5af37f140e
Add a display control that contains page numbers for the result pages and is shown in the expanded results view. All of the page selection and switching is handled by the GenericDisplay which exposes a displayControl actor, which is then displayed by the Sideshow.
234 lines
8.1 KiB
JavaScript
234 lines
8.1 KiB
JavaScript
/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
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const Clutter = imports.gi.Clutter;
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const Gio = imports.gi.Gio;
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const Gtk = imports.gi.Gtk;
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const Gdk = imports.gi.Gdk;
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const Shell = imports.gi.Shell;
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const Signals = imports.signals;
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const GenericDisplay = imports.ui.genericDisplay;
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// TODO - move this into GConf once we're not a plugin anymore
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// but have taken over metacity
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// This list is taken from GNOME Online popular applications
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// http://online.gnome.org/applications
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// but with nautilus removed (since it should already be running)
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// and evince, totem, and gnome-file-roller removed (since they're
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// usually started by opening documents, not by opening the app
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// directly)
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const DEFAULT_APPLICATIONS = [
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'mozilla-firefox.desktop',
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'gnome-terminal.desktop',
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'evolution.desktop',
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'gedit.desktop',
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'mozilla-thunderbird.desktop',
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'rhythmbox.desktop',
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'epiphany.desktop',
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'xchat.desktop',
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'openoffice.org-1.9-writer.desktop',
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'emacs.desktop',
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'gnome-system-monitor.desktop',
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'openoffice.org-1.9-calc.desktop',
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'eclipse.desktop',
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'openoffice.org-1.9-impress.desktop',
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'vncviewer.desktop'
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];
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/* This class represents a single display item containing information about an application.
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*
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* appInfo - GAppInfo object containing information about the application
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* availableWidth - total width available for the item
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*/
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function AppDisplayItem(appInfo, availableWidth) {
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this._init(appInfo, availableWidth);
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}
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AppDisplayItem.prototype = {
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__proto__: GenericDisplay.GenericDisplayItem.prototype,
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_init : function(appInfo, availableWidth) {
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GenericDisplay.GenericDisplayItem.prototype._init.call(this, availableWidth);
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this._appInfo = appInfo;
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let name = appInfo.get_name();
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let description = appInfo.get_description();
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let iconTheme = Gtk.IconTheme.get_default();
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let icon = new Clutter.Texture({ width: GenericDisplay.ITEM_DISPLAY_ICON_SIZE, height: GenericDisplay.ITEM_DISPLAY_ICON_SIZE});
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let gicon = appInfo.get_icon();
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let path = null;
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if (gicon != null) {
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let iconinfo = iconTheme.lookup_by_gicon(gicon, GenericDisplay.ITEM_DISPLAY_ICON_SIZE, Gtk.IconLookupFlags.NO_SVG);
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if (iconinfo)
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path = iconinfo.get_filename();
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}
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if (path) {
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try {
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icon.set_from_file(path);
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icon.x = GenericDisplay.ITEM_DISPLAY_PADDING;
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icon.y = GenericDisplay.ITEM_DISPLAY_PADDING;
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} catch (e) {
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// we can get an error here if the file path doesn't exist on the system
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log('Error loading AppDisplayItem icon ' + e);
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}
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}
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this._setItemInfo(name, description, icon);
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},
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//// Public methods ////
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// Returns the application info associated with this display item.
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getAppInfo : function () {
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return this._appInfo;
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},
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//// Public method overrides ////
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// Opens an application represented by this display item.
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launch : function() {
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let global = Shell.Global.get();
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let screen = global.screen;
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let display = screen.get_display();
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let timestamp = display.get_current_time();
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let context = new Gdk.AppLaunchContext();
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let icon = this._appInfo.get_icon();
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context.set_icon(icon);
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context.set_timestamp(timestamp);
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this._appInfo.launch([], context);
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}
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};
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/* This class represents a display containing a collection of application items.
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* The applications are sorted based on their popularity by default, and based on
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* their name if some search filter is applied.
