Go through global stage for getting ClutterBackend

Instead of using the default backend.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3528>

js/ui/kbdA11yDialog.js

@@ -17,7 +17,7 @@ class KbdA11yDialog extends GObject.Object {
 
         this._a11ySettings = new Gio.Settings({schema_id: KEYBOARD_A11Y_SCHEMA});
 
-        let seat = Clutter.get_default_backend().get_default_seat();
+        const seat = global.stage.context.get_backend().get_default_seat();
         seat.connect('kbd-a11y-flags-changed',
             this._showKbdA11yDialog.bind(this));
     }

js/ui/keyboard.js

@@ -1059,7 +1059,7 @@ export class KeyboardManager extends Signals.EventEmitter {
         this._a11yApplicationsSettings = new Gio.Settings({schema_id: A11Y_APPLICATIONS_SCHEMA});
         this._a11yApplicationsSettings.connect('changed', this._syncEnabled.bind(this));
 
-        this._seat = Clutter.get_default_backend().get_default_seat();
+        this._seat = global.stage.context.get_backend().get_default_seat();
         this._seat.connect('notify::touch-mode', this._syncEnabled.bind(this));
 
         this._lastDevice = null;
@@ -1984,7 +1984,7 @@ class KeyboardController extends Signals.EventEmitter {
     constructor() {
         super();
 
-        let seat = Clutter.get_default_backend().get_default_seat();
+        let seat = global.stage.context.get_backend().get_default_seat();
         this._virtualDevice = seat.create_virtual_device(Clutter.InputDeviceType.KEYBOARD_DEVICE);
 
         this._inputSourceManager = InputSourceManager.getInputSourceManager();

js/ui/main.js

@@ -236,9 +236,9 @@ async function _initializeUI() {
         screenShield = new ScreenShield.ScreenShield();
 
     inputMethod = new InputMethod.InputMethod();
-    Clutter.get_default_backend().set_input_method(inputMethod);
+    global.stage.context.get_backend().set_input_method(inputMethod);
     global.connect('shutdown',
-        () => Clutter.get_default_backend().set_input_method(null));
+        () => global.stage.context.get_backend().set_input_method(null));
 
     screenshotUI = new Screenshot.ScreenshotUI();
 

js/ui/padOsd.js

@@ -950,7 +950,7 @@ export class PadOsdService extends Signals.EventEmitter {
 
     ShowAsync(params, invocation) {
         let [deviceNode, editionMode] = params;
-        let seat = Clutter.get_default_backend().get_default_seat();
+        const seat = global.stage.context.get_backend().get_default_seat();
         let devices = seat.list_devices();
         let padDevice = null;
 

js/ui/pointerA11yTimeout.js

@@ -110,7 +110,7 @@ const PieTimer = GObject.registerClass({
 
 export class PointerA11yTimeout {
     constructor() {
-        let seat = Clutter.get_default_backend().get_default_seat();
+        const seat = global.stage.context.get_backend().get_default_seat();
 
         seat.connect('ptr-a11y-timeout-started', (o, device, type, timeout) => {
             let [x, y] = global.get_pointer();

src/shell-blur-effect.c

@@ -21,6 +21,7 @@
 #include <mtk/mtk.h>
 
 #include "shell-blur-effect.h"
+#include "shell-global.h"
 
 #include "shell-enum-types.h"
 
