734 lines
27 KiB
JavaScript
734 lines
27 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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const Clutter = imports.gi.Clutter;
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const Gio = imports.gi.Gio;
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const GObject = imports.gi.GObject;
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const Lang = imports.lang;
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const Mainloop = imports.mainloop;
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const Meta = imports.gi.Meta;
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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 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 WorkspaceThumbnail = imports.ui.workspaceThumbnail;
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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 OVERRIDE_SCHEMA = 'org.gnome.shell.overrides';
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const WorkspacesView = new Lang.Class({
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Name: 'WorkspacesView',
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_init: function(workspaces) {
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this.actor = new St.Widget({ style_class: 'workspaces-view',
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reactive: true });
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// The actor itself isn't a drop target, so we don't want to pick on its area
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this.actor.set_size(0, 0);
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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._updateWorkspaceActors(false);
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}));
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this._width = 0;
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this._height = 0;
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this._x = 0;
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this._y = 0;
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this._spacing = 0;
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this._animating = false; // tweening
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this._scrolling = false; // swipe-scrolling
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this._animatingScroll = false; // programatically updating the adjustment
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this._zoomOut = false; // zoom to a larger area
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this._inDrag = false; // dragging a window
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this._settings = new Gio.Settings({ schema: OVERRIDE_SCHEMA });
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this._updateExtraWorkspacesId =
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this._settings.connect('changed::workspaces-only-on-primary',
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Lang.bind(this, this._updateExtraWorkspaces));
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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.actor.add_actor(this._workspaces[w].actor);
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this._workspaces[activeWorkspaceIndex].actor.raise_top();
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this._extraWorkspaces = [];
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this._updateExtraWorkspaces();
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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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for (let w = 0; w < this._workspaces.length; w++)
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this._workspaces[w].zoomToOverview();
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for (let w = 0; w < this._extraWorkspaces.length; w++)
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this._extraWorkspaces[w].zoomToOverview();
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}));
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this._overviewShownId =
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Main.overview.connect('shown',
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Lang.bind(this, function() {
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this.actor.set_clip(this._x, this._y,
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this._width, this._height);
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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._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._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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_updateExtraWorkspaces: function() {
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this._destroyExtraWorkspaces();
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if (!this._settings.get_boolean('workspaces-only-on-primary'))
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return;
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let monitors = Main.layoutManager.monitors;
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for (let i = 0; i < monitors.length; i++) {
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if (i == Main.layoutManager.primaryIndex)
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continue;
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let ws = new Workspace.Workspace(null, i);
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ws.setGeometry(monitors[i].x,
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monitors[i].y,
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monitors[i].width,
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monitors[i].height);
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global.overlay_group.add_actor(ws.actor);
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this._extraWorkspaces.push(ws);
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}
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},
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_destroyExtraWorkspaces: function() {
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for (let m = 0; m < this._extraWorkspaces.length; m++)
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this._extraWorkspaces[m].destroy();
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this._extraWorkspaces = [];
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},
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setGeometry: function(x, y, width, height) {
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if (this._x == x && this._y == y &&
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this._width == width && this._height == height)
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return;
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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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for (let i = 0; i < this._workspaces.length; i++)
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this._workspaces[i].setGeometry(x, y, width, height);
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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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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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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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activeWorkspace.actor.raise_top();
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this.actor.remove_clip();
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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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for (let w = 0; w < this._extraWorkspaces.length; w++)
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this._extraWorkspaces[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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syncStacking: function(stackIndices) {
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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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for (let i = 0; i < this._extraWorkspaces.length; i++)
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this._extraWorkspaces[i].syncStacking(stackIndices);
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},
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_scrollToActive: function() {
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let active = global.screen.get_active_workspace_index();
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this._updateWorkspaceActors(true);
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this._updateScrollAdjustment(active);
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},
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// Update workspace actors parameters
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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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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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let y = (w - active) * (this._height + this._spacing);
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if (showAnimation) {
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let params = { y: y,
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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_position(0, y);
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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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},
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_updateVisibility: function() {
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let active = global.screen.get_active_workspace_index();
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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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if (this._animating || this._scrolling) {
