e330c5ea17
There was lots of fixed positioning in the Panel; now it is completely dynamic, and width/height is driven from main.js. We still have a global constant Panel.PANEL_HEIGHT, but this is a big step towards eliminating it. Also, this avoids overdraw in the "way too many tray icons" case. The clock will shift left.
407 lines
15 KiB
JavaScript
407 lines
15 KiB
JavaScript
/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
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const Big = imports.gi.Big;
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const Clutter = imports.gi.Clutter;
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const Gio = imports.gi.Gio;
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const Gtk = imports.gi.Gtk;
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const Mainloop = imports.mainloop;
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const Shell = imports.gi.Shell;
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const Signals = imports.signals;
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const Lang = imports.lang;
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const AppDisplay = imports.ui.appDisplay;
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const DocDisplay = imports.ui.docDisplay;
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const GenericDisplay = imports.ui.genericDisplay;
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const Link = imports.ui.link;
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const Main = imports.ui.main;
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const Panel = imports.ui.panel;
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const Dash = imports.ui.dash;
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const Tweener = imports.ui.tweener;
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const Workspaces = imports.ui.workspaces;
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const ROOT_OVERVIEW_COLOR = new Clutter.Color();
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ROOT_OVERVIEW_COLOR.from_pixel(0x000000ff);
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// Time for initial animation going into Overview mode
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const ANIMATION_TIME = 0.25;
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// We divide the screen into a grid of rows and columns, which we use
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// to help us position the Overview components, such as the side panel
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// that lists applications and documents, the workspaces display, and
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// the button for adding additional workspaces.
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// In the regular mode, the side panel takes up one column on the left,
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// and the workspaces display takes up the remaining columns.
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// In the expanded side panel display mode, the side panel takes up two
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// columns, and the workspaces display slides all the way to the right,
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// being visible only in the last quarter of the right-most column.
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// In the future, this mode will have more components, such as a display
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// of documents which were recently opened with a given application, which
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// will take up the remaining sections of the display.
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const WIDE_SCREEN_CUT_OFF_RATIO = 1.4;
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const COLUMNS_REGULAR_SCREEN = 4;
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const ROWS_REGULAR_SCREEN = 8;
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const COLUMNS_WIDE_SCREEN = 5;
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const ROWS_WIDE_SCREEN = 10;
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const DEFAULT_PADDING = 4;
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// Padding around workspace grid / Spacing between Dash and Workspaces
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const WORKSPACE_GRID_PADDING = 12;
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const COLUMNS_FOR_WORKSPACES_REGULAR_SCREEN = 3;
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const ROWS_FOR_WORKSPACES_REGULAR_SCREEN = 6;
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const COLUMNS_FOR_WORKSPACES_WIDE_SCREEN = 4;
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const ROWS_FOR_WORKSPACES_WIDE_SCREEN = 8;
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// A multi-state; PENDING is used during animations
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const STATE_ACTIVE = true;
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const STATE_PENDING_INACTIVE = false;
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const STATE_INACTIVE = false;
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const SHADOW_COLOR = new Clutter.Color();
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SHADOW_COLOR.from_pixel(0x00000033);
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const TRANSPARENT_COLOR = new Clutter.Color();
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TRANSPARENT_COLOR.from_pixel(0x00000000);
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const SHADOW_WIDTH = 6;
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const NUMBER_OF_SECTIONS_IN_SEARCH = 2;
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let wideScreen = false;
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let displayGridColumnWidth = null;
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let displayGridRowHeight = null;
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function Overview() {
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this._init();
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}
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Overview.prototype = {
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_init : function() {
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let me = this;
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let global = Shell.Global.get();
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this._group = new Clutter.Group();
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this._group._delegate = this;
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this.visible = false;
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this.animationInProgress = false;
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this._hideInProgress = false;
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this._recalculateGridSizes();
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this._activeDisplayPane = null;
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// Used to catch any clicks when we have an active pane; see the comments
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// in addPane below.
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this._transparentBackground = new Clutter.Rectangle({ opacity: 0,
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reactive: true });
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this._group.add_actor(this._transparentBackground);
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// Background color for the Overview
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this._backOver = new Clutter.Rectangle({ color: ROOT_OVERVIEW_COLOR });
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this._group.add_actor(this._backOver);
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this._group.hide();
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global.overlay_group.add_actor(this._group);
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// TODO - recalculate everything when desktop size changes
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this._dash = new Dash.Dash(displayGridColumnWidth);
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this._group.add_actor(this._dash.actor);
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// Container to hold popup pane chrome.
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this._paneContainer = new Big.Box({ orientation: Big.BoxOrientation.HORIZONTAL,
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spacing: 6
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});
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// Note here we explicitly don't set the paneContainer to be reactive yet; that's done
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// inside the notify::visible handler on panes.
