Drop overlapping parts of GtkRoot

Drop the parts of the GtkRoot inferface that has been split off as GtkBud.
inspector: Stop using gtk_root_get_for_surface
2019-04-29 02:37:59 +00:00 · 2019-04-29 02:37:59 +00:00 · 2019-04-29 02:37:59 +00:00 · 2019-04-29 02:37:59 +00:00 · 2019-04-29 02:37:59 +00:00 · 2019-04-29 02:37:59 +00:00
1248 changed files with 68679 additions and 82378 deletions
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -13,15 +13,21 @@ stages:
    - subprojects/pango/

 fedora-x86_64:
-  image: registry.gitlab.gnome.org/gnome/gtk/master:v2
+  image: registry.gitlab.gnome.org/gnome/gtk/master:v5
  stage: build
  script:
    - bash -x ./.gitlab-ci/test-docker.sh
  artifacts:
-    when: on_failure
+    when: always
+    reports:
+      junit:
+        - "${CI_PROJECT_DIR}/_build/report.xml" 
    name: "gtk-${CI_COMMIT_REF_NAME}"
    paths:
      - "${CI_PROJECT_DIR}/_build/meson-logs"
+      - "${CI_PROJECT_DIR}/_build/report.xml"
+      - "${CI_PROJECT_DIR}/_build/report.html"
+      - "${CI_PROJECT_DIR}/_build/testsuite/reftests/output/*.png"
  cache:
    key: "$CI_JOB_NAME"
    <<: *cache-paths
@@ -53,18 +59,49 @@ msys2-mingw32:
  script:
    - bash -x ./.gitlab-ci/flatpak-build.sh "${APPID}"

-flatpak:demo:
-  variables:
-    APPID: org.gtk.Demo
+# Manual jobs, for branches and MRs
+.flatpak-manual: &flatpak-manual
  <<: *flatpak-defaults
+  when: manual

-flatpak:widget-factory:
-  variables:
-    APPID: org.gtk.WidgetFactory
+# Only build Flatpak bundles automatically on master
+.flatpak-master: &flatpak-master
  <<: *flatpak-defaults
+  only:
+    - master
+
+flatpak-manual:demo:
+  variables:
+    APPID: org.gtk.Demo4
+  <<: *flatpak-manual
+
+flatpak-master:demo:
+  variables:
+    APPID: org.gtk.Demo4
+  <<: *flatpak-master
+
+flatpak-manual:widget-factory:
+  variables:
+    APPID: org.gtk.WidgetFactory4
+  <<: *flatpak-manual
+
+flatpak-master:widget-factory:
+  variables:
+    APPID: org.gtk.WidgetFactory4
+  <<: *flatpak-master
+
+flatpak-manual:icon-browser:
+  variables:
+    APPID: org.gtk.IconBrowser4
+  <<: *flatpak-manual
+
+flatpak-master:icon-browser:
+  variables:
+    APPID: org.gtk.IconBrowser4
+  <<: *flatpak-master

 pages:
-  image: registry.gitlab.gnome.org/gnome/gtk/master:v2
+  image: registry.gitlab.gnome.org/gnome/gtk/master:v4
  stage: deploy 
  script:
    - meson -Ddocumentation=true _build .
--- a/.gitlab-ci/Dockerfile
+++ b/.gitlab-ci/Dockerfile
@@ -11,6 +11,7 @@ RUN dnf -y install \
    ccache \
    colord-devel \
    cups-devel \
+    dejavu-sans-mono-fonts \
    desktop-file-utils \
    elfutils-libelf-devel \
    fribidi-devel \
@@ -70,7 +71,9 @@ RUN dnf -y install \
    xorg-x11-server-Xvfb \
 && dnf clean all

-RUN pip3 install meson==0.49.0
+RUN pip3 install meson==0.50.0
+
+RUN pip3 install jinja2

 ARG HOST_USER_ID=5555
 ENV HOST_USER_ID ${HOST_USER_ID}
--- a/.gitlab-ci/meson-html-report.py
+++ b/.gitlab-ci/meson-html-report.py
@@ -0,0 +1,363 @@
+#!/usr/bin/env python3
+
+# Turns a Mason testlog.json file into an HTML report
+#
+# Copyright 2019  GNOME Foundation
+#
+# SPDX-License-Identifier: LGPL-2.1-or-later
+#
+# Original author: Emmanuele Bassi
+
+import argparse
+import datetime
+import json
+import os
+import sys
+from jinja2 import Template
+
+REPORT_TEMPLATE = '''
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <title>{{ report.project_name }} Test Report</title>
+  <meta charset="utf-8" />
+  <style type="text/css">
+body {
+  background: white;
+  color: #333;
+  font-family: 'Cantarell', sans-serif;
+}
+
+h1 {
+  color: #333333;
+  font-size: 1.9em;
+  font-weight: normal;
+  margin-bottom: 1em;
+  border-bottom: 1px solid #333333;
+}
+
+header {
+  position: fixed;
+  padding-bottom: 12px;
+  margin-bottom: 24px;
+  background: rgba(255, 255, 255, 0.85);
+  box-shadow: 0 0 1px rgba(0, 0, 0, 0.15);
+  z-index: 500;
+  left: 0;
+  top: 0;
+  width: 100%;
+  color: rgba(0, 0, 0, 0.3);
+  transform: translateY(0px);
+  transition: .2s background-color, color;
+  box-sizing: border-box;
+  display: block;
+  visibility: visible;
+  text-align: center;
+}
+
+article {
+  padding-top: 200px;
+  margin: 2em;
+}
+
+div.report-meta {
+  width: auto;
+  border: 1px solid #ccc;
+  padding: .5em 2em;
+  color: #3c3c3c;
+}
+
+span.result {
+  font-weight: bold;
+}
+
+span.pass {
+  color: rgb(51, 209, 122);
+}
+
+span.skip {
+  color: rgb(255, 163, 72);
+}
+
+span.fail {
+  color: rgb(224, 27, 36);
+}
+
+span.xfail {
+  color: rgb(163, 71, 186);
+}
+
+div.result {
+  border-top: 1px solid #c0c0c0;
+  padding-top: 1em;
+  padding-bottom: 1em;
+  width: 100%;
+}
+
+div.result h4 {
+  border-bottom: 1px solid #c0c0c0;
+  margin-bottom: 0.7em;
+}
+
+pre {
+  color: #fafafa;
+  background-color: black;
+  border-radius: 6px;
+  box-shadow: 0px 5px 8px 0px rgba(0, 0, 0, 0.25);
+  font-family: monospace;
+  line-height: 1.2em;
+  border: none;
+  padding: 10px 1em;
+  font-size: 0.9em;
+  overflow: auto;
+  white-space: pre;
+  word-break: normal;
+  word-wrap: normal;
+}
+
+ul.passed li {
+  display: inline;
+}
+
+ul.passed li:after {
+  content: ",";
+}
+
+ul.passed li:last-child:after {
+  content: "";
+}
+
+ul.images {
+  padding-bottom: 1em;
+}
+
+ul.images li {
+  display: inline;
+}
+  </style>
+</head>
+<body>
+  <header>
+    <h1>{{ report.project_name }} :: Test Reports</h1>
+    <div class="report-meta">
+      <p><strong>Branch:</strong> {{ report.branch_name }}</p>
+      <p><strong>Date:</strong> <time datetime="{{ report.date.isoformat() }}">{{ report.locale_date }}</time></p>
+      {% if report.job_id %}<p><strong>Job ID:</strong> {{ report.job_id }}</p>{% endif %}
+    </div>
+  </header>
+
+  <article>
+    <section>
+      <div class="summary">
+        <h3>Summary</h3>
+        <ul>
+          <li><strong>Total units:</strong> {{ report.total_units }}</li>
+          <li><strong>Passed:</strong> {{ report.total_successes }}</li>
+          <li><strong>Failed:</strong> {{ report.total_failures }}</li>
+        </ul>
+      </div>
+    </section>
+
+    {% for suite_result in report.results_list %}
+    <section>
+      <div class="result">
+        <h3>Suite: {{ suite_result.suite_name }}</h3>
+        <ul>
+          <li><strong>Units:</strong> {{ suite_result.n_units }}</li>
+          <li><strong>Passed:</strong> {{ suite_result.n_successes }}</li>
+          <li><strong>Failed:</strong> {{ suite_result.n_failures }}</li>
+        </ul>
+
+        <div class="successes">
+          <h4>Passed</h4>
+          <ul class="passed">
+            {% for success in suite_result.successes if success.result == 'OK' %}
+            <li>{{ success.name }} - result: <span class="result pass">{{ success.result }}</li>
+            {% else %}
+            <li>None</li>
+            {% endfor %}
+          </ul>
+
+          <h4>Skipped</h4>
+          <ul>
+            {% for success in suite_result.successes if success.result == 'SKIP' %}
+            <li>{{ success.name }} - result: <span class="result skip">{{ success.result }}</li>
+            {% else %}
+            <li>None</li>
+            {% endfor %}
+          </ul>
+
+          <h4>Expected failures</h4>
+          <ul>
+          {% for success in suite_result.successes if success.result == 'EXPECTEDFAIL' %}
+            <li>{{ success.name }} - result: <span class="result xfail">{{ success.result }}</span><br/>
+            {% if success.stdout %}
+              Output: <pre>{{ success.stdout }}</pre>
+            {% endif %}
+            {% if success.image_data is defined %}
+              <ul class="images">
+                <li><img alt="ref" src="{{ success.image_data.ref }}" /></li>
+                <li><img alt="out" src="{{ success.image_data.out }}" /></li>
+                <li><img alt="diff" src="{{ success.image_data.diff }}" /></li>
+              </ul>
+            {% endif %}
+            </li>
+          {% else %}
+            <li>None</li>
+          {% endfor %}
+          </ul>
+        </div>
+
+        <div class="failures">
+          <h4>Failed</h4>
+          <ul class="failed">
+            {% for failure in suite_result.failures if failure.result == 'FAIL' %}
+            <li>{{ failure.name }} - result: <span class="result fail">{{ failure.result }}</span><br/>
+              {% if failure.stdout %}
+              Output: <pre>{{ failure.stdout }}</pre>
+              {% endif %}
+              {% if failure.image_data is defined %}
+              <ul class="images">
+                <li><img alt="ref" src="{{ failure.image_data.ref }}" /></li>
+                <li><img alt="out" src="{{ failure.image_data.out }}" /></li>
+                <li><img alt="diff" src="{{ failure.image_data.diff }}" /></li>
+              </ul>
+              {% endif %}
+            </li>
+            {% else %}
+            <li>None</li>
+            {% endfor %}
+          </ul>
+
+          <h4>Timed out</h4>
+          <ul class="failed">
+            {% for failure in suite_result.failures if failure.result == 'TIMEOUT' %}
+            <li>{{ failure.name }} - result: <span class="result fail">{{ failure.result }}</span><br/>
+              {% if failure.stdout %}
+              Output: <pre>{{ failure.stdout }}</pre>
+              {% endif %}
+            </li>
+            {% else %}
+            <li>None</li>
+            {% endfor %}
+          </ul>
+        </div>
+
+      </div>
+    </section>
+    {% endfor %}
+
+  </article>
+</body>
+</html>
+'''
+
+aparser = argparse.ArgumentParser(description='Turns a Meson test log into an HTML report')
+aparser.add_argument('--project-name', metavar='NAME',
+                     help='The project name',
+                     default='Unknown')
+aparser.add_argument('--job-id', metavar='ID',
+                     help='The job ID for the report',
+                     default=None)
+aparser.add_argument('--branch', metavar='NAME',
+                     help='Branch of the project being tested',
+                     default='master')
+aparser.add_argument('--output', metavar='FILE',
+                     help='The output HTML file, stdout by default',
+                     type=argparse.FileType('w', encoding='UTF-8'),
+                     default=sys.stdout)
+aparser.add_argument('--reftest-suite', metavar='NAME',
+                     help='The name of the reftests suite',
+                     default='reftest')
+aparser.add_argument('--reftest-output-dir', metavar='DIR',
+                     help='The output directory for reftests data',
+                     default=None)
+aparser.add_argument('infile', metavar='FILE',
+                     help='The input testlog.json, stdin by default',
+                     type=argparse.FileType('r', encoding='UTF-8'),
+                     default=sys.stdin)
+
+args = aparser.parse_args()
+
+outfile = args.output
+
+suites = {}
+for line in args.infile:
+    data = json.loads(line)
+    (full_suite, unit_name) = data['name'].split(' / ')
+    (project_name, suite_name) = full_suite.split(':')
+
+    unit = {
+        'project-name': project_name,
+        'suite': suite_name,
+        'name': unit_name,
+        'duration': data['duration'],
+        'returncode': data['returncode'],
+        'result': data['result'],
+        'stdout': data['stdout'],
+    }
+
+    if args.reftest_output_dir is not None and suite_name == args.reftest_suite:
+        filename = unit_name.split(' ')[1]
+        basename = os.path.splitext(filename)[0]
+
+        image_data = {
+            'ref': os.path.join(args.reftest_output_dir, '{}.ref.png'.format(basename)),
+            'out': os.path.join(args.reftest_output_dir, '{}.out.png'.format(basename)),
+            'diff': os.path.join(args.reftest_output_dir, '{}.diff.png'.format(basename)),
+        }
+
+        unit['image_data'] = image_data
+
+    units = suites.setdefault(full_suite, [])
+    units.append(unit)
+
+report = {}
+report['date'] = datetime.datetime.utcnow()
+report['locale_date'] = report['date'].strftime("%c")
+report['project_name'] = args.project_name
+report['job_id'] = args.job_id
+report['branch_name'] = args.branch
+report['total_successes'] = 0
+report['total_failures'] = 0
+report['total_units'] = 0
+report['results_list'] = []
+
+for name, units in suites.items():
+    (project_name, suite_name) = name.split(':')
+    print('Processing {} suite {}:'.format(project_name, suite_name))
+
+    def if_failed(unit):
+        if unit['result'] in ['FAIL', 'TIMEOUT']:
+            return True
+        return False
+
+    def if_succeded(unit):
+        if unit['result'] in ['OK', 'EXPECTEDFAIL', 'SKIP']:
+            return True
+        return False
+
+    successes = list(filter(if_succeded, units))
+    failures = list(filter(if_failed, units))
+
+    n_units = len(units)
+    n_successes = len(successes)
+    n_failures = len(failures)
+
+    report['total_units'] += n_units
+    report['total_successes'] += n_successes
+    report['total_failures'] += n_failures
+    print(' - {}: {} total, {} pass, {} fail'.format(suite_name, n_units, n_successes, n_failures))
+
+    suite_report = {
+        'suite_name': suite_name,
+        'n_units': n_units,
+        'successes': successes,
+        'n_successes': n_successes,
+        'failures': failures,
+        'n_failures': n_failures,
+    }
+    report['results_list'].append(suite_report)
+
+template = Template(REPORT_TEMPLATE)
+outfile.write(template.render({'report': report}))
--- a/.gitlab-ci/meson-junit-report.py
+++ b/.gitlab-ci/meson-junit-report.py
@@ -0,0 +1,109 @@
+#!/usr/bin/env python3
+
+# Turns a Meson testlog.json file into a JUnit XML report
+#
+# Copyright 2019  GNOME Foundation
+#
+# SPDX-License-Identifier: LGPL-2.1-or-later
+#
+# Original author: Emmanuele Bassi
+
+import argparse
+import datetime
+import json
+import os
+import sys
+import xml.etree.ElementTree as ET
+
+aparser = argparse.ArgumentParser(description='Turns a Meson test log into a JUnit report')
+aparser.add_argument('--project-name', metavar='NAME',
+                     help='The project name',
+                     default='unknown')
+aparser.add_argument('--job-id', metavar='ID',
+                     help='The job ID for the report',
+                     default='Unknown')
+aparser.add_argument('--branch', metavar='NAME',
+                     help='Branch of the project being tested',
+                     default='master')
+aparser.add_argument('--output', metavar='FILE',
+                     help='The output file, stdout by default',
+                     type=argparse.FileType('w', encoding='UTF-8'),
+                     default=sys.stdout)
+aparser.add_argument('infile', metavar='FILE',
+                     help='The input testlog.json, stdin by default',
+                     type=argparse.FileType('r', encoding='UTF-8'),
+                     default=sys.stdin)
+
+args = aparser.parse_args()
+
+outfile = args.output
+
+testsuites = ET.Element('testsuites')
+testsuites.set('id', '{}/{}'.format(args.job_id, args.branch))
+testsuites.set('package', args.project_name)
+testsuites.set('timestamp', datetime.datetime.utcnow().isoformat(timespec='minutes'))
+
+suites = {}
+for line in args.infile:
+    data = json.loads(line)
+    (full_suite, unit_name) = data['name'].split(' / ')
+    (project_name, suite_name) = full_suite.split(':')
+
+    duration = data['duration']
+    return_code = data['returncode']
+    log = data['stdout']
+
+    unit = {
+        'suite': suite_name,
+        'name': unit_name,
+        'duration': duration,
+        'returncode': return_code,
+        'stdout': log,
+    }
+
+    units = suites.setdefault(suite_name, [])
+    units.append(unit)
+
+for name, units in suites.items():
+    print('Processing suite {} (units: {})'.format(name, len(units)))
+
+    def if_failed(unit):
+        if unit['returncode'] != 0:
+            return True
+        return False
+
+    def if_succeded(unit):
+        if unit['returncode'] == 0:
+            return True
+        return False
+
+    successes = list(filter(if_succeded, units))
+    failures = list(filter(if_failed, units))
+    print(' - {}: {} pass, {} fail'.format(name, len(successes), len(failures)))
+
+    testsuite = ET.SubElement(testsuites, 'testsuite')
+    testsuite.set('name', '{}/{}'.format(args.project_name, name))
+    testsuite.set('tests', str(len(units)))
+    testsuite.set('errors', str(len(failures)))
+    testsuite.set('failures', str(len(failures)))
+
+    for unit in successes:
+        testcase = ET.SubElement(testsuite, 'testcase')
+        testcase.set('classname', '{}/{}'.format(args.project_name, unit['suite']))
+        testcase.set('name', unit['name'])
+        testcase.set('time', str(unit['duration']))
+
+    for unit in failures:
+        testcase = ET.SubElement(testsuite, 'testcase')
+        testcase.set('classname', '{}/{}'.format(args.project_name, unit['suite']))
+        testcase.set('name', unit['name'])
+        testcase.set('time', str(unit['duration']))
+
+        failure = ET.SubElement(testcase, 'failure')
+        failure.set('classname', '{}/{}'.format(args.project_name, unit['suite']))
+        failure.set('name', unit['name'])
+        failure.set('type', 'error')
+        failure.text = unit['stdout']
+
+output = ET.tostring(testsuites, encoding='unicode')
+outfile.write(output)
--- a/.gitlab-ci/run-docker.sh
+++ b/.gitlab-ci/run-docker.sh
@@ -2,7 +2,7 @@

 set -e

-TAG="registry.gitlab.gnome.org/gnome/gtk/master:v2"
+TAG="registry.gitlab.gnome.org/gnome/gtk/master:v4"

 sudo docker build --build-arg HOST_USER_ID="$UID" --tag "${TAG}" \
    --file "Dockerfile" .
--- a/.gitlab-ci/test-docker.sh
+++ b/.gitlab-ci/test-docker.sh
@@ -16,6 +16,7 @@ meson \
        -Dwayland-backend=true \
        -Dbroadway-backend=true \
        -Dvulkan=yes \
+        --werror \
        _build $srcdir
 unset CCACHE_DISABLE

@@ -24,9 +25,31 @@ cd _build
 ninja
 ccache --show-stats

+set +e
+
 xvfb-run -a -s "-screen 0 1024x768x24" \
    meson test \
+        --timeout-multiplier 2 \
        --print-errorlogs \
        --suite=gtk \
        --no-suite=gtk:gsk \
        --no-suite=gtk:a11y
+
+# Save the exit code
+exit_code=$?
+
+# We always want to run the report generators
+$srcdir/.gitlab-ci/meson-junit-report.py \
+        --project-name=gtk \
+        --job-id="${CI_JOB_NAME}" \
+        --output=report.xml \
+        meson-logs/testlog.json
+
+$srcdir/.gitlab-ci/meson-html-report.py \
+        --project-name=GTK \
+        --job-id="${CI_JOB_NAME}" \
+        --reftest-output-dir="testsuite/reftests/output" \
+        --output=report.html \
+        meson-logs/testlog.json
+
+exit $exit_code
--- a/.gitlab/issue_templates/Bug.md
+++ b/.gitlab/issue_templates/Bug.md
@@ -23,10 +23,10 @@

 ## Version information
 <!--
- - Which version of GTK+ you are using
+ - Which version of GTK you are using
 - What operating system and version
  - For Linux, which distribution
- - If you built GTK+ yourself, the list of options used to configure the build
+ - If you built GTK yourself, the list of options used to configure the build
 -->

 ## Additional information
--- a/.gitlab/issue_templates/Crash.md
+++ b/.gitlab/issue_templates/Crash.md
@@ -13,10 +13,10 @@

 ## Version information
 <!--
- - Which version of GTK+ you are using
+ - Which version of GTK you are using
 - What operating system and version
  - for Linux, which distribution
- - If you built GTK+ yourself, the list of options used to configure the build
+ - If you built GTK yourself, the list of options used to configure the build
 -->

 ## Warnings
--- a/95
+++ b/95
@@ -1,3 +1,98 @@
+Overview of Changes in GTK+ 3.96.0
+==================================
+
+* DND has been refactored. There are now separate GdkDrag and GdkDrop
+  objects. This work is still incomplete
+
+* The GDK_SURFACE_SUBSURFACE surface type has been removed.
+
+* Use of child surfaces has been greatly reduced. This work is still
+  incomplete
+
+* The use of global coordinates in GDK apis has been reduced. This
+  work is still incomplete
+
+* Events have been simplified and are just used for input
+ - expose events have been replaced by a GdkSurface::render signal
+ - configure events have been replaced by a GdkSurface::size-changed signal
+ - map events have been replaced by a GdkSurface::mapped property
+ - gdk_event_handler_set has been replaced by a GdkSurface::event signal
+ - key events no longer contain a string
+ - events on unmapped widgets are ignored
+
+* Warping the pointer is no longer supported
+
+* The Wayland backend now uses the Settings portal for GtkSettings
+
+* The Wayland input module uses the text-input-unstable-v3 protocol
+
+* The Broadway backend has been rewritten to work well with GSK
+
+* The color chooser has a color picker
+
+* GtkApplication tracks screensaver state and has a ::query-end signal
+
+* The file chooser portal backend supports file filters
+
+* A number of list models have been introduced, for internal use
+  and as public api:
+ - GtkMapListModel
+ - GtkSliceListModel
+ - GtkSortListModel
+ - GtkSelectionModel
+ - GtkSingleSelection
+
+* Support for tabular menus and combo boxes has been dropped
+
+* Key themes are no longer supported
+
+* GtkInvisible has been dropped
+
+* A GtkRoot interface has been added that is currently implemented
+  just by GtkWindow. This work is incomplete
+
+* GtkWidgets can transform their children using projective linear
+  transformations. This functionality is available in CSS and
+  as GskTransform argument to gtk_widget_allocate. GtkFixed is
+  a container that exposes this functionality. For examples of this,
+  see the swing transition of GtkRevealer, the rotate transitions
+  of GtkStack or the Fixed Layout example in gtk-demo.
+
+* GtkEntry functionality has been moved into a new GtkText widget,
+  the GtkEditable interface has been expanded, and new a new
+  GtkPasswordEntry widget has been introduced.
+
+* Focus handling has been rewritten, and focus-change event
+  generation has been unified with crossing events.
+
+* All demos and settings schemas have been renamed to avoid collisions
+  with GTK3.
+
+* GtkWidget can now use a GtkLayoutManager for size allocation.
+  Layout managers can optionally use layout children holding layout
+  properties. GtkBinLayout, GtkBoxLayout, GtkGridLayout, GtkFixedLayout
+  and GtkCustomLayout are currently available, more layout manager
+  implementations will appear in the future.
+
+* GtkAssistant, GtkStack and GtkNotebook now have publicly
+  accessible page objects for their children. The page objects
+  are also exposed via a list model.
+
+* GtkContainer no longer supports child properties. All existing
+  child properties have been removed, converted to regular properties,
+  moved to layout properties or moved to child meta objects.
+
+* A number of X11-specific GtkWindow and GdkSurface apis have been
+  removed
+
+* GtkBuilder can specify object-valued properties inline.
+
+* The gtk4-builder-tool simplify command has gained a --3to4 option
+  to convert GTK3 ui files to GTK4.
+
+* The inspector can show child meta objects and layout properties.
+
+
 Overview of Changes in GTK+ 3.94.0
 ==================================

