a6f39a12d7
We are not resetting the opacity when we are not animating, which can cause a hidden window to end up with opacity 0 if we remove the tween to early.
1642 lines
58 KiB
JavaScript
1642 lines
58 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
|
|
|
|
const Clutter = imports.gi.Clutter;
|
|
const Lang = imports.lang;
|
|
const Mainloop = imports.mainloop;
|
|
const Meta = imports.gi.Meta;
|
|
const Pango = imports.gi.Pango;
|
|
const Shell = imports.gi.Shell;
|
|
const St = imports.gi.St;
|
|
const Signals = imports.signals;
|
|
|
|
const DND = imports.ui.dnd;
|
|
const Lightbox = imports.ui.lightbox;
|
|
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 WINDOW_DND_SIZE = 256;
|
|
|
|
const SCROLL_SCALE_AMOUNT = 100 / 5;
|
|
|
|
const WINDOW_CLONE_MAXIMUM_SCALE = 0.7;
|
|
|
|
const LIGHTBOX_FADE_TIME = 0.1;
|
|
const CLOSE_BUTTON_FADE_TIME = 0.1;
|
|
|
|
const DRAGGING_WINDOW_OPACITY = 100;
|
|
|
|
// When calculating a layout, we calculate the scale of windows and the percent
|
|
// of the available area the new layout uses. If the values for the new layout,
|
|
// when weighted with the values as below, are worse than the previous layout's,
|
|
// we stop looking for a new layout and use the previous layout.
|
|
// Otherwise, we keep looking for a new layout.
|
|
const LAYOUT_SCALE_WEIGHT = 1;
|
|
const LAYOUT_SPACE_WEIGHT = 0.1;
|
|
|
|
function _interpolate(start, end, step) {
|
|
return start + (end - start) * step;
|
|
}
|
|
|
|
const WindowClone = new Lang.Class({
|
|
Name: 'WindowClone',
|
|
|
|
_init : function(realWindow, workspace) {
|
|
this.realWindow = realWindow;
|
|
this.metaWindow = realWindow.meta_window;
|
|
this.metaWindow._delegate = this;
|
|
this._workspace = workspace;
|
|
|
|
let [borderX, borderY] = this._getInvisibleBorderPadding();
|
|
this._windowClone = new Clutter.Clone({ source: realWindow.get_texture(),
|
|
x: -borderX,
|
|
y: -borderY });
|
|
// We expect this.actor to be used for all interaction rather than
|
|
// this._windowClone; as the former is reactive and the latter
|
|
// is not, this just works for most cases. However, for DND all
|
|
// actors are picked, so DND operations would operate on the clone.
|
|
// To avoid this, we hide it from pick.
|
|
Shell.util_set_hidden_from_pick(this._windowClone, true);
|
|
|
|
this.origX = realWindow.x + borderX;
|
|
this.origY = realWindow.y + borderY;
|
|
|
|
let outerRect = realWindow.meta_window.get_outer_rect();
|
|
|
|
// The MetaShapedTexture that we clone has a size that includes
|
|
// the invisible border; this is inconvenient; rather than trying
|
|
// to compensate all over the place we insert a ClutterActor into
|
|
// the hierarchy that is sized to only the visible portion.
