431 lines
15 KiB
JavaScript
431 lines
15 KiB
JavaScript
/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
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const Big = imports.gi.Big;
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const Clutter = imports.gi.Clutter;
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const Pango = imports.gi.Pango;
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const Gio = imports.gi.Gio;
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const Gtk = imports.gi.Gtk;
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const Shell = imports.gi.Shell;
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const Lang = imports.lang;
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const Signals = imports.signals;
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const AppInfo = imports.misc.appInfo;
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const GenericDisplay = imports.ui.genericDisplay;
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const ENTERED_MENU_COLOR = new Clutter.Color();
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ENTERED_MENU_COLOR.from_pixel(0x00ff0022);
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const MENU_ICON_SIZE = 24;
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const MENU_SPACING = 15;
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const MAX_ITEMS = 30;
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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 - AppInfo 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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this._setItemInfo(appInfo.name, appInfo.description,
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appInfo.getIcon(GenericDisplay.ITEM_DISPLAY_ICON_SIZE));
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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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this._appInfo.launch();
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},
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//// Protected method overrides ////
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// Ensures the preview icon is created.
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_ensurePreviewIconCreated : function() {
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if (!this._showPreview || this._previewIcon)
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return;
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let previewIconPath = this._appInfo.getIconPath(GenericDisplay.PREVIEW_ICON_SIZE);
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if (previewIconPath) {
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try {
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this._previewIcon = new Clutter.Texture({ width: GenericDisplay.PREVIEW_ICON_SIZE, height: GenericDisplay.PREVIEW_ICON_SIZE});
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this._previewIcon.set_from_file(previewIconPath);
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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 preview icon ' + e);
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}
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}
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}
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};
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const MENU_UNSELECTED = 0;
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const MENU_SELECTED = 1;
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const MENU_ENTERED = 2;
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function MenuItem(name, id, iconName) {
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this._init(name, id, iconName);
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}
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/**
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* MenuItem:
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* Shows the list of menus in the sidebar.
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*/
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MenuItem.prototype = {
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_init: function(name, id, iconName) {
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this.id = id;
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this.actor = new Big.Box({ orientation: Big.BoxOrientation.HORIZONTAL,
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spacing: 4,
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corner_radius: 4,
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padding_right: 4,
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reactive: true });
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this.actor.connect('button-press-event', Lang.bind(this, function (a, e) {
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this.setState(MENU_SELECTED);
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}));
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let iconTheme = Gtk.IconTheme.get_default();
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let pixbuf = null;
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this._icon = new Clutter.Texture({ width: MENU_ICON_SIZE,
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height: MENU_ICON_SIZE });
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// Wine manages not to have an icon
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try {
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pixbuf = iconTheme.load_icon(iconName, MENU_ICON_SIZE, 0 /* flags */);
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} catch (e) {
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pixbuf = iconTheme.load_icon('gtk-file', MENU_ICON_SIZE, 0);
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}
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if (pixbuf != null)
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Shell.clutter_texture_set_from_pixbuf(this._icon, pixbuf);
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this.actor.append(this._icon, 0);
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this._text = new Clutter.Text({ color: GenericDisplay.ITEM_DISPLAY_NAME_COLOR,
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font_name: "Sans 14px",
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ellipsize: Pango.EllipsizeMode.END,
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text: name });
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this.actor.append(this._text, Big.BoxPackFlags.EXPAND);
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let box = new Big.Box({ orientation: Big.BoxOrientation.HORIZONTAL,
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y_align: Big.BoxAlignment.CENTER
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});
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this._arrow = new Shell.Arrow({ surface_width: MENU_ICON_SIZE/2,
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surface_height: MENU_ICON_SIZE/2,
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direction: Gtk.ArrowType.RIGHT,
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opacity: 0
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});
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box.append(this._arrow, 0);
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this.actor.append(box, 0);
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},
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getState: function() {
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return this._state;
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},
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setState: function (state) {
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if (state == this._state)
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return;
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this._state = state;
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if (this._state == MENU_UNSELECTED) {
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this.actor.background_color = null;
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this._arrow.set_opacity(0);
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} else if (this._state == MENU_ENTERED) {
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this.actor.background_color = ENTERED_MENU_COLOR;
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this._arrow.set_opacity(0xFF/2);
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} else {
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this.actor.background_color = GenericDisplay.ITEM_DISPLAY_SELECTED_BACKGROUND_COLOR;
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this._arrow.set_opacity(0xFF);
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}
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this.emit('state-changed')
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}
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}
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Signals.addSignalMethods(MenuItem.prototype);
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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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this._menus = [];
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this._menuDisplays = [];
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// map<itemId, array of category names>
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this._appCategories = {};
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this._appMonitor = Shell.AppMonitor.get_default();
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this._appSystem = Shell.AppSystem.get_default();
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this._appsStale = true;
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this._appSystem.connect('changed', Lang.bind(this, function(appSys) {
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this._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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this._redisplay(false);
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this._redisplayMenus();
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}));
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this._appMonitor.connect('changed', Lang.bind(this, function(monitor) {
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this._appsStale = true;
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this._redisplay(false);
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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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this._focusInMenus = true;
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this._activeMenuIndex = -1;
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this._activeMenu = null;
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this._activeMenuApps = null;
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this._menuDisplay = new Big.Box({ orientation: Big.BoxOrientation.VERTICAL,
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spacing: MENU_SPACING
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});
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this._redisplayMenus();
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this.connect('expanded', Lang.bind(this, function (self) {
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this._filterReset();
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}));
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},
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moveRight: function() {
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if (this._expanded && this._focusInMenu) {
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this._focusInMenu = false;
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this._activeMenu.setState(MENU_ENTERED);
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this.selectFirstItem();
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}
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},
