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gnome-shell/js/ui/workspaces.js
Colin Walters 05812ef7f9 [AppWell] Enable lightboxing immediately on popup 
Rather than starting lightboxing only when the mouse enters the
menu, start it when an application filter is set.

Also delete a stale function in WindowClone from previous work.

http://bugzilla.gnome.org/show_bug.cgi?id=594555
2009-09-09 11:40:09 -04:00

1422 lines
52 KiB
JavaScript
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/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
const Big = imports.gi.Big;
const Clutter = imports.gi.Clutter;
const GdkPixbuf = imports.gi.GdkPixbuf;
const Gtk = imports.gi.Gtk;
const Lang = imports.lang;
const Mainloop = imports.mainloop;
const Meta = imports.gi.Meta;
const Pango = imports.gi.Pango;
const Shell = imports.gi.Shell;
const Signals = imports.signals;
const DND = imports.ui.dnd;
const Main = imports.ui.main;
const Overview = imports.ui.overview;
const Panel = imports.ui.panel;
const Tweener = imports.ui.tweener;
const FOCUS_ANIMATION_TIME = 0.15;
const WINDOWCLONE_BG_COLOR = new Clutter.Color();
WINDOWCLONE_BG_COLOR.from_pixel(0x000000f0);
const WINDOWCLONE_TITLE_COLOR = new Clutter.Color();
WINDOWCLONE_TITLE_COLOR.from_pixel(0xffffffff);
const FRAME_COLOR = new Clutter.Color();
FRAME_COLOR.from_pixel(0xffffffff);
const LIGHTBOX_COLOR = new Clutter.Color();
LIGHTBOX_COLOR.from_pixel(0x00000044);
const SCROLL_SCALE_AMOUNT = 100 / 5;
const ZOOM_OVERLAY_FADE_TIME = 0.15;
// Define a layout scheme for small window counts. For larger
// counts we fall back to an algorithm. We need more schemes here
// unless we have a really good algorithm.
// Each triplet is [xCenter, yCenter, scale] where the scale
// is relative to the width of the workspace.
const POSITIONS = {
1: [[0.5, 0.5, 0.95]],
2: [[0.25, 0.5, 0.48], [0.75, 0.5, 0.48]],
3: [[0.25, 0.25, 0.48], [0.75, 0.25, 0.48], [0.5, 0.75, 0.48]],
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]],
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]]
};
function _interpolate(start, end, step) {
return start + (end - start) * step;
}
function _clamp(value, min, max) {
return Math.max(min, Math.min(max, value));
}
// Spacing between workspaces. At the moment, the same spacing is used
// in both zoomed-in and zoomed-out views; this is slightly
// metaphor-breaking, but the alternatives are also weird.
const GRID_SPACING = 15;
const FRAME_SIZE = GRID_SPACING / 3;
function ScaledPoint(x, y, scaleX, scaleY) {
[this.x, this.y, this.scaleX, this.scaleY] = arguments;
}
ScaledPoint.prototype = {
getPosition : function() {
return [this.x, this.y];
},
getScale : function() {
return [this.scaleX, this.scaleY];
},
setPosition : function(x, y) {
[this.x, this.y] = arguments;
},
setScale : function(scaleX, scaleY) {
[this.scaleX, this.scaleY] = arguments;
},
interpPosition : function(other, step) {
return [_interpolate(this.x, other.x, step),
_interpolate(this.y, other.y, step)];
},
interpScale : function(other, step) {
return [_interpolate(this.scaleX, other.scaleX, step),
_interpolate(this.scaleY, other.scaleY, step)];
}
};
function WindowClone(realWindow) {
this._init(realWindow);
}
WindowClone.prototype = {