@@ -107,8 +108,13 @@ create_base_pipeline (void)
 
   if (G_UNLIKELY (base_pipeline == NULL))
     {
-      CoglContext *ctx =
+      ShellGlobal *global = shell_global_get ();
-        clutter_backend_get_cogl_context (clutter_get_default_backend ());
+      ClutterStage *stage = shell_global_get_stage (global);
+      ClutterContext *clutter_context =
+        clutter_actor_get_context (CLUTTER_ACTOR (stage));
+      ClutterBackend *backend =
+        clutter_context_get_backend (clutter_context);
+      CoglContext *ctx = clutter_backend_get_cogl_context (backend);
 
       base_pipeline = cogl_pipeline_new (ctx);
       cogl_pipeline_set_layer_null_texture (base_pipeline, 0);
@@ -187,8 +193,13 @@ update_fbo (FramebufferData *data,
             unsigned int     height,
             float            downscale_factor)
 {
-  CoglContext *ctx =
+  ShellGlobal *global = shell_global_get ();
-    clutter_backend_get_cogl_context (clutter_get_default_backend ());
+  ClutterStage *stage = shell_global_get_stage (global);
+  ClutterContext *clutter_context =
+    clutter_actor_get_context (CLUTTER_ACTOR (stage));
+  ClutterBackend *backend =
+    clutter_context_get_backend (clutter_context);
+  CoglContext *ctx = clutter_backend_get_cogl_context (backend);
 
   g_clear_object (&data->texture);
   g_clear_object (&data->framebuffer);

src/shell-glsl-effect.c

@@ -15,6 +15,8 @@
 #include <cogl/cogl.h>
 #include "shell-glsl-effect.h"
 
+#include "shell-global.h"
+
 typedef struct _ShellGLSLEffectPrivate ShellGLSLEffectPrivate;
 struct _ShellGLSLEffectPrivate
 {
@@ -104,8 +106,6 @@ shell_glsl_effect_constructed (GObject *object)
   ShellGLSLEffect *self;
   ShellGLSLEffectClass *klass;
   ShellGLSLEffectPrivate *priv;
-  CoglContext *ctx =
-    clutter_backend_get_cogl_context (clutter_get_default_backend ());
 
   G_OBJECT_CLASS (shell_glsl_effect_parent_class)->constructed (object);
 
@@ -119,6 +119,14 @@ shell_glsl_effect_constructed (GObject *object)
 
   if (G_UNLIKELY (klass->base_pipeline == NULL))
     {
+      ShellGlobal *global = shell_global_get ();
+      ClutterStage *stage = shell_global_get_stage (global);
+      ClutterContext *clutter_context =
+        clutter_actor_get_context (CLUTTER_ACTOR (stage));
+      ClutterBackend *backend =
+        clutter_context_get_backend (clutter_context);
+      CoglContext *ctx = clutter_backend_get_cogl_context (backend);
+
       klass->base_pipeline = cogl_pipeline_new (ctx);
       cogl_pipeline_set_blend (klass->base_pipeline, "RGB = ADD (SRC_COLOR * (SRC_COLOR[A]), DST_COLOR * (1-SRC_COLOR[A]))", NULL);
 

src/shell-invert-lightness-effect.c

@@ -116,7 +116,13 @@ shell_invert_lightness_effect_init (ShellInvertLightnessEffect *self)
   if (G_UNLIKELY (klass->base_pipeline == NULL))
     {
       CoglSnippet *snippet;
-      CoglContext *ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
+      ShellGlobal *global = shell_global_get ();
+      ClutterStage *stage = shell_global_get_stage (global);
+      ClutterContext *clutter_context =
+        clutter_actor_get_context (CLUTTER_ACTOR (stage));
+      ClutterBackend *backend =
+        clutter_context_get_backend (clutter_context);
+      CoglContext *ctx = clutter_backend_get_cogl_context (backend);
 
       klass->base_pipeline = cogl_pipeline_new (ctx);
 

tests/shell/closeWithActiveWindows.js

@@ -12,7 +12,7 @@ export async function run() {
     /* Make created windows remain visible during exit. */
     await Scripting.disableHelperAutoExit();
 
-    const seat = Clutter.get_default_backend().get_default_seat();
+    const seat = global.stage.context.get_backend().get_default_seat();
     const virtualDevice_ =
         seat.create_virtual_device(Clutter.InputDeviceType.KEYBOARD_DEVICE);