|
|
this.actor = new Clutter.Actor({ reactive: true,
|
|
x: this.origX,
|
|
y: this.origY,
|
|
width: outerRect.width,
|
|
height: outerRect.height });
|
|
|
|
this.actor.add_child(this._windowClone);
|
|
|
|
this.actor._delegate = this;
|
|
|
|
this._slot = [0, 0, 0, 0];
|
|
this._dragSlot = [0, 0, 0, 0];
|
|
this._stackAbove = null;
|
|
|
|
this._sizeChangedId = this.realWindow.connect('size-changed',
|
|
Lang.bind(this, this._onRealWindowSizeChanged));
|
|
this._realWindowDestroyId = this.realWindow.connect('destroy',
|
|
Lang.bind(this, this._disconnectRealWindowSignals));
|
|
|
|
let clickAction = new Clutter.ClickAction();
|
|
clickAction.connect('clicked', Lang.bind(this, this._onClicked));
|
|
clickAction.connect('long-press', Lang.bind(this, this._onLongPress));
|
|
|
|
this.actor.add_action(clickAction);
|
|
|
|
this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
|
|
|
|
this._draggable = DND.makeDraggable(this.actor,
|
|
{ restoreOnSuccess: true,
|
|
manualMode: true,
|
|
dragActorMaxSize: WINDOW_DND_SIZE,
|
|
dragActorOpacity: DRAGGING_WINDOW_OPACITY });
|
|
this._draggable.connect('drag-begin', Lang.bind(this, this._onDragBegin));
|
|
this._draggable.connect('drag-cancelled', Lang.bind(this, this._onDragCancelled));
|
|
this._draggable.connect('drag-end', Lang.bind(this, this._onDragEnd));
|
|
this.inDrag = false;
|
|
|
|
this._selected = false;
|
|
},
|
|
|
|
set slot(slot) {
|
|
this._slot = slot;
|
|
},
|
|
|
|
get slot() {
|
|
if (this.inDrag)
|
|
return this._dragSlot;
|
|
else
|
|
return this._slot;
|
|
},
|
|
|
|
// Find the actor just below us, respecting reparenting done
|
|
// by DND code
|
|
getActualStackAbove: function() {
|
|
if (this._stackAbove == null)
|
|
return null;
|
|
|
|
if (this.inDrag || this._zooming) {
|
|
if (this._stackAbove._delegate)
|
|
return this._stackAbove._delegate.getActualStackAbove();
|
|
else
|
|
return null;
|
|
} else {
|
|
return this._stackAbove;
|
|
}
|
|
},
|
|
|
|
setStackAbove: function (actor) {
|
|
this._stackAbove = actor;
|
|
if (this.inDrag)
|
|
// We'll fix up the stack after the drag
|
|
return;
|
|
|
|
let actualAbove = this.getActualStackAbove();
|
|
if (actualAbove == null)
|
|
this.actor.lower_bottom();
|
|
else
|
|
this.actor.raise(actualAbove);
|
|
},
|
|
|
|
destroy: function () {
|
|
this.actor.destroy();
|
|
},
|
|
|
|
_disconnectRealWindowSignals: function() {
|
|
if (this._sizeChangedId > 0)
|
|
this.realWindow.disconnect(this._sizeChangedId);
|
|
this._sizeChangedId = 0;
|
|
|
|
if (this._realWindowDestroyId > 0)
|
|
this.realWindow.disconnect(this._realWindowDestroyId);
|
|
this._realWindowDestroyId = 0;
|
|
},
|
|
|
|
_getInvisibleBorderPadding: function() {
|
|
// We need to adjust the position of the actor because of the
|
|
// consequences of invisible borders -- in reality, the texture
|
|
// has an extra set of "padding" around it that we need to trim
|
|
// down.
|
|
|
|
// The outer rect paradoxically is the smaller rectangle,
|
|
// containing the positions of the visible frame. The input
|
|
// rect contains everything, including the invisible border
|
|
// padding.