--- a/build-aux/flatpak/org.gtk.Demo4.json
+++ b/build-aux/flatpak/org.gtk.Demo4.json
@@ -1,5 +1,5 @@
 {
-    "app-id": "org.gtk.Demo",
+    "app-id": "org.gtk.Demo4",
    "runtime": "org.gnome.Platform",
    "runtime-version": "master",
    "sdk": "org.gnome.Sdk",
@@ -9,10 +9,9 @@
    "finish-args": [
        "--device=dri",
        "--share=ipc",
-        "--socket=x11",
+        "--socket=fallback-x11",
        "--socket=wayland",
-        "--talk-name=org.gtk.vfs", "--talk-name=org.gtk.vfs.*",
-        "--talk-name=ca.desrt.conf", "--env=DCONF_USER_CONFIG_DIR=.config/dconf"
+        "--talk-name=org.gtk.vfs", "--talk-name=org.gtk.vfs.*"
    ],
    "cleanup": [
        "/include",
--- a/build-aux/flatpak/org.gtk.IconBrowser4.json
+++ b/build-aux/flatpak/org.gtk.IconBrowser4.json
@@ -0,0 +1,72 @@
+{
+    "app-id": "org.gtk.IconBrowser4",
+    "runtime": "org.gnome.Platform",
+    "runtime-version": "master",
+    "sdk": "org.gnome.Sdk",
+    "command": "gtk4-icon-browser",
+    "tags": ["devel", "development", "nightly"],
+    "desktop-file-name-prefix": "(Development) ",
+    "finish-args": [
+        "--device=dri",
+        "--share=ipc",
+        "--socket=fallback-x11",
+        "--socket=wayland",
+        "--talk-name=org.gtk.vfs", "--talk-name=org.gtk.vfs.*"
+    ],
+    "cleanup": [
+        "/include",
+        "/lib/pkgconfig", "/share/pkgconfig",
+        "/share/aclocal",
+        "/man", "/share/man", "/share/gtk-doc",
+        "*.la", ".a",
+        "/lib/girepository-1.0",
+        "/share/gir-1.0",
+        "/share/doc"
+    ],
+    "modules": [
+        {
+            "name" : "wayland",
+            "buildsystem" : "autotools",
+            "builddir" : true,
+            "config-opts" : [
+                "--disable-documentation"
+            ],
+            "sources" : [
+                {
+                    "type" : "git",
+                    "url" : "https://github.com/wayland-project/wayland.git"
+                }
+            ]
+        },
+        {
+            "name": "graphene",
+            "buildsystem": "meson",
+            "builddir": true,
+            "config-opts": [
+                "--libdir=/app/lib",
+                "-Dtests=false",
+                "-Dbenchmarks=false"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://github.com/ebassi/graphene.git"
+                }
+            ]
+        },
+        {
+            "name": "gtk",
+            "buildsystem": "meson",
+            "builddir": true,
+            "config-opts": [
+                "--libdir=/app/lib"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://gitlab.gnome.org/GNOME/gtk.git"
+                }
+            ]
+        }
+    ]
+}
--- a/build-aux/flatpak/org.gtk.WidgetFactory4.json
+++ b/build-aux/flatpak/org.gtk.WidgetFactory4.json
@@ -1,5 +1,5 @@
 {
-    "app-id": "org.gtk.WidgetFactory",
+    "app-id": "org.gtk.WidgetFactory4",
    "runtime": "org.gnome.Platform",
    "runtime-version": "master",
    "sdk": "org.gnome.Sdk",
@@ -9,10 +9,9 @@
    "finish-args": [
        "--device=dri",
        "--share=ipc",
-        "--socket=x11",
+        "--socket=fallback-x11",
        "--socket=wayland",
-        "--talk-name=org.gtk.vfs", "--talk-name=org.gtk.vfs.*",
-        "--talk-name=ca.desrt.conf", "--env=DCONF_USER_CONFIG_DIR=.config/dconf"
+        "--talk-name=org.gtk.vfs", "--talk-name=org.gtk.vfs.*"
    ],
    "cleanup": [
        "/include",
--- a/build-aux/meson/post-install.py
+++ b/build-aux/meson/post-install.py
@@ -0,0 +1,31 @@
+#!/usr/bin/env python3
+
+import os
+import sys
+import subprocess
+
+if 'DESTDIR' not in os.environ:
+    gtk_api_version = sys.argv[1]
+    gtk_abi_version = sys.argv[2]
+    gtk_libdir = sys.argv[3]
+    gtk_datadir = sys.argv[4]
+
+    gtk_moduledir = os.path.join(gtk_libdir, 'gtk-' + gtk_api_version, gtk_abi_version)
+    gtk_printmodule_dir = os.path.join(gtk_moduledir, 'printbackends')
+    gtk_immodule_dir = os.path.join(gtk_moduledir, 'immodules')
+
+    print('Compiling GSettings schemas...')
+    subprocess.call(['glib-compile-schemas',
+                    os.path.join(gtk_datadir, 'glib-2.0', 'schemas')])
+
+    print('Updating icon cache...')
+    subprocess.call(['gtk4-update-icon-cache', '-q', '-t' ,'-f',
+                    os.path.join(gtk_datadir, 'icons', 'hicolor')])
+
+    print('Updating module cache for print backends...')
+    os.makedirs(gtk_printmodule_dir, exist_ok=True)
+    subprocess.call(['gio-querymodules', gtk_printmodule_dir])
+
+    print('Updating module cache for input methods...')
+    os.makedirs(gtk_immodule_dir, exist_ok=True)
+    subprocess.call(['gio-querymodules', gtk_immodule_dir])
--- a/build-aux/meson/post-install.sh
+++ b/build-aux/meson/post-install.sh
@@ -1,26 +0,0 @@
-#!/bin/sh
-
-gtk_api_version=$1
-gtk_abi_version=$2
-gtk_libdir=$3
-gtk_datadir=$4
-
-# Package managers set this so we don't need to run
-if [ -z "$DESTDIR" ]; then
-  echo Compiling GSettings schemas...
-  glib-compile-schemas ${gtk_datadir}/glib-2.0/schemas
-
-  echo Updating desktop database...
-  update-desktop-database -q ${gtk_datadir}/applications
-
-  echo Updating icon cache...
-  gtk-update-icon-cache -q -t -f ${gtk_datadir}/icons/hicolor
-
-  echo Updating module cache for print backends...
-  mkdir -p ${gtk_libdir}/gtk-4.0/4.0.0/printbackends
-  gio-querymodules ${gtk_libdir}/gtk-4.0/4.0.0/printbackends
-
-  echo Updating module cache for input methods...
-  mkdir -p ${gtk_libdir}/gtk-4.0/4.0.0/immodules
-  gio-querymodules ${gtk_libdir}/gtk-4.0/4.0.0/immodules
-fi
--- a/config.h.meson
+++ b/config.h.meson
@@ -305,13 +305,3 @@
 #mesondefine HAVE_PANGOFT

 #mesondefine ISO_CODES_PREFIX
-
-#mesondefine MALLOC_IS_ALIGNED16
-
-#mesondefine HAVE_POSIX_MEMALIGN
-
-#mesondefine HAVE_MEMALIGN
-
-#mesondefine HAVE_ALIGNED_ALLOC
-
-#mesondefine HAVE__ALIGNED_MALLOC
--- a/demos/gtk-demo/application.c
+++ b/demos/gtk-demo/application.c
@@ -212,7 +212,7 @@ activate_about (GSimpleAction *action,
                         "comments", "Program to demonstrate GTK functions.",
                         "authors", authors,
                         "documenters", documentors,
-                         "logo-icon-name", "org.gtk.Demo",
+                         "logo-icon-name", "org.gtk.Demo4",
                         "title", "About GTK Code Demos",
                         NULL);
 }
@@ -370,7 +370,7 @@ demo_application_init (DemoApplication *app)
  GSettings *settings;
  GAction *action;

-  settings = g_settings_new ("org.gtk.Demo");
+  settings = g_settings_new ("org.gtk.Demo4");

  g_action_map_add_action_entries (G_ACTION_MAP (app),
                                   app_entries, G_N_ELEMENTS (app_entries),
@@ -397,7 +397,7 @@ demo_application_window_store_state (DemoApplicationWindow *win)
 {
  GSettings *settings;

-  settings = g_settings_new ("org.gtk.Demo");
+  settings = g_settings_new ("org.gtk.Demo4");
  g_settings_set (settings, "window-size", "(ii)", win->width, win->height);
  g_settings_set_boolean (settings, "maximized", win->maximized);
  g_settings_set_boolean (settings, "fullscreen", win->fullscreen);
@@ -409,7 +409,7 @@ demo_application_window_load_state (DemoApplicationWindow *win)
 {
  GSettings *settings;

-  settings = g_settings_new ("org.gtk.Demo");
+  settings = g_settings_new ("org.gtk.Demo4");
  g_settings_get (settings, "window-size", "(ii)", &win->width, &win->height);
  win->maximized = g_settings_get_boolean (settings, "maximized");
  win->fullscreen = g_settings_get_boolean (settings, "fullscreen");
@@ -541,7 +541,7 @@ main (int argc, char *argv[])
  GtkApplication *app;

  app = GTK_APPLICATION (g_object_new (demo_application_get_type (),
-                                       "application-id", "org.gtk.Demo2",
+                                       "application-id", "org.gtk.Demo4.App",
                                       "flags", G_APPLICATION_HANDLES_OPEN,
                                       NULL));

--- a/demos/gtk-demo/application.ui
+++ b/demos/gtk-demo/application.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <template class="DemoApplicationWindow" parent="GtkApplicationWindow">
    <property name="title" translatable="yes">Application Class</property>
@@ -32,11 +33,11 @@
                <property name="action-name">win.logo</property>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">0</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">0</property>
-          </packing>
        </child>
        <child>
          <object class="GtkInfoBar" id="infobar">
@@ -63,11 +64,11 @@
                </child>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">1</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkScrolledWindow">
@@ -79,20 +80,20 @@
                <property name="buffer">buffer</property>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">2</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">2</property>
-          </packing>
        </child>
        <child>
          <object class="GtkStatusbar" id="status">
            <property name="hexpand">1</property>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">3</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">3</property>
-          </packing>
        </child>
      </object>
    </child>
--- a/demos/gtk-demo/application_demo.c
+++ b/demos/gtk-demo/application_demo.c
@@ -52,7 +52,7 @@ do_application_demo (GtkWidget *toplevel)

  if (watch == 0)
    watch = g_bus_watch_name (G_BUS_TYPE_SESSION,
-                              "org.gtk.Demo2",
+                              "org.gtk.Demo4.App",
                              0,
                              on_name_appeared,
                              on_name_vanished,
@@ -80,8 +80,8 @@ do_application_demo (GtkWidget *toplevel)
  else
    {
      g_dbus_connection_call_sync (g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL),
-                                   "org.gtk.Demo2",
-                                   "/org/gtk/Demo2",
+                                   "org.gtk.Demo4.App",
+                                   "/org/gtk/Demo4/App",
                                   "org.gtk.Actions",
                                   "Activate",
                                   g_variant_new ("(sava{sv})", "quit", NULL, NULL),
--- a/demos/gtk-demo/appmenu.ui
+++ b/demos/gtk-demo/appmenu.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <menu id="appmenu">
    <section>
--- a/demos/gtk-demo/assistant.c
+++ b/demos/gtk-demo/assistant.c
@@ -80,7 +80,7 @@ on_entry_changed (GtkWidget *widget, gpointer data)

  page_number = gtk_assistant_get_current_page (assistant);
  current_page = gtk_assistant_get_nth_page (assistant, page_number);
-  text = gtk_entry_get_text (GTK_ENTRY (widget));
+  text = gtk_editable_get_text (GTK_EDITABLE (widget));

  if (text && *text)
    gtk_assistant_set_page_complete (assistant, current_page, TRUE);
--- a/demos/gtk-demo/blendmodes.ui
+++ b/demos/gtk-demo/blendmodes.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <requires lib="gtk+" version="3.20"/>
  <object class="GtkWindow" id="window">
@@ -16,11 +17,11 @@
            <style>
              <class name="dim-label"/>
            </style>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">0</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">0</property>
-          </packing>
        </child>
        <child>
          <object class="GtkScrolledWindow" id="scrolledwindow">
@@ -28,22 +29,22 @@
            <property name="vexpand">1</property>
            <property name="shadow-type">in</property>
            <property name="min-content-width">150</property>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">1</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkStackSwitcher">
            <property name="halign">center</property>
            <property name="hexpand">1</property>
            <property name="stack">stack</property>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">0</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">0</property>
-          </packing>
        </child>
        <child>
          <object class="GtkStack" id="stack">
@@ -66,53 +67,53 @@
                    <child>
                      <object class="GtkLabel">
                        <property name="label" translatable="yes">Duck</property>
+                        <layout>
+                          <property name="left-attach">0</property>
+                          <property name="top-attach">0</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">0</property>
-                        <property name="top-attach">0</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkLabel">
                        <property name="label" translatable="yes">Background</property>
+                        <layout>
+                          <property name="left-attach">1</property>
+                          <property name="top-attach">0</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">1</property>
-                        <property name="top-attach">0</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkImage">
                        <style>
                          <class name="duck"/>
                        </style>
+                        <layout>
+                          <property name="left-attach">0</property>
+                          <property name="top-attach">1</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">0</property>
-                        <property name="top-attach">1</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkImage">
                        <style>
                          <class name="gradient"/>
                        </style>
+                        <layout>
+                          <property name="left-attach">1</property>
+                          <property name="top-attach">1</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">1</property>
-                        <property name="top-attach">1</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkLabel">
                        <property name="label" translatable="yes">
 Blended picture</property>
+                        <layout>
+                          <property name="left-attach">0</property>
+                          <property name="top-attach">2</property>
+                          <property name="column-span">2</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">0</property>
-                        <property name="top-attach">2</property>
-                        <property name="width">2</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkImage">
@@ -120,12 +121,12 @@ Blended picture</property>
                        <style>
                          <class name="blend0"/>
                        </style>
+                        <layout>
+                          <property name="left-attach">0</property>
+                          <property name="top-attach">3</property>
+                          <property name="column-span">2</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">0</property>
-                        <property name="top-attach">3</property>
-                        <property name="width">2</property>
-                      </packing>
                    </child>
                  </object>
                </property>
@@ -145,53 +146,53 @@ Blended picture</property>
                    <child>
                      <object class="GtkLabel">
                        <property name="label" translatable="yes">Red</property>
+                        <layout>
+                          <property name="left-attach">0</property>
+                          <property name="top-attach">0</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">0</property>
-                        <property name="top-attach">0</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkLabel">
                        <property name="label" translatable="yes">Blue</property>
+                        <layout>
+                          <property name="left-attach">1</property>
+                          <property name="top-attach">0</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">1</property>
-                        <property name="top-attach">0</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkImage">
                        <style>
                          <class name="red"/>
                        </style>
+                        <layout>
+                          <property name="left-attach">0</property>
+                          <property name="top-attach">1</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">0</property>
-                        <property name="top-attach">1</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkImage">
                        <style>
                          <class name="blue"/>
                        </style>
+                        <layout>
+                          <property name="left-attach">1</property>
+                          <property name="top-attach">1</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">1</property>
-                        <property name="top-attach">1</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkLabel">
                        <property name="label" translatable="yes">
 Blended picture</property>
+                        <layout>
+                          <property name="left-attach">0</property>
+                          <property name="top-attach">2</property>
+                          <property name="column-span">2</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">0</property>
-                        <property name="top-attach">2</property>
-                        <property name="width">2</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkImage">
@@ -199,12 +200,12 @@ Blended picture</property>
                        <style>
                          <class name="blend1"/>
                        </style>
+                        <layout>
+                          <property name="left-attach">0</property>
+                          <property name="top-attach">3</property>
+                          <property name="column-span">2</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">0</property>
-                        <property name="top-attach">3</property>
-                        <property name="width">2</property>
-                      </packing>
                    </child>
                  </object>
                </property>
@@ -227,33 +228,33 @@ Blended picture</property>
                        <style>
                          <class name="cyan"/>
                        </style>
+                        <layout>
+                          <property name="left-attach">0</property>
+                          <property name="top-attach">1</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">0</property>
-                        <property name="top-attach">1</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkImage">
                        <style>
                          <class name="magenta"/>
                        </style>
+                        <layout>
+                          <property name="left-attach">1</property>
+                          <property name="top-attach">1</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">1</property>
-                        <property name="top-attach">1</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkImage">
                        <style>
                          <class name="yellow"/>
                        </style>
+                        <layout>
+                          <property name="left-attach">0</property>
+                          <property name="top-attach">3</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">0</property>
-                        <property name="top-attach">3</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkImage">
@@ -261,11 +262,11 @@ Blended picture</property>
                        <style>
                          <class name="blend2"/>
                        </style>
+                        <layout>
+                          <property name="left-attach">1</property>
+                          <property name="top-attach">3</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">1</property>
-                        <property name="top-attach">3</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkLabel">
@@ -274,11 +275,11 @@ Blended picture</property>
                        <style>
                          <class name="dim-label"/>
                        </style>
+                        <layout>
+                          <property name="left-attach">0</property>
+                          <property name="top-attach">0</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">0</property>
-                        <property name="top-attach">0</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkLabel">
@@ -287,11 +288,11 @@ Blended picture</property>
                        <style>
                          <class name="dim-label"/>
                        </style>
+                        <layout>
+                          <property name="left-attach">1</property>
+                          <property name="top-attach">0</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">1</property>
-                        <property name="top-attach">0</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkLabel">
@@ -300,11 +301,11 @@ Blended picture</property>
                        <style>
                          <class name="dim-label"/>
                        </style>
+                        <layout>
+                          <property name="left-attach">0</property>
+                          <property name="top-attach">2</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">0</property>
-                        <property name="top-attach">2</property>
-                      </packing>
                    </child>
                    <child>
                      <object class="GtkLabel">
@@ -313,21 +314,21 @@ Blended picture</property>
                        <attributes>
                          <attribute name="weight" value="bold"></attribute>
                        </attributes>
+                        <layout>
+                          <property name="left-attach">1</property>
+                          <property name="top-attach">2</property>
+                        </layout>
                      </object>
-                      <packing>
-                        <property name="left-attach">1</property>
-                        <property name="top-attach">2</property>
-                      </packing>
                    </child>
                  </object>
                </property>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">1</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">1</property>
-          </packing>
        </child>
      </object>
    </child>
--- a/demos/gtk-demo/changedisplay.c
+++ b/demos/gtk-demo/changedisplay.c
@@ -71,20 +71,12 @@ find_toplevel_at_pointer (GdkDisplay *display)
  GdkSurface *pointer_window;
  GtkWidget *widget = NULL;

-  pointer_window = gdk_device_get_surface_at_position (gtk_get_current_event_device (),
-                                                      NULL, NULL);
+  pointer_window = gdk_device_get_surface_at_position (gtk_get_current_event_device (), NULL, NULL);

-  /* The user data field of a GdkSurface is used to store a pointer
-   * to the widget that created it.
-   */
  if (pointer_window)
-    {
-      gpointer widget_ptr;
-      gdk_surface_get_user_data (pointer_window, &widget_ptr);
-      widget = widget_ptr;
-    }
+    widget = GTK_WIDGET (gtk_bud_get_for_surface (pointer_window));

-  return widget ? gtk_widget_get_toplevel (widget) : NULL;
+  return widget;
 }

 static void
--- a/demos/gtk-demo/clipboard.c
+++ b/demos/gtk-demo/clipboard.c
@@ -28,7 +28,7 @@ copy_button_clicked (GtkWidget *button,
  clipboard = gtk_widget_get_clipboard (entry);

  /* Set clipboard text */
-  gdk_clipboard_set_text (clipboard, gtk_entry_get_text (GTK_ENTRY (entry)));
+  gdk_clipboard_set_text (clipboard, gtk_editable_get_text (GTK_EDITABLE (entry)));
 }

 void
@@ -50,7 +50,7 @@ paste_received (GObject      *source_object,
  if (text)
    {
      /* Set the entry text */
-      gtk_entry_set_text (GTK_ENTRY (entry), text);
+      gtk_editable_set_text (GTK_EDITABLE (entry), text);
      g_free (text);
    }
  else
--- a/demos/gtk-demo/combobox.c
+++ b/demos/gtk-demo/combobox.c
@@ -256,7 +256,7 @@ mask_entry_set_background (MaskEntry *entry)
 {
  if (entry->mask)
    {
-      if (!g_regex_match_simple (entry->mask, gtk_entry_get_text (GTK_ENTRY (entry)), 0, 0))
+      if (!g_regex_match_simple (entry->mask, gtk_editable_get_text (GTK_EDITABLE (entry)), 0, 0))
        {
          PangoAttrList *attrs;

--- a/demos/gtk-demo/css_basics.c
+++ b/demos/gtk-demo/css_basics.c
@@ -13,19 +13,22 @@ show_parsing_error (GtkCssProvider *provider,
                    const GError   *error,
                    GtkTextBuffer  *buffer)
 {
+  const GtkCssLocation *start_location, *end_location;
  GtkTextIter start, end;
  const char *tag_name;

+  start_location = gtk_css_section_get_start_location (section);
  gtk_text_buffer_get_iter_at_line_index (buffer,
                                          &start,
-                                          gtk_css_section_get_start_line (section),
-                                          gtk_css_section_get_start_position (section));
+                                          start_location->lines,
+                                          start_location->line_bytes);
+  end_location = gtk_css_section_get_end_location (section);
  gtk_text_buffer_get_iter_at_line_index (buffer,
                                          &end,
-                                          gtk_css_section_get_end_line (section),
-                                          gtk_css_section_get_end_position (section));
+                                          end_location->lines,
+                                          end_location->line_bytes);

-  if (g_error_matches (error, GTK_CSS_PROVIDER_ERROR, GTK_CSS_PROVIDER_ERROR_DEPRECATED))
+  if (error->domain == GTK_CSS_PARSER_WARNING)
    tag_name = "warning";
  else
    tag_name = "error";
--- a/demos/gtk-demo/css_multiplebgs.c
+++ b/demos/gtk-demo/css_multiplebgs.c
@@ -13,19 +13,23 @@ show_parsing_error (GtkCssProvider *provider,
                    const GError   *error,
                    GtkTextBuffer  *buffer)
 {
+  const GtkCssLocation *start_location, *end_location;
  GtkTextIter start, end;
  const char *tag_name;

+  start_location = gtk_css_section_get_start_location (section);
  gtk_text_buffer_get_iter_at_line_index (buffer,
                                          &start,
-                                          gtk_css_section_get_start_line (section),
-                                          gtk_css_section_get_start_position (section));
+                                          start_location->lines,
+                                          start_location->line_bytes);
+  end_location = gtk_css_section_get_end_location (section);
  gtk_text_buffer_get_iter_at_line_index (buffer,
                                          &end,
-                                          gtk_css_section_get_end_line (section),
-                                          gtk_css_section_get_end_position (section));
+                                          end_location->lines,
+                                          end_location->line_bytes);

-  if (g_error_matches (error, GTK_CSS_PROVIDER_ERROR, GTK_CSS_PROVIDER_ERROR_DEPRECATED))
+
+  if (error->domain == GTK_CSS_PARSER_WARNING)
    tag_name = "warning";
  else
    tag_name = "error";
--- a/demos/gtk-demo/css_pixbufs.c
+++ b/demos/gtk-demo/css_pixbufs.c
@@ -12,19 +12,23 @@ show_parsing_error (GtkCssProvider *provider,
                    const GError   *error,
                    GtkTextBuffer  *buffer)
 {
+  const GtkCssLocation *start_location, *end_location;
  GtkTextIter start, end;
  const char *tag_name;

+  start_location = gtk_css_section_get_start_location (section);
  gtk_text_buffer_get_iter_at_line_index (buffer,
                                          &start,
-                                          gtk_css_section_get_start_line (section),
-                                          gtk_css_section_get_start_position (section));
+                                          start_location->lines,
+                                          start_location->line_bytes);
+  end_location = gtk_css_section_get_end_location (section);
  gtk_text_buffer_get_iter_at_line_index (buffer,
                                          &end,
-                                          gtk_css_section_get_end_line (section),
-                                          gtk_css_section_get_end_position (section));
+                                          end_location->lines,
+                                          end_location->line_bytes);

-  if (g_error_matches (error, GTK_CSS_PROVIDER_ERROR, GTK_CSS_PROVIDER_ERROR_DEPRECATED))
+
+  if (error->domain == GTK_CSS_PARSER_WARNING)
    tag_name = "warning";
  else
    tag_name = "error";
--- a/demos/gtk-demo/css_shadows.c
+++ b/demos/gtk-demo/css_shadows.c
@@ -11,19 +11,22 @@ show_parsing_error (GtkCssProvider *provider,
                    const GError   *error,
                    GtkTextBuffer  *buffer)
 {
+  const GtkCssLocation *start_location, *end_location;
  GtkTextIter start, end;
  const char *tag_name;

