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workspace: Position windows only when needed

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Right now, when entering the overview, we compute the window slots about
four or five times, from scratch each time. Move to a queued system where
extraneous calls to positionWindows don't matter.

https://bugzilla.gnome.org/show_bug.cgi?id=582650
This commit is contained in:
Jasper St. Pierre 2012-08-08 14:16:28 -03:00
parent 4ff0697ee7
commit 3776c50986
1 changed files with 27 additions and 9 deletions
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36
js/ui/workspace.js
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@ -726,6 +726,9 @@ const Workspace = new Lang.Class({
this._repositionWindowsId = 0;
this.leavingOverview = false;
this._positionWindowsFlags = 0;
this._positionWindowsId = 0;
},
setGeometry: function(x, y, width, height) {
@ -734,15 +737,13 @@ const Workspace = new Lang.Class({
this._width = width;
this._height = height;
// This is sometimes called during allocation, so we do this later
Meta.later_add(Meta.LaterType.BEFORE_REDRAW, Lang.bind(this,
function () {
this._dropRect.set_position(x, y);
this._dropRect.set_size(width, height);
this.positionWindows(WindowPositionFlags.ANIMATE);
return false;
}));
Meta.later_add(Meta.LaterType.BEFORE_REDRAW, Lang.bind(this, function() {
this._dropRect.set_position(x, y);
this._dropRect.set_size(width, height);
return false;
}));
this.positionWindows(WindowPositionFlags.ANIMATE);
},
_lookupIndex: function (metaWindow) {
@ -1003,7 +1004,21 @@ const Workspace = new Lang.Class({
* INITIAL - this is the initial positioning of the windows.
* ANIMATE - Indicates that we need animate changing position.
*/
positionWindows : function(flags) {
positionWindows: function(flags) {
this._positionWindowsFlags |= flags;
if (this._positionWindowsId > 0)
return;
this._positionWindowsId = Meta.later_add(Meta.LaterType.BEFORE_REDRAW, Lang.bind(this, function() {
this._realPositionWindows(this._positionWindowsFlags);
this._positionWindowsFlags = 0;
this._positionWindowsId = 0;
return false;
}));
},
_realPositionWindows : function(flags) {
if (this._repositionWindowsId > 0) {
Mainloop.source_remove(this._repositionWindowsId);
this._repositionWindowsId = 0;
@ -1372,6 +1387,9 @@ const Workspace = new Lang.Class({
if (this._repositionWindowsId > 0)
Mainloop.source_remove(this._repositionWindowsId);
if (this._positionWindowsId > 0)
Meta.later_remove(this._positionWindowsId);
// Usually, the windows will be destroyed automatically with
// their parent (this.actor), but we might have a zoomed window
// which has been reparented to the stage - _windows[0] holds