gnome-shell/js/ui/appDisplay.js

668 lines
22 KiB
JavaScript

// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const Clutter = imports.gi.Clutter;
const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const Gtk = imports.gi.Gtk;
const GMenu = imports.gi.GMenu;
const Shell = imports.gi.Shell;
const Lang = imports.lang;
const Signals = imports.signals;
const Meta = imports.gi.Meta;
const St = imports.gi.St;
const Mainloop = imports.mainloop;
const Atk = imports.gi.Atk;
const AppFavorites = imports.ui.appFavorites;
const DND = imports.ui.dnd;
const IconGrid = imports.ui.iconGrid;
const Main = imports.ui.main;
const Overview = imports.ui.overview;
const PopupMenu = imports.ui.popupMenu;
const Tweener = imports.ui.tweener;
const Workspace = imports.ui.workspace;
const Params = imports.misc.params;
const Util = imports.misc.util;
const MAX_APPLICATION_WORK_MILLIS = 75;
const MENU_POPUP_TIMEOUT = 600;
const SCROLL_TIME = 0.1;
const AlphabeticalView = new Lang.Class({
Name: 'AlphabeticalView',
_init: function() {
this._grid = new IconGrid.IconGrid({ xAlign: St.Align.START });
this._appSystem = Shell.AppSystem.get_default();
this._pendingAppLaterId = 0;
this._appIcons = {}; // desktop file id
this._allApps = [];
let box = new St.BoxLayout({ vertical: true });
box.add(this._grid.actor, { y_align: St.Align.START, expand: true });
this.actor = new St.ScrollView({ x_fill: true,
y_fill: false,
y_align: St.Align.START,
style_class: 'vfade' });
this.actor.add_actor(box);
this.actor.set_policy(Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC);
let action = new Clutter.PanAction({ interpolate: true });
action.connect('pan', Lang.bind(this, this._onPan));
this.actor.add_action(action);
},
_onPan: function(action) {
let [dist, dx, dy] = action.get_motion_delta(0);
let adjustment = this.actor.vscroll.adjustment;
adjustment.value -= (dy / this.actor.height) * adjustment.page_size;
return false;
},
removeAll: function() {
this._grid.removeAll();
this._appIcons = {};
this._allApps = [];
},
addApp: function(app) {
var id = app.get_id();
if (this._appIcons[id] !== undefined)
return;
let appIcon = new AppWellIcon(app);
let pos = Util.insertSorted(this._allApps, app, function(a, b) {
return a.compare_by_name(b);
});
this._grid.addItem(appIcon.actor, pos);
appIcon.actor.connect('key-focus-in', Lang.bind(this, this._ensureIconVisible));
this._appIcons[id] = appIcon;
},
_ensureIconVisible: function(icon) {
let adjustment = this.actor.vscroll.adjustment;
let [value, lower, upper, stepIncrement, pageIncrement, pageSize] = adjustment.get_values();
let offset = 0;
let vfade = this.actor.get_effect("vfade");
if (vfade)
offset = vfade.fade_offset;
// If this gets called as part of a right-click, the actor
// will be needs_allocation, and so "icon.y" would return 0
let box = icon.get_allocation_box();
if (box.y1 < value + offset)
value = Math.max(0, box.y1 - offset);
else if (box.y2 > value + pageSize - offset)
value = Math.min(upper, box.y2 + offset - pageSize);
else
return;
Tweener.addTween(adjustment,
{ value: value,
time: SCROLL_TIME,
transition: 'easeOutQuad' });
},
setVisibleApps: function(apps) {
if (apps == null) { // null implies "all"
for (var id in this._appIcons) {
var icon = this._appIcons[id];
icon.actor.visible = true;
}
} else {
// Set everything to not-visible, then set to visible what we should see
for (var id in this._appIcons) {
var icon = this._appIcons[id];
icon.actor.visible = false;
}
for (var i = 0; i < apps.length; i++) {
var app = apps[i];
var id = app.get_id();
var icon = this._appIcons[id];
icon.actor.visible = true;
}
}
}
});
const ViewByCategories = new Lang.Class({
Name: 'ViewByCategories',
_init: function() {
this._appSystem = Shell.AppSystem.get_default();
this.actor = new St.BoxLayout({ style_class: 'all-app' });
this.actor._delegate = this;
this._view = new AlphabeticalView();
// categories can be -1 (the All view) or 0...n-1, where n
// is the number of sections