+  start_location = gtk_css_section_get_start_location (section);
  gtk_text_buffer_get_iter_at_line_index (buffer,
                                          &start,
-                                          gtk_css_section_get_start_line (section),
-                                          gtk_css_section_get_start_position (section));
+                                          start_location->lines,
+                                          start_location->line_bytes);
+  end_location = gtk_css_section_get_end_location (section);
  gtk_text_buffer_get_iter_at_line_index (buffer,
                                          &end,
-                                          gtk_css_section_get_end_line (section),
-                                          gtk_css_section_get_end_position (section));
+                                          end_location->lines,
+                                          end_location->line_bytes);

-  if (g_error_matches (error, GTK_CSS_PROVIDER_ERROR, GTK_CSS_PROVIDER_ERROR_DEPRECATED))
+  if (error->domain == GTK_CSS_PARSER_WARNING)
    tag_name = "warning";
  else
    tag_name = "error";
--- a/demos/gtk-demo/cursors.ui
+++ b/demos/gtk-demo/cursors.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="GdkCursor" id="default_cursor">
    <property name="name">default</property>
--- a/demos/gtk-demo/data/scalable/apps/org.gtk.Demo4.svg
+++ b/demos/gtk-demo/data/scalable/apps/org.gtk.Demo4.svg
--- a/demos/gtk-demo/data/symbolic/apps/org.gtk.Demo4-symbolic.svg
+++ b/demos/gtk-demo/data/symbolic/apps/org.gtk.Demo4-symbolic.svg
@@ -10,7 +10,7 @@
   xmlns="http://www.w3.org/2000/svg"
   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   sodipodi:docname="org.gtk.Demo-symbolic.svg"
+   sodipodi:docname="org.gtk.Demo4-symbolic.svg"
   height="16.03125"
   id="svg7384"
   inkscape:version="0.92.4 5da689c313, 2019-01-14"
--- a/demos/gtk-demo/demo.gresource.xml
+++ b/demos/gtk-demo/demo.gresource.xml
@@ -163,6 +163,7 @@
    <file>expander.c</file>
    <file>filtermodel.c</file>
    <file>fishbowl.c</file>
+    <file>fixed.c</file>
    <file>flowbox.c</file>
    <file>foreigndrawing.c</file>
    <file>font_features.c</file>
@@ -189,6 +190,7 @@
    <file>paintable_animated.c</file>
    <file>paintable_mediastream.c</file>
    <file>panes.c</file>
+    <file>password_entry.c</file>
    <file>pickers.c</file>
    <file>pixbufs.c</file>
    <file>popover.c</file>
@@ -206,6 +208,7 @@
    <file>spinbutton.c</file>
    <file>spinner.c</file>
    <file>tabs.c</file>
+    <file>tagged_entry.c</file>
    <file>textview.c</file>
    <file>textscroll.c</file>
    <file>theming_style_classes.c</file>
@@ -217,6 +220,9 @@
  <gresource prefix="/textview">
    <file>floppybuddy.gif</file>
  </gresource>
+  <gresource prefix="/tagged_entry">
+    <file>tagstyle.css</file>
+  </gresource>
  <gresource prefix="/listbox">
    <file>listbox.ui</file>
    <file>messages.txt</file>
@@ -261,7 +267,14 @@
  <gresource prefix="/dnd">
    <file>dnd.css</file>
  </gresource>
-  <gresource prefix="/org/gtk/Demo">
+  <gresource prefix="/tagged_entry">
+    <file>demotaggedentry.c</file>
+    <file>demotaggedentry.h</file>
+  </gresource>
+  <gresource prefix="/fixed">
+    <file>fixed.css</file>
+  </gresource>
+  <gresource prefix="/org/gtk/Demo4">
    <file>icons/16x16/actions/application-exit.png</file>
    <file>icons/16x16/actions/document-new.png</file>
    <file>icons/16x16/actions/document-open.png</file>
--- a/demos/gtk-demo/demo.ui
+++ b/demos/gtk-demo/demo.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="GtkListStore" id="liststore1">
    <columns>
--- a/demos/gtk-demo/demotaggedentry.c
+++ b/demos/gtk-demo/demotaggedentry.c
@@ -0,0 +1,493 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2019 Red Hat, Inc.
+ *
+ * Authors:
+ * - Matthias Clasen <mclasen@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "demotaggedentry.h"
+
+#include <gtk/gtk.h>
+#include <gtk/gtk-a11y.h>
+
+typedef struct {
+  GtkWidget *box;
+  GtkWidget *entry;
+} DemoTaggedEntryPrivate;
+
+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);
+
+  gtk_widget_set_has_surface (GTK_WIDGET (entry), FALSE);
+
+  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_container_add (GTK_CONTAINER (priv->box), priv->entry);
+  gtk_editable_init_delegate (GTK_EDITABLE (entry));
+}
+
+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)
+    gtk_editable_finish_delegate (GTK_EDITABLE (entry));
+
+  g_clear_pointer (&priv->entry, gtk_widget_unparent);
+  g_clear_pointer (&priv->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,
+                                const GValue *value,
+                                GParamSpec   *pspec)
+{
+  if (gtk_editable_delegate_set_property (object, prop_id, value, pspec))
+    return;
+
+  G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+}
+
+static void
+demo_tagged_entry_get_property (GObject    *object,
+                                guint       prop_id,
+                                GValue     *value,
+                                GParamSpec *pspec)
+{
+  if (gtk_editable_delegate_get_property (object, prop_id, value, pspec))
+    return;
+
+  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 void
+demo_tagged_entry_grab_focus (GtkWidget *widget)
+{
+  DemoTaggedEntry *entry = DEMO_TAGGED_ENTRY (widget);
+  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
+
+  gtk_widget_grab_focus (priv->entry);
+}
+
+static void
+demo_tagged_entry_class_init (DemoTaggedEntryClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (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_accessible_type (widget_class, GTK_TYPE_ENTRY_ACCESSIBLE);
+  gtk_widget_class_set_css_name (widget_class, "entry");
+}
+
+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);
+}
+
+static void
+demo_tagged_entry_editable_init (GtkEditableInterface *iface)
+{
+  iface->get_delegate = demo_tagged_entry_get_delegate;
+}
+
+GtkWidget *
+demo_tagged_entry_new (void)
+{
+  return GTK_WIDGET (g_object_new (DEMO_TYPE_TAGGED_ENTRY, NULL));
+}
+
+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_container_add (GTK_CONTAINER (priv->box), tag);
+}
+
+void
+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_container_add (GTK_CONTAINER (priv->box), tag);
+  else
+    gtk_box_insert_child_after (GTK_BOX (priv->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_container_remove (GTK_CONTAINER (priv->box), tag);
+}
+
+struct _DemoTaggedEntryTag
+{
+  GtkWidget parent;
+  GtkWidget *box;
+  GtkWidget *label;
+  GtkWidget *button;
+
+  gboolean has_close_button;
+  char *style;
+};
+
+struct _DemoTaggedEntryTagClass
+{
+  GtkWidgetClass parent_class;
+};
+
+enum {
+  PROP_0,
+  PROP_LABEL,
+  PROP_HAS_CLOSE_BUTTON,
+};
+
+enum {
+  SIGNAL_CLICKED,
+  SIGNAL_BUTTON_CLICKED,
+  LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0, };
+
+G_DEFINE_TYPE (DemoTaggedEntryTag, demo_tagged_entry_tag, GTK_TYPE_WIDGET)
+
+static void
+on_released (GtkGestureMultiPress *gesture,
+             int                   n_press,
+             double                x,
+             double                y,
+             DemoTaggedEntryTag          *tag)
+{
+  g_signal_emit (tag, signals[SIGNAL_CLICKED], 0);
+}
+
+static void
+demo_tagged_entry_tag_init (DemoTaggedEntryTag *tag)
+{
+  GtkGesture *gesture;
+  GtkCssProvider *provider;
+
+  gtk_widget_set_has_surface (GTK_WIDGET (tag), FALSE);
+
+  tag->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+  gtk_widget_set_parent (tag->box, GTK_WIDGET (tag));
+  tag->label = gtk_label_new ("");
+  gtk_container_add (GTK_CONTAINER (tag->box), tag->label);
+
+  gesture = gtk_gesture_multi_press_new ();
+  g_signal_connect (gesture, "released", G_CALLBACK (on_released), tag);
+  gtk_widget_add_controller (GTK_WIDGET (tag), GTK_EVENT_CONTROLLER (gesture));
+
+  provider = gtk_css_provider_new ();
+  gtk_css_provider_load_from_resource (provider, "/tagged_entry/tagstyle.css");
+  gtk_style_context_add_provider_for_display (gdk_display_get_default (),
+                                              GTK_STYLE_PROVIDER (provider),
+                                              800);
+  g_object_unref (provider);
+}
+
+static void
+demo_tagged_entry_tag_dispose (GObject *object)
+{
+  DemoTaggedEntryTag *tag = DEMO_TAGGED_ENTRY_TAG (object);
+
+  g_clear_pointer (&tag->box, gtk_widget_unparent);
+
+  G_OBJECT_CLASS (demo_tagged_entry_tag_parent_class)->dispose (object);
+}
+
+static void
+demo_tagged_entry_tag_finalize (GObject *object)
+{
+  DemoTaggedEntryTag *tag = DEMO_TAGGED_ENTRY_TAG (object);
+
+  g_clear_pointer (&tag->box, gtk_widget_unparent);
+  g_clear_pointer (&tag->style, g_free);
+
+  G_OBJECT_CLASS (demo_tagged_entry_tag_parent_class)->finalize (object);
+}
+
+static void
+demo_tagged_entry_tag_set_property (GObject      *object,
+                                    guint         prop_id,
+                                    const GValue *value,
+                                    GParamSpec   *pspec)
+{
+  DemoTaggedEntryTag *tag = DEMO_TAGGED_ENTRY_TAG (object);
+
+  switch (prop_id)
+    {
+    case PROP_LABEL:
+      demo_tagged_entry_tag_set_label (tag, g_value_get_string (value));
+      break;
+
+    case PROP_HAS_CLOSE_BUTTON:
+      demo_tagged_entry_tag_set_has_close_button (tag, g_value_get_boolean (value));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+demo_tagged_entry_tag_get_property (GObject    *object,
+                                    guint       prop_id,
+                                    GValue     *value,
+                                    GParamSpec *pspec)
+{
+  DemoTaggedEntryTag *tag = DEMO_TAGGED_ENTRY_TAG (object);
+
+  switch (prop_id)
+    {
+    case PROP_LABEL:
+      g_value_set_string (value, demo_tagged_entry_tag_get_label (tag));
+      break;
+
+    case PROP_HAS_CLOSE_BUTTON:
+      g_value_set_boolean (value, demo_tagged_entry_tag_get_has_close_button (tag));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+demo_tagged_entry_tag_measure (GtkWidget      *widget,
+                               GtkOrientation  orientation,
+                               int             for_size,
+                               int            *minimum,
+                               int            *natural,
+                               int            *minimum_baseline,
+                               int            *natural_baseline)
+{
+  DemoTaggedEntryTag *tag = DEMO_TAGGED_ENTRY_TAG (widget);
+
+  gtk_widget_measure (tag->box, orientation, for_size,
+                      minimum, natural,
+                      minimum_baseline, natural_baseline);
+}
+
+static void
+demo_tagged_entry_tag_size_allocate (GtkWidget *widget,
+                                     int        width,
+                                     int        height,
+                                     int        baseline)
+{
+  DemoTaggedEntryTag *tag = DEMO_TAGGED_ENTRY_TAG (widget);
+
+  gtk_widget_size_allocate (tag->box,
+                            &(GtkAllocation) { 0, 0, width, height },
+                            baseline);
+}
+
+static void
+demo_tagged_entry_tag_class_init (DemoTaggedEntryTagClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
+
+  object_class->dispose = demo_tagged_entry_tag_dispose;
+  object_class->finalize = demo_tagged_entry_tag_finalize;
+  object_class->set_property = demo_tagged_entry_tag_set_property;
+  object_class->get_property = demo_tagged_entry_tag_get_property;
+
+  widget_class->measure = demo_tagged_entry_tag_measure;
+  widget_class->size_allocate = demo_tagged_entry_tag_size_allocate;
+
+  signals[SIGNAL_CLICKED] =
+      g_signal_new ("clicked",
+                    DEMO_TYPE_TAGGED_ENTRY_TAG,
+                    G_SIGNAL_RUN_FIRST,
+                    0, NULL, NULL, NULL,
+                    G_TYPE_NONE, 0);
+  signals[SIGNAL_BUTTON_CLICKED] =
+      g_signal_new ("button-clicked",
+                    DEMO_TYPE_TAGGED_ENTRY_TAG,
+                    G_SIGNAL_RUN_FIRST,
+                    0, NULL, NULL, NULL,
+                    G_TYPE_NONE, 0);
+
+  g_object_class_install_property (object_class, PROP_LABEL,
+      g_param_spec_string ("label", "Label", "Label",
+                           NULL, G_PARAM_READWRITE));
+  g_object_class_install_property (object_class, PROP_HAS_CLOSE_BUTTON,
+      g_param_spec_boolean ("has-close-button", "Has close button", "Whether this tag has a close button",
+                            FALSE, G_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
+
+  gtk_widget_class_set_css_name (widget_class, "tag");
+}
+
+DemoTaggedEntryTag *
+demo_tagged_entry_tag_new (const char *label)
+{
+  return DEMO_TAGGED_ENTRY_TAG (g_object_new (DEMO_TYPE_TAGGED_ENTRY_TAG,
+                                              "label", label,
+                                              NULL));
+}
+
+const char *
+demo_tagged_entry_tag_get_label (DemoTaggedEntryTag *tag)
+{
+  g_return_val_if_fail (DEMO_IS_TAGGED_ENTRY_TAG (tag), NULL);
+
+  return gtk_label_get_label (GTK_LABEL (tag->label));
+}
+
+void
+demo_tagged_entry_tag_set_label (DemoTaggedEntryTag *tag,
+                                 const char         *label)
+{
+  g_return_if_fail (DEMO_IS_TAGGED_ENTRY_TAG (tag));
+
+  gtk_label_set_label (GTK_LABEL (tag->label), label);
+}
+
+static void
+on_button_clicked (GtkButton          *button,
+                   DemoTaggedEntryTag *tag)
+{
+  g_signal_emit (tag, signals[SIGNAL_BUTTON_CLICKED], 0);
+}
+
+void
+demo_tagged_entry_tag_set_has_close_button (DemoTaggedEntryTag *tag,
+                                            gboolean            has_close_button)
+{
+  g_return_if_fail (DEMO_IS_TAGGED_ENTRY_TAG (tag));
+
+  if ((tag->button != NULL) == has_close_button)
+    return;
+
+  if (!has_close_button && tag->button)
+    {
+      gtk_container_remove (GTK_CONTAINER (tag->box), tag->button);
+      tag->button = NULL;
+    }
+  else if (has_close_button && tag->button == NULL)
+    {
+      GtkWidget *image;
+
+      image = gtk_image_new_from_icon_name ("window-close-symbolic");
+      tag->button = gtk_button_new ();
+      gtk_container_add (GTK_CONTAINER (tag->button), image);
+      gtk_widget_set_halign (tag->button, GTK_ALIGN_CENTER);
+      gtk_widget_set_valign (tag->button, GTK_ALIGN_CENTER);
+      gtk_button_set_relief (GTK_BUTTON (tag->button), GTK_RELIEF_NONE);
+      gtk_container_add (GTK_CONTAINER (tag->box), tag->button);
+      g_signal_connect (tag->button, "clicked", G_CALLBACK (on_button_clicked), tag);
+    }
+
+  g_object_notify (G_OBJECT (tag), "has-close-button");
+}
+
+gboolean
+demo_tagged_entry_tag_get_has_close_button (DemoTaggedEntryTag *tag)
+{
+  g_return_val_if_fail (DEMO_IS_TAGGED_ENTRY_TAG (tag), FALSE);
+
+  return tag->button != NULL;
+}
--- a/demos/gtk-demo/demotaggedentry.h
+++ b/demos/gtk-demo/demotaggedentry.h
@@ -0,0 +1,89 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2019 Red Hat, Inc.
+ *
+ * Authors:
+ * - Matthias Clasen <mclasen@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __DEMO_TAGGED_ENTRY_H__
+#define __DEMO_TAGGED_ENTRY_H__
+
+#include <gtk/gtk.h>
+
+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))
+
+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;
+
+GtkWidget *     demo_tagged_entry_new     (void);
+
+void            demo_tagged_entry_add_tag (DemoTaggedEntry *entry,
+                                           GtkWidget       *tag);
+
+void            demo_tagged_entry_insert_tag_after (DemoTaggedEntry *entry,
+                                                    GtkWidget       *tag,
+                                                    GtkWidget       *sibling);
+
+void            demo_tagged_entry_remove_tag (DemoTaggedEntry *entry,
+                                              GtkWidget       *tag);
+
+DemoTaggedEntryTag *
+                demo_tagged_entry_tag_new (const char *label);
+
+const char *    demo_tagged_entry_tag_get_label (DemoTaggedEntryTag *tag);
+
+void            demo_tagged_entry_tag_set_label (DemoTaggedEntryTag *tag,
+                                                 const char         *label);
+
+gboolean        demo_tagged_entry_tag_get_has_close_button (DemoTaggedEntryTag *tag);
+
+void            demo_tagged_entry_tag_set_has_close_button (DemoTaggedEntryTag *tag,
+                                                            gboolean            has_close_button);
+
+G_END_DECLS
+
+#endif /* __DEMO_TAGGED_ENTRY_H__ */
--- a/demos/gtk-demo/dialog.c
+++ b/demos/gtk-demo/dialog.c
@@ -69,7 +69,7 @@ interactive_dialog_clicked (GtkButton *button,
  label = gtk_label_new_with_mnemonic ("_Entry 1");
  gtk_grid_attach (GTK_GRID (table), label, 0, 0, 1, 1);
  local_entry1 = gtk_entry_new ();
-  gtk_entry_set_text (GTK_ENTRY (local_entry1), gtk_entry_get_text (GTK_ENTRY (entry1)));
+  gtk_editable_set_text (GTK_EDITABLE (local_entry1), gtk_editable_get_text (GTK_EDITABLE (entry1)));
  gtk_grid_attach (GTK_GRID (table), local_entry1, 1, 0, 1, 1);
  gtk_label_set_mnemonic_widget (GTK_LABEL (label), local_entry1);

@@ -77,7 +77,7 @@ interactive_dialog_clicked (GtkButton *button,
  gtk_grid_attach (GTK_GRID (table), label, 0, 1, 1, 1);

  local_entry2 = gtk_entry_new ();
-  gtk_entry_set_text (GTK_ENTRY (local_entry2), gtk_entry_get_text (GTK_ENTRY (entry2)));
+  gtk_editable_set_text (GTK_EDITABLE (local_entry2), gtk_editable_get_text (GTK_EDITABLE (entry2)));
  gtk_grid_attach (GTK_GRID (table), local_entry2, 1, 1, 1, 1);
  gtk_label_set_mnemonic_widget (GTK_LABEL (label), local_entry2);

@@ -85,8 +85,8 @@ interactive_dialog_clicked (GtkButton *button,

  if (response == GTK_RESPONSE_OK)
    {
-      gtk_entry_set_text (GTK_ENTRY (entry1), gtk_entry_get_text (GTK_ENTRY (local_entry1)));
-      gtk_entry_set_text (GTK_ENTRY (entry2), gtk_entry_get_text (GTK_ENTRY (local_entry2)));
+      gtk_editable_set_text (GTK_EDITABLE (entry1), gtk_editable_get_text (GTK_EDITABLE (local_entry1)));
+      gtk_editable_set_text (GTK_EDITABLE (entry2), gtk_editable_get_text (GTK_EDITABLE (local_entry2)));
    }

  gtk_widget_destroy (dialog);
--- a/demos/gtk-demo/dnd.c
+++ b/demos/gtk-demo/dnd.c
@@ -196,10 +196,10 @@ edit_label_done (GtkWidget *entry, gpointer data)
  GtkWidget *label;
  int x, y;

-  gtk_container_child_get (GTK_CONTAINER (fixed), entry, "x", &x, "y", &y, NULL);
+  gtk_fixed_get_child_position (GTK_FIXED (fixed), entry, &x, &y);

  label = GTK_WIDGET (g_object_get_data (G_OBJECT (entry), "label"));
-  gtk_label_set_text (GTK_LABEL (label), gtk_entry_get_text (GTK_ENTRY (entry)));
+  gtk_label_set_text (GTK_LABEL (label), gtk_editable_get_text (GTK_EDITABLE (entry)));

  gtk_widget_destroy (entry);
 }
@@ -210,7 +210,7 @@ edit_cb (GtkWidget *child)
  GtkWidget *fixed = gtk_widget_get_parent (child);
  int x, y;

-  gtk_container_child_get (GTK_CONTAINER (fixed), child, "x", &x, "y", &y, NULL);
+  gtk_fixed_get_child_position (GTK_FIXED (fixed), child, &x, &y);

  if (GTK_IS_LABEL (child))
    {
@@ -218,7 +218,7 @@ edit_cb (GtkWidget *child)

      g_object_set_data (G_OBJECT (entry), "label", child);

