1713 lines
60 KiB
JavaScript
1713 lines
60 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 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 Pango = imports.gi.Pango;
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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 Lightbox = imports.ui.lightbox;
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const Main = imports.ui.main;
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const Overview = imports.ui.overview;
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const Panel = imports.ui.panel;
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const Tweener = imports.ui.tweener;
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const FOCUS_ANIMATION_TIME = 0.15;
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const WINDOW_DND_SIZE = 256;
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const SCROLL_SCALE_AMOUNT = 100 / 5;
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const WINDOW_CLONE_MAXIMUM_SCALE = 0.7;
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const LIGHTBOX_FADE_TIME = 0.1;
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const CLOSE_BUTTON_FADE_TIME = 0.1;
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const DRAGGING_WINDOW_OPACITY = 100;
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const BUTTON_LAYOUT_SCHEMA = 'org.gnome.shell.overrides';
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const BUTTON_LAYOUT_KEY = 'button-layout';
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// When calculating a layout, we calculate the scale of windows and the percent
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// of the available area the new layout uses. If the values for the new layout,
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// when weighted with the values as below, are worse than the previous layout's,
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// we stop looking for a new layout and use the previous layout.
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// Otherwise, we keep looking for a new layout.
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const LAYOUT_SCALE_WEIGHT = 1;
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const LAYOUT_SPACE_WEIGHT = 0.1;
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function _interpolate(start, end, step) {
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return start + (end - start) * step;
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}
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function _clamp(value, min, max) {
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return Math.max(min, Math.min(max, value));
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}
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const ScaledPoint = new Lang.Class({
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Name: 'ScaledPoint',
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_init: function(x, y, scaleX, scaleY) {
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[this.x, this.y, this.scaleX, this.scaleY] = arguments;
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},
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getPosition : function() {
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return [this.x, this.y];
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},
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getScale : function() {
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return [this.scaleX, this.scaleY];
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},
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setPosition : function(x, y) {
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[this.x, this.y] = arguments;
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},
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setScale : function(scaleX, scaleY) {
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[this.scaleX, this.scaleY] = arguments;
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},
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interpPosition : function(other, step) {
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return [_interpolate(this.x, other.x, step),
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_interpolate(this.y, other.y, step)];
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},
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interpScale : function(other, step) {
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return [_interpolate(this.scaleX, other.scaleX, step),
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_interpolate(this.scaleY, other.scaleY, step)];
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}
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});
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const WindowClone = new Lang.Class({
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Name: 'WindowClone',
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_init : function(realWindow, workspace) {
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this.realWindow = realWindow;
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this.metaWindow = realWindow.meta_window;
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this.metaWindow._delegate = this;
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this._workspace = workspace;
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let [borderX, borderY] = this._getInvisibleBorderPadding();
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this._windowClone = new Clutter.Clone({ source: realWindow.get_texture(),
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x: -borderX,
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y: -borderY });
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// We expect this.actor to be used for all interaction rather than
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// this._windowClone; as the former is reactive and the latter
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// is not, this just works for most cases. However, for DND all
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// actors are picked, so DND operations would operate on the clone.
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// To avoid this, we hide it from pick.
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Shell.util_set_hidden_from_pick(this._windowClone, true);
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this.origX = realWindow.x + borderX;
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this.origY = realWindow.y + borderY;
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let outerRect = realWindow.meta_window.get_outer_rect();
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// The MetaShapedTexture that we clone has a size that includes
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// the invisible border; this is inconvenient; rather than trying
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// to compensate all over the place we insert a ClutterGroup into
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// the hierarchy that is sized to only the visible portion.
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this.actor = new Clutter.Group({ reactive: true,
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x: this.origX,
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y: this.origY,
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width: outerRect.width,
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height: outerRect.height });
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this.actor.add_actor(this._windowClone);
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this.actor._delegate = this;
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this._stackAbove = null;
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this._sizeChangedId = this.realWindow.connect('size-changed',
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Lang.bind(this, this._onRealWindowSizeChanged));
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this._realWindowDestroyId = this.realWindow.connect('destroy',
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Lang.bind(this, this._disconnectRealWindowSignals));
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let clickAction = new Clutter.ClickAction();
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clickAction.connect('clicked', Lang.bind(this, this._onClicked));
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clickAction.connect('long-press', Lang.bind(this, this._onLongPress));
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this.actor.add_action(clickAction);
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this.actor.connect('scroll-event',
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Lang.bind(this, this._onScroll));
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this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
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this.actor.connect('leave-event',
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Lang.bind(this, this._onLeave));
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this._draggable = DND.makeDraggable(this.actor,
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{ restoreOnSuccess: true,
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manualMode: true,
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dragActorMaxSize: WINDOW_DND_SIZE,
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dragActorOpacity: DRAGGING_WINDOW_OPACITY });
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this._draggable.connect('drag-begin', Lang.bind(this, this._onDragBegin));
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this._draggable.connect('drag-cancelled', Lang.bind(this, this._onDragCancelled));
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this._draggable.connect('drag-end', Lang.bind(this, this._onDragEnd));
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this.inDrag = false;
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this._windowIsZooming = false;
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this._zooming = false;
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this._selected = false;
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},
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get slot() {
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let x, y, w, h;
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if (this.inDrag) {
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x = this.dragOrigX;
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y = this.dragOrigY;
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w = this.actor.width * this.dragOrigScale;
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h = this.actor.height * this.dragOrigScale;
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} else {
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x = this.actor.x;
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y = this.actor.y;
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w = this.actor.width * this.actor.scale_x;
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h = this.actor.height * this.actor.scale_y;
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}
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return [x, y, w, h];
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},
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setStackAbove: function (actor) {
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this._stackAbove = actor;
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if (this.inDrag || this._zooming)
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// We'll fix up the stack after the drag/zooming
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return;
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if (this._stackAbove == null)
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this.actor.lower_bottom();
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else
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this.actor.raise(this._stackAbove);
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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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zoomFromOverview: function() {
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if (this._zooming) {
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// If the user clicked on the zoomed window, or we are
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// returning there anyways, then we can zoom right to the
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// window, but if we are going to some other window, then
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// we need to cancel the zoom before animating, or it
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// will look funny.
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if (!this._selected &&
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this.metaWindow != global.display.focus_window)
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this._zoomEnd();
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}
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},
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_disconnectRealWindowSignals: function() {
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if (this._sizeChangedId > 0)
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this.realWindow.disconnect(this._sizeChangedId);
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this._sizeChangedId = 0;
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if (this._realWindowDestroyId > 0)
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this.realWindow.disconnect(this._realWindowDestroyId);
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this._realWindowDestroyId = 0;
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},
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_getInvisibleBorderPadding: function() {
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// We need to adjust the position of the actor because of the
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// consequences of invisible borders -- in reality, the texture
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// has an extra set of "padding" around it that we need to trim
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// down.
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// The outer rect paradoxically is the smaller rectangle,
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// containing the positions of the visible frame. The input
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// rect contains everything, including the invisible border
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// padding.
