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workspace: Iterate windowSlots directly when allocating

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We can save a little bit of time in this loop by iterating directly
over the windowSlots array instead of iterating through children and
then performing a search for the windowSlot. This saves more time and we
only spend 2.2 ms instead of 2.3 ms in vfunc_allocate() now.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1743>
This commit is contained in:
Jonas Dreßler 2021-02-25 11:50:44 +01:00 committed by Marge Bot
parent 04c781674c
commit e75f3a8aed
1 changed files with 3 additions and 10 deletions
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13
js/ui/workspace.js
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@ -626,19 +626,12 @@ var WorkspaceLayout = GObject.registerClass({
const inSessionTransition =
this._overviewAdjustment.value <= ControlsState.WINDOW_PICKER;
for (const child of container) {
const nSlots = this._windowSlots.length;
for (let i = 0; i < nSlots; i++) {
const [x, y, width, height, child] = this._windowSlots[i];
if (!child.visible)
continue;
// The fifth element in the slot array is the WindowPreview
const index = this._windowSlots.findIndex(s => s[4] === child);
if (index === -1) {
log('Couldn\'t find child %s in window slots'.format(child));
child.allocate(childBox);
continue;
}
const [x, y, width, height] = this._windowSlots[index];
const windowInfo = this._windows.get(child);
if (windowInfo.metaWindow.showing_on_its_workspace()) {