-      gtk_entry_set_text (GTK_ENTRY (entry), gtk_label_get_text (GTK_LABEL (child)));
+      gtk_editable_set_text (GTK_EDITABLE (entry), gtk_label_get_text (GTK_LABEL (child)));
      g_signal_connect (entry, "activate", G_CALLBACK (edit_label_done), NULL);
      gtk_fixed_put (GTK_FIXED (fixed), entry, x, y);
      gtk_widget_grab_focus (entry);
@@ -243,7 +243,7 @@ pressed_cb (GtkGesture *gesture,
  GtkWidget *child;

  widget = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture));
-  child = gtk_widget_pick (widget, x, y);
+  child = gtk_widget_pick (widget, x, y, GTK_PICK_DEFAULT);

  if (gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture)) == GDK_BUTTON_SECONDARY)
    {
@@ -320,7 +320,7 @@ released_cb (GtkGesture *gesture,
  GtkWidget *child;

  widget = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture));
-  child = gtk_widget_pick (widget, x, y);
+  child = gtk_widget_pick (widget, x, y, 0);

  if (gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture)) == GDK_BUTTON_PRIMARY)
    {
--- a/demos/gtk-demo/filtermodel.ui
+++ b/demos/gtk-demo/filtermodel.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <requires lib="gtk+" version="3.16"/>
  <object class="GtkListStore" id="liststore1">
@@ -44,11 +45,11 @@
            <accessibility>
              <relation type="label-for" target="treeview1"/>
            </accessibility>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">0</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">0</property>
-          </packing>
        </child>
        <child>
          <object class="GtkTreeView" id="treeview1">
@@ -83,11 +84,11 @@
            <accessibility>
              <relation type="labelled-by" target="label1"/>
            </accessibility>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">1</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkTreeView" id="treeview2">
@@ -134,11 +135,11 @@
            <accessibility>
              <relation type="labelled-by" target="label2"/>
            </accessibility>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">1</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="label2">
@@ -150,11 +151,11 @@
            <accessibility>
              <relation type="label-for" target="treeview2"/>
            </accessibility>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">0</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">0</property>
-          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="label3">
@@ -166,11 +167,11 @@
            <accessibility>
              <relation type="label-for" target="treeview3"/>
            </accessibility>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">2</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">2</property>
-          </packing>
        </child>
        <child>
          <object class="GtkTreeView" id="treeview3">
@@ -199,11 +200,11 @@
            <accessibility>
              <relation type="labelled-by" target="label3"/>
            </accessibility>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">3</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">3</property>
-          </packing>
        </child>
      </object>
    </child>
--- a/demos/gtk-demo/fishbowl.ui
+++ b/demos/gtk-demo/fishbowl.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="GtkWindow" id="window">
    <property name="title" translatable="yes">Fishbowl</property>
@@ -23,58 +24,40 @@
            </child>
          </object>
        </child>
-        <child>
+        <child type="end">
          <object class="GtkLabel">
            <property name="label">fps</property>
          </object>
-          <packing>
-            <property name="pack-type">end</property>
-          </packing>
        </child>
-        <child>
+        <child type="end">
          <object class="GtkLabel">
            <property name="label" bind-source="bowl" bind-property="framerate"/>
          </object>
-          <packing>
-            <property name="pack-type">end</property>
-          </packing>
        </child>
-        <child>
+        <child type="end">
          <object class="GtkLabel">
            <property name="label">Icons, </property>
          </object>
-          <packing>
-            <property name="pack-type">end</property>
-          </packing>
        </child>
-        <child>
+        <child type="end">
          <object class="GtkLabel">
            <property name="label" bind-source="bowl" bind-property="count"/>
          </object>
-          <packing>
-            <property name="pack-type">end</property>
-          </packing>
        </child>
-        <child>
+        <child type="end">
          <object class="GtkToggleButton" id="changes_allow">
            <property name="visible" bind-source="changes_allow" bind-property="active" bind-flags="invert-boolean"/>
            <property name="icon-name">changes-allow</property>
            <property name="relief">none</property>
          </object>
-          <packing>
-            <property name="pack-type">end</property>
-          </packing>
        </child>
-        <child>
+        <child type="end">
          <object class="GtkToggleButton" id="changes_prevent">
-            <property name="active" bind-source="changes_allow" bind-property="active" bind-flags="bidirectional|invert-boolean">1</property>
-            <property name="visible" bind-source="changes_prevent" bind-property="active" bind-flags="invert-boolean">0</property>
+            <property name="active" bind-source="changes_allow" bind-property="active" bind-flags="bidirectional|invert-boolean"/>
+            <property name="visible" bind-source="changes_prevent" bind-property="active" bind-flags="invert-boolean"/>
            <property name="icon-name">changes-prevent</property>
            <property name="relief">none</property>
          </object>
-          <packing>
-            <property name="pack-type">end</property>
-          </packing>
        </child>
      </object>
    </child>
@@ -82,7 +65,7 @@
      <object class="GtkFishbowl" id="bowl">
        <property name="visible">True</property>
        <property name="animating">True</property>
-        <property name="benchmark" bind-source="changes_allow" bind-property="active" bind-flags="invert-boolean">1</property>
+        <property name="benchmark" bind-source="changes_allow" bind-property="active" bind-flags="invert-boolean"/>
      </object>
    </child>
  </object>
--- a/demos/gtk-demo/fixed.c
+++ b/demos/gtk-demo/fixed.c
@@ -0,0 +1,167 @@
+/* Fixed layout
+ *
+ * GtkFixed is a container that allows placing and transforming
+ * widgets manually.
+ */
+
+#include <gtk/gtk.h>
+
+/* This enumeration determines the paint order */
+enum {
+  FACE_BACK,
+  FACE_LEFT,
+  FACE_BOTTOM,
+  FACE_RIGHT,
+  FACE_TOP,
+  FACE_FRONT,
+
+  N_FACES
+};
+
+/* Map face widgets to CSS classes */
+static struct {
+  GtkWidget *face;
+  const char *css_class;
+} faces[N_FACES] = {
+  [FACE_BACK] = { NULL, "back", },
+  [FACE_LEFT] = { NULL, "left", },
+  [FACE_RIGHT] = { NULL, "right", },
+  [FACE_TOP] = { NULL, "top", },
+  [FACE_BOTTOM] = { NULL, "bottom", },
+  [FACE_FRONT] = { NULL, "front", },
+};
+
+static GtkWidget *
+create_faces (void)
+{
+  GtkWidget *fixed = gtk_fixed_new ();
+  int face_size = 200;
+  float w, h, d, p;
+
+  gtk_widget_set_overflow (fixed, GTK_OVERFLOW_VISIBLE);
+
+  w = (float) face_size / 2.f;
+  h = (float) face_size / 2.f;
+  d = (float) face_size / 2.f;
+  p = face_size * 3.f;
+
+  for (int i = 0; i < N_FACES; i++)
+    {
+      GskTransform *transform = NULL;
+
+      /* Add a face */
+      faces[i].face = gtk_frame_new (NULL);
+      gtk_widget_set_size_request (faces[i].face, face_size, face_size);
+      gtk_style_context_add_class (gtk_widget_get_style_context (faces[i].face), faces[i].css_class);
+      gtk_container_add (GTK_CONTAINER (fixed), faces[i].face);
+
+      /* Set up the transformation for each face */
+      transform = gsk_transform_translate (transform, &GRAPHENE_POINT_INIT (w, h));
+      transform = gsk_transform_perspective (transform, p);
+      transform = gsk_transform_rotate_3d (transform, -30.f, graphene_vec3_x_axis ());
+      transform = gsk_transform_rotate_3d (transform, 135.f, graphene_vec3_y_axis ());
+      transform = gsk_transform_translate_3d (transform, &GRAPHENE_POINT3D_INIT (0, 0, -face_size / 6.f));
+
+      switch (i)
+        {
+        case FACE_FRONT:
+          transform = gsk_transform_rotate_3d (transform, 0.f, graphene_vec3_y_axis ());
+          break;
+
+        case FACE_BACK:
+          transform = gsk_transform_rotate_3d (transform, -180.f, graphene_vec3_y_axis ());
+          break;
+
+        case FACE_RIGHT:
+          transform = gsk_transform_rotate_3d (transform, 90.f, graphene_vec3_y_axis ());
+          break;
+
+        case FACE_LEFT:
+          transform = gsk_transform_rotate_3d (transform, -90.f, graphene_vec3_y_axis ());
+          break;
+
+        case FACE_TOP:
+          transform = gsk_transform_rotate_3d (transform, 90.f, graphene_vec3_x_axis ());
+          break;
+
+        case FACE_BOTTOM:
+          transform = gsk_transform_rotate_3d (transform, -90.f, graphene_vec3_x_axis ());
+          break;
+
+        default:
+          break;
+        }
+
+      transform = gsk_transform_translate_3d (transform, &GRAPHENE_POINT3D_INIT (0, 0, d));
+      transform = gsk_transform_translate_3d (transform, &GRAPHENE_POINT3D_INIT (-w, -h, 0));
+
+      gtk_fixed_set_child_transform (GTK_FIXED (fixed), faces[i].face, transform);
+      gsk_transform_unref (transform);
+    }
+
+  return fixed;
+}
+
+static GtkWidget *demo_window = NULL;
+static GtkCssProvider *provider = NULL;
+
+static void
+close_window (GtkWidget *widget)
+{
+  /* Reset the state */
+  for (int i = 0; i < N_FACES; i++)
+    faces[i].face = NULL;
+
+  gtk_style_context_remove_provider_for_display (gdk_display_get_default (),
+                                                 GTK_STYLE_PROVIDER (provider));
+  provider = NULL;
+
+  demo_window = NULL;
+}
+
+static GtkWidget *
+create_demo_window (GtkWidget *do_widget)
+{
+  GtkWidget *window, *sw, *fixed, *cube;
+
+  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  gtk_window_set_display (GTK_WINDOW (window),  gtk_widget_get_display (do_widget));
+  gtk_window_set_title (GTK_WINDOW (window), "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);
+  gtk_container_add (GTK_CONTAINER (window), sw);
+
+  fixed = gtk_fixed_new ();
+  gtk_container_add (GTK_CONTAINER (sw), fixed);
+  gtk_widget_set_halign (GTK_WIDGET (fixed), GTK_ALIGN_CENTER);
+  gtk_widget_set_valign (GTK_WIDGET (fixed), GTK_ALIGN_CENTER);
+
+  cube = create_faces ();
+  gtk_container_add (GTK_CONTAINER (fixed), cube);
+  gtk_widget_set_overflow (fixed, GTK_OVERFLOW_VISIBLE);
+
+  provider = gtk_css_provider_new ();
+  gtk_css_provider_load_from_resource (provider, "/fixed/fixed.css");
+  gtk_style_context_add_provider_for_display (gdk_display_get_default (),
+                                              GTK_STYLE_PROVIDER (provider),
+                                              800);
+  g_object_unref (provider);
+
+  return window;
+}
+
+GtkWidget*
+do_fixed (GtkWidget *do_widget)
+{
+  if (demo_window == NULL)
+    demo_window = create_demo_window (do_widget);
+
+  if (!gtk_widget_get_visible (demo_window))
+    gtk_widget_show (demo_window);
+  else
+    gtk_widget_destroy (demo_window);
+
+  return demo_window;
+}
--- a/demos/gtk-demo/fixed.css
+++ b/demos/gtk-demo/fixed.css
@@ -0,0 +1,29 @@
+frame.front {
+  border: 2px solid white;
+  background-color: rgba(228, 0, 0, 0.8);
+}
+
+frame.back {
+  border: 2px solid white;
+  background-color: rgba(228, 0, 0, 0.8);
+}
+
+frame.right {
+  border: 2px solid white;
+  background-color: rgba(127, 231, 25, 0.8);
+}
+
+frame.left {
+  border: 2px solid white;
+  background-color: rgba(127, 231, 25, 0.8);
+}
+
+frame.top {
+  border: 2px solid white;
+  background-color: rgba(114, 159, 207, 0.8);
+}
+
+frame.bottom {
+  border: 2px solid white;
+  background-color: rgba(114, 159, 207, 0.8);
+}
--- a/demos/gtk-demo/font-features.ui
+++ b/demos/gtk-demo/font-features.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <requires lib="gtk+" version="3.12"/>
  <object class="GtkWindow" id="window">
--- a/demos/gtk-demo/font_features.c
+++ b/demos/gtk-demo/font_features.c
@@ -305,7 +305,7 @@ update_display (void)
  char *font_desc;
  char *features;

-  text = gtk_entry_get_text (GTK_ENTRY (entry));
+  text = gtk_editable_get_text (GTK_EDITABLE (entry));

  if (gtk_label_get_selection_bounds (GTK_LABEL (label), &ins, &bound))
    {
@@ -495,7 +495,11 @@ update_script_combo (void)
  gboolean have_active = FALSE;

  lang = gtk_font_chooser_get_language (GTK_FONT_CHOOSER (font));
+
+  G_GNUC_BEGIN_IGNORE_DEPRECATIONS
  active = hb_ot_tag_from_language (hb_language_from_string (lang, -1));
+  G_GNUC_END_IGNORE_DEPRECATIONS
+
  g_free (lang);

  store = gtk_list_store_new (4, G_TYPE_STRING, G_TYPE_UINT, G_TYPE_UINT, G_TYPE_UINT);
@@ -728,7 +732,7 @@ adjustment_changed (GtkAdjustment *adjustment,
  char *str;

  str = g_strdup_printf ("%g", gtk_adjustment_get_value (adjustment));
-  gtk_entry_set_text (GTK_ENTRY (entry), str);
+  gtk_editable_set_text (GTK_EDITABLE (entry), str);
  g_free (str);

  update_display ();
@@ -741,7 +745,7 @@ entry_activated (GtkEntry *entry,
  gdouble value;
  gchar *err = NULL;

-  value = g_strtod (gtk_entry_get_text (entry), &err);
+  value = g_strtod (gtk_editable_get_text (GTK_EDITABLE (entry)), &err);
  if (err != NULL)
    gtk_adjustment_set_value (adjustment, value);
 }
@@ -821,7 +825,7 @@ add_axis (FT_Var_Axis *ax, FT_Fixed value, int i)
  gtk_grid_attach (GTK_GRID (variations_grid), axis_scale, 1, i, 1, 1);
  axis_entry = gtk_entry_new ();
  gtk_widget_set_valign (axis_entry, GTK_ALIGN_BASELINE);
-  gtk_entry_set_width_chars (GTK_ENTRY (axis_entry), 4);
+  gtk_editable_set_width_chars (GTK_EDITABLE (axis_entry), 4);
  gtk_grid_attach (GTK_GRID (variations_grid), axis_entry, 2, i, 1, 1);

  axis = g_new (Axis, 1);
@@ -1639,7 +1643,7 @@ static char *text;
 static void
 switch_to_entry (void)
 {
-  text = g_strdup (gtk_entry_get_text (GTK_ENTRY (entry)));
+  text = g_strdup (gtk_editable_get_text (GTK_EDITABLE (entry)));
  gtk_stack_set_visible_child_name (GTK_STACK (stack), "entry");
  gtk_widget_grab_focus (entry);
 }
@@ -1677,7 +1681,7 @@ entry_key_press (GtkEventController *controller,
 {
  if (keyval == GDK_KEY_Escape)
    {
-      gtk_entry_set_text (GTK_ENTRY (entry), text);
+      gtk_editable_set_text (GTK_EDITABLE (entry), text);
      stop_edit ();
      return GDK_EVENT_STOP;
    }
--- a/demos/gtk-demo/listbox.ui
+++ b/demos/gtk-demo/listbox.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface domain="gtk40">
  <object class="GtkMenu" id="menu1">
    <child>
@@ -28,12 +29,12 @@
            <property name="margin-start">8</property>
            <property name="margin-end">8</property>
            <property name="icon-name">image-missing</property>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">0</property>
+              <property name="row-span">5</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">0</property>
-            <property name="height">5</property>
-          </packing>
        </child>
        <child>
          <object class="GtkBox" id="box1">
@@ -74,11 +75,11 @@
                </style>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">0</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">0</property>
-          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="content_label">
@@ -91,11 +92,11 @@
            <accessibility>
              <role type="static"/>
            </accessibility>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">1</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkBox" id="resent_box">
@@ -118,11 +119,11 @@
                <property name="uri">http://www.gtk.org</property>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">2</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">2</property>
-          </packing>
        </child>
        <child>
          <object class="GtkBox" id="box3">
@@ -181,11 +182,11 @@
                </child>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">3</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">3</property>
-          </packing>
        </child>
        <child>
          <object class="GtkRevealer" id="details_revealer">
@@ -250,11 +251,11 @@ FAVORITES</property>
                </child>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">4</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">4</property>
-          </packing>
        </child>
      </object>
    </child>
--- a/demos/gtk-demo/main.c
+++ b/demos/gtk-demo/main.c
@@ -45,22 +45,43 @@ activate_about (GSimpleAction *action,
    "The GTK Team",
    NULL
  };
+  char *version;
+  GString *s;
+
+  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, "\tGTK\t%d.%d.%d\n",
+                          gtk_get_major_version (),
+                          gtk_get_minor_version (),
+                          gtk_get_micro_version ());
+  g_string_append_printf (s, "\nA link can apppear here: <http://www.gtk.org>");
+
+  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 Demo",
-                         "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 ()),
-                         "copyright", "(C) 1997-2013 The GTK Team",
+                         "version", version,
+                         "copyright", "© 1997—2019 The GTK Team",
                         "license-type", GTK_LICENSE_LGPL_2_1,
                         "website", "http://www.gtk.org",
                         "comments", "Program to demonstrate GTK widgets",
                         "authors", authors,
-                         "logo-icon-name", "org.gtk.Demo",
+                         "logo-icon-name", "org.gtk.Demo4",
                         "title", "About GTK Demo",
+                         "system-information", s->str,
                         NULL);
+
+  g_string_free (s, TRUE);
+  g_free (version);
 }

 static void
@@ -84,6 +105,14 @@ activate_quit (GSimpleAction *action,
    }
 }

+static void
+activate_inspector (GSimpleAction *action,
+                    GVariant      *parameter,
+                    gpointer       user_data)
+{
+  gtk_window_set_interactive_debugging (TRUE);
+}
+
 static void
 window_closed_cb (GtkWidget *window, gpointer data)
 {
@@ -668,7 +697,7 @@ add_data_tab (const gchar *demoname)
      gtk_widget_show (label);
      gtk_notebook_append_page (GTK_NOTEBOOK (notebook), widget, label);
      g_object_set (gtk_notebook_get_page (GTK_NOTEBOOK (notebook), widget),
-                    "tab-expand", TRUE,
+                    "tab-expand", FALSE,
                    NULL);

      g_free (resource_name);
@@ -1200,6 +1229,7 @@ main (int argc, char **argv)
  static GActionEntry app_entries[] = {
    { "about", activate_about, NULL, NULL, NULL },
    { "quit", activate_quit, NULL, NULL, NULL },
+    { "inspector", activate_inspector, NULL, NULL, NULL },
  };

  /* Most code in gtk-demo is intended to be exemplary, but not
@@ -1212,7 +1242,7 @@ main (int argc, char **argv)
    }
  /* -- End of hack -- */

-  app = gtk_application_new ("org.gtk.Demo", G_APPLICATION_NON_UNIQUE|G_APPLICATION_HANDLES_COMMAND_LINE);
+  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),
                                   app_entries, G_N_ELEMENTS (app_entries),
--- a/demos/gtk-demo/main.ui
+++ b/demos/gtk-demo/main.ui
@@ -1,4 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
+  <menu id="gear_menu">
+    <section>
+      <item>
+        <attribute name="label" translatable="yes">_Inspector</attribute>
+        <attribute name="action">app.inspector</attribute>
+      </item>
+      <item>
+        <attribute name="label" translatable="yes">_About GTK Demo</attribute>
+        <attribute name="action">app.about</attribute>
+      </item>
+    </section>
+  </menu>
  <object class="GtkTreeStore" id="treestore">
    <columns>
      <column type="gchararray"/>
@@ -34,6 +47,13 @@
            </child>
          </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>
--- a/demos/gtk-demo/menus.c
+++ b/demos/gtk-demo/menus.c
@@ -70,12 +70,6 @@ change_orientation (GtkWidget *button,
  parent = gtk_widget_get_parent (menubar);
  orientation = gtk_orientable_get_orientation (GTK_ORIENTABLE (parent));
  gtk_orientable_set_orientation (GTK_ORIENTABLE (parent), 1 - orientation);
-
-  if (orientation == GTK_ORIENTATION_VERTICAL)
-    g_object_set (menubar, "pack-direction", GTK_PACK_DIRECTION_TTB, NULL);
-  else
-    g_object_set (menubar, "pack-direction", GTK_PACK_DIRECTION_LTR, NULL);
-
 }

 static GtkWidget *window = NULL;
@@ -107,51 +101,42 @@ do_menus (GtkWidget *do_widget)

      box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
      gtk_container_add (GTK_CONTAINER (window), box);
-      gtk_widget_show (box);

      box1 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
      gtk_container_add (GTK_CONTAINER (box), box1);
-      gtk_widget_show (box1);

      menubar = gtk_menu_bar_new ();
      gtk_widget_set_hexpand (menubar, TRUE);
      gtk_container_add (GTK_CONTAINER (box1), menubar);
-      gtk_widget_show (menubar);

      menu = create_menu (2);

      menuitem = gtk_menu_item_new_with_label ("test\nline2");
      gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), menu);
      gtk_menu_shell_append (GTK_MENU_SHELL (menubar), menuitem);
-      gtk_widget_show (menuitem);

      menuitem = gtk_menu_item_new_with_label ("foo");
      gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), create_menu (3));
      gtk_menu_shell_append (GTK_MENU_SHELL (menubar), menuitem);
-      gtk_widget_show (menuitem);

      menuitem = gtk_menu_item_new_with_label ("bar");
      gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), create_menu (4));
      gtk_menu_shell_append (GTK_MENU_SHELL (menubar), menuitem);
-      gtk_widget_show (menuitem);

      box2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
      gtk_container_add (GTK_CONTAINER (box1), box2);
-      gtk_widget_show (box2);

      button = gtk_button_new_with_label ("Flip");
      g_signal_connect (button, "clicked",
                        G_CALLBACK (change_orientation), menubar);
      gtk_container_add (GTK_CONTAINER (box2), button);
-      gtk_widget_show (button);

      button = gtk_button_new_with_label ("Close");
      g_signal_connect_swapped (button, "clicked",
                                G_CALLBACK(gtk_widget_destroy), window);
      gtk_container_add (GTK_CONTAINER (box2), button);
      gtk_widget_set_can_default (button, TRUE);
-      gtk_widget_grab_default (button);
-      gtk_widget_show (button);
+      gtk_window_set_default (GTK_WINDOW (window), button);
    }

  if (!gtk_widget_get_visible (window))
--- a/demos/gtk-demo/menus.ui
+++ b/demos/gtk-demo/menus.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <menu id="appmenu">
    <section>
--- a/demos/gtk-demo/meson.build
+++ b/demos/gtk-demo/meson.build
@@ -24,6 +24,7 @@ demos = files([
  'expander.c',
  'filtermodel.c',
  'fishbowl.c',
+  'fixed.c',
  'foreigndrawing.c',
  'gestures.c',
  'glarea.c',
@@ -47,6 +48,7 @@ demos = files([
  'paintable_animated.c',
  'paintable_mediastream.c',
  'panes.c',
+  'password_entry.c',
  'pickers.c',
  'pixbufs.c',
  'popover.c',
@@ -64,6 +66,7 @@ demos = files([
  'spinner.c',
  'stack.c',
  'tabs.c',
+  'tagged_entry.c',
  'textmask.c',
  'textview.c',
  'textscroll.c',
@@ -75,7 +78,13 @@ demos = files([

 gtkdemo_deps = [ libgtk_dep, ]

-extra_demo_sources = files(['main.c', 'gtkfishbowl.c', 'fontplane.c', 'gtkgears.c', 'puzzlepiece.c', 'bluroverlay.c'])
+extra_demo_sources = files(['main.c',
+                            'gtkfishbowl.c',
+                            'fontplane.c',
+                            'gtkgears.c',
+                            'puzzlepiece.c',
+                            'bluroverlay.c',
+                            'demotaggedentry.c'])

 if harfbuzz_dep.found() and pangoft_dep.found()
  demos += files('font_features.c')
@@ -126,11 +135,11 @@ foreach size: ['scalable', 'symbolic']
 endforeach

 # desktop file
-install_data('org.gtk.Demo.desktop', install_dir: gtk_applicationsdir)
+install_data('org.gtk.Demo4.desktop', install_dir: gtk_applicationsdir)

 # GSettings
-install_data('org.gtk.Demo.gschema.xml', install_dir: gtk_schemasdir)
+install_data('org.gtk.Demo4.gschema.xml', install_dir: gtk_schemasdir)
 gnome.compile_schemas()

 # appdata
-install_data('org.gtk.Demo.appdata.xml', install_dir: gtk_appdatadir)
+install_data('org.gtk.Demo4.appdata.xml', install_dir: gtk_appdatadir)
--- a/demos/gtk-demo/modelbutton.ui
+++ b/demos/gtk-demo/modelbutton.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="GtkWindow" id="window1">
    <child type="titlebar">
--- a/demos/gtk-demo/org.gtk.Demo4.appdata.xml
+++ b/demos/gtk-demo/org.gtk.Demo4.appdata.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <component type="desktop">
-  <id>org.gtk.Demo.desktop</id>
+  <id>org.gtk.Demo4.desktop</id>
  <metadata_license>CC0-1.0</metadata_license>
  <project_license>LGPL-2.0+</project_license>
  <name>GTK Demo</name>
@@ -30,4 +30,11 @@
  <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="3.94.0" date="2018-06-25">
+      <description>
+        <p>A new developers snapshot towards GTK 4.0.</p>
+      </description>
+    </release>
+  </releases>
 </component>
--- a/demos/gtk-demo/org.gtk.Demo4.desktop
+++ b/demos/gtk-demo/org.gtk.Demo4.desktop
@@ -2,7 +2,7 @@
 Name=GTK Demo
 Comment=GTK code examples and demonstrations
 Exec=gtk4-demo
-Icon=org.gtk.Demo
+Icon=org.gtk.Demo4
 Terminal=false
 Type=Application
 StartupNotify=true
--- a/demos/gtk-demo/org.gtk.Demo4.gschema.xml
+++ b/demos/gtk-demo/org.gtk.Demo4.gschema.xml
@@ -2,14 +2,14 @@

 <schemalist>

-  <enum id='org.gtk.Demo.Color'>
+  <enum id='org.gtk.Demo4.Color'>
    <value nick='red'   value='0'/>
    <value nick='green' value='1'/>
    <value nick='blue'  value='2'/>
  </enum>

-  <schema id='org.gtk.Demo' path='/org/gtk/Demo/'>
-    <key name='color' enum='org.gtk.Demo.Color'>
+  <schema id='org.gtk.Demo4' path='/org/gtk/Demo4/'>
+    <key name='color' enum='org.gtk.Demo4.Color'>
      <default>'red'</default>
    </key>
    <key name='window-size' type='(ii)'>
--- a/demos/gtk-demo/overlay.c
+++ b/demos/gtk-demo/overlay.c
@@ -12,7 +12,7 @@
 static void
 do_number (GtkButton *button, GtkEntry *entry)
 {
-  gtk_entry_set_text (entry, gtk_button_get_label (button));
+  gtk_editable_set_text (GTK_EDITABLE (entry), gtk_button_get_label (button));
 }

 GtkWidget *
@@ -57,7 +57,7 @@ do_overlay (GtkWidget *do_widget)

      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
      gtk_overlay_add_overlay (GTK_OVERLAY (overlay), vbox);
-      gtk_widget_set_can_pick (vbox, FALSE);
+      gtk_widget_set_can_target (vbox, FALSE);
      gtk_widget_set_halign (vbox, GTK_ALIGN_CENTER);
      gtk_widget_set_valign (vbox, GTK_ALIGN_CENTER);

