ceedc7e32c
The gnome-panel allows the user to hover over a tasklist entry while draging to activate a minimized or obscured window and drop onto it. Implement a similar behaviour by allowing draging to the activities button or the hotcorner (and thus opening the overview), which allows the user to activate any window (even on different workspaces) as a drop target. https://bugzilla.gnome.org/show_bug.cgi?id=601731
1204 lines
45 KiB
JavaScript
1204 lines
45 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 Lang = imports.lang;
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const Mainloop = imports.mainloop;
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const Shell = imports.gi.Shell;
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const St = imports.gi.St;
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const Signals = imports.signals;
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const Gettext = imports.gettext.domain('gnome-shell');
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const _ = Gettext.gettext;
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const DND = imports.ui.dnd;
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const Main = imports.ui.main;
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const Overview = imports.ui.overview;
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const Tweener = imports.ui.tweener;
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const Workspace = imports.ui.workspace;
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const WORKSPACE_SWITCH_TIME = 0.25;
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// Note that mutter has a compile-time limit of 36
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const MAX_WORKSPACES = 16;
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const WORKSPACE_DRAGGING_SCALE = 0.85;
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const CONTROLS_POP_IN_FRACTION = 0.8;
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const CONTROLS_POP_IN_TIME = 0.1;
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const INDICATOR_HOVER_SCALE = 1.1;
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function WorkspacesView(width, height, x, y, workspaces) {
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this._init(width, height, x, y, workspaces);
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}
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WorkspacesView.prototype = {
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_init: function(width, height, x, y, workspaces) {
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this.actor = new St.Group({ style_class: 'workspaces-view' });
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this.actor.set_clip(x, y, width, height);
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this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
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this.actor.connect('style-changed', Lang.bind(this,
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function() {
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let node = this.actor.get_theme_node();
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this._spacing = node.get_length('spacing');
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this._computeWorkspacePositions();
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}));
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this._width = width;
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this._height = height;
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this._x = x;
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this._y = y;
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this._spacing = 0;
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this._activeWorkspaceX = 0; // x offset of active ws while dragging
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this._activeWorkspaceY = 0; // y offset of active ws while dragging
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this._lostWorkspaces = [];
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this._animating = false; // tweening
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this._scrolling = false; // dragging desktop
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this._animatingScroll = false; // programatically updating the adjustment
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this._inDrag = false; // dragging a window
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this._lastMotionTime = -1; // used to track "stopping" while dragging workspaces
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let activeWorkspaceIndex = global.screen.get_active_workspace_index();
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this._workspaces = workspaces;
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// Add workspace actors
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for (let w = 0; w < global.screen.n_workspaces; w++)
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this._workspaces[w].actor.reparent(this.actor);
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this._workspaces[activeWorkspaceIndex].actor.raise_top();
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// Position/scale the desktop windows and their children after the
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// workspaces have been created. This cannot be done first because
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// window movement depends on the Workspaces object being accessible
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// as an Overview member.
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this._overviewShowingId =
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Main.overview.connect('showing',
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Lang.bind(this, function() {
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this._onRestacked();
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for (let w = 0; w < this._workspaces.length; w++)
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this._workspaces[w].zoomToOverview();
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}));
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this._scrollAdjustment = new St.Adjustment({ value: activeWorkspaceIndex,
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lower: 0,
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page_increment: 1,
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page_size: 1,
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step_increment: 0,
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upper: this._workspaces.length });
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this._scrollAdjustment.connect('notify::value',
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Lang.bind(this, this._onScroll));
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this._dragIndex = -1;
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this._buttonPressId = 0;
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this._capturedEventId = 0;
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this._timeoutId = 0;
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this._windowSelectionAppId = null;
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this._highlightWindow = null;
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this._switchWorkspaceNotifyId =
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global.window_manager.connect('switch-workspace',
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Lang.bind(this, this._activeWorkspaceChanged));
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this._restackedNotifyId =
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global.screen.connect('restacked',
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Lang.bind(this, this._onRestacked));
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this._itemDragBeginId = Main.overview.connect('item-drag-begin',
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Lang.bind(this, this._dragBegin));
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this._itemDragEndId = Main.overview.connect('item-drag-end',
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Lang.bind(this, this._dragEnd));
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this._windowDragBeginId = Main.overview.connect('window-drag-begin',
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Lang.bind(this, this._dragBegin));
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this._windowDragEndId = Main.overview.connect('window-drag-end',
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Lang.bind(this, this._dragEnd));
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},
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_lookupWorkspaceForMetaWindow: function (metaWindow) {
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for (let i = 0; i < this._workspaces.length; i++) {
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if (this._workspaces[i].containsMetaWindow(metaWindow))
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return this._workspaces[i];
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}
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return null;
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},
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setHighlightWindow: function (metaWindow) {
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// Looping over all workspaces is easier than keeping track of the last
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// highlighted window while trying to handle the window or workspace possibly
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// going away.
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for (let i = 0; i < this._workspaces.length; i++) {
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this._workspaces[i].setHighlightWindow(null);
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}
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if (metaWindow != null) {
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let workspace = this._lookupWorkspaceForMetaWindow(metaWindow);
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workspace.setHighlightWindow(metaWindow);
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}
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},
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getActiveWorkspace: function() {
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let active = global.screen.get_active_workspace_index();
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return this._workspaces[active];
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},
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_clearApplicationWindowSelection: function(reposition) {
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if (this._windowSelectionAppId == null)
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return;
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this._windowSelectionAppId = null;
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for (let i = 0; i < this._workspaces.length; i++) {
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this._workspaces[i].setLightboxMode(false);
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this._workspaces[i].setShowOnlyWindows(null, reposition);
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}
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},
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/**
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* setApplicationWindowSelection:
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* @appid: Application identifier string
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*
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* Enter a mode which shows only the windows owned by the
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* given application, and allow highlighting of a specific
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* window with setHighlightWindow().
