38c06ca837
Previously, we had ShellAppInfo, which contains fundamental information about an application, and methods on ShellAppMonitor to retrieve "live" information like the window list. AppIcon ended up being used as the "App" class which was painful for various reasons; among them that we need to handle window list changes, and some consumers weren't ready for that. Clean things up a bit by introducing a new ShellApp class in C, which currently wraps a ShellAppInfo. AppIcon then is more like the display actor for a ShellApp. Notably, the ".windows" property moves out of it. The altTab code which won't handle dynamic changes instead is changed to maintain a cached version. ShellAppMonitor gains some more methods related to ShellApp now. In the future, we might consider changing ShellApp to be a GInterface, which could be implemented by ShellDesktopFileApp, ShellWindowApp. Then we could axe ShellAppInfo from the "public" API and it would return to being an internal loss mitigation layer for GMenu. https://bugzilla.gnome.org/show_bug.cgi?id=598227
1732 lines
61 KiB
JavaScript
1732 lines
61 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 GdkPixbuf = imports.gi.GdkPixbuf;
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const Gtk = imports.gi.Gtk;
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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 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 WINDOWCLONE_BG_COLOR = new Clutter.Color();
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WINDOWCLONE_BG_COLOR.from_pixel(0x000000f0);
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const WINDOWCLONE_TITLE_COLOR = new Clutter.Color();
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WINDOWCLONE_TITLE_COLOR.from_pixel(0xffffffff);
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const FRAME_COLOR = new Clutter.Color();
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FRAME_COLOR.from_pixel(0xffffffff);
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const SCROLL_SCALE_AMOUNT = 100 / 5;
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const ZOOM_OVERLAY_FADE_TIME = 0.15;
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// Define a layout scheme for small window counts. For larger
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// counts we fall back to an algorithm. We need more schemes here
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// unless we have a really good algorithm.
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// Each triplet is [xCenter, yCenter, scale] where the scale
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// is relative to the width of the workspace.
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const POSITIONS = {
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1: [[0.5, 0.5, 0.95]],
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2: [[0.25, 0.5, 0.48], [0.75, 0.5, 0.48]],
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3: [[0.25, 0.25, 0.48], [0.75, 0.25, 0.48], [0.5, 0.75, 0.48]],
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4: [[0.25, 0.25, 0.47], [0.75, 0.25, 0.47], [0.75, 0.75, 0.47], [0.25, 0.75, 0.47]],
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5: [[0.165, 0.25, 0.32], [0.495, 0.25, 0.32], [0.825, 0.25, 0.32], [0.25, 0.75, 0.32], [0.75, 0.75, 0.32]]
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};
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// Used in _orderWindowsPermutations, 5! = 120 which is probably the highest we can go
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const POSITIONING_PERMUTATIONS_MAX = 5;
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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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// Spacing between workspaces. At the moment, the same spacing is used
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// in both zoomed-in and zoomed-out views; this is slightly
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// metaphor-breaking, but the alternatives are also weird.
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const GRID_SPACING = 15;
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const FRAME_SIZE = GRID_SPACING / 3;
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function ScaledPoint(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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ScaledPoint.prototype = {
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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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function WindowClone(realWindow) {
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this._init(realWindow);
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}
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WindowClone.prototype = {
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_init : function(realWindow) {
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this.actor = new Clutter.Clone({ source: realWindow.get_texture(),
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reactive: true,
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x: realWindow.x,
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y: realWindow.y });
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this.actor._delegate = this;
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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.origX = realWindow.x;
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this.origY = realWindow.y;
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this._stackAbove = null;
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this._title = null;
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this.actor.connect('button-release-event',
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Lang.bind(this, this._onButtonRelease));
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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('enter-event',
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Lang.bind(this, this._onEnter));
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this.actor.connect('leave-event',
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Lang.bind(this, this._onLeave));
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this._havePointer = false;
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this._draggable = DND.makeDraggable(this.actor);
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this._draggable.connect('drag-begin', Lang.bind(this, this._onDragBegin));
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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._zooming = false;
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},
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setVisibleWithChrome: function(visible) {
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if (visible) {
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this.actor.show();
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if (this._title)
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this._title.show();
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} else {
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this.actor.hide();
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if (this._title)
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this._title.hide();
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}
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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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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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if (this._title)
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this._title.destroy();
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},
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_onEnter: function (actor, event) {
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// If the user drags faster than we can follow, he'll end up
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// leaving the window temporarily and then re-entering it
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if (this._inDrag)
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return;
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this._havePointer = true;
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this._updateTitle();
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},
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_onLeave: function (actor, event) {
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// If the user drags faster than we can follow, he'll end up
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// leaving the window temporarily and then re-entering it
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if (this._inDrag)
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return;
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this._havePointer = false;
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this._updateTitle();
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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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this.actor.x = _clamp(this.actor.x, 0, global.screen_width - width);
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this.actor.y = _clamp(this.actor.y, Panel.PANEL_HEIGHT, global.screen_height - height);
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},
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_zoomStart : function () {
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this._zooming = true;
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this._zoomLightbox = new Lightbox.Lightbox(global.stage);
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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(global.stage);
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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._hideEventId = Main.overview.connect('hiding', Lang.bind(this, function () { this._zoomEnd(); }));
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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.actor.reparent(this._origParent);
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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._adjustTitle();
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this._zoomLightbox.destroy();
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Main.overview.disconnect(this._hideEventId);
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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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this._zoomLightbox = undefined;
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},
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_onButtonRelease : function (actor, event) {
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this.emit('selected', event.get_time());
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},
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_onDragBegin : function (draggable, time) {
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this._inDrag = true;
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this._updateTitle();
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this.emit('drag-begin');
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},
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_onDragEnd : function (draggable, time, snapback) {
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this._inDrag = false;
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// Most likely, the clone is going to move away from the
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// pointer now. But that won't cause a leave-event, so
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// do this by hand. Of course, if the window only snaps
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// back a short distance, this might be wrong, but it's
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// better to have the label mysteriously missing than
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// mysteriously present
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this._havePointer = 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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this.actor.raise(this._stackAbove);
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this.emit('drag-end');
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},
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// Called by Tweener
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onAnimationStart : function () {
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this._updateTitle();
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},
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// Called by Tweener
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onAnimationComplete : function () {
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this._updateTitle();
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},
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_createTitle : function () {
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let window = this.realWindow;
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let box = new Big.Box({ background_color : WINDOWCLONE_BG_COLOR,
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y_align: Big.BoxAlignment.CENTER,
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corner_radius: 5,
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padding: 4,
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spacing: 4,
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orientation: Big.BoxOrientation.HORIZONTAL });
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let title = new Clutter.Text({ color: WINDOWCLONE_TITLE_COLOR,
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font_name: "Sans 12",
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text: this.metaWindow.title,
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ellipsize: Pango.EllipsizeMode.END
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});
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box.append(title, Big.BoxPackFlags.EXPAND);
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// Get and cache the expected width (just the icon), with spacing, plus title
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box.fullWidth = box.width;
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box.hide(); // Hidden by default, show on mouseover
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this._title = box;
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// Make the title a sibling of the window
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this.actor.get_parent().add_actor(box);
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},
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_adjustTitle : function () {
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let title = this._title;
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if (!title)
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return;
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let [cloneScreenWidth, cloneScreenHeight] = this.actor.get_transformed_size();
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let [titleScreenWidth, titleScreenHeight] = title.get_transformed_size();
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// Titles are supposed to be "full-size", so adjust its
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// scale to counteract the scaling of its ancestor actors.
