[gtk] (37 commits) Non-fast-forward update to branch wip/matthiasc/popup2

[Matthias Clasen <matthiasc src gnome org>]

The branch 'wip/matthiasc/popup2' 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:

  8158f4a... Redo the idle sizer
  5f5a615... css: Use the new idle sizer
  bb56079... widget: Use the new idle sizer
  ad63193... window: Implement GtkRoot::check_resize
  43d0a92... Introduce GtkPopup
  5004468... testpopup: Use a GtkPopup
  77d0ebc... widget: guard popover-specific code paths
  7122eef... main: guard window-specific code paths
  d05845a... Add a way to enumerate popups
  dcc2a5c... inspector: Show popups
  1782f7b... root: Add default handling
  2932d32... root: Add an activate_focus api
  9ab1525... window: Implement GtkRoot::default-widget
  337c79c... popup: Implement the GtkRoot::default-widget
  6070c9d... widget: Make grabbing default work for roots
  80237c7... text: Make default activation work in roots
  a9e2e05... label: Make default activation work in roots
  a80a696... root: Add api for mnemonics
  93240c1... window: Implement root mnemonic api
  99ae41d... popup: Implement mnemonics
  4d4d06a... label: Use root api for mnemonic setup
  6eb9d87... main: Use root api for mnemonic activation
  e5f33e8... popup: Add more keybindings
  be2f1c1... popup: Add backdrop
  d51bd89... root: Add pointer focus apis
  2716408... window: Implement root pointer focus apis
  98b0d8a... popup: Implement root pointer focus apis
  e50e928... main: Use root pointer focus apis
  a038eda... widget: Use root pointer focus apis
  c155825... small fixup
  2f9a512... popup on demand
  3ec20f2... baby steps towards not being a toplevel
  ec17a14... popup: focus the surface
  f5311dd... widget: Review and replace uses of get_toplevel
  44a5081... icon view accessible: Stop presenting windows
  381e558... more toplevel cleanups
  df87df0... widget: Don't snapshot foreign children
  112c418... popup fixes
  06e2a4d... popup: fix re-showing
  2f24e0f... Attach the popup to the entry

Commits added to the branch:

  8650980... Adapt to motion controller api change (*)
  0d91481... One forgotten leave signal handler (*)
  7cb29a6... Redo the idle sizer
  684d579... css: Use the new idle sizer
  de52b57... widget: Use the new idle sizer
  a2c58b8... window: Implement GtkRoot::check_resize
  517783d... Introduce GtkPopup
  677663c... testpopup: Use a GtkPopup
  023f799... widget: guard popover-specific code paths
  e5bb140... main: guard window-specific code paths
  10befc0... Add a way to enumerate popups
  f831635... inspector: Show popups
  9c1326e... root: Add default handling
  b339f3f... root: Add an activate_focus api
  05bd6fc... window: Implement GtkRoot::default-widget
  fdf2c07... popup: Implement the GtkRoot::default-widget
  3b68222... widget: Make grabbing default work for roots
  9e16a05... text: Make default activation work in roots
  07d73e0... label: Make default activation work in roots
  762ea4b... root: Add api for mnemonics
  76538af... window: Implement root mnemonic api
  4af83cd... popup: Implement mnemonics
  ffcceaf... label: Use root api for mnemonic setup
  f991c15... main: Use root api for mnemonic activation
  102d1eb... popup: Add more keybindings
  d490c30... popup: Add backdrop
  2a9f3ce... root: Add pointer focus apis
  d625885... window: Implement root pointer focus apis
  69ac4eb... popup: Implement root pointer focus apis
  a4d4ac3... main: Use root pointer focus apis
  d0f3582... widget: Use root pointer focus apis
  0d63e38... popup: Miscellaneous fixes
  6e5400f... testpopup: popup on demand
  891d495... widget: Review and replace uses of get_toplevel
  7415a04... icon view accessible: Stop presenting windows
  1c226f1... widget: Don't snapshot foreign children
  57aacbe... popup: Use xdg-popup for relative placement

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