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*/
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setApplicationWindowSelection: function (appId) {
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if (appId == null) {
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this._clearApplicationWindowSelection(true);
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return;
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}
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if (appId == this._windowSelectionAppId)
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return;
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this._windowSelectionAppId = appId;
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let appSys = Shell.AppSystem.get_default();
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let showOnlyWindows = {};
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let app = appSys.get_app(appId);
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let windows = app.get_windows();
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for (let i = 0; i < windows.length; i++) {
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showOnlyWindows[windows[i]] = 1;
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}
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for (let i = 0; i < this._workspaces.length; i++) {
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this._workspaces[i].setLightboxMode(true);
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this._workspaces[i].setShowOnlyWindows(showOnlyWindows, true);
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}
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},
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hide: function() {
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let activeWorkspaceIndex = global.screen.get_active_workspace_index();
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let activeWorkspace = this._workspaces[activeWorkspaceIndex];
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if (this._windowSelectionAppId != null)
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this._clearApplicationWindowSelection(false);
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activeWorkspace.actor.raise_top();
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for (let w = 0; w < this._workspaces.length; w++)
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this._workspaces[w].zoomFromOverview();
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},
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destroy: function() {
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this.actor.destroy();
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},
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getScale: function() {
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return this._workspaces[0].scale;
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},
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_onRestacked: function() {
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let stack = global.get_window_actors();
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let stackIndices = {};
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for (let i = 0; i < stack.length; i++) {
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// Use the stable sequence for an integer to use as a hash key
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stackIndices[stack[i].get_meta_window().get_stable_sequence()] = i;
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}
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for (let i = 0; i < this._workspaces.length; i++)
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this._workspaces[i].syncStacking(stackIndices);
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},
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// Handles a drop onto the (+) button; assumes the new workspace
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// has already been added
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acceptNewWorkspaceDrop: function(source, dropActor, x, y, time) {
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return this._workspaces[this._workspaces.length - 1].acceptDrop(source, dropActor, x, y, time);
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},
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// Get the grid position of the active workspace.
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getActiveWorkspacePosition: function() {
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let activeWorkspaceIndex = global.screen.get_active_workspace_index();
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let activeWorkspace = this._workspaces[activeWorkspaceIndex];
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return [activeWorkspace.x, activeWorkspace.y];
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},
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canAddWorkspace: function() {
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return global.screen.n_workspaces < MAX_WORKSPACES;
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},
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addWorkspace: function() {
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let ws = null;
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if (!this.canAddWorkspace()) {
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Main.overview.shellInfo.setMessage(_("Can't add a new workspace because maximum workspaces limit has been reached."));
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} else {
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let currentTime = global.get_current_time();
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ws = global.screen.append_new_workspace(false, currentTime);
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ws.activate(currentTime);
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}
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return ws;
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},
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canRemoveWorkspace: function() {
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return this._getWorkspaceIndexToRemove() > 0;
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},
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removeWorkspace: function() {
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if (!this.canRemoveWorkspace()) {
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Main.overview.shellInfo.setMessage(_("Can't remove the first workspace."));
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return;
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}
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let index = this._getWorkspaceIndexToRemove();
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let metaWorkspace = this._workspaces[index].metaWorkspace;
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global.screen.remove_workspace(metaWorkspace,
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global.get_current_time());
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},
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_handleDragOverNewWorkspace: function(source, dropActor, x, y, time) {
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if (source instanceof Workspace.WindowClone)
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return DND.DragMotionResult.MOVE_DROP;
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if (source.shellWorkspaceLaunch)
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return DND.DragMotionResult.COPY_DROP;
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return DND.DragMotionResult.CONTINUE;
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},
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_acceptNewWorkspaceDrop: function(source, dropActor, x, y, time) {
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let ws = this.addWorkspace();
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if (ws == null)
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return false;
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return this.acceptNewWorkspaceDrop(source, dropActor, x, y, time);
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},
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// Compute the position, scale and opacity of the workspaces, but don't
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// actually change the actors to match
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_computeWorkspacePositions: function() {
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let active = global.screen.get_active_workspace_index();
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let scale = this._width / global.screen_width;
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if (this._inDrag)
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scale *= WORKSPACE_DRAGGING_SCALE;
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this._setWorkspaceDraggable(active, true);
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let _width = this._workspaces[0].actor.width * scale;
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let _height = this._workspaces[0].actor.height * scale;
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this._activeWorkspaceX = (this._width - _width) / 2;
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this._activeWorkspaceY = (this._height - _height) / 2;
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for (let w = 0; w < this._workspaces.length; w++) {
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let workspace = this._workspaces[w];
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workspace.opacity = (this._inDrag && w != active) ? 200 : 255;
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workspace.scale = scale;
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if (St.Widget.get_default_direction() == St.TextDirection.RTL) {
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workspace.x = this._x + this._activeWorkspaceX
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- (w - active) * (_width + this._spacing);
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} else {
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workspace.x = this._x + this._activeWorkspaceX
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+ (w - active) * (_width + this._spacing);
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}
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workspace.y = this._y + this._activeWorkspaceY;
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}
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},
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_scrollToActive: function(showAnimation) {
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let active = global.screen.get_active_workspace_index();
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this._computeWorkspacePositions();
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this._updateWorkspaceActors(showAnimation);
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this._updateScrollAdjustment(active, showAnimation);
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},
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// _setWorkspaceDraggable:
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// @index: workspace index
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// @draggable: whether workspace @index should be draggable
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//
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// If @draggable is %true, set up workspace @index to allow switching
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// workspaces by dragging the desktop - if a draggable workspace has
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// been set up before, it will be reset before the new one is made
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// draggable.