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moveLeft: function() {
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if (this._expanded && !this._focusInMenu) {
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this._activeMenu.setState(MENU_SELECTED);
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this.unsetSelected();
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this._focusInMenu = true;
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}
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},
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// Override genericDisplay.js
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getSideArea: function() {
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return this._menuDisplay;
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},
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selectUp: function() {
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if (!(this._expanded && this._focusInMenu))
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return GenericDisplay.GenericDisplay.prototype.selectUp.call(this);
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this._selectMenuIndex(this._activeMenuIndex - 1);
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return true;
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},
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selectDown: function() {
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if (!(this._expanded && this._focusInMenu))
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return GenericDisplay.GenericDisplay.prototype.selectDown.call(this);
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this._selectMenuIndex(this._activeMenuIndex+1);
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return true;
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},
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// Protected overrides
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_filterActive: function() {
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return !!this._search || this._activeMenuIndex >= 0;
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},
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_filterReset: function() {
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GenericDisplay.GenericDisplay.prototype._filterReset.call(this);
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if (this._activeMenu != null)
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this._activeMenu.setState(MENU_UNSELECTED);
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this._activeMenuIndex = -1;
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this._activeMenu = null;
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this._focusInMenu = true;
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},
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//// Private ////
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_emitStateChange: function() {
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this.emit('state-changed');
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},
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_selectMenuIndex: function(index) {
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if (index < 0 || index >= this._menus.length)
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return;
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this._menuDisplays[index].setState(MENU_SELECTED);
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},
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_redisplayMenus: function() {
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this._menuDisplay.remove_all();
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for (let i = 0; i < this._menus.length; i++) {
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let menu = this._menus[i];
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let display = new MenuItem(menu.name, menu.id, menu.icon);
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this._menuDisplays.push(display);
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let menuIndex = i;
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display.connect('state-changed', Lang.bind(this, function (display) {
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let activated = display.getState() != MENU_UNSELECTED;
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if (!activated && display == this._activeMenu) {
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this._activeMenuIndex = -1;
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this._activeMenu = null;
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} else if (activated) {
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if (display != this._activeMenu && this._activeMenu != null)
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this._activeMenu.setState(MENU_UNSELECTED);
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this._activeMenuIndex = menuIndex;
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this._activeMenu = display;
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this._activeMenuApps = this._appSystem.get_applications_for_menu(menu.id);
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}
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this._redisplay();
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}));
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this._menuDisplay.append(display.actor, 0);
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}
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},
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_addAppForId: function(appId) {
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let appInfo = AppInfo.getAppInfo(appId);
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if (appInfo != null) {
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this._addApp(appInfo);
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} else {
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log("appInfo for " + appId + " was not found.");
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}
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},
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_addApp: function(appInfo) {
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let appId = appInfo.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._appCategories[appId] = categories;
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},
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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._appCategories = {};
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this._menus = this._appSystem.get_menus();
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// Loop over the toplevel menu items, load the set of desktop file ids
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// associated with each one
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for (let i = 0; i < this._menus.length; i++) {
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let menu = this._menus[i];
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let menuApps = this._appSystem.get_applications_for_menu(menu.id);
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for (let j = 0; j < menuApps.length; j++) {
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let appId = menuApps[j];
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this._addAppForId(appId);
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}
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}
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// Now grab the desktop file ids for settings/preferences.
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// These show up in search, but not with the rest of apps.
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let settings = this._appSystem.get_all_settings();
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for (let i = 0; i < settings.length; i++) {
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let appId = settings[i];
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this._addAppForId(appId);
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}
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// Some applications, such as Evince, might not be in the menus,
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// but might be returned by the applications monitor as most used
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// applications, in which case we include them.
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let mostUsedAppInfos = AppInfo.getMostUsedApps(MAX_ITEMS);
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for (let i = 0; i < mostUsedAppInfos.length; i++) {
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let appInfo = mostUsedAppInfos[i];
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this._addApp(appInfo);
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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 most used apps.
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_setDefaultList : function() {
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let matchedInfos = AppInfo.getMostUsedApps(MAX_ITEMS);
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this._matchedItems = matchedInfos.map(function(info) { return info.appId; });
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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.name.localeCompare(appB.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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// Search takes precedence; not typically useful to search within a
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// menu
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if (this._activeMenu == null || search != "")
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return this._isInfoMatchingSearch(itemInfo, search);
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else
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return this._isInfoMatchingMenu(itemInfo, search);
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},
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_isInfoMatchingMenu : function(itemInfo, search) {
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let id = itemInfo.id;
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for (let i = 0; i < this._activeMenuApps.length; i++) {
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let activeId = this._activeMenuApps[i];
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if (activeId == id)
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return true;
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}
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return false;
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},
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_isInfoMatchingSearch: function(itemInfo, search) {
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if (search == null || search == '')
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return true;
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let name = itemInfo.name.toLowerCase();
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if (name.indexOf(search) >= 0)
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return true;
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let description = itemInfo.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.executable == null) {
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log("Missing an executable for " + itemInfo.name);
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} else {
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let exec = itemInfo.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._appCategories.hasOwnProperty(itemInfo.id) to always be true here
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let categories = this._appCategories[itemInfo.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 an AppInfo 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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