[meld] (75 commits) ...Merge branch 'deprecation-cleanup' into 'master'

[Kai Willadsen <kaiw src gnome org>]

Summary of changes:

  63b64d1... vcview: Rename treeview popup helper (*)
  5c9d81e... vcview: Update popup handling for 3.22 deprecations (*)
  f66079e... filediff: Update popup handling for 3.22 deprecations (*)
  4fe2601... filediff, vcview: Use current event implicitly in popup han (*)
  b632dc2... dirdiff: Update filter menu popup to new API (*)
  39e9a37... dirdiff: Break sensitivity logic out from selection-changed (*)
  978fd58... dirdiff: Replace handler block/unblock dance with central s (*)
  e94759d... dirdiff: Port to new popup API (*)
  dcb867b... tree: Move common popup handling code to new class (*)
  842ad7a... ui.notebook: More new popup API changes (*)
  de91dad... gutterrendererchunk: Update to new popup API and fix positi (*)
  44f7792... misc: Remove now-unused custom popup positioning helper (*)
  06ffb75... ui.util: Port some GAction accelerator handling from GTK+ i (*)
  1fdd537... meldwindow: Add simple HeaderBar for the ex-application men (*)
  bb38fcc... meldwindow: Remove now-unnecessary additional menu handling (*)
  1076e00... meldwindow: Move the spinner to our HeaderBar (*)
  0b18604... ui.emblemcellrenderer: Use newer GObject property declarati (*)
  591778a... filediff: Remove reference to long-gone selector_hbox widge (*)
  906f851... bin/meld: Remove Python 2 remnant support (*)
  74617e1... melddoc: Remove unused status-changed signal (*)
  aa3b472... melddoc: Move stop() logic to MeldWindow (*)
  83aeeea... ui._gtktemplate: Add in template support from upstream (*)
  2b0a222... meldwindow: Migrate to Gtk.Template() construction (*)
  d075330... meldapp: Remove window-removed handling (*)
  9b44bb7... data/ui: Set more properties in the UI file (*)
  3693f94... meldwindow: Move realize signal handling to vfunc override (*)
  b81492e... gschema: Remove unused statusbar visibility configuration (*)
  3c65dfc... meldwindow: Remove support for hiding the toolbar (*)
  28a636d... meldwindow: Remove toolbar style support (*)
  ad17612... meldwindow: Fix template path locations (*)
  d32d268... filediff: Rework the keymask-focus handling to be purely te (*)
  91c3f4e... conf: Move to pathlib use (*)
  df786b9... Add scaffolding for GResource build + load support (*)
  3f049f5... data: Move all action icons to resource loading (*)
  243f1f6... bin/meld: Try to load gresources even in development (*)
  17e7642... data: Move the shortcut dialog UI to resource loading (*)
  d71e3b9... data: Move MeldWindow UI to resource loading (*)
  8c2b7ee... data: Move gear menu to resource loading (*)
  c56dfe8... data: Move About dialog to resource loading (*)
  b9051a2... patchdialog: Migrate to template construction and resource  (*)
  85230ab... vcdialogs: Move push & commit dialogs to templates and reso (*)
  f63e2e2... resources: Add in missed patch dialog (*)
  79140ba... filediff: Move revert dialog to resource loading (*)
  ca4c58f... filediff: Move save confirmation dialog to resource loading (*)
  1029ce2... ui: Migrate status bar selectors from template hack to real (*)
  1d7275e... ui.bufferselectors: Absorb FilteredListSelector (*)
  e0d7014... preferences: Migrate list widgets to templates and resource (*)
  a5c117e... preferences: Move to template and resource loading (*)
  d14f60a... resources: Add in omitted prefs dialog (*)
  9fd5f4c... meldwindow, ui.notebook: Update containers to handle actual (*)
  8360556... newdifftab: Migrate to template and resource loading (*)
  0f5ed7d... ui._gtktemplate: Raise when we find unmatched callbacks (*)
  de3dd62... melddoc: Move label-changed to new signal style (*)
  c63de74... Migrate close signal to new Signal style (*)
  708bae3... Rename state-changed signal to avoid name clash and move to (*)
  1724d03... filediff: Remove current-diff-changed signal (*)
  9ce12d0... meldbuffer: Move file-changed to Signal (*)
  3319cba... melddoc: Move file-changed to Signal (*)
  ea1b50e... melddoc: Migrate create-diff to Signal (*)
  f2887a2... melddoc: Move next-diff-changed to Signal (*)
  6252d97... vcview: Migrate to template and resource loading (*)
  bc873ce... dirdiff: Migrate to template and resource loading (*)
  a15453d... filediff: Move to template and resource loading (*)
  21c69f5... preferences: Fix column selector UI for template changes (*)
  3a6b647... findbar: Move to template and resource loading (*)
  189c250... Fix a few missed widget accesses (*)
  e95fb28... Replace gnomeglade imports with their source (*)
  1a165cd... ui.gnomeglade: Remove this now-unused module (*)
  c6930cc... Remove remaining `.widget` accesses (*)
  b637874... Remove remaining pyobject accesses (*)
  d7222d2... Add compiled gresource to git ignore (*)
  41bb22a... Merge branch 'master' into deprecation-cleanup (*)
  d0cccee... test: Update tests to 'handle' resource construction (*)
  505e7e2... ui._gtktemplate: Pacify flake8 import order (*)
  b2514b8... Merge branch 'deprecation-cleanup' into 'master'

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