|
|
let outerRect = this.metaWindow.get_outer_rect();
|
|
let inputRect = this.metaWindow.get_input_rect();
|
|
let [borderX, borderY] = [outerRect.x - inputRect.x,
|
|
outerRect.y - inputRect.y];
|
|
|
|
return [borderX, borderY];
|
|
},
|
|
|
|
_onRealWindowSizeChanged: function() {
|
|
let [borderX, borderY] = this._getInvisibleBorderPadding();
|
|
let outerRect = this.metaWindow.get_outer_rect();
|
|
this.actor.set_size(outerRect.width, outerRect.height);
|
|
this._windowClone.set_position(-borderX, -borderY);
|
|
this.emit('size-changed');
|
|
},
|
|
|
|
_onDestroy: function() {
|
|
this._disconnectRealWindowSignals();
|
|
|
|
this.metaWindow._delegate = null;
|
|
this.actor._delegate = null;
|
|
|
|
if (this.inDrag) {
|
|
this.emit('drag-end');
|
|
this.inDrag = false;
|
|
}
|
|
|
|
this.disconnectAll();
|
|
},
|
|
|
|
_onClicked: function(action, actor) {
|
|
this._selected = true;
|
|
this.emit('selected', global.get_current_time());
|
|
},
|
|
|
|
_onLongPress: function(action, actor, state) {
|
|
// Take advantage of the Clutter policy to consider
|
|
// a long-press canceled when the pointer movement
|
|
// exceeds dnd-drag-threshold to manually start the drag
|
|
if (state == Clutter.LongPressState.CANCEL) {
|
|
// A click cancels a long-press before any click handler is
|
|
// run - make sure to not start a drag in that case
|
|
Meta.later_add(Meta.LaterType.BEFORE_REDRAW, Lang.bind(this,
|
|
function() {
|
|
if (this._selected)
|
|
return;
|
|
let [x, y] = action.get_coords();
|
|
action.release();
|
|
this._draggable.startDrag(x, y, global.get_current_time());
|
|
}));
|
|
}
|
|
return true;
|
|
},
|
|
|
|
_onDragBegin : function (draggable, time) {
|
|
this._dragSlot = this._slot;
|
|
[this.dragOrigX, this.dragOrigY] = this.actor.get_position();
|
|
this.dragOrigScale = this.actor.scale_x;
|
|
this.inDrag = true;
|
|
this.emit('drag-begin');
|
|
},
|
|
|
|
handleDragOver : function(source, actor, x, y, time) {
|
|
return this._workspace.handleDragOver(source, actor, x, y, time);
|
|
},
|
|
|
|
acceptDrop : function(source, actor, x, y, time) {
|
|
this._workspace.acceptDrop(source, actor, x, y, time);
|
|
},
|
|
|
|
_onDragCancelled : function (draggable, time) {
|
|
this.emit('drag-cancelled');
|
|
},
|
|
|
|
_onDragEnd : function (draggable, time, snapback) {
|
|
this.inDrag = false;
|
|
|
|
// We may not have a parent if DnD completed successfully, in
|
|
// which case our clone will shortly be destroyed and replaced
|
|
// with a new one on the target workspace.
|
|
if (this.actor.get_parent() != null) {
|
|
if (this._stackAbove == null)
|
|
this.actor.lower_bottom();
|
|
else
|
|
this.actor.raise(this._stackAbove);
|
|
}
|
|
|
|
|
|
this.emit('drag-end');
|
|
}
|
|
});
|
|
Signals.addSignalMethods(WindowClone.prototype);
|
|
|
|
|
|
/**
|
|
* @windowClone: Corresponding window clone
|
|
* @parentActor: The actor which will be the parent of all overlay items
|
|
* such as app icon and window caption
|
|
*/
|
|
const WindowOverlay = new Lang.Class({
|
|
Name: 'WindowOverlay',
|
|
|
|
_init : function(windowClone, parentActor) {
|
|
let metaWindow = windowClone.metaWindow;
|
|
|
|
this._windowClone = windowClone;
|
|
this._parentActor = parentActor;
|
|
this._hidden = false;
|
|
|
|
this.borderSize = 0;
|
|
this.border = new St.Bin({ style_class: 'window-clone-border' });
|
|
|
|
let title = new St.Label({ style_class: 'window-caption',