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title.set_scale(title.width / titleScreenWidth * title.scale_x,
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title.height / titleScreenHeight * title.scale_y);
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title.width = Math.min(title.fullWidth, cloneScreenWidth);
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let xoff = ((cloneScreenWidth - title.width) / 2) * title.scale_x;
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title.set_position(this.actor.x + xoff, this.actor.y);
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},
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_showTitle : function () {
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if (!this._title)
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this._createTitle();
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this._adjustTitle();
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this._title.show();
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this._title.raise(this.actor);
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},
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_hideTitle : function () {
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if (!this._title)
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return;
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this._title.hide();
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},
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_updateTitle : function () {
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let shouldShow = (this._havePointer &&
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!this._inDrag &&
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!Tweener.isTweening(this.actor));
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if (shouldShow)
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this._showTitle();
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else
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this._hideTitle();
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}
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};
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Signals.addSignalMethods(WindowClone.prototype);
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function DesktopClone(window) {
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this._init(window);
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}
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DesktopClone.prototype = {
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_init : function(window) {
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if (window) {
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this.actor = new Clutter.Clone({ source: window.get_texture(),
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reactive: true });
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} else {
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this.actor = new Clutter.Rectangle({ color: global.stage.color,
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reactive: true,
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width: global.screen_width,
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height: global.screen_height });
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}
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this.actor.connect('button-release-event',
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Lang.bind(this, this._onButtonRelease));
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},
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_onButtonRelease : function (actor, event) {
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this.emit('selected', event.get_time());
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}
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};
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Signals.addSignalMethods(DesktopClone.prototype);
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/**
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* @workspaceNum: Workspace index
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* @parentActor: The actor which will be the parent of this workspace;
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* we need this in order to add chrome such as the icons
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* on top of the windows without having them be scaled.
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*/
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function Workspace(workspaceNum, parentActor) {
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this._init(workspaceNum, parentActor);
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}
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Workspace.prototype = {
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_init : function(workspaceNum, parentActor) {
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this.workspaceNum = workspaceNum;
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this._metaWorkspace = global.screen.get_workspace_by_index(workspaceNum);
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this.parentActor = parentActor;
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this.actor = new Clutter.Group();
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this.actor._delegate = this;
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// Auto-sizing is unreliable in the presence of ClutterClone, so rather than
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// implicitly counting on the workspace actor to be sized to the size of the
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// included desktop actor clone, set the size explicitly to the screen size.
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// See http://bugzilla.openedhand.com/show_bug.cgi?id=1755
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this.actor.width = global.screen_width;
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this.actor.height = global.screen_height;
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this.scale = 1.0;
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let windows = global.get_windows().filter(this._isMyWindow, this);
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// Find the desktop window
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for (let i = 0; i < windows.length; i++) {
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if (windows[i].get_window_type() == Meta.WindowType.DESKTOP) {
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this._desktop = new DesktopClone(windows[i]);
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break;
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}
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}
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// If there wasn't one, fake it
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if (!this._desktop)
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this._desktop = new DesktopClone();
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this._desktop.connect('selected',
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Lang.bind(this,
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function(clone, time) {
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this._metaWorkspace.activate(time);
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Main.overview.hide();
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}));
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this.actor.add_actor(this._desktop.actor);
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// Create clones for remaining windows that should be
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// visible in the Overview
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this._windows = [this._desktop];
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this._windowIcons = [ null ];
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for (let i = 0; i < windows.length; i++) {
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if (this._isOverviewWindow(windows[i])) {
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this._addWindowClone(windows[i]);
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}
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}
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// A filter for what windows we display
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this._showOnlyWindows = null;
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// Track window changes
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this._windowAddedId = this._metaWorkspace.connect('window-added',
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Lang.bind(this, this._windowAdded));
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this._windowRemovedId = this._metaWorkspace.connect('window-removed',
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Lang.bind(this, this._windowRemoved));
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this._removeButton = null;
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this._visible = false;
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this._frame = null;
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this.leavingOverview = false;
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},
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updateRemovable : function() {
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let removable = (this._windows.length == 1 /* just desktop */ &&
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this.workspaceNum != 0 &&
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this.workspaceNum == global.screen.n_workspaces - 1);
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if (removable) {
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if (this._removeButton)
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return;
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this._removeButton = new Clutter.Texture({ width: Overview.addRemoveButtonSize,
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height: Overview.addRemoveButtonSize,
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reactive: true
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});
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this._removeButton.set_from_file(global.imagedir + "remove-workspace.svg");
|
|
this._removeButton.connect('button-release-event', Lang.bind(this, this._removeSelf));
|
|
|
|
this.actor.add_actor(this._removeButton);
|
|
this._adjustRemoveButton();
|
|
this._adjustRemoveButtonId = this.actor.connect('notify::scale-x', Lang.bind(this, this._adjustRemoveButton));
|
|
|
|
if (this._visible) {
|
|
this._removeButton.set_opacity(0);
|
|
Tweener.addTween(this._removeButton,
|
|
{ opacity: 255,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: "easeOutQuad"
|
|
});
|
|
}
|
|
} else {
|
|
if (!this._removeButton)
|
|
return;
|
|
|
|
if (this._visible) {
|
|
Tweener.addTween(this._removeButton,
|
|
{ opacity: 0,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: "easeOutQuad",
|
|
onComplete: this._removeRemoveButton,
|
|
onCompleteScope: this
|
|
});
|
|
} else
|
|
this._removeRemoveButton();
|
|
}
|
|
},
|
|
|
|
_lookupIndex: function (metaWindow) {
|
|
let index, clone;
|
|
for (let i = 0; i < this._windows.length; i++) {
|
|
if (this._windows[i].metaWindow == metaWindow) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
},
|
|
|
|
/**
|
|
* lookupCloneForMetaWindow:
|
|
* @metaWindow: A #MetaWindow
|
|
*
|
|
* Given a #MetaWindow instance, find the WindowClone object
|
|
* which represents it in the workspaces display.
|
|
*/
|
|
lookupCloneForMetaWindow: function (metaWindow) {
|
|
let index = this._lookupIndex (metaWindow);
|
|
return index < 0 ? null : this._windows[index];
|
|
},
|
|
|
|
containsMetaWindow: function (metaWindow) {
|
|
return this._lookupIndex(metaWindow) >= 0;
|
|
},
|
|
|
|
setShowOnlyWindows: function(showOnlyWindows, reposition) {
|
|
this._showOnlyWindows = showOnlyWindows;
|
|
this._resetCloneVisibility();
|
|
if (reposition)
|
|
this.positionWindows(false);
|
|
},
|
|
|
|
/**
|
|
* setLightboxMode:
|
|
* @showLightbox: If true, dim background and allow highlighting a specific window
|
|
*
|
|
* This function also resets the highlighted window state.
|
|
*/
|
|
setLightboxMode: function (showLightbox) {
|
|
if (showLightbox) {
|
|
this._lightbox = new Lightbox.Lightbox(this.actor);
|
|
} else {
|
|
this._lightbox.destroy();
|
|
this._lightbox = null;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* setHighlightWindow:
|
|
* @metaWindow: A #MetaWindow
|
|
*
|
|
* Draw the user's attention to the given window @metaWindow.
