c81c564941
Don't do an individual hover fixup for every window overlay, instead just use the new global.sync_hover() to fix up hovers once we have finished showing the overview. Based on a patch from Adel Gadllah <adel.gadllah@gmail.com> https://bugzilla.gnome.org/show_bug.cgi?id=638613
729 lines
26 KiB
JavaScript
729 lines
26 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', _("Windows"), this._workspacesDisplay.actor, 'text-x-generic');
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let appView = new AppDisplay.AllAppDisplay();
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this.viewSelector.addViewTab('applications', _("Applications"), appView.actor, 'system-run');
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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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// Translators: this is the name of the dock/favorites area on
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// the left of the overview
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Main.ctrlAltTabManager.addGroup(this.dash.actor, _("Dash"), 'user-bookmarks');
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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._resetWindowSwitchTimeout();
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this._lastHoveredWindow = null;
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DND.removeMonitor(this._dragMonitor);
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this.endItemDrag();
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},
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_resetWindowSwitchTimeout: function() {
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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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},
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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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this._resetWindowSwitchTimeout();
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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 = Main.panel.actor.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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cancelledItemDrag: function(source) {
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this.emit('item-drag-cancelled');
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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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cancelledWindowDrag: function(source) {
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this.emit('window-drag-cancelled');
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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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// 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._group))
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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));
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},
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_animateVisible: function() {
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if (this.visible || this.animationInProgress)
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return;
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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'
|
|
});
|
|
}
|
|
|
|
this._group.opacity = 0;
|
|
Tweener.addTween(this._group,
|
|
{ opacity: 255,
|
|
transition: 'easeOutQuad',
|
|
time: ANIMATION_TIME,
|
|
onComplete: this._showDone,
|
|
onCompleteScope: this
|
|
});
|
|
|
|
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();
|
|
},
|
|
|
|
//// 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._group))
|
|
this._modal = true;
|
|
else
|
|
this.hide();
|
|
}
|
|
} else if (this._shownTemporarily) {
|
|
if (this._modal) {
|
|
Main.popModal(this._group);
|
|
this._modal = false;
|
|
}
|
|
global.stage_input_mode = Shell.StageInputMode.FULLSCREEN;
|
|
} else {
|
|
if (this._modal) {
|
|
Main.popModal(this._group);
|
|
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();
|
|
|
|
// Make other elements fade out.
|
|
Tweener.addTween(this._group,
|
|
{ opacity: 0,
|
|
transition: 'easeOutQuad',
|
|
time: ANIMATION_TIME,
|
|
onComplete: this._hideDone,
|
|
onCompleteScope: this
|
|
});
|
|
|
|
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();
|
|
global.sync_pointer();
|
|
},
|
|
|
|
_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);
|