|
|
text: metaWindow.title });
|
|
title.clutter_text.ellipsize = Pango.EllipsizeMode.END;
|
|
title._spacing = 0;
|
|
|
|
this._updateCaptionId = metaWindow.connect('notify::title',
|
|
Lang.bind(this, function(w) {
|
|
this.title.text = w.title;
|
|
this.relayout(false);
|
|
}));
|
|
|
|
let button = new St.Button({ style_class: 'window-close' });
|
|
button._overlap = 0;
|
|
|
|
this._idleToggleCloseId = 0;
|
|
button.connect('clicked', Lang.bind(this, this._closeWindow));
|
|
|
|
windowClone.actor.connect('destroy', Lang.bind(this, this._onDestroy));
|
|
windowClone.actor.connect('enter-event',
|
|
Lang.bind(this, this._onEnter));
|
|
windowClone.actor.connect('leave-event',
|
|
Lang.bind(this, this._onLeave));
|
|
|
|
this._windowAddedId = 0;
|
|
|
|
button.hide();
|
|
|
|
this.title = title;
|
|
this.closeButton = button;
|
|
|
|
parentActor.add_actor(this.title);
|
|
parentActor.add_actor(this.border);
|
|
parentActor.add_actor(this.closeButton);
|
|
title.connect('style-changed',
|
|
Lang.bind(this, this._onStyleChanged));
|
|
button.connect('style-changed',
|
|
Lang.bind(this, this._onStyleChanged));
|
|
this.border.connect('style-changed', Lang.bind(this, this._onStyleChanged));
|
|
// force a style change if we are already on a stage - otherwise
|
|
// the signal will be emitted normally when we are added
|
|
if (parentActor.get_stage())
|
|
this._onStyleChanged();
|
|
},
|
|
|
|
hide: function() {
|
|
this._hidden = true;
|
|
this.title.hide();
|
|
|
|
this.hideCloseButton();
|
|
},
|
|
|
|
show: function() {
|
|
this._hidden = false;
|
|
|
|
this.title.show();
|
|
if (this._windowClone.actor.has_pointer)
|
|
this._animateVisible();
|
|
},
|
|
|
|
fadeIn: function() {
|
|
if (!this._hidden)
|
|
return;
|
|
|
|
this.show();
|
|
this.title.opacity = 0;
|
|
this._parentActor.raise_top();
|
|
Tweener.addTween(this.title,
|
|
{ opacity: 255,
|
|
time: CLOSE_BUTTON_FADE_TIME,
|
|
transition: 'easeOutQuad' });
|
|
},
|
|
|
|
chromeHeights: function () {
|
|
return [Math.max(this.borderSize, this.closeButton.height - this.closeButton._overlap),
|
|
this.title.height + this.title._spacing];
|
|
},
|
|
|
|
chromeWidths: function () {
|
|
return [this.borderSize,
|
|
Math.max(this.borderSize, this.closeButton.width - this.closeButton._overlap)];
|
|
},
|
|
|
|
relayout: function(animate) {
|
|
let button = this.closeButton;
|
|
let title = this.title;
|
|
let border = this.border;
|
|
|
|
Tweener.removeTweens(button);
|
|
Tweener.removeTweens(title);
|
|
Tweener.removeTweens(border);
|
|
|
|
let [cloneX, cloneY, cloneWidth, cloneHeight] = this._windowClone.slot;
|
|
|
|
let layout = Meta.prefs_get_button_layout();
|
|
let side = layout.left_buttons.indexOf(Meta.ButtonFunction.CLOSE) > -1 ? St.Side.LEFT : St.Side.RIGHT;
|
|
|
|
let buttonX;
|
|
let buttonY = cloneY - (button.height - button._overlap);
|
|
if (side == St.Side.LEFT)
|
|
buttonX = cloneX - (button.width - button._overlap);
|
|
else
|
|
buttonX = cloneX + (cloneWidth - button._overlap);
|
|
|
|
if (animate)
|
|
this._animateOverlayActor(button, Math.floor(buttonX), Math.floor(buttonY), button.width);
|
|
else
|
|
button.set_position(Math.floor(buttonX), Math.floor(buttonY));
|
|
|
|
// Clutter.Actor.get_preferred_width() will return the fixed width if one
|
|
// is set, so we need to reset the width by calling set_width(-1), to forward
|
|
// the call down to StLabel.