|
|
*/
|
|
setHighlightWindow: function (metaWindow) {
|
|
let actor;
|
|
if (metaWindow != null) {
|
|
let clone = this.lookupCloneForMetaWindow(metaWindow);
|
|
actor = clone.actor;
|
|
}
|
|
this._lightbox.highlight(actor);
|
|
},
|
|
|
|
_adjustRemoveButton : function() {
|
|
this._removeButton.set_scale(1.0 / this.actor.scale_x,
|
|
1.0 / this.actor.scale_y);
|
|
this._removeButton.set_position(
|
|
(this.actor.width - this._removeButton.width / this.actor.scale_x) / 2,
|
|
(this.actor.height - this._removeButton.height / this.actor.scale_y) / 2);
|
|
},
|
|
|
|
_removeRemoveButton : function() {
|
|
this._removeButton.destroy();
|
|
this._removeButton = null;
|
|
this.actor.disconnect(this._adjustRemoveButtonId);
|
|
},
|
|
|
|
// Mark the workspace selected/not-selected
|
|
setSelected : function(selected) {
|
|
// Don't draw a frame if we only have one workspace
|
|
if (selected && global.screen.n_workspaces > 1) {
|
|
if (this._frame)
|
|
return;
|
|
|
|
// FIXME: do something cooler-looking using clutter-cairo
|
|
this._frame = new Clutter.Rectangle({ color: FRAME_COLOR });
|
|
this.actor.add_actor(this._frame);
|
|
this._frame.set_position(this._desktop.actor.x - FRAME_SIZE / this.actor.scale_x,
|
|
this._desktop.actor.y - FRAME_SIZE / this.actor.scale_y);
|
|
this._frame.set_size(this._desktop.actor.width + 2 * FRAME_SIZE / this.actor.scale_x,
|
|
this._desktop.actor.height + 2 * FRAME_SIZE / this.actor.scale_y);
|
|
this._frame.lower_bottom();
|
|
|
|
this._framePosHandler = this.actor.connect('notify::scale-x', Lang.bind(this, this._updateFramePosition));
|
|
} else {
|
|
if (!this._frame)
|
|
return;
|
|
this.actor.disconnect(this._framePosHandler);
|
|
this._frame.destroy();
|
|
this._frame = null;
|
|
}
|
|
},
|
|
|
|
_updateFramePosition : function() {
|
|
this._frame.set_position(this._desktop.actor.x - FRAME_SIZE / this.actor.scale_x,
|
|
this._desktop.actor.y - FRAME_SIZE / this.actor.scale_y);
|
|
this._frame.set_size(this._desktop.actor.width + 2 * FRAME_SIZE / this.actor.scale_x,
|
|
this._desktop.actor.height + 2 * FRAME_SIZE / this.actor.scale_y);
|
|
},
|
|
|
|
_isCloneVisible: function(clone) {
|
|
return this._showOnlyWindows == null || (clone.metaWindow in this._showOnlyWindows);
|
|
},
|
|
|
|
/**
|
|
* _getVisibleClones:
|
|
*
|
|
* Returns a list WindowClone objects where the clone isn't filtered
|
|
* out by any application filter. The clone for the desktop is excluded.
|
|
* The returned array will always be newly allocated; it is not in any
|
|
* defined order, and thus it's convenient to call .sort() with your
|
|
* choice of sorting function.
|
|
*/
|
|
_getVisibleClones: function() {
|
|
let visible = [];
|
|
|
|
for (let i = 1; i < this._windows.length; i++) {
|
|
let clone = this._windows[i];
|
|
|
|
if (!this._isCloneVisible(clone))
|
|
continue;
|
|
|
|
visible.push(clone);
|
|
}
|
|
return visible;
|
|
},
|
|
|
|
_getVisibleWindows: function() {
|
|
return this._getVisibleClones().map(function (clone) { return clone.metaWindow; });
|
|
},
|
|
|
|
_resetCloneVisibility: function () {
|
|
for (let i = 1; i < this._windows.length; i++) {
|
|
let clone = this._windows[i];
|
|
let icon = this._windowIcons[i];
|
|
|
|
if (!this._isCloneVisible(clone)) {
|
|
clone.setVisibleWithChrome(false);
|
|
icon.hide();
|
|
} else {
|
|
clone.setVisibleWithChrome(true);
|
|
}
|
|
}
|
|
},
|
|
|
|
// Only use this for n <= 20 say
|
|
_factorial: function(n) {
|
|
let result = 1;
|
|
for (let i = 2; i <= n; i++)
|
|
result *= i;
|
|
return result;
|
|
},
|
|
|
|
/**
|
|
* _permutation:
|
|
* @permutationIndex: An integer from [0, list.length!)
|
|
* @list: (inout): Array of objects to permute; will be modified in place
|
|
*
|
|
* Given an integer between 0 and length of array, re-order the array in-place
|
|
* into a permutation denoted by the index.
|
|
*/
|
|
_permutation: function(permutationIndex, list) {
|
|
for (let j = 2; j <= list.length; j++) {
|
|
let firstIndex = (permutationIndex % j);
|
|
let secondIndex = j - 1;
|
|
// Swap
|
|
let tmp = list[firstIndex];
|
|
list[firstIndex] = list[secondIndex];
|
|
list[secondIndex] = tmp;
|
|
permutationIndex = Math.floor(permutationIndex / j);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* _forEachPermutations:
|
|
* @list: Array
|
|
* @func: Function which takes a single array argument
|
|
*
|
|
* Call @func with each permutation of @list as an argument.
|
|
*/
|
|
_forEachPermutations: function(list, func) {
|
|
let nCombinations = this._factorial(list.length);
|
|
for (let i = 0; i < nCombinations; i++) {
|
|
let listCopy = list.concat();
|
|
this._permutation(i, listCopy);
|
|
func(listCopy);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* _computeWindowMotion:
|
|
* @metaWindow: A #MetaWindow
|
|
* @slot: An element of #POSITIONS
|
|
* @slotGeometry: Layout of @slot
|
|
*
|
|
* Returns a number corresponding to how much perceived motion
|
|
* would be involved in moving the window to the given slot.
|
|
* Currently this is the square of the distance between the
|
|
* centers.
|
|
*/
|
|
_computeWindowMotion: function (metaWindow, slot, slotGeometry) {
|
|
let rect = new Meta.Rectangle();
|
|
metaWindow.get_outer_rect(rect);
|
|
|
|
let [slotX, slotY, slotWidth, slotHeight] = slotGeometry;
|
|
let distanceSquared;
|
|
let xDelta, yDelta;
|
|
|
|
xDelta = (rect.x + rect.width / 2) - (slotX + slotWidth / 2);
|
|
yDelta = (rect.y + rect.height / 2) - (slotY + slotHeight / 2);
|
|
distanceSquared = xDelta * xDelta + yDelta * yDelta;
|
|
|
|
return distanceSquared;
|
|
},
|
|
|
|
/**
|
|
* _orderWindowsPermutations:
|
|
*
|
|
* Iterate over all permutations of the windows, and determine the
|
|
* permutation which has the least total motion.
