <object class="IconStore" id="store"/>
-  <object class="GtkTreeModelFilter" id="filter_model">
-    <property name="child-model">store</property>
-  </object>
   <template class="IconBrowserWindow" parent="GtkApplicationWindow">
     <style>
       <class name="devel"/>
@@ -42,7 +38,7 @@
                 <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"/>
+                <signal name="notify::active" handler="symbolic_toggled" swapped="yes" after="yes"/>
               </object>
             </child>
           </object>
@@ -71,8 +67,44 @@
     <child>
       <object class="GtkBox">
         <child>
-          <object class="GtkListBox" id="context_list">
-            <signal name="selected-rows-changed" handler="selected_context_changed"/>
+          <object class="GtkScrolledWindow">
+            <property name="hscrollbar-policy">never</property>
+            <child>
+              <object class="GtkListView">
+                <property name="model">
+                  <object class="GtkSingleSelection" id="context_model">
+                    <property name="model">
+                      <object class="GListStore" id="context_store">
+                        <property name="item-type">IbContext</property>
+                      </object>
+                    </property>
+                  </object>
+                </property>
+                <property name="factory">
+                  <object class="GtkBuilderListItemFactory">
+                    <property name="bytes">
+<![CDATA[
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <template class="GtkListItem">
+    <property name="child">
+      <object class="GtkLabel">
+        <property name="xalign">0</property>
+        <binding name="label">
+          <lookup name="name" type="IbContext">
+            <lookup name="item">GtkListItem</lookup>
+          </lookup>
+        </binding>
+      </object>
+    </property>
+  </template>
+</interface>
+]]>
+                    </property>
+                  </object>
+                </property>
+              </object>
+            </child>
           </object>
         </child>
         <child>
@@ -88,7 +120,6 @@
                 <property name="search-mode-enabled" bind-source="search" bind-property="active" bind-flags="bidirectional"/>
                 <child>
                   <object class="GtkSearchEntry" id="searchentry">
-                    <signal name="search-changed" handler="search_text_changed"/>
                   </object>
                 </child>
               </object>
@@ -99,23 +130,91 @@
                 <property name="vexpand">1</property>
                 <property name="hscrollbar-policy">never</property>
                 <child>
-                  <object class="GtkIconView" id="list">
-                    <property name="model">filter_model</property>
-                    <property name="selection-mode">none</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>
+                  <object class="GtkGridView" id="list">
+                    <signal name="activate" handler="item_activated"/>
+                    <property name="single-click-activate">1</property>
+                    <property name="model">
+                      <object class="GtkNoSelection">
+                        <property name="model">
+                          <object class="GtkFilterListModel" id="icon_filter_model">
+                            <property name="filter">
+                              <object class="GtkEveryFilter">
+                                <child>
+                                  <object class="GtkStringFilter">
+                                    <property name="expression">
+                                      <lookup name="name" type="IbIcon"/>
+                                    </property>
+                                    <binding name="search">
+                                      <lookup name="text" type="GtkSearchEntry">
+                                        searchentry
+                                      </lookup>
+                                    </binding>
+                                  </object>
+                                </child>
+                                <child>
+                                  <object class="GtkStringFilter">
+                                    <property name="ignore-case">0</property>
+                                    <property name="match-mode">exact</property>
+                                    <property name="expression">
+                                      <lookup name="context" type="IbIcon"/>
+                                    </property>
+                                    <binding name="search">
+                                      <lookup name="id" type="IbContext">
+                                        <lookup name="selected-item" type="GtkSingleSelection">
+                                          context_model
+                                        </lookup>
+                                      </lookup>
+                                    </binding>
+                                  </object>
+                                </child>
+                              </object>
+                            </property>
+                            <property name="model">
+                              <object class="GListStore" id="icon_store">
+                                <property name="item-type">IbIcon</property>
+                              </object>
+                            </property>
+                          </object>
+                        </property>
                       </object>
-                    </child>
-                    <child>
-                      <object class="GtkCellRendererText" id="text_cell">
-                        <property name="xpad">10</property>
-                        <property name="ypad">10</property>
+                    </property>
+                    <property name="factory">
+                      <object class="GtkBuilderListItemFactory">
+                        <property name="bytes">
+<![CDATA[
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <template class="GtkListItem">
+    <property name="child">
+      <object class="GtkBox">
+        <property name="orientation">vertical</property>
+        <child>
+          <object class="GtkImage">
+            <property name="pixel-size">48</property>
+            <binding name="icon-name">
+              <lookup name="name" type="IbIcon">
+                <lookup name="item">GtkListItem</lookup>
+              </lookup>
+            </binding>
+          </object>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <binding name="label">
+              <lookup name="name" type="IbIcon">
+                <lookup name="item">GtkListItem</lookup>
+              </lookup>
+            </binding>
+          </object>
+        </child>
+      </object>
+    </property>
+  </template>
+</interface>
+]]>
+                        </property>
                       </object>
-                    </child>
+                    </property>
                   </object>
                 </child>
               </object>
@@ -125,14 +224,7 @@
       </object>
     </child>
   </template>
-  <object class="GtkSizeGroup">
-    <property name="mode">vertical</property>
-    <widgets>
-      <widget name="normal_radio"/>
-      <widget name="symbolic_radio"/>
-      <widget name="search"/>
-    </widgets>
-  </object>
+
   <object class="GtkDialog" id="details">
     <property name="modal">1</property>
     <property name="use-header-bar">1</property>
@@ -164,7 +256,7 @@
               </object>
             </child>
             <child>
-              <object class="GtkImage" id="image2">
+             <object class="GtkImage" id="image2">
                 <property name="halign">center</property>
                 <property name="valign">end</property>
                 <accessibility>
@@ -373,7 +465,7 @@
                 </layout>
               </object>
             </child>
-            <child>
+           <child>
               <object class="GtkLabel" id="label8">
                 <property name="halign">center</property>
                 <property name="valign">baseline</property>
@@ -404,7 +496,7 @@
             <signal name="clicked" handler="copy_to_clipboard"/>
           </object>
         </child>
-        <child>
+       <child>
           <object class="GtkLabel" id="description">
             <property name="margin-start">10</property>
             <property name="margin-end">10</property>
@@ -419,3 +511,4 @@
     </child>
   </object>
 </interface>
+

demos/node-editor/help-window.ui

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <object class="GtkWindow" id="window">
+    <style>
+      <class name="devel"/>
+    </style>
+    <property name="title" translatable="yes">Help</property>
+    <property name="default-width">720</property>
+    <property name="default-height">520</property>
+    <child>
+      <object class="GtkScrolledWindow">
+        <child>
+          <object class="GtkTextView" id="text_view">
+            <property name="wrap-mode">word</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="buffer">
+              <object class="GtkTextBuffer" id="buffer"/>
+            </property>
+          </object>
+        </child>
+      </object>
+    </child>
+  </object>
+</interface>

demos/node-editor/node-editor-application.c

@@ -51,21 +51,121 @@ node_editor_application_init (NodeEditorApplication *app)
 }
 
 static void
-quit_activated (GSimpleAction *action,
+activate_about (GSimpleAction *action,
                 GVariant      *parameter,
-                gpointer       data)
+                gpointer       user_data)
+{
+  GtkApplication *app = user_data;
+  char *version;
+  GString *s;
+  GskRenderer *gsk_renderer;
+  const char *renderer;
+
+  s = g_string_new ("");
+
+  g_string_append (s, "System libraries\n");
+  g_string_append_printf (s, "\tGLib\t%d.%d.%d\n",
+                          glib_major_version,
+                          glib_minor_version,
+                          glib_micro_version);
+  g_string_append_printf (s, "\tPango\t%s\n",
+                          pango_version_string ());
+  g_string_append_printf (s, "\tGTK\t%d.%d.%d\n",
+                          gtk_get_major_version (),
+                          gtk_get_minor_version (),
+                          gtk_get_micro_version ());
+
+  gsk_renderer = gtk_native_get_renderer (GTK_NATIVE (gtk_application_get_active_window (app)));
+  if (strcmp (G_OBJECT_TYPE_NAME (gsk_renderer), "GskVulkanRenderer") == 0)
+    renderer = "Vulkan";
+  else if (strcmp (G_OBJECT_TYPE_NAME (gsk_renderer), "GskGLRenderer") == 0)
+    renderer = "OpenGL";
+  else if (strcmp (G_OBJECT_TYPE_NAME (gsk_renderer), "GskCairoRenderer") == 0)
+    renderer = "Cairo";
+  else
+    renderer = "Unknown";
+
+  g_string_append_printf (s, "\nRenderer\n\t%s", renderer);
+
+  version = g_strdup_printf ("%s\nRunning against GTK %d.%d.%d",
+                             PACKAGE_VERSION,
+                             gtk_get_major_version (),
+                             gtk_get_minor_version (),
+                             gtk_get_micro_version ());
+
+  gtk_show_about_dialog (GTK_WINDOW (gtk_application_get_active_window (app)),
+                         "program-name", "GTK Node Editor",
+                         "version", version,
+                         "copyright", "© 2019—2020 The GTK Team",
+                         "license-type", GTK_LICENSE_LGPL_2_1,
+                         "website", "http://www.gtk.org",
+                         "comments", "Program to test GTK rendering",
+                         "authors", (const char *[]){ "Benjamin Otte", "Timm Bäder", NULL},
+                         "logo-icon-name", "text-editor-symbolic",
+                         "title", "About GTK Node Editor",
+                         "system-information", s->str,
+                         NULL);
+
+  g_string_free (s, TRUE);
+  g_free (version);
+}
+
+static void
+activate_quit (GSimpleAction *action,
+               GVariant      *parameter,
+               gpointer       data)
 {
   g_application_quit (G_APPLICATION (data));
 }
 