|
|
// We also need to save and restore the current width, otherwise the animation
|
|
// starts from the wrong point.
|
|
let prevTitleWidth = title.width;
|
|
title.set_width(-1);
|
|
let [titleMinWidth, titleNatWidth] = title.get_preferred_width(-1);
|
|
let titleWidth = Math.max(titleMinWidth, Math.min(titleNatWidth, cloneWidth));
|
|
title.width = prevTitleWidth;
|
|
|
|
let titleX = cloneX + (cloneWidth - titleWidth) / 2;
|
|
let titleY = cloneY + cloneHeight + title._spacing;
|
|
|
|
if (animate)
|
|
this._animateOverlayActor(title, Math.floor(titleX), Math.floor(titleY), titleWidth);
|
|
else {
|
|
title.width = titleWidth;
|
|
title.set_position(Math.floor(titleX), Math.floor(titleY));
|
|
}
|
|
|
|
let borderX = cloneX - this.borderSize;
|
|
let borderY = cloneY - this.borderSize;
|
|
let borderWidth = cloneWidth + 2 * this.borderSize;
|
|
let borderHeight = cloneHeight + 2 * this.borderSize;
|
|
|
|
if (animate) {
|
|
this._animateOverlayActor(this.border, borderX, borderY,
|
|
borderWidth, borderHeight);
|
|
} else {
|
|
this.border.set_position(borderX, borderY);
|
|
this.border.set_size(borderWidth, borderHeight);
|
|
}
|
|
},
|
|
|
|
_animateOverlayActor: function(actor, x, y, width, height) {
|
|
let params = { x: x,
|
|
y: y,
|
|
width: width,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: 'easeOutQuad' };
|
|
|
|
if (height !== undefined)
|
|
params.height = height;
|
|
|
|
Tweener.addTween(actor, params);
|
|
},
|
|
|
|
_closeWindow: function(actor) {
|
|
let metaWindow = this._windowClone.metaWindow;
|
|
this._workspace = metaWindow.get_workspace();
|
|
|
|
this._windowAddedId = this._workspace.connect('window-added',
|
|
Lang.bind(this,
|
|
this._onWindowAdded));
|
|
|
|
metaWindow.delete(global.get_current_time());
|
|
},
|
|
|
|
_onWindowAdded: function(workspace, win) {
|
|
let metaWindow = this._windowClone.metaWindow;
|
|
|
|
if (win.get_transient_for() == metaWindow) {
|
|
workspace.disconnect(this._windowAddedId);
|
|
this._windowAddedId = 0;
|
|
|
|
// use an idle handler to avoid mapping problems -
|
|
// see comment in Workspace._windowAdded
|
|
Mainloop.idle_add(Lang.bind(this,
|
|
function() {
|
|
this._windowClone.emit('selected');
|
|
return false;
|
|
}));
|
|
}
|
|
},
|
|
|
|
_onDestroy: function() {
|
|
if (this._windowAddedId > 0) {
|
|
this._workspace.disconnect(this._windowAddedId);
|
|
this._windowAddedId = 0;
|
|
}
|
|
if (this._idleToggleCloseId > 0) {
|
|
Mainloop.source_remove(this._idleToggleCloseId);
|
|
this._idleToggleCloseId = 0;
|
|
}
|
|
this._windowClone.metaWindow.disconnect(this._updateCaptionId);
|
|
this.title.destroy();
|
|
this.closeButton.destroy();
|
|
this.border.destroy();
|
|
},
|
|
|
|
_animateVisible: function() {
|
|
this._parentActor.raise_top();
|
|
|
|
this.closeButton.show();
|
|
this.closeButton.opacity = 0;
|
|
Tweener.addTween(this.closeButton,
|
|
{ opacity: 255,
|
|
time: CLOSE_BUTTON_FADE_TIME,
|
|
transition: 'easeOutQuad' });
|
|
|
|
this.border.show();
|
|
this.border.opacity = 0;
|
|
Tweener.addTween(this.border,
|
|
{ opacity: 255,
|
|
time: CLOSE_BUTTON_FADE_TIME,
|
|
transition: 'easeOutQuad' });