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this._paneContainer.connect('button-release-event', Lang.bind(this, function(background) {
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this._activeDisplayPane.close();
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return true;
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}));
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this._group.add_actor(this._paneContainer);
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this._transparentBackground.lower_bottom();
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this._paneContainer.lower_bottom();
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this._workspaces = null;
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},
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_recalculateGridSizes: function () {
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let global = Shell.Global.get();
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wideScreen = (global.screen_width/global.screen_height > WIDE_SCREEN_CUT_OFF_RATIO);
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// We divide the screen into an imaginary grid which helps us determine the layout of
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// different visual components.
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if (wideScreen) {
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displayGridColumnWidth = global.screen_width / COLUMNS_WIDE_SCREEN;
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displayGridRowHeight = global.screen_height / ROWS_WIDE_SCREEN;
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} else {
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displayGridColumnWidth = global.screen_width / COLUMNS_REGULAR_SCREEN;
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displayGridRowHeight = global.screen_height / ROWS_REGULAR_SCREEN;
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}
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},
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relayout: function () {
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let global = Shell.Global.get();
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let contentHeight = global.screen_height - Panel.PANEL_HEIGHT;
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this._dash.actor.set_position(0, Panel.PANEL_HEIGHT);
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this._dash.actor.set_size(displayGridColumnWidth, contentHeight);
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this._backOver.set_position(0, Panel.PANEL_HEIGHT);
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this._backOver.set_size(global.screen_width, contentHeight);
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this._paneContainer.set_position(this._dash.actor.x + this._dash.actor.width + DEFAULT_PADDING,
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Panel.PANEL_HEIGHT);
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// Dynamic width
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this._paneContainer.height = contentHeight;
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this._transparentBackground.set_position(this._paneContainer.x, this._paneContainer.y);
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this._transparentBackground.set_size(global.screen_width - this._paneContainer.x,
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this._paneContainer.height);
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},
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addPane: function (pane) {
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pane.actor.width = displayGridColumnWidth * 2;
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this._paneContainer.append(pane.actor, Big.BoxPackFlags.NONE);
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// When a pane is displayed, we raise the transparent background to the top
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// and connect to button-release-event on it, then raise the pane above that.
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// The idea here is that clicking anywhere outside the pane should close it.
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// When the active pane is closed, undo the effect.
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let backgroundEventId = null;
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pane.connect('open-state-changed', Lang.bind(this, function (pane, isOpen) {
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if (isOpen) {
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this._activeDisplayPane = pane;
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this._transparentBackground.raise_top();
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this._paneContainer.raise_top();
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if (backgroundEventId != null)
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this._transparentBackground.disconnect(backgroundEventId);
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backgroundEventId = this._transparentBackground.connect('button-release-event', Lang.bind(this, function () {
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this._activeDisplayPane.close();
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return true;
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}));
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} else if (pane == this._activeDisplayPane) {
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this._activeDisplayPane = null;
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if (backgroundEventId != null) {
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this._transparentBackground.disconnect(backgroundEventId);
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backgroundEventId = null;
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}
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this._transparentBackground.lower_bottom();
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this._paneContainer.lower_bottom();
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}
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}));
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},
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//// Draggable target interface ////
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// Closes any active panes if a GenericDisplayItem is being
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// dragged over the Overview, i.e. as soon as it starts being dragged.
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// This allows the user to place the item on any workspace.
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handleDragOver : function(source, actor, x, y, time) {
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if (source instanceof GenericDisplay.GenericDisplayItem
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|| source instanceof AppDisplay.WellDisplayItem) {
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if (this._activeDisplayPane != null)
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this._activeDisplayPane.close();
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return true;
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}
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return false;
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},
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//// Public methods ////
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// Returns the scale the Overview has when we just start zooming out
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// to overview mode. That is, when just the active workspace is showing.
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getZoomedInScale : function() {
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return 1 / this._workspaces.getScale();
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},
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// Returns the position the Overview has when we just start zooming out
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// to overview mode. That is, when just the active workspace is showing.
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getZoomedInPosition : function() {
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let [posX, posY] = this._workspaces.getActiveWorkspacePosition();
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let scale = this.getZoomedInScale();
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return [- posX * scale, - posY * scale];
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},
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// Returns the current scale of the Overview.
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getScale : function() {
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return this._group.scaleX;
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},
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// Returns the current position of the Overview.