_init : function(realWindow) {
this.actor = new Clutter.Clone({ source: realWindow.get_texture(),
reactive: true,
x: realWindow.x,
y: realWindow.y });
this.actor._delegate = this;
this.realWindow = realWindow;
this.metaWindow = realWindow.meta_window;
this.origX = realWindow.x;
this.origY = realWindow.y;
this._title = null;
this.actor.connect('button-release-event',
Lang.bind(this, this._onButtonRelease));
this.actor.connect('scroll-event',
Lang.bind(this, this._onScroll));
this.actor.connect('enter-event',
Lang.bind(this, this._onEnter));
this.actor.connect('leave-event',
Lang.bind(this, this._onLeave));
this._havePointer = false;
this._draggable = DND.makeDraggable(this.actor);
this._draggable.connect('drag-begin', Lang.bind(this, this._onDragBegin));
this._draggable.connect('drag-end', Lang.bind(this, this._onDragEnd));
this._inDrag = false;
},
setVisibleWithChrome: function(visible) {
if (visible) {
this.actor.show();
if (this._title)
this._title.show();
} else {
this.actor.hide();
if (this._title)
this._title.hide();
}
},
destroy: function () {
this.actor.destroy();
if (this._title)
this._title.destroy();
},
_onEnter: function (actor, event) {
// If the user drags faster than we can follow, he'll end up
// leaving the window temporarily and then re-entering it
if (this._inDrag)
return;
this._havePointer = true;
actor.raise_top();
this._updateTitle();
},
_onLeave: function (actor, event) {
// If the user drags faster than we can follow, he'll end up
// leaving the window temporarily and then re-entering it
if (this._inDrag)
return;
this._havePointer = false;
this._updateTitle();
if (this._zoomStep)
this._zoomEnd();
},
_onScroll : function (actor, event) {
let direction = event.get_scroll_direction();
if (direction == Clutter.ScrollDirection.UP) {
if (this._zoomStep == undefined)
this._zoomStart();
if (this._zoomStep < 100) {
this._zoomStep += SCROLL_SCALE_AMOUNT;
this._zoomUpdate();
}
} else if (direction == Clutter.ScrollDirection.DOWN) {
if (this._zoomStep > 0) {
this._zoomStep -= SCROLL_SCALE_AMOUNT;
this._zoomStep = Math.max(0, this._zoomStep);
this._zoomUpdate();
}
if (this._zoomStep <= 0.0)
this._zoomEnd();
}
},
_zoomUpdate : function () {
[this.actor.x, this.actor.y] = this._zoomGlobalOrig.interpPosition(this._zoomTarget, this._zoomStep / 100);
[this.actor.scale_x, this.actor.scale_y] = this._zoomGlobalOrig.interpScale(this._zoomTarget, this._zoomStep / 100);
let [width, height] = this.actor.get_transformed_size();
this.actor.x = _clamp(this.actor.x, 0, global.screen_width - width);
this.actor.y = _clamp(this.actor.y, Panel.PANEL_HEIGHT, global.screen_height - height);
},
_zoomStart : function () {
this._zoomOverlay = new Clutter.Rectangle({ reactive: true,
color: LIGHTBOX_COLOR,
border_width: 0,
x: 0,
y: 0,
width: global.screen_width,
height: global.screen_height,
opacity: 0 });
this._zoomOverlay.show();
global.stage.add_actor(this._zoomOverlay);
Tweener.addTween(this._zoomOverlay,
{ opacity: 255,
time: ZOOM_OVERLAY_FADE_TIME,
transition: "easeOutQuad"
});
this._zoomLocalOrig = new ScaledPoint(this.actor.x, this.actor.y, this.actor.scale_x, this.actor.scale_y);
this._zoomGlobalOrig = new ScaledPoint();
let parent = this._origParent = this.actor.get_parent();
