8d78c3a2ab
The xdnd timestamp gets updated on every xdnd-position event, so while waiting for the window timeout to fire we need to make sure we update the timestamp when getting on motion to activate the window with the correct timestamp.
778 lines
28 KiB
JavaScript
778 lines
28 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 Gtk = imports.gi.Gtk;
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const Meta = imports.gi.Meta;
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const Mainloop = imports.mainloop;
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const Signals = imports.signals;
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const Lang = imports.lang;
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const St = imports.gi.St;
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const Shell = imports.gi.Shell;
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const Gettext = imports.gettext.domain('gnome-shell');
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const _ = Gettext.gettext;
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const Gdk = imports.gi.Gdk;
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const AppDisplay = imports.ui.appDisplay;
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const Dash = imports.ui.dash;
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const DND = imports.ui.dnd;
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const DocDisplay = imports.ui.docDisplay;
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const Lightbox = imports.ui.lightbox;
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const Main = imports.ui.main;
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const MessageTray = imports.ui.messageTray;
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const Panel = imports.ui.panel;
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const PlaceDisplay = imports.ui.placeDisplay;
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const Tweener = imports.ui.tweener;
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const ViewSelector = imports.ui.viewSelector;
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const WorkspacesView = imports.ui.workspacesView;
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// Time for initial animation going into Overview mode
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const ANIMATION_TIME = 0.25;
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// We split the screen vertically between the dash and the view selector.
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const DASH_SPLIT_FRACTION = 0.1;
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const DND_WINDOW_SWITCH_TIMEOUT = 1250;
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const SwipeScrollDirection = {
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NONE: 0,
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HORIZONTAL: 1,
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VERTICAL: 2
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};
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const SwipeScrollResult = {
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CANCEL: 0,
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SWIPE: 1,
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CLICK: 2
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};
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function ShellInfo() {
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this._init();
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}
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ShellInfo.prototype = {
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_init: function() {
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this._source = null;
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this._undoCallback = null;
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},
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_onUndoClicked: function() {
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if (this._undoCallback)
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this._undoCallback();
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this._undoCallback = null;
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if (this._source)
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this._source.destroy();
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},
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setMessage: function(text, undoCallback, undoLabel) {
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if (this._source == null) {
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this._source = new MessageTray.SystemNotificationSource();
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this._source.connect('destroy', Lang.bind(this,
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function() {
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this._source = null;
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}));
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Main.messageTray.add(this._source);
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}
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let notification = this._source.notification;
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if (notification == null)
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notification = new MessageTray.Notification(this._source, text, null);
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else
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notification.update(text, null, { clear: true });
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notification.setTransient(true);
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this._undoCallback = undoCallback;
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if (undoCallback) {
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notification.addButton('system-undo',
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undoLabel ? undoLabel : _("Undo"));
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notification.connect('action-invoked',
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Lang.bind(this, this._onUndoClicked));
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}
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this._source.notify(notification);
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}
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};
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function Overview() {
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this._init();
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}
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Overview.prototype = {
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_init : function() {
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// The actual global.background_actor is inside global.window_group,
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// which is hidden when displaying the overview, so we display a clone.
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this._background = new Clutter.Clone({ source: global.background_actor });
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this._background.hide();
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global.overlay_group.add_actor(this._background);
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this._desktopFade = new St.Bin();
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global.overlay_group.add_actor(this._desktopFade);
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this._spacing = 0;
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this._group = new St.Group({ name: 'overview',
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reactive: true });
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this._group._delegate = this;
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this._group.connect('style-changed',
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Lang.bind(this, function() {
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let node = this._group.get_theme_node();
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let spacing = node.get_length('spacing');
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if (spacing != this._spacing) {
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this._spacing = spacing;
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this.relayout();
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}
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}));
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this._scrollDirection = SwipeScrollDirection.NONE;
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this._scrollAdjustment = null;
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this._capturedEventId = 0;
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this._buttonPressId = 0;
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this._workspacesDisplay = null;
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this.visible = false; // animating to overview, in overview, animating out
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this._shown = false; // show() and not hide()
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this._shownTemporarily = false; // showTemporarily() and not hideTemporarily()
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this._modal = false; // have a modal grab
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this.animationInProgress = false;
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this._hideInProgress = false;
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// During transitions, we raise this to the top to avoid having the overview
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// area be reactive; it causes too many issues such as double clicks on
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// Dash elements, or mouseover handlers in the workspaces.