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let outerRect = this.metaWindow.get_outer_rect();
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let inputRect = this.metaWindow.get_input_rect();
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let [borderX, borderY] = [outerRect.x - inputRect.x,
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outerRect.y - inputRect.y];
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return [borderX, borderY];
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},
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_onRealWindowSizeChanged: function() {
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let [borderX, borderY] = this._getInvisibleBorderPadding();
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let outerRect = this.metaWindow.get_outer_rect();
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this.actor.set_size(outerRect.width, outerRect.height);
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this._windowClone.set_position(-borderX, -borderY);
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this.emit('size-changed');
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},
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_onDestroy: function() {
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this._disconnectRealWindowSignals();
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this.metaWindow._delegate = null;
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this.actor._delegate = null;
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if (this._zoomLightbox)
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this._zoomLightbox.destroy();
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if (this.inDrag) {
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this.emit('drag-end');
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this.inDrag = false;
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}
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this.disconnectAll();
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},
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_onLeave: function (actor, event) {
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if (this._zoomStep)
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this._zoomEnd();
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},
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_onScroll : function (actor, event) {
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let direction = event.get_scroll_direction();
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if (direction == Clutter.ScrollDirection.UP) {
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if (this._zoomStep == undefined)
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this._zoomStart();
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if (this._zoomStep < 100) {
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this._zoomStep += SCROLL_SCALE_AMOUNT;
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this._zoomUpdate();
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}
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} else if (direction == Clutter.ScrollDirection.DOWN) {
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if (this._zoomStep > 0) {
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this._zoomStep -= SCROLL_SCALE_AMOUNT;
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this._zoomStep = Math.max(0, this._zoomStep);
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this._zoomUpdate();
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}
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if (this._zoomStep <= 0.0)
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this._zoomEnd();
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}
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},
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_zoomUpdate : function () {
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[this.actor.x, this.actor.y] = this._zoomGlobalOrig.interpPosition(this._zoomTarget, this._zoomStep / 100);
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[this.actor.scale_x, this.actor.scale_y] = this._zoomGlobalOrig.interpScale(this._zoomTarget, this._zoomStep / 100);
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let [width, height] = this.actor.get_transformed_size();
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let monitorIndex = this.metaWindow.get_monitor();
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let monitor = Main.layoutManager.monitors[monitorIndex];
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let availArea = new Meta.Rectangle({ x: monitor.x,
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y: monitor.y,
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width: monitor.width,
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height: monitor.height });
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if (monitorIndex == Main.layoutManager.primaryIndex) {
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availArea.y += Main.panel.actor.height;
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availArea.height -= Main.panel.actor.height;
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}
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this.actor.x = _clamp(this.actor.x, availArea.x, availArea.x + availArea.width - width);
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this.actor.y = _clamp(this.actor.y, availArea.y, availArea.y + availArea.height - height);
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},
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_zoomStart : function () {
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this._zooming = true;
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this.emit('zoom-start');
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if (!this._zoomLightbox)
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this._zoomLightbox = new Lightbox.Lightbox(Main.uiGroup,
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{ fadeInTime: LIGHTBOX_FADE_TIME,
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fadeOutTime: LIGHTBOX_FADE_TIME });
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this._zoomLightbox.show();
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this._zoomLocalOrig = new ScaledPoint(this.actor.x, this.actor.y, this.actor.scale_x, this.actor.scale_y);
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this._zoomGlobalOrig = new ScaledPoint();
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let parent = this._origParent = this.actor.get_parent();
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let [width, height] = this.actor.get_transformed_size();
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this._zoomGlobalOrig.setPosition.apply(this._zoomGlobalOrig, this.actor.get_transformed_position());
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this._zoomGlobalOrig.setScale(width / this.actor.width, height / this.actor.height);
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this.actor.reparent(Main.uiGroup);
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this._zoomLightbox.highlight(this.actor);
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[this.actor.x, this.actor.y] = this._zoomGlobalOrig.getPosition();
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[this.actor.scale_x, this.actor.scale_y] = this._zoomGlobalOrig.getScale();
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this.actor.raise_top();
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this._zoomTarget = new ScaledPoint(0, 0, 1.0, 1.0);
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this._zoomTarget.setPosition(this.actor.x - (this.actor.width - width) / 2, this.actor.y - (this.actor.height - height) / 2);
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this._zoomStep = 0;
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this._zoomUpdate();
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},
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_zoomEnd : function () {
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this._zooming = false;
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this.emit('zoom-end');
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this.actor.reparent(this._origParent);
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if (this._stackAbove == null)
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this.actor.lower_bottom();
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// If the workspace has been destroyed while we were reparented to
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// the stage, _stackAbove will be unparented and we can't raise our
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// actor above it - as we are bound to be destroyed anyway in that
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// case, we can skip that step
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else if (this._stackAbove.get_parent())
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this.actor.raise(this._stackAbove);
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[this.actor.x, this.actor.y] = this._zoomLocalOrig.getPosition();
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[this.actor.scale_x, this.actor.scale_y] = this._zoomLocalOrig.getScale();
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this._zoomLightbox.hide();
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this._zoomLocalPosition = undefined;
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this._zoomLocalScale = undefined;
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this._zoomGlobalPosition = undefined;
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this._zoomGlobalScale = undefined;
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this._zoomTargetPosition = undefined;
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this._zoomStep = undefined;
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},
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_onClicked: function(action, actor) {
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this._selected = true;
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this.emit('selected', global.get_current_time());
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},
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_onLongPress: function(action, actor, state) {
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// Take advantage of the Clutter policy to consider
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// a long-press canceled when the pointer movement
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// exceeds dnd-drag-threshold to manually start the drag
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if (state == Clutter.LongPressState.CANCEL) {
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// A click cancels a long-press before any click handler is
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// run - make sure to not start a drag in that case
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Meta.later_add(Meta.LaterType.BEFORE_REDRAW, Lang.bind(this,
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function() {
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if (this._selected)
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return;
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let [x, y] = action.get_coords();
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action.release();
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this._draggable.startDrag(x, y, global.get_current_time());
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}));
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}
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return true;
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},
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_onDragBegin : function (draggable, time) {
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if (this._zooming)
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this._zoomEnd();
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[this.dragOrigX, this.dragOrigY] = this.actor.get_position();
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this.dragOrigScale = this.actor.scale_x;
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this.inDrag = true;
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this.emit('drag-begin');
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},
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handleDragOver : function(source, actor, x, y, time) {
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return this._workspace.handleDragOver(source, actor, x, y, time);
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},
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acceptDrop : function(source, actor, x, y, time) {
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this._workspace.acceptDrop(source, actor, x, y, time);
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},
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_onDragCancelled : function (draggable, time) {
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this.emit('drag-cancelled');
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},
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_onDragEnd : function (draggable, time, snapback) {
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this.inDrag = false;
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// We may not have a parent if DnD completed successfully, in
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// which case our clone will shortly be destroyed and replaced
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// with a new one on the target workspace.
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if (this.actor.get_parent() != null) {
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if (this._stackAbove == null)
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this.actor.lower_bottom();
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else
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this.actor.raise(this._stackAbove);
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}
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this.emit('drag-end');
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}
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});
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Signals.addSignalMethods(WindowClone.prototype);
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/**
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* @windowClone: Corresponding window clone
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* @parentActor: The actor which will be the parent of all overlay items
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* such as app icon and window caption
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*/
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const WindowOverlay = new Lang.Class({
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Name: 'WindowOverlay',
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_init : function(windowClone, parentActor) {
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let metaWindow = windowClone.metaWindow;
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this._windowClone = windowClone;
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this._parentActor = parentActor;
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this._hidden = false;
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let title = new St.Label({ style_class: 'window-caption',
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text: metaWindow.title });
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title.clutter_text.ellipsize = Pango.EllipsizeMode.END;
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title._spacing = 0;
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this._updateCaptionId = metaWindow.connect('notify::title',
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Lang.bind(this, function(w) {
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this.title.text = w.title;
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// we need this for the next call to get_preferred_width
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// to return useful results
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this.title.set_size(-1, -1);
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this._repositionSelf();
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}));
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let button = new St.Button({ style_class: 'window-close' });
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button._overlap = 0;
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this._idleToggleCloseId = 0;
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button.connect('clicked', Lang.bind(this, this._closeWindow));
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windowClone.actor.connect('destroy', Lang.bind(this, this._onDestroy));
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windowClone.actor.connect('enter-event',
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Lang.bind(this, this._onEnter));
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windowClone.actor.connect('leave-event',
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Lang.bind(this, this._onLeave));
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this._windowAddedId = 0;
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windowClone.connect('zoom-start', Lang.bind(this, this.hide));
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windowClone.connect('zoom-end', Lang.bind(this, this.show));
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button.hide();
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this.title = title;
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this.closeButton = button;
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parentActor.add_actor(this.title);
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parentActor.add_actor(this.closeButton);
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title.connect('style-changed',
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Lang.bind(this, this._onStyleChanged));
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button.connect('style-changed',
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Lang.bind(this, this._onStyleChanged));
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// force a style change if we are already on a stage - otherwise
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// the signal will be emitted normally when we are added
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if (parentActor.get_stage())
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this._onStyleChanged();
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},
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hide: function() {
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this._hidden = true;
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this.closeButton.hide();
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this.title.hide();
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},
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show: function() {
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this._hidden = false;
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if (this._windowClone.actor.has_pointer)
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this.closeButton.show();
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this.title.show();
|
|
},
|
|
|
|
fadeIn: function() {
|
|
if (!this._hidden)
|
|
return;
|
|
|
|
this.show();
|
|
this.title.opacity = 0;
|
|
this._parentActor.raise_top();
|
|
Tweener.addTween(this.title,
|
|
{ opacity: 255,
|
|
time: CLOSE_BUTTON_FADE_TIME,
|
|
transition: 'easeOutQuad' });
|
|
},
|
|
|
|
chromeHeights: function () {
|
|
return [this.closeButton.height - this.closeButton._overlap,
|
|
this.title.height + this.title._spacing];
|
|
},
|
|
|
|
_repositionSelf: function() {
|
|
let [cloneX, cloneY, cloneWidth, cloneHeight] = this._windowClone.slot;
|
|
this.updatePositions(cloneX, cloneY, cloneWidth, cloneHeight, false);
|
|
},
|
|
|
|
/**
|
|
* @cloneX: x position of windowClone
|
|
* @cloneY: y position of windowClone
|
|
* @cloneWidth: width of windowClone
|
|
* @cloneHeight height of windowClone
|
|
*/
|
|
// These parameters are not the values retrieved with
|
|
// get_transformed_position() and get_transformed_size(),
|
|
// as windowClone might be moving.