[width, height] = this.actor.get_transformed_size();
this._zoomGlobalOrig.setPosition.apply(this._zoomGlobalOrig, this.actor.get_transformed_position());
this._zoomGlobalOrig.setScale(width / this.actor.width, height / this.actor.height);
this._zoomOverlay.raise_top();
this._zoomOverlay.show();
this.actor.reparent(global.stage);
[this.actor.x, this.actor.y] = this._zoomGlobalOrig.getPosition();
[this.actor.scale_x, this.actor.scale_y] = this._zoomGlobalOrig.getScale();
this.actor.raise_top();
this._zoomTarget = new ScaledPoint(0, 0, 1.0, 1.0);
this._zoomTarget.setPosition(this.actor.x - (this.actor.width - width) / 2, this.actor.y - (this.actor.height - height) / 2);
this._zoomStep = 0;
this._hideEventId = Main.overview.connect('hiding', Lang.bind(this, function () { this._zoomEnd(); }));
this._zoomUpdate();
},
_zoomEnd : function () {
this.actor.reparent(this._origParent);
[this.actor.x, this.actor.y] = this._zoomLocalOrig.getPosition();
[this.actor.scale_x, this.actor.scale_y] = this._zoomLocalOrig.getScale();
this._adjustTitle();
this._zoomOverlay.destroy();
Main.overview.disconnect(this._hideEventId);
this._zoomLocalPosition = undefined;
this._zoomLocalScale = undefined;
this._zoomGlobalPosition = undefined;
this._zoomGlobalScale = undefined;
this._zoomTargetPosition = undefined;
this._zoomStep = undefined;
this._zoomOverlay = undefined;
},
_onButtonRelease : function (actor, event) {
this.emit('selected', event.get_time());
},
_onDragBegin : function (draggable, time) {
this._inDrag = true;
this._updateTitle();
this.emit('drag-begin');
},
_onDragEnd : function (draggable, time, snapback) {
this._inDrag = false;
// Most likely, the clone is going to move away from the
// pointer now. But that won't cause a leave-event, so
// do this by hand. Of course, if the window only snaps
// back a short distance, this might be wrong, but it's
// better to have the label mysteriously missing than
// mysteriously present
this._havePointer = false;
this.emit('drag-end');
},
// Called by Tweener
onAnimationStart : function () {
this._updateTitle();
},
// Called by Tweener
onAnimationComplete : function () {
this._updateTitle();
this.actor.raise(this.stackAbove);
},
_createTitle : function () {
let window = this.realWindow;
let box = new Big.Box({ background_color : WINDOWCLONE_BG_COLOR,
y_align: Big.BoxAlignment.CENTER,
corner_radius: 5,
padding: 4,
spacing: 4,
orientation: Big.BoxOrientation.HORIZONTAL });
let title = new Clutter.Text({ color: WINDOWCLONE_TITLE_COLOR,
font_name: "Sans 12",
text: this.metaWindow.title,
ellipsize: Pango.EllipsizeMode.END
});
box.append(title, Big.BoxPackFlags.EXPAND);
// Get and cache the expected width (just the icon), with spacing, plus title
box.fullWidth = box.width;
box.hide(); // Hidden by default, show on mouseover
this._title = box;
// Make the title a sibling of the window
this.actor.get_parent().add_actor(box);
},
_adjustTitle : function () {
let title = this._title;
if (!title)
return;
let [cloneScreenWidth, cloneScreenHeight] = this.actor.get_transformed_size();
let [titleScreenWidth, titleScreenHeight] = title.get_transformed_size();
// Titles are supposed to be "full-size", so adjust its
// scale to counteract the scaling of its ancestor actors.