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workspace.actor.show();
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} else {
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if (this._inDrag)
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workspace.actor.visible = (Math.abs(w - active) <= 1);
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else
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workspace.actor.visible = (w == active);
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}
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}
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},
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_updateScrollAdjustment: function(index) {
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if (this._scrolling)
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return;
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this._animatingScroll = true;
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Tweener.addTween(this.scrollAdjustment, {
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value: index,
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time: WORKSPACE_SWITCH_TIME,
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transition: 'easeOutQuad',
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onComplete: Lang.bind(this,
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function() {
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this._animatingScroll = false;
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})
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});
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},
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updateWorkspaces: function(oldNumWorkspaces, newNumWorkspaces) {
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let active = global.screen.get_active_workspace_index();
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Tweener.addTween(this.scrollAdjustment,
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{ upper: newNumWorkspaces,
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time: WORKSPACE_SWITCH_TIME,
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transition: 'easeOutQuad'
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});
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if (newNumWorkspaces > oldNumWorkspaces) {
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for (let w = oldNumWorkspaces; w < newNumWorkspaces; w++) {
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this._workspaces[w].setGeometry(this._x, this._y,
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this._width, this._height);
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this.actor.add_actor(this._workspaces[w].actor);
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}
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this._updateWorkspaceActors(false);
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}
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},
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_activeWorkspaceChanged: function(wm, from, to, direction) {
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if (this._scrolling)
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return;
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this._scrollToActive();
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},
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_onDestroy: function() {
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this._destroyExtraWorkspaces();
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this.scrollAdjustment.run_dispose();
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Main.overview.disconnect(this._overviewShowingId);
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Main.overview.disconnect(this._overviewShownId);
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global.window_manager.disconnect(this._switchWorkspaceNotifyId);
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this._settings.disconnect(this._updateExtraWorkspacesId);
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if (this._inDrag)
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this._dragEnd();
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if (this._itemDragBeginId > 0) {
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Main.overview.disconnect(this._itemDragBeginId);
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this._itemDragBeginId = 0;
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}
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if (this._itemDragEndId > 0) {
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Main.overview.disconnect(this._itemDragEndId);
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this._itemDragEndId = 0;
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}
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if (this._windowDragBeginId > 0) {
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Main.overview.disconnect(this._windowDragBeginId);
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this._windowDragBeginId = 0;
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}
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if (this._windowDragEndId > 0) {
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Main.overview.disconnect(this._windowDragEndId);
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this._windowDragEndId = 0;
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}
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},
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_dragBegin: function() {
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if (this._scrolling)
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return;
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this._inDrag = true;
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this._firstDragMotion = true;
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this._dragMonitor = {
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dragMotion: Lang.bind(this, this._onDragMotion)
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};
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DND.addDragMonitor(this._dragMonitor);
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},
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_onDragMotion: function(dragEvent) {
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if (Main.overview.animationInProgress)
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return DND.DragMotionResult.CONTINUE;
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if (this._firstDragMotion) {
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this._firstDragMotion = false;
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for (let i = 0; i < this._workspaces.length; i++)
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this._workspaces[i].setReservedSlot(dragEvent.dragActor._delegate);
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for (let i = 0; i < this._extraWorkspaces.length; i++)
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this._extraWorkspaces[i].setReservedSlot(dragEvent.dragActor._delegate);
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}
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return DND.DragMotionResult.CONTINUE;
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},
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_dragEnd: function() {
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DND.removeDragMonitor(this._dragMonitor);
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this._inDrag = false;
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for (let i = 0; i < this._workspaces.length; i++)
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this._workspaces[i].setReservedSlot(null);
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for (let i = 0; i < this._extraWorkspaces.length; i++)
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this._extraWorkspaces[i].setReservedSlot(null);
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},
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startSwipeScroll: function() {
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this._scrolling = true;
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},
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endSwipeScroll: function() {
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this._scrolling = false;
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// Make sure title captions etc are shown as necessary
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this._scrollToActive();
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this._updateVisibility();
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},
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// sync the workspaces' positions to the value of the scroll adjustment
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// and change the active workspace if appropriate
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_onScroll: function(adj) {
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if (this._animatingScroll)
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return;
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let active = global.screen.get_active_workspace_index();
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let current = Math.round(adj.value);
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if (active != current) {
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if (!this._workspaces[current]) {
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// The current workspace was destroyed. This could happen
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// when you are on the last empty workspace, and consolidate
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// windows using the thumbnail bar.
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// In that case, the intended behavior is to stay on the empty
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// workspace, which is the last one, so pick it.
