layout: Properly order startup initialization

In order to make sure that the struts and regions are initialized,
we need to make sure that we do with the conditions that nothing
is transformed, like the uiGroup, and that everything is visible.

These invariants broke during a fix to hide the UI until the
system background texture could be loaded. Now, reorder things so
that the system background is loaded, and then the UI is properly
loaded, and so on.

https://bugzilla.gnome.org/show_bug.cgi?id=696159

diff --git a/js/ui/layout.js b/js/ui/layout.js
index 9ad33f131f65fe3645a613cbe847d7672f69e1a9..68166ab063c02c981b7eade03514b731d42fe903 100644 (file)
--- a/js/ui/layout.js
+++ b/js/ui/layout.js
@@ -248,7 +248,7 @@ const LayoutManager = new Lang.Class({
     init: function() {
         Main.sessionMode.connect('updated', Lang.bind(this, this._sessionUpdated));
 
-        this._prepareStartupAnimation();
+        this._loadBackground();
     },
 
     showOverview: function() {
@@ -557,6 +557,25 @@ const LayoutManager = new Lang.Class({
         return this._keyboardIndex;
     },
 
+    _loadBackground: function() {
+        this._systemBackground = new Background.SystemBackground();
+        this._systemBackground.actor.hide();
+
+        global.stage.insert_child_below(this._systemBackground.actor, null);
+
+        let constraint = new Clutter.BindConstraint({ source: global.stage,
+                                                      coordinate: Clutter.BindCoordinate.ALL });
+        this._systemBackground.actor.add_constraint(constraint);
+
+        let signalId = this._systemBackground.connect('loaded', Lang.bind(this, function() {
+            this._systemBackground.disconnect(signalId);
+            this._systemBackground.actor.show();
+            global.stage.show();
+
+            this._prepareStartupAnimation();
+        }));
+    },
+
     // Startup Animations
     //
     // We have two different animations, depending on whether we're a greeter
@@ -602,32 +621,17 @@ const LayoutManager = new Lang.Class({
             global.window_group.set_clip(monitor.x, monitor.y, monitor.width, monitor.height);
         }
 
-        this._systemBackground = new Background.SystemBackground();
-        this._systemBackground.actor.hide();
-
-        global.stage.insert_child_below(this._systemBackground.actor, null);
-
-        let constraint = new Clutter.BindConstraint({ source: global.stage,
-                                                      coordinate: Clutter.BindCoordinate.ALL });
-        this._systemBackground.actor.add_constraint(constraint);
-
-        let signalId = this._systemBackground.connect('loaded', Lang.bind(this, function() {
-            this._systemBackground.disconnect(signalId);
-            this._systemBackground.actor.show();
-            global.stage.show();
-
-            this.emit('startup-prepared');
-
-            // We're mostly prepared for the startup animation
-            // now, but since a lot is going on asynchronously
-            // during startup, let's defer the startup animation
-            // until the event loop is uncontended and idle.
-            // This helps to prevent us from running the animation
-            // when the system is bogged down
-            GLib.idle_add(GLib.PRIORITY_LOW, Lang.bind(this, function() {
-                this._startupAnimation();
-                return false;
-            }));
+        this.emit('startup-prepared');
+
+        // We're mostly prepared for the startup animation
+        // now, but since a lot is going on asynchronously
+        // during startup, let's defer the startup animation
+        // until the event loop is uncontended and idle.
+        // This helps to prevent us from running the animation
+        // when the system is bogged down
+        GLib.idle_add(GLib.PRIORITY_LOW, Lang.bind(this, function() {
+            this._startupAnimation();
+            return false;
         }));
     },