+static void
+activate_inspector (GSimpleAction *action,
+                    GVariant      *parameter,
+                    gpointer       user_data)
+{
+  gtk_window_set_interactive_debugging (TRUE);
+}
+
+static void
+activate_help (GSimpleAction *action,
+               GVariant      *parameter,
+               gpointer       user_data)
+{
+  GtkBuilder *builder;
+  GtkWidget *window;
+  GtkTextBuffer *buffer;
+  GBytes *bytes;
+  const char *text;
+  gsize len;
+
+  builder = gtk_builder_new ();
+  gtk_builder_add_from_resource (builder, "/org/gtk/gtk4/node-editor/help-window.ui", NULL);
+  window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
+  buffer = GTK_TEXT_BUFFER (gtk_builder_get_object (builder, "buffer"));
+
+  bytes = g_resources_lookup_data ("/org/gtk/gtk4/node-editor/node-format.md",
+                                   G_RESOURCE_LOOKUP_FLAGS_NONE,
+                                   NULL);
+  text = g_bytes_get_data (bytes, &len);
+  gtk_text_buffer_set_text (buffer, text, len);
+  g_bytes_unref (bytes);
+
+  gtk_window_present (GTK_WINDOW (window));
+  g_object_unref (builder);
+}
+
 static GActionEntry app_entries[] =
 {
-  { "quit", quit_activated, NULL, NULL, NULL }
+  { "about", activate_about, NULL, NULL, NULL },
+  { "quit", activate_quit, NULL, NULL, NULL },
+  { "inspector", activate_inspector, NULL, NULL, NULL },
+  { "help", activate_help, NULL, NULL, NULL },
 };
 
 static void
 node_editor_application_startup (GApplication *app)
 {
+  const char *help_accels[2] = { "F1", NULL };
   const char *quit_accels[2] = { "<Ctrl>Q", NULL };
   const char *open_accels[2] = { "<Ctrl>O", NULL };
   GtkCssProvider *provider;
@@ -75,6 +175,7 @@ node_editor_application_startup (GApplication *app)
   g_action_map_add_action_entries (G_ACTION_MAP (app),
                                    app_entries, G_N_ELEMENTS (app_entries),
                                    app);
+  gtk_application_set_accels_for_action (GTK_APPLICATION (app), "app.help", help_accels);
   gtk_application_set_accels_for_action (GTK_APPLICATION (app), "app.quit", quit_accels);
   gtk_application_set_accels_for_action (GTK_APPLICATION (app), "win.open", open_accels);
 

demos/node-editor/node-editor-window.c

@@ -825,6 +825,7 @@ node_editor_window_create_renderer_widget (gpointer item,
   gtk_widget_set_size_request (box, 120, 90);
 
   label = gtk_label_new (g_object_get_data (G_OBJECT (paintable), "description"));
+  gtk_widget_add_css_class (label, "title-4");
   gtk_box_append (GTK_BOX (box), label);
 
   picture = gtk_picture_new_for_paintable (paintable);

demos/node-editor/node-editor-window.ui

@@ -1,5 +1,22 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
+  <menu id="gear_menu">
+    <section>
+      <item>
+        <attribute name="label" translatable="yes">_Help</attribute>
+        <attribute name="action">app.help</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes">_Inspector</attribute>
+        <attribute name="action">app.inspector</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes">_About Node Editor</attribute>
+        <attribute name="action">app.about</attribute>
+      </item>
+    </section>
+  </menu>
+
   <object class="GtkPopover" id="testcase_popover">
     <child>
       <object class="GtkGrid">
@@ -119,6 +136,13 @@
             <property name="popover">testcase_popover</property>
           </object>
         </child>
+        <child type="end">
+          <object class="GtkMenuButton" id="gear_menu_button">
+            <property name="valign">center</property>
+            <property name="menu-model">gear_menu</property>
+            <property name="icon-name">open-menu-symbolic</property>
+          </object>
+        </child>
       </object>
     </child>
     <child>

demos/node-editor/node-editor.gresource.xml

@@ -2,5 +2,7 @@
 <gresources>
   <gresource prefix="/org/gtk/gtk4/node-editor">
     <file preprocess="xml-stripblanks">node-editor-window.ui</file>
+    <file preprocess="xml-stripblanks">help-window.ui</file>
+    <file>node-format.md</file>
   </gresource>
 </gresources>

demos/node-editor/node-format.md

@@ -0,0 +1,213 @@
+# The Node file format
+
+GSK render nodes can be serialized and deserialized using APIs such as `gsk_render_node_serialize()` and `gsk_render_node_deserialize()`. The intended use for this is development - primarily the development of GTK - by allowing things such as creating testsuites and benchmarks, exchanging nodes in bug reports. GTK includes the `gtk4-node-editor` application for creating such test files.
+
+The format is a text format that follows the [CSS syntax rules](https://drafts.csswg.org/css-syntax-3/). In particular, this means that every array of bytes will produce a render node when parsed, as there is a defined error recovery method. For more details on error handling, please refer to the documentation of the aprsing APIs.
+
+The grammar of a node text representation using [the CSS value definition syntax](https://drafts.csswg.org/css-values-3/#value-defs) looks like this:
+**document**: `<node>\*`
+**node**: container { <document> } | `<node-name> { <property>* }`
+**property**: `<property-name>: <node> | <value> ;`
+
+Each node has its own `<node-name>` and supports a custom set of properties, each with their own `<property-name>` and syntax. The following paragraphs document each of the nodes and their properties.
+
+When serializing and the value of a property equals the default value, this value will not be serialized. Serialization aims to produce an output as small as possible.
+
+# Nodes
+
+### container
+
+The **container** node is a special node that allows specifying a list of child nodes. Its contents follow the same rules as an empty document.
+
+### blend
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| bottom   | `<node>`         | color { color: #AF0; } | always      |
+| mode     | `<blend-mode>`   | normal                 | non-default |
+| top      | `<node>`         | color { }              | always      |
+
+Creates a node like `gsk_blend_node_new()` with the given properties.
+
+### blur
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| blur     | `<number>`       | 1                      | non-default |
+| child    | `<node>`         | color { }              | always      |
+
+Creates a node like `gsk_blur_node_new()` with the given properties.
+
+### border
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| color    | `<color>{1,4}`   | black                  | non-default |
+| outline  | `<rounded-rect>` | 50                     | always      |
+| width    | `<number>{1,4}`  | 1                      | non-default |
+
+Creates a node like `gsk_border_node_new()` with the given properties.
+
+For the color and width properties, the values follow the typical CSS order of top, right, bottom, left. If the last/left value isn't given, the 2nd/right value is used. If the 3rd/bottom value isn't given, the 1st/top value is used. And if the 2nd/right value also isn't given, the 1st/top value is used for every 4 values.
+
+### clip
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| child    | `<node>`         | color { }              | always      |
+| clip     | `<rounded-rect>` | 50                     | always      |
+
+Creates a node like `gsk_clip_node_new()` with the given properties.
+
+As an extension, this node allows specifying a rounded rectangle for the clip property. If that rectangle is indeed rounded, a node like `gsk_rounded_clip_node_new()` will be created instead.
+
+### color
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| bounds   | `<rect>`         | 50                     | always      |
+| color    | `<color>`        | #FF00CC                | always      |
+
+Creates a node like `gsk_color_node_new()` with the given properties.
+
+The color is chosen as an error pink so it is visible while also reminding people to change it.
+
+### color-matrix
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| child    | `<node>`         | color { }              | always      |
+| matrix   | `<transform>`    | none                   | non-default |
+| offset   | `<number>{4}`    | 0 0 0 0                | non-default |
+
+Creates a node like `gsk_color_matrix_node_new()` with the given properties.
+
+The matrix property accepts a <transform> for compatibility purposes, but you should be aware that the allowed values are meant to be used on 3D transformations, so their naming might appear awkward. However, it is always possible to use the matrix3d() production to specify all 16 values individually.
+
+### cross-fade
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| end      | `<node>`         | color { }              | always      |
+| mode     | `<number>`       | 0.5                    | non-default |
+| start    | `<node>`         | color { color: #AF0; } | always      |
+
+Creates a node like `gsk_cross_fade_node_new()` with the given properties.
+
+### debug
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| child    | `<node>`         | color { }              | always      |
+| message  | `<string>`       | ""                     | non-default |
+
+Creates a node like `gsk_debug_node_new()` with the given properties.
+
+### inset-shadow
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| blur     | `<number>`       | 0                      | non-default |
+| color    | `<color>`        | black                  | non-default |
+| dx       | `<number>`       | 1                      | non-default |
+| dy       | `<number>`       | 1                      | non-default |
+| outline  | `<rounded-rect>` | 50                     | always      |
+| spread   | `<number>`       | 0                      | non-default |
+
+Creates a node like `gsk_inset_shadow_node_new()` with the given properties.
+
+### linear-gradient
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| bounds   | `<rect>`         | 50                     | always      |
+| end      | `<point>`        | 0 50                   | always      |
+| start    | `<point>`        | 0 0                    | always      |
+| stops    | `<color-stop>`   | 0 #AF0, 1 #F0C         | always      |
+
+Creates a node like `gsk_linear_gradient_node_new()` with the given properties.
+
+### opacity
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| child    | `<node>`         | color { }              | always      |
+| opacity  | `<number>`       | 0.5                    | non-default |
+
+Creates a node like `gsk_transform_node_new()` with the given properties.
+
+### outset-shadow
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| blur     | `<number>`       | 0                      | non-default |
+| color    | `<color>`        | black                  | non-default |
+| dx       | `<number>`       | 1                      | non-default |
+| dy       | `<number>`       | 1                      | non-default |
+| outline  | `<rounded-rect>` | 50                     | always      |
+| spread   | `<number>`       | 0                      | non-default |
+
+Creates a node like `gsk_outset_shadow_node_new()` with the given properties.
+
+### repeat
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| bounds   | `<rect>`         | *bounds of child node* | non-default |
+| child    | `<node>`         | color { }              | always      |
+| child-bounds| `<rect>`      | *bounds of child node* | non-default |
+
+Creates a node like `gsk_repeat_node_new()` with the given properties.
+
+### rounded-clip
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| child    | `<node>`         | color { }              | always      |
+| clip     | `<rounded-rect>` | 50                     | always      |
+
+Creates a node like `gsk_rounded_clip_node_new()` with the given properties.
+
+### shadow
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| child    | `<node>`         | color { }              | always      |
+| shadow   | `<shadow>`       | black 1 1              | always      |
+
+Creates a node like `gsk_shadow_node_new()` with the given properties.
+
+### text
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| color    | `<color>`        | black                  | non-default |
+| font     | `<string>`       | "Cantarell 11"         | always      |
+| glyphs   | `<glyphs>`       | "Hello"                | always      |
+| offset   | `<point>`        | 0 0                    | non-default |
+
+Creates a node like `gsk_text_node_new()` with the given properties.
+
+If the given font does not exist or the given glyphs are invalid for the given font, an error node will be returned.
+
+### texture
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| bounds   | `<rect>`         | 50                     | always      |
+| texture  | `<url>`          | *see below*            | always      |
+
+Creates a node like `gsk_texture_node_new()` with the given properties.
+
+The default texture is a 10x10 checkerboard with the top left and bottom right 5x5 being in the color #FF00CC and the other part being transparent. A possible representation for this texture is `url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAABmJLR0QA/wD/AP+gvaeTAAAAKUlEQVQYlWP8z3DmPwMaYGQwYUQXY0IXwAUGUCGGoxkYGBiweXAoeAYAz44F3e3U1xUAAAAASUVORK5CYII=")
+`.
+
+### transform
+
+| property | syntax           | default                | printed     |
+| -------- | ---------------- | ---------------------- | ----------- |
+| child    | `<node>`         | color { }              | always      |
+| transform| `<transform>`    | none                   | non-default |
+
+Creates a node like `gsk_transform_node_new()` with the given properties.
+