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// If @draggable is %false, workspace @index is reset to no longer allow
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// dragging.
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_setWorkspaceDraggable: function(index, draggable) {
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if (index < 0 || index >= global.n_workspaces)
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return;
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let dragActor = this._workspaces[index].actor;
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if (draggable) {
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this._workspaces[index].actor.reactive = true;
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// reset old draggable workspace
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if (this._dragIndex > -1)
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this._setWorkspaceDraggable(this._dragIndex, false);
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this._dragIndex = index;
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this._buttonPressId = dragActor.connect('button-press-event',
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Lang.bind(this, this._onButtonPress));
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} else {
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this._dragIndex = -1;
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if (this._buttonPressId > 0) {
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if (dragActor.get_stage())
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dragActor.disconnect(this._buttonPressId);
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this._buttonPressId = 0;
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}
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if (this._capturedEventId > 0) {
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global.stage.disconnect(this._capturedEventId);
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this._capturedEventId = 0;
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}
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}
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},
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// start dragging the active workspace
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_onButtonPress: function(actor, event) {
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if (actor != event.get_source())
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return;
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if (this._dragIndex == -1)
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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._scrolling = true;
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this._capturedEventId = global.stage.connect('captured-event',
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Lang.bind(this, this._onCapturedEvent));
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},
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// handle captured events while dragging a workspace
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_onCapturedEvent: function(actor, event) {
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let active = global.screen.get_active_workspace_index();
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let stageX, stageY;
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switch (event.type()) {
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case Clutter.EventType.BUTTON_RELEASE:
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this._scrolling = false;
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[stageX, stageY] = event.get_coords();
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// default to snapping back to the original workspace
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let activate = this._dragIndex;
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let last = global.screen.n_workspaces - 1;
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// If the user has moved more than half a workspace, we want to "settle"
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// to the new workspace even if the user stops dragging rather "throws"
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// by releasing during the drag.
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let noStop = Math.abs(activate - this._scrollAdjustment.value) > 0.5;
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let difference = stageX > this._dragStartX ? -1 : 1;
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if (St.Widget.get_default_direction() == St.TextDirection.RTL)
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difference *= -1;
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// We detect if the user is stopped by comparing the timestamp of the button
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// release with the timestamp of the last motion. Experimentally, a difference
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// of 0 or 1 millisecond indicates that the mouse is in motion, a larger
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// difference indicates that the mouse is stopped.
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if ((this._lastMotionTime > 0 && this._lastMotionTime > event.get_time() - 2) || noStop) {
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if (activate + difference >= 0 &&
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activate + difference <= last)
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activate += difference;
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}
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if (activate != active) {
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let workspace = this._workspaces[activate].metaWorkspace;
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workspace.activate(global.get_current_time());
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} else {
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this._scrollToActive(true);
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}
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if (stageX == this._dragStartX)
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// no motion? It's a click!
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return false;
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return true;
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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 primary = global.get_primary_monitor();
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if (St.Widget.get_default_direction() == St.TextDirection.RTL)
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this._scrollAdjustment.value -= (dx / primary.width);
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else
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this._scrollAdjustment.value += (dx / primary.width);
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this._dragX = stageX;
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this._lastMotionTime = event.get_time();
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return true;
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}
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return false;
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},
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// Update workspace actors parameters to the values calculated in
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// _computeWorkspacePositions()
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// @showAnimation: iff %true, transition between states
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_updateWorkspaceActors: function(showAnimation) {
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let active = global.screen.get_active_workspace_index();
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let targetWorkspaceNewX = this._x + this._activeWorkspaceX;
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let targetWorkspaceCurrentX = this._workspaces[active].x;
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let dx = targetWorkspaceNewX - targetWorkspaceCurrentX;
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this._setWorkspaceDraggable(active, true);
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this._animating = showAnimation;
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for (let w = 0; w < this._workspaces.length; w++) {
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let workspace = this._workspaces[w];
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Tweener.removeTweens(workspace.actor);
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workspace.x += dx;
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if (showAnimation) {
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let params = { x: workspace.x,
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y: workspace.y,
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scale_x: workspace.scale,
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scale_y: workspace.scale,
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opacity: workspace.opacity,
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time: WORKSPACE_SWITCH_TIME,
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transition: 'easeOutQuad'
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};
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// we have to call _updateVisibility() once before the
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// animation and once afterwards - it does not really
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// matter which tween we use, so we pick the first one ...