--- a/demos/gtk-demo/overlay2.c
+++ b/demos/gtk-demo/overlay2.c
@@ -66,13 +66,13 @@ do_overlay2 (GtkWidget *do_widget)

      image = gtk_picture_new_for_resource ("/overlay2/decor1.png");
      gtk_overlay_add_overlay (GTK_OVERLAY (overlay), image);
-      gtk_widget_set_can_pick (image, FALSE);
+      gtk_widget_set_can_target (image, FALSE);
      gtk_widget_set_halign (image, GTK_ALIGN_START);
      gtk_widget_set_valign (image, GTK_ALIGN_START);

      image = gtk_picture_new_for_resource ("/overlay2/decor2.png");
      gtk_overlay_add_overlay (GTK_OVERLAY (overlay), image);
-      gtk_widget_set_can_pick (image, FALSE);
+      gtk_widget_set_can_target (image, FALSE);
      gtk_widget_set_halign (image, GTK_ALIGN_END);
      gtk_widget_set_valign (image, GTK_ALIGN_END);

--- a/demos/gtk-demo/paint.c
+++ b/demos/gtk-demo/paint.c
@@ -171,8 +171,24 @@ on_pad_knob_change (GSimpleAction *action,
 }

 static void
-drawing_area_hierarchy_changed (GtkWidget *widget,
-                                GtkWidget *previous_toplevel)
+drawing_area_unroot (GtkWidget *widget)
+{
+  DrawingArea *area = (DrawingArea *) widget;
+  GtkWidget *toplevel;
+
+  toplevel = gtk_widget_get_toplevel (widget);
+
+  if (area->pad_controller)
+    {
+      gtk_widget_remove_controller (toplevel, GTK_EVENT_CONTROLLER (area->pad_controller));
+      area->pad_controller = NULL;
+    }
+
+  GTK_WIDGET_CLASS (drawing_area_parent_class)->unroot (widget);
+}
+
+static void
+drawing_area_root (GtkWidget *widget)
 {
  DrawingArea *area = (DrawingArea *) widget;
  GSimpleActionGroup *action_group;
@@ -180,20 +196,12 @@ drawing_area_hierarchy_changed (GtkWidget *widget,
  GtkWidget *toplevel;
  gint i;

-  if (previous_toplevel && area->pad_controller)
-    {
-      gtk_widget_remove_controller (previous_toplevel,
-                                    GTK_EVENT_CONTROLLER (area->pad_controller));
-      area->pad_controller = NULL;
-    }
+  GTK_WIDGET_CLASS (drawing_area_parent_class)->root (widget);

  toplevel = gtk_widget_get_toplevel (GTK_WIDGET (area));
-  if (!GTK_IS_WINDOW (toplevel))
-    return;

  action_group = g_simple_action_group_new ();
-  area->pad_controller = gtk_pad_controller_new (G_ACTION_GROUP (action_group),
-                                                 NULL);
+  area->pad_controller = gtk_pad_controller_new (G_ACTION_GROUP (action_group), NULL);

  for (i = 0; i < G_N_ELEMENTS (pad_actions); i++)
    {
@@ -220,8 +228,7 @@ drawing_area_hierarchy_changed (GtkWidget *widget,
  gtk_pad_controller_set_action_entries (area->pad_controller, pad_actions,
                                         G_N_ELEMENTS (pad_actions));

-  gtk_widget_add_controller (toplevel,
-                             GTK_EVENT_CONTROLLER (area->pad_controller));
+  gtk_widget_add_controller (toplevel, GTK_EVENT_CONTROLLER (area->pad_controller));
 }

 static void
@@ -233,7 +240,8 @@ drawing_area_class_init (DrawingAreaClass *klass)
  widget_class->snapshot = drawing_area_snapshot;
  widget_class->map = drawing_area_map;
  widget_class->unmap = drawing_area_unmap;
-  widget_class->hierarchy_changed = drawing_area_hierarchy_changed;
+  widget_class->root = drawing_area_root;
+  widget_class->unroot = drawing_area_unroot;

  area_signals[COLOR_SET] =
    g_signal_new ("color-set",
--- a/demos/gtk-demo/panes.c
+++ b/demos/gtk-demo/panes.c
@@ -27,10 +27,16 @@ toggle_resize (GtkWidget *widget,

  is_child1 = (child == gtk_paned_get_child1 (paned));

-  gtk_container_child_get (GTK_CONTAINER (paned), child,
-                           "resize", &resize,
-                           "shrink", &shrink,
-                           NULL);
+  if (is_child1)
+    g_object_get (paned,
+                  "resize-child1", &resize,
+                  "shrink-child1", &shrink,
+                  NULL);
+  else
+    g_object_get (paned,
+                  "resize-child2", &resize,
+                  "shrink-child2", &shrink,
+                  NULL);

  g_object_ref (child);
  gtk_container_remove (GTK_CONTAINER (parent), child);
@@ -55,10 +61,16 @@ toggle_shrink (GtkWidget *widget,

  is_child1 = (child == gtk_paned_get_child1 (paned));

-  gtk_container_child_get (GTK_CONTAINER (paned), child,
-                           "resize", &resize,
-                           "shrink", &shrink,
-                           NULL);
+  if (is_child1)
+    g_object_get (paned,
+                  "resize-child1", &resize,
+                  "shrink-child1", &shrink,
+                  NULL);
+  else
+    g_object_get (paned,
+                  "resize-child2", &resize,
+                  "shrink-child2", &shrink,
+                  NULL);

  g_object_ref (child);
  gtk_container_remove (GTK_CONTAINER (parent), child);
--- a/demos/gtk-demo/password_entry.c
+++ b/demos/gtk-demo/password_entry.c
@@ -0,0 +1,89 @@
+/* Entry/Password Entry
+ *
+ * GtkPasswordEntry provides common functionality of
+ * entries that are used to enter passwords and other
+ * secrets.
+ *
+ * It will display a warning if CapsLock is on, and it
+ * can optionally provide a way to see the text.
+ */
+
+#include <glib/gi18n.h>
+#include <gtk/gtk.h>
+
+static GtkWidget *entry;
+static GtkWidget *entry2;
+static GtkWidget *button;
+
+static void
+update_button (GObject    *object,
+               GParamSpec *pspec,
+               gpointer    data)
+{
+  const char *text = gtk_editable_get_text (GTK_EDITABLE (entry));
+  const char *text2 = gtk_editable_get_text (GTK_EDITABLE (entry2));
+
+  gtk_widget_set_sensitive (button,
+                            text[0] != '\0' && g_str_equal (text, text2));
+}
+
+GtkWidget *
+do_password_entry (GtkWidget *do_widget)
+{
+  static GtkWidget *window = NULL;
+  GtkWidget *box;
+  GtkWidget *header;
+
+  if (!window)
+    {
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      header = gtk_header_bar_new ();
+      gtk_header_bar_set_title (GTK_HEADER_BAR (header), "Choose a Password");
+      gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (header), FALSE);
+      gtk_window_set_titlebar (GTK_WINDOW (window), header);
+      gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
+      gtk_window_set_deletable (GTK_WINDOW (window), FALSE);
+      g_signal_connect (window, "destroy",
+                        G_CALLBACK (gtk_widget_destroyed), &window);
+
+      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
+      g_object_set (box, "margin", 18, NULL);
+      gtk_container_add (GTK_CONTAINER (window), box);
+
+      entry = gtk_password_entry_new ();
+      gtk_password_entry_set_show_peek_icon (GTK_PASSWORD_ENTRY (entry), TRUE);
+      g_object_set (entry,
+                    "placeholder-text", "Password",
+                    "activates-default", TRUE,
+                    NULL);
+      g_signal_connect (entry, "notify::text", G_CALLBACK (update_button), NULL);
+      gtk_container_add (GTK_CONTAINER (box), entry);
+
+      entry2 = gtk_password_entry_new ();
+      gtk_password_entry_set_show_peek_icon (GTK_PASSWORD_ENTRY (entry2), TRUE);
+      g_object_set (entry2,
+                    "placeholder-text", "Confirm",
+                    "activates-default", TRUE,
+                    NULL);
+      g_signal_connect (entry2, "notify::text", G_CALLBACK (update_button), NULL);
+      gtk_container_add (GTK_CONTAINER (box), entry2);
+
+      button = gtk_button_new_with_mnemonic ("_Done");
+      gtk_style_context_add_class (gtk_widget_get_style_context (button), "suggested-action");
+      g_signal_connect_swapped (button, "clicked", G_CALLBACK (gtk_widget_destroy), window);
+      gtk_widget_set_sensitive (button, FALSE);
+      gtk_header_bar_pack_end (GTK_HEADER_BAR (header), button);
+
+      gtk_widget_set_can_default (button, TRUE);
+      gtk_window_set_default (GTK_WINDOW (window), button);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}
--- a/demos/gtk-demo/popover.ui
+++ b/demos/gtk-demo/popover.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="GtkListStore" id="liststore1">
    <columns>
--- a/demos/gtk-demo/revealer.ui
+++ b/demos/gtk-demo/revealer.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="GtkWindow" id="window">
    <property name="default-width">300</property>
@@ -17,11 +18,11 @@
                <property name="icon-size">large</property>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">2</property>
+              <property name="top-attach">2</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">2</property>
-            <property name="top-attach">2</property>
-          </packing>
        </child>
        <child>
          <object class="GtkRevealer" id="revealer1">
@@ -33,11 +34,11 @@
                <property name="icon-size">large</property>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">2</property>
+              <property name="top-attach">1</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">2</property>
-            <property name="top-attach">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkRevealer" id="revealer2">
@@ -49,11 +50,11 @@
                <property name="icon-size">large</property>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">3</property>
+              <property name="top-attach">2</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">3</property>
-            <property name="top-attach">2</property>
-          </packing>
        </child>
        <child>
          <object class="GtkRevealer" id="revealer3">
@@ -64,11 +65,11 @@
                <property name="icon-size">large</property>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">2</property>
+              <property name="top-attach">3</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">2</property>
-            <property name="top-attach">3</property>
-          </packing>
        </child>
        <child>
          <object class="GtkRevealer" id="revealer4">
@@ -80,11 +81,11 @@
                <property name="icon-size">large</property>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">2</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">2</property>
-          </packing>
        </child>
        <child>
          <object class="GtkRevealer" id="revealer5">
@@ -96,11 +97,11 @@
                <property name="icon-size">large</property>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">2</property>
+              <property name="top-attach">0</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">2</property>
-            <property name="top-attach">0</property>
-          </packing>
        </child>
        <child>
          <object class="GtkRevealer" id="revealer6">
@@ -112,11 +113,11 @@
                <property name="icon-size">large</property>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">4</property>
+              <property name="top-attach">2</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">4</property>
-            <property name="top-attach">2</property>
-          </packing>
        </child>
        <child>
          <object class="GtkRevealer" id="revealer7">
@@ -127,11 +128,11 @@
                <property name="icon-size">large</property>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">2</property>
+              <property name="top-attach">4</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">2</property>
-            <property name="top-attach">4</property>
-          </packing>
        </child>
        <child>
          <object class="GtkRevealer" id="revealer8">
@@ -143,11 +144,11 @@
                <property name="icon-size">large</property>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">2</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">2</property>
-          </packing>
        </child>
      </object>
    </child>
--- a/demos/gtk-demo/scale.ui
+++ b/demos/gtk-demo/scale.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="GtkAdjustment" id="adjustment1">
    <property name="upper">4</property>
@@ -31,11 +32,11 @@
            <accessibility>
              <relation type="label-for" target="scale_plain"/>
            </accessibility>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">0</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">0</property>
-          </packing>
        </child>
        <child>
          <object class="GtkScale" id="scale_plain">
@@ -47,11 +48,11 @@
            <accessibility>
              <relation type="labelled-by" target="label_plain"/>
            </accessibility>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">0</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">0</property>
-          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="label_marks">
@@ -60,11 +61,11 @@
            <accessibility>
              <relation type="label-for" target="scale_marks"/>
            </accessibility>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">1</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkScale" id="scale_marks">
@@ -83,11 +84,11 @@
            <accessibility>
              <relation type="labelled-by" target="label_marks"/>
            </accessibility>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">1</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="label_discrete">
@@ -96,11 +97,11 @@
            <accessibility>
              <relation type="label-for" target="scale_discrete"/>
            </accessibility>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">2</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">2</property>
-          </packing>
        </child>
        <child>
          <object class="GtkScale" id="scale_discrete">
@@ -120,11 +121,11 @@
              <mark value="3" position="bottom"/>
              <mark value="4" position="bottom"/>
            </marks>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">2</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">2</property>
-          </packing>
        </child>
      </object>
    </child>
--- a/demos/gtk-demo/search_entry.c
+++ b/demos/gtk-demo/search_entry.c
@@ -85,7 +85,7 @@ stop_search (GtkButton *button,
 static void
 clear_entry (GtkEntry *entry)
 {
-  gtk_entry_set_text (entry, "");
+  gtk_editable_set_text (GTK_EDITABLE (entry), "");
 }

 static void
@@ -246,7 +246,10 @@ do_search_entry (GtkWidget *do_widget)
      gtk_container_add (GTK_CONTAINER (vbox), hbox);

      /* Create our entry */
-      entry = gtk_search_entry_new ();
+      entry = gtk_entry_new ();
+      gtk_entry_set_icon_from_icon_name (GTK_ENTRY (entry),
+                                         GTK_ENTRY_ICON_PRIMARY,
+                                         "edit-find-symbolic");
      gtk_container_add (GTK_CONTAINER (hbox), entry);

      /* Create the find and cancel buttons */
--- a/demos/gtk-demo/shortcuts-boxes.ui
+++ b/demos/gtk-demo/shortcuts-boxes.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="GtkShortcutsWindow" id="shortcuts-boxes">
    <property name="modal">1</property>
--- a/demos/gtk-demo/shortcuts-builder.ui
+++ b/demos/gtk-demo/shortcuts-builder.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="GtkShortcutsWindow" id="shortcuts-builder">
    <property name="modal">1</property>
--- a/demos/gtk-demo/shortcuts-clocks.ui
+++ b/demos/gtk-demo/shortcuts-clocks.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="GtkShortcutsWindow" id="shortcuts-clocks">
    <property name="modal">1</property>
--- a/demos/gtk-demo/shortcuts-gedit.ui
+++ b/demos/gtk-demo/shortcuts-gedit.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="GtkShortcutsWindow" id="shortcuts-gedit">
    <property name="modal">1</property>
--- a/demos/gtk-demo/shortcuts.ui
+++ b/demos/gtk-demo/shortcuts.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="GtkWindow" id="window1">
    <property name="title" translatable="yes">Shortcuts</property>
--- a/demos/gtk-demo/sidebar.c
+++ b/demos/gtk-demo/sidebar.c
@@ -65,7 +65,7 @@ do_sidebar (GtkWidget *do_widget)
        {
          if (i == 0)
            {
-              widget = gtk_image_new_from_icon_name ("org.gtk.Demo");
+              widget = gtk_image_new_from_icon_name ("org.gtk.Demo4");
              gtk_image_set_pixel_size (GTK_IMAGE (widget), 256);
            }
          else
--- a/demos/gtk-demo/sliding_puzzle.c
+++ b/demos/gtk-demo/sliding_puzzle.c
@@ -228,7 +228,7 @@ puzzle_button_pressed (GtkGestureMultiPress *gesture,
  int l, t, i;
  int pos;

-  child = gtk_widget_pick (grid, x, y);
+  child = gtk_widget_pick (grid, x, y, GTK_PICK_DEFAULT);

  if (!child)
    {
@@ -236,10 +236,7 @@ puzzle_button_pressed (GtkGestureMultiPress *gesture,
      return;
    }

-  gtk_container_child_get (GTK_CONTAINER (grid), child,
-                           "left-attach", &l,
-                           "top-attach", &t,
-                           NULL);
+  gtk_grid_query_child (GTK_GRID (grid), child, &l, &t, NULL, NULL);

  if (l == pos_x && t == pos_y)
    {
--- a/demos/gtk-demo/spinbutton.c
+++ b/demos/gtk-demo/spinbutton.c
@@ -19,7 +19,7 @@ hex_spin_input (GtkSpinButton *spin_button,
  gchar *err;
  gdouble res;

-  buf = gtk_spin_button_get_text (spin_button);
+  buf = gtk_editable_get_text (GTK_EDITABLE (spin_button));
  res = strtol (buf, &err, 16);
  *new_val = res;
  if (*err)
@@ -41,8 +41,8 @@ hex_spin_output (GtkSpinButton *spin_button)
    buf = g_strdup ("0x00");
  else
    buf = g_strdup_printf ("0x%.2X", (gint) val);
-  if (strcmp (buf, gtk_spin_button_get_text (spin_button)))
-    gtk_spin_button_set_text (spin_button, buf);
+  if (strcmp (buf, gtk_editable_get_text (GTK_EDITABLE (spin_button))))
+    gtk_editable_set_text (GTK_EDITABLE (spin_button), buf);
  g_free (buf);

  return TRUE;
@@ -60,7 +60,7 @@ time_spin_input (GtkSpinButton *spin_button,
  gchar *endh;
  gchar *endm;

-  text = gtk_spin_button_get_text (spin_button);
+  text = gtk_editable_get_text (GTK_EDITABLE (spin_button));
  str = g_strsplit (text, ":", 2);

  if (g_strv_length (str) == 2)
@@ -99,8 +99,8 @@ time_spin_output (GtkSpinButton *spin_button)
  hours = gtk_adjustment_get_value (adjustment) / 60.0;
  minutes = (hours - floor (hours)) * 60.0;
  buf = g_strdup_printf ("%02.0f:%02.0f", floor (hours), floor (minutes + 0.5));
-  if (strcmp (buf, gtk_spin_button_get_text (spin_button)))
-    gtk_spin_button_set_text (spin_button, buf);
+  if (strcmp (buf, gtk_editable_get_text (GTK_EDITABLE (spin_button))))
+    gtk_editable_set_text (GTK_EDITABLE (spin_button), buf);
  g_free (buf);

  return TRUE;
@@ -132,7 +132,7 @@ month_spin_input (GtkSpinButton *spin_button,
  for (i = 1; i <= 12; i++)
    {
      tmp1 = g_ascii_strup (month[i - 1], -1);
-      tmp2 = g_ascii_strup (gtk_spin_button_get_text (spin_button), -1);
+      tmp2 = g_ascii_strup (gtk_editable_get_text (GTK_EDITABLE (spin_button)), -1);
      if (strstr (tmp1, tmp2) == tmp1)
        found = TRUE;
      g_free (tmp1);
@@ -162,8 +162,8 @@ month_spin_output (GtkSpinButton *spin_button)
  for (i = 1; i <= 12; i++)
    if (fabs (value - (double)i) < 1e-5)
      {
-        if (strcmp (month[i-1], gtk_spin_button_get_text (spin_button)))
-          gtk_spin_button_set_text (spin_button, month[i-1]);
+        if (strcmp (month[i-1], gtk_editable_get_text (GTK_EDITABLE (spin_button))))
+          gtk_editable_set_text (GTK_EDITABLE (spin_button), month[i-1]);
      }

