gnome-shell/js/misc/appInfo.js
Marina Zhurakhinskaya db52e024e8 Use a separate icon image as a drag actor instead of using the clone of the icon
Clutter no longer allows using a clone of an actor that is not a part of
the scene graph. This is what used to happen when we created a clone for
the icon of the item that was being dragged, and then closed the More panes
with the original item, removing the icon from the scene graph. This was
also when happened when the user hit Esc while dragging, which prompted the
overlay to close, removing the original icon from the scene graph.

Rename getIcon() methods to createIcon() to better reflect on the fact that
a new icon is created each time the method is called (we do use cache in
some cases).

Remove a stray log message in overlay.js

Fixes http://bugzilla.gnome.org/show_bug.cgi?id=585490
and http://bugzilla.gnome.org/show_bug.cgi?id=585489
2009-06-30 16:42:00 -04:00

135 lines
3.6 KiB
JavaScript

/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
const Clutter = imports.gi.Clutter;
const Gio = imports.gi.Gio;
const Gtk = imports.gi.Gtk;
const Shell = imports.gi.Shell;
const Main = imports.ui.main;
function AppInfo(appId) {
this._init(appId);
}
AppInfo.prototype = {
_init : function(appId) {
this.appId = appId;
this._gAppInfo = Gio.DesktopAppInfo.new(appId);
if (!this._gAppInfo) {
throw new Error('Unknown appId ' + appId);
}
this.id = this._gAppInfo.get_id();
this.name = this._gAppInfo.get_name();
this.description = this._gAppInfo.get_description();
this.executable = this._gAppInfo.get_executable();
this._gicon = this._gAppInfo.get_icon();
},
createIcon : function(size) {
if (this._gicon)
return Shell.TextureCache.get_default().load_gicon(this._gicon, size);
else
return new Clutter.Texture({ width: size, height: size });
},
getIconPath : function(size) {
if (this._gicon) {
let iconTheme = Gtk.IconTheme.get_default();
let previewIconInfo = iconTheme.lookup_by_gicon(this._gicon, size, 0);
if (previewIconInfo)
return previewIconInfo.get_filename();
}
return null;
},
launch : function() {
this._gAppInfo.launch([], Main.createAppLaunchContext());
}
};
var _infos = {};
// getAppInfo:
// @appId: an appId
//
// Gets an #AppInfo for @appId. This is preferable to calling
// new AppInfo() directly, because it caches #AppInfos.
//
// Return value: the new or cached #AppInfo, or %null if @appId
// doesn't point to a valid .desktop file
function getAppInfo(appId) {
let info = _infos[appId];
if (info === undefined) {
try {
info = _infos[appId] = new AppInfo(appId);
} catch (e) {
info = _infos[appId] = null;
}
}
return info;
}
// getTopApps:
// @count: maximum number of apps to retrieve
//
// Gets a list of #AppInfos for the @count most-frequently-used
// applications, with explicitly-chosen favorites first.
//
// Return value: the list of #AppInfo
function getTopApps(count) {
let appMonitor = Shell.AppMonitor.get_default();
let matches = [], alreadyAdded = {};
let favs = getFavorites();
for (let i = 0; i < favs.length && favs.length <= count; i++) {
let appId = favs[i].appId;
if (alreadyAdded[appId])
continue;
alreadyAdded[appId] = true;
matches.push(favs[i]);
}
// Ask for more apps than we need, since the list of recently used
// apps might contain an app we don't have a desktop file for
let apps = appMonitor.get_most_used_apps (0, Math.round(count * 1.5));
for (let i = 0; i < apps.length && matches.length <= count; i++) {
let appId = apps[i] + ".desktop";
if (alreadyAdded[appId])
continue;
alreadyAdded[appId] = true;
let appInfo = getAppInfo(appId);
if (appInfo) {
matches.push(appInfo);
}
}
return matches;
}
function _idListToInfos(ids) {
let infos = [];
for (let i = 0; i < ids.length; i++) {
let display = getAppInfo(ids[i]);
if (display == null)
continue;
infos.push(display);
}
return infos;
}
function getFavorites() {
let system = Shell.AppSystem.get_default();
return _idListToInfos(system.get_favorites());
}
function getRunning() {
let monitor = Shell.AppMonitor.get_default();
return _idListToInfos(monitor.get_running_app_ids());
}