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workspacesDisplay: Connect to 'notify::n-workspaces' early

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Currently we only connect to the 'notify::n-workspaces' signal the
first time the overview is shown, which means we will miss any
changes to the workspace layout in the meanwhile.
In particular, the decision of whether the workspace switcher should be
shown is taken before the dynamic workspace handling takes over, and is
thus based entirely on the value of the num-workspaces user preference
rather than the actual number of workspaces.
Just connect the signal in _init() (with the nice side-effect to make it
explicit that the signal handler won't ever be disconnected).

https://bugzilla.gnome.org/show_bug.cgi?id=673198
This commit is contained in:
Florian Müllner 2012-03-28 15:25:33 +02:00
parent 94493cde35
commit 76005f5adf
1 changed files with 7 additions and 11 deletions
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18
js/ui/workspacesView.js
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@ -529,9 +529,11 @@ const WorkspacesDisplay = new Lang.Class({
this._updateAlwaysZoom();
}));
global.screen.connect('notify::n-workspaces',
Lang.bind(this, this._workspacesChanged));
this._switchWorkspaceNotifyId = 0;
this._nWorkspacesChangedId = 0;
this._itemDragBeginId = 0;
this._itemDragCancelledId = 0;
this._itemDragEndId = 0;
@ -570,9 +572,6 @@ const WorkspacesDisplay = new Lang.Class({
global.screen.connect('restacked',
Lang.bind(this, this._onRestacked));
if (this._nWorkspacesChangedId == 0)
this._nWorkspacesChangedId = global.screen.connect('notify::n-workspaces',
Lang.bind(this, this._workspacesChanged));
if (this._itemDragBeginId == 0)
this._itemDragBeginId = Main.overview.connect('item-drag-begin',
Lang.bind(this, this._dragBegin));
@ -925,19 +924,16 @@ const WorkspacesDisplay = new Lang.Class({
},
_workspacesChanged: function() {
let oldNumWorkspaces = this._workspaces[0].length;
let newNumWorkspaces = global.screen.n_workspaces;
let active = global.screen.get_active_workspace_index();
if (oldNumWorkspaces == newNumWorkspaces)
return;
this._updateAlwaysZoom();
this._updateZoom();
if (this._workspacesViews == null)
return;
let oldNumWorkspaces = this._workspaces[0].length;
let newNumWorkspaces = global.screen.n_workspaces;
let active = global.screen.get_active_workspace_index();
let lostWorkspaces = [];
if (newNumWorkspaces > oldNumWorkspaces) {
let monitors = Main.layoutManager.monitors;