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this._coverPane = new Clutter.Rectangle({ opacity: 0,
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reactive: true });
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this._group.add_actor(this._coverPane);
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this._coverPane.connect('event', Lang.bind(this, function (actor, event) { return true; }));
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this._group.hide();
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global.overlay_group.add_actor(this._group);
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this._coverPane.hide();
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// XDND
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this._dragMonitor = {
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dragMotion: Lang.bind(this, this._onDragMotion)
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};
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Main.xdndHandler.connect('drag-begin', Lang.bind(this, this._onDragBegin));
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Main.xdndHandler.connect('drag-end', Lang.bind(this, this._onDragEnd));
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this._windowSwitchTimeoutId = 0;
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this._windowSwitchTimestamp = 0;
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this._lastActiveWorkspaceIndex = -1;
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this._lastHoveredWindow = null;
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this._needsFakePointerEvent = false;
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this.workspaces = null;
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},
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// The members we construct that are implemented in JS might
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// want to access the overview as Main.overview to connect
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// signal handlers and so forth. So we create them after
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// construction in this init() method.
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init: function() {
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this.shellInfo = new ShellInfo();
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this.viewSelector = new ViewSelector.ViewSelector();
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this._group.add_actor(this.viewSelector.actor);
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this._workspacesDisplay = new WorkspacesView.WorkspacesDisplay();
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this.viewSelector.addViewTab(_("Windows"), this._workspacesDisplay.actor);
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let appView = new AppDisplay.AllAppDisplay();
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this.viewSelector.addViewTab(_("Applications"), appView.actor);
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// Default search providers
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this.viewSelector.addSearchProvider(new AppDisplay.AppSearchProvider());
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this.viewSelector.addSearchProvider(new AppDisplay.PrefsSearchProvider());
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this.viewSelector.addSearchProvider(new PlaceDisplay.PlaceSearchProvider());
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this.viewSelector.addSearchProvider(new DocDisplay.DocSearchProvider());
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// TODO - recalculate everything when desktop size changes
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this.dash = new Dash.Dash();
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this._group.add_actor(this.dash.actor);
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this.dash.actor.add_constraint(this.viewSelector.constrainY);
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this.dash.actor.add_constraint(this.viewSelector.constrainHeight);
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},
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_onDragBegin: function() {
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DND.addDragMonitor(this._dragMonitor);
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// Remember the workspace we started from
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this._lastActiveWorkspaceIndex = global.screen.get_active_workspace_index();
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},
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_onDragEnd: function(time) {
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// In case the drag was canceled while in the overview
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// we have to go back to where we started and hide
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// the overview
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if (this._shownTemporarily) {
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global.screen.get_workspace_by_index(this._lastActiveWorkspaceIndex).activate(time);
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this.hideTemporarily();
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}
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this._lastHoveredWindow = null;
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DND.removeMonitor(this._dragMonitor);
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},
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_fakePointerEvent: function() {
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let display = Gdk.Display.get_default();
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let deviceManager = display.get_device_manager();
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let pointer = deviceManager.get_client_pointer();
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let [screen, pointerX, pointerY] = pointer.get_position();
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pointer.warp(screen, pointerX, pointerY);
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},
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_onDragMotion: function(dragEvent) {
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let targetIsWindow = dragEvent.targetActor &&
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dragEvent.targetActor._delegate &&
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dragEvent.targetActor._delegate.metaWindow;
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this._windowSwitchTimestamp = global.get_current_time();
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if (targetIsWindow &&
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dragEvent.targetActor._delegate.metaWindow == this._lastHoveredWindow)
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return DND.DragMotionResult.CONTINUE;
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this._lastHoveredWindow = null;
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if (this._windowSwitchTimeoutId != 0) {
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Mainloop.source_remove(this._windowSwitchTimeoutId);
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this._windowSwitchTimeoutId = 0;
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this._needsFakePointerEvent = false;
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}
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if (targetIsWindow) {
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this._lastHoveredWindow = dragEvent.targetActor._delegate.metaWindow;
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this._windowSwitchTimeoutId = Mainloop.timeout_add(DND_WINDOW_SWITCH_TIMEOUT,
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Lang.bind(this, function() {
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this._needsFakePointerEvent = true;