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current = this._workspaces.length - 1;
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}
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let metaWorkspace = this._workspaces[current].metaWorkspace;
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metaWorkspace.activate(global.get_current_time());
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}
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let last = this._workspaces.length - 1;
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let firstWorkspaceY = this._workspaces[0].actor.y;
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let lastWorkspaceY = this._workspaces[last].actor.y;
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let workspacesHeight = lastWorkspaceY - firstWorkspaceY;
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if (adj.upper == 1)
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return;
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let currentY = firstWorkspaceY;
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let newY = - adj.value / (adj.upper - 1) * workspacesHeight;
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let dy = newY - currentY;
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for (let i = 0; i < this._workspaces.length; i++) {
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this._workspaces[i].actor.visible = Math.abs(i - adj.value) <= 1;
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this._workspaces[i].actor.y += dy;
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}
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},
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_getWorkspaceIndexToRemove: function() {
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return global.screen.get_active_workspace_index();
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}
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});
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Signals.addSignalMethods(WorkspacesView.prototype);
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const WorkspacesDisplay = new Lang.Class({
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Name: 'WorkspacesDisplay',
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_init: function() {
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this.actor = new St.Widget({ clip_to_allocation: true });
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this.actor.connect('notify::allocation', Lang.bind(this, this._updateWorkspacesGeometry));
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this.actor.connect('parent-set', Lang.bind(this, this._parentSet));
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let clickAction = new Clutter.ClickAction()
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clickAction.connect('clicked', Lang.bind(this, function(action) {
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// Only switch to the workspace when there's no application
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// windows open. The problem is that it's too easy to miss
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// an app window and get the wrong one focused.
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if (action.get_button() == 1 &&
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this._getPrimaryView().getActiveWorkspace().isEmpty())
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Main.overview.hide();
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}));
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Main.overview.addAction(clickAction);
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this.actor.bind_property('mapped', clickAction, 'enabled', GObject.BindingFlags.SYNC_CREATE);
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let panAction = new Clutter.PanAction();
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panAction.connect('pan', Lang.bind(this, this._onPan));
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panAction.connect('gesture-begin', Lang.bind(this, function() {
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for (let i = 0; i < this._workspacesViews.length; i++)
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this._workspacesViews[i].startSwipeScroll();
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return true;
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}));
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panAction.connect('gesture-cancel', Lang.bind(this, function() {
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clickAction.release();
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for (let i = 0; i < this._workspacesViews.length; i++)
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this._workspacesViews[i].endSwipeScroll();
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}));
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panAction.connect('gesture-end', Lang.bind(this, function() {
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clickAction.release();
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for (let i = 0; i < this._workspacesViews.length; i++)