demos/print-editor/meson.build

@@ -1,7 +1,14 @@
-executable('print-editor',
+executable('gtk4-print-editor',
            ['print-editor.c'],
            c_args: common_cflags,
            dependencies: libgtk_dep,
            include_directories: confinc,
            gui_app: true,
-           link_args: extra_demo_ldflags)
+           link_args: extra_demo_ldflags,
+           install: true)
+
+# desktop file
+install_data('org.gtk.PrintEditor4.desktop', install_dir: gtk_applicationsdir)
+
+# appdata
+install_data('org.gtk.PrintEditor4.appdata.xml', install_dir: gtk_appdatadir)

demos/print-editor/org.gtk.PrintEditor4.appdata.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop">
+  <id>org.gtk.PrintEditor4.desktop</id>
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>LGPL-2.0+</project_license>
+  <name>GTK Print Editor</name>
+  <summary>Program to demonstrate GTK printing</summary>
+  <description>
+    <p>
+      GTK Print Editor is a simple editor to demonstrate GTK printing.
+    </p>
+  </description>
+  <screenshots>
+    <screenshot>
+      <image>https://static.gnome.org/appdata/gtk4-print-editor/gtk-print-editor1.png</image>
+      <caption>Print Editor</caption>
+    </screenshot>
+  </screenshots>
+  <kudos>
+    <kudo>HiDpiIcon</kudo>
+    <kudo>ModernToolkit</kudo>
+  </kudos>
+  <url type="homepage">https://www.gtk.org</url>
+  <translation type="gettext">gtk-4.0</translation>
+  <update_contact>matthias.clasen_at_gmail.com</update_contact>
+  <developer_name>Matthias Clasen and others</developer_name>
+  <releases>
+    <release version="3.99.0" date="2020">
+      <description>
+        <p>A new developers snapshot towards GTK 4.0.</p>
+      </description>
+    </release>
+  </releases>
+</component>

demos/print-editor/org.gtk.PrintEditor4.desktop

@@ -0,0 +1,10 @@
+[Desktop Entry]
+Name=Print Editor
+Comment=A simple editor demonstrating GTK printing
+Exec=gtk4-print-editor %f
+Icon=text-editor-symbolic
+Terminal=false
+Type=Application
+StartupNotify=true
+Categories=Development;GTK;
+NoDisplay=true

demos/print-editor/print-editor.c

@@ -23,7 +23,7 @@ update_title (GtkWindow *window)
   else
     basename = g_file_get_basename (filename);
 
-  title = g_strdup_printf ("Simple Editor with printing - %s", basename);
+  title = g_strdup_printf ("GTK Print Editor — %s", basename);
   g_free (basename);
 
   gtk_window_set_title (window, title);
@@ -592,18 +592,54 @@ activate_about (GSimpleAction *action,
                 GVariant      *parameter,
                 gpointer       user_data)
 {
-  const gchar *authors[] = {
-    "Alexander Larsson",
-    NULL
-  };
+  char *version;
+  GString *sysinfo;
+  char *setting;
+  char **backends;
+  int i;
+
+  sysinfo = g_string_new ("System libraries\n");
+  g_string_append_printf (sysinfo, "\tGLib\t%d.%d.%d\n",
+                          glib_major_version,
+                          glib_minor_version,
+                          glib_micro_version);
+  g_string_append_printf (sysinfo, "\tPango\t%s\n",
+                          pango_version_string ());
+  g_string_append_printf (sysinfo, "\tGTK\t%d.%d.%d\n",
+                          gtk_get_major_version (),
+                          gtk_get_minor_version (),
+                          gtk_get_micro_version ());
+
+  g_string_append (sysinfo, "\nPrint backends\n");
+
+  g_object_get (gtk_settings_get_default (), "gtk-print-backends", &setting, NULL);
+  backends = g_strsplit (setting, ",", -1);
+  for (i = 0; backends[i]; i++)
+    g_string_append_printf (sysinfo, "\t%s\n", backends[i]);
+  g_strfreev (backends);
+  g_free (setting);
+
+  version = g_strdup_printf ("%s\nRunning against GTK %d.%d.%d",
+                             PACKAGE_VERSION,
+                             gtk_get_major_version (),
+                             gtk_get_minor_version (),
+                             gtk_get_micro_version ());
+
   gtk_show_about_dialog (GTK_WINDOW (main_window),
-                         "name", "Print Test Editor",
-                         "logo-icon-name", "text-editor-symbolic",
-                         "version", PACKAGE_VERSION,
+                         "program-name", "GTK Print Editor",
+                         "version", version,
                          "copyright", "© 2006-2020 Red Hat, Inc",
-                         "comments", "Program to demonstrate GTK printing.",
-                         "authors", authors,
+                         "license-type", GTK_LICENSE_LGPL_2_1,
+                         "website", "http://www.gtk.org",
+                         "comments", "Program to demonstrate GTK printing",
+                         "authors", (const char *[]){ "Alexander Larsson", NULL },
+                         "logo-icon-name", "text-editor-symbolic",
+                         "title", "About GTK Print Editor",
+                         "system-information", sysinfo->str,
                          NULL);
+
+  g_string_free (sysinfo, TRUE);
+  g_free (version);
 }
 
 static void
@@ -643,23 +679,6 @@ static const gchar ui_info[] =
   "<interface>"
   "  <menu id='menubar'>"
   "    <submenu>"
-  "      <attribute name='label'>_Application</attribute>"
-  "      <section>"
-  "        <item>"
-  "          <attribute name='label'>_About</attribute>"
-  "          <attribute name='action'>app.about</attribute>"
-  "          <attribute name='accel'>&lt;Primary&gt;a</attribute>"
-  "        </item>"
-  "      </section>"
-  "      <section>"
-  "        <item>"
-  "          <attribute name='label'>_Quit</attribute>"
-  "          <attribute name='action'>app.quit</attribute>"
-  "          <attribute name='accel'>&lt;Primary&gt;q</attribute>"
-  "        </item>"
-  "      </section>"
-  "    </submenu>"
-  "    <submenu>"
   "      <attribute name='label'>_File</attribute>"
   "      <section>"
   "        <item>"
@@ -696,6 +715,23 @@ static const gchar ui_info[] =
   "          <attribute name='action'>app.print</attribute>"
   "        </item>"
   "      </section>"
+  "      <section>"
+  "        <item>"
+  "          <attribute name='label'>_Quit</attribute>"
+  "          <attribute name='action'>app.quit</attribute>"
+  "          <attribute name='accel'>&lt;Primary&gt;q</attribute>"
+  "        </item>"
+  "      </section>"
+  "    </submenu>"
+  "    <submenu>"
+  "      <attribute name='label'>_Help</attribute>"
+  "      <section>"
+  "        <item>"
+  "          <attribute name='label'>_About Print Editor</attribute>"
+  "          <attribute name='action'>app.about</attribute>"
+  "          <attribute name='accel'>&lt;Primary&gt;a</attribute>"
+  "        </item>"
+  "      </section>"
   "    </submenu>"
   "  </menu>"
   "</interface>";
@@ -716,25 +752,6 @@ mark_set_callback (GtkTextBuffer     *text_buffer,
   update_statusbar ();
 }
 