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Main.activateWindow(dragEvent.targetActor._delegate.metaWindow,
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this._windowSwitchTimestamp);
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this.hideTemporarily();
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this._lastHoveredWindow = null;
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}));
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}
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return DND.DragMotionResult.CONTINUE;
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},
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setScrollAdjustment: function(adjustment, direction) {
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this._scrollAdjustment = adjustment;
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if (this._scrollAdjustment == null)
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this._scrollDirection = SwipeScrollDirection.NONE;
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else
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this._scrollDirection = direction;
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},
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_onButtonPress: function(actor, event) {
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if (this._scrollDirection == SwipeScrollDirection.NONE)
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return;
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let [stageX, stageY] = event.get_coords();
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this._dragStartX = this._dragX = stageX;
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this._dragStartY = this._dragY = stageY;
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this._dragStartValue = this._scrollAdjustment.value;
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this._lastMotionTime = -1; // used to track "stopping" while swipe-scrolling
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this._capturedEventId = global.stage.connect('captured-event',
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Lang.bind(this, this._onCapturedEvent));
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this.emit('swipe-scroll-begin');
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},
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_onCapturedEvent: function(actor, event) {
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let stageX, stageY;
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let threshold = Gtk.Settings.get_default().gtk_dnd_drag_threshold;
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switch(event.type()) {
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case Clutter.EventType.BUTTON_RELEASE:
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[stageX, stageY] = event.get_coords();
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// default to snapping back to the original value
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let newValue = this._dragStartValue;
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let minValue = this._scrollAdjustment.lower;
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let maxValue = this._scrollAdjustment.upper - this._scrollAdjustment.page_size;
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let direction;
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if (this._scrollDirection == SwipeScrollDirection.HORIZONTAL) {
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direction = stageX > this._dragStartX ? -1 : 1;
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if (St.Widget.get_default_direction() == St.TextDirection.RTL)
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direction *= -1;
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} else {
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direction = stageY > this._dragStartY ? -1 : 1;
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}
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// We default to scroll a full page size; both the first
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// and the last page may be smaller though, so we need to
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// adjust difference in those cases.
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let difference = direction * this._scrollAdjustment.page_size;
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if (this._dragStartValue + difference > maxValue)
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difference = maxValue - this._dragStartValue;
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else if (this._dragStartValue + difference < minValue)
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difference = minValue - this._dragStartValue;
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// If the user has moved more than half the scroll
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// difference, we want to "settle" to the new value
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// even if the user stops dragging rather "throws" by
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// releasing during the drag.
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let distance = this._dragStartValue - this._scrollAdjustment.value;
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let noStop = Math.abs(distance / difference) > 0.5;
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// We detect if the user is stopped by comparing the
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// timestamp of the button release with the timestamp of
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// the last motion. Experimentally, a difference of 0 or 1
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// millisecond indicates that the mouse is in motion, a
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// larger difference indicates that the mouse is stopped.
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if ((this._lastMotionTime > 0 &&
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this._lastMotionTime > event.get_time() - 2) ||
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noStop) {
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if (this._dragStartValue + difference >= minValue &&
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this._dragStartValue + difference <= maxValue)
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newValue += difference;
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}
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let result;
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// See if the user has moved the mouse enough to trigger
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// a drag
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if (Math.abs(stageX - this._dragStartX) < threshold &&
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Math.abs(stageY - this._dragStartY) < threshold) {
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// no motion? It's a click!
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result = SwipeScrollResult.CLICK;
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this.emit('swipe-scroll-end', result);
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} else {
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if (newValue == this._dragStartValue)
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result = SwipeScrollResult.CANCEL;
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else
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result = SwipeScrollResult.SWIPE;
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// The event capture handler is disconnected
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// while scrolling to the final position, so
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// to avoid undesired prelights we raise
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// the cover pane.