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this._workspacesViews[i].endSwipeScroll();
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}));
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Main.overview.addAction(panAction);
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this.actor.bind_property('mapped', panAction, 'enabled', GObject.BindingFlags.SYNC_CREATE);
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this._primaryIndex = Main.layoutManager.primaryIndex;
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this._workspacesViews = [];
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this._workspaces = [];
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this._primaryScrollAdjustment = null;
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this._settings = new Gio.Settings({ schema: OVERRIDE_SCHEMA });
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this._settings.connect('changed::workspaces-only-on-primary',
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Lang.bind(this,
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this._workspacesOnlyOnPrimaryChanged));
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this._workspacesOnlyOnPrimaryChanged();
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global.screen.connect('notify::n-workspaces',
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Lang.bind(this, this._workspacesChanged));
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this._switchWorkspaceNotifyId = 0;
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this._notifyOpacityId = 0;
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this._scrollEventId = 0;
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},
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_onPan: function(action) {
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let [dist, dx, dy] = action.get_motion_delta(0);
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let adjustment = this._scrollAdjustment;
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adjustment.value -= (dy / this.actor.height) * adjustment.page_size;
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return false;
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},
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show: function() {
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this._updateWorkspacesViews();
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this._restackedNotifyId =
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Main.overview.connect('windows-restacked',
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Lang.bind(this, this._onRestacked));
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if (this._scrollEventId == 0)
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this._scrollEventId = Main.overview.connect('scroll-event', Lang.bind(this, this._onScrollEvent));
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},
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zoomFromOverview: function() {
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for (let i = 0; i < this._workspacesViews.length; i++) {
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this._workspacesViews[i].hide();
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}
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},
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hide: function() {
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if (this._restackedNotifyId > 0){
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Main.overview.disconnect(this._restackedNotifyId);
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this._restackedNotifyId = 0;
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}
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if (this._scrollEventId > 0) {
|
|
Main.overview.disconnect(this._scrollEventId);
|
|
this._scrollEventId = 0;
|
|
}
|
|
|
|
for (let i = 0; i < this._workspacesViews.length; i++)
|
|
this._workspacesViews[i].destroy();
|
|
this._workspacesViews = [];
|
|
|
|
for (let i = 0; i < this._workspaces.length; i++)
|
|
for (let w = 0; w < this._workspaces[i].length; w++) {
|
|
this._workspaces[i][w].disconnectAll();
|
|
this._workspaces[i][w].destroy();
|
|
}
|
|
},
|
|
|
|
_workspacesOnlyOnPrimaryChanged: function() {
|
|
this._workspacesOnlyOnPrimary = this._settings.get_boolean('workspaces-only-on-primary');
|
|
|
|
if (!Main.overview.visible)
|
|
return;
|
|
|
|
this._updateWorkspacesViews();
|
|
},
|
|
|
|
_updateWorkspacesViews: function() {
|
|
for (let i = 0; i < this._workspacesViews.length; i++)
|
|
this._workspacesViews[i].destroy();
|
|
|
|
for (let i = 0; i < this._workspaces.length; i++)
|
|
for (let w = 0; w < this._workspaces[i].length; w++)
|
|
this._workspaces[i][w].destroy();
|
|
|
|
this._workspacesViews = [];
|
|
this._workspaces = [];
|
|
let monitors = Main.layoutManager.monitors;
|
|
for (let i = 0; i < monitors.length; i++) {
|
|
if (this._workspacesOnlyOnPrimary && i != this._primaryIndex)
|
|
continue; // we are only interested in the primary monitor
|
|
|
|
