MessageTray: don't list the sources all the time

The point of a hash table is that you don't need to list all the
elements. To avoid that, keep a "clearableCount" in MessageTray,
which can be used by the message tray menu to show and hide the
clear item, and that is updated in constant time when sources
are added or removed.

https://bugzilla.gnome.org/show_bug.cgi?id=700194
This commit is contained in:
Giovanni Campagna 2013-05-12 20:13:43 +02:00
parent b0dc841e00
commit fa44dc7d16

View File

@ -1530,11 +1530,7 @@ const MessageTrayContextMenu = new Lang.Class({
},
_updateClearSensitivity: function() {
let sources = this._tray.getSources();
sources = sources.filter(function(source) {
return !source.trayIcon && !source.isChat && !source.resident;
});
this._clearItem.setSensitive(sources.length > 0);
this._clearItem.setSensitive(this._tray.clearableCount > 0);
},
setPosition: function(x, y) {
@ -1660,6 +1656,8 @@ const MessageTray = new Lang.Class({
this._desktopClone = null;
this._inCtrlAltTab = false;
this.clearableCount = 0;
this._lightbox = new Lightbox.Lightbox(global.overlay_group,
{ inhibitEvents: true,
fadeInTime: ANIMATION_TIME,
@ -1896,6 +1894,9 @@ const MessageTray = new Lang.Class({
this._summary.insert_child_at_index(summaryItem.actor, this._chatSummaryItemsCount);
}
if (!source.trayIcon && !source.isChat && !source.resident)
this.clearableCount++;
this._sources.set(source, obj);
obj.notifyId = source.connect('notify', Lang.bind(this, this._onNotify));
@ -1937,6 +1938,9 @@ const MessageTray = new Lang.Class({
if (source.isChat)
this._chatSummaryItemsCount--;
if (!source.trayIcon && !source.isChat && !source.resident)
this.clearableCount--;
source.disconnect(obj.notifyId);
source.disconnect(obj.destroyId);
source.disconnect(obj.mutedChangedId);