|
|
*/
|
|
_orderWindowsPermutations: function (windows, slots, slotGeometries) {
|
|
let minimumMotionPermutation = null;
|
|
let minimumMotion = -1;
|
|
let permIndex = 0;
|
|
this._forEachPermutations(windows, Lang.bind(this, function (permutation) {
|
|
let motion = 0;
|
|
for (let i = 0; i < permutation.length; i++) {
|
|
let metaWindow = permutation[i];
|
|
let slot = slots[i];
|
|
let slotAbsGeometry = slotGeometries[i];
|
|
|
|
let delta = this._computeWindowMotion(metaWindow, slot, slotAbsGeometry);
|
|
|
|
motion += delta;
|
|
}
|
|
|
|
if (minimumMotionPermutation == null || motion < minimumMotion) {
|
|
minimumMotionPermutation = permutation;
|
|
minimumMotion = motion;
|
|
}
|
|
permIndex++;
|
|
}));
|
|
return minimumMotionPermutation;
|
|
},
|
|
|
|
/**
|
|
* _orderWindowsGreedy:
|
|
*
|
|
* Iterate over available slots in order, placing into each one the window
|
|
* we find with the smallest motion to that slot.
|
|
*/
|
|
_orderWindowsGreedy: function(windows, slots, slotGeometries) {
|
|
let result = [];
|
|
let slotIndex = 0;
|
|
// Copy since we mutate below
|
|
let windowCopy = windows.concat();
|
|
for (let i = 0; i < slots.length; i++) {
|
|
let slot = slots[i];
|
|
let slotGeometry = slotGeometries[i];
|
|
let minimumMotionIndex = -1;
|
|
let minimumMotion = -1;
|
|
for (let j = 0; j < windowCopy.length; j++) {
|
|
let metaWindow = windowCopy[j];
|
|
let delta = this._computeWindowMotion(metaWindow, slot, slotGeometry);
|
|
if (minimumMotionIndex == -1 || delta < minimumMotion) {
|
|
minimumMotionIndex = j;
|
|
minimumMotion = delta;
|
|
}
|
|
}
|
|
result.push(windowCopy[minimumMotionIndex]);
|
|
windowCopy.splice(minimumMotionIndex, 1);
|
|
}
|
|
return result;
|
|
},
|
|
|
|
/**
|
|
* _orderWindowsByMotionAndStartup:
|
|
* @windows: Array of #MetaWindow
|
|
* @slots: Array of slots
|
|
*
|
|
* Returns a copy of @windows, ordered in such a way that they require least motion
|
|
* to move to the final screen coordinates of @slots. Ties are broken in a stable
|
|
* fashion by the order in which the windows were created.
|
|
*/
|
|
_orderWindowsByMotionAndStartup: function(windows, slots) {
|
|
let appMonitor = Shell.AppMonitor.get_default();
|
|
windows.sort(function(w1, w2) {
|
|
return w2.get_stable_sequence() - w1.get_stable_sequence();
|
|
});
|
|
let slotGeometries = slots.map(Lang.bind(this, this._getSlotAbsoluteGeometry));
|
|
if (windows.length <= POSITIONING_PERMUTATIONS_MAX)
|
|
return this._orderWindowsPermutations(windows, slots, slotGeometries);
|
|
else
|
|
return this._orderWindowsGreedy(windows, slots, slotGeometries);
|
|
},
|
|
|
|
/**
|
|
* _getSlotRelativeGeometry:
|
|
* @slot: A layout slot
|
|
*
|
|
* Returns: the workspace-relative [x, y, width, height]
|
|
* of a given window layout slot.
|
|
*/
|
|
_getSlotRelativeGeometry: function(slot) {
|
|
let [xCenter, yCenter, fraction] = slot;
|
|
|
|
let width = global.screen_width * fraction;
|
|
let height = global.screen_height * fraction;
|
|
|
|
let x = xCenter * global.screen_width - width / 2;
|
|
let y = yCenter * global.screen_height - height / 2;
|
|
|
|
return [x, y, width, height];
|
|
},
|
|
|
|
/**
|
|
* _getSlotAbsoluteGeometry:
|
|
* @slot: A layout slot
|
|
*
|
|
* Returns: the screen coordiantes [x, y, width, height]
|
|
* of a given window layout slot.
|
|
*/
|
|
_getSlotAbsoluteGeometry: function(slot) {
|
|
let [x, y, width, height] = this._getSlotRelativeGeometry(slot);
|
|
return [ this.gridX + x, this.gridY + y,
|
|
this.scale * width, this.scale * height];
|
|
},
|
|
|
|
/**
|
|
* _computeWindowRelativeLayout:
|
|
* @metaWindow: A #MetaWindow
|
|
* @slot: A layout slot
|
|
*
|
|
* Given a window and slot to fit it in, compute its
|
|
* workspace-relative [x, y, scale] where scale applies
|
|
* to both X and Y directions.
|
|
*/
|
|
_computeWindowRelativeLayout: function(metaWindow, slot) {
|
|
let [xCenter, yCenter, fraction] = slot;
|
|
|
|
xCenter = xCenter * global.screen_width;
|
|
yCenter = yCenter * global.screen_height;
|
|
|
|
let rect = new Meta.Rectangle();
|
|
metaWindow.get_outer_rect(rect);
|
|
|
|
let desiredWidth = global.screen_width * fraction;
|
|
let desiredHeight = global.screen_height * fraction;
|
|
let scale = Math.min(desiredWidth / rect.width,
|
|
desiredHeight / rect.height,
|
|
1.0 / this.scale);
|
|
|
|
let x = xCenter - 0.5 * scale * rect.width;
|
|
let y = yCenter - 0.5 * scale * rect.height;
|
|
|
|
return [x, y, scale];
|
|
},
|
|
|
|
/**
|
|
* positionWindows:
|
|
* @workspaceZooming: If true, then the workspace is moving at the same time and we need to take that into account.
|
|
*/
|
|
positionWindows : function(workspaceZooming) {
|
|
let totalVisible = 0;
|
|
|
|
let visibleWindows = this._getVisibleWindows();
|
|
|
|
// Start the animations
|
|
let slots = this._computeAllWindowSlots(visibleWindows.length);
|
|
visibleWindows = this._orderWindowsByMotionAndStartup(visibleWindows, slots);
|
|
|
|
for (let i = 0; i < visibleWindows.length; i++) {
|
|
let slot = slots[i];
|
|
let metaWindow = visibleWindows[i];
|
|
let mainIndex = this._lookupIndex(metaWindow);
|
|
let clone = metaWindow._delegate;
|
|
let icon = this._windowIcons[mainIndex];
|
|
|
|
let [x, y, scale] = this._computeWindowRelativeLayout(metaWindow, slot);
|
|
|
|
icon.hide();
|
|
Tweener.addTween(clone.actor,
|
|
{ x: x,
|
|
y: y,
|
|
scale_x: scale,
|
|
scale_y: scale,
|
|
workspace_relative: workspaceZooming ? this : null,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: "easeOutQuad",
|
|
onComplete: Lang.bind(this, function() {
|
|
this._fadeInWindowIcon(clone, icon);
|
|
})
|
|
});
|
|
}
|
|
},
|
|
|
|
syncStacking: function(stackIndices) {
|
|
let desktopClone = this._windows[0];
|
|
|
|
let visibleClones = this._getVisibleClones();
|
|
visibleClones.sort(function (a, b) { return stackIndices[a.metaWindow.get_stable_sequence()] - stackIndices[b.metaWindow.get_stable_sequence()]; });
|
|
|
|
for (let i = 0; i < visibleClones.length; i++) {
|
|
let clone = visibleClones[i];
|
|
let metaWindow = clone.metaWindow;
|
|
if (i == 0) {
|
|
clone.setStackAbove(desktopClone.actor);
|
|
} else {
|
|
let previousClone = visibleClones[i - 1];
|
|
clone.setStackAbove(previousClone.actor);
|
|
}
|
|
}
|
|
},
|
|
|
|
_fadeInWindowIcon: function (clone, icon) {
|
|
icon.opacity = 0;
|
|
icon.show();
|
|
// This is a little messy and complicated because when we
|
|
// start the fade-in we may not have done the final positioning
|
|
// of the workspaces. (Tweener doesn't necessarily finish
|
|
// all animations before calling onComplete callbacks.)