title.set_scale(title.width / titleScreenWidth * title.scale_x,
title.height / titleScreenHeight * title.scale_y);
title.width = Math.min(title.fullWidth, cloneScreenWidth);
let xoff = ((cloneScreenWidth - title.width) / 2) * title.scale_x;
title.set_position(this.actor.x + xoff, this.actor.y);
},
_showTitle : function () {
if (!this._title)
this._createTitle();
this._adjustTitle();
this._title.show();
this._title.raise(this.actor);
},
_hideTitle : function () {
if (!this._title)
return;
this._title.hide();
},
_updateTitle : function () {
let shouldShow = (this._havePointer &&
!this._inDrag &&
!Tweener.isTweening(this.actor));
if (shouldShow)
this._showTitle();
else
this._hideTitle();
}
};
Signals.addSignalMethods(WindowClone.prototype);
function DesktopClone(window) {
this._init(window);
}
DesktopClone.prototype = {
_init : function(window) {
if (window) {
this.actor = new Clutter.Clone({ source: window.get_texture(),
reactive: true });
} else {
this.actor = new Clutter.Rectangle({ color: global.stage.color,
reactive: true,
width: global.screen_width,
height: global.screen_height });
}
this.actor.connect('button-release-event',
Lang.bind(this, this._onButtonRelease));
},
_onButtonRelease : function (actor, event) {
this.emit('selected', event.get_time());
}
};
Signals.addSignalMethods(DesktopClone.prototype);
/**
* @workspaceNum: Workspace index
* @parentActor: The actor which will be the parent of this workspace;
* we need this in order to add chrome such as the icons
* on top of the windows without having them be scaled.
*/
function Workspace(workspaceNum, parentActor) {
this._init(workspaceNum, parentActor);
}
Workspace.prototype = {
_init : function(workspaceNum, parentActor) {
let me = this;
this.workspaceNum = workspaceNum;
this._metaWorkspace = global.screen.get_workspace_by_index(workspaceNum);
this.parentActor = parentActor;
this.actor = new Clutter.Group();
this.actor._delegate = this;
// Auto-sizing is unreliable in the presence of ClutterClone, so rather than
// implicitly counting on the workspace actor to be sized to the size of the
// included desktop actor clone, set the size explicitly to the screen size.
// See http://bugzilla.openedhand.com/show_bug.cgi?id=1755
this.actor.width = global.screen_width;
this.actor.height = global.screen_height;
this.scale = 1.0;
this._lightbox = new Clutter.Rectangle({ color: LIGHTBOX_COLOR });
this.actor.connect('notify::allocation', Lang.bind(this, function () {
let [width, height] = this.actor.get_size();
this._lightbox.set_size(width, height);
}));
this.actor.add_actor(this._lightbox);
this._lightbox.hide();
let windows = global.get_windows().filter(this._isMyWindow, this);
// Find the desktop window
for (let i = 0; i < windows.length; i++) {
if (windows[i].get_window_type() == Meta.WindowType.DESKTOP) {
this._desktop = new DesktopClone(windows[i]);
break;
}
}
// If there wasn't one, fake it
if (!this._desktop)
this._desktop = new DesktopClone();
this._desktop.connect('selected',
Lang.bind(this,
function(clone, time) {
this._metaWorkspace.activate(time);
Main.overview.hide();
}));
this.actor.add_actor(this._desktop.actor);
// Create clones for remaining windows that should be
// visible in the Overview
this._windows = [this._desktop];
this._windowIcons = [ null ];
for (let i = 0; i < windows.length; i++) {
if (this._isOverviewWindow(windows[i])) {
this._addWindowClone(windows[i]);
}
}
// A filter for what windows we display
this._showOnlyWindows = null;
// Track window changes
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._removeButton = null;
this._visible = false;
this._frame = null;
this.leavingOverview = false;
},
updateRemovable : function() {
let removable = (this._windows.length == 1 /* just desktop */ &&
this.workspaceNum != 0 &&
this.workspaceNum == global.screen.n_workspaces - 1);
if (removable) {
if (this._removeButton)
return;
this._removeButton = new Clutter.Texture({ width: Overview.addRemoveButtonSize,
height: Overview.addRemoveButtonSize,
reactive: true
});
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: 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) {
this._showOnlyWindows = showOnlyWindows;
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.setHighlightWindow(null);
this._lightbox.show();
} else {
this._lightbox.hide();
}
},
setHighlightWindow: function (metaWindow) {
