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Hide the group containing the windows while overlay is up

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When we are animating the overlay, we don't want to be continually
redrawing the (obscured) window actors.

src/shell-global.c: Add 'window-group' property to expose the group
  holding the window actors.
js/ui/overlay.js: Hide the window group while the overlay is up.

svn path=/trunk/; revision=39
This commit is contained in:
Owen Taylor
2008-11-08 19:33:33 +00:00
parent ffed9df171
commit f546d92033
3 changed files with 29 additions and 1 deletions
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11
js/ui/overlay.js
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@ -103,13 +103,24 @@ Overlay.prototype = {
window_index++;
}
// All the the actors in the window group are completely obscured,
// hiding the group holding them while the overlay is displayed greatly
// increases performance of the overlay especially when there are many
// windows visible.
//
// If we switched to displaying the actors in the overlay rather than
// clones of them, this would obviously no longer be necessary.
global.window_group.hide()
this._group.show();
}
},
hide : function() {
if (this.visible) {
let global = Shell.global_get();
this.visible = false;
global.window_group.show()
this._group.hide();
for (let i = 0; i < this._window_clones.length; i++) {