|
|
// So we need to manually compute where the window will
|
|
// be after the workspace animation finishes.
|
|
let [parentX, parentY] = icon.get_parent().get_position();
|
|
let [cloneX, cloneY] = clone.actor.get_position();
|
|
let [cloneWidth, cloneHeight] = clone.actor.get_size();
|
|
cloneX = this.gridX + this.scale * cloneX;
|
|
cloneY = this.gridY + this.scale * cloneY;
|
|
cloneWidth = this.scale * clone.actor.scale_x * cloneWidth;
|
|
cloneHeight = this.scale * clone.actor.scale_y * cloneHeight;
|
|
// Note we only round the first part, because we're still going to be
|
|
// positioned relative to the parent. By subtracting a possibly
|
|
// non-integral parent X/Y we cancel it out.
|
|
let x = Math.round(cloneX + cloneWidth - icon.width) - parentX;
|
|
let y = Math.round(cloneY + cloneHeight - icon.height) - parentY;
|
|
icon.set_position(x, y);
|
|
icon.raise(this.actor);
|
|
Tweener.addTween(icon,
|
|
{ opacity: 255,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: "easeOutQuad" });
|
|
},
|
|
|
|
_fadeInAllIcons: function () {
|
|
for (let i = 1; i < this._windows.length; i++) {
|
|
let clone = this._windows[i];
|
|
let icon = this._windowIcons[i];
|
|
if (this._showOnlyWindows != null && !(clone.metaWindow in this._showOnlyWindows))
|
|
continue;
|
|
this._fadeInWindowIcon(clone, icon);
|
|
}
|
|
},
|
|
|
|
_hideAllIcons: function () {
|
|
for (let i = 1; i < this._windows.length; i++) {
|
|
let icon = this._windowIcons[i];
|
|
icon.hide();
|
|
}
|
|
},
|
|
|
|
_windowRemoved : function(metaWorkspace, 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;
|
|
|
|
let clone = this._windows[index];
|
|
let icon = this._windowIcons[index];
|
|
|
|
this._windows.splice(index, 1);
|
|
this._windowIcons.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();
|
|
icon.destroy();
|
|
|
|
this.positionWindows(false);
|
|
this.updateRemovable();
|
|
},
|
|
|
|
_windowAdded : function(metaWorkspace, 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())
|
|
this._windowAdded(metaWorkspace, metaWin);
|
|
return false;
|
|
}));
|
|
return;
|
|
}
|
|
|
|
if (!this._isOverviewWindow(win))
|
|
return;
|
|
|
|
let clone = this._addWindowClone(win);
|
|
|
|
if (win._overviewHint) {
|
|
let x = (win._overviewHint.x - this.actor.x) / this.scale;
|
|
let y = (win._overviewHint.y - this.actor.y) / this.scale;
|
|
let scale = win._overviewHint.scale / this.scale;
|
|
delete win._overviewHint;
|
|
|
|
clone.actor.set_position (x, y);
|
|
clone.actor.set_scale (scale, scale);
|
|
}
|
|
|
|
this.positionWindows(false);
|
|
this.updateRemovable();
|
|
},
|
|
|
|
// Animate the full-screen to Overview transition.
|
|
zoomToOverview : function() {
|
|
this.actor.set_position(this.gridX, this.gridY);
|
|
this.actor.set_scale(this.scale, this.scale);
|
|
|
|
// Position and scale the windows.
|
|
this.positionWindows(true);
|
|
|
|
// Fade in the remove button if available, so that it doesn't appear
|
|
// too abrubtly and doesn't start at a too big size.
|
|
if (this._removeButton) {
|
|
Tweener.removeTweens(this._removeButton);
|
|
this._removeButton.opacity = 0;
|
|
Tweener.addTween(this._removeButton,
|
|
{ opacity: 255,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: 'easeOutQuad'
|
|
});
|
|
}
|
|
|
|
this._visible = true;
|
|
},
|
|
|
|
// Animates the return from Overview mode
|
|
zoomFromOverview : function() {
|
|
this.leavingOverview = true;
|
|
|
|
this._hideAllIcons();
|
|
|
|
Main.overview.connect('hidden', Lang.bind(this,
|
|
this._doneLeavingOverview));
|
|
|
|
// Fade out the remove button if available, so that it doesn't
|
|
// disappear too abrubtly and doesn't become too big.
|
|
if (this._removeButton) {
|
|
Tweener.removeTweens(this._removeButton);
|
|
Tweener.addTween(this._removeButton,
|
|
{ opacity: 0,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: 'easeOutQuad'
|
|
});
|
|
}
|
|
|
|
// Position and scale the windows.
|
|
for (let i = 1; i < this._windows.length; i++) {
|
|
let clone = this._windows[i];
|
|
Tweener.addTween(clone.actor,
|
|
{ x: clone.origX,
|
|
y: clone.origY,
|
|
scale_x: 1.0,
|
|
scale_y: 1.0,
|
|
workspace_relative: this,
|
|
time: Overview.ANIMATION_TIME,
|
|
opacity: 255,
|
|
transition: "easeOutQuad"
|
|
});
|
|
}
|
|
|
|
this._visible = false;
|
|
},
|
|
|
|
// Animates grid shrinking/expanding when a row or column
|
|
// of workspaces is added or removed
|
|
resizeToGrid : function (oldScale) {
|
|
this._hideAllIcons();
|
|
Tweener.addTween(this.actor,
|
|
{ x: this.gridX,
|
|
y: this.gridY,
|
|
scale_x: this.scale,
|
|
scale_y: this.scale,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: "easeOutQuad",
|
|
onComplete: Lang.bind(this, this._fadeInAllIcons)
|
|
});
|
|
},
|
|
|
|
// Animates the addition of a new (empty) workspace
|
|
slideIn : function(oldScale) {
|
|
if (this.gridCol > this.gridRow) {
|
|
this.actor.set_position(global.screen_width, this.gridY);
|
|
this.actor.set_scale(oldScale, oldScale);
|
|
} else {
|
|
this.actor.set_position(this.gridX, global.screen_height);
|
|
this.actor.set_scale(this.scale, this.scale);
|
|
}
|
|
Tweener.addTween(this.actor,
|
|
{ x: this.gridX,
|
|
y: this.gridY,
|
|
scale_x: this.scale,
|
|
scale_y: this.scale,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: "easeOutQuad"
|
|
});
|
|
|
|
this._visible = true;
|
|
},
|
|
|
|
// Animates the removal of a workspace
|
|
slideOut : function(onComplete) {
|
|
let destX = this.actor.x, destY = this.actor.y;
|
|
|
|
this._hideAllIcons();
|
|
|
|
if (this.gridCol > this.gridRow)
|
|
destX = global.screen_width;
|
|
else
|
|
destY = global.screen_height;
|
|
Tweener.addTween(this.actor,
|
|
{ x: destX,
|
|
y: destY,
|
|
scale_x: this.scale,
|
|
scale_y: this.scale,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: "easeOutQuad",
|
|
onComplete: onComplete
|
|
});
|
|
|
|
this._visible = false;
|
|
|
|
// Don't let the user try to select this workspace as it's
|
|
// making its exit.