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if (w == 0) {
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this._updateVisibility();
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params.onComplete = Lang.bind(this,
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function() {
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this._animating = false;
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this._updateVisibility();
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});
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}
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Tweener.addTween(workspace.actor, params);
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} else {
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workspace.actor.set_scale(workspace.scale, workspace.scale);
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workspace.actor.set_position(workspace.x, workspace.y);
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workspace.actor.opacity = workspace.opacity;
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if (w == 0)
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this._updateVisibility();
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}
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}
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for (let l = 0; l < this._lostWorkspaces.length; l++) {
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let workspace = this._lostWorkspaces[l];
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Tweener.removeTweens(workspace.actor);
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workspace.x += dx;
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workspace.actor.show();
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workspace.hideWindowsOverlays();
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if (showAnimation) {
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Tweener.addTween(workspace.actor,
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{ x: workspace.x,
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time: WORKSPACE_SWITCH_TIME,
|
|
transition: 'easeOutQuad',
|
|
onComplete: Lang.bind(this,
|
|
this._cleanWorkspaces)
|
|
});
|
|
} else {
|
|
this._cleanWorkspaces();
|
|
}
|
|
}
|
|
},
|
|
|
|
_updateVisibility: function() {
|
|
let active = global.screen.get_active_workspace_index();
|
|
|
|
for (let w = 0; w < this._workspaces.length; w++) {
|
|
let workspace = this._workspaces[w];
|
|
if (this._animating || this._scrolling) {
|
|
workspace.hideWindowsOverlays();
|
|
workspace.actor.show();
|
|
} else {
|
|
workspace.showWindowsOverlays();
|
|
if (this._inDrag)
|
|
workspace.actor.visible = (Math.abs(w - active) <= 1);
|
|
else
|
|
workspace.actor.visible = (w == active);
|
|
}
|
|
}
|
|
},
|
|
|
|
_cleanWorkspaces: function() {
|
|
if (this._lostWorkspaces.length == 0)
|
|
return;
|
|
|
|
for (let l = 0; l < this._lostWorkspaces.length; l++)
|
|
this._lostWorkspaces[l].destroy();
|
|
this._lostWorkspaces = [];
|
|
|
|
this._computeWorkspacePositions();
|
|
this._updateWorkspaceActors(false);
|
|
},
|
|
|
|
_updateScrollAdjustment: function(index, showAnimation) {
|
|
if (this._scrolling)
|
|
return;
|
|
|
|
this._animatingScroll = true;
|
|
|
|
if (showAnimation) {
|
|
Tweener.addTween(this._scrollAdjustment, {
|
|
value: index,
|
|
time: WORKSPACE_SWITCH_TIME,
|
|
transition: 'easeOutQuad',
|
|
onComplete: Lang.bind(this,
|
|
function() {
|
|
this._animatingScroll = false;
|
|
})
|
|
});
|
|
} else {
|
|
this._scrollAdjustment.value = index;
|
|
this._animatingScroll = false;
|
|
}
|
|
},
|
|
|
|
updateWorkspaces: function(oldNumWorkspaces, newNumWorkspaces, lostWorkspaces) {
|
|
let active = global.screen.get_active_workspace_index();
|
|
|
|
for (let l = 0; l < lostWorkspaces.length; l++)
|
|
lostWorkspaces[l].disconnectAll();
|
|
|
|
Tweener.addTween(this._scrollAdjustment,
|
|
{ upper: newNumWorkspaces,
|
|
time: WORKSPACE_SWITCH_TIME,
|
|
transition: 'easeOutQuad'
|
|
});
|
|
|
|
if (newNumWorkspaces > oldNumWorkspaces) {
|
|
for (let w = oldNumWorkspaces; w < newNumWorkspaces; w++)
|
|
this.actor.add_actor(this._workspaces[w].actor);
|
|
|
|
this._computeWorkspacePositions();
|
|
this._updateWorkspaceActors(false);
|
|
} else {
|
|
this._lostWorkspaces = lostWorkspaces;
|
|
}
|
|
|
|
this._scrollToActive(true);
|
|
},
|
|
|
|
_activeWorkspaceChanged: function(wm, from, to, direction) {
|
|
if (this._scrolling)
|
|
return;
|
|
|
|
this._scrollToActive(true);
|
|
},
|
|
|
|
_onDestroy: function() {
|
|
Main.overview.disconnect(this._overviewShowingId);
|
|
global.window_manager.disconnect(this._switchWorkspaceNotifyId);
|
|
global.screen.disconnect(this._restackedNotifyId);
|
|
|
|
this._setWorkspaceDraggable(this._dragIndex, false);
|
|
if (this._timeoutId) {
|
|
Mainloop.source_remove(this._timeoutId);
|
|
this._timeoutId = 0;
|
|
}
|
|
if (this._itemDragBeginId > 0) {
|
|
Main.overview.disconnect(this._itemDragBeginId);
|
|
this._itemDragBeginId = 0;
|
|
}
|
|
if (this._itemDragEndId > 0) {
|
|
Main.overview.disconnect(this._itemDragEndId);
|
|
this._itemDragEndId = 0;
|
|
}
|
|
if (this._windowDragBeginId > 0) {
|
|
Main.overview.disconnect(this._windowDragBeginId);
|
|
this._windowDragBeginId = 0;
|
|
}
|
|
if (this._windowDragEndId > 0) {
|
|
Main.overview.disconnect(this._windowDragEndId);
|
|
this._windowDragEndId = 0;
|
|
}
|
|
},
|
|
|
|
_dragBegin: function() {
|
|
if (this._scrolling)
|
|
return;
|
|
|
|
this._inDrag = true;
|
|
this._computeWorkspacePositions();
|
|
this._updateWorkspaceActors(true);
|
|
|
|
this._dragMonitor = {
|
|
dragMotion: Lang.bind(this, this._onDragMotion)
|
|
};
|
|
DND.addDragMonitor(this._dragMonitor);
|
|
},
|
|
|
|
_onDragMotion: function(dragEvent) {
|
|
if (Main.overview.animationInProgress)
|
|
return DND.DragMotionResult.CONTINUE;