-static gint
-command_line (GApplication            *application,
-              GApplicationCommandLine *command_line)
-{
-  int argc;
-  char **argv;
-
-  argv = g_application_command_line_get_arguments (command_line, &argc);
-
-  if (argc == 2)
-    {
-      GFile *file = g_file_new_for_commandline_arg (argv[1]);
-      load_file (file);
-      g_object_unref (file);
-    }
-
-  return 0;
-}
-
 static void
 startup (GApplication *app)
 {
@@ -768,7 +785,7 @@ activate (GApplication *app)
   gtk_window_set_child (GTK_WINDOW (main_window), box);
 
   /* Create document  */
-  sw = gtk_scrolled_window_new (NULL, NULL);
+  sw = gtk_scrolled_window_new ();
 
   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                   GTK_POLICY_AUTOMATIC,
@@ -809,6 +826,20 @@ activate (GApplication *app)
   gtk_widget_show (main_window);
 }
 
+static void
+open (GApplication  *application,
+      GFile        **files,
+      int            n_files,
+      const char    *hint)
+{
+  if (n_files > 1)
+    g_warning ("Can only open a single file");
+
+  activate (application);
+
+  load_file (files[0]);
+}
+
 int
 main (int argc, char **argv)
 {
@@ -832,7 +863,7 @@ main (int argc, char **argv)
     g_clear_error (&error);
   }
 
-  app = gtk_application_new ("org.gtk.PrintEditor", 0);
+  app = gtk_application_new ("org.gtk.PrintEditor4", G_APPLICATION_HANDLES_OPEN);
 
   g_action_map_add_action_entries (G_ACTION_MAP (app),
                                    app_entries, G_N_ELEMENTS (app_entries),
@@ -840,7 +871,7 @@ main (int argc, char **argv)
 
   g_signal_connect (app, "startup", G_CALLBACK (startup), NULL);
   g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
-  g_signal_connect (app, "command-line", G_CALLBACK (command_line), NULL);
+  g_signal_connect (app, "open", G_CALLBACK (open), NULL);
 
   g_application_run (G_APPLICATION (app), argc, argv);
 

demos/widget-factory/widget-factory.c

@@ -408,6 +408,8 @@ activate_print (GSimpleAction *action,
   g_signal_connect (op, "draw-page", G_CALLBACK (print_operation_page), window);
   g_signal_connect (op, "done", G_CALLBACK (print_operation_done), NULL);
 
+  gtk_print_operation_set_embed_page_setup (op, TRUE);
+
   res = gtk_print_operation_run (op, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG, window, NULL);
 
   if (res == GTK_PRINT_OPERATION_RESULT_IN_PROGRESS)

docs/reference/gdk/gdk4-sections.txt

@@ -207,8 +207,6 @@ GdkModifierType
 GDK_MODIFIER_MASK
 
 <SUBSECTION>
-gdk_surface_get_support_multidevice
-gdk_surface_set_support_multidevice
 gdk_surface_get_device_cursor
 gdk_surface_set_device_cursor
 
@@ -357,17 +355,13 @@ gdk_device_get_name
 gdk_device_get_vendor_id
 gdk_device_get_product_id
 gdk_device_get_source
-gdk_device_set_key
-gdk_device_get_key
-gdk_device_set_axis_use
 gdk_device_get_axis_use
 gdk_device_get_associated_device
-gdk_device_list_slave_devices
+gdk_device_list_physical_devices
 gdk_device_get_device_type
 gdk_device_get_display
 gdk_device_get_has_cursor
 gdk_device_get_n_axes
-gdk_device_get_n_keys
 gdk_device_get_axes
 gdk_device_get_seat
 gdk_device_get_num_touches
@@ -382,13 +376,8 @@ gdk_device_has_bidi_layouts
 <SUBSECTION>
 gdk_device_get_state
 gdk_device_get_surface_at_position
-gdk_device_get_history
-gdk_device_free_history
 GdkTimeCoord
 gdk_device_get_axis
-gdk_device_get_axis_names
-gdk_device_get_axis_value
-gdk_device_get_last_event_surface
 
 <SUBSECTION>
 gdk_device_tool_get_serial
@@ -449,8 +438,7 @@ gdk_seat_get_display
 gdk_seat_get_capabilities
 gdk_seat_get_pointer
 gdk_seat_get_keyboard
-gdk_seat_get_slaves
-gdk_seat_get_master_pointers
+gdk_seat_get_physical_devices
 
 <SUBSECTION Standard>
 GDK_SEAT
@@ -494,12 +482,14 @@ gdk_event_get_source_device
 gdk_event_get_device_tool
 gdk_event_get_time
 gdk_event_get_display
+gdk_event_get_seat
 GdkEventSequence
 gdk_event_get_event_sequence
 gdk_event_get_modifier_state
 gdk_event_get_position
 gdk_event_get_axes
 gdk_event_get_axis
+gdk_event_get_history
 gdk_event_get_pointer_emulated
 gdk_event_triggers_context_menu
 gdk_button_event_get_button
@@ -531,7 +521,6 @@ gdk_touchpad_event_get_pinch_scale
 gdk_pad_event_get_axis_value
 gdk_pad_event_get_button
 gdk_pad_event_get_group_mode
-gdk_motion_event_get_history
 
 <SUBSECTION>
 gdk_events_get_angle

docs/reference/gtk/gtk4-docs.xml

@@ -48,6 +48,7 @@
 
     <chapter id="Lists">
       <title>GListModel support</title>
+      <xi:include href="xml/gtkbitset.xml" />
       <xi:include href="xml/gtkexpression.xml" />
       <xi:include href="xml/gtkfilterlistmodel.xml" />
       <section>
@@ -72,9 +73,10 @@
         <xi:include href="xml/gtknoselection.xml" />
         <xi:include href="xml/gtksingleselection.xml" />
         <xi:include href="xml/gtkmultiselection.xml" />
-      <xi:include href="xml/gtkpropertyselection.xml" />
       </section>
+      <xi:include href="xml/gtkbookmarklist.xml" />
       <xi:include href="xml/gtkdirectorylist.xml" />
+      <xi:include href="xml/gtkstringlist.xml" />
     </chapter>
 
     <chapter id="ListContainers">
@@ -216,6 +218,7 @@
       <xi:include href="xml/gtkspinbutton.xml" />
       <xi:include href="xml/gtksearchentry.xml" />
       <xi:include href="xml/gtksearchbar.xml" />
+      <xi:include href="xml/gtkeditablelabel.xml" />
     </chapter>
 
     <chapter id="TextWidgetObjects">

docs/reference/gtk/gtk4-sections.txt

@@ -312,6 +312,8 @@ gtk_list_box_bind_model
 gtk_list_box_row_new
 gtk_list_box_row_changed
 gtk_list_box_row_is_selected
+gtk_list_box_row_get_child
+gtk_list_box_row_set_child
 gtk_list_box_row_get_header
 gtk_list_box_row_set_header
 gtk_list_box_row_get_index
@@ -339,21 +341,69 @@ gtk_list_box_get_type
 gtk_list_box_row_get_type
 </SECTION>
 
+<SECTION>
+<FILE>gtkbitset</FILE>
+<TITLE>GtkBitset</TITLE>
+GtkBitset
+gtk_bitset_ref
+gtk_bitset_unref
+gtk_bitset_new_empty
+gtk_bitset_new_range
+gtk_bitset_copy
+<SUBSECTION>
+gtk_bitset_contains
+gtk_bitset_is_empty
+gtk_bitset_equals
+gtk_bitset_get_minimum
+gtk_bitset_get_maximum
+gtk_bitset_get_size
+gtk_bitset_get_size_in_range
+gtk_bitset_get_nth
+<SUBSECTION>
+gtk_bitset_remove_all
+gtk_bitset_add
+gtk_bitset_remove
+gtk_bitset_add_range
+gtk_bitset_remove_range
+gtk_bitset_add_range_closed
+gtk_bitset_remove_range_closed
+gtk_bitset_add_rectangle
+gtk_bitset_remove_rectangle
+gtk_bitset_union
+gtk_bitset_intersect
+gtk_bitset_subtract
+gtk_bitset_difference
+gtk_bitset_shift_left
+gtk_bitset_shift_right
+gtk_bitset_slice
+<SUBSECTION>
+GtkBitsetIter
+gtk_bitset_iter_init_first
+gtk_bitset_iter_init_last
+gtk_bitset_iter_init_at
+gtk_bitset_iter_next
+gtk_bitset_iter_previous
+gtk_bitset_iter_get_value
+gtk_bitset_iter_is_valid
+<SUBSECTION Private>
+GTK_TYPE_BITSET
+gtk_bitset_get_type
+</SECTION>
+
 <SECTION>
 <FILE>gtkselectionmodel</FILE>
 <TITLE>GtkSelectionModel</TITLE>
 GtkSelectionModel
 gtk_selection_model_is_selected
+gtk_selection_model_get_selection
+gtk_selection_model_get_selection_in_range
 gtk_selection_model_select_item
 gtk_selection_model_unselect_item
 gtk_selection_model_select_range
 gtk_selection_model_unselect_range
 gtk_selection_model_select_all
 gtk_selection_model_unselect_all
-GtkSelectionCallback
-gtk_selection_model_select_callback
-gtk_selection_model_unselect_callback
-gtk_selection_model_query_range
+gtk_selection_model_set_selection
 <SUBSECTION>
 gtk_selection_model_selection_changed
 <SUBSECTION Standard>
@@ -404,15 +454,6 @@ gtk_multi_selection_new
 gtk_multi_selection_get_type
 </SECTION>
 
