[gtk] (108 commits) Non-fast-forward update to branch popover-menu-custom-child

[Matthias Clasen <matthiasc src gnome org>]

The branch 'popover-menu-custom-child' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  3e58312... popovermenu: Allow custom items
  ee73b76... fixup: Only allow one child per slot
  4d8f7bc... Tweak memory management for custom slots
  ba4d181... Add remove_child too
  f160fda... popovermenu: Allow adding custom items in ui files
  2fb4b4b... popovermenubar: Allow adding custom items in ui files
  1df71f1... widget-factory: Add a scale to the gear menu

Commits added to the branch:

  efbbfb6... meson: Simplify how cairo dependencies are checked (*)
  6ae9f7e... meson: Simplify xinerama dependency check (*)
  ea3933b... meson: Make vulkan and xinerama optional deps default to 'a (*)
  a4aa6d7... meson: Use feature options for media and print backends (*)
  d9b216e... widget: Always update the CSS node (*)
  d779023... box: Remove unnecessary code (*)
  ddd1b09... notebook: Remove unnecessary code (*)
  074d54e... listitemwidget: Remove unnecessary code (*)
  2210008... listbox: Reorder the widgets when sorting (*)
  9317a9f... flowbox: Keep widget order (*)
  23e0860... entry: Keep widget order (*)
  8dad615... gtk: Remove unused header include (*)
  45400fe... Merge branch 'wip/otte/for-master' into 'master' (*)
  6a1cb33... docs: Mention subclassing and destroy in the migration guid (*)
  a8baee3... a11y: Fix handling of LABELLED_BY relation (*)
  e20a333... atsi: Fix emission of text selection changes (*)
  6741170... inspector: Show accessible object path (*)
  ef9ec43... a11y: Add some more tests (*)
  2023914... docs: Document accessible roles of some classes (*)
  3412442... docs: Document more accessible roles (*)
  36d4a80... docs: Document more accessible roles (*)
  8e17021... Cosmetics (*)
  cbb6828... docs: Document more accessible roles (*)
  31a0724... widget: Add missing (nullable) on binding functions (*)
  0b5b908... Merge branch 'wip/exalm/nullable' into 'master' (*)
  8880e3b... Merge branch 'matthiasc/for-master' into 'master' (*)
  3df0a33... frame: Set up accessible relations (*)
  b7fa00e... Cosmetics (*)
  39dfdac... range: Hide internals from accessibility (*)
  81371e7... columnview: Put overshoot underneath the headers (*)
  700ca3b... gestureswipe: Count last event when calculating velocity (*)
  32b826e... Merge branch 'wip/exalm/swipe4' into 'master' (*)
  043ffd3... text: React to text attribute changes in css (*)
  b5b8f42... Merge branch 'matthiasc/for-master' into 'master' (*)
  6153efd... Document GTK_ACCESSIBLE_ROLE_NONE (*)
  3151906... docs: Small corrections to the a11y overview (*)
  d7794bf... docs: Add some more to the migration guide (*)
  48bb920... a11y: Treat PRESENTATION like NONE (*)
  8f10026... scale: Hide internal structure from a11y (*)
  ca9b068... switch: Hide internal structure from a11y (*)
  14a64c7... levelbar: Hide internal structure from a11y (*)
  d3089eb... progressbar: Hide internal structure from a11y (*)
  7ac6e25... Use GtkApplication in the examples (*)
  b9ae54c... separator: Remove unnecessary code (*)
  087c007... menubutton: initial accessibility setup (*)
  1b7a99c... Apply 1 suggestion(s) to 1 file(s) (*)
  2bfd419... popovermenu: Initial accessibility setup (*)
  758bcd5... popovermenubar: Initial accessibility setup (*)