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this._coverPane.raise_top();
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this._coverPane.show();
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Tweener.addTween(this._scrollAdjustment,
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{ value: newValue,
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time: ANIMATION_TIME,
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transition: 'easeOutQuad',
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onCompleteScope: this,
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onComplete: function() {
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this._coverPane.hide();
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this.emit('swipe-scroll-end',
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result);
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}
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});
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}
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global.stage.disconnect(this._capturedEventId);
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this._capturedEventId = 0;
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return result != SwipeScrollResult.CLICK;
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case Clutter.EventType.MOTION:
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[stageX, stageY] = event.get_coords();
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let dx = this._dragX - stageX;
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let dy = this._dragY - stageY;
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let primary = global.get_primary_monitor();
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this._dragX = stageX;
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this._dragY = stageY;
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this._lastMotionTime = event.get_time();
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// See if the user has moved the mouse enough to trigger
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// a drag
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if (Math.abs(stageX - this._dragStartX) < threshold &&
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Math.abs(stageY - this._dragStartY) < threshold)
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return true;
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if (this._scrollDirection == SwipeScrollDirection.HORIZONTAL) {
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if (St.Widget.get_default_direction() == St.TextDirection.RTL)
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this._scrollAdjustment.value -= (dx / primary.width) * this._scrollAdjustment.page_size;
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else
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this._scrollAdjustment.value += (dx / primary.width) * this._scrollAdjustment.page_size;
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} else {
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this._scrollAdjustment.value += (dy / primary.height) * this._scrollAdjustment.page_size;
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}
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return true;
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// Block enter/leave events to avoid prelights
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// during swipe-scroll
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case Clutter.EventType.ENTER:
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case Clutter.EventType.LEAVE:
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return true;
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}
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return false;
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},
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_getDesktopClone: function() {
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let windows = global.get_window_actors().filter(function(w) {
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return w.meta_window.get_window_type() == Meta.WindowType.DESKTOP;
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});
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if (windows.length == 0)
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return null;
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let clone = new Clutter.Clone({ source: windows[0].get_texture() });
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clone.source.connect('destroy', Lang.bind(this, function() {
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clone.destroy();
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}));
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return clone;
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},
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relayout: function () {
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let primary = global.get_primary_monitor();
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let rtl = (St.Widget.get_default_direction () == St.TextDirection.RTL);
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let contentY = Panel.PANEL_HEIGHT;
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let contentHeight = primary.height - contentY - Main.messageTray.actor.height;
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this._group.set_position(primary.x, primary.y);
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this._group.set_size(primary.width, primary.height);
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this._coverPane.set_position(0, contentY);
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this._coverPane.set_size(primary.width, contentHeight);
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let dashWidth = Math.round(DASH_SPLIT_FRACTION * primary.width);
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let viewWidth = primary.width - dashWidth - this._spacing;
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let viewHeight = contentHeight - 2 * this._spacing;
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let viewY = contentY + this._spacing;
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let viewX = rtl ? 0 : dashWidth + this._spacing;
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// Set the dash's x position - y is handled by a constraint
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let dashX;
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if (rtl) {
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this.dash.actor.set_anchor_point_from_gravity(Clutter.Gravity.NORTH_EAST);
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dashX = primary.width;
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} else {
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dashX = 0;
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}
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this.dash.actor.set_x(dashX);
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this.viewSelector.actor.set_position(viewX, viewY);
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this.viewSelector.actor.set_size(viewWidth, viewHeight);
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},
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//// Public methods ////
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beginItemDrag: function(source) {
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this.emit('item-drag-begin');
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},
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endItemDrag: function(source) {
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this.emit('item-drag-end');
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},
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beginWindowDrag: function(source) {
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this.emit('window-drag-begin');
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},
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endWindowDrag: function(source) {
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this.emit('window-drag-end');
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},
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// Returns the scale the Overview has when we just start zooming out
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// to overview mode. That is, when just the active workspace is showing.
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getZoomedInScale : function() {
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return 1 / this.workspaces.getScale();
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},
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// Returns the position the Overview has when we just start zooming out
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// to overview mode. That is, when just the active workspace is showing.
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getZoomedInPosition : function() {
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let [posX, posY] = this.workspaces.getActiveWorkspacePosition();
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let scale = this.getZoomedInScale();
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return [- posX * scale, - posY * scale];
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},
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// Returns the current scale of the Overview.
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getScale : function() {
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return this.workspaces.actor.scaleX;
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},
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// Returns the current position of the Overview.
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getPosition : function() {
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return [this.workspaces.actor.x, this.workspaces.actor.y];
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},
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// show:
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//
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// Animates the overview visible and grabs mouse and keyboard input
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show : function() {
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if (this._shown)
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return;
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// Do this manually instead of using _syncInputMode, to handle failure
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if (!Main.pushModal(this.viewSelector.actor))
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return;
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this._modal = true;
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this._animateVisible();
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this._shown = true;
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this._buttonPressId = this._group.connect('button-press-event',
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Lang.bind(this, this._onButtonPress));
|
|
},
|
|
|
|
_animateVisible: function() {
|
|
if (this.visible || this.animationInProgress)
|
|
return;
|
|
|
|
this.visible = true;
|
|
this.animationInProgress = true;
|
|
|
|
// All the the actors in the window group are completely obscured,
|
|
// hiding the group holding them while the Overview is displayed greatly
|
|
// increases performance of the Overview especially when there are many
|
|
// windows visible.