-<SECTION>
-<FILE>gtkpropertyselection</FILE>
-<TITLE>GtkPropertySelection</TITLE>
-GtkPropertySelection
-gtk_property_selection_new
-<SUBSECTION Private>
-gtk_property_selection_get_type
-</SECTION>
-
 <SECTION>
 <FILE>gtklistitem</FILE>
 <TITLE>GtkListItem</TITLE>
@@ -424,6 +465,8 @@ gtk_list_item_set_child
 gtk_list_item_get_selected
 gtk_list_item_get_selectable
 gtk_list_item_set_selectable
+gtk_list_item_get_activatable
+gtk_list_item_set_activatable
 <SUBSECTION Standard>
 GTK_LIST_ITEM
 GTK_LIST_ITEM_CLASS
@@ -587,6 +630,7 @@ gtk_column_view_column_get_type
 <TITLE>GtkGridView</TITLE>
 GtkGridView
 gtk_grid_view_new
+gtk_grid_view_new_with_factory
 gtk_grid_view_set_model
 gtk_grid_view_get_model
 gtk_grid_view_set_max_columns
@@ -597,6 +641,8 @@ gtk_grid_view_set_single_click_activate
 gtk_grid_view_get_single_click_activate
 gtk_grid_view_set_enable_rubberband
 gtk_grid_view_get_enable_rubberband
+gtk_grid_view_set_factory
+gtk_grid_view_get_factory
 <SUBSECTION Standard>
 GTK_GRID_VIEW
 GTK_GRID_VIEW_CLASS
@@ -980,6 +1026,18 @@ GTK_EDITABLE_GET_IFACE
 gtk_editable_get_type
 </SECTION>
 
+<SECTION>
+<FILE>gtkeditablelabel</FILE>
+<TITLE>GtkEditableLabel</TITLE>
+GtkEditableLabel
+gtk_editable_label_new
+gtk_editable_label_get_editing
+gtk_editable_label_start_editing
+gtk_editable_label_stop_editing
+<SUBSECTION Private>
+gtk_editable_label_get_type
+</SECTION>
+
 <SECTION>
 <FILE>gtktext</FILE>
 <TITLE>GtkText</TITLE>
@@ -1400,6 +1458,21 @@ GTK_DIRECTORY_LIST_GET_CLASS
 gtk_directory_list_get_type
 </SECTION>
 
+<SECTION>
+<FILE>gtkbookmarklist</FILE>
+<TITLE>GtkBookmarkList</TITLE>
+GtkBookmarkList
+gtk_bookmark_list_new
+gtk_bookmark_list_get_filename
+gtk_bookmark_list_set_attributes
+gtk_bookmark_list_get_attributes
+gtk_bookmark_list_set_io_priority
+gtk_bookmark_list_get_io_priority
+gtk_bookmark_list_is_loading
+<SUBSECTION Standard>
+GTK_TYPE_BOOKMARK_LIST
+</SECTION>
+
 <SECTION>
 <FILE>gtkfilter</FILE>
 <TITLE>GtkFilter</TITLE>
@@ -1409,8 +1482,6 @@ gtk_filter_get_strictness
 <SUBSECTION>
 GtkFilterChange
 gtk_filter_changed
-<SUBSECTION>
-gtk_custom_filter_new
 <SUBSECTION Standard>
 GTK_FILTER
 GTK_IS_FILTER
@@ -1428,6 +1499,7 @@ gtk_filter_get_type
 GtkCustomFilter
 GtkCustomFilterFunc
 gtk_custom_filter_new
+gtk_custom_filter_set_filter_func
 <SUBSECTION Standard>
 GTK_CUSTOM_FILTER
 GTK_IS_CUSTOM_FILTER
@@ -1472,6 +1544,9 @@ gtk_filter_list_model_set_model
 gtk_filter_list_model_get_model
 gtk_filter_list_model_set_filter
 gtk_filter_list_model_get_filter
+gtk_filter_list_model_set_incremental
+gtk_filter_list_model_get_incremental
+gtk_filter_list_model_get_pending
 <SUBSECTION Standard>
 GTK_FILTER_LIST_MODEL
 GTK_IS_FILTER_LIST_MODEL
@@ -1491,6 +1566,9 @@ gtk_fixed_new
 gtk_fixed_put
 gtk_fixed_remove
 gtk_fixed_move
+gtk_fixed_get_child_position
+gtk_fixed_get_child_transform
+gtk_fixed_set_child_transform
 <SUBSECTION Standard>
 GTK_FIXED
 GTK_IS_FIXED
@@ -2704,6 +2782,8 @@ gtk_numeric_sorter_get_type
 <TITLE>GtkCustomSorter</TITLE>
 GtkCustomSorter
 gtk_custom_sorter_new
+
+gtk_custom_sorter_set_sort_func
 <SUBSECTION Standard>
 GTK_CUSTOM_SORTER
 GTK_IS_CUSTOM_SORTER
@@ -4472,11 +4552,8 @@ gtk_widget_has_visible_focus
 gtk_widget_is_drawable
 gtk_widget_set_receives_default
 gtk_widget_get_receives_default
-gtk_widget_set_support_multidevice
-gtk_widget_get_support_multidevice
 gtk_widget_get_realized
 gtk_widget_get_mapped
-gtk_widget_device_is_shadowed
 gtk_widget_get_opacity
 gtk_widget_set_opacity
 gtk_widget_get_overflow
@@ -6031,6 +6108,16 @@ gtk_header_bar_get_type
 GtkStackPage
 gtk_stack_page_get_visible
 gtk_stack_page_set_visible
+gtk_stack_page_get_title
+gtk_stack_page_set_title
+gtk_stack_page_get_name
+gtk_stack_page_set_name
+gtk_stack_page_get_needs_attention
+gtk_stack_page_set_needs_attention
+gtk_stack_page_get_use_underline
+gtk_stack_page_set_use_underline
+gtk_stack_page_get_icon_name
+gtk_stack_page_set_icon_name
 gtk_stack_page_get_child
 GtkStack
 gtk_stack_new
@@ -7501,6 +7588,7 @@ gtk_drop_down_set_model
 gtk_drop_down_get_model
 gtk_drop_down_set_selected
 gtk_drop_down_get_selected
+gtk_drop_down_get_selected_item
 gtk_drop_down_set_factory
 gtk_drop_down_get_factory
 gtk_drop_down_set_list_factory
@@ -7514,3 +7602,17 @@ GTK_TYPE_DROP_DOWN
 <SUBSECTION Private>
 gtk_drop_down_get_type
 </SECTION>
+
+<SECTION>
+<FILE>gtkstringlist</FILE>
+<TITLE>GtkStringList</TITLE>
+GtkStringList
+gtk_string_list_new
+gtk_string_list_append
+gtk_string_list_take
+gtk_string_list_remove
+gtk_string_list_splice
+gtk_string_list_get_string
+GtkStringObject
+gtk_string_object_get_string
+</SECTION>

docs/reference/gtk/gtk4.types.in

@@ -18,6 +18,8 @@ gtk_aspect_frame_get_type
 gtk_assistant_get_type
 gtk_assistant_page_get_type
 gtk_bin_layout_get_type
+gtk_bitset_get_type
+gtk_bookmark_list_get_type
 gtk_box_get_type
 gtk_box_layout_get_type
 gtk_buildable_get_type
@@ -68,6 +70,7 @@ gtk_drop_target_get_type
 gtk_drop_target_async_get_type
 gtk_drop_down_get_type
 gtk_editable_get_type
+gtk_editable_label_get_type
 gtk_emoji_chooser_get_type
 gtk_entry_buffer_get_type
 gtk_entry_completion_get_type
@@ -169,7 +172,6 @@ gtk_print_operation_preview_get_type
 gtk_print_settings_get_type
 @DISABLE_ON_W32@gtk_print_unix_dialog_get_type
 gtk_progress_bar_get_type
-gtk_property_selection_get_type
 gtk_radio_button_get_type
 gtk_range_get_type
 gtk_recent_manager_get_type
@@ -208,6 +210,8 @@ gtk_stack_sidebar_get_type
 gtk_stack_switcher_get_type
 gtk_statusbar_get_type
 gtk_string_filter_get_type
+gtk_string_list_get_type
+gtk_string_object_get_type
 gtk_string_sorter_get_type
 gtk_switch_get_type
 gtk_level_bar_get_type

docs/reference/gtk/input-handling.md

@@ -5,7 +5,7 @@ in what happens to translate a key press or mouse motion of the users into a
 change of a GTK widget, you should read this chapter. This knowledge will also
 be useful if you decide to implement your own widgets.
 