|
|
// See Workspace._showWindowOverlay
|
|
updatePositions: function(cloneX, cloneY, cloneWidth, cloneHeight, animate) {
|
|
let button = this.closeButton;
|
|
let title = this.title;
|
|
|
|
let settings = new Gio.Settings({ schema: BUTTON_LAYOUT_SCHEMA });
|
|
let layout = settings.get_string(BUTTON_LAYOUT_KEY);
|
|
let rtl = Clutter.get_default_text_direction() == Clutter.TextDirection.RTL;
|
|
|
|
let split = layout.split(":");
|
|
let side;
|
|
if (split[0].indexOf("close") > -1)
|
|
side = rtl ? St.Side.RIGHT : St.Side.LEFT;
|
|
else
|
|
side = rtl ? St.Side.LEFT : St.Side.RIGHT;
|
|
|
|
let buttonX;
|
|
let buttonY = cloneY - (button.height - button._overlap);
|
|
if (side == St.Side.LEFT)
|
|
buttonX = cloneX - (button.width - button._overlap);
|
|
else
|
|
buttonX = cloneX + (cloneWidth - button._overlap);
|
|
|
|
if (animate)
|
|
this._animateOverlayActor(button, Math.floor(buttonX), Math.floor(buttonY), button.width);
|
|
else
|
|
button.set_position(Math.floor(buttonX), Math.floor(buttonY));
|
|
|
|
let [titleMinWidth, titleNatWidth] = title.get_preferred_width(-1);
|
|
let titleWidth = Math.max(titleMinWidth, Math.min(titleNatWidth, cloneWidth));
|
|
|
|
let titleX = cloneX + (cloneWidth - titleWidth) / 2;
|
|
let titleY = cloneY + cloneHeight + title._spacing;
|
|
|
|
if (animate)
|
|
this._animateOverlayActor(title, Math.floor(titleX), Math.floor(titleY), titleWidth);
|
|
else {
|
|
title.width = titleWidth;
|
|
title.set_position(Math.floor(titleX), Math.floor(titleY));
|
|
}
|
|
},
|
|
|
|
_animateOverlayActor: function(actor, x, y, width) {
|
|
Tweener.addTween(actor,
|
|
{ x: x,
|
|
y: y,
|
|
width: width,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: 'easeOutQuad'
|
|
});
|
|
},
|
|
|
|
_closeWindow: function(actor) {
|
|
let metaWindow = this._windowClone.metaWindow;
|
|
this._workspace = metaWindow.get_workspace();
|
|
|
|
this._windowAddedId = this._workspace.connect('window-added',
|
|
Lang.bind(this,
|
|
this._onWindowAdded));
|
|
|
|
metaWindow.delete(global.get_current_time());
|
|
},
|
|
|
|
_onWindowAdded: function(workspace, win) {
|
|
let metaWindow = this._windowClone.metaWindow;
|
|
|
|
if (win.get_transient_for() == metaWindow) {
|
|
workspace.disconnect(this._windowAddedId);
|
|
this._windowAddedId = 0;
|
|
|
|
// use an idle handler to avoid mapping problems -
|
|
// see comment in Workspace._windowAdded
|
|
Mainloop.idle_add(Lang.bind(this,
|
|
function() {
|
|
this._windowClone.emit('selected');
|
|
return false;
|
|
}));
|
|
}
|
|
},
|
|
|
|
_onDestroy: function() {
|
|
if (this._windowAddedId > 0) {
|
|
this._workspace.disconnect(this._windowAddedId);
|
|
this._windowAddedId = 0;
|
|
}
|
|
if (this._idleToggleCloseId > 0) {
|
|
Mainloop.source_remove(this._idleToggleCloseId);
|
|
this._idleToggleCloseId = 0;
|
|
}
|
|
this._windowClone.metaWindow.disconnect(this._updateCaptionId);
|
|
this.title.destroy();
|
|
this.closeButton.destroy();
|
|
},
|
|
|
|
_onEnter: function() {
|
|
// We might get enter events on the clone while the overlay is
|
|
// hidden, e.g. during animations, we ignore these events,
|
|
// as the close button will be shown as needed when the overlays
|
|
// are shown again
|
|
if (this._hidden)
|
|
return;
|
|
this._parentActor.raise_top();
|
|
this.closeButton.show();
|
|
this.emit('show-close-button');
|
|
},
|
|
|
|
_onLeave: function() {
|
|
if (this._idleToggleCloseId == 0)
|
|
this._idleToggleCloseId = Mainloop.timeout_add(750, Lang.bind(this, this._idleToggleCloseButton));
|
|
},
|
|
|
|
_idleToggleCloseButton: function() {
|
|
this._idleToggleCloseId = 0;
|
|
if (!this._windowClone.actor.has_pointer &&
|
|
!this.closeButton.has_pointer)
|
|
this.closeButton.hide();
|
|
|
|
return false;
|
|
},
|
|
|
|
hideCloseButton: function() {
|
|
if (this._idleToggleCloseId > 0) {
|
|
Mainloop.source_remove(this._idleToggleCloseId);
|
|
this._idleToggleCloseId = 0;
|
|
}
|
|
this.closeButton.hide();
|
|
},
|
|
|
|
_onStyleChanged: function() {
|
|
let titleNode = this.title.get_theme_node();
|
|
this.title._spacing = titleNode.get_length('-shell-caption-spacing');
|
|
|
|
let closeNode = this.closeButton.get_theme_node();
|
|
this.closeButton._overlap = closeNode.get_length('-shell-close-overlap');
|
|
|
|
this._parentActor.queue_relayout();
|
|
}
|
|
});
|
|
Signals.addSignalMethods(WindowOverlay.prototype);
|
|
|
|
const WindowPositionFlags = {
|
|
INITIAL: 1 << 0,
|
|
ANIMATE: 1 << 1
|
|
};
|
|
|
|
const LayoutStrategy = new Lang.Class({
|
|
Name: 'LayoutStrategy',
|
|
Abstract: true,
|
|
|
|
_init: function(monitor, rowSpacing, columnSpacing, bottomPadding) {
|
|
this._monitor = monitor;
|
|
this._rowSpacing = rowSpacing;
|
|
this._columnSpacing = columnSpacing;
|
|
this._bottomPadding = bottomPadding;
|
|
},
|
|
|
|
_newRow: function() {
|
|
// Row properties:
|
|
//
|
|
// * x, y are the position of row, relative to area
|
|
//
|
|
// * width, height are the scaled versions of fullWidth, fullHeight
|
|
//
|
|
// * width also has the spacing in between windows. It's not in
|
|
// fullWidth, as the spacing is constant, whereas fullWidth is
|
|
// meant to be scaled
|
|
//
|
|
// * neither height/fullHeight have any sort of spacing or padding
|
|
//
|
|
// * if cellWidth is present, all windows in the row will occupy
|
|
// the space of cellWidth, centered.