|
|
|
|
this.title.add_style_pseudo_class('hover');
|
|
},
|
|
|
|
_animateInvisible: function() {
|
|
this.closeButton.opacity = 255;
|
|
Tweener.addTween(this.closeButton,
|
|
{ opacity: 0,
|
|
time: CLOSE_BUTTON_FADE_TIME,
|
|
transition: 'easeInQuad' });
|
|
|
|
this.border.opacity = 255;
|
|
Tweener.addTween(this.border,
|
|
{ opacity: 0,
|
|
time: CLOSE_BUTTON_FADE_TIME,
|
|
transition: 'easeInQuad' });
|
|
|
|
this.title.remove_style_pseudo_class('hover');
|
|
},
|
|
|
|
_onEnter: function() {
|
|
// We might get enter events on the clone while the overlay is
|
|
// hidden, e.g. during animations, we ignore these events,
|
|
// as the close button will be shown as needed when the overlays
|
|
// are shown again
|
|
if (this._hidden)
|
|
return;
|
|
|
|
this._animateVisible();
|
|
this.emit('show-close-button');
|
|
},
|
|
|
|
_onLeave: function() {
|
|
if (this._idleToggleCloseId == 0)
|
|
this._idleToggleCloseId = Mainloop.timeout_add(750, Lang.bind(this, this._idleToggleCloseButton));
|
|
},
|
|
|
|
_idleToggleCloseButton: function() {
|
|
this._idleToggleCloseId = 0;
|
|
|
|
if (!this._windowClone.actor.has_pointer &&
|
|
!this.closeButton.has_pointer)
|
|
this._animateInvisible();
|
|
|
|
return false;
|
|
},
|
|
|
|
hideCloseButton: function() {
|
|
if (this._idleToggleCloseId > 0) {
|
|
Mainloop.source_remove(this._idleToggleCloseId);
|
|
this._idleToggleCloseId = 0;
|
|
}
|
|
this.closeButton.hide();
|
|
this.border.hide();
|
|
this.title.remove_style_pseudo_class('hover');
|
|
},
|
|
|
|
_onStyleChanged: function() {
|
|
let titleNode = this.title.get_theme_node();
|
|
this.title._spacing = titleNode.get_length('-shell-caption-spacing');
|
|
|
|
let closeNode = this.closeButton.get_theme_node();
|
|
this.closeButton._overlap = closeNode.get_length('-shell-close-overlap');
|
|
|
|
let borderNode = this.border.get_theme_node();
|
|
this.borderSize = borderNode.get_border_width(St.Side.TOP);
|
|
|
|
this._parentActor.queue_relayout();
|
|
}
|
|
});
|
|
Signals.addSignalMethods(WindowOverlay.prototype);
|
|
|
|
const WindowPositionFlags = {
|
|
NONE: 0,
|
|
INITIAL: 1 << 0,
|
|
ANIMATE: 1 << 1
|
|
};
|
|
|
|
// Window Thumbnail Layout Algorithm
|
|
// =================================
|
|
//
|
|
// General overview
|
|
// ----------------
|
|
//
|
|
// The window thumbnail layout algorithm calculates some optimal layout
|
|
// by computing layouts with some number of rows, calculating how good
|
|
// each layout is, and stopping iterating when it finds one that is worse
|
|
// than the previous layout. A layout consists of which windows are in
|
|
// which rows, row sizes and other general state tracking that would make
|
|
// calculating window positions from this information fairly easy.
|
|
//
|
|
// We don't compute some global order of windows right now for optimal
|
|
// travel when animating into the overview; windows are assumed to be
|
|
// in some stable order.
|
|
//
|
|
// After a layout is computed that's considered the best layout, we
|
|
// compute the layout scale to fit it in the area, and then compute
|
|
// slots (sizes and positions) for each thumbnail.
