[gnome-shell] extensions-app: Use Adw.Application's automatic style loading

[Marge Bot <marge-bot src gnome org>]

commit f0754431bffca1c510965df011846372c7518926
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Jan 5 14:51:53 2022 +0100

    extensions-app: Use Adw.Application's automatic style loading
    
    Now that we switched to AdwApplication, we can automate loading
    the custom stylesheet by simply using the expected name and
    resource prefix.
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1997>

 .../extensions-app/data/css/{application.css => style.css} |  0
 subprojects/extensions-app/data/meson.build                |  6 +++++-
 ...urce.xml => org.gnome.Extensions.data.gresource.xml.in} |  6 ++++--
 subprojects/extensions-app/js/main.js                      | 14 +-------------
 4 files changed, 10 insertions(+), 16 deletions(-)
---
diff --git a/subprojects/extensions-app/data/css/application.css 
b/subprojects/extensions-app/data/css/style.css
similarity index 100%
rename from subprojects/extensions-app/data/css/application.css
rename to subprojects/extensions-app/data/css/style.css
diff --git a/subprojects/extensions-app/data/meson.build b/subprojects/extensions-app/data/meson.build
index 4b601e8bd1..4f24267b04 100644
--- a/subprojects/extensions-app/data/meson.build
+++ b/subprojects/extensions-app/data/meson.build
@@ -1,6 +1,10 @@
 gnome.compile_resources(
   app_id + '.data',
-  base_id + '.data.gresource.xml',
+  configure_file(
+    input: base_id + '.data.gresource.xml.in',
+    output: app_id + '.data.gresource.xml',
+    configuration: {'profile': '/'.join(profile.split('.')) },
+  ),
   gresource_bundle: true,
   install: true,
   install_dir: pkgdatadir
diff --git a/subprojects/extensions-app/data/org.gnome.Extensions.data.gresource.xml 
b/subprojects/extensions-app/data/org.gnome.Extensions.data.gresource.xml.in
similarity index 69%
rename from subprojects/extensions-app/data/org.gnome.Extensions.data.gresource.xml
rename to subprojects/extensions-app/data/org.gnome.Extensions.data.gresource.xml.in
index 659c03ffc8..ca04c08c12 100644
--- a/subprojects/extensions-app/data/org.gnome.Extensions.data.gresource.xml
+++ b/subprojects/extensions-app/data/org.gnome.Extensions.data.gresource.xml.in
@@ -1,8 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <gresources>
-  <gresource prefix="/org/gnome/Extensions">
-    <file>css/application.css</file>
+  <gresource prefix="/org/gnome/Extensions@profile@">
+    <file alias="style.css">css/style.css</file>
+  </gresource>
 
+  <gresource prefix="/org/gnome/Extensions">
     <file>dbus-interfaces/org.gnome.Shell.Extensions.xml</file>
 
     <file>ui/extension-row.ui</file>
diff --git a/subprojects/extensions-app/js/main.js b/subprojects/extensions-app/js/main.js
index cbdac693f2..563cd7e456 100644
--- a/subprojects/extensions-app/js/main.js
+++ b/subprojects/extensions-app/js/main.js
@@ -1,10 +1,9 @@
 /* exported main */
-imports.gi.versions.Gdk = '4.0';
 imports.gi.versions.Gtk = '4.0';
 
 const Gettext = imports.gettext;
 const Package = imports.package;
-const { Adw, Gdk, GLib, Gio, GObject, Gtk, Shew } = imports.gi;
+const { Adw, GLib, Gio, GObject, Gtk, Shew } = imports.gi;
 
 Package.initFormat();
 
@@ -58,17 +57,6 @@ class Application extends Adw.Application {
     vfunc_startup() {
         super.vfunc_startup();
 
-        let provider = new Gtk.CssProvider();
-        let uri = 'resource:///org/gnome/Extensions/css/application.css';
-        try {
-            provider.load_from_file(Gio.File.new_for_uri(uri));
-        } catch (e) {
-            logError(e, 'Failed to add application style');
-        }
-        Gtk.StyleContext.add_provider_for_display(Gdk.Display.get_default(),
-            provider,
-            Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
-
         const action = new Gio.SimpleAction({ name: 'quit' });
         action.connect('activate', () => this._window.close());
         this.add_action(action);