|
|
return { x: 0, y: 0,
|
|
width: 0, height: 0,
|
|
fullWidth: 0, fullHeight: 0,
|
|
cellWidth: 0,
|
|
windows: [] };
|
|
},
|
|
|
|
// Compute the size and fancy scale for @window using the
|
|
// base scale, @scale.
|
|
//
|
|
// Returns a list structure: [ scaledWidth, scaledHeight, fancyScale ]
|
|
// where scaledWidth and scaledHeight are the window's
|
|
// width and height, scaled by fancyScale for convenience.
|
|
_computeWindowSizeAndScale: function(window, scale) {
|
|
let width = window.actor.width;
|
|
let height = window.actor.height;
|
|
let ratio;
|
|
|
|
if (width > height)
|
|
ratio = width / this._monitor.width;
|
|
else
|
|
ratio = height / this._monitor.height;
|
|
|
|
let fancyScale = (2 / (1 + ratio)) * scale;
|
|
return [width * fancyScale, height * fancyScale, fancyScale];
|
|
},
|
|
|
|
// Compute the size of each row, by assigning to the properties
|
|
// row.width, row.height, row.fullWidth, row.fullHeight, and
|
|
// (optionally) row.cellWidth, for each row in @layout.rows.
|
|
// This method is intended to be called by subclasses.
|
|
_computeRowSizes: function(layout) {
|
|
throw new Error('_computeRowSizes not implemented');
|
|
},
|
|
|
|
// Compute strategy-specific window slots for each window in
|
|
// @windows, given the @layout. The strategy may also use @layout
|
|
// as strategy-specific storage.
|
|
//
|
|
// This must calculate:
|
|
// * maxColumns - The maximum number of columns used by the layout.
|
|
// * gridWidth - The total width used by the grid, unscaled, unspaced.
|
|
// * gridHeight - The totial height used by the grid, unscaled, unspaced.
|
|
// * rows - A list of rows, which should be instantiated by _newRow.
|
|
computeLayout: function(windows, layout) {
|
|
throw new Error('computeLayout not implemented');
|
|
},
|
|
|
|
// Given @layout, compute the overall scale and space of the layout.
|
|
// The scale is the individual, non-fancy scale of each window, and
|
|
// the space is the percentage of the available area eventually
|
|
// used by the layout.
|
|
|
|
// This method does not return anything, but instead installs
|
|
// the properties "scale" and "space" on @layout directly.
|
|
//
|
|
// Make sure to call this methods before calling computeWindowSlots(),
|
|
// as it depends on the scale property installed in @layout here.
|
|
computeScaleAndSpace: function(layout) {
|
|
let area = layout.area;
|
|
|
|
let hspacing = (layout.maxColumns - 1) * this._columnSpacing;
|
|
let vspacing = (layout.numRows - 1) * this._rowSpacing + this._bottomPadding;
|
|
|
|
let spacedWidth = area.width - hspacing;
|
|
let spacedHeight = area.height - vspacing;
|
|
|
|
let horizontalScale = spacedWidth / layout.gridWidth;
|
|
let verticalScale = spacedHeight / layout.gridHeight;
|
|
|
|
// Thumbnails should be less than 70% of the original size
|
|
let scale = Math.min(horizontalScale, verticalScale, WINDOW_CLONE_MAXIMUM_SCALE);
|
|
|
|
let scaledLayoutWidth = layout.gridWidth * scale + hspacing;
|
|
let scaledLayoutHeight = layout.gridHeight * scale + vspacing;
|
|
let space = (scaledLayoutWidth * scaledLayoutHeight) / (area.width * area.height);
|
|
|
|
layout.scale = scale;
|
|
layout.space = space;
|
|
},
|
|
|
|
computeWindowSlots: function(layout, area) {
|
|
this._computeRowSizes(layout);
|
|
|
|
let { rows: rows, scale: scale, state: state } = layout;
|
|
|
|
let slots = [];
|
|
|
|
let y = 0;
|
|
for (let i = 0; i < rows.length; i++) {
|
|
let row = rows[i];
|
|
row.x = area.x + (area.width - row.width) / 2;
|
|
row.y = area.y + y;
|
|
y += row.height + this._rowSpacing;
|
|
}
|
|
|
|
let height = y - this._rowSpacing + this._bottomPadding;
|
|
let baseY = (area.height - height) / 2;
|
|
|
|
for (let i = 0; i < rows.length; i++) {
|
|
let row = rows[i];
|
|
row.y += baseY;
|
|
let baseX = row.x;
|
|
for (let j = 0; j < row.windows.length; j++) {
|
|
let window = row.windows[j];
|
|
|
|
let [width, height, s] = this._computeWindowSizeAndScale(window, scale);
|
|
let y = row.y + row.height - height;
|
|
|
|
let x = baseX;
|
|
if (row.cellWidth) {
|
|
x += (row.cellWidth - width) / 2;
|
|
width = row.cellWidth;
|
|
}
|
|
|
|
slots.push([x, y, s]);
|
|
baseX += width + this._columnSpacing;
|
|
}
|
|
}
|
|
return slots;
|
|
}
|
|
});
|
|
|
|
const UnalignedLayoutStrategy = new Lang.Class({
|
|
Name: 'UnalignedLayoutStrategy',
|
|
Extends: LayoutStrategy,
|
|
|
|
_computeRowSizes: function(layout) {
|
|
let { rows: rows, scale: scale } = layout;
|
|
for (let i = 0; i < rows.length; i++) {
|
|
let row = rows[i];
|
|
row.width = row.fullWidth * scale + (row.windows.length - 1) * this._columnSpacing;
|
|
row.height = row.fullHeight * scale;
|
|
}
|
|
},
|
|
|
|
_keepSameRow: function(row, window, width, idealRowWidth) {
|
|
if (row.fullWidth + width <= idealRowWidth)
|
|
return true;
|
|
|
|
let oldRatio = row.fullWidth / idealRowWidth;
|
|
let newRatio = (row.fullWidth + width) / idealRowWidth;
|
|
|
|
if (Math.abs(1 - newRatio) < Math.abs(1 - oldRatio))
|
|
return true;
|
|
|
|
return false;
|
|
},
|
|
|
|
computeLayout: function(windows, layout) {
|
|
let numRows = layout.numRows;
|
|
|
|
let rows = [];
|
|
let totalWidth = 0;
|
|
for (let i = 0; i < windows.length; i++) {
|
|
totalWidth += windows[i].actor.width;
|
|
}
|
|
|
|
let idealRowWidth = totalWidth / numRows;
|
|
let windowIdx = 0;
|
|
for (let i = 0; i < numRows; i++) {
|
|
let col = 0;
|
|
let row = this._newRow();
|
|
rows.push(row);
|
|
|
|
for (; windowIdx < windows.length; windowIdx++) {
|
|
let window = windows[windowIdx];
|
|
let [width, height] = this._computeWindowSizeAndScale(window, 1);
|
|
row.fullHeight = Math.max(row.fullHeight, height);
|
|