// -2 is a flag to indicate that nothing is selected
// (used only before the actor is mapped the first time)
this._currentCategory = -2;
this._categories = [];
this._categoryBox = new St.BoxLayout({ vertical: true,
reactive: true,
accessible_role: Atk.Role.LIST });
this._categoryScroll = new St.ScrollView({ x_fill: false,
y_fill: false,
style_class: 'vfade' });
this._categoryScroll.add_actor(this._categoryBox);
this._categoryScroll.set_policy(Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC);
this.actor.add(this._view.actor, { expand: true, x_fill: true, y_fill: true });
this.actor.add(this._categoryScroll, { expand: false, y_fill: false, y_align: St.Align.START });
// Always select the "All" filter when switching to the app view
this.actor.connect('notify::mapped', Lang.bind(this,
function() {
if (this.actor.mapped && this._allCategoryButton)
this._selectCategory(-1);
}));
// We need a dummy actor to catch the keyboard focus if the
// user Ctrl-Alt-Tabs here before the deferred work creates
// our real contents
this._focusDummy = new St.Bin({ can_focus: true });
this.actor.add(this._focusDummy);
},
_selectCategory: function(num) {
if (this._currentCategory == num) // nothing to do
return;
this._currentCategory = num;
if (num != -1) {
var category = this._categories[num];
this._allCategoryButton.remove_style_pseudo_class('selected');
this._view.setVisibleApps(category.apps);
} else {
this._allCategoryButton.add_style_pseudo_class('selected');
this._view.setVisibleApps(null);
}
for (var i = 0; i < this._categories.length; i++) {
if (i == num)
this._categories[i].button.add_style_pseudo_class('selected');
else
this._categories[i].button.remove_style_pseudo_class('selected');
}
},
// Recursively load a GMenuTreeDirectory; we could put this in ShellAppSystem too
_loadCategory: function(dir, appList) {
var iter = dir.iter();
var nextType;
while ((nextType = iter.next()) != GMenu.TreeItemType.INVALID) {
if (nextType == GMenu.TreeItemType.ENTRY) {
var entry = iter.get_entry();
var app = this._appSystem.lookup_app_by_tree_entry(entry);
if (!entry.get_app_info().get_nodisplay()) {
this._view.addApp(app);
appList.push(app);
}
} else if (nextType == GMenu.TreeItemType.DIRECTORY) {
var itemDir = iter.get_directory();
if (!itemDir.get_is_nodisplay())
this._loadCategory(itemDir, appList);
}
}
},
_addCategory: function(name, index, dir) {
let apps;
if (dir != null) {
apps = [];
this._loadCategory(dir, apps);
if (apps.length == 0)
return false;
}
let button = new St.Button({ label: GLib.markup_escape_text (name, -1),
style_class: 'app-filter',
x_align: St.Align.START,
can_focus: true ,
accessible_role: Atk.Role.LIST_ITEM });
button.connect('clicked', Lang.bind(this, function() {
this._selectCategory(index);
}));
if (dir == null) {
this._allCategoryButton = button;
} else {
this._categories.push({ apps: apps,
name: name,
button: button });
}
this._categoryBox.add(button, { expand: true, x_fill: true, y_fill: false });
return true;
},
_removeAll: function() {
this._view.removeAll();
this._categories = [];
this._categoryBox.destroy_all_children();
},
refresh: function() {
this._removeAll();
/* Translators: Filter to display all applications */
this._addCategory(_("All"), -1, null);
var tree = this._appSystem.get_tree();
var root = tree.get_root_directory();
var iter = root.iter();
var nextType;
var i = 0;
while ((nextType = iter.next()) != GMenu.TreeItemType.INVALID) {
if (nextType == GMenu.TreeItemType.DIRECTORY) {
var dir = iter.get_directory();
if (dir.get_is_nodisplay())
continue;
if (this._addCategory(dir.get_name(), i, dir))
i++;
}
}
this._selectCategory(-1);
if (this._focusDummy) {
let focused = this._focusDummy.has_key_focus();
this._focusDummy.destroy();
this._focusDummy = null;
if (focused)
this.actor.navigate_focus(null, Gtk.DirectionType.TAB_FORWARD, false);
}
}
});
/* This class represents a display containing a collection of application items.
* The applications are sorted based on their name.
