Draft: GTK4

Let's open a draft.

Cleanups split from this branch so far:

• !1034 (merged)
• !1035 (merged)
• !1036 (merged)
• !1038 (merged)
• !1071 (merged)
• !1072 (merged)
• !1074 (merged)
• !1075 (merged)
• !1077 (merged)
• !1081 (merged)
• !1083 (merged)
• !1085 (merged)
• !1089 (merged)
• !1090 (merged)
• !1096 (merged)

Still tons of things missing, TODO (a bit of a braindump):

• embed/
  • contrib/gd-tagged-entry.c - needs a rewrite
  • ephy-download.c - monotonic/current event time
  • ephy-embed.c - floating bar doesn't move correctly
  • ephy-find-toolbar.c
    • replace the placeholder entry with something proper
    • shortcuts
  • ephy-web-view.c - key and button events
• lib/
  • widgets/
    • contrib/nautilus-floating-bar.c - hover, uncomment
    • ephy-certificate-dialog.c - needs gcr!82 (merged)
    • ephy-download-widget.c - drag source
    • ephy-downloads-popover.c - GDK_CURRENT_TIME might be wrong
    • ephy-downloads-progress-icon.c - rewrite
    • ephy-location-entry.c
      • suggestions
        • dns prefetch
        • scrolling on focus - needs gtk!4476
        • favicons don't seem to load
        • when moving the window, the popover doesn't disappear
        • there's a behavior difference with hover/keynav interaction
      • keys
      • context menu
      • figure out undo/redo - GtkText can already do it in 4
        • undo on esc
      • page actions
      • primary clipboard
      • normalize url on cut/copy
    • ephy-location-entry-old.c - remove once location entry is done
    • ephy-security-popover.c
      • relative-to/parent
      • integrate the cert dialog
  • ephy-dnd.c - uncomment, probably rewrite
  • ephy-gui.c - kill ephy_gui_get_current_event()
• src/
  • bookmarks/
    • ephy-add-bookmark-popover.c - relative-to/parent
      • Default focus doesn't work
    • ephy-bookmarks-popover.c - middle click and flags
  • preferences/
    • ephy-data-view.c - shortcuts
    • ephy-prefs-dialog.c
      • shortcuts
      • delete event
    • prefs-appearance-page.c - lost custom fonts in combo row
    • prefs-general-page.c - languages list has complex dnd
  • resources/style.css
    • entry icons
    • downloads button
    • language rows
  • webextension/web-extension-manager.c - destroy fixme
  • ephy-action-bar-end.c
    • integrate add bookmark popover
    • theatrics
  • ephy-action-bar-start.c
    • back/forward menu
      • regressed hidpi favicons
    • middle clicking buttons
  • ephy-firefox-sync-dialog.c
    • integrate synced tabs code
  • ephy-fullscreen-box.c - focus
  • ephy-header-bar.c - integrate add bookmark popover
  • ephy-history-dialog.c - shortcuts, type to search
  • ephy-link.c - kill ephy_link_flags_from_current_event()
  • ephy-location-controller.c
    • dnd
    • ephy_link_flags_from_current_event()
    • suggestion model
  • ephy-lockdown.c - uncomment actions
    • bookmark page
    • context bookmark page
  • ephy-mouse-gesture-controller.c - uncomment
  • ephy-pages-popover.c - messed up styling
  • ephy-pages-view.c - messed up styling
  • ephy-shell.c - monotonic/event time
  • ephy-tab-view.c - dnd
  • ephy-window.c
    • key press event
    • undo/redo
    • save
    • save app
    • cut/copy/paste
    • bookmark page
    • context bookmark page
    • location search
    • integrate new location entry
    • move/resize,
    • context menu - needs https://bugs.webkit.org/show_bug.cgi?id=233785
    • integrate mouse gestures
    • window state event
    • should save state
    • lock clicked
    • default browser
    • delete event
    • destroy
  • synced-tabs-dialog.c - uncomment
  • popup-commands.c - filename suggested
  • window-commands.c
    • add bookmarks popover
    • save as app
    • save as
    • undo/redo
    • cut/copy/paste
    • paste as plain text
    • open bookmark flags
    • bookmark page
    • location search
• tests/
  • uncomment history test
  • uncomment location test
  • encodings test fails (might be preexisting)

Probably a bunch of new bugs as well - too early to report them just yet.