|
|
// either new width is < idealWidth or new width is nearer from idealWidth then oldWidth
|
|
if (this._keepSameRow(row, window, width, idealRowWidth) || (i == numRows - 1)) {
|
|
row.windows.push(window);
|
|
row.fullWidth += width;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
let gridHeight = 0;
|
|
let maxRow;
|
|
for (let i = 0; i < numRows; i++) {
|
|
let row = rows[i];
|
|
if (!maxRow || row.fullWidth > maxRow.fullWidth)
|
|
maxRow = row;
|
|
gridHeight += row.fullHeight;
|
|
}
|
|
|
|
layout.rows = rows;
|
|
layout.maxColumns = maxRow.windows.length;
|
|
layout.gridWidth = maxRow.fullWidth;
|
|
layout.gridHeight = gridHeight;
|
|
}
|
|
});
|
|
|
|
const GridLayoutStrategy = new Lang.Class({
|
|
Name: 'GridLayoutStrategy',
|
|
Extends: LayoutStrategy,
|
|
|
|
_computeRowSizes: function(layout) {
|
|
let { rows: rows, scale: scale } = layout;
|
|
|
|
let gridWidth = layout.numColumns * layout.maxWindowWidth;
|
|
let hspacing = (layout.numColumns - 1) * this._columnSpacing;
|
|
for (let i = 0; i < rows.length; i++) {
|
|
let row = rows[i];
|
|
row.fullWidth = layout.gridWidth;
|
|
row.fullHeight = layout.maxWindowHeight;
|
|
|
|
row.width = row.fullWidth * scale + hspacing;
|
|
row.height = row.fullHeight * scale;
|
|
row.cellWidth = layout.maxWindowWidth * scale;
|
|
}
|
|
},
|
|
|
|
computeLayout: function(windows, layout) {
|
|
let { numRows: numRows, numColumns: numColumns } = layout;
|
|
let rows = [];
|
|
let windowIdx = 0;
|
|
|
|
let maxWindowWidth = 0;
|
|
let maxWindowHeight = 0;
|
|
for (let i = 0; i < numRows; i++) {
|
|
let row = this._newRow();
|
|
rows.push(row);
|
|
for (; windowIdx < windows.length; windowIdx++) {
|
|
if (row.windows.length >= numColumns)
|
|
break;
|
|
|
|
let window = windows[windowIdx];
|
|
row.windows.push(window);
|
|
|
|
let [width, height] = this._computeWindowSizeAndScale(window, 1);
|
|
maxWindowWidth = Math.max(maxWindowWidth, width);
|
|
maxWindowHeight = Math.max(maxWindowHeight, height);
|
|
}
|
|
}
|
|
|
|
layout.rows = rows;
|
|
layout.maxColumns = numColumns;
|
|
layout.gridWidth = numColumns * maxWindowWidth;
|
|
layout.gridHeight = numRows * maxWindowHeight;
|
|
layout.maxWindowWidth = maxWindowWidth;
|
|
layout.maxWindowHeight = maxWindowHeight;
|
|
}
|
|
});
|
|
|
|
/**
|
|
* @metaWorkspace: a #Meta.Workspace, or null
|
|
*/
|
|
const Workspace = new Lang.Class({
|
|
Name: 'Workspace',
|
|
|
|
_init : function(metaWorkspace, monitorIndex) {
|
|
// When dragging a window, we use this slot for reserve space.
|
|
this._reservedSlot = null;
|
|
this.metaWorkspace = metaWorkspace;
|
|
this._x = 0;
|
|
this._y = 0;
|
|
this._width = 0;
|
|
this._height = 0;
|
|
|
|
this.monitorIndex = monitorIndex;
|
|
this._monitor = Main.layoutManager.monitors[this.monitorIndex];
|
|
this._windowOverlaysGroup = new Clutter.Group();
|
|
// Without this the drop area will be overlapped.
|
|
this._windowOverlaysGroup.set_size(0, 0);
|
|
|
|
this.actor = new St.Widget({ style_class: 'window-picker' });
|
|
this.actor.set_size(0, 0);
|
|
|
|
this._dropRect = new Clutter.Rectangle({ opacity: 0 });
|
|
this._dropRect._delegate = this;
|
|
|
|
this.actor.add_actor(this._dropRect);
|
|
this.actor.add_actor(this._windowOverlaysGroup);
|
|
|
|
this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
|
|
|
|
let windows = global.get_window_actors().filter(this._isMyWindow, this);
|
|
|
|
// Create clones for windows that should be
|
|
// visible in the Overview
|
|
this._windows = [];
|
|
this._windowOverlays = [];
|
|
for (let i = 0; i < windows.length; i++) {
|
|
if (this._isOverviewWindow(windows[i])) {
|
|
this._addWindowClone(windows[i]);
|
|
}
|
|
}
|
|
|
|
// Track window changes
|
|
if (this.metaWorkspace) {
|
|
this._windowAddedId = this.metaWorkspace.connect('window-added',
|
|
Lang.bind(this, this._windowAdded));
|
|
this._windowRemovedId = this.metaWorkspace.connect('window-removed',
|
|
Lang.bind(this, this._windowRemoved));
|
|
}
|
|
this._windowEnteredMonitorId = global.screen.connect('window-entered-monitor',
|
|
Lang.bind(this, this._windowEnteredMonitor));
|
|
this._windowLeftMonitorId = global.screen.connect('window-left-monitor',
|
|
Lang.bind(this, this._windowLeftMonitor));
|
|
this._repositionWindowsId = 0;
|
|
|
|
this.leavingOverview = false;
|
|
|
|
this._positionWindowsFlags = 0;
|
|
this._positionWindowsId = 0;
|
|
|
|
this._currentLayout = null;
|
|
},
|
|
|
|
setGeometry: function(x, y, width, height) {
|
|
this._x = x;
|
|
this._y = y;
|
|
this._width = width;
|
|
this._height = height;
|
|
|
|
Meta.later_add(Meta.LaterType.BEFORE_REDRAW, Lang.bind(this, function() {
|
|
this._dropRect.set_position(x, y);
|
|
this._dropRect.set_size(width, height);
|
|
return false;
|
|
}));
|
|
|
|
this.positionWindows(WindowPositionFlags.ANIMATE);
|
|
},
|
|
|
|
_lookupIndex: function (metaWindow) {
|
|
for (let i = 0; i < this._windows.length; i++) {
|
|
if (this._windows[i].metaWindow == metaWindow) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
},
|
|
|
|
containsMetaWindow: function (metaWindow) {
|
|
return this._lookupIndex(metaWindow) >= 0;
|
|
},
|
|
|
|
isEmpty: function() {
|
|
return this._windows.length == 0;
|
|
},
|
|
|
|
setReservedSlot: function(clone) {
|
|
if (this._reservedSlot == clone)
|
|
return;
|
|
|
|
if (clone && this.containsMetaWindow(clone.metaWindow))
|
|
clone = null;
|
|
|
|
this._reservedSlot = clone;
|
|
this._currentLayout = null;
|
|
this.positionWindows(WindowPositionFlags.ANIMATE);
|
|
},
|
|
|
|
/**
|
|
* positionWindows:
|
|
* @flags:
|
|
* INITIAL - this is the initial positioning of the windows.
|
|
* ANIMATE - Indicates that we need animate changing position.