-Devices and events
+## Devices and events
 
 The most basic input devices that every computer user has interacted with are
 keyboards and mice; beyond these, GTK supports touchpads, touchscreens and
@@ -13,14 +13,14 @@ more exotic input devices such as graphics tablets. Inside GTK, every such
 input device is represented by a #GdkDevice object.
 
 To simplify dealing with the variability between these input devices, GTK
-has a concept of master and slave devices. The concrete physical devices that
+has a concept of logical and physical devices. The concrete physical devices that
 have many different characteristics (mice may have 2 or 3 or 8 buttons,
 keyboards have different layouts and may or may not have a separate number
-block, etc) are represented as slave devices. Each slave device is
-associated with a virtual master device. Master devices always come in
+block, etc) are represented as physical devices. Each physical device is
+associated with a virtual logical device. Logical devices always come in
 pointer/keyboard pairs - you can think of such a pair as a 'seat'.
 
-GTK widgets generally deal with the master devices, and thus can be used
+GTK widgets generally deal with the logical devices, and thus can be used
 with any pointing device or keyboard.
 
 When a user interacts with an input device (e.g. moves a mouse or presses

docs/reference/gtk/meson.build

@@ -176,7 +176,6 @@ private_headers = [
   'gtkroundedboxprivate.h',
   'gtkscalerprivate.h',
   'gtksearchentryprivate.h',
-  'gtkset.h',
   'gtksettingsprivate.h',
   'gtkshortcutcontrollerprivate.h',
   'gtkshortcutsshortcutprivate.h',
@@ -216,6 +215,7 @@ private_headers = [
   'gtkwin32themeprivate.h',
   'gtkwindowprivate.h',
   'gtk-text-input-client-protocol.h',
+  'roaring.h',
 ]
 
 images = [

docs/reference/gtk/migrating-3to4.md

@@ -457,6 +457,11 @@ as property. GtkNotebook and GtkAssistant are similar.
 gtk4-builder-tool can help with this conversion, with the --3to4 option
 of the simplify command.
 
+### Adapt to GtkScrolledWindow API changes
+
+The constructor for GtkScrolledWindow no longer takes the adjustments
+as arguments - these were almost always %NULL.
+
 ### Adapt to GtkBin removal
 
 The abstract base class GtkBin for single-child containers has been
@@ -638,7 +643,7 @@ nodes.
 
 If you are using a #GtkDrawingArea for custom drawing, you need to switch
 to using gtk_drawing_area_set_draw_func() to set a draw function instead
-of connnecting a handler to the #GtkWidget::draw signal.
+of connecting a handler to the #GtkWidget::draw signal.
 
 ### Stop using APIs to query GdkSurfaces
 
@@ -940,3 +945,18 @@ You can replace calls to <function>gtk_dialog_run()</function>
 by specifying that the #GtkDialog must be modal using
 gtk_window_set_modal() or the %GTK_DIALOG_MODAL flag, and
 connecting to the #GtkDialog::response signal.
+
+## Changes to consider after the switch
+
+GTK 4 has a number of new features that you may want to take
+advantage of once the dust has settled over the initial migration.
+
+### Consider porting to the new list widgets
+
+In GTK 2 and 3, GtkTreeModel and GtkCellRenderer and widgets using
+these were the primary way of displaying data and lists. GTK 4 brings
+a new family of widgets for this purpose that uses list models instead
+of tree models, and widgets instead of cell renderers.
+
+To learn more about the new list widgets, you can read the [List Widget
+Overview](#ListWidget).

docs/reference/gtk/running.md

@@ -4,9 +4,10 @@
 
 GTK inspects a number of environment variables in addition to
 standard variables like `LANG`, `PATH`, `HOME` or `DISPLAY`; mostly
-to determine paths to look for certain files. The [X11]{#x11-envar},
-[Windows]{#win32-envar} and [Broadway]{#broadway-envar} GDK backends
-use some additional environment variables.
+to determine paths to look for certain files. The [X11](#x11-envar),
+[Wayland](#wayland-envar), [Windows](#win32-envar) and
+[Broadway](#broadway-envar) GDK backends use some additional
+environment variables.
 
 ### GTK_DEBUG {#GTK_Debug-Options}
 

docs/reference/gtk/section-list-widget.md

@@ -4,8 +4,8 @@ GTK provides powerful widgets to display and edit lists of data. This document
 gives an overview over the concepts and how they work together to allow
 developers to implement lists.
 
-Lists are intended to be used whenever developers want to display lists of
-objects in roughly the same way.
+Lists are intended to be used whenever developers want to display many objects
+in roughly the same way.
 
 Lists are perfectly fine to be used for very short list of only 2 or 3 elements,
 but generally scale fine to millions of items. Of course, the larger the list
@@ -32,8 +32,8 @@ be provided in 3 ways or combinations thereof:
    specific data, like #GtkDirectoryList. And there are models like #GListStore
    that allow building lists manually.
 
- * Wrapping list models exists like #GtkFilterListModel or #GtkSortListModel
-   that modify or adapt or combine other models.
+ * Wrapping list models like #GtkFilterListModel or #GtkSortListModel
+   modify, adapt or combine other models.
 
  * Last but not least, developers are encouraged to create their own #GListModel
    implementations. The interface is kept deliberately small to make this easy.
@@ -44,8 +44,9 @@ multiple different models at once.
 The elements in a model are called **_items_**. All items are #GObjects.
 
 Every item in a model has a **_position_** which is the unsigned integer that
-describes where in the model the item is located. This position can of course
-change as items are added or removed from the model.
+describes where in the model the item is located. The first item in a model is
+at position 0. The position of an item can of course change as other items are
+added or removed from the model.
 
 It is important to be aware of the difference between items and positions
 because the mapping from position to item is not permanent, so developers
@@ -80,7 +81,7 @@ The behavior of selection models - ie which items they allow selecting and
 what effect this has on other items - is completely up to the selection model.
 As such, single-selections, multi-selections or sharing selection state between
 different selection models and/or views is possible. The selection state of an
-item is exposed in the listitem via the GtkListItem:selected property.
+item is exposed in the listitem via the #GtkListItem:selected property.
 
 Views and listitems also support activation. Activation means that double
 clicking or pressing enter while inside a focused row will cause the view

docs/reference/gtk/wayland.md

@@ -7,4 +7,13 @@ the Wayland backend by setting `GDK_BACKEND=wayland`.
 On UNIX, the Wayland backend is enabled by default, so you don't need to
 do anything special when compiling it, and everything should "just work."
 
-Currently, the Wayland backend does not use any additional environment variables.
+## Wayland-specific environment variables {#wayland-envar}
+
+### WAYLAND_DISPLAY
+
+Specifies the name of the Wayland display to use. Typically, wayland-0
+or wayland-1.
+
+### XDG_RUNTIME_DIR
+
+Used to locate the Wayland socket to use.

docs/reference/gtk/windows.md

@@ -16,7 +16,6 @@ variables.
 ### GDK_IGNORE_WINTAB
 
 If this variable is set, GTK doesn't use the Wintab API for tablet support.
-</para>
 
 ### GDK_USE_WINTAB
 
@@ -37,10 +36,10 @@ can override GTK settings in the `settings.ini` file or at runtime in the
 GTK Inspector.
 
 Themes are loaded from normal Windows variants of the XDG locations:
-`%HOME%/icons/THEME/cursors`, 
-`%APPDATA%/icons/THEME/cursors`, 
+`%HOME%/icons/THEME/cursors`,
+`%APPDATA%/icons/THEME/cursors`,
 `RUNTIME_PREFIX/share/icons/THEME/cursors`
 
-The `gtk-cursor-theme-size`> setting is ignored, GTK will use
+The `gtk-cursor-theme-size` setting is ignored, GTK will use
 the cursor size that Windows tells it to use.
 

docs/tools/widgets.c

@@ -881,7 +881,7 @@ create_scrolledwindow (void)
 {
   GtkWidget *scrolledwin, *label;
 
-  scrolledwin = gtk_scrolled_window_new (NULL, NULL);
+  scrolledwin = gtk_scrolled_window_new ();
   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolledwin),
                                   GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
   label = gtk_label_new ("Scrolled Window");

examples/application10/exampleappwin.c

@@ -258,7 +258,7 @@ example_app_window_open (ExampleAppWindow *win,
 
   basename = g_file_get_basename (file);
 
-  scrolled = gtk_scrolled_window_new (NULL, NULL);
+  scrolled = gtk_scrolled_window_new ();
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();

examples/application3/exampleappwin.c

@@ -43,7 +43,7 @@ example_app_window_open (ExampleAppWindow *win,
 
   basename = g_file_get_basename (file);
 
-  scrolled = gtk_scrolled_window_new (NULL, NULL);
+  scrolled = gtk_scrolled_window_new ();
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();

examples/application4/exampleappwin.c

@@ -53,7 +53,7 @@ example_app_window_open (ExampleAppWindow *win,
 
   basename = g_file_get_basename (file);
 
-  scrolled = gtk_scrolled_window_new (NULL, NULL);
+  scrolled = gtk_scrolled_window_new ();
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();

examples/application5/exampleappwin.c

@@ -76,7 +76,7 @@ example_app_window_open (ExampleAppWindow *win,
 
   basename = g_file_get_basename (file);
 
-  scrolled = gtk_scrolled_window_new (NULL, NULL);
+  scrolled = gtk_scrolled_window_new ();
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();

examples/application6/exampleappwin.c

@@ -77,7 +77,7 @@ example_app_window_open (ExampleAppWindow *win,
 
   basename = g_file_get_basename (file);
 