|
|
|
|
let primary = global.get_primary_monitor();
|
|
|
|
let activeWorkspaceIndex = global.screen.get_active_workspace_index();
|
|
let leftWorkspace, rightWorkspace;
|
|
if (St.Widget.get_default_direction() == St.TextDirection.RTL) {
|
|
leftWorkspace = this._workspaces[activeWorkspaceIndex + 1];
|
|
rightWorkspace = this._workspaces[activeWorkspaceIndex - 1];
|
|
} else {
|
|
leftWorkspace = this._workspaces[activeWorkspaceIndex - 1];
|
|
rightWorkspace = this._workspaces[activeWorkspaceIndex + 1];
|
|
}
|
|
let hoverWorkspace = null;
|
|
|
|
// reactive monitor edges
|
|
let leftEdge = primary.x;
|
|
let switchLeft = (dragEvent.x <= leftEdge && leftWorkspace);
|
|
if (switchLeft && this._dragOverLastX != leftEdge) {
|
|
leftWorkspace.metaWorkspace.activate(global.get_current_time());
|
|
leftWorkspace.setReservedSlot(dragEvent.dragActor._delegate);
|
|
this._dragOverLastX = leftEdge;
|
|
|
|
return DND.DragMotionResult.CONTINUE;
|
|
}
|
|
let rightEdge = primary.x + primary.width - 1;
|
|
let switchRight = (dragEvent.x >= rightEdge && rightWorkspace);
|
|
if (switchRight && this._dragOverLastX != rightEdge) {
|
|
rightWorkspace.metaWorkspace.activate(global.get_current_time());
|
|
rightWorkspace.setReservedSlot(dragEvent.dragActor._delegate);
|
|
this._dragOverLastX = rightEdge;
|
|
|
|
return DND.DragMotionResult.CONTINUE;
|
|
}
|
|
this._dragOverLastX = dragEvent.x;
|
|
let result = DND.DragMotionResult.CONTINUE;
|
|
|
|
// check hover state of new workspace area / inactive workspaces
|
|
if (leftWorkspace) {
|
|
if (leftWorkspace.actor.contains(dragEvent.targetActor)) {
|
|
hoverWorkspace = leftWorkspace;
|
|
leftWorkspace.opacity = leftWorkspace.actor.opacity = 255;
|
|
result = leftWorkspace.handleDragOver(dragEvent.source, dragEvent.dragActor);
|
|
} else {
|
|
leftWorkspace.opacity = leftWorkspace.actor.opacity = 200;
|
|
}
|
|
}
|
|
|
|
if (rightWorkspace) {
|
|
if (rightWorkspace.actor.contains(dragEvent.targetActor)) {
|
|
hoverWorkspace = rightWorkspace;
|
|
rightWorkspace.opacity = rightWorkspace.actor.opacity = 255;
|
|
result = rightWorkspace.handleDragOver(dragEvent.source, dragEvent.dragActor);
|
|
} else {
|
|
rightWorkspace.opacity = rightWorkspace.actor.opacity = 200;
|
|
}
|
|
}
|
|
|
|
// handle delayed workspace switches
|
|
if (hoverWorkspace) {
|
|
if (!this._timeoutId)
|
|
this._timeoutId = Mainloop.timeout_add_seconds(1,
|
|
Lang.bind(this, function() {
|
|
hoverWorkspace.metaWorkspace.activate(global.get_current_time());
|
|
hoverWorkspace.setReservedSlot(dragEvent.dragActor._delegate);
|
|
return false;
|
|
}));
|
|
} else {
|
|
if (this._timeoutId) {
|
|
Mainloop.source_remove(this._timeoutId);
|
|
this._timeoutId = 0;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
},
|
|
|
|
_dragEnd: function() {
|
|
if (this._timeoutId) {
|
|
Mainloop.source_remove(this._timeoutId);
|
|
this._timeoutId = 0;
|
|
}
|
|
DND.removeMonitor(this._dragMonitor);
|
|
this._inDrag = false;
|
|
this._computeWorkspacePositions();
|
|
this._updateWorkspaceActors(true);
|
|
|
|
for (let i = 0; i < this._workspaces.length; i++)
|
|
this._workspaces[i].setReservedSlot(null);
|
|
},
|
|
|
|
// sync the workspaces' positions to the value of the scroll adjustment
|
|
// and change the active workspace if appropriate
|
|
_onScroll: function(adj) {
|
|
if (this._animatingScroll)
|
|
return;
|
|
|
|
let active = global.screen.get_active_workspace_index();
|
|
let current = Math.round(adj.value);
|
|
|
|
if (active != current) {
|
|
let metaWorkspace = this._workspaces[current].metaWorkspace;
|
|
metaWorkspace.activate(global.get_current_time());
|
|
}
|
|
|
|
let last = this._workspaces.length - 1;
|
|
let firstWorkspaceX = this._workspaces[0].actor.x;
|
|
let lastWorkspaceX = this._workspaces[last].actor.x;
|
|
let workspacesWidth = lastWorkspaceX - firstWorkspaceX;
|
|
|
|
if (adj.upper == 1)
|
|
return;
|
|
|
|
let currentX = firstWorkspaceX;
|
|
let newX = this._x - adj.value / (adj.upper - 1) * workspacesWidth;
|
|
|
|
let dx = newX - currentX;
|
|
|
|
for (let i = 0; i < this._workspaces.length; i++) {
|
|
this._workspaces[i]._hideAllOverlays();
|
|
this._workspaces[i].actor.visible = Math.abs(i - adj.value) <= 1;
|
|
this._workspaces[i].actor.x += dx;
|
|
}
|
|
},
|
|
|
|
_getWorkspaceIndexToRemove: function() {
|
|
return global.screen.get_active_workspace_index();
|
|
}
|
|
};
|
|
Signals.addSignalMethods(WorkspacesView.prototype);
|
|
|
|
|
|
function WorkspaceIndicatorPanel() {
|
|
this._init();
|
|
}
|
|
|
|
WorkspaceIndicatorPanel.prototype = {
|
|
_init: function() {
|
|
this.actor = new Shell.GenericContainer({ clip_to_allocation: true });
|
|
this.actor.connect('get-preferred-width', Lang.bind(this, this._getPreferredWidth));
|
|
this.actor.connect('get-preferred-height', Lang.bind(this, this._getPreferredHeight));
|
|
this.actor.connect('allocate', Lang.bind(this, this._allocate));
|
|
|
|
this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
|
|
|
|
this._box = new St.BoxLayout({ style_class: 'workspace-indicator-panel' });
|
|
this.actor.add_actor(this._box);
|
|
|
|
this._switchWorkspaceNotifyId =
|
|
global.window_manager.connect('switch-workspace',
|
|
Lang.bind(this, this._updateActive));
|
|
},
|
|
|
|
_onDestroy: function() {
|
|
if (this._switchWorkspaceNotifyId > 0)
|
|
global.window_manager.disconnect(this._switchWorkspaceNotifyId);
|
|
this._switchWorkspaceNotifyId = 0;
|
|
this._workspaces = null;
|
|
},
|
|
|
|
// Allocate the box centered to the available area like StBin would do,
|
|
// except that the full height is used even if the box is not actually
|
|
// shown. This is a workaround, as the size of the workspace area is
|
|
// determined once when entering the overview, so if it would take up
|
|
// the indicator space in that case, it would overlap it later when
|
|
// additional workspaces were added.