|
|
this._desktop.reactive = false;
|
|
},
|
|
|
|
destroy : function() {
|
|
Tweener.removeTweens(this.actor);
|
|
this.actor.destroy();
|
|
this.actor = null;
|
|
|
|
this._metaWorkspace.disconnect(this._windowAddedId);
|
|
this._metaWorkspace.disconnect(this._windowRemovedId);
|
|
},
|
|
|
|
// Sets this.leavingOverview flag to false.
|
|
_doneLeavingOverview : function() {
|
|
this.leavingOverview = false;
|
|
},
|
|
|
|
// Tests if @win belongs to this workspaces
|
|
_isMyWindow : function (win) {
|
|
return win.get_workspace() == this.workspaceNum ||
|
|
(win.get_meta_window() && win.get_meta_window().is_on_all_workspaces());
|
|
},
|
|
|
|
// Tests if @win should be shown in the Overview
|
|
_isOverviewWindow : function (win) {
|
|
let appMon = Shell.AppMonitor.get_default()
|
|
return appMon.is_window_usage_tracked(win.get_meta_window());
|
|
},
|
|
|
|
_createWindowIcon: function(window) {
|
|
let appSys = Shell.AppSystem.get_default();
|
|
let appMon = Shell.AppMonitor.get_default()
|
|
let appInfo = appMon.get_window_app(window.metaWindow).get_info();
|
|
let iconTexture = null;
|
|
// The design is application based, so prefer the application
|
|
// icon here if we have it. FIXME - should move this fallback code
|
|
// into ShellAppMonitor.
|
|
if (appInfo) {
|
|
iconTexture = appInfo.create_icon_texture(48);
|
|
} else {
|
|
let icon = window.metaWindow.icon;
|
|
iconTexture = new Clutter.Texture({ width: 48,
|
|
height: 48,
|
|
keep_aspect_ratio: true });
|
|
Shell.clutter_texture_set_from_pixbuf(iconTexture, icon);
|
|
}
|
|
return iconTexture;
|
|
},
|
|
|
|
// Create a clone of a (non-desktop) window and add it to the window list
|
|
_addWindowClone : function(win) {
|
|
let icon = this._createWindowIcon(win);
|
|
this.parentActor.add_actor(icon);
|
|
|
|
let clone = new WindowClone(win);
|
|
clone.connect('selected',
|
|
Lang.bind(this, this._onCloneSelected));
|
|
clone.connect('drag-begin',
|
|
Lang.bind(this, function() {
|
|
icon.hide();
|
|
}));
|
|
clone.connect('drag-end',
|
|
Lang.bind(this, function() {
|
|
icon.show();
|
|
}));
|
|
|
|
this.actor.add_actor(clone.actor);
|
|
|
|
this._windows.push(clone);
|
|
this._windowIcons.push(icon);
|
|
|
|
return clone;
|
|
},
|
|
|
|
_computeWindowSlot : function(windowIndex, numberOfWindows) {
|
|
if (numberOfWindows in POSITIONS)
|
|
return POSITIONS[numberOfWindows][windowIndex];
|
|
|
|
// If we don't have a predefined scheme for this window count,
|
|
// arrange the windows in a grid pattern.
|
|
let gridWidth = Math.ceil(Math.sqrt(numberOfWindows));
|
|
let gridHeight = Math.ceil(numberOfWindows / gridWidth);
|
|
|
|
let fraction = 0.95 * (1. / gridWidth);
|
|
|
|
let xCenter = (.5 / gridWidth) + ((windowIndex) % gridWidth) / gridWidth;
|
|
let yCenter = (.5 / gridHeight) + Math.floor((windowIndex / gridWidth)) / gridHeight;
|
|
|
|
return [xCenter, yCenter, fraction];
|
|
},
|
|
|
|
_computeAllWindowSlots: function(totalWindows) {
|
|
let slots = [];
|
|
for (let i = 0; i < totalWindows; i++) {
|
|
slots.push(this._computeWindowSlot(i, totalWindows));
|
|
}
|
|
return slots;
|
|
},
|
|
|
|
_onCloneSelected : function (clone, time) {
|
|
Main.overview.activateWindow(clone.metaWindow, time);
|
|
},
|
|
|
|
_removeSelf : function(actor, event) {
|
|
let screen = global.screen;
|
|
let workspace = screen.get_workspace_by_index(this.workspaceNum);
|
|
|
|
screen.remove_workspace(workspace, event.get_time());
|
|
return true;
|
|
},
|
|
|
|
// Draggable target interface
|
|
acceptDrop : function(source, actor, x, y, time) {
|
|
if (source instanceof WindowClone) {
|
|
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();
|
|
metaWindow.change_workspace_by_index(this.workspaceNum,
|
|
false, // don't create workspace
|
|
time);
|
|
return true;
|
|
} else if (source.shellWorkspaceLaunch) {
|
|
this._metaWorkspace.activate(time);
|
|
source.shellWorkspaceLaunch();
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
};
|
|
|
|
Signals.addSignalMethods(Workspace.prototype);
|
|
|
|
function Workspaces(width, height, x, y) {
|
|
this._init(width, height, x, y);
|
|
}
|
|
|
|
Workspaces.prototype = {
|
|
_init : function(width, height, x, y) {
|
|
this.actor = new Clutter.Group();
|
|
|
|
this._width = width;
|
|
this._height = height;
|
|
this._x = x;
|
|
this._y = y;
|
|
|
|
this._windowSelectionAppId = null;
|
|
|
|
this._workspaces = [];
|
|
|
|
this._highlightWindow = null;
|
|
|
|
let activeWorkspaceIndex = global.screen.get_active_workspace_index();
|
|
let activeWorkspace;
|
|
|
|
// Create and position workspace objects
|
|
for (let w = 0; w < global.screen.n_workspaces; w++) {
|
|
this._addWorkspaceActor(w);
|
|
if (w == activeWorkspaceIndex) {
|
|
activeWorkspace = this._workspaces[w];
|
|
activeWorkspace.setSelected(true);
|
|
}
|
|
}
|
|
activeWorkspace.actor.raise_top();
|
|
this._positionWorkspaces();
|
|
|
|
let lastWorkspace = this._workspaces[this._workspaces.length - 1];
|
|
lastWorkspace.updateRemovable(true);
|
|
|
|
// Position/scale the desktop windows and their children after the
|
|
// workspaces have been created. This cannot be done first because
|
|
// window movement depends on the Workspaces object being accessible
|
|
// as an Overview member.