  return TRUE;
--- a/demos/gtk-demo/spinbutton.ui
+++ b/demos/gtk-demo/spinbutton.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="GtkAdjustment" id="basic_adjustment">
    <property name="lower">-10000</property>
@@ -35,11 +36,11 @@
            <property name="use-underline">1</property>
            <property name="mnemonic-widget">basic_spin</property>
            <property name="xalign">1</property>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">0</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">0</property>
-          </packing>
        </child>
        <child>
          <object class="GtkSpinButton" id="basic_spin">
@@ -49,21 +50,21 @@
            <property name="climb-rate">1</property>
            <property name="digits">2</property>
            <property name="numeric">1</property>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">0</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">0</property>
-          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="basic_label">
            <property name="width-chars">10</property>
            <property name="xalign">1</property>
+            <layout>
+              <property name="left-attach">2</property>
+              <property name="top-attach">0</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">2</property>
-            <property name="top-attach">0</property>
-          </packing>
        </child>
        <child>
          <object class="GtkLabel">
@@ -71,11 +72,11 @@
            <property name="use-underline">1</property>
            <property name="mnemonic-widget">hex_spin</property>
            <property name="xalign">1</property>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">1</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkSpinButton" id="hex_spin">
@@ -85,21 +86,21 @@
            <signal name="input" handler="hex_spin_input"/>
            <signal name="output" handler="hex_spin_output"/>
            <property name="wrap">1</property>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">1</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="hex_label">
            <property name="width-chars">10</property>
            <property name="xalign">1</property>
+            <layout>
+              <property name="left-attach">2</property>
+              <property name="top-attach">1</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">2</property>
-            <property name="top-attach">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkLabel">
@@ -107,11 +108,11 @@
            <property name="use-underline">1</property>
            <property name="mnemonic-widget">time_spin</property>
            <property name="xalign">1</property>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">2</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">2</property>
-          </packing>
        </child>
        <child>
          <object class="GtkSpinButton" id="time_spin">
@@ -121,21 +122,21 @@
            <signal name="input" handler="time_spin_input"/>
            <signal name="output" handler="time_spin_output"/>
            <property name="wrap">1</property>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">2</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">2</property>
-          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="time_label">
            <property name="width-chars">10</property>
            <property name="xalign">1</property>
+            <layout>
+              <property name="left-attach">2</property>
+              <property name="top-attach">2</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">2</property>
-            <property name="top-attach">2</property>
-          </packing>
        </child>
        <child>
          <object class="GtkLabel">
@@ -143,11 +144,11 @@
            <property name="use-underline">1</property>
            <property name="mnemonic-widget">month_spin</property>
            <property name="xalign">1</property>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">3</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">3</property>
-          </packing>
        </child>
        <child>
          <object class="GtkSpinButton" id="month_spin">
@@ -158,21 +159,21 @@
            <property name="adjustment">month_adjustment</property>
            <property name="wrap">1</property>
            <property name="update-policy">if-valid</property>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">3</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">3</property>
-          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="month_label">
            <property name="width-chars">10</property>
            <property name="xalign">1</property>
+            <layout>
+              <property name="left-attach">2</property>
+              <property name="top-attach">3</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">2</property>
-            <property name="top-attach">3</property>
-          </packing>
        </child>
      </object>
    </child>
--- a/demos/gtk-demo/stack.ui
+++ b/demos/gtk-demo/stack.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="GtkWindow" id="window1">
    <property name="title" translatable="yes">Stack</property>
@@ -7,11 +8,11 @@
          <object class="GtkStackSwitcher">
            <property name="stack">stack</property>
            <property name="halign">center</property>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">0</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">0</property>
-          </packing>
        </child>
        <child>
          <object class="GtkStack" id="stack">
@@ -25,7 +26,7 @@
                  <object class="GtkImage">
                    <property name="margin-top">20</property>
                    <property name="margin-bottom">20</property>
-                    <property name="icon-name">org.gtk.Demo</property>
+                    <property name="icon-name">org.gtk.Demo4</property>
                  </object>
                </property>
              </object>
@@ -57,11 +58,11 @@
                </property>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">1</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">1</property>
-          </packing>
        </child>
      </object>
    </child>
--- a/demos/gtk-demo/tagged_entry.c
+++ b/demos/gtk-demo/tagged_entry.c
@@ -0,0 +1,112 @@
+/* Entry/Tagged Entry
+ *
+ * This example shows how to build a complex composite
+ * entry using GtkText, outside of GTK.
+ *
+ * This tagged entry can display tags and other widgets
+ * inside the entry area.
+ */
+
+#include <glib/gi18n.h>
+#include <gtk/gtk.h>
+#include "demotaggedentry.h"
+
+static GtkWidget *spinner = NULL;
+
+static void
+closed_cb (DemoTaggedEntryTag *tag, DemoTaggedEntry *entry)
+{
+  demo_tagged_entry_remove_tag (entry, GTK_WIDGET (tag));
+}
+
+static void
+add_tag (GtkButton *button, DemoTaggedEntry *entry)
+{
+  DemoTaggedEntryTag *tag;
+
+  tag = demo_tagged_entry_tag_new ("Blue");
+  gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (tag)), "blue");
+  demo_tagged_entry_tag_set_has_close_button (tag, TRUE);
+  g_signal_connect (tag, "button-clicked", G_CALLBACK (closed_cb), entry);
+
+  if (spinner == NULL)
+    demo_tagged_entry_add_tag (entry, GTK_WIDGET (tag));
+  else
+    demo_tagged_entry_insert_tag_after (entry, GTK_WIDGET (tag), gtk_widget_get_prev_sibling (spinner));
+}
+
+static void
+toggle_spinner (GtkCheckButton *button, DemoTaggedEntry *entry)
+{
+  if (spinner)
+    {
+      demo_tagged_entry_remove_tag (entry, spinner);
+      spinner = NULL; 
+    }
+  else
+    {
+      spinner = gtk_spinner_new ();
+      gtk_spinner_start (GTK_SPINNER (spinner));
+      demo_tagged_entry_add_tag (entry, spinner);
+    }
+}
+
+GtkWidget *
+do_tagged_entry (GtkWidget *do_widget)
+{
+  static GtkWidget *window = NULL;
+  GtkWidget *box;
+  GtkWidget *box2;
+  GtkWidget *header;
+  GtkWidget *entry;
+  GtkWidget *button;
+
+  if (!window)
+    {
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      header = gtk_header_bar_new ();
+      gtk_header_bar_set_title (GTK_HEADER_BAR (header), "A tagged entry");
+      gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (header), FALSE);
+      gtk_window_set_titlebar (GTK_WINDOW (window), header);
+      gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
+      gtk_window_set_deletable (GTK_WINDOW (window), FALSE);
+      g_signal_connect (window, "destroy",
+                        G_CALLBACK (gtk_widget_destroyed), &window);
+
+      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
+      g_object_set (box, "margin", 18, NULL);
+      gtk_container_add (GTK_CONTAINER (window), box);
+
+      entry = demo_tagged_entry_new ();
+      gtk_container_add (GTK_CONTAINER (box), entry);
+
+      box2 = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+      gtk_widget_set_halign (box2, GTK_ALIGN_END);
+      gtk_container_add (GTK_CONTAINER (box), box2);
+
+      button = gtk_button_new_with_mnemonic ("Add _Tag");
+      g_signal_connect (button, "clicked", G_CALLBACK (add_tag), entry);
+      gtk_container_add (GTK_CONTAINER (box2), button);
+
+      button = gtk_check_button_new_with_mnemonic ("_Spinner");
+      g_signal_connect (button, "toggled", G_CALLBACK (toggle_spinner), entry);
+      gtk_container_add (GTK_CONTAINER (box2), button);
+      
+      button = gtk_button_new_with_mnemonic ("_Done");
+      gtk_style_context_add_class (gtk_widget_get_style_context (button), "suggested-action");
+      g_signal_connect_swapped (button, "clicked", G_CALLBACK (gtk_widget_destroy), window);
+      gtk_header_bar_pack_end (GTK_HEADER_BAR (header), button);
+
+      gtk_widget_set_can_default (button, TRUE);
+      gtk_window_set_default (GTK_WINDOW (window), button);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}
--- a/demos/gtk-demo/tagstyle.css
+++ b/demos/gtk-demo/tagstyle.css
@@ -0,0 +1,19 @@
+tag {
+  margin: 4px;
+  padding: 4px;
+  border-radius: 4px;
+  background: lightskyblue;
+}
+tag box {
+  border-spacing: 4px;
+}
+tag label,
+tag image {
+  color: white;
+}
+tag button {
+  min-height: 0;
+  min-width: 0;
+  padding: 0;
+  border: 1px solid white;
+}
--- a/demos/gtk-demo/theming.ui
+++ b/demos/gtk-demo/theming.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="GtkGrid" id="grid">
    <property name="row-spacing">10</property>
@@ -11,41 +12,36 @@
        </style>
        <child>
          <object class="GtkToggleToolButton">
+            <property name="homogeneous">1</property>
            <property name="label" translatable="yes">Normal</property>
            <property name="use-underline">1</property>
            <property name="is-important">1</property>
            <property name="icon-name">edit-find</property>
          </object>
-          <packing>
-            <property name="homogeneous">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkToggleToolButton">
+            <property name="homogeneous">1</property>
            <property name="label" translatable="yes">Active</property>
            <property name="use-underline">1</property>
            <property name="is-important">1</property>
            <property name="icon-name">edit-find</property>
            <property name="active">1</property>
          </object>
-          <packing>
-            <property name="homogeneous">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkToggleToolButton">
+            <property name="homogeneous">1</property>
            <property name="sensitive">0</property>
            <property name="label" translatable="yes">Insensitive</property>
            <property name="use-underline">1</property>
            <property name="is-important">1</property>
            <property name="icon-name">edit-find</property>
          </object>
-          <packing>
-            <property name="homogeneous">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkToggleToolButton">
+            <property name="homogeneous">1</property>
            <property name="label" translatable="yes">Raised</property>
            <property name="use-underline">1</property>
            <property name="is-important">1</property>
@@ -54,12 +50,10 @@
              <class name="raised"/>
            </style>
          </object>
-          <packing>
-            <property name="homogeneous">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkToggleToolButton">
+            <property name="homogeneous">1</property>
            <property name="label" translatable="yes">Raised Active</property>
            <property name="use-underline">1</property>
            <property name="is-important">1</property>
@@ -69,12 +63,10 @@
              <class name="raised"/>
            </style>
          </object>
-          <packing>
-            <property name="homogeneous">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkToggleToolButton">
+            <property name="homogeneous">1</property>
            <property name="sensitive">0</property>
            <property name="label" translatable="yes">Insensitive Active</property>
            <property name="use-underline">1</property>
@@ -82,9 +74,6 @@
            <property name="is-important">1</property>
            <property name="active">1</property>
          </object>
-          <packing>
-            <property name="homogeneous">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkToolItem">
@@ -149,68 +138,56 @@
        </style>
        <child>
          <object class="GtkToggleToolButton">
+            <property name="homogeneous">1</property>
            <property name="label" translatable="yes">Normal</property>
            <property name="use-underline">1</property>
            <property name="icon-name">list-add-symbolic</property>
          </object>
-          <packing>
-            <property name="homogeneous">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkToggleToolButton">
+            <property name="homogeneous">1</property>
            <property name="label" translatable="yes">Normal</property>
            <property name="use-underline">1</property>
            <property name="icon-name">list-add-symbolic</property>
          </object>
-          <packing>
-            <property name="homogeneous">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkToggleToolButton">
+            <property name="homogeneous">1</property>
            <property name="label" translatable="yes">Active</property>
            <property name="use-underline">1</property>
            <property name="icon-name">list-remove-symbolic</property>
            <property name="active">1</property>
          </object>
-          <packing>
-            <property name="homogeneous">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkToggleToolButton">
+            <property name="homogeneous">1</property>
            <property name="label" translatable="yes">Active</property>
            <property name="use-underline">1</property>
            <property name="icon-name">list-remove-symbolic</property>
            <property name="active">1</property>
          </object>
-          <packing>
-            <property name="homogeneous">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkToggleToolButton">
+            <property name="homogeneous">1</property>
            <property name="sensitive">0</property>
            <property name="label" translatable="yes">Insensitive</property>
            <property name="use-underline">1</property>
            <property name="icon-name">edit-find-symbolic</property>
          </object>
-          <packing>
-            <property name="homogeneous">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkToggleToolButton">
+            <property name="homogeneous">1</property>
            <property name="sensitive">0</property>
            <property name="label" translatable="yes">Insensitive Active</property>
            <property name="use-underline">1</property>
            <property name="icon-name">go-up-symbolic</property>
            <property name="active">1</property>
          </object>
-          <packing>
-            <property name="homogeneous">1</property>
-          </packing>
        </child>
      </object>
    </child>
--- a/demos/icon-browser/data/scalable/apps/org.gnome.IconBrowser.svg
+++ b/demos/icon-browser/data/scalable/apps/org.gnome.IconBrowser.svg
--- a/demos/icon-browser/data/symbolic/apps/org.gtk.IconBrowser4-symbolic.svg
+++ b/demos/icon-browser/data/symbolic/apps/org.gtk.IconBrowser4-symbolic.svg
@@ -10,7 +10,7 @@
   xmlns="http://www.w3.org/2000/svg"
   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   sodipodi:docname="org.gtk.IconBrowser-symbolic.svg"
+   sodipodi:docname="org.gtk.IconBrowser4-symbolic.svg"
   height="16.03125"
   id="svg7384"
   inkscape:version="0.92.4 5da689c313, 2019-01-14"
--- a/demos/icon-browser/iconbrowserapp.c
+++ b/demos/icon-browser/iconbrowserapp.c
@@ -68,6 +68,6 @@ IconBrowserApp *
 icon_browser_app_new (void)
 {
  return g_object_new (ICON_BROWSER_APP_TYPE,
-                       "application-id", "org.gtk.IconBrowser",
+                       "application-id", "org.gtk.IconBrowser4",
                       NULL);
 }
--- a/demos/icon-browser/iconbrowserwin.c
+++ b/demos/icon-browser/iconbrowserwin.c
@@ -68,7 +68,7 @@ search_text_changed (GtkEntry *entry, IconBrowserWindow *win)
 {
  const gchar *text;

-  text = gtk_entry_get_text (entry);
+  text = gtk_editable_get_text (GTK_EDITABLE (entry));

  if (text[0] == '\0')
    return;
@@ -205,6 +205,7 @@ add_context (IconBrowserWindow *win,
  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);
  g_object_set (row, "margin", 10, NULL);
@@ -285,19 +286,6 @@ populate (IconBrowserWindow *win)
  g_strfreev (groups);
 }

-static gboolean
-key_event_cb (GtkEventController *controller,
-              guint               keyval,
-              guint               keycode,
-              GdkModifierType     state,
-              gpointer            data)
-{
-  IconBrowserWindow *win = data;
-
-  return gtk_search_bar_handle_event (GTK_SEARCH_BAR (win->searchbar),
-                                      gtk_get_current_event ());
-}
-
 static void
 copy_to_clipboard (GtkButton         *button,
                   IconBrowserWindow *win)
@@ -322,7 +310,7 @@ icon_visible_func (GtkTreeModel *model,
  gboolean visible;

  search = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (win->search));
-  search_text = gtk_entry_get_text (GTK_ENTRY (win->searchentry));
+  search_text = gtk_editable_get_text (GTK_EDITABLE (win->searchentry));

  if (win->symbolic)
    column = ICON_STORE_SYMBOLIC_NAME_COLUMN;
@@ -452,7 +440,6 @@ static void
 icon_browser_window_init (IconBrowserWindow *win)
 {
  GdkContentFormats *list;
-  GtkEventController *controller;

  gtk_widget_init_template (GTK_WIDGET (win));

@@ -479,13 +466,11 @@ icon_browser_window_init (IconBrowserWindow *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);

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

--- a/demos/icon-browser/meson.build
+++ b/demos/icon-browser/meson.build
@@ -17,7 +17,7 @@ executable('gtk4-icon-browser',
           link_args: extra_demo_ldflags,
           install: true)

-install_data('org.gtk.IconBrowser.desktop', install_dir: gtk_applicationsdir)
+install_data('org.gtk.IconBrowser4.desktop', install_dir: gtk_applicationsdir)

 # icons
 icontheme_dir = join_paths(gtk_datadir, 'icons/hicolor')
--- a/demos/icon-browser/org.gtk.IconBrowser4.desktop
+++ b/demos/icon-browser/org.gtk.IconBrowser4.desktop
@@ -2,7 +2,7 @@
 Name=Icon Browser
 Comment=An application that shows themed icons
 Exec=gtk4-icon-browser
-Icon=org.gtk.IconBrowser
+Icon=org.gtk.IconBrowser4
 Terminal=false
 Type=Application
 StartupNotify=true
--- a/demos/icon-browser/window.ui
+++ b/demos/icon-browser/window.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <object class="IconStore" id="store"/>
  <object class="GtkTreeModelFilter" id="filter_model">
@@ -35,7 +36,7 @@
            </child>
          </object>
        </child>
-        <child>
+        <child type="end">
          <object class="GtkToggleButton" id="search">
            <style>
              <class name="image-button"/>
@@ -46,9 +47,6 @@
              </object>
            </child>
          </object>
-          <packing>
-            <property name="pack-type">end</property>
-          </packing>
        </child>
      </object>
    </child>
@@ -123,6 +121,7 @@
    <property name="hide-on-close">1</property>
    <child internal-child="content_area">
      <object class="GtkBox">
+        <property name="orientation">vertical</property>
        <child>
          <object class="GtkGrid">
            <property name="margin">10</property>
@@ -136,11 +135,11 @@
                <accessibility>
                  <relation type="labelled-by" target="label1"/>
                </accessibility>
+                <layout>
+                  <property name="left-attach">0</property>
+                  <property name="top-attach">1</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">0</property>
-                <property name="top-attach">1</property>
-              </packing>
            </child>
            <child>
              <object class="GtkImage" id="image2">
@@ -149,11 +148,11 @@
                <accessibility>
                  <relation type="labelled-by" target="label2"/>
                </accessibility>
+                <layout>
+                  <property name="left-attach">1</property>
+                  <property name="top-attach">1</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">1</property>
-                <property name="top-attach">1</property>
-              </packing>
            </child>
            <child>
              <object class="GtkImage" id="image3">
@@ -162,11 +161,11 @@
                <accessibility>
                  <relation type="labelled-by" target="label3"/>
                </accessibility>
+                <layout>
+                  <property name="left-attach">2</property>
+                  <property name="top-attach">1</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">2</property>
-                <property name="top-attach">1</property>
-              </packing>
            </child>
            <child>
              <object class="GtkImage" id="image4">
@@ -175,11 +174,11 @@
                <accessibility>
                  <relation type="labelled-by" target="label4"/>
                </accessibility>
+                <layout>
+                  <property name="left-attach">3</property>
+                  <property name="top-attach">1</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">3</property>
-                <property name="top-attach">1</property>
-              </packing>
            </child>
            <child>
              <object class="GtkImage" id="image5">
@@ -188,11 +187,11 @@
                <accessibility>
                  <relation type="labelled-by" target="label5"/>
                </accessibility>
+                <layout>
+                  <property name="left-attach">4</property>
+                  <property name="top-attach">1</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">4</property>
-                <property name="top-attach">1</property>
-              </packing>
            </child>
            <child>
              <object class="GtkImage" id="image6">
@@ -201,11 +200,11 @@
                <accessibility>
                  <relation type="labelled-by" target="label6"/>
                </accessibility>
+                <layout>
+                  <property name="left-attach">5</property>
+                  <property name="top-attach">1</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">5</property>
-                <property name="top-attach">1</property>
-              </packing>
            </child>
            <child>
              <object class="GtkLabel" id="label1">
@@ -218,11 +217,11 @@
                <accessibility>
                  <relation type="label-for" target="image1"/>
                </accessibility>
+                <layout>
+                  <property name="left-attach">0</property>
+                  <property name="top-attach">2</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">0</property>
-                <property name="top-attach">2</property>
-              </packing>
            </child>
            <child>
              <object class="GtkLabel" id="label2">
@@ -235,11 +234,11 @@
                <accessibility>
                  <relation type="label-for" target="image2"/>
                </accessibility>
+                <layout>
+                  <property name="left-attach">1</property>
+                  <property name="top-attach">2</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">1</property>
-                <property name="top-attach">2</property>
-              </packing>
            </child>
            <child>
              <object class="GtkLabel" id="label3">
@@ -252,11 +251,11 @@
                <accessibility>
                  <relation type="label-for" target="image3"/>
                </accessibility>
+                <layout>
+                  <property name="left-attach">2</property>
+                  <property name="top-attach">2</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">2</property>
-                <property name="top-attach">2</property>
-              </packing>
            </child>
            <child>
              <object class="GtkLabel" id="label4">
@@ -269,11 +268,11 @@
                <accessibility>
                  <relation type="label-for" target="image4"/>
                </accessibility>
+                <layout>
+                  <property name="left-attach">3</property>
+                  <property name="top-attach">2</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">3</property>
-                <property name="top-attach">2</property>
-              </packing>
            </child>
            <child>
              <object class="GtkLabel" id="label5">
@@ -286,11 +285,11 @@
                <accessibility>
                  <relation type="label-for" target="image5"/>
                </accessibility>
+                <layout>
+                  <property name="left-attach">4</property>
+                  <property name="top-attach">2</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">4</property>
-                <property name="top-attach">2</property>
-              </packing>
            </child>
            <child>
              <object class="GtkLabel" id="label6">
@@ -303,11 +302,11 @@
                <accessibility>
                  <relation type="label-for" target="image6"/>
                </accessibility>
+                <layout>
+                  <property name="left-attach">5</property>
+                  <property name="top-attach">2</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">5</property>
-                <property name="top-attach">2</property>
-              </packing>
            </child>
          </object>
        </child>
--- a/demos/widget-factory/data/scalable/apps/org.gtk.WidgetFactory4.svg
+++ b/demos/widget-factory/data/scalable/apps/org.gtk.WidgetFactory4.svg
--- a/demos/widget-factory/data/symbolic/apps/org.gtk.WidgetFactory4-symbolic.svg
+++ b/demos/widget-factory/data/symbolic/apps/org.gtk.WidgetFactory4-symbolic.svg
--- a/demos/widget-factory/meson.build
+++ b/demos/widget-factory/meson.build
@@ -13,7 +13,7 @@ executable('gtk4-widget-factory',
           install: true)

 # desktop file
-install_data('org.gtk.WidgetFactory.desktop', install_dir: gtk_applicationsdir)
+install_data('org.gtk.WidgetFactory4.desktop', install_dir: gtk_applicationsdir)

 # icons
 icontheme_dir = join_paths(gtk_datadir, 'icons/hicolor')
@@ -25,4 +25,4 @@ foreach size: ['scalable', 'symbolic']
 endforeach

 # appdata
-install_data('org.gtk.WidgetFactory.appdata.xml', install_dir: gtk_appdatadir)
+install_data('org.gtk.WidgetFactory4.appdata.xml', install_dir: gtk_appdatadir)
--- a/demos/widget-factory/org.gtk.WidgetFactory4.appdata.xml
+++ b/demos/widget-factory/org.gtk.WidgetFactory4.appdata.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <component type="desktop">
-  <id>org.gtk.WidgetFactory.desktop</id>
+  <id>org.gtk.WidgetFactory4.desktop</id>
  <metadata_license>CC0-1.0</metadata_license>
  <project_license>LGPL-2.0+</project_license>
  <name>GTK Widget Factory</name>
@@ -31,4 +31,11 @@
  <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="3.94.0" date="2018-06-25">
+      <description>
+        <p>A new developers snapshot towards GTK 4.0.</p>
+      </description>
+    </release>
+  </releases>
 </component>
--- a/demos/widget-factory/org.gtk.WidgetFactory4.desktop
+++ b/demos/widget-factory/org.gtk.WidgetFactory4.desktop
@@ -2,7 +2,7 @@
 Name=Widget Factory
 Comment=A showcase for GTK widgets, designed for testing themes.
 Exec=gtk4-widget-factory
-Icon=org.gtk.WidgetFactory
+Icon=org.gtk.WidgetFactory4
 Terminal=false
 Type=Application
 StartupNotify=true
--- a/demos/widget-factory/widget-factory.c
+++ b/demos/widget-factory/widget-factory.c
@@ -48,7 +48,7 @@ change_transition_state (GSimpleAction *action,
  GtkStackTransitionType transition;

  if (g_variant_get_boolean (state))
-    transition = GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT_RIGHT;
+    transition = GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT_RIGHT;
  else
    transition = GTK_STACK_TRANSITION_TYPE_NONE;

@@ -227,12 +227,12 @@ activate_about (GSimpleAction *action,
  gtk_show_about_dialog (GTK_WINDOW (gtk_application_get_active_window (app)),
                         "program-name", "GTK Widget Factory",
                         "version", version,
-                         "copyright", "(C) 1997-2013 The GTK Team",
+                         "copyright", "© 1997—2019 The GTK Team",
                         "license-type", GTK_LICENSE_LGPL_2_1,
                         "website", "http://www.gtk.org",
                         "comments", "Program to demonstrate GTK themes and widgets",
                         "authors", authors,
-                         "logo-icon-name", "org.gtk.WidgetFactory",
+                         "logo-icon-name", "org.gtk.WidgetFactory4",
                         "title", "About GTK Widget Factory",
                         "system-information", s->str,
                         NULL);
@@ -262,6 +262,14 @@ activate_quit (GSimpleAction *action,
    }
 }

+static void
+activate_inspector (GSimpleAction *action,
+                    GVariant      *parameter,
+                    gpointer       user_data)
+{
+  gtk_window_set_interactive_debugging (TRUE);
+}
+
 static void
 spin_value_changed (GtkAdjustment *adjustment, GtkWidget *label)
 {
@@ -1406,7 +1414,7 @@ open_popover_text_changed (GtkEntry *entry, GParamSpec *pspec, GtkWidget *button
 {
  const gchar *text;

-  text = gtk_entry_get_text (entry);
+  text = gtk_editable_get_text (GTK_EDITABLE (entry));
  gtk_widget_set_sensitive (button, strlen (text) > 0);
 }

@@ -1657,13 +1665,13 @@ activate (GApplication *app)
  g_type_ensure (my_text_view_get_type ());

  provider = gtk_css_provider_new ();
-  gtk_css_provider_load_from_resource (provider, "/org/gtk/WidgetFactory/widget-factory.css");
+  gtk_css_provider_load_from_resource (provider, "/org/gtk/WidgetFactory4/widget-factory.css");
  gtk_style_context_add_provider_for_display (gdk_display_get_default (),
                                              GTK_STYLE_PROVIDER (provider),
                                              GTK_STYLE_PROVIDER_PRIORITY_USER);
  g_object_unref (provider);

-  builder = gtk_builder_new_from_resource ("/org/gtk/WidgetFactory/widget-factory.ui");
+  builder = gtk_builder_new_from_resource ("/org/gtk/WidgetFactory4/widget-factory.ui");
  gtk_builder_add_callback_symbol (builder, "on_entry_icon_release", (GCallback)on_entry_icon_release);
  gtk_builder_add_callback_symbol (builder, "on_scale_button_value_changed", (GCallback)on_scale_button_value_changed);
  gtk_builder_add_callback_symbol (builder, "on_scale_button_query_tooltip", (GCallback)on_scale_button_query_tooltip);
@@ -1935,6 +1943,7 @@ main (int argc, char *argv[])
  static GActionEntry app_entries[] = {
    { "about", activate_about, NULL, NULL, NULL },
    { "quit", activate_quit, NULL, NULL, NULL },
+    { "inspector", activate_inspector, NULL, NULL, NULL },
    { "main", NULL, "s", "'steak'", NULL },
    { "wine", NULL, NULL, "false", NULL },
    { "beer", NULL, NULL, "false", NULL },
@@ -1944,7 +1953,7 @@ main (int argc, char *argv[])
  };
  gint status;