|
|
*/
|
|
positionWindows: function(flags) {
|
|
if (this.leavingOverview)
|
|
return;
|
|
|
|
this._positionWindowsFlags |= flags;
|
|
|
|
if (this._positionWindowsId > 0)
|
|
return;
|
|
|
|
this._positionWindowsId = Meta.later_add(Meta.LaterType.BEFORE_REDRAW, Lang.bind(this, function() {
|
|
this._realPositionWindows(this._positionWindowsFlags);
|
|
this._positionWindowsFlags = 0;
|
|
this._positionWindowsId = 0;
|
|
return false;
|
|
}));
|
|
},
|
|
|
|
_realPositionWindows : function(flags) {
|
|
if (this._repositionWindowsId > 0) {
|
|
Mainloop.source_remove(this._repositionWindowsId);
|
|
this._repositionWindowsId = 0;
|
|
}
|
|
|
|
let clones = this._windows.slice();
|
|
|
|
clones.sort(function(a, b) {
|
|
return a.metaWindow.get_stable_sequence() - b.metaWindow.get_stable_sequence();
|
|
});
|
|
|
|
if (this._reservedSlot)
|
|
clones.push(this._reservedSlot);
|
|
|
|
let initialPositioning = flags & WindowPositionFlags.INITIAL;
|
|
let animate = flags & WindowPositionFlags.ANIMATE;
|
|
|
|
// Start the animations
|
|
let slots = this._computeAllWindowSlots(clones);
|
|
|
|
let currentWorkspace = global.screen.get_active_workspace();
|
|
let isOnCurrentWorkspace = this.metaWorkspace == null || this.metaWorkspace == currentWorkspace;
|
|
|
|
for (let i = 0; i < clones.length; i++) {
|
|
let slot = slots[i];
|
|
let clone = clones[i];
|
|
let metaWindow = clone.metaWindow;
|
|
let mainIndex = this._lookupIndex(metaWindow);
|
|
let overlay = this._windowOverlays[mainIndex];
|
|
|
|
// Positioning a window currently being dragged must be avoided;
|
|
// we'll just leave a blank spot in the layout for it.
|
|
if (clone.inDrag)
|
|
continue;
|
|
|
|
let [x, y, scale] = slot;
|
|
|
|
if (overlay && initialPositioning)
|
|
overlay.hide();
|
|
|
|
if (animate && isOnCurrentWorkspace) {
|
|
if (!metaWindow.showing_on_its_workspace()) {
|
|
/* Hidden windows should fade in and grow
|
|
* therefore we need to resize them now so they
|
|
* can be scaled up later */
|
|
if (initialPositioning) {
|
|
clone.actor.opacity = 0;
|
|
clone.actor.scale_x = 0;
|
|
clone.actor.scale_y = 0;
|
|
clone.actor.x = x;
|
|
clone.actor.y = y;
|
|
}
|
|
|
|
// Make the window slightly transparent to indicate it's hidden
|
|
Tweener.addTween(clone.actor,
|
|
{ opacity: 255,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: 'easeInQuad'
|
|
});
|
|
}
|
|
|
|
this._animateClone(clone, overlay, x, y, scale, initialPositioning);
|
|
} else {
|
|
// cancel any active tweens (otherwise they might override our changes)
|
|
Tweener.removeTweens(clone.actor);
|
|
clone.actor.set_position(x, y);
|
|
clone.actor.set_scale(scale, scale);
|
|
this._updateWindowOverlayPositions(clone, overlay, x, y, scale, false);
|
|
this._showWindowOverlay(clone, overlay, isOnCurrentWorkspace);
|
|
}
|
|
}
|
|
},
|
|
|
|
syncStacking: function(stackIndices) {
|
|
let clones = this._windows.slice();
|
|
clones.sort(function (a, b) { return stackIndices[a.metaWindow.get_stable_sequence()] - stackIndices[b.metaWindow.get_stable_sequence()]; });
|
|
|
|
for (let i = 0; i < clones.length; i++) {
|
|
let clone = clones[i];
|
|
let metaWindow = clone.metaWindow;
|
|
if (i == 0) {
|
|
clone.setStackAbove(this._dropRect);
|
|
} else {
|
|
let previousClone = clones[i - 1];
|
|
clone.setStackAbove(previousClone.actor);
|
|
}
|
|
}
|
|
},
|
|
|
|
_animateClone: function(clone, overlay, x, y, scale, initialPositioning) {
|
|
Tweener.addTween(clone.actor,
|
|
{ x: x,
|
|
y: y,
|
|
scale_x: scale,
|
|
scale_y: scale,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: 'easeOutQuad',
|
|
onComplete: Lang.bind(this, function() {
|
|
this._showWindowOverlay(clone, overlay, true);
|
|
})
|
|
});
|
|
|
|
this._updateWindowOverlayPositions(clone, overlay, x, y, scale, true);
|
|
},
|
|
|
|
_updateWindowOverlayPositions: function(clone, overlay, x, y, scale, animate) {
|
|
if (!overlay)
|
|
return;
|
|
|
|
let [cloneWidth, cloneHeight] = clone.actor.get_size();
|
|
overlay.updatePositions(x, y, cloneWidth * scale, cloneHeight * scale, animate);
|
|
},
|
|
|
|
_showWindowOverlay: function(clone, overlay, fade) {
|
|
if (clone.inDrag)
|
|
return;
|
|
|
|
if (overlay) {
|
|
if (fade)
|
|
overlay.fadeIn();
|
|
else
|
|
overlay.show();
|
|
}
|
|
},
|
|
|
|
_delayedWindowRepositioning: function() {
|
|
if (this._windowIsZooming)
|
|
return true;
|
|
|
|
let [x, y, mask] = global.get_pointer();
|
|
|
|
let pointerHasMoved = (this._cursorX != x && this._cursorY != y);
|
|
let inWorkspace = (this._x < x && x < this._x + this._width &&
|
|
this._y < y && y < this._y + this._height);
|
|
|
|
if (pointerHasMoved && inWorkspace) {
|
|
// store current cursor position
|
|
this._cursorX = x;
|
|
this._cursorY = y;
|
|
return true;
|
|
}
|
|
|
|
let actorUnderPointer = global.stage.get_actor_at_pos(Clutter.PickMode.REACTIVE, x, y);
|
|
for (let i = 0; i < this._windows.length; i++) {
|
|
if (this._windows[i].actor == actorUnderPointer)
|
|
return true;
|
|
}
|
|
|
|
this.positionWindows(WindowPositionFlags.ANIMATE);
|
|
return false;
|
|
},
|
|
|
|
_doRemoveWindow : function(metaWin) {
|
|
let win = metaWin.get_compositor_private();
|
|
|
|
// find the position of the window in our list
|
|
let index = this._lookupIndex (metaWin);
|
|
|
|
if (index == -1)
|
|
return;
|
|
|
|
// Check if window still should be here
|
|
if (win && this._isMyWindow(win))
|
|
return;
|
|
|
|
let clone = this._windows[index];
|
|
|
|
this._windows.splice(index, 1);
|
|
this._windowOverlays.splice(index, 1);
|
|
|
|
// If metaWin.get_compositor_private() returned non-NULL, that
|
|
// means the window still exists (and is just being moved to
|
|
// another workspace or something), so set its overviewHint
|
|
// accordingly. (If it returned NULL, then the window is being
|
|
// destroyed; we'd like to animate this, but it's too late at
|
|
// this point.)
|
|
if (win) {
|
|
let [stageX, stageY] = clone.actor.get_transformed_position();
|
|
let [stageWidth, stageHeight] = clone.actor.get_transformed_size();
|
|
win._overviewHint = {
|
|
x: stageX,
|
|
y: stageY,
|
|
scale: stageWidth / clone.actor.width
|
|
};
|
|
}
|
|
clone.destroy();
|
|
|
|
|
|
// We need to reposition the windows; to avoid shuffling windows
|
|
// around while the user is interacting with the workspace, we delay
|
|
// the positioning until the pointer remains still for at least 750 ms
|
|
// or is moved outside the workspace
|
|
|
|
// remove old handler
|
|
if (this._repositionWindowsId > 0) {
|
|
Mainloop.source_remove(this._repositionWindowsId);
|
|
this._repositionWindowsId = 0;
|
|
}
|
|
|
|
// setup new handler
|
|
let [x, y, mask] = global.get_pointer();
|
|
this._cursorX = x;
|
|
this._cursorY = y;
|
|
|
|
this._currentLayout = null;
|
|
this._repositionWindowsId = Mainloop.timeout_add(750,
|
|
Lang.bind(this, this._delayedWindowRepositioning));
|
|
},
|
|
|
|
_doAddWindow : function(metaWin) {
|
|
if (this.leavingOverview)
|
|
return;
|
|
|
|
let win = metaWin.get_compositor_private();
|
|
|
|
if (!win) {
|
|
// Newly-created windows are added to a workspace before
|
|
// the compositor finds out about them...