|
|
this._overviewShowingId =
|
|
Main.overview.connect('showing',
|
|
Lang.bind(this, function() {
|
|
this._onRestacked();
|
|
for (let w = 0; w < this._workspaces.length; w++)
|
|
this._workspaces[w].zoomToOverview();
|
|
}));
|
|
|
|
// Track changes to the number of workspaces
|
|
this._nWorkspacesNotifyId =
|
|
global.screen.connect('notify::n-workspaces',
|
|
Lang.bind(this, this._workspacesChanged));
|
|
this._switchWorkspaceNotifyId =
|
|
global.window_manager.connect('switch-workspace',
|
|
Lang.bind(this, this._activeWorkspaceChanged));
|
|
this._restackedNotifyId =
|
|
global.screen.connect('restacked',
|
|
Lang.bind(this, this._onRestacked));
|
|
},
|
|
|
|
_lookupWorkspaceForMetaWindow: function (metaWindow) {
|
|
for (let i = 0; i < this._workspaces.length; i++) {
|
|
if (this._workspaces[i].containsMetaWindow(metaWindow))
|
|
return this._workspaces[i];
|
|
}
|
|
return null;
|
|
},
|
|
|
|
_lookupCloneForMetaWindow: function (metaWindow) {
|
|
for (let i = 0; i < this._workspaces.length; i++) {
|
|
let clone = this._workspaces[i].lookupCloneForMetaWindow(metaWindow);
|
|
if (clone)
|
|
return clone;
|
|
}
|
|
return null;
|
|
},
|
|
|
|
setHighlightWindow: function (metaWindow) {
|
|
// Looping over all workspaces is easier than keeping track of the last
|
|
// highlighted window while trying to handle the window or workspace possibly
|
|
// going away.
|
|
for (let i = 0; i < this._workspaces.length; i++) {
|
|
this._workspaces[i].setHighlightWindow(null);
|
|
}
|
|
if (metaWindow != null) {
|
|
let workspace = this._lookupWorkspaceForMetaWindow(metaWindow);
|
|
workspace.setHighlightWindow(metaWindow);
|
|
}
|
|
},
|
|
|
|
_clearApplicationWindowSelection: function(reposition) {
|
|
if (this._windowSelectionAppId == null)
|
|
return;
|
|
this._windowSelectionAppId = null;
|
|
|
|
for (let i = 0; i < this._workspaces.length; i++) {
|
|
this._workspaces[i].setLightboxMode(false);
|
|
this._workspaces[i].setShowOnlyWindows(null, reposition);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* setApplicationWindowSelection:
|
|
* @appid: Application identifier string
|
|
*
|
|
* Enter a mode which shows only the windows owned by the
|
|
* given application, and allow highlighting of a specific
|
|
* window with setHighlightWindow().
|
|
*/
|
|
setApplicationWindowSelection: function (appId) {
|
|
if (appId == null) {
|
|
this._clearApplicationWindowSelection(true);
|
|
return;
|
|
}
|
|
|
|
if (appId == this._windowSelectionAppId)
|
|
return;
|
|
|
|
this._windowSelectionAppId = appId;
|
|
|
|
let appSys = Shell.AppMonitor.get_default();
|
|
|
|
let showOnlyWindows = {};
|
|
let windows = appSys.get_windows_for_app(appId);
|
|
for (let i = 0; i < windows.length; i++) {
|
|
showOnlyWindows[windows[i]] = 1;
|
|
}
|
|
|
|
for (let i = 0; i < this._workspaces.length; i++) {
|
|
this._workspaces[i].setLightboxMode(true);
|
|
this._workspaces[i].setShowOnlyWindows(showOnlyWindows, true);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* activateWindowFromOverview:
|
|
* @metaWindow: A #MetaWindow
|
|
* @time: Integer even timestamp
|
|
*
|
|
* This function exits the overview, switching to the given @metaWindow.
|
|
* If an application filter is in effect, it will be cleared.
|
|
*/
|
|
activateWindowFromOverview: function (metaWindow, time) {
|
|
if (this._windowSelectionAppId != null) {
|
|
this._clearApplicationWindowSelection(false);
|
|
}
|
|
|
|
Main.activateWindow(metaWindow, time);
|
|
Main.overview.hide();
|
|
},
|
|
|
|
hide : function() {
|
|
let activeWorkspaceIndex = global.screen.get_active_workspace_index();
|
|
let activeWorkspace = this._workspaces[activeWorkspaceIndex];
|
|
|
|
this._positionWorkspaces();
|
|
activeWorkspace.actor.raise_top();
|
|
|
|
for (let w = 0; w < this._workspaces.length; w++)
|
|
this._workspaces[w].zoomFromOverview();
|
|
},
|
|
|
|
destroy : function() {
|
|
for (let w = 0; w < this._workspaces.length; w++)
|
|
this._workspaces[w].destroy();
|
|
this._workspaces = [];
|
|
|
|
this.actor.destroy();
|
|
this.actor = null;
|
|
|
|
Main.overview.disconnect(this._overviewShowingId);
|
|
global.screen.disconnect(this._nWorkspacesNotifyId);
|
|
global.window_manager.disconnect(this._switchWorkspaceNotifyId);
|
|
global.screen.disconnect(this._restackedNotifyId);
|
|
},
|
|
|
|
getScale : function() {
|
|
return this._workspaces[0].scale;
|
|
},
|
|
|
|
// Get the grid position of the active workspace.
|
|
getActiveWorkspacePosition : function() {
|
|
let activeWorkspaceIndex = global.screen.get_active_workspace_index();
|
|
let activeWorkspace = this._workspaces[activeWorkspaceIndex];
|
|
|
|
return [activeWorkspace.gridX, activeWorkspace.gridY];
|
|
},
|
|
|
|
// Assign grid positions to workspaces. We can't just do a simple
|
|
// row-major or column-major numbering, because we don't want the
|
|
// existing workspaces to get rearranged when we add a row or
|
|
// column. So we alternate between adding to rows and adding to
|
|
// columns. (So, eg, when going from a 2x2 grid of 4 workspaces to
|
|
// a 3x2 grid of 5 workspaces, the 4 existing workspaces stay
|
|
// where they are, and the 5th one is added to the end of the
|
|
// first row.)
|
|
//
|
|
// FIXME: need to make the metacity internal layout agree with this!
|
|
_positionWorkspaces : function() {
|
|
let gridWidth = Math.ceil(Math.sqrt(this._workspaces.length));
|
|
let gridHeight = Math.ceil(this._workspaces.length / gridWidth);
|
|
|
|
let wsWidth = (this._width - (gridWidth - 1) * GRID_SPACING) / gridWidth;
|
|
let wsHeight = (this._height - (gridHeight - 1) * GRID_SPACING) / gridHeight;
|
|
let scale = wsWidth / global.screen_width;
|
|
|
|
let span = 1, n = 0, row = 0, col = 0, horiz = true;
|
|
|
|
for (let w = 0; w < this._workspaces.length; w++) {
|
|
let workspace = this._workspaces[w];
|
|
|
|
workspace.gridRow = row;
|
|
workspace.gridCol = col;
|
|
|
|
workspace.gridX = this._x + workspace.gridCol * (wsWidth + GRID_SPACING);
|
|
workspace.gridY = this._y + workspace.gridRow * (wsHeight + GRID_SPACING);
|
|
workspace.scale = scale;
|
|
|
|
if (horiz) {
|
|
col++;
|
|
if (col == span) {
|
|
row = 0;
|
|
horiz = false;
|
|
}
|
|
} else {
|
|
row++;
|
|
if (row == span) {
|
|
col = 0;
|
|
horiz = true;
|
|
span++;
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
_workspacesChanged : function() {
|
|
let oldNumWorkspaces = this._workspaces.length;
|
|
let newNumWorkspaces = global.screen.n_workspaces;
|
|
|
|
if (oldNumWorkspaces == newNumWorkspaces)
|
|
return;
|
|
|
|
let oldScale = this._workspaces[0].scale;
|
|
let oldGridWidth = Math.ceil(Math.sqrt(oldNumWorkspaces));
|
|
let oldGridHeight = Math.ceil(oldNumWorkspaces / oldGridWidth);
|
|
let lostWorkspaces = [];
|
|
|
|
// The old last workspace is no longer removable.