-  app = gtk_application_new ("org.gtk.WidgetFactory", G_APPLICATION_NON_UNIQUE);
+  app = gtk_application_new ("org.gtk.WidgetFactory4", G_APPLICATION_NON_UNIQUE);

  g_action_map_add_action_entries (G_ACTION_MAP (app),
                                   app_entries, G_N_ELEMENTS (app_entries),
--- a/demos/widget-factory/widget-factory.gresource.xml
+++ b/demos/widget-factory/widget-factory.gresource.xml
@@ -1,15 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <gresources>
-  <gresource prefix="/org/gtk/WidgetFactory">
+  <gresource prefix="/org/gtk/WidgetFactory4">
    <file preprocess="xml-stripblanks">widget-factory.ui</file>
  </gresource>
-  <gresource prefix="/org/gtk/WidgetFactory">
+  <gresource prefix="/org/gtk/WidgetFactory4">
    <file>widget-factory.css</file>
  </gresource>
-  <gresource prefix="/org/gtk/WidgetFactory/gtk">
+  <gresource prefix="/org/gtk/WidgetFactory4/gtk">
    <file preprocess="xml-stripblanks">help-overlay.ui</file>
  </gresource>
-  <gresource prefix="/org/gtk/WidgetFactory">
+  <gresource prefix="/org/gtk/WidgetFactory4">
    <file>icons/16x16/actions/document-new.png</file>
    <file>icons/16x16/actions/document-save.png</file>
    <file>icons/16x16/actions/edit-find.png</file>
--- a/demos/widget-factory/widget-factory.ui
+++ b/demos/widget-factory/widget-factory.ui
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <interface>
  <menu id="gear_menu">
    <section>
@@ -15,6 +16,10 @@
      </item>
    </section>
    <section>
+      <item>
+        <attribute name="label" translatable="yes">_Inspector</attribute>
+        <attribute name="action">app.inspector</attribute>
+      </item>
      <item>
        <attribute name="label" translatable="yes">_Keyboard Shortcuts</attribute>
        <attribute name="action">win.show-help-overlay</attribute>
@@ -411,15 +416,12 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
            <property name="stack">toplevel_stack</property>
          </object>
        </child>
-        <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>
-          <packing>
-            <property name="pack-type">end</property>
-          </packing>
        </child>
      </object>
    </child>
@@ -429,7 +431,7 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
        <property name="margin">10</property>
        <child>
          <object class="GtkStack" id="toplevel_stack">
-            <property name="transition-duration">30000</property>
+            <property name="transition-duration">1000</property>
            <child>
              <object class="GtkStackPage">
                <property name="name">page1</property>
@@ -596,32 +598,32 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                                    <property name="label" translatable="yes">checkbutton</property>
                                    <property name="can-focus">1</property>
                                    <property name="active">1</property>
+                                    <layout>
+                                      <property name="left-attach">0</property>
+                                      <property name="top-attach">0</property>
+                                    </layout>
                                  </object>
-                                  <packing>
-                                    <property name="left-attach">0</property>
-                                    <property name="top-attach">0</property>
-                                  </packing>
                                </child>
                                <child>
                                  <object class="GtkCheckButton" id="checkbutton2">
                                    <property name="label" translatable="yes">checkbutton</property>
                                    <property name="can-focus">1</property>
+                                    <layout>
+                                      <property name="left-attach">0</property>
+                                      <property name="top-attach">1</property>
+                                    </layout>
                                  </object>
-                                  <packing>
-                                    <property name="left-attach">0</property>
-                                    <property name="top-attach">1</property>
-                                  </packing>
                                </child>
                                <child>
                                  <object class="GtkCheckButton" id="checkbutton3">
                                    <property name="label" translatable="yes">checkbutton</property>
                                    <property name="inconsistent">1</property>
                                    <property name="can-focus">1</property>
+                                    <layout>
+                                      <property name="left-attach">0</property>
+                                      <property name="top-attach">2</property>
+                                    </layout>
                                  </object>
-                                  <packing>
-                                    <property name="left-attach">0</property>
-                                    <property name="top-attach">2</property>
-                                  </packing>
                                </child>
                                <child>
                                  <object class="GtkCheckButton" id="checkbutton4">
@@ -629,22 +631,22 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                                    <property name="sensitive">0</property>
                                    <property name="can-focus">1</property>
                                    <property name="active">1</property>
+                                    <layout>
+                                      <property name="left-attach">0</property>
+                                      <property name="top-attach">3</property>
+                                    </layout>
                                  </object>
-                                  <packing>
-                                    <property name="left-attach">0</property>
-                                    <property name="top-attach">3</property>
-                                  </packing>
                                </child>
                                <child>
                                  <object class="GtkCheckButton" id="checkbutton5">
                                    <property name="label" translatable="yes">checkbutton</property>
                                    <property name="sensitive">0</property>
                                    <property name="can-focus">1</property>
+                                    <layout>
+                                      <property name="left-attach">0</property>
+                                      <property name="top-attach">4</property>
+                                    </layout>
                                  </object>
-                                  <packing>
-                                    <property name="left-attach">0</property>
-                                    <property name="top-attach">4</property>
-                                  </packing>
                                </child>
                                <child>
                                  <object class="GtkCheckButton" id="checkbutton6">
@@ -652,22 +654,22 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                                    <property name="sensitive">0</property>
                                    <property name="inconsistent">1</property>
                                    <property name="can-focus">1</property>
+                                    <layout>
+                                      <property name="left-attach">0</property>
+                                      <property name="top-attach">5</property>
+                                    </layout>
                                  </object>
-                                  <packing>
-                                    <property name="left-attach">0</property>
-                                    <property name="top-attach">5</property>
-                                  </packing>
                                </child>
                                <child>
                                  <object class="GtkRadioButton" id="radiobutton1">
                                    <property name="label" translatable="yes">radiobutton</property>
                                    <property name="can-focus">1</property>
                                    <property name="active">1</property>
+                                    <layout>
+                                      <property name="left-attach">1</property>
+                                      <property name="top-attach">0</property>
+                                    </layout>
                                  </object>
-                                  <packing>
-                                    <property name="left-attach">1</property>
-                                    <property name="top-attach">0</property>
-                                  </packing>
                                </child>
                                <child>
                                  <object class="GtkRadioButton" id="radiobutton2">
@@ -675,11 +677,11 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                                    <property name="can-focus">1</property>
                                    <property name="active">1</property>
                                    <property name="group">radiobutton1</property>
+                                    <layout>
+                                      <property name="left-attach">1</property>
+                                      <property name="top-attach">1</property>
+                                    </layout>
                                  </object>
-                                  <packing>
-                                    <property name="left-attach">1</property>
-                                    <property name="top-attach">1</property>
-                                  </packing>
                                </child>
                                <child>
                                  <object class="GtkRadioButton" id="radiobutton3">
@@ -688,11 +690,11 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                                    <property name="can-focus">1</property>
                                    <property name="active">1</property>
                                    <property name="group">radiobutton1</property>
+                                    <layout>
+                                      <property name="left-attach">1</property>
+                                      <property name="top-attach">2</property>
+                                    </layout>
                                  </object>
-                                  <packing>
-                                    <property name="left-attach">1</property>
-                                    <property name="top-attach">2</property>
-                                  </packing>
                                </child>
                                <child>
                                  <object class="GtkRadioButton" id="radiobutton4">
@@ -700,11 +702,11 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                                    <property name="sensitive">0</property>
                                    <property name="can-focus">1</property>
                                    <property name="active">1</property>
+                                    <layout>
+                                      <property name="left-attach">1</property>
+                                      <property name="top-attach">3</property>
+                                    </layout>
                                  </object>
-                                  <packing>
-                                    <property name="left-attach">1</property>
-                                    <property name="top-attach">3</property>
-                                  </packing>
                                </child>
                                <child>
                                  <object class="GtkRadioButton" id="radiobutton5">
@@ -713,11 +715,11 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                                    <property name="can-focus">1</property>
                                    <property name="active">1</property>
                                    <property name="group">radiobutton3</property>
+                                    <layout>
+                                      <property name="left-attach">1</property>
+                                      <property name="top-attach">4</property>
+                                    </layout>
                                  </object>
-                                  <packing>
-                                    <property name="left-attach">1</property>
-                                    <property name="top-attach">4</property>
-                                  </packing>
                                </child>
                                <child>
                                  <object class="GtkRadioButton" id="radiobutton6">
@@ -727,46 +729,47 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                                    <property name="can-focus">1</property>
                                    <property name="active">1</property>
                                    <property name="group">radiobutton3</property>
+                                    <layout>
+                                      <property name="left-attach">1</property>
+                                      <property name="top-attach">5</property>
+                                    </layout>
                                  </object>
-                                  <packing>
-                                    <property name="left-attach">1</property>
-                                    <property name="top-attach">5</property>
-                                  </packing>
                                </child>
                                <child>
                                  <object class="GtkSpinner" id="spinner1">
                                    <property name="active">1</property>
+                                    <layout>
+                                      <property name="left-attach">2</property>
+                                      <property name="top-attach">0</property>
+                                    </layout>
                                  </object>
-                                  <packing>
-                                    <property name="left-attach">2</property>
-                                    <property name="top-attach">0</property>
-                                  </packing>
                                </child>
                                <child>
-                                  <object class="GtkSpinner" id="spinner2"/>
-                                  <packing>
-                                    <property name="left-attach">2</property>
-                                    <property name="top-attach">1</property>
-                                  </packing>
+                                  <object class="GtkSpinner" id="spinner2">
+                                    <layout>
+                                      <property name="left-attach">2</property>
+                                      <property name="top-attach">1</property>
+                                    </layout>
+                                  </object>
                                </child>
                                <child>
                                  <object class="GtkSpinner" id="spinner3">
                                    <property name="active">1</property>
                                    <property name="sensitive">0</property>
+                                    <layout>
+                                      <property name="left-attach">2</property>
+                                      <property name="top-attach">3</property>
+                                    </layout>
                                  </object>
-                                  <packing>
-                                    <property name="left-attach">2</property>
-                                    <property name="top-attach">3</property>
-                                  </packing>
                                </child>
                                <child>
                                  <object class="GtkSpinner" id="spinner4">
                                    <property name="sensitive">0</property>
+                                    <layout>
+                                      <property name="left-attach">2</property>
+                                      <property name="top-attach">4</property>
+                                    </layout>
                                  </object>
-                                  <packing>
-                                    <property name="left-attach">2</property>
-                                    <property name="top-attach">4</property>
-                                  </packing>
                                </child>
                              </object>
                            </child>
@@ -1432,6 +1435,7 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                  <object class="GtkOverlay" id="page2">
                    <child type="overlay">
                      <object class="GtkRevealer" id="page2revealer">
+                        <property name="transition-type">swing-down</property>
                        <property name="halign">center</property>
                        <property name="valign">start</property>
                        <child>
@@ -1504,11 +1508,11 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                                        <property name="valign">center</property>
                                        <property name="value">.5</property>
                                        <property name="halign">center</property>
+                                        <layout>
+                                          <property name="left-attach">0</property>
+                                          <property name="top-attach">0</property>
+                                        </layout>
                                      </object>
-                                      <packing>
-                                        <property name="left-attach">0</property>
-                                        <property name="top-attach">0</property>
-                                      </packing>
                                    </child>
                                    <child>
                                      <object class="GtkScaleButton" id="mic-button">
@@ -1522,11 +1526,11 @@ microphone-sensitivity-medium-symbolic</property>
                                        <property name="halign">center</property>
                                        <signal name="query-tooltip" handler="on_scale_button_query_tooltip" swapped="no"/>
                                        <signal name="value-changed" handler="on_scale_button_value_changed" swapped="no"/>
+                                        <layout>
+                                          <property name="left-attach">0</property>
+                                          <property name="top-attach">1</property>
+                                        </layout>
                                      </object>
-                                      <packing>
-                                        <property name="left-attach">0</property>
-                                        <property name="top-attach">1</property>
-                                      </packing>
                                    </child>
                                  </object>
                                </child>
@@ -1571,7 +1575,7 @@ microphone-sensitivity-medium-symbolic</property>
                                            <property name="title">Logo</property>
                                            <property name="child">
                                              <object class="GtkImage" id="imageo">
-                                                <property name="icon-name">gtk3-widget-factory</property>
+                                                <property name="icon-name">org.gtk.WidgetFactory4</property>
                                                <property name="pixel-size">256</property>
                                              </object>
                                            </property>
@@ -1587,16 +1591,13 @@ microphone-sensitivity-medium-symbolic</property>
                                            <property name="halign">center</property>
                                          </object>
                                        </child>
-                                        <child>
+                                        <child type="end">
                                          <object class="GtkMenuButton">
                                            <property name="menu-model">dinner_menu</property>
                                            <property name="halign">center</property>
                                            <property name="valign">center</property>
                                            <property name="icon-name">emblem-system-symbolic</property>
                                          </object>
-                                          <packing>
-                                            <property name="pack-type">end</property>
-                                          </packing>
                                        </child>
                                      </object>
                                    </child>
@@ -2847,6 +2848,7 @@ microphone-sensitivity-medium-symbolic</property>
                                </child>
                                <child>
                                  <object class="GtkToolItem">
+                                    <property name="expand-item">1</property>
                                    <child>
                                      <object class="GtkScale">
                                        <property name="draw-value">0</property>
@@ -2854,9 +2856,6 @@ microphone-sensitivity-medium-symbolic</property>
                                      </object>
                                    </child>
                                  </object>
-                                  <packing>
-                                    <property name="expand">1</property>
-                                  </packing>
                                </child>
                                <child>
                                  <object class="GtkToolItem">
@@ -2881,6 +2880,17 @@ microphone-sensitivity-medium-symbolic</property>
                                    <child>
                                      <object class="GtkNotebook">
                                        <property name="show-border">0</property>
+                                        <child type="action-end">
+                                          <object class="GtkMenuButton">
+                                            <property name="valign">center</property>
+                                            <property name="popover">notebook_info_popover2</property>
+                                            <property name="icon-name">emblem-important-symbolic</property>
+                                            <property name="relief">none</property>
+                                            <style>
+                                              <class name="circular"/>
+                                            </style>
+                                          </object>
+                                        </child>
                                        <child>
                                          <object class="GtkNotebookPage">
                                            <property name="tab-expand">1</property>
@@ -3144,6 +3154,7 @@ bad things might happen.</property>
    <property name="use-header-bar">1</property>
    <property name="title" translatable="yes">Zelda</property>
    <property name="hide-on-close">1</property>
+    <property name="default-widget">act_action_dialog</property>
    <child internal-child="content_area">
      <object class="GtkBox">
        <child>
@@ -3166,7 +3177,6 @@ bad things might happen.</property>
    <child type="action">
      <object class="GtkButton" id="act_action_dialog">
        <property name="can-default">1</property>
-        <property name="has-default">1</property>
        <property name="label" translatable="yes">_Act</property>
        <property name="use-underline">1</property>
      </object>
@@ -3200,20 +3210,20 @@ bad things might happen.</property>
                <style>
                  <class name="dim-label"/>
                </style>
+                <layout>
+                  <property name="left-attach">0</property>
+                  <property name="top-attach">0</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">0</property>
-                <property name="top-attach">0</property>
-              </packing>
            </child>
            <child>
              <object class="GtkEntry" id="details_entry">
                <property name="valign">baseline</property>
+                <layout>
+                  <property name="left-attach">1</property>
+                  <property name="top-attach">0</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">1</property>
-                <property name="top-attach">0</property>
-              </packing>
            </child>
            <child>
              <object class="GtkLabel">
@@ -3225,20 +3235,20 @@ bad things might happen.</property>
                <style>
                  <class name="dim-label"/>
                </style>
+                <layout>
+                  <property name="left-attach">0</property>
+                  <property name="top-attach">1</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">0</property>
-                <property name="top-attach">1</property>
-              </packing>
            </child>
            <child>
              <object class="GtkEntry" id="more_details_entry">
                <property name="valign">baseline</property>
+                <layout>
+                  <property name="left-attach">1</property>
+                  <property name="top-attach">1</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">1</property>
-                <property name="top-attach">1</property>
-              </packing>
            </child>
            <child>
              <object class="GtkLabel">
@@ -3250,22 +3260,22 @@ bad things might happen.</property>
                <style>
                  <class name="dim-label"/>
                </style>
+                <layout>
+                  <property name="left-attach">0</property>
+                  <property name="top-attach">2</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">0</property>
-                <property name="top-attach">2</property>
-              </packing>
            </child>
            <child>
              <object class="GtkScale" id="level_scale">
                <property name="valign">baseline</property>
                <property name="draw-value">0</property>
                <property name="adjustment">adjustment1</property>
+                <layout>
+                  <property name="left-attach">1</property>
+                  <property name="top-attach">2</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">1</property>
-                <property name="top-attach">2</property>
-              </packing>
            </child>
            <child>
              <object class="GtkLabel">
@@ -3277,21 +3287,21 @@ bad things might happen.</property>
                <style>
                  <class name="dim-label"/>
                </style>
+                <layout>
+                  <property name="left-attach">0</property>
+                  <property name="top-attach">3</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">0</property>
-                <property name="top-attach">3</property>
-              </packing>
            </child>
            <child>
              <object class="GtkSwitch" id="mode_switch">
                <property name="halign">start</property>
                <property name="valign">baseline</property>
+                <layout>
+                  <property name="left-attach">1</property>
+                  <property name="top-attach">3</property>
+                </layout>
              </object>
-              <packing>
-                <property name="left-attach">1</property>
-                <property name="top-attach">3</property>
-              </packing>
            </child>
          </object>
        </child>
@@ -3304,6 +3314,7 @@ bad things might happen.</property>
    <property name="use-header-bar">1</property>
    <property name="title" translatable="yes">Choose one</property>
    <property name="hide-on-close">1</property>
+    <property name="default-widget">select_selection_dialog</property>
    <child internal-child="content_area">
      <object class="GtkBox">
        <child>
@@ -3326,7 +3337,6 @@ bad things might happen.</property>
    <child type="action">
      <object class="GtkButton" id="select_selection_dialog">
        <property name="can-default">1</property>
-        <property name="has-default">1</property>
        <property name="label" translatable="yes">_Select</property>
        <property name="use-underline">1</property>
      </object>
@@ -3349,11 +3359,11 @@ bad things might happen.</property>
            <accessibility>
              <relation type="label-for" target="open_popover_entry"/>
            </accessibility>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">0</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">0</property>
-          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="description_label">
@@ -3363,11 +3373,11 @@ bad things might happen.</property>
            <accessibility>
              <relation type="label-for" target="open_popover_textview"/>
            </accessibility>
+            <layout>
+              <property name="left-attach">0</property>
+              <property name="top-attach">1</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">0</property>
-            <property name="top-attach">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkScrolledWindow">
@@ -3384,11 +3394,12 @@ bad things might happen.</property>
                </accessibility>
              </object>
            </child>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">1</property>
+              <property name="column-span">2</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">1</property>
-          </packing>
        </child>
        <child>
          <object class="GtkEntry" id="open_popover_entry">
@@ -3396,15 +3407,46 @@ bad things might happen.</property>
            <accessibility>
              <relation type="labelled-by" target="title_label"/>
            </accessibility>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">0</property>
+              <property name="column-span">2</property>
+            </layout>
+          </object>
+        </child>
+        <child>
+          <object class="GtkExpander">
+            <child type="label">
+              <object class="GtkLabel">
+                <property name="label">Extra Info</property>
+              </object>
+            </child>
+            <child>
+              <object class="GtkEntry">
+                <property name="placeholder-text">Tell me anything…</property>
+              </object>
+            </child>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">2</property>
+              <property name="column-span">2</property>
+            </layout>
+          </object>
+        </child>
+        <child>
+          <object class="GtkMenuButton">
+            <property name="halign">end</property>
+            <property name="icon-name">emblem-system-symbolic</property>
+            <property name="menu-model">gear_menu</property>
+            <layout>
+              <property name="left-attach">1</property>
+              <property name="top-attach">3</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">0</property>
-          </packing>
        </child>
        <child>
          <object class="GtkButton" id="open_popover_button">
-            <property name="halign">end</property>
+            <property name="halign">fill</property>
            <property name="label">_Open</property>
            <property name="use-underline">1</property>
            <property name="sensitive">0</property>
@@ -3412,11 +3454,11 @@ bad things might happen.</property>
            <style>
              <class name="suggested-action"/>
            </style>
+            <layout>
+              <property name="left-attach">2</property>
+              <property name="top-attach">3</property>
+            </layout>
          </object>
-          <packing>
-            <property name="left-attach">1</property>
-            <property name="top-attach">2</property>
-          </packing>
        </child>
      </object>
    </child>
@@ -3440,8 +3482,9 @@ bad things might happen.</property>
    </widgets>
  </object>
  <object class="GtkPopover" id="notebook_info_popover">
+    <property name="modal">0</property>
    <child>
-      <object class="GtkLabel" id="notebook_info_label">
+      <object class="GtkLabel">
        <property name="label">No updates at this time</property>
        <accessibility>
          <role type="static"/>
@@ -3449,4 +3492,39 @@ bad things might happen.</property>
      </object>
    </child>
  </object>
+  <object class="GtkPopover" id="notebook_info_popover3">
+    <property name="modal">0</property>
+    <child>
+      <object class="GtkLabel">
+        <property name="label">You're in too deep!</property>
+        <accessibility>
+          <role type="static"/>
+        </accessibility>
+      </object>
+    </child>
+  </object>
+  <object class="GtkPopover" id="notebook_info_popover2">
+    <property name="modal">0</property>
+    <child>
+      <object class="GtkBox">
+        <property name="orientation">horizontal</property>
+        <child>
+          <object class="GtkLabel">
+            <property name="label">Hidden gems:</property>
+          </object>
+        </child>
+        <child>
+          <object class="GtkMenuButton">
+            <property name="valign">center</property>
+            <property name="popover">notebook_info_popover3</property>
+            <property name="icon-name">emblem-important-symbolic</property>
+            <property name="relief">none</property>
+            <style>
+              <class name="circular"/>
+            </style>
+          </object>
+        </child>
+      </object>
+    </child>
+  </object>
 </interface>
--- a/docs/reference/gdk/gdk4-sections.txt
+++ b/docs/reference/gdk/gdk4-sections.txt
@@ -179,19 +179,18 @@ GdkSurfaceEdge
 GdkSurfaceTypeHint
 GdkSurfaceState
 gdk_surface_new_toplevel
-gdk_surface_new_popup
 gdk_surface_new_temp
-gdk_surface_new_child
+gdk_surface_new_popup
 gdk_surface_destroy
 gdk_surface_get_surface_type
 gdk_surface_get_display
 gdk_surface_show
 gdk_surface_show_unraised
+gdk_surface_show_with_auto_dismissal
 gdk_surface_hide
 gdk_surface_is_destroyed
 gdk_surface_is_visible
 gdk_surface_is_viewable
-gdk_surface_is_input_only
 gdk_surface_get_state
 gdk_surface_iconify
 gdk_surface_deiconify
@@ -208,12 +207,10 @@ gdk_surface_set_fullscreen_mode
 gdk_surface_set_keep_above
 gdk_surface_set_keep_below
 gdk_surface_set_opacity
-gdk_surface_set_pass_through
-gdk_surface_get_pass_through
 gdk_surface_move
 gdk_surface_resize
 gdk_surface_move_resize
-gdk_surface_has_native
+gdk_surface_move_to_rect
 gdk_surface_raise
 gdk_surface_lower
 gdk_surface_restack
@@ -232,15 +229,12 @@ gdk_surface_create_gl_context
 gdk_surface_create_vulkan_context

 <SUBSECTION>
-gdk_surface_invalidate_rect
-gdk_surface_invalidate_region
 gdk_surface_queue_expose
 gdk_surface_freeze_updates
 gdk_surface_thaw_updates
 gdk_surface_get_frame_clock

 <SUBSECTION>
-gdk_surface_set_user_data
 gdk_surface_set_accept_focus
 gdk_surface_get_accept_focus
 gdk_surface_set_focus_on_map
@@ -252,8 +246,6 @@ gdk_surface_set_title
 GDK_PARENT_RELATIVE
 gdk_surface_set_cursor
 gdk_surface_get_cursor
-gdk_surface_get_user_data
-gdk_surface_get_geometry
 gdk_surface_set_geometry_hints
 gdk_surface_get_width
 gdk_surface_get_height
@@ -263,29 +255,15 @@ gdk_surface_get_modal_hint
 gdk_surface_set_type_hint
 gdk_surface_get_type_hint
 gdk_surface_set_shadow_width
-gdk_surface_set_skip_taskbar_hint
-gdk_surface_set_skip_pager_hint
-gdk_surface_set_urgency_hint
 gdk_surface_get_position
-gdk_surface_get_root_origin
 gdk_surface_get_frame_extents
 gdk_surface_get_origin
-gdk_surface_get_root_coords
 gdk_surface_get_device_position
-gdk_surface_get_device_position_double
 GdkModifierType
 GdkModifierIntent
-gdk_surface_get_parent
-gdk_surface_get_toplevel
-gdk_surface_get_children
-gdk_surface_get_children_with_user_data
-gdk_surface_peek_children
 gdk_surface_set_icon_name
 gdk_surface_set_transient_for
-gdk_surface_set_role
 gdk_surface_set_startup_id
-gdk_surface_set_group
-gdk_surface_get_group
 gdk_surface_set_decorations
 gdk_surface_get_decorations
 GdkWMDecoration
@@ -298,10 +276,6 @@ gdk_surface_set_support_multidevice
 gdk_surface_get_device_cursor
 gdk_surface_set_device_cursor

-<SUBSECTION>
-gdk_surface_coords_from_parent
-gdk_surface_coords_to_parent
-
 <SUBSECTION Standard>
 GDK_SURFACE
 GDK_SURFACE_GET_CLASS
@@ -377,6 +351,7 @@ gdk_content_formats_builder_to_formats
 GDK_TYPE_FILE_LIST
 gdk_file_list_get_type
 gdk_content_formats_get_type
+gdk_content_formats_builder_get_type
 </SECTION>

 <SECTION>
@@ -442,6 +417,7 @@ gdk_keymap_get_modifier_state
 gdk_keymap_add_virtual_modifiers
 gdk_keymap_map_virtual_modifiers
 gdk_keymap_get_modifier_mask
+gdk_keymap_get_display

 <SUBSECTION>
 gdk_keyval_name
@@ -502,19 +478,12 @@ gdk_device_get_has_cursor
 gdk_device_get_n_axes
 gdk_device_get_n_keys
 gdk_device_get_axes
-gdk_device_warp
 gdk_device_get_seat

-<SUBSECTION>
-gdk_device_grab
-gdk_device_ungrab
-
 <SUBSECTION>
 gdk_device_get_state
 gdk_device_get_position
-gdk_device_get_position_double
 gdk_device_get_surface_at_position
-gdk_device_get_surface_at_position_double
 gdk_device_get_history
 gdk_device_free_history
 GdkTimeCoord
@@ -622,6 +591,7 @@ GDK_BUTTON_SECONDARY
 gdk_event_new
 gdk_event_copy
 gdk_event_get_axes
+gdk_event_get_axis
 gdk_event_get_button
 gdk_event_get_click_count
 gdk_event_get_coords
@@ -662,9 +632,6 @@ gdk_event_get_touchpad_gesture_n_fingers
 gdk_event_get_touchpad_gesture_phase
 gdk_event_get_touchpad_scale
 gdk_event_is_sent
-<SUBSECTION>
-gdk_event_handler_set
-GdkEventFunc