|
|
Mainloop.idle_add(Lang.bind(this,
|
|
function () {
|
|
if (this.actor &&
|
|
metaWin.get_compositor_private() &&
|
|
metaWin.get_workspace() == this.metaWorkspace)
|
|
this._doAddWindow(metaWin);
|
|
return false;
|
|
}));
|
|
return;
|
|
}
|
|
|
|
// We might have the window in our list already if it was on all workspaces and
|
|
// now was moved to this workspace
|
|
if (this._lookupIndex (metaWin) != -1)
|
|
return;
|
|
|
|
if (!this._isMyWindow(win) || !this._isOverviewWindow(win))
|
|
return;
|
|
|
|
let [clone, overlay] = this._addWindowClone(win);
|
|
|
|
if (win._overviewHint) {
|
|
let x = win._overviewHint.x - this.actor.x;
|
|
let y = win._overviewHint.y - this.actor.y;
|
|
let scale = win._overviewHint.scale;
|
|
delete win._overviewHint;
|
|
|
|
clone.actor.set_position (x, y);
|
|
clone.actor.set_scale (scale, scale);
|
|
this._updateWindowOverlayPositions(clone, overlay, x, y, scale, false);
|
|
} else {
|
|
// Position new windows at the top corner of the workspace rather
|
|
// than where they were placed for real to avoid the window
|
|
// being clipped to the workspaceView. Its not really more
|
|
// natural for the window to suddenly appear in the overview
|
|
// on some seemingly random location anyway.
|
|
clone.actor.set_position (this._x, this._y);
|
|
}
|
|
|
|
this._currentLayout = null;
|
|
this.positionWindows(WindowPositionFlags.ANIMATE);
|
|
},
|
|
|
|
_windowAdded : function(metaWorkspace, metaWin) {
|
|
this._doAddWindow(metaWin);
|
|
},
|
|
|
|
_windowRemoved : function(metaWorkspace, metaWin) {
|
|
this._doRemoveWindow(metaWin);
|
|
},
|
|
|
|
_windowEnteredMonitor : function(metaScreen, monitorIndex, metaWin) {
|
|
if (monitorIndex == this.monitorIndex) {
|
|
this._doAddWindow(metaWin);
|
|
}
|
|
},
|
|
|
|
_windowLeftMonitor : function(metaScreen, monitorIndex, metaWin) {
|
|
if (monitorIndex == this.monitorIndex) {
|
|
this._doRemoveWindow(metaWin);
|
|
}
|
|
},
|
|
|
|
// check for maximized windows on the workspace
|
|
hasMaximizedWindows: function() {
|
|
for (let i = 0; i < this._windows.length; i++) {
|
|
let metaWindow = this._windows[i].metaWindow;
|
|
if (metaWindow.showing_on_its_workspace() &&
|
|
metaWindow.maximized_horizontally &&
|
|
metaWindow.maximized_vertically)
|
|
return true;
|
|
}
|
|
return false;
|
|
},
|
|
|
|
// Animate the full-screen to Overview transition.
|
|
zoomToOverview : function() {
|
|
this._currentLayout = null;
|
|
|
|
// Position and scale the windows.
|
|
if (Main.overview.animationInProgress)
|
|
this.positionWindows(WindowPositionFlags.ANIMATE | WindowPositionFlags.INITIAL);
|
|
else
|
|
this.positionWindows(WindowPositionFlags.INITIAL);
|
|
},
|
|
|
|
// Animates the return from Overview mode
|
|
zoomFromOverview : function() {
|
|
let currentWorkspace = global.screen.get_active_workspace();
|
|
|
|
this.leavingOverview = true;
|
|
|
|
for (let i = 0; i < this._windows.length; i++) {
|
|
let clone = this._windows[i];
|
|
Tweener.removeTweens(clone.actor);
|
|
}
|
|
|
|
if (this._repositionWindowsId > 0) {
|
|
Mainloop.source_remove(this._repositionWindowsId);
|
|
this._repositionWindowsId = 0;
|
|
}
|
|
this._overviewHiddenId = Main.overview.connect('hidden', Lang.bind(this,
|
|
this._doneLeavingOverview));
|
|
|
|
if (this.metaWorkspace != null && this.metaWorkspace != currentWorkspace)
|
|
return;
|
|
|
|
// Position and scale the windows.
|
|
for (let i = 0; i < this._windows.length; i++) {
|
|
let clone = this._windows[i];
|
|
let overlay = this._windowOverlays[i];
|
|
|
|
if (overlay)
|
|
overlay.hide();
|
|
|
|
clone.zoomFromOverview();
|
|
|
|
if (clone.metaWindow.showing_on_its_workspace()) {
|
|
Tweener.addTween(clone.actor,
|
|
{ x: clone.origX,
|
|
y: clone.origY,
|
|
scale_x: 1.0,
|
|
scale_y: 1.0,
|
|
time: Overview.ANIMATION_TIME,
|
|
opacity: 255,
|
|
transition: 'easeOutQuad'
|
|
});
|
|
} else {
|
|
// The window is hidden, make it shrink and fade it out
|
|
Tweener.addTween(clone.actor,
|
|
{ scale_x: 0,
|
|
scale_y: 0,
|
|
opacity: 0,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: 'easeOutQuad'
|
|
});
|
|
}
|
|
}
|
|
},
|
|
|
|
destroy : function() {
|
|
this.actor.destroy();
|
|
},
|
|
|
|
_onDestroy: function(actor) {
|
|
if (this._overviewHiddenId) {
|
|
Main.overview.disconnect(this._overviewHiddenId);
|
|
this._overviewHiddenId = 0;
|
|
}
|
|
Tweener.removeTweens(actor);
|
|
|
|
if (this.metaWorkspace) {
|
|
this.metaWorkspace.disconnect(this._windowAddedId);
|
|
this.metaWorkspace.disconnect(this._windowRemovedId);
|
|
}
|
|
global.screen.disconnect(this._windowEnteredMonitorId);
|
|
global.screen.disconnect(this._windowLeftMonitorId);
|
|
|
|
if (this._repositionWindowsId > 0)
|
|
Mainloop.source_remove(this._repositionWindowsId);
|
|
|
|
if (this._positionWindowsId > 0)
|
|
Meta.later_remove(this._positionWindowsId);
|
|
|
|
// Usually, the windows will be destroyed automatically with
|
|
// their parent (this.actor), but we might have a zoomed window
|
|
// which has been reparented to the stage - _windows[0] holds
|
|
// the desktop window, which is never reparented
|
|
for (let w = 0; w < this._windows.length; w++)
|
|
this._windows[w].destroy();
|
|
this._windows = [];
|
|
},
|
|
|
|
// Sets this.leavingOverview flag to false.