|
|
_allocate: function(actor, box, flags) {
|
|
let children = this._box.get_children();
|
|
|
|
let availWidth = box.x2 - box.x1;
|
|
let availHeight = box.y2 - box.y1;
|
|
let [minWidth, natWidth] = this._box.get_preferred_width(-1);
|
|
let [minHeight, natHeight] = this._box.get_preferred_height(-1);
|
|
|
|
let childBox = new Clutter.ActorBox();
|
|
childBox.x1 = Math.floor((availWidth - natWidth) / 2);
|
|
childBox.x2 = childBox.x1 + natWidth;
|
|
childBox.y1 = Math.floor((availHeight - natHeight) / 2);
|
|
childBox.y2 = childBox.y2 + natHeight;
|
|
|
|
this._box.allocate(childBox, flags);
|
|
},
|
|
|
|
_getPreferredWidth: function(actor, forHeight, alloc) {
|
|
let [minWidth, natWidth] = this._box.get_preferred_width(-1);
|
|
alloc.min_size = 0;
|
|
alloc.natural_size = natWidth;
|
|
},
|
|
|
|
_getPreferredHeight: function(actor, forWidth, alloc) {
|
|
let [minHeight, natHeight] = this._box.get_preferred_height(-1);
|
|
alloc.min_size = minHeight * INDICATOR_HOVER_SCALE;
|
|
alloc.natural_size = natHeight * INDICATOR_HOVER_SCALE;
|
|
},
|
|
|
|
updateWorkspaces: function(workspaces) {
|
|
this._workspaces = workspaces;
|
|
|
|
// Do not display a single indicator
|
|
if (this._workspaces.length == 1)
|
|
this.actor.set_skip_paint(this._box, true);
|
|
else
|
|
this.actor.set_skip_paint(this._box, false);
|
|
|
|
this._box.remove_all();
|
|
for (let i = 0; i < this._workspaces.length; i++) {
|
|
let actor = new St.Button({ style_class: 'workspace-indicator',
|
|
track_hover: true });
|
|
let workspace = this._workspaces[i];
|
|
let metaWorkspace = this._workspaces[i].metaWorkspace;
|
|
|
|
actor.connect('clicked', Lang.bind(this, function() {
|
|
metaWorkspace.activate(global.get_current_time());
|
|
}));
|
|
actor.connect('notify::hover', Lang.bind(this, function() {
|
|
if (actor.hover)
|
|
actor.set_scale_with_gravity(INDICATOR_HOVER_SCALE,
|
|
INDICATOR_HOVER_SCALE,
|
|
Clutter.Gravity.CENTER);
|
|
else
|
|
actor.set_scale(1.0, 1.0);
|
|
}));
|
|
|
|
actor._delegate = {
|
|
acceptDrop: Lang.bind(this,
|
|
function(source, actor, x, y, time) {
|
|
if (workspace.acceptDrop(source, actor, x, y, time)) {
|
|
metaWorkspace.activate(time);
|
|
return true;
|
|
}
|
|
return false;
|
|
}),
|
|
handleDragOver: Lang.bind(this,
|
|
function(source, actor, x, y, time) {
|
|
return workspace.handleDragOver(source, actor, x, y, time);
|
|
})
|
|
};
|
|
|
|
actor.connect('scroll-event', Lang.bind(this, this._onScrollEvent));
|
|
|
|
this._box.add(actor);
|
|
}
|
|
|
|
this._updateActive();
|
|
},
|
|
|
|
_updateActive: function() {
|
|
let children = this._box.get_children();
|
|
let activeIndex = global.screen.get_active_workspace_index();
|
|
for (let i = 0; i < children.length; i++) {
|
|
if (i == activeIndex)
|
|
children[i].add_style_class_name('active');
|
|
else
|
|
children[i].remove_style_class_name('active');
|
|
}
|
|
},
|
|
|
|
// handle scroll wheel events:
|
|
// activate the next or previous workspace and let the signal handler
|
|
// manage the animation
|
|
_onScrollEvent: function(actor, event) {
|
|
let direction = event.get_scroll_direction();
|
|
let current = global.screen.get_active_workspace_index();
|
|
let last = global.screen.n_workspaces - 1;
|
|
let activate = current;
|
|
|
|
let difference = direction == Clutter.ScrollDirection.UP ? -1 : 1;
|
|
if (St.Widget.get_default_direction() == St.TextDirection.RTL)
|
|
difference *= -1;
|
|
|
|
if (activate + difference >= 0 && activate + difference <= last)
|
|
activate += difference;
|
|
|
|
if (activate != current) {
|
|
let metaWorkspace = this._workspaces[activate].metaWorkspace;
|
|
metaWorkspace.activate(global.get_current_time());
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
function WorkspaceControlsContainer(controls) {
|
|
this._init(controls);
|
|
}
|
|
|
|
WorkspaceControlsContainer.prototype = {
|
|
_init: function(controls) {
|
|
this.actor = new Shell.GenericContainer({ clip_to_allocation: true });
|
|
this.actor.connect('get-preferred-width',
|
|
Lang.bind(this, this._getPreferredWidth));
|
|
this.actor.connect('get-preferred-height',
|
|
Lang.bind(this, this._getPreferredHeight));
|
|
this.actor.connect('allocate', Lang.bind(this, this._allocate));
|
|
|
|
this.actor.add_actor(controls);
|
|
|
|
this._controls = controls;
|
|
this._controls.reactive = true;
|
|