*/
const AllAppDisplay = new Lang.Class({
Name: 'AllAppDisplay',
_init: function() {
this._appSystem = Shell.AppSystem.get_default();
this._appSystem.connect('installed-changed', Lang.bind(this, function() {
Main.queueDeferredWork(this._workId);
}));
this._appView = new ViewByCategories();
this.actor = new St.Bin({ child: this._appView.actor, x_fill: true, y_fill: true });
this._workId = Main.initializeDeferredWork(this.actor, Lang.bind(this, this._redisplay));
},
_redisplay: function() {
this._appView.refresh();
}
});
const AppSearchProvider = new Lang.Class({
Name: 'AppSearchProvider',
_init: function() {
this._appSys = Shell.AppSystem.get_default();
this.id = 'applications';
},
getResultMetas: function(apps, callback) {
let metas = [];
for (let i = 0; i < apps.length; i++) {
let app = apps[i];
metas.push({ 'id': app,
'name': app.get_name(),
'createIcon': function(size) {
return app.create_icon_texture(size);
}
});
}
callback(metas);
},
getInitialResultSet: function(terms) {
this.searchSystem.pushResults(this, this._appSys.initial_search(terms));
},
getSubsearchResultSet: function(previousResults, terms) {
this.searchSystem.pushResults(this, this._appSys.subsearch(previousResults, terms));
},
activateResult: function(app) {
let event = Clutter.get_current_event();
let modifiers = event ? event.get_state() : 0;
let openNewWindow = modifiers & Clutter.ModifierType.CONTROL_MASK;
if (openNewWindow)
app.open_new_window(-1);
else
app.activate();
},
dragActivateResult: function(id, params) {
params = Params.parse(params, { workspace: -1,
timestamp: 0 });
let app = this._appSys.lookup_app(id);
app.open_new_window(workspace);
},
createResultActor: function (resultMeta, terms) {
let app = resultMeta['id'];
let icon = new AppWellIcon(app);
return icon.actor;
}
});
const AppIcon = new Lang.Class({
Name: 'AppIcon',
Extends: IconGrid.BaseIcon,
_init : function(app, params) {
this.app = app;
let label = this.app.get_name();
this.parent(label, params);
},
createIcon: function(iconSize) {
return this.app.create_icon_texture(iconSize);
}
});
const AppWellIcon = new Lang.Class({
Name: 'AppWellIcon',
_init : function(app, iconParams) {
this.app = app;
this.actor = new St.Button({ style_class: 'app-well-app',
reactive: true,
button_mask: St.ButtonMask.ONE | St.ButtonMask.TWO,
can_focus: true,
x_fill: true,
y_fill: true });
this.actor._delegate = this;
this.icon = new AppIcon(app, iconParams);
this.actor.set_child(this.icon.actor);
this.actor.label_actor = this.icon.label;
this.actor.connect('button-press-event', Lang.bind(this, this._onButtonPress));
this.actor.connect('clicked', Lang.bind(this, this._onClicked));
this.actor.connect('popup-menu', Lang.bind(this, this._onKeyboardPopupMenu));
this._menu = null;
this._menuManager = new PopupMenu.PopupMenuManager(this);
this._draggable = DND.makeDraggable(this.actor);
this._draggable.connect('drag-begin', Lang.bind(this,
function () {
this._removeMenuTimeout();
Main.overview.beginItemDrag(this);
}));
this._draggable.connect('drag-cancelled', Lang.bind(this,
function () {
Main.overview.cancelledItemDrag(this);
}));
this._draggable.connect('drag-end', Lang.bind(this,
function () {
Main.overview.endItemDrag(this);
}));
this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
this._menuTimeoutId = 0;
this._stateChangedId = this.app.connect('notify::state',
Lang.bind(this,
this._onStateChanged));
this._onStateChanged();
},
_onDestroy: function() {
if (this._stateChangedId > 0)
this.app.disconnect(this._stateChangedId);
this._stateChangedId = 0;
this._removeMenuTimeout();
},
_removeMenuTimeout: function() {
if (this._menuTimeoutId > 0) {
Mainloop.source_remove(this._menuTimeoutId);
this._menuTimeoutId = 0;
}
},
_onStateChanged: function() {
if (this.app.state != Shell.AppState.STOPPED)
this.actor.add_style_class_name('running');
else
this.actor.remove_style_class_name('running');
},
_onButtonPress: function(actor, event) {
let button = event.get_button();
if (button == 1) {
this._removeMenuTimeout();
this._menuTimeoutId = Mainloop.timeout_add(MENU_POPUP_TIMEOUT,
Lang.bind(this, function() {
this.popupMenu();
}));
} else if (button == 3) {
this.popupMenu();
return true;
}
return false;
},
_onClicked: function(actor, button) {
this._removeMenuTimeout();
if (button == 1) {
this._onActivate(Clutter.get_current_event());
} else if (button == 2) {
// Last workspace is always empty
let launchWorkspace = global.screen.get_workspace_by_index(global.screen.n_workspaces - 1);
launchWorkspace.activate(global.get_current_time());
this.emit('launching');
this.app.open_new_window(-1);