  f96a1cf... modelbutton: Initial accessibility setup (*)
  3e43dda... modelbutton: Recreate our AT context (*)
  88eb3a9... atspi: Give model buttons a click action too (*)
  5f8c6d2... a11y: Document roles used in menu (*)
  bcbc615... a11y: Document abstract roles (*)
  800eb76... linkbutton: Use the LINK role (*)
  daf3b3a... Merge branch 'matthiasc/for-master' into 'master' (*)
  3805e1d... colorswatch: Export some functions for a11y (*)
  ba290eb... a11y: Add actions for color swatches (*)
  e2b3cba... colorbutton: Improve accessibility (*)
  ed571ae... picture: Set alternative text as description (*)
  ef7499a... gtk-demo: Add alternative text to a GtkPicture (*)
  44c6619... gtk-demo: Speed up image demo (*)
  6c796cf... docs: Fix cross-linking for GIO types (*)
  a923be9... Merge branch 'matthiasc/for-master' into 'master' (*)
  700f957... Adwaita: Set border-spacing for entries (*)
  e5722fe... passwordentry: Respect border spacing (*)
  3a08706... dropdown: Add an icon the search entry (*)
  6ce2e19... Merge branch 'ebassi/for-master' into 'master' (*)
  7671c10... Tweak focus tests (*)
  b973f7f... Merge branch 'matthiasc/for-master' into 'master' (*)
  10d7ccc... window: Fix state updates (*)
  fdb1fa4... Give all search entries an icon (*)
  cb8bf65... editablelabel: Properly clean up in dispose (*)
  83fbdcd... Merge branch 'matthiasc/for-master' into 'master' (*)
  6b53a55... NEWS: Updates (*)
  c5ed5c5... gdk: Deliver queued events on flush (*)
  77af993... Merge branch 'flush-events' into 'master' (*)
  d1d9b92... Merge branch 'meson-deps-continued' into 'master' (*)
  0a3b370... Cosmetics (*)
  13b9b9b... scale: Set round-digits to -1 initially (*)
  a03581c... Update Polish translation (*)
  37d4932... a11y: Add more tests (*)
  09eda80... docs: Add GtkWindowControls to the gallery (*)
  86b4b2e... docs: Fix links from the gallery (*)
  b7728a8... docs: Tweak gallery ordering (*)
  163d32e... docs: Work around GtkPicture growing (*)
  b0fb31f... docs: Some reordering in the gallery (*)
  2e0822b... docs: Shrink the editable label gallery image (*)
  a9f0f18... docs: Tweak gallery layout (*)
  64e131f... docs: Improve the GtkVideo gallery image (*)
  28b7962... docs: Improve the GtkMediaControls gallery image (*)
  dffe6b8... docs: Add GtkCalendar to the gallery (*)
  a70c9c6... docs: Fix the GtkVolumeButton gallery image (*)
  59e08c0... docs: Tweak gallery layout (*)
  291c618... docs: Improve the GtkStackSidebar gallery image (*)
  42e2c54... docs: Redo the GtkColorChooserDialog gallery image (*)
  8692f5d... docs: Add GtkEmojiChooser to the gallery (*)
  1605ca0... docs: Add GtkExpander to the gallery (*)
  bed3616... docs: Add GtkPopoverMenuBar to the gallery (*)
  65f748f... docs: Add GtkPopover to the widget gallery (*)
  d9259fc... docs: Add GtkPopoverMenu to the widget gallery (*)
  b67eee5... docs: Add GtkShortcutsWindow to the widget gallery (*)
  e51a98d... docs: Add GtkDrawingArea to the gallery (*)
  4661f15... Merge branch 'matthiasc/for-master' into 'master' (*)
  0493e89... Fix the build with cups < 2.2.12 (*)
  61e08ba... Merge branch 'master' into 'master' (*)
  8157abe... popovermenu: Allow custom items
  af6c301... popovermenu: Allow adding custom items in ui files
  0faadef... widget-factory: Add a scale to the gear menu

(*) This commit already existed in another branch; no separate mail sent