|
|
_doneLeavingOverview : function() {
|
|
this.leavingOverview = false;
|
|
},
|
|
|
|
// Tests if @win belongs to this workspaces and monitor
|
|
_isMyWindow : function (win) {
|
|
return (this.metaWorkspace == null || Main.isWindowActorDisplayedOnWorkspace(win, this.metaWorkspace.index())) &&
|
|
(!win.get_meta_window() || win.get_meta_window().get_monitor() == this.monitorIndex);
|
|
},
|
|
|
|
// Tests if @win should be shown in the Overview
|
|
_isOverviewWindow : function (win) {
|
|
let tracker = Shell.WindowTracker.get_default();
|
|
return tracker.is_window_interesting(win.get_meta_window());
|
|
},
|
|
|
|
// Create a clone of a (non-desktop) window and add it to the window list
|
|
_addWindowClone : function(win) {
|
|
let clone = new WindowClone(win, this);
|
|
let overlay = new WindowOverlay(clone, this._windowOverlaysGroup);
|
|
|
|
clone.connect('selected',
|
|
Lang.bind(this, this._onCloneSelected));
|
|
clone.connect('drag-begin',
|
|
Lang.bind(this, function(clone) {
|
|
Main.overview.beginWindowDrag();
|
|
overlay.hide();
|
|
}));
|
|
clone.connect('drag-cancelled',
|
|
Lang.bind(this, function(clone) {
|
|
Main.overview.cancelledWindowDrag();
|
|
}));
|
|
clone.connect('drag-end',
|
|
Lang.bind(this, function(clone) {
|
|
Main.overview.endWindowDrag();
|
|
overlay.show();
|
|
}));
|
|
clone.connect('zoom-start',
|
|
Lang.bind(this, function() {
|
|
this._windowIsZooming = true;
|
|
}));
|
|
clone.connect('zoom-end',
|
|
Lang.bind(this, function() {
|
|
this._windowIsZooming = false;
|
|
}));
|
|
clone.connect('size-changed',
|
|
Lang.bind(this, function() {
|
|
this.positionWindows(0);
|
|
}));
|
|
|
|
this.actor.add_actor(clone.actor);
|
|
|
|
overlay.connect('show-close-button', Lang.bind(this, this._onShowOverlayClose));
|
|
|
|
this._windows.push(clone);
|
|
this._windowOverlays.push(overlay);
|
|
|
|
return [clone, overlay];
|
|
},
|
|
|
|
_onShowOverlayClose: function (windowOverlay) {
|
|
for (let i = 0; i < this._windowOverlays.length; i++) {
|
|
let overlay = this._windowOverlays[i];
|
|
if (overlay == windowOverlay)
|
|
continue;
|
|
overlay.hideCloseButton();
|
|
}
|
|
},
|
|
|
|
_isBetterLayout: function(oldLayout, newLayout) {
|
|
if (oldLayout.scale === undefined)
|
|
return true;
|
|
|
|
let spacePower = (newLayout.space - oldLayout.space) * LAYOUT_SPACE_WEIGHT;
|
|
let scalePower = (newLayout.scale - oldLayout.scale) * LAYOUT_SCALE_WEIGHT;
|
|
|
|
if (newLayout.scale > oldLayout.scale && newLayout.space > oldLayout.space) {
|
|
// Win win -- better scale and better space
|
|
return true;
|
|
} else if (newLayout.scale > oldLayout.scale && newLayout.space <= oldLayout.space) {
|
|
// Keep new layout only if scale gain outweights aspect space loss
|
|
return scalePower > spacePower;
|
|
} else if (newLayout.scale <= oldLayout.scale && newLayout.space > oldLayout.space) {
|
|
// Keep new layout only if aspect space gain outweights scale loss
|
|
return spacePower > scalePower;
|
|
} else {
|
|
// Lose -- worse scale and space
|
|
return false;
|
|
}
|
|
},
|
|
|
|
_computeLayout: function(windows, area, rowSpacing, columnSpacing, bottomPadding) {
|
|
// We look for the largest scale that allows us to fit the
|
|
// largest row/tallest column on the workspace.
|
|
|
|
let lastLayout = {};
|
|
|
|
for (let numRows = 1; ; numRows++) {
|
|
let numColumns = Math.ceil(windows.length / numRows);
|
|
|
|
// If adding a new row does not change column count just stop
|
|
// (for instance: 9 windows, with 3 rows -> 3 columns, 4 rows ->
|
|
// 3 columns as well => just use 3 rows then)
|
|
if (numColumns == lastLayout.numColumns)
|
|
break;
|
|
|
|
let strategyClass = numRows > 2 ? GridLayoutStrategy : UnalignedLayoutStrategy;
|
|
let strategy = new strategyClass(this._monitor, rowSpacing, columnSpacing, bottomPadding);
|
|
|
|
let layout = { area: area, strategy: strategy, numRows: numRows, numColumns: numColumns };
|
|
strategy.computeLayout(windows, layout);
|
|
strategy.computeScaleAndSpace(layout);
|
|
|
|
if (!this._isBetterLayout(lastLayout, layout))
|
|
break;
|
|
|
|
lastLayout = layout;
|
|
}
|
|
|
|
return lastLayout;
|
|
},
|
|
|
|
_rectEqual: function(one, two) {
|
|
if (one == two)
|
|
return true;
|
|
|
|
return (one.x == two.x &&
|
|
one.y == two.y &&
|
|
one.width == two.width &&
|
|
one.height == two.height);
|
|
},
|
|
|
|
_computeAllWindowSlots: function(windows) {
|
|
let totalWindows = windows.length;
|
|
let node = this.actor.get_theme_node();
|
|
|
|
// Window grid spacing
|
|
let columnSpacing = node.get_length('-horizontal-spacing');
|
|
let rowSpacing = node.get_length('-vertical-spacing');
|
|
|
|
if (!totalWindows)
|
|
return [];
|
|
|
|
let closeButtonHeight, captionHeight;
|
|
if (this._windowOverlays.length) {
|
|
// All of the overlays have the same chrome sizes,
|
|
// so just pick the first one.
|
|
let overlay = this._windowOverlays[0];
|
|
[closeButtonHeight, captionHeight] = overlay.chromeHeights();
|
|
} else {
|
|
[closeButtonHeight, captionHeight] = [0, 0];
|
|
}
|
|
|
|
rowSpacing += captionHeight;
|
|
|
|
let area = { x: this._x, y: this._y, width: this._width, height: this._height };
|
|
area.y += closeButtonHeight;
|
|
area.height -= closeButtonHeight;
|
|
|
|
if (!this._currentLayout)
|
|
this._currentLayout = this._computeLayout(windows, area, rowSpacing, columnSpacing, captionHeight);
|
|
|
|
let layout = this._currentLayout;
|
|
let strategy = layout.strategy;
|
|
|
|
if (!this._rectEqual(area, layout.area)) {
|
|
layout.area = area;
|
|
strategy.computeScaleAndSpace(layout);
|
|
}
|
|
|
|
return strategy.computeWindowSlots(layout, area);
|
|
},
|
|
|
|
_onCloneSelected : function (clone, time) {
|
|
let wsIndex = undefined;
|
|
if (this.metaWorkspace)
|
|
wsIndex = this.metaWorkspace.index();
|
|
Main.activateWindow(clone.metaWindow, time, wsIndex);
|
|
},
|
|
|
|
// Draggable target interface
|
|
handleDragOver : function(source, actor, x, y, time) {
|
|
if (source.realWindow && !this._isMyWindow(source.realWindow))
|
|
return DND.DragMotionResult.MOVE_DROP;
|
|
if (source.shellWorkspaceLaunch)
|
|
return DND.DragMotionResult.COPY_DROP;
|
|
|
|
return DND.DragMotionResult.CONTINUE;
|
|
},
|
|
|
|
acceptDrop : function(source, actor, x, y, time) {
|
|
if (source.realWindow) {
|
|
let win = source.realWindow;
|
|
if (this._isMyWindow(win))
|
|
return false;
|
|
|
|
// Set a hint on the Mutter.Window so its initial position
|
|
// in the new workspace will be correct
|
|
win._overviewHint = {
|
|
x: actor.x,
|
|
y: actor.y,
|
|
scale: actor.scale_x
|
|
};
|
|
|
|
let metaWindow = win.get_meta_window();
|
|
|
|
// We need to move the window before changing the workspace, because
|
|
// the move itself could cause a workspace change if the window enters
|
|
// the primary monitor
|
|
if (metaWindow.get_monitor() != this.monitorIndex)
|
|
metaWindow.move_to_monitor(this.monitorIndex);
|
|
|
|
let index = this.metaWorkspace ? this.metaWorkspace.index() : global.screen.get_active_workspace_index();
|
|
metaWindow.change_workspace_by_index(index,
|
|
false, // don't create workspace
|
|
time);
|
|
return true;
|
|
} else if (source.shellWorkspaceLaunch) {
|
|
source.shellWorkspaceLaunch({ workspace: this.metaWorkspace ? this.metaWorkspace.index() : -1,
|
|
timestamp: time });
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
});
|
|
|
|
Signals.addSignalMethods(Workspace.prototype);
|