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*
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* width - width available for the display
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* height - height available for the display
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*/
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function AppDisplay(width, height, numberOfColumns, columnGap) {
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this._init(width, height, numberOfColumns, columnGap);
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}
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AppDisplay.prototype = {
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__proto__: GenericDisplay.GenericDisplay.prototype,
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_init : function(width, height, numberOfColumns, columnGap) {
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GenericDisplay.GenericDisplay.prototype._init.call(this, width, height, numberOfColumns, columnGap);
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// map<itemId, array of category names>
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this._categories = {};
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let me = this;
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this._appMonitor = new Shell.AppMonitor();
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this._appsStale = true;
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this._appMonitor.connect('changed', function(mon) {
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me._appsStale = true;
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// We still need to determine what events other than search can trigger
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// a change in the set of applications that are being shown while the
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// user in in the overlay mode, however let's redisplay just in case.
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me._redisplay();
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});
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// Load the GAppInfos now so it doesn't slow down the first
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// transition into the overlay
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this._refreshCache();
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},
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//// Protected method overrides ////
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// Gets information about all applications by calling Gio.app_info_get_all().
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_refreshCache : function() {
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let me = this;
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if (!this._appsStale)
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return;
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this._allItems = {};
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this._categories = {};
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let apps = Gio.app_info_get_all();
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for (let i = 0; i < apps.length; i++) {
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let appInfo = apps[i];
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if (!appInfo.should_show())
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continue;
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let appId = appInfo.get_id();
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this._allItems[appId] = appInfo;
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// [] is returned if we could not get the categories or the list of categories was empty
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let categories = Shell.get_categories_for_desktop_file(appId);
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this._categories[appId] = categories;
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}
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this._appsStale = false;
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},
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// Sets the list of the displayed items based on the list of DEFAULT_APPLICATIONS.
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_setDefaultList : function() {
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this._matchedItems = [];
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for (let i = 0; i < DEFAULT_APPLICATIONS.length; i++) {
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let appId = DEFAULT_APPLICATIONS[i];
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let appInfo = this._allItems[appId];
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if (appInfo) {
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this._matchedItems.push(appId);
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}
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}
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this._displayMatchedItems(true);
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},
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// Compares items associated with the item ids based on the alphabetical order
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// of the item names.
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// Returns an integer value indicating the result of the comparison.
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_compareItems : function(itemIdA, itemIdB) {
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let appA = this._allItems[itemIdA];
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let appB = this._allItems[itemIdB];
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return appA.get_name().localeCompare(appB.get_name());
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},
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// Checks if the item info can be a match for the search string by checking
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// the name, description, execution command, and categories for the application.
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// Item info is expected to be GAppInfo.
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// Returns a boolean flag indicating if itemInfo is a match.
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_isInfoMatching : function(itemInfo, search) {
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if (search == null || search == '')
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return true;
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let name = itemInfo.get_name().toLowerCase();
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if (name.indexOf(search) >= 0)
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return true;
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let description = itemInfo.get_description();
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if (description) {
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description = description.toLowerCase();
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if (description.indexOf(search) >= 0)
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return true;
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}
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if (itemInfo.get_executable() == null) {
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log("Missing an executable for " + itemInfo.get_name());
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} else {
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let exec = itemInfo.get_executable().toLowerCase();
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if (exec.indexOf(search) >= 0)
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return true;
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}
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// we expect this._categories.hasOwnProperty(itemInfo.get_id()) to always be true here
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let categories = this._categories[itemInfo.get_id()];
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for (let i = 0; i < categories.length; i++) {
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let category = categories[i].toLowerCase();
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if (category.indexOf(search) >= 0)
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return true;
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}
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return false;
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},
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// Creates an AppDisplayItem based on itemInfo, which is expected be a GAppInfo object.
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_createDisplayItem: function(itemInfo) {
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return new AppDisplayItem(itemInfo, this._columnWidth);
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}
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};
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Signals.addSignalMethods(AppDisplay.prototype);
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