|
|
this._workspaces[oldNumWorkspaces - 1].updateRemovable();
|
|
|
|
if (newNumWorkspaces > oldNumWorkspaces) {
|
|
// Create new workspace groups
|
|
for (let w = oldNumWorkspaces; w < newNumWorkspaces; w++) {
|
|
this._addWorkspaceActor(w);
|
|
}
|
|
|
|
} else {
|
|
// Truncate the list of workspaces
|
|
// FIXME: assumes that the workspaces are being removed from
|
|
// the end of the list, not the start/middle
|
|
lostWorkspaces = this._workspaces.splice(newNumWorkspaces);
|
|
}
|
|
|
|
// The new last workspace may be removable
|
|
let newLastWorkspace = this._workspaces[this._workspaces.length - 1];
|
|
newLastWorkspace.updateRemovable();
|
|
|
|
// Figure out the new layout
|
|
this._positionWorkspaces();
|
|
let newScale = this._workspaces[0].scale;
|
|
let newGridWidth = Math.ceil(Math.sqrt(newNumWorkspaces));
|
|
let newGridHeight = Math.ceil(newNumWorkspaces / newGridWidth);
|
|
|
|
if (newGridWidth != oldGridWidth || newGridHeight != oldGridHeight) {
|
|
// We need to resize/move the existing workspaces/windows
|
|
let existingWorkspaces = Math.min(oldNumWorkspaces, newNumWorkspaces);
|
|
for (let w = 0; w < existingWorkspaces; w++)
|
|
this._workspaces[w].resizeToGrid(oldScale);
|
|
}
|
|
|
|
if (newScale != oldScale) {
|
|
// The workspace scale affects window size/positioning because we clamp
|
|
// window size to a 1:1 ratio and never scale them up
|
|
let existingWorkspaces = Math.min(oldNumWorkspaces, newNumWorkspaces);
|
|
for (let w = 0; w < existingWorkspaces; w++)
|
|
this._workspaces[w].positionWindows(false);
|
|
}
|
|
|
|
if (newNumWorkspaces > oldNumWorkspaces) {
|
|
// Slide new workspaces in from offscreen
|
|
for (let w = oldNumWorkspaces; w < newNumWorkspaces; w++)
|
|
this._workspaces[w].slideIn(oldScale);
|
|
} else {
|
|
// Slide old workspaces out
|
|
for (let w = 0; w < lostWorkspaces.length; w++) {
|
|
let workspace = lostWorkspaces[w];
|
|
workspace.slideOut(function () { workspace.destroy(); });
|
|
}
|
|
|
|
// FIXME: deal with windows on the lost workspaces
|
|
}
|
|
|
|
// Reset the selection state; if we went from > 1 workspace to 1,
|
|
// this has the side effect of removing the frame border
|
|
let activeIndex = global.screen.get_active_workspace_index();
|
|
this._workspaces[activeIndex].setSelected(true);
|
|
},
|
|
|
|
_activeWorkspaceChanged : function(wm, from, to, direction) {
|
|
this._workspaces[from].setSelected(false);
|
|
this._workspaces[to].setSelected(true);
|
|
},
|
|
|
|
_addWorkspaceActor : function(workspaceNum) {
|
|
let workspace = new Workspace(workspaceNum, this.actor);
|
|
this._workspaces[workspaceNum] = workspace;
|
|
this.actor.add_actor(workspace.actor);
|
|
},
|
|
|
|
_onRestacked: function() {
|
|
let stack = global.get_windows();
|
|
let stackIndices = {};
|
|
|
|
for (let i = 0; i < stack.length; i++) {
|
|
// Use the stable sequence for an integer to use as a hash key
|
|
stackIndices[stack[i].get_meta_window().get_stable_sequence()] = i;
|
|
}
|
|
|
|
for (let i = 0; i < this._workspaces.length; i++)
|
|
this._workspaces[i].syncStacking(stackIndices);
|
|
},
|
|
|
|
// Handles a drop onto the (+) button; assumes the new workspace
|
|
// has already been added
|
|
acceptNewWorkspaceDrop : function(source, dropActor, x, y, time) {
|
|
return this._workspaces[this._workspaces.length - 1].acceptDrop(source, dropActor, x, y, time);
|
|
}
|
|
};
|
|
|
|
// Create a SpecialPropertyModifier to let us move windows in a
|
|
// straight line on the screen even though their containing workspace
|
|
// is also moving.
|
|
Tweener.registerSpecialPropertyModifier("workspace_relative", _workspaceRelativeModifier, _workspaceRelativeGet);
|
|
|
|
function _workspaceRelativeModifier(workspace) {
|
|
let [startX, startY] = Main.overview.getPosition();
|
|
let overviewPosX, overviewPosY, overviewScale;
|
|
|
|
if (!workspace)
|
|
return [];
|
|
|
|
if (workspace.leavingOverview) {
|
|
let [zoomedInX, zoomedInY] = Main.overview.getZoomedInPosition();
|
|
overviewPosX = { begin: startX, end: zoomedInX };
|
|
overviewPosY = { begin: startY, end: zoomedInY };
|
|
overviewScale = { begin: Main.overview.getScale(),
|
|
end: Main.overview.getZoomedInScale() };
|
|
} else {
|
|
overviewPosX = { begin: startX, end: 0 };
|
|
overviewPosY = { begin: startY, end: 0 };
|
|
overviewScale = { begin: Main.overview.getScale(), end: 1 };
|
|
}
|
|
|
|
return [ { name: "x",
|
|
parameters: { workspacePos: workspace.gridX,
|
|
overviewPos: overviewPosX,
|
|
overviewScale: overviewScale } },
|
|
{ name: "y",
|
|
parameters: { workspacePos: workspace.gridY,
|
|
overviewPos: overviewPosY,
|
|
overviewScale: overviewScale } }
|
|
];
|
|
}
|
|
|
|
function _workspaceRelativeGet(begin, end, time, params) {
|
|
let curOverviewPos = (1 - time) * params.overviewPos.begin +
|
|
time * params.overviewPos.end;
|
|
let curOverviewScale = (1 - time) * params.overviewScale.begin +
|
|
time * params.overviewScale.end;
|
|
|
|
// Calculate the screen position of the window.
|
|
let screen = (1 - time) *
|
|
((begin + params.workspacePos) * params.overviewScale.begin +
|
|
params.overviewPos.begin) +
|
|
time *
|
|
((end + params.workspacePos) * params.overviewScale.end +
|
|
params.overviewPos.end);
|
|
|
|
// Return the workspace coordinates.
|
|
return (screen - curOverviewPos) / curOverviewScale - params.workspacePos;
|
|
}
|