|
|
//
|
|
// If we switched to displaying the actors in the Overview rather than
|
|
// clones of them, this would obviously no longer be necessary.
|
|
global.window_group.hide();
|
|
this._group.show();
|
|
this._background.show();
|
|
|
|
this._workspacesDisplay.show();
|
|
|
|
this.workspaces = this._workspacesDisplay.workspacesView;
|
|
global.overlay_group.add_actor(this.workspaces.actor);
|
|
|
|
if (!this._desktopFade.child)
|
|
this._desktopFade.child = this._getDesktopClone();
|
|
|
|
if (!this.workspaces.getActiveWorkspace().hasMaximizedWindows()) {
|
|
this._desktopFade.opacity = 255;
|
|
this._desktopFade.show();
|
|
Tweener.addTween(this._desktopFade,
|
|
{ opacity: 0,
|
|
time: ANIMATION_TIME,
|
|
transition: 'easeOutQuad'
|
|
});
|
|
}
|
|
|
|
// Create a zoom out effect. First scale the workspaces view up and
|
|
// position it so that the active workspace fills up the whole screen,
|
|
// then transform it to its normal dimensions and position.
|
|
// The opposite transition is used in hide().
|
|
this.workspaces.actor.scaleX = this.workspaces.actor.scaleY = this.getZoomedInScale();
|
|
[this.workspaces.actor.x, this.workspaces.actor.y] = this.getZoomedInPosition();
|
|
let primary = global.get_primary_monitor();
|
|
Tweener.addTween(this.workspaces.actor,
|
|
{ x: primary.x - this._group.x,
|
|
y: primary.y - this._group.y,
|
|
scaleX: 1,
|
|
scaleY: 1,
|
|
transition: 'easeOutQuad',
|
|
time: ANIMATION_TIME,
|
|
onComplete: this._showDone,
|
|
onCompleteScope: this
|
|
});
|
|
|
|
// Make the other elements fade in.
|
|
this._group.opacity = 0;
|
|
Tweener.addTween(this._group,
|
|
{ opacity: 255,
|
|
transition: 'easeOutQuad',
|
|
time: ANIMATION_TIME
|
|
});
|
|
|
|
this._coverPane.raise_top();
|
|
this._coverPane.show();
|
|
this.emit('showing');
|
|
},
|
|
|
|
// showTemporarily:
|
|
//
|
|
// Animates the overview visible without grabbing mouse and keyboard input;
|
|
// if show() has already been called, this has no immediate effect, but
|
|
// will result in the overview not being hidden until hideTemporarily() is
|
|
// called.
|
|
showTemporarily: function() {
|
|
if (this._shownTemporarily)
|
|
return;
|
|
|
|
this._syncInputMode();
|
|
this._animateVisible();
|
|
this._shownTemporarily = true;
|
|
},
|
|
|
|
// hide:
|
|
//
|
|
// Reverses the effect of show()
|
|
hide: function() {
|
|
if (!this._shown)
|
|
return;
|
|
|
|
if (!this._shownTemporarily)
|
|
this._animateNotVisible();
|
|
|
|
this._shown = false;
|
|
this._syncInputMode();
|
|
|
|
if (this._buttonPressId > 0)
|
|
this._group.disconnect(this._buttonPressId);
|
|
this._buttonPressId = 0;
|
|
},
|
|
|
|
// hideTemporarily:
|
|
//
|
|
// Reverses the effect of showTemporarily()
|
|
hideTemporarily: function() {
|
|
if (!this._shownTemporarily)
|
|
return;
|
|
|
|
if (!this._shown)
|
|
this._animateNotVisible();
|
|
|
|
this._shownTemporarily = false;
|
|
this._syncInputMode();
|
|
},
|
|
|
|
toggle: function() {
|
|
if (this._shown)
|
|
this.hide();
|
|
else
|
|
this.show();
|
|
},
|
|
|
|
/**
|
|
* getWorkspacesForWindow:
|
|
* @metaWindow: A #MetaWindow
|
|
*
|
|
* Returns the Workspaces object associated with the given window.
|
|
* This method is not be accessible if the overview is not open
|
|
* and will return %null.
