Split appDisplay and docDisplay into "model" and "view" parts

This lets us share the recent-app-tracking, recent-file-tracking, and icon-drawing code between the overlay and the sidebar, without the sidebar having to poke into AppDisplayItem and DocDisplayItem's guts.
2009-06-16 12:20:12 -04:00
parent 4314c6e57f
commit a3d35af444
8 changed files with 405 additions and 252 deletions
--- a/js/misc/appInfo.js
+++ b/js/misc/appInfo.js
@@ -0,0 +1,133 @@
+/* -*- 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;
+
+// TODO - move this into GConf once we're not a plugin anymore
+// but have taken over metacity
+// This list is taken from GNOME Online popular applications
+// http://online.gnome.org/applications
+// but with nautilus removed (since it should already be running)
+// and evince, totem, and gnome-file-roller removed (since they're
+// usually started by opening documents, not by opening the app
+// directly)
+const DEFAULT_APPLICATIONS = [
+    'mozilla-firefox.desktop',
+    'gnome-terminal.desktop',
+    'evolution.desktop',
+    'gedit.desktop',
+    'mozilla-thunderbird.desktop',
+    'rhythmbox.desktop',
+    'epiphany.desktop',
+    'xchat.desktop',
+    'openoffice.org-1.9-writer.desktop',
+    'emacs.desktop',
+    'gnome-system-monitor.desktop',
+    'openoffice.org-1.9-calc.desktop',
+    'eclipse.desktop',
+    'openoffice.org-1.9-impress.desktop',
+    'vncviewer.desktop'
+];
+
+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.name = this._gAppInfo.get_name();
+        this.description = this._gAppInfo.get_description();
+
+        this._gicon = this._gAppInfo.get_icon();
+    },
+
+    getIcon : 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;
+}
+
+// getMostUsedApps:
+// @count: maximum number of apps to retrieve
+//
+// Gets a list of #AppInfos for the @count most-frequently-used
+// applications
+//
+// Return value: the list of #AppInfo
+function getMostUsedApps(count) {
+    let appMonitor = new Shell.AppMonitor();
+
+    // 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));
+    let matches = [], alreadyAdded = {};
+
+    for (let i = 0; i < apps.length && matches.length <= count; i++) {
+        let appId = apps[i] + ".desktop";
+        let appInfo = getAppInfo(appId);
+        if (appInfo) {
+            matches.push(appInfo);
+            alreadyAdded[appId] = true;
+        }
+    }
+
+    // Fill the list with default applications it's not full yet
+    for (let i = 0; i < DEFAULT_APPLICATIONS.length && matches.length <= count; i++) {
+        let appId = DEFAULT_APPLICATIONS[i];
+        if (alreadyAdded[appId])
+            continue;
+
+        let appInfo = getAppInfo(appId);
+        if (appInfo)
+            matches.push(appInfo);
+    }
+
+    return matches;
+}