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altTab: Only create one settings instance per window switcher popup

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Every settings instance we create is a round-trip to the dconf
daemon, so we need to be careful of not creating them too haphazardly.

https://bugzilla.gnome.org/show_bug.cgi?id=707806
This commit is contained in:
Jasper St. Pierre 2013-09-09 16:53:44 -04:00
parent 15cfb9d1d9
commit 1edb9f7525
1 changed files with 12 additions and 9 deletions
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21
js/ui/altTab.js
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@ -355,10 +355,13 @@ const WindowSwitcherPopup = new Lang.Class({
Name: 'WindowSwitcherPopup',
Extends: SwitcherPopup.SwitcherPopup,
_init: function(items) {
this.parent(items);
this._settings = new Gio.Settings({ schema: 'org.gnome.shell.window-switcher' });
},
_getWindowList: function() {
let settings = new Gio.Settings({ schema: 'org.gnome.shell.window-switcher' });
let workspace = settings.get_boolean('current-workspace-only') ? global.screen.get_active_workspace()
: null;
let workspace = this._settings.get_boolean('current-workspace-only') ? global.screen.get_active_workspace() : null;
return global.display.get_tab_list(Meta.TabList.NORMAL, global.screen, workspace);
},
@ -368,7 +371,8 @@ const WindowSwitcherPopup = new Lang.Class({
if (windows.length == 0)
return false;
this._switcherList = new WindowList(windows);
let mode = this._settings.get_enum('app-icon-mode');
this._switcherList = new WindowList(windows, mode);
this._items = this._switcherList.icons;
return true;
@ -663,7 +667,7 @@ const ThumbnailList = new Lang.Class({
const WindowIcon = new Lang.Class({
Name: 'WindowIcon',
_init: function(window) {
_init: function(window, mode) {
this.window = window;
this.actor = new St.BoxLayout({ style_class: 'alt-tab-app',
@ -681,8 +685,7 @@ const WindowIcon = new Lang.Class({
this._icon.destroy_all_children();
let settings = new Gio.Settings({ schema: 'org.gnome.shell.window-switcher' });
switch (settings.get_enum('app-icon-mode')) {
switch (mode) {
case AppIconMode.THUMBNAIL_ONLY:
size = WINDOW_PREVIEW_SIZE;
this._icon.add_actor(_createWindowClone(mutterWindow, WINDOW_PREVIEW_SIZE));
@ -720,7 +723,7 @@ const WindowList = new Lang.Class({
Name: 'WindowList',
Extends: SwitcherPopup.SwitcherList,
_init : function(windows) {
_init : function(windows, mode) {
this.parent(true);
this._label = new St.Label({ x_align: Clutter.ActorAlign.CENTER,
@ -732,7 +735,7 @@ const WindowList = new Lang.Class({
for (let i = 0; i < windows.length; i++) {
let win = windows[i];
let icon = new WindowIcon(win);
let icon = new WindowIcon(win, mode);
this.addItem(icon.actor, icon.label);
this.icons.push(icon);