for (let i = 0; i < this._windows.length; i++) {
this._windows[i].actor.lower(this._lightbox);
}
if (metaWindow != null) {
let clone = this.lookupCloneForMetaWindow(metaWindow);
clone.actor.raise(this._lightbox);
}
},
_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);
},
// Reposition all windows in their zoomed-to-Overview position. if workspaceZooming
// is true, then the workspace is moving at the same time and we need to take
// that into account
positionWindows : function(workspaceZooming) {
let totalVisible = 0;
for (let i = 1; i < this._windows.length; i++) {
let clone = this._windows[i];
if (this._showOnlyWindows != null && !(clone.metaWindow in this._showOnlyWindows))
continue;
totalVisible += 1;
}
let previousWindow = this._windows[0];
let visibleIndex = 0;
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)) {
clone.setVisibleWithChrome(false);
icon.hide();
continue;
} else {
clone.setVisibleWithChrome(true);
}
clone.stackAbove = previousWindow.actor;
previousWindow = clone;
visibleIndex += 1;
let [xCenter, yCenter, fraction] = this._computeWindowPosition(visibleIndex, totalVisible);
xCenter = xCenter * global.screen_width;
yCenter = yCenter * global.screen_height;
// clone.actor.width/height aren't reliably set at this point for
// a new window - they're only set when the window contents are
// initially updated prior to painting.
let cloneRect = new Meta.Rectangle();
clone.realWindow.meta_window.get_outer_rect(cloneRect);
let desiredWidth = global.screen_width * fraction;
let desiredHeight = global.screen_height * fraction;
let scale = Math.min(desiredWidth / cloneRect.width, desiredHeight / cloneRect.height, 1.0 / this.scale);
icon.hide();
Tweener.addTween(clone.actor,
{ x: xCenter - 0.5 * scale * cloneRect.width,
y: yCenter - 0.5 * scale * cloneRect.height,
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);
})
});
}
},
_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);
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;
},
_computeWindowPosition : function(index, totalWindows) {
// ignore this._windows[0], which is the desktop
let windowIndex = index - 1;
let numberOfWindows = totalWindows;
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];
},
_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._appIdFilter = null;
this._width = width;
this._height = height;
this._x = x;
this._y = y;
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(global);
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.
Main.overview.connect('showing',
Lang.bind(this, function() {
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));
},
_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);
}
},
beginApplicationWindowSelection: function (appId) {
let appSys = Shell.AppMonitor.get_default();
let showOnlyWindows;
if (appId) {
let windows = appSys.get_windows_for_app(appId);
showOnlyWindows = {};
for (let i = 0; i < windows.length; i++) {
showOnlyWindows[windows[i]] = 1;
}
} else {
showOnlyWindows = null;
}
this._appIdFilter = appId;
for (let i = 0; i < this._workspaces.length; i++) {
this._workspaces[i].setLightboxMode(showOnlyWindows != null);
this._workspaces[i].setShowOnlyWindows(showOnlyWindows);
}
},
// Should only be called from active Overview context
activateWindowFromOverview: function (metaWindow, time) {
let activeWorkspaceNum = global.screen.get_active_workspace_index();
let windowWorkspaceNum = metaWindow.get_workspace().index();
let clone = this._lookupCloneForMetaWindow (metaWindow);
clone.actor.raise_top();
if (windowWorkspaceNum != activeWorkspaceNum) {
let workspace = global.screen.get_workspace_by_index(windowWorkspaceNum);
workspace.activate_with_focus(metaWindow, time);
} else {
metaWindow.activate(time);
}
},
hide : function() {
let activeWorkspaceIndex = global.screen.get_active_workspace_index();
let activeWorkspace = this._workspaces[activeWorkspaceIndex];
this._positionWorkspaces(global);
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;
global.screen.disconnect(this._nWorkspacesNotifyId);
global.window_manager.disconnect(this._switchWorkspaceNotifyId);
},
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(global) {
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(global);
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);
},
// 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;
}
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