 <SUBSECTION>
 gdk_get_show_events
@@ -687,6 +654,7 @@ GDK_TYPE_SCROLL_DIRECTION
 GDK_TYPE_NOTIFY_TYPE
 GDK_IS_EVENT
 gdk_event_get_type
+gdk_event_sequence_get_type
 </SECTION>

 <SECTION>
@@ -782,7 +750,6 @@ GDK_ACTION_ALL

 gdk_drag_get_display
 gdk_drag_get_actions
-gdk_drag_get_suggested_action
 gdk_drag_get_selected_action
 gdk_drag_get_formats
 gdk_drag_get_device
@@ -1008,7 +975,6 @@ gdk_wayland_display_get_wl_display
 gdk_wayland_display_query_registry
 gdk_wayland_surface_new_subsurface
 gdk_wayland_surface_get_wl_surface
-gdk_wayland_surface_set_use_custom_surface
 GdkWaylandSurfaceExported
 gdk_wayland_surface_export_handle
 gdk_wayland_surface_unexport_handle
--- a/docs/reference/gdk/meson.build
+++ b/docs/reference/gdk/meson.build
@@ -15,7 +15,9 @@ private_headers = [
  'gdkdisplaymanagerprivate.h',
  'gdkdisplayprivate.h',
  'gdkdndprivate.h',
+  'gdkdragprivate.h',
  'gdkdrawcontextprivate.h',
+  'gdkdropprivate.h',
  'gdkeventsprivate.h',
  'gdkframeclockidleprivate.h',
  'gdkframeclockprivate.h',
--- a/docs/reference/gsk/gsk4-docs.xml
+++ b/docs/reference/gsk/gsk4-docs.xml
@@ -18,6 +18,8 @@
    <title>API Reference</title>
    <xi:include href="xml/GskRenderer.xml" />
    <xi:include href="xml/GskRenderNode.xml" />
+    <xi:include href="xml/GskRoundedRect.xml" />
+    <xi:include href="xml/GskTransform.xml" />
  </reference>

  <index id="api-index-full">
--- a/docs/reference/gsk/gsk4-sections.txt
+++ b/docs/reference/gsk/gsk4-sections.txt
@@ -2,9 +2,9 @@
 <FILE>GskRenderer</FILE>
 gsk_renderer_new_for_surface
 gsk_renderer_get_surface
-gsk_renderer_get_display
 gsk_renderer_realize
 gsk_renderer_unrealize
+gsk_renderer_is_realized
 gsk_renderer_render
 gsk_renderer_render_texture
 <SUBSECTION Standard>
@@ -67,11 +67,7 @@ gsk_container_node_get_n_children
 gsk_container_node_get_child
 gsk_transform_node_new
 gsk_transform_node_get_child
-gsk_transform_node_peek_transform
-gsk_offset_node_new
-gsk_offset_node_get_child
-gsk_offset_node_get_x_offset
-gsk_offset_node_get_y_offset
+gsk_transform_node_get_transform
 gsk_opacity_node_new
 gsk_opacity_node_get_child
 gsk_opacity_node_get_opacity
@@ -144,3 +140,42 @@ gsk_rounded_rect_contains_point
 gsk_rounded_rect_contains_rect
 gsk_rounded_rect_intersects_rect
 </SECTION>
+
+<SECTION>
+<FILE>GskTransform</FILE>
+GskTransform
+gsk_transform_ref
+gsk_transform_unref
+<SUBSECTION>
+GskTransformCategory
+gsk_transform_get_category
+<SUBSECTION>
+gsk_transform_print
+gsk_transform_to_string
+gsk_transform_parse
+<SUBSECTION>
+gsk_transform_to_matrix
+gsk_transform_to_2d
+gsk_transform_to_affine
+gsk_transform_to_translate
+<SUBSECTION>
+gsk_transform_transform
+gsk_transform_invert
+gsk_transform_matrix
+gsk_transform_translate
+gsk_transform_translate_3d
+gsk_transform_rotate
+gsk_transform_rotate_3d
+gsk_transform_scale
+gsk_transform_scale_3d
+gsk_transform_perspective
+<SUBSECTION>
+gsk_transform_equal
+<SUBSECTION>
+gsk_transform_transform_bounds
+<SUBSECTION Private>
+GSK_TYPE_TRANSFORM
+gsk_transform_get_type
+gsk_transform_new
+</SECTION>
+
--- a/docs/reference/gtk/css-overview.xml
+++ b/docs/reference/gtk/css-overview.xml
@@ -546,7 +546,7 @@ checkbutton:indeterminate {
      GTK adds several additional ways to specify colors.
    </para>

-<literallayout><code>〈gtk color〉 = 〈symbolic color〉 | 〈color expression〉 | 〈win32 color〉</code>
+<literallayout><code>〈gtk color〉 = 〈symbolic color〉 | 〈color expression〉</code>
 </literallayout>

    <para>
@@ -592,13 +592,6 @@ checkbutton:indeterminate {

 <literallayout><code>〈color expression〉 = lighter( 〈color〉 ) | darker( 〈color〉 ) | shade( 〈color〉, 〈number〉 ) |</code>
 <code>                     alpha( 〈color〉, 〈number〉 ) | mix( 〈color〉, 〈color〉, 〈number〉 )</code>
-</literallayout>
-
-    <para>
-      On Windows, GTK allows to refer to system colors, as follows:
-    </para>
-
-<literallayout><code>〈win32 color〉 = -gtk-win32-color( 〈name〉, 〈integer〉 )</code>
 </literallayout>

  </refsect2>
@@ -737,7 +730,7 @@ label {
      GTK extends the CSS syntax for images and also uses it for specifying icons.
    </para>

-<literallayout><code>〈gtk image〉 = 〈themed icon〉 | 〈scaled image〉 | 〈recolored image〉 | 〈win32 theme part〉</code>
+<literallayout><code>〈gtk image〉 = 〈themed icon〉 | 〈scaled image〉 | 〈recolored image〉</code>
 </literallayout>

    <para>
@@ -815,13 +808,6 @@ arrow {
 }
 ]]></programlisting>
    </example>
-    <para>
-      On Windows, GTK allows to refer to system theme parts as images, as follows:
-    </para>
-
-<literallayout><code>〈win32 theme part〉 = -gtk-win32-theme-part( 〈name〉, 〈integer〉 〈integer〉</code>
-<code>                                              [ , [ over( 〈integer〉 〈integer〉 [ , 〈alpha value〉 ]? ) | margins( 〈integer〉{1,4} ) ] ]* )</code>
-</literallayout>

  </refsect2>

--- a/docs/reference/gtk/css-properties.xml
+++ b/docs/reference/gtk/css-properties.xml
@@ -65,20 +65,6 @@ We use <literallayout> for syntax productions, and each line is put in a <code>
      not quite the same as the CSS definition of rem.
    </para>

-    <para>
-      Whereever a number is allowed, GTK also accepts a Windows-specific
-      theme size:
-    </para>
-
-<literallayout>
-<code>〈win32 theme size〉 = 〈win32 size〉 | 〈win32 part size〉</code>
-<code>〈win32 size〉 = -gtk-win32-size ( 〈theme name〉, 〈metric id〉 )</code>
-<code>〈win32 part size〉 = [ -gtk-win32-part-width | -gtk-win32-part-height |</code>
-<code>                      -gtk-win32-part-border-top | -gtk-win32-part-border-right |</code>
-<code>                      -gtk-win32-part-border-bottom | -gtk-win32-part-border-left ]</code>
-<code>                    ( 〈theme name〉 , 〈integer〉 , 〈integer〉 )</code>
-</literallayout>
-
 <literallayout><code>〈calc expression〉 = calc( 〈calc sum〉 )</code>
 <code>〈calc sum〉 = 〈calc product〉 [ [ + | - ] 〈calc product〉 ]*</code>
 <code>〈calc product〉 = 〈calc value〉 [ * 〈calc value〉 | / 〈number〉 ]*</code>
--- a/docs/reference/gtk/drawing-model.xml
+++ b/docs/reference/gtk/drawing-model.xml
@@ -26,72 +26,53 @@
      widgets and windows, you should read this chapter; this will be
      useful to know if you decide to implement your own widgets.  This
      chapter will also clarify the reasons behind the ways certain
-      things are done in GTK; for example, why you cannot change the
-      background color of all widgets with the same method.
+      things are done in GTK.
    </para>

    <refsect2 id="drawing model windows">
+
      <title>Windows and events</title>

      <para>
-        Programs that run in a windowing system generally create
-        rectangular regions in the screen called
-        <firstterm>windows</firstterm>.  Traditional windowing systems
-        do not automatically save the graphical content of windows, and
-        instead ask client programs to repaint those windows whenever it
-        is needed.  For example, if a window that is stacked below other
-        windows gets raised to the top, then a client program has to
-        repaint the area that was previously obscured.  When the
-        windowing system asks a client program to redraw part of a
-        window, it sends an <firstterm>exposure event</firstterm> to the
-        program for that window.
+        Applications that use a windowing system generally create
+        rectangular regions in the screen called <firstterm>surfaces</firstterm>
+        (GTK is following the Wayland terminology, other windowing systems
+        such as X11 may call these <firstterm>windows</firstterm>).
+        Traditional windowing systems do not automatically save the
+        graphical content of surfaces, and instead ask applications to
+        provide new content whenever it is needed.
+        For example, if a window that is stacked below other
+        windows gets raised to the top, then the application has to
+        repaint it, so the previously obscured area can be shown.
+        When the windowing system asks an application to redraw
+        a window, it sends a <firstterm>frame event</firstterm>
+        (<firstterm>expose event</firstterm> in X11 terminology)
+        for that window.
+      </para>
+      
+      <para>
+        Each GTK toplevel window or dialog is associated with a
+        windowing system surface. Child widgets such as buttons or
+        entries don't have their own surface; they use the surface
+        of their toplevel.
      </para>

      <para>
-        Here, "windows" means "rectangular regions with automatic
-        clipping", instead of "toplevel application windows".  Most
-        windowing systems support nested windows, where the contents of
-        child windows get clipped by the boundaries of their parents.
-        Although GTK and GDK in particular may run on a windowing
-        system with no such notion of nested windows, GDK presents the
-        illusion of being under such a system.  A toplevel window may
-        contain many subwindows and sub-subwindows, for example, one for
-        the menu bar, one for the document area, one for each scrollbar,
-        and one for the status bar.  In addition, controls that receive
-        user input, such as clickable buttons, are likely to have their
-        own subwindows as well.
-      </para>
-
-      <para>
-        In practice, most windows in modern GTK application are client-side
-        constructs. Only few windows (in particular toplevel windows) are
-        <emphasis>native</emphasis>, which means that they represent a
-        window from the underlying windowing system on which GTK is running.
-        For example, on X11 it corresponds to a <type>Window</type>; on Win32,
-        it corresponds to a <type>HANDLE</type>.
-      </para>
-
-      <para>
-        Generally, the drawing cycle begins when GTK receives an
-        exposure event from the underlying windowing system:  if the
+        Generally, the drawing cycle begins when GTK receives
+        a frame event from the underlying windowing system:  if the
        user drags a window over another one, the windowing system will
-        tell the underlying window that it needs to repaint itself.  The
+        tell the underlying surface that it needs to repaint itself.  The
        drawing cycle can also be initiated when a widget itself decides
        that it needs to update its display.  For example, when the user
-        types a character in a <link
-        linkend="GtkEntry"><classname>GtkEntry</classname></link>
-        widget, the entry asks GTK to queue a redraw operation for
-        itself.
+        types a character in an entry widget, the entry asks GTK to queue
+        a redraw operation for itself.
      </para>

      <para>
-        The windowing system generates events for native windows. The GDK
-        interface to the windowing system translates such native events into
-        <link linkend="GdkEvent"><structname>GdkEvent</structname></link>
-        structures and sends them on to the GTK layer.  In turn, the GTK layer
-        finds the widget that corresponds to a particular
-        <classname>GdkSurface</classname> and emits the corresponding event
-        signals on that widget.
+        The windowing system generates frame events for surfaces. The GDK
+        interface to the windowing system translates such events into
+        emissions of the ::render signal on the affected surfaces.
+        The GTK toplevel window connects to that signal, and reacts appropriately.
      </para>

      <para>
@@ -112,8 +93,13 @@
        it does. On top of this GTK has a frame clock that gives a
        “pulse” to the application. This clock beats at a steady rate,
        which is tied to the framerate of the output (this is synced to
-        the monitor via the window manager/compositor). The clock has
-        several phases:
+        the monitor via the window manager/compositor). A typical
+        refresh rate is 60 frames per second, so a new “pulse” happens
+        roughly every 16 milliseconds.
+      </para>
+
+      <para>
+        The clock has several phases:
        <itemizedlist>
          <listitem><para>Events</para></listitem>
          <listitem><para>Update</para></listitem>
@@ -125,24 +111,24 @@
      </para>

      <para>
-        The Events phase is a long stretch of time between each
-        redraw where we get input events from the user and other events
+        The Events phase is a stretch of time between each redraw where
+        GTK processes input events from the user and other events
        (like e.g. network I/O). Some events, like mouse motion are
-        compressed so that we only get a single mouse motion event per
-        clock cycle.
+        compressed so that only a single mouse motion event per clock 
+        cycle needs to be handled.
      </para>

      <para>
-        Once the Events phase is over we pause all external events and
-        run the redraw loop. First is the Update phase, where all
+        Once the Events phase is over, external events are paused and
+        the redraw loop is run. First is the Update phase, where all
        animations are run to calculate the new state based on the
        estimated time the next frame will be visible (available via
        the frame clock). This often involves geometry changes which
-        drives the next phase, Layout. If there are any changes in
-        widget size requirements we calculate a new layout for the
-        widget hierarchy (i.e. we assign sizes and positions). Then
-        we go to the Paint phase where we redraw the regions of the
-        window that need redrawing.
+        drive the next phase, Layout. If there are any changes in
+        widget size requirements the new layout is calculated for the
+        widget hierarchy (i.e. sizes and positions for all widgets are
+        determined). Then comes the Paint phase, where we redraw the
+        regions of the window that need redrawing.
      </para>

      <para>
@@ -184,162 +170,57 @@
      </para>
    </refsect2>

+    <refsect2 id="scene-graph">
+      <title>The scene graph</title>
+
+      <para>
+        The first step in “drawing” a window is that GTK creates
+        <firstterm>render nodes</firstterm> for all the widgets
+        in the window. The render nodes are combined into a tree
+        that you can think of as a <firstterm>scene graph</firstterm>
+        describing your window contents.
+      </para>
+      <para>
+        Render nodes belong to the GSK layer, and there are various kinds
+        of them, for the various kinds of drawing primitives you are likely
+        to need when translating widget content and CSS styling. Typical
+        examples are text nodes, gradient nodes, texture nodes or clip nodes.
+      <para>
+      <para>
+        In the past, all drawing in GTK happened via cairo. It is still possible
+        to use cairo for drawing your custom widget contents, by using a cairo
+        render node.
+      </para>
+      </para>
+        A GSK <firstterm>renderer</firstterm> takes these render nodes, transforms
+        them into rendering commands for the drawing API it targets, and arranges
+        for the resulting drawing to be associated with the right surface. GSK has
+        renderers for OpenGL, Vulkan and cairo.
+      </para>
+    </refsect2>
+
    <refsect2 id="hierarchical-drawing">
      <title>Hierarchical drawing</title>

      <para>
-        During the Paint phase we will send a single expose event to
-        the toplevel window. The event handler will create a cairo
-        context for the window and emit a GtkWidget::draw() signal
-        on it, which will propagate down the entire widget hierarchy
-        in back-to-front order, using the clipping and transform of
-        the cairo context. This lets each widget draw its content at
-        the right place and time, correctly handling things like
-        partial transparencies and overlapping widgets.
+        During the Paint phase GTK receives a single ::render signal on the toplevel
+        window. The signal handler will create a snapshot object (which is a
+        helper for creating a scene graph) and emit a GtkWidget::snapshot() signal,
+        which will propagate down the widget hierarchy. This lets each widget
+        snapshot its content at the right place and time, correctly handling things
+        like partial transparencies and overlapping widgets.
      </para>

      <para>
-        When generating the event, GDK also sets up double buffering to
-        avoid the flickering that would result from each widget drawing
-        itself in turn.  <xref linkend="double-buffering"/> describes
-        the double buffering mechanism in detail.
-      </para>
-        
-      <para>
-        Normally, there is only a single cairo context which is used in
-        the entire repaint, rather than one per GdkSurface. This means you
-        have to respect (and not reset) existing clip and transformations
-        set on it.
-      </para>
-
-      <para>
-        Most widgets, including those that create their own GdkSurfaces have
-        a transparent background, so they draw on top of whatever widgets
-        are below them. This was not the case in GTK 2 where the theme set
-        the background of most widgets to the default background color. (In
-        fact, transparent GdkSurfaces used to be impossible.)
-      </para>
-
-      <para>
-        The whole rendering hierarchy is captured in the call stack, rather
-        than having multiple separate draw emissions, so you can use effects
-        like e.g. cairo_push/pop_group() which will affect all the widgets
-        below you in the hierarchy. This makes it possible to have e.g.
-        partially transparent containers.
+        To avoid excessive work when generating scene graphs, GTK caches render nodes.
+        Each widget keeps a reference to its render node (which in turn, will refer to
+        the render nodes of children, and grandchildren, and so on), and will reuse
+        that node during the Paint phase. Invalidating a widget (by calling
+        gtk_widget_queue_draw()) discards the cached render node, forcing the widget
+        to regenerate it the next time it needs to handle a ::snapshot.
      </para>
    </refsect2>

-    <refsect2 id="scrolling drawing model">
-      <title>Scrolling</title>
-
-      <para>
-        Traditionally, GTK has used self-copy operations to implement
-        scrolling with native windows. With transparent backgrounds, this
-        no longer works. Instead, we just mark the entire affected area for
-        repainting when these operations are used. This allows (partially)
-        transparent backgrounds, and it also more closely models modern
-        hardware where self-copy operations are problematic (they break the
-        rendering pipeline).
-      </para>
-    </refsect2>
-
-  </refsect1>
-
-  <refsect1 id="double-buffering">
-    <title>Double buffering</title>
-
-    <para>
-      If each of the drawing calls made by each subwidget's
-      <literal>draw</literal> handler were sent directly to the
-      windowing system, flicker could result.  This is because areas may get
-      redrawn repeatedly:  the background, then decorative frames, then text
-      labels, etc.  To avoid flicker, GTK employs a <firstterm>double
-	buffering</firstterm> system at the GDK level.  Widgets normally don't
-      know that they are drawing to an off-screen buffer; they just issue their
-      normal drawing commands, and the buffer gets sent to the windowing system
-      when all drawing operations are done.
-    </para>
-
-    <para>
-      Two basic functions in GDK form the core of the double-buffering
-      mechanism:  <link
-      linkend="gdk_surface_begin_paint_region"><function>gdk_surface_begin_paint_region()</function></link>
-      and <link
-      linkend="gdk_surface_end_paint"><function>gdk_surface_end_paint()</function></link>.
-      The first function tells a <classname>GdkSurface</classname> to
-      create a temporary off-screen buffer for drawing.  All
-      subsequent drawing operations to this window get automatically
-      redirected to that buffer.  The second function actually paints
-      the buffer onto the on-screen window, and frees the buffer.
-    </para>
-
-    <refsect2 id="automatic-double-buffering">
-      <title>Automatic double buffering</title>
-
-      <para>
-	It would be inconvenient for all widgets to call
-	<function>gdk_surface_begin_paint_region()</function> and
-	<function>gdk_surface_end_paint()</function> at the beginning
-	and end of their draw handlers.
-      </para>
-
-      <para>
-	To make this easier, GTK normally calls
-        <function>gdk_surface_begin_paint_region()</function>
-        before emitting the #GtkWidget::draw signal, and
-	then it calls <function>gdk_surface_end_paint()</function>
-	after the signal has been emitted. This is convenient for
-	most widgets, as they do not need to worry about creating
-	their own temporary drawing buffers or about calling those
-	functions.
-      </para>
-
-      <para>
-	However, some widgets may prefer to disable this kind of
-	automatic double buffering and do things on their own.
-        To do this, call the
-        <function>gtk_widget_set_double_buffered()</function>
-        function in your widget's constructor. Double buffering
-        can only be turned off for widgets that have a native
-        window.
-      </para>
-
-      <example id="disabling-double-buffering">
-	<title>Disabling automatic double buffering</title>
-
-	<programlisting>
-static void
-my_widget_init (MyWidget *widget)
-{
-  ...
-
-  gtk_widget_set_double_buffered (widget, FALSE);
-
-  ...
-}
-	</programlisting>
-      </example>
-
-      <para>
-	When is it convenient to disable double buffering?  Generally,
-	this is the case only if your widget gets drawn in such a way
-	that the different drawing operations do not overlap each
-	other.  For example, this may be the case for a simple image
-	viewer:  it can just draw the image in a single operation.
-	This would <emphasis>not</emphasis> be the case with a word
-	processor, since it will need to draw and over-draw the page's
-	background, then the background for highlighted text, and then
-	the text itself.
-      </para>
-
-      <para>
-	Even if you turn off double buffering on a widget, you
-	can still call
-	<function>gdk_surface_begin_paint_region()</function> and
-	<function>gdk_surface_end_paint()</function> by hand to use
-	temporary drawing buffers.
-      </para>
-    </refsect2>
  </refsect1>

 </refentry>
--- a/docs/reference/gtk/getting_started.xml.in
+++ b/docs/reference/gtk/getting_started.xml.in
@@ -827,7 +827,7 @@ search_text_changed (GtkEntry         *entry,
  GtkTextBuffer *buffer;
  GtkTextIter start, match_start, match_end;

-  text = gtk_entry_get_text (entry);
+  text = gtk_editable_get_text (GTK_EDITABLE (entry));

  if (text[0] == '\0')
    return;
--- a/docs/reference/gtk/gtk4-broadwayd.xml
+++ b/docs/reference/gtk/gtk4-broadwayd.xml
@@ -54,16 +54,6 @@ Start your applications like this:
 <programlisting>
 GDK_BACKEND=broadway BROADWAY_DISPLAY=:5 gtk4-demo
 </programlisting>
-
-You can add password protection for your session by creating a file in
-<filename>$XDG_CONFIG_HOME/broadway.passwd</filename> or <filename>$HOME/.config/broadway.passwd</filename>
-with a crypt(3) style password hash.
-
-A simple way to generate it is with openssl:
-<programlisting>
-openssl passwd -1  > ~/.config/broadway.passwd
-</programlisting>
-
 </para>
 </refsect1>

--- a/docs/reference/gtk/gtk4-docs.xml
+++ b/docs/reference/gtk/gtk4-docs.xml
@@ -68,6 +68,7 @@

    <chapter id="WindowWidgets">
      <title>Windows</title>
+      <xi:include href="xml/gtkroot.xml" />
      <xi:include href="xml/gtkwindow.xml" />
      <xi:include href="xml/gtkdialog.xml" />
      <xi:include href="xml/gtkmessagedialog.xml" />
@@ -91,7 +92,6 @@
      <xi:include href="xml/gtkheaderbar.xml" />
      <xi:include href="xml/gtkoverlay.xml" />
      <xi:include href="xml/gtkpaned.xml" />
-      <xi:include href="xml/gtklayout.xml" />
      <xi:include href="xml/gtknotebook.xml" />
      <xi:include href="xml/gtkexpander.xml" />
      <xi:include href="xml/gtkorientable.xml" />
@@ -99,6 +99,17 @@
      <xi:include href="xml/gtkfixed.xml" />
    </chapter>

+    <chapter id="LayoutManagers">
+      <title>Layout Managers</title>
+      <xi:include href="xml/gtklayoutmanager.xml" />
+      <xi:include href="xml/gtklayoutchild.xml" />
+      <xi:include href="xml/gtkbinlayout.xml" />
+      <xi:include href="xml/gtkboxlayout.xml" />
+      <xi:include href="xml/gtkcustomlayout.xml" />
+      <xi:include href="xml/gtkfixedlayout.xml" />
+      <xi:include href="xml/gtkgridlayout.xml" />
+    </chapter>
+
    <chapter id="DisplayWidgets">
      <title>Display Widgets</title>
      <xi:include href="xml/gtklabel.xml" />
@@ -344,7 +355,6 @@
    <xi:include href="xml/gtkselection.xml" />
    <xi:include href="xml/gtktesting.xml" />
    <xi:include href="xml/filesystem.xml" />
-    <xi:include href="xml/gtktransform.xml" />
  </part>

  <part id="theming">
--- a/Show More
+++ b/Show More