|
|
*/
|
|
getWorkspacesForWindow: function(metaWindow) {
|
|
return this.workspaces;
|
|
},
|
|
|
|
//// Private methods ////
|
|
|
|
_syncInputMode: function() {
|
|
// We delay input mode changes during animation so that when removing the
|
|
// overview we don't have a problem with the release of a press/release
|
|
// going to an application.
|
|
if (this.animationInProgress)
|
|
return;
|
|
|
|
if (this._shown) {
|
|
if (!this._modal) {
|
|
if (Main.pushModal(this.dash.actor))
|
|
this._modal = true;
|
|
else
|
|
this.hide();
|
|
}
|
|
} else if (this._shownTemporarily) {
|
|
if (this._modal) {
|
|
Main.popModal(this.dash.actor);
|
|
this._modal = false;
|
|
}
|
|
global.stage_input_mode = Shell.StageInputMode.FULLSCREEN;
|
|
} else {
|
|
if (this._modal) {
|
|
Main.popModal(this.dash.actor);
|
|
this._modal = false;
|
|
}
|
|
else if (global.stage_input_mode == Shell.StageInputMode.FULLSCREEN)
|
|
global.stage_input_mode = Shell.StageInputMode.NORMAL;
|
|
}
|
|
},
|
|
|
|
_animateNotVisible: function() {
|
|
if (!this.visible || this.animationInProgress)
|
|
return;
|
|
|
|
this.animationInProgress = true;
|
|
this._hideInProgress = true;
|
|
|
|
if (!this.workspaces.getActiveWorkspace().hasMaximizedWindows()) {
|
|
this._desktopFade.opacity = 0;
|
|
this._desktopFade.show();
|
|
Tweener.addTween(this._desktopFade,
|
|
{ opacity: 255,
|
|
time: ANIMATION_TIME,
|
|
transition: 'easeOutQuad' });
|
|
}
|
|
|
|
this.workspaces.hide();
|
|
|
|
// Create a zoom in effect by transforming the workspaces view so that
|
|
// the active workspace fills up the whole screen. The opposite
|
|
// transition is used in show().
|
|
let scale = this.getZoomedInScale();
|
|
let [posX, posY] = this.getZoomedInPosition();
|
|
Tweener.addTween(this.workspaces.actor,
|
|
{ x: posX,
|
|
y: posY,
|
|
scaleX: scale,
|
|
scaleY: scale,
|
|
transition: 'easeOutQuad',
|
|
time: ANIMATION_TIME,
|
|
onComplete: this._hideDone,
|
|
onCompleteScope: this
|
|
});
|
|
|
|
// Make other elements fade out.
|
|
Tweener.addTween(this._group,
|
|
{ opacity: 0,
|
|
transition: 'easeOutQuad',
|
|
time: ANIMATION_TIME
|
|
});
|
|
|
|
this._coverPane.raise_top();
|
|
this._coverPane.show();
|
|
this.emit('hiding');
|
|
},
|
|
|
|
_showDone: function() {
|
|
this.animationInProgress = false;
|
|
this._desktopFade.hide();
|
|
this._coverPane.hide();
|
|
|
|
this.emit('shown');
|
|
// Handle any calls to hide* while we were showing
|
|
if (!this._shown && !this._shownTemporarily)
|
|
this._animateNotVisible();
|
|
|
|
this._syncInputMode();
|
|
},
|
|
|
|
_hideDone: function() {
|
|
global.window_group.show();
|
|
|
|
this.workspaces.destroy();
|
|
this.workspaces = null;
|
|
|
|
this._workspacesDisplay.hide();
|
|
|
|
this._desktopFade.hide();
|
|
this._background.hide();
|
|
this._group.hide();
|
|
|
|
this.visible = false;
|
|
this.animationInProgress = false;
|
|
this._hideInProgress = false;
|
|
|
|
this._coverPane.hide();
|
|
|
|
this.emit('hidden');
|
|
// Handle any calls to show* while we were hiding
|
|
if (this._shown || this._shownTemporarily)
|
|
this._animateVisible();
|
|
|
|
this._syncInputMode();
|
|
|
|
// Fake a pointer event if requested
|
|
if (this._needsFakePointerEvent) {
|
|
this._fakePointerEvent();
|
|
this._needsFakePointerEvent = false;
|
|
}
|
|
}
|
|
};
|
|
Signals.addSignalMethods(Overview.prototype);
|