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getPosition : function() {
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return [this._group.x, this._group.y];
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},
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show : function() {
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if (this.visible)
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return;
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if (!Main.startModal())
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return;
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this.visible = true;
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this.animationInProgress = true;
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let global = Shell.Global.get();
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let screenWidth = global.screen_width;
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let screenHeight = global.screen_height;
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this._dash.show();
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let columnsUsed = wideScreen ? COLUMNS_FOR_WORKSPACES_WIDE_SCREEN : COLUMNS_FOR_WORKSPACES_REGULAR_SCREEN;
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let rowsUsed = wideScreen ? ROWS_FOR_WORKSPACES_WIDE_SCREEN : ROWS_FOR_WORKSPACES_REGULAR_SCREEN;
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let workspacesWidth = displayGridColumnWidth * columnsUsed - WORKSPACE_GRID_PADDING * 2;
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// We scale the vertical padding by (screenHeight / screenWidth) so that the workspace preserves its aspect ratio.
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let workspacesHeight = displayGridRowHeight * rowsUsed - WORKSPACE_GRID_PADDING * (screenHeight / screenWidth) * 2;
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let workspacesX = displayGridColumnWidth + WORKSPACE_GRID_PADDING;
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let workspacesY = displayGridRowHeight + WORKSPACE_GRID_PADDING * (screenHeight / screenWidth);
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// place the 'Add Workspace' button in the bottom row of the grid
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let addButtonSize = Math.floor(displayGridRowHeight * 3/5);
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let addButtonX = workspacesX + workspacesWidth - addButtonSize;
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let addButtonY = screenHeight - Math.floor(displayGridRowHeight * 4/5);
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this._workspaces = new Workspaces.Workspaces(workspacesWidth, workspacesHeight, workspacesX, workspacesY,
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addButtonSize, addButtonX, addButtonY);
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this._group.add_actor(this._workspaces.actor);
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// All the the actors in the window group are completely obscured,
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// hiding the group holding them while the Overview is displayed greatly
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// increases performance of the Overview especially when there are many
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// windows visible.
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//
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// If we switched to displaying the actors in the Overview rather than
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// clones of them, this would obviously no longer be necessary.
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global.window_group.hide();
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this._group.show();
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// Create a zoom out effect. First scale the Overview group up and
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// position it so that the active workspace fills up the whole screen,
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// then transform the group to its normal dimensions and position.
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// The opposite transition is used in hide().
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this._group.scaleX = this._group.scaleY = this.getZoomedInScale();
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[this._group.x, this._group.y] = this.getZoomedInPosition();
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Tweener.addTween(this._group,
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{ x: 0,
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y: 0,
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scaleX: 1,
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scaleY: 1,
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transition: 'easeOutQuad',
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time: ANIMATION_TIME,
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onComplete: this._showDone,
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onCompleteScope: this
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});
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// Make Dash fade in so that it doesn't appear to big.
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this._dash.actor.opacity = 0;
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Tweener.addTween(this._dash.actor,
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{ opacity: 255,
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transition: 'easeOutQuad',
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time: ANIMATION_TIME
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});
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this.emit('showing');
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},
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hide : function() {
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if (!this.visible || this._hideInProgress)
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return;
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let global = Shell.Global.get();
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this.animationInProgress = true;
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this._hideInProgress = true;
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if (this._activeDisplayPane != null)
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this._activeDisplayPane.close();
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this._workspaces.hide();
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// Create a zoom in effect by transforming the Overview group so that
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// the active workspace fills up the whole screen. The opposite
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// transition is used in show().
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let scale = this.getZoomedInScale();
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let [posX, posY] = this.getZoomedInPosition();
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Tweener.addTween(this._group,
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{ x: posX,
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y: posY,
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scaleX: scale,
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scaleY: scale,
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transition: 'easeOutQuad',
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time: ANIMATION_TIME,
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onComplete: this._hideDone,
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onCompleteScope: this
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});
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// Make Dash fade out so that it doesn't appear to big.
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Tweener.addTween(this._dash.actor,
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{ opacity: 0,
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transition: 'easeOutQuad',
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time: ANIMATION_TIME
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});
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this.emit('hiding');
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},
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toggle: function() {
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if (this.visible)
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this.hide();
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else
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this.show();
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},
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/**
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* activateWindow:
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* @metaWindow: A #MetaWindow
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* @time: Event timestamp integer
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*
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* Make the given MetaWindow be the focus window, switching
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* to the workspace it's on if necessary. This function
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* should only be used when the Overview is currently active;
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* outside of that, use the relevant methods on MetaDisplay.
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*/
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activateWindow: function (metaWindow, time) {
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this._workspaces.activateWindowFromOverview(metaWindow, time);
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this.hide();
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},
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//// Private methods ////
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_showDone: function() {
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if (this._hideInProgress)
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return;
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this.animationInProgress = false;
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this.emit('shown');
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},
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_hideDone: function() {
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let global = Shell.Global.get();
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global.window_group.show();
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this._workspaces.destroy();
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this._workspaces = null;
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this._dash.hide();
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this._group.hide();
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this.visible = false;
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this.animationInProgress = false;
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this._hideInProgress = false;
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Main.endModal();
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this.emit('hidden');
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}
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};
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Signals.addSignalMethods(Overview.prototype);
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