let monitorWorkspaces = [];
|
|
for (let w = 0; w < global.screen.n_workspaces; w++) {
|
|
let metaWorkspace = global.screen.get_workspace_by_index(w);
|
|
monitorWorkspaces.push(new Workspace.Workspace(metaWorkspace, i));
|
|
}
|
|
|
|
this._workspaces.push(monitorWorkspaces);
|
|
|
|
let view = new WorkspacesView(monitorWorkspaces);
|
|
view.actor.connect('scroll-event', Lang.bind(this, this._onScrollEvent));
|
|
if (this._workspacesOnlyOnPrimary || i == this._primaryIndex) {
|
|
this._scrollAdjustment = view.scrollAdjustment;
|
|
this._scrollAdjustment.connect('notify::value',
|
|
Lang.bind(this, this._scrollValueChanged));
|
|
}
|
|
this._workspacesViews.push(view);
|
|
}
|
|
|
|
this._updateWorkspacesGeometry();
|
|
|
|
for (let i = 0; i < this._workspacesViews.length; i++)
|
|
global.overlay_group.add_actor(this._workspacesViews[i].actor);
|
|
},
|
|
|
|
_scrollValueChanged: function() {
|
|
if (this._workspacesOnlyOnPrimary)
|
|
return;
|
|
|
|
for (let i = 0; i < this._workspacesViews.length; i++) {
|
|
if (i == this._primaryIndex)
|
|
continue;
|
|
|
|
let adjustment = this._workspacesViews[i].scrollAdjustment;
|
|
// the adjustments work in terms of workspaces, so the
|
|
// values map directly
|
|
adjustment.value = this._scrollAdjustment.value;
|
|
}
|
|
},
|
|
|
|
_getPrimaryView: function() {
|
|
if (!this._workspacesViews.length)
|
|
return null;
|
|
if (this._workspacesOnlyOnPrimary)
|
|
return this._workspacesViews[0];
|
|
else
|
|
return this._workspacesViews[this._primaryIndex];
|
|
},
|
|
|
|
activeWorkspaceHasMaximizedWindows: function() {
|
|
return this._getPrimaryView().getActiveWorkspace().hasMaximizedWindows();
|
|
},
|
|
|
|
_parentSet: function(actor, oldParent) {
|
|
if (oldParent && this._notifyOpacityId)
|
|
oldParent.disconnect(this._notifyOpacityId);
|
|
this._notifyOpacityId = 0;
|
|
|
|
Meta.later_add(Meta.LaterType.BEFORE_REDRAW, Lang.bind(this,
|
|
function() {
|
|
let newParent = this.actor.get_parent();
|
|
if (!newParent)
|
|
return;
|
|
|
|
// This is kinda hackish - we want the primary view to
|
|
// appear as parent of this.actor, though in reality it
|
|
// is added directly to overlay_group
|
|
this._notifyOpacityId = newParent.connect('notify::opacity',
|
|
Lang.bind(this, function() {
|
|
let opacity = this.actor.get_parent().opacity;
|
|
let primaryView = this._getPrimaryView();
|
|
if (!primaryView)
|
|
return;
|
|
primaryView.actor.opacity = opacity;
|
|
primaryView.actor.visible = opacity != 0;
|
|
}));
|
|
}));
|
|
},
|
|
|
|
_updateWorkspacesGeometry: function() {
|
|
if (!this._workspacesViews.length)
|
|
return;
|
|
|
|
let width = this.actor.allocation.x2 - this.actor.allocation.x1;
|
|
let height = this.actor.allocation.y2 - this.actor.allocation.y1;
|
|
|
|
let [x, y] = this.actor.get_transformed_position();
|
|
|
|
let monitors = Main.layoutManager.monitors;
|
|
let m = 0;
|
|
for (let i = 0; i < monitors.length; i++) {
|
|
if (i == this._primaryIndex) {
|
|
this._workspacesViews[m].setGeometry(x, y, width, height);
|
|
m++;
|
|
} else if (!this._workspacesOnlyOnPrimary) {
|
|
this._workspacesViews[m].setGeometry(monitors[i].x,
|
|
monitors[i].y,
|
|
monitors[i].width,
|
|
monitors[i].height);
|
|
m++;
|
|
}
|
|
}
|
|
},
|
|
|
|
_onRestacked: function(overview, stackIndices) {
|
|
for (let i = 0; i < this._workspacesViews.length; i++)
|
|
this._workspacesViews[i].syncStacking(stackIndices);
|
|
},
|
|
|
|
_workspacesChanged: function() {
|
|
if (!this._workspacesViews.length)
|
|
return;
|
|
|
|
let oldNumWorkspaces = this._workspaces[0].length;
|
|
let newNumWorkspaces = global.screen.n_workspaces;
|
|
let active = global.screen.get_active_workspace_index();
|
|
|
|
let lostWorkspaces = [];
|
|
if (newNumWorkspaces > oldNumWorkspaces) {
|
|
let monitors = Main.layoutManager.monitors;
|
|
let m = 0;
|
|
for (let i = 0; i < monitors.length; i++) {
|
|
if (this._workspacesOnlyOnPrimary &&
|
|
i != this._primaryIndex)
|
|
continue;
|
|
|
|
// 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[m][w] =
|
|
new Workspace.Workspace(metaWorkspace, i);
|
|
}
|
|
m++;
|
|
}
|
|
} 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[0][w].metaWorkspace != metaWorkspace) {
|
|
removedIndex = w;
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (let i = 0; i < this._workspaces.length; i++) {
|
|
lostWorkspaces = this._workspaces[i].splice(removedIndex,
|
|
removedNum);
|
|
|
|
for (let l = 0; l < lostWorkspaces.length; l++) {
|
|
lostWorkspaces[l].disconnectAll();
|
|
lostWorkspaces[l].destroy();
|
|
}
|
|
}
|
|
}
|
|
|
|
for (let i = 0; i < this._workspacesViews.length; i++)
|
|
this._workspacesViews[i].updateWorkspaces(oldNumWorkspaces,
|
|
newNumWorkspaces);
|
|
},
|
|
|
|
_onScrollEvent: function(actor, event) {
|
|
if (!this.actor.mapped)
|
|
return false;
|
|
switch (event.get_scroll_direction()) {
|
|
case Clutter.ScrollDirection.UP:
|
|
Main.wm.actionMoveWorkspace(Meta.MotionDirection.UP);
|
|
return true;
|
|
case Clutter.ScrollDirection.DOWN:
|
|
Main.wm.actionMoveWorkspace(Meta.MotionDirection.DOWN);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
});
|
|
Signals.addSignalMethods(WorkspacesDisplay.prototype);
|