Main.overview.hide();
}
return false;
},
_onKeyboardPopupMenu: function() {
this.popupMenu();
this._menu.actor.navigate_focus(null, Gtk.DirectionType.TAB_FORWARD, false);
},
getId: function() {
return this.app.get_id();
},
popupMenu: function() {
this._removeMenuTimeout();
this.actor.fake_release();
if (!this._menu) {
this._menu = new AppIconMenu(this);
this._menu.connect('activate-window', Lang.bind(this, function (menu, window) {
this.activateWindow(window);
}));
this._menu.connect('open-state-changed', Lang.bind(this, function (menu, isPoppedUp) {
if (!isPoppedUp)
this._onMenuPoppedDown();
}));
Main.overview.connect('hiding', Lang.bind(this, function () { this._menu.close(); }));
this._menuManager.addMenu(this._menu);
}
this.emit('menu-state-changed', true);
this.actor.set_hover(true);
this._menu.popup();
this._menuManager.ignoreRelease();
return false;
},
activateWindow: function(metaWindow) {
if (metaWindow) {
Main.activateWindow(metaWindow);
} else {
Main.overview.hide();
}
},
_onMenuPoppedDown: function() {
this.actor.sync_hover();
this.emit('menu-state-changed', false);
},
_onActivate: function (event) {
this.emit('launching');
let modifiers = event.get_state();
if (modifiers & Clutter.ModifierType.CONTROL_MASK
&& this.app.state == Shell.AppState.RUNNING) {
this.app.open_new_window(-1);
} else {
this.app.activate();
}
Main.overview.hide();
},
shellWorkspaceLaunch : function(params) {
params = Params.parse(params, { workspace: -1,
timestamp: 0 });
this.app.open_new_window(params.workspace);
},
getDragActor: function() {
return this.app.create_icon_texture(Main.overview.dashIconSize);
},
// Returns the original actor that should align with the actor
// we show as the item is being dragged.
getDragActorSource: function() {
return this.icon.icon;
}
});
Signals.addSignalMethods(AppWellIcon.prototype);
const AppIconMenu = new Lang.Class({
Name: 'AppIconMenu',
Extends: PopupMenu.PopupMenu,
_init: function(source) {
let side = St.Side.LEFT;
if (Clutter.get_default_text_direction() == Clutter.TextDirection.RTL)
side = St.Side.RIGHT;
this.parent(source.actor, 0.5, side);
// We want to keep the item hovered while the menu is up
this.blockSourceEvents = true;
this._source = source;
this.connect('activate', Lang.bind(this, this._onActivate));
this.actor.add_style_class_name('app-well-menu');
// Chain our visibility and lifecycle to that of the source
source.actor.connect('notify::mapped', Lang.bind(this, function () {
if (!source.actor.mapped)
this.close();
}));
source.actor.connect('destroy', Lang.bind(this, function () { this.actor.destroy(); }));
Main.uiGroup.add_actor(this.actor);
},
_redisplay: function() {
this.removeAll();
let windows = this._source.app.get_windows();
// Display the app windows menu items and the separator between windows
// of the current desktop and other windows.
let activeWorkspace = global.screen.get_active_workspace();
let separatorShown = windows.length > 0 && windows[0].get_workspace() != activeWorkspace;
for (let i = 0; i < windows.length; i++) {
if (!separatorShown && windows[i].get_workspace() != activeWorkspace) {
this._appendSeparator();
separatorShown = true;
}
let item = this._appendMenuItem(windows[i].title);
item._window = windows[i];
}
if (!this._source.app.is_window_backed()) {
if (windows.length > 0)
this._appendSeparator();
let isFavorite = AppFavorites.getAppFavorites().isFavorite(this._source.app.get_id());
this._newWindowMenuItem = this._appendMenuItem(_("New Window"));
this._appendSeparator();
this._toggleFavoriteMenuItem = this._appendMenuItem(isFavorite ? _("Remove from Favorites")
: _("Add to Favorites"));
}
},
_appendSeparator: function () {
let separator = new PopupMenu.PopupSeparatorMenuItem();
this.addMenuItem(separator);
},
_appendMenuItem: function(labelText) {
// FIXME: app-well-menu-item style
let item = new PopupMenu.PopupMenuItem(labelText);
this.addMenuItem(item);
return item;
},
popup: function(activatingButton) {
this._redisplay();
this.open();
},
_onActivate: function (actor, child) {
if (child._window) {
let metaWindow = child._window;
this.emit('activate-window', metaWindow);
} else if (child == this._newWindowMenuItem) {
this._source.app.open_new_window(-1);
this.emit('activate-window', null);
} else if (child == this._toggleFavoriteMenuItem) {
let favs = AppFavorites.getAppFavorites();
let isFavorite = favs.isFavorite(this._source.app.get_id());
if (isFavorite)
favs.removeFavorite(this._source.app.get_id());
else
favs.addFavorite(this._source.app.get_id());
}
this.close();
}
});
Signals.addSignalMethods(AppIconMenu.prototype);