-  scrolled = gtk_scrolled_window_new (NULL, NULL);
+  scrolled = gtk_scrolled_window_new ();
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();

examples/application7/exampleappwin.c

@@ -130,7 +130,7 @@ example_app_window_open (ExampleAppWindow *win,
 
   basename = g_file_get_basename (file);
 
-  scrolled = gtk_scrolled_window_new (NULL, NULL);
+  scrolled = gtk_scrolled_window_new ();
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();

examples/application8/exampleappwin.c

@@ -222,7 +222,7 @@ example_app_window_open (ExampleAppWindow *win,
 
   basename = g_file_get_basename (file);
 
-  scrolled = gtk_scrolled_window_new (NULL, NULL);
+  scrolled = gtk_scrolled_window_new ();
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();

examples/application9/exampleappwin.c

@@ -256,7 +256,7 @@ example_app_window_open (ExampleAppWindow *win,
 
   basename = g_file_get_basename (file);
 
-  scrolled = gtk_scrolled_window_new (NULL, NULL);
+  scrolled = gtk_scrolled_window_new ();
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();

examples/bp/bloatpad.c

@@ -252,7 +252,7 @@ new_window (GApplication *app,
 
   gtk_grid_attach (GTK_GRID (grid), toolbar, 0, 0, 1, 1);
 
-  scrolled = gtk_scrolled_window_new (NULL, NULL);
+  scrolled = gtk_scrolled_window_new ();
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();

examples/plugman.c

@@ -86,7 +86,7 @@ new_window (GApplication *app,
   grid = gtk_grid_new ();
   gtk_window_set_child (GTK_WINDOW (window), grid);
 
-  scrolled = gtk_scrolled_window_new (NULL, NULL);
+  scrolled = gtk_scrolled_window_new ();
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();

examples/sunny.c

@@ -21,7 +21,7 @@ new_window (GApplication *app,
   overlay = gtk_overlay_new ();
   gtk_window_set_child (GTK_WINDOW (window), overlay);
 
-  scrolled = gtk_scrolled_window_new (NULL, NULL);
+  scrolled = gtk_scrolled_window_new ();
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();

gdk/broadway/gdkdevice-broadway.c

@@ -23,12 +23,6 @@
 #include "gdksurfaceprivate.h"
 #include "gdkprivate-broadway.h"
 
-static gboolean gdk_broadway_device_get_history (GdkDevice      *device,
-                                                 GdkSurface      *surface,
-                                                 guint32         start,
-                                                 guint32         stop,
-                                                 GdkTimeCoord ***events,
-                                                 gint           *n_events);
 static void gdk_broadway_device_get_state (GdkDevice       *device,
                                            GdkSurface       *surface,
                                            gdouble         *axes,
@@ -64,7 +58,6 @@ gdk_broadway_device_class_init (GdkBroadwayDeviceClass *klass)
 {
   GdkDeviceClass *device_class = GDK_DEVICE_CLASS (klass);
 
-  device_class->get_history = gdk_broadway_device_get_history;
   device_class->get_state = gdk_broadway_device_get_state;
   device_class->set_surface_cursor = gdk_broadway_device_set_surface_cursor;
   device_class->query_state = gdk_broadway_device_query_state;
@@ -80,19 +73,8 @@ gdk_broadway_device_init (GdkBroadwayDevice *device_core)
 
   device = GDK_DEVICE (device_core);
 
-  _gdk_device_add_axis (device, NULL, GDK_AXIS_X, 0, 0, 1);
-  _gdk_device_add_axis (device, NULL, GDK_AXIS_Y, 0, 0, 1);
-}
-
-static gboolean
-gdk_broadway_device_get_history (GdkDevice      *device,
-                                 GdkSurface      *surface,
-                                 guint32         start,
-                                 guint32         stop,
-                                 GdkTimeCoord ***events,
-                                 gint           *n_events)
-{
-  return FALSE;
+  _gdk_device_add_axis (device, GDK_AXIS_X, 0, 0, 1);
+  _gdk_device_add_axis (device, GDK_AXIS_Y, 0, 0, 1);
 }
 
 static void
@@ -175,7 +157,7 @@ _gdk_broadway_surface_grab_check_unmap (GdkSurface *surface,
 
   seat = gdk_display_get_default_seat (display);
 
-  devices = gdk_seat_get_slaves (seat, GDK_SEAT_CAPABILITY_ALL);
+  devices = gdk_seat_get_physical_devices (seat, GDK_SEAT_CAPABILITY_ALL);
   devices = g_list_prepend (devices, gdk_seat_get_keyboard (seat));
   devices = g_list_prepend (devices, gdk_seat_get_pointer (seat));
 

gdk/broadway/gdkdisplay-broadway.c

@@ -119,7 +119,7 @@ create_core_pointer (GdkDisplay *display)
 {
   return g_object_new (GDK_TYPE_BROADWAY_DEVICE,
                        "name", "Core Pointer",
-                       "type", GDK_DEVICE_TYPE_MASTER,
+                       "type", GDK_DEVICE_TYPE_LOGICAL,
                        "source", GDK_SOURCE_MOUSE,
                        "has-cursor", TRUE,
                        "display", display,
@@ -131,7 +131,7 @@ create_core_keyboard (GdkDisplay *display)
 {
   return g_object_new (GDK_TYPE_BROADWAY_DEVICE,
                        "name", "Core Keyboard",
-                       "type", GDK_DEVICE_TYPE_MASTER,
+                       "type", GDK_DEVICE_TYPE_LOGICAL,
                        "source", GDK_SOURCE_KEYBOARD,
                        "has-cursor", FALSE,
                        "display", display,
@@ -143,7 +143,7 @@ create_pointer (GdkDisplay *display)
 {
   return g_object_new (GDK_TYPE_BROADWAY_DEVICE,
                        "name", "Pointer",
-                       "type", GDK_DEVICE_TYPE_SLAVE,
+                       "type", GDK_DEVICE_TYPE_PHYSICAL,
                        "source", GDK_SOURCE_MOUSE,
                        "has-cursor", TRUE,
                        "display", display,
@@ -155,7 +155,7 @@ create_keyboard (GdkDisplay *display)
 {
   return g_object_new (GDK_TYPE_BROADWAY_DEVICE,
                        "name", "Keyboard",
-                       "type", GDK_DEVICE_TYPE_SLAVE,
+                       "type", GDK_DEVICE_TYPE_PHYSICAL,
                        "source", GDK_SOURCE_KEYBOARD,
                        "has-cursor", FALSE,
                        "display", display,
@@ -167,7 +167,7 @@ create_touchscreen (GdkDisplay *display)
 {
   return g_object_new (GDK_TYPE_BROADWAY_DEVICE,
                        "name", "Touchscreen",
-                       "type", GDK_DEVICE_TYPE_SLAVE,
+                       "type", GDK_DEVICE_TYPE_PHYSICAL,
                        "source", GDK_SOURCE_TOUCHSCREEN,
                        "has-cursor", FALSE,
                        "display", display,
@@ -196,15 +196,15 @@ _gdk_broadway_display_open (const gchar *display_name)
   _gdk_device_set_associated_device (broadway_display->pointer, broadway_display->core_pointer);
   _gdk_device_set_associated_device (broadway_display->keyboard, broadway_display->core_keyboard);
   _gdk_device_set_associated_device (broadway_display->touchscreen, broadway_display->core_pointer);
-  _gdk_device_add_slave (broadway_display->core_pointer, broadway_display->touchscreen);
+  _gdk_device_add_physical_device (broadway_display->core_pointer, broadway_display->touchscreen);
 
-  seat = gdk_seat_default_new_for_master_pair (broadway_display->core_pointer,
-                                               broadway_display->core_keyboard);
+  seat = gdk_seat_default_new_for_logical_pair (broadway_display->core_pointer,
+                                                broadway_display->core_keyboard);
 
   gdk_display_add_seat (display, seat);
-  gdk_seat_default_add_slave (GDK_SEAT_DEFAULT (seat), broadway_display->pointer);
-  gdk_seat_default_add_slave (GDK_SEAT_DEFAULT (seat), broadway_display->keyboard);
-  gdk_seat_default_add_slave (GDK_SEAT_DEFAULT (seat), broadway_display->touchscreen);
+  gdk_seat_default_add_physical_device (GDK_SEAT_DEFAULT (seat), broadway_display->pointer);
+  gdk_seat_default_add_physical_device (GDK_SEAT_DEFAULT (seat), broadway_display->keyboard);
+  gdk_seat_default_add_physical_device (GDK_SEAT_DEFAULT (seat), broadway_display->touchscreen);
   g_object_unref (seat);
 
   gdk_event_init (display);

gdk/broadway/gdksurface-broadway.c

@@ -1107,13 +1107,12 @@ create_moveresize_surface (MoveResizeData *mv_resize,
 
   G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
   status = gdk_device_grab (pointer,
-                             mv_resize->moveresize_emulation_surface,
-                             GDK_OWNERSHIP_APPLICATION,
-                             FALSE,
-                             GDK_BUTTON_RELEASE_MASK |
-                             GDK_POINTER_MOTION_MASK,
-                             NULL,
-                             timestamp);
+                            mv_resize->moveresize_emulation_surface,
+                            FALSE,
+                            GDK_BUTTON_RELEASE_MASK |
+                            GDK_POINTER_MOTION_MASK,
+                            NULL,
+                            timestamp);
   G_GNUC_END_IGNORE_DEPRECATIONS;
 
   if (status != GDK_GRAB_SUCCESS)

gdk/gdk-private.h

@@ -40,4 +40,15 @@ void           gdk_surface_set_widget (GdkSurface *surface,
                                        gpointer    widget);
 gpointer       gdk_surface_get_widget (GdkSurface *surface);
 