this._controls.track_hover = true;
|
|
this._controls.connect('notify::hover',
|
|
Lang.bind(this, this._onHoverChanged));
|
|
|
|
this._itemDragBeginId = 0;
|
|
this._itemDragEndId = 0;
|
|
this._windowDragBeginId = 0;
|
|
this._windowDragEndId = 0;
|
|
},
|
|
|
|
show: function() {
|
|
if (this._itemDragBeginId == 0)
|
|
this._itemDragBeginId = Main.overview.connect('item-drag-begin',
|
|
Lang.bind(this, this.popOut));
|
|
if (this._itemDragEndId == 0)
|
|
this._itemDragEndId = Main.overview.connect('item-drag-end',
|
|
Lang.bind(this, this.popIn));
|
|
if (this._windowDragBeginId == 0)
|
|
this._windowDragBeginId = Main.overview.connect('window-drag-begin',
|
|
Lang.bind(this, this.popOut));
|
|
if (this._windowDragEndId == 0)
|
|
this._windowDragEndId = Main.overview.connect('window-drag-end',
|
|
Lang.bind(this, this.popIn));
|
|
this._controls.x = this._poppedInX();
|
|
},
|
|
|
|
hide: function() {
|
|
if (this._itemDragBeginId > 0) {
|
|
Main.overview.disconnect(this._itemDragBeginId);
|
|
this._itemDragBeginId = 0;
|
|
}
|
|
if (this._itemEndBeginId > 0) {
|
|
Main.overview.disconnect(this._itemDragEndId);
|
|
this._itemDragEndId = 0;
|
|
}
|
|
if (this._windowDragBeginId > 0) {
|
|
Main.overview.disconnect(this._windowDragBeginId);
|
|
this._windowDragBeginId = 0;
|
|
}
|
|
if (this._windowDragEndId > 0) {
|
|
Main.overview.disconnect(this._windowDragEndId);
|
|
this._windowDragEndId = 0;
|
|
}
|
|
},
|
|
|
|
_getPreferredWidth: function(actor, forHeight, alloc) {
|
|
let [minWidth, natWidth] = this._controls.get_preferred_width(-1);
|
|
alloc.min_size = minWidth;
|
|
alloc.natural_size = natWidth;
|
|
},
|
|
|
|
// Always request the full width ...
|
|
_getPreferredHeight: function(actor, forWidth, alloc) {
|
|
let [minHeight, natHeight] = this._controls.get_preferred_height(-1);
|
|
alloc.min_size = minHeight;
|
|
alloc.natural_size = natHeight;
|
|
},
|
|
|
|
// ... even when the controls are popped in, to keep the width constant.
|
|
// This is necessary as the workspace size is determined once before
|
|
// entering the overview, when the controls are popped in - if the width
|
|
// varied, the workspaces would be given too much width, and the controls
|
|
// would be overlapped by the workspaces when popped out, rendering them
|
|
// useless.
|
|
_allocate: function(actor, box, flags) {
|
|
let childBox = new Clutter.ActorBox();
|
|
childBox.x1 = this._controls.x;
|
|
childBox.x2 = this._controls.x + this._controls.width;
|
|
childBox.y1 = 0;
|
|
childBox.y2 = box.y2 - box.y1;
|
|
this._controls.allocate(childBox, flags);
|
|
},
|
|
|
|
_onHoverChanged: function() {
|
|
if (this._controls.hover)
|
|
this.popOut();
|
|
else
|
|
this.popIn();
|
|
},
|
|
|
|
_poppedInX: function() {
|
|
let x = CONTROLS_POP_IN_FRACTION * this._controls.width;
|
|
if (St.Widget.get_default_direction() == St.TextDirection.RTL)
|
|
return -x;
|
|
return x;
|
|
},
|
|
|
|
popOut: function() {
|
|
Tweener.addTween(this._controls,
|
|
{ x: 0,
|
|
time: CONTROLS_POP_IN_TIME,
|
|
transition: 'easeOutQuad' });
|
|
},
|
|
|
|
popIn: function() {
|
|
Tweener.addTween(this._controls,
|
|
{ x: this._poppedInX(),
|
|
time: CONTROLS_POP_IN_TIME,
|
|
transition: 'easeOutQuad' });
|
|
}
|
|
};
|
|
|
|
function WorkspacesDisplay() {
|
|
this._init();
|
|
}
|
|
|
|
WorkspacesDisplay.prototype = {
|
|
_init: function() {
|
|
this.actor = new St.BoxLayout();
|
|
|
|
let workspacesBox = new St.BoxLayout({ vertical: true });
|
|
this.actor.add(workspacesBox, { expand: true });
|
|
|
|
// placeholder for window previews
|
|
this._workspacesBin = new St.Bin();
|
|
workspacesBox.add(this._workspacesBin, { expand: true });
|
|
|
|
this._workspaceIndicatorPanel = new WorkspaceIndicatorPanel();
|
|
workspacesBox.add(this._workspaceIndicatorPanel.actor);
|
|
|
|
let controls = new St.BoxLayout({ vertical: true,
|
|
style_class: 'workspace-controls' });
|
|
this._controlsContainer = new WorkspaceControlsContainer(controls);
|
|
this.actor.add(this._controlsContainer.actor);
|
|
|
|
// Add/remove workspace buttons
|
|
this._removeButton = new St.Button({ label: '–', // n-dash
|
|
style_class: 'remove-workspace' });
|
|
this._removeButton.connect('clicked', Lang.bind(this, function() {
|
|
this.workspacesView.removeWorkspace();
|
|
}));
|
|
controls.add(this._removeButton);
|
|
|
|
this._addButton = new St.Button({ label: '+',