+typedef struct
+{
+  const char *key;
+  guint value;
+  const char *help;
+} GdkDebugKey;
+
+guint gdk_parse_debug_var (const char        *variable,
+                           const GdkDebugKey *keys,
+                           guint              nkeys);
+
 #endif /* __GDK__PRIVATE_H__ */

gdk/gdk.c

@@ -42,6 +42,8 @@
 
 #include <string.h>
 #include <stdlib.h>
+#include <stdio.h>
+#include <ctype.h>
 
 #include <fribidi.h>
 
@@ -128,28 +130,28 @@ static int gdk_initialized = 0;                     /* 1 if the library is initi
                                                      */
 
 #ifdef G_ENABLE_DEBUG
-static const GDebugKey gdk_debug_keys[] = {
-  { "misc",            GDK_DEBUG_MISC },
-  { "events",          GDK_DEBUG_EVENTS },
-  { "dnd",             GDK_DEBUG_DND },
-  { "input",           GDK_DEBUG_INPUT },
-  { "eventloop",       GDK_DEBUG_EVENTLOOP },
-  { "frames",          GDK_DEBUG_FRAMES },
-  { "settings",        GDK_DEBUG_SETTINGS },
-  { "opengl",          GDK_DEBUG_OPENGL },
-  { "vulkan",          GDK_DEBUG_VULKAN },
-  { "selection",       GDK_DEBUG_SELECTION },
-  { "clipboard",       GDK_DEBUG_CLIPBOARD },
-  { "nograbs",         GDK_DEBUG_NOGRABS },
-  { "gl-disable",      GDK_DEBUG_GL_DISABLE },
-  { "gl-software",     GDK_DEBUG_GL_SOFTWARE },
-  { "gl-texture-rect", GDK_DEBUG_GL_TEXTURE_RECT },
-  { "gl-legacy",       GDK_DEBUG_GL_LEGACY },
-  { "gl-gles",         GDK_DEBUG_GL_GLES },
-  { "gl-debug",        GDK_DEBUG_GL_DEBUG },
-  { "vulkan-disable",  GDK_DEBUG_VULKAN_DISABLE },
-  { "vulkan-validate", GDK_DEBUG_VULKAN_VALIDATE },
-  { "default-settings",GDK_DEBUG_DEFAULT_SETTINGS },
+static const GdkDebugKey gdk_debug_keys[] = {
+  { "misc",            GDK_DEBUG_MISC, "Miscellaneous information" },
+  { "events",          GDK_DEBUG_EVENTS, "Information about events" },
+  { "dnd",             GDK_DEBUG_DND, "Information about Drag-and-Drop" },
+  { "input",           GDK_DEBUG_INPUT, "Information about input (Windows)" },
+  { "eventloop",       GDK_DEBUG_EVENTLOOP, "Information about event loop operation (Quartz)" },
+  { "frames",          GDK_DEBUG_FRAMES, "Information about the frame clock" },
+  { "settings",        GDK_DEBUG_SETTINGS, "Information about xsettings" },
+  { "opengl",          GDK_DEBUG_OPENGL, "Information about OpenGL" },
+  { "vulkan",          GDK_DEBUG_VULKAN, "Information about Vulkan" },
+  { "selection",       GDK_DEBUG_SELECTION, "Information about selections" },
+  { "clipboard",       GDK_DEBUG_CLIPBOARD, "Information about clipboards" },
+  { "nograbs",         GDK_DEBUG_NOGRABS, "Disable pointer and keyboard grabs (X11)" },
+  { "gl-disable",      GDK_DEBUG_GL_DISABLE, "Disable OpenGL support" },
+  { "gl-software",     GDK_DEBUG_GL_SOFTWARE, "Force OpenGL software rendering" },
+  { "gl-texture-rect", GDK_DEBUG_GL_TEXTURE_RECT, "Use OpenGL texture rectangle extension" },
+  { "gl-legacy",       GDK_DEBUG_GL_LEGACY, "Use a legacy OpenGL context" },
+  { "gl-gles",         GDK_DEBUG_GL_GLES, "Use a GLES OpenGL context" },
+  { "gl-debug",        GDK_DEBUG_GL_DEBUG, "Insert debugging information in OpenGL" },
+  { "vulkan-disable",  GDK_DEBUG_VULKAN_DISABLE, "Disable Vulkan support" },
+  { "vulkan-validate", GDK_DEBUG_VULKAN_VALIDATE, "Load the Vulkan validation layer" },
+  { "default-settings",GDK_DEBUG_DEFAULT_SETTINGS, "Force default values for xsettings" },
 };
 #endif
 
@@ -199,6 +201,93 @@ gdk_ensure_resources (void)
   g_once (&register_resources_once, register_resources, NULL);
 }
 
+guint
+gdk_parse_debug_var (const char        *variable,
+                     const GdkDebugKey *keys,
+                     guint              nkeys)
+{
+  guint i;
+  guint result = 0;
+  const char *string;
+  const gchar *p;
+  const gchar *q;
+  gboolean invert;
+  gboolean help;
+
+  string = g_getenv (variable);
+  if (string == NULL)
+    return 0;
+
+  p = string;
+  invert = FALSE;
+  help = FALSE;
+
+  while (*p)
+    {
+      q = strpbrk (p, ":;, \t");
+      if (!q)
+        q = p + strlen (p);
+
+      if (3 == q - p && g_ascii_strncasecmp ("all", p, q - p) == 0)
+        {
+          invert = TRUE;
+        }
+      else if (4 == q - p && g_ascii_strncasecmp ("help", p, q - p) == 0)
+        {
+          help = TRUE;
+        }
+      else
+        {
+          for (i = 0; i < nkeys; i++)
+            {
+              if (strlen (keys[i].key) == q - p &&
+                  g_ascii_strncasecmp (keys[i].key, p, q - p) == 0)
+                {
+                  result |= keys[i].value;
+                  break;
+                }
+            }
+          if (i == nkeys)
+            {
+              char *val = g_strndup (p, q - p);
+              fprintf (stderr, "Unrecognized value \"%s\". Try %s=help\n", val, variable);
+              g_free (val);
+            }
+         }
+
+      p = q;
+      if (*p)
+        p++;
+    }
+
+  if (help)
+    {
+      int max_width = 4;
+      for (i = 0; i < nkeys; i++)
+        max_width = MAX (max_width, strlen (keys[i].key));
+      max_width += 4;
+
+      fprintf (stderr, "Supported %s values:\n", variable);
+      for (i = 0; i < nkeys; i++)
+        fprintf (stderr, "  %s%*s%s\n", keys[i].key, (int)(max_width - strlen (keys[i].key)), " ", keys[i].help);
+      fprintf (stderr, "  %s%*s%s\n", "all", max_width - 3, " ", "Enable all values");
+      fprintf (stderr, "  %s%*s%s\n", "help", max_width - 4, " ", "Print this help");
+      fprintf (stderr, "\nMultiple values can be given, separated by : or space.\n");
+    }
+
+  if (invert)
+    {
+      guint all_flags = 0;
+
+      for (i = 0; i < nkeys; i++)
+        all_flags |= keys[i].value;
+
+      result = all_flags & (~result);
+    }
+
+  return result;
+}
+
 void
 gdk_pre_parse (void)
 {
@@ -207,13 +296,12 @@ gdk_pre_parse (void)
   gdk_ensure_resources ();
 
 #ifdef G_ENABLE_DEBUG
-  {
-    gchar *debug_string = getenv("GDK_DEBUG");
-    if (debug_string != NULL)
-      _gdk_debug_flags = g_parse_debug_string (debug_string,
-                                              (GDebugKey *) gdk_debug_keys,
-                                              G_N_ELEMENTS (gdk_debug_keys));
-  }
+  _gdk_debug_flags = gdk_parse_debug_var ("GDK_DEBUG",
+                                          gdk_debug_keys,
+                                          G_N_ELEMENTS (gdk_debug_keys));
+#else
+  if (g_getenv ("GDK_DEBUG"))
+    g_warning ("GDK_DEBUG set but ignored because GTK isn't built with G_ENABLE_DEBUG");
 #endif  /* G_ENABLE_DEBUG */
 
   if (g_getenv ("GTK_TRACE_FD"))

gdk/gdkclipboard.c

@@ -1290,7 +1290,7 @@ gdk_clipboard_set_valist (GdkClipboard *clipboard,
       g_warning ("%s: %s", G_STRLOC, error);
       g_free (error);
       /* we purposely leak the value here, it might not be
-       * in a sane state if an error condition occoured
+       * in a sane state if an error condition occurred
        */
       return;
     }

gdk/gdkcontentproviderimpl.c

@@ -156,7 +156,7 @@ gdk_content_provider_new_typed (GType type,
       g_warning ("%s: %s", G_STRLOC, error);
       g_free (error);
       /* we purposely leak the value here, it might not be
-       * in a sane state if an error condition occoured
+       * in a sane state if an error condition occurred
        */
     }
   va_end (args);