|
|
style_class: 'add-workspace' });
|
|
this._addButton.connect('clicked', Lang.bind(this, function() {
|
|
this.workspacesView.addWorkspace();
|
|
}));
|
|
this._addButton._delegate = this._addButton;
|
|
this._addButton._delegate.acceptDrop = Lang.bind(this,
|
|
function(source, actor, x, y, time) {
|
|
return this.workspacesView._acceptNewWorkspaceDrop(source, actor, x, y, time);
|
|
});
|
|
this._addButton._delegate.handleDragOver = Lang.bind(this,
|
|
function(source, actor, x, y, time) {
|
|
return this.workspacesView._handleDragOverNewWorkspace(source, actor, x, y, time);
|
|
});
|
|
controls.add(this._addButton, { expand: true });
|
|
|
|
this.workspacesView = null;
|
|
this._nWorkspacesNotifyId = 0;
|
|
},
|
|
|
|
show: function() {
|
|
this._controlsContainer.show();
|
|
|
|
this._workspaces = [];
|
|
for (let i = 0; i < global.screen.n_workspaces; i++) {
|
|
let metaWorkspace = global.screen.get_workspace_by_index(i);
|
|
this._workspaces[i] = new Workspace.Workspace(metaWorkspace);
|
|
}
|
|
|
|
this._nWorkspacesNotifyId =
|
|
global.screen.connect('notify::n-workspaces',
|
|
Lang.bind(this, this._workspacesChanged));
|
|
|
|
let binAllocation = this._workspacesBin.allocation;
|
|
let binWidth = binAllocation.x2 - binAllocation.x1;
|
|
let binHeight = binAllocation.y2 - binAllocation.y1;
|
|
|
|
// Workspaces expect to have the same ratio as the screen, so take
|
|
// this into account when fitting the workspace into the bin
|
|
let width, height;
|
|
let binRatio = binWidth / binHeight;
|
|
let wsRatio = global.screen_width / global.screen_height;
|
|
if (wsRatio > binRatio) {
|
|
width = binWidth;
|
|
height = Math.floor(binWidth / wsRatio);
|
|
} else {
|
|
width = Math.floor(binHeight * wsRatio);
|
|
height = binHeight;
|
|
}
|
|
|
|
// Position workspaces as if they were parented to this._workspacesBin
|
|
let [x, y] = this._workspacesBin.get_transformed_position();
|
|
x = Math.floor(x + Math.abs(binWidth - width) / 2);
|
|
y = Math.floor(y + Math.abs(binHeight - height) / 2);
|
|
|
|
let newView = new WorkspacesView(width, height, x, y, this._workspaces);
|
|
|
|
if (this.workspacesView)
|
|
this.workspacesView.destroy();
|
|
this.workspacesView = newView;
|
|
|
|
this._workspaceIndicatorPanel.updateWorkspaces(this._workspaces);
|
|
|
|
this._nWorkspacesNotifyId =
|
|
global.screen.connect('notify::n-workspaces',
|
|
Lang.bind(this, this._workspacesChanged));
|
|
},
|
|
|
|
hide: function() {
|
|
this._controlsContainer.hide();
|
|
|
|
if (this._nWorkspacesNotifyId > 0)
|
|
global.screen.disconnect(this._nWorkspacesNotifyId);
|
|
this.workspacesView.destroy();
|
|
this.workspacesView = null;
|
|
for (let w = 0; w < this._workspaces.length; w++) {
|
|
this._workspaces[w].disconnectAll();
|
|
this._workspaces[w].destroy();
|
|
}
|
|
},
|
|
|
|
_workspacesChanged: function() {
|
|
let oldNumWorkspaces = this._workspaces.length;
|
|
let newNumWorkspaces = global.screen.n_workspaces;
|
|
let active = global.screen.get_active_workspace_index();
|
|
|
|
if (oldNumWorkspaces == newNumWorkspaces)
|
|
return;
|
|
|
|
let lostWorkspaces = [];
|
|
if (newNumWorkspaces > oldNumWorkspaces) {
|
|
// Assume workspaces are only added at the end
|
|
for (let w = oldNumWorkspaces; w < newNumWorkspaces; w++) {
|
|
let metaWorkspace = global.screen.get_workspace_by_index(w);
|
|
this._workspaces[w] = new Workspace.Workspace(metaWorkspace);
|
|
}
|
|
} else {
|
|
// Assume workspaces are only removed sequentially
|
|
// (e.g. 2,3,4 - not 2,4,7)
|
|
let removedIndex;
|
|
let removedNum = oldNumWorkspaces - newNumWorkspaces;
|
|
for (let w = 0; w < oldNumWorkspaces; w++) {
|
|
let metaWorkspace = global.screen.get_workspace_by_index(w);
|
|
if (this._workspaces[w].metaWorkspace != metaWorkspace) {
|
|
removedIndex = w;
|
|
break;
|
|
}
|
|
}
|
|
|
|
lostWorkspaces = this._workspaces.splice(removedIndex,
|
|
removedNum);
|
|
|
|
// Don't let the user try to select this workspace as it's
|
|
// making its exit.
|
|
for (let l = 0; l < lostWorkspaces.length; l++)
|
|
lostWorkspaces[l].setReactive(false);
|
|
}
|
|
|
|
this.workspacesView.updateWorkspaces(oldNumWorkspaces,
|
|
newNumWorkspaces,
|
|
lostWorkspaces);
|
|
this._workspaceIndicatorPanel.updateWorkspaces(this._workspaces);
|
|
}
|
|
};
|
|
Signals.addSignalMethods(WorkspacesDisplay.prototype);
|