|
|
//
|
|
// Layout generation
|
|
// -----------------
|
|
//
|
|
// Layout generation is naive and simple: we simply add windows to a row
|
|
// until we've added too many windows to a row, and then make a new row,
|
|
// until we have our required N rows. The potential issue with this strategy
|
|
// is that we may have too many windows at the bottom in some pathological
|
|
// cases, which tends to make the thumbnails have the shape of a pile of
|
|
// sand with a peak, with one window at the top.
|
|
//
|
|
// Scaling factors
|
|
// ---------------
|
|
//
|
|
// Thumbnail position is mostly straightforward -- the main issue is
|
|
// computing an optimal scale for each window that fits the constraints,
|
|
// and doesn't make the thumbnail too small to see. There are two factors
|
|
// involved in thumbnail scale to make sure that these two goals are met:
|
|
// the window scale (calculated by _computeWindowScale) and the layout
|
|
// scale (calculated by computeSizeAndScale).
|
|
//
|
|
// The calculation logic becomes slightly more complicated because row
|
|
// and column spacing are not scaled, they're constant, so we can't
|
|
// simply generate a bunch of window positions and then scale it. In
|
|
// practice, it's not too bad -- we can simply try to fit the layout
|
|
// in the input area minus whatever spacing we have, and then add
|
|
// it back afterwards.
|
|
//
|
|
// The window scale is constant for the window's size regardless of the
|
|
// input area or the layout scale or rows or anything else, and right
|
|
// now just enlarges the window if it's too small. The fact that this
|
|
// factor is stable makes it easy to calculate, so there's no sense
|
|
// in not applying it in most calculations.
|
|
//
|
|
// The layout scale depends on the input area, the rows, etc, but is the
|
|
// same for the entire layout, rather than being per-window. After
|
|
// generating the rows of windows, we basically do some basic math to
|
|
// fit the full, unscaled layout to the input area, as described above.
|
|
//
|
|
// With these two factors combined, the final scale of each thumbnail is
|
|
// simply windowScale * layoutScale... almost.
|
|
//
|
|
// There's one additional constraint: the thumbnail scale must never be
|
|
// larger than WINDOW_CLONE_MAXIMUM_SCALE, which means that the inequality:
|
|
//
|
|
// windowScale * layoutScale <= WINDOW_CLONE_MAXIMUM_SCALE
|
|
//
|
|
// must always be true. This is for each individual window -- while we
|
|
// could adjust layoutScale to make the largest thumbnail smaller than
|
|
// WINDOW_CLONE_MAXIMUM_SCALE, it would shrink windows which are already
|
|
// under the inequality. To solve this, we simply cheat: we simply keep
|
|
// each window's "cell" area to be the same, but we shrink the thumbnail
|
|
// and center it horizontally, and align it to the bottom vertically.
|
|
|
|
const LayoutStrategy = new Lang.Class({
|
|
Name: 'LayoutStrategy',
|
|
Abstract: true,
|
|
|
|
_init: function(monitor, rowSpacing, columnSpacing) {
|
|
this._monitor = monitor;
|
|
this._rowSpacing = rowSpacing;
|
|
this._columnSpacing = columnSpacing;
|
|
},
|
|
|
|
_newRow: function() {
|
|
// Row properties:
|
|
//
|
|
// * x, y are the position of row, relative to area
|
|
//
|
|
// * width, height are the scaled versions of fullWidth, fullHeight
|
|
//
|
|
// * width also has the spacing in between windows. It's not in
|
|
// fullWidth, as the spacing is constant, whereas fullWidth is
|
|
// meant to be scaled
|
|
//
|
|
// * neither height/fullHeight have any sort of spacing or padding
|
|
return { x: 0, y: 0,
|
|
width: 0, height: 0,
|
|
fullWidth: 0, fullHeight: 0,
|
|
windows: [] };
|
|
},
|
|
|
|
// Computes and returns an individual scaling factor for @window,
|
|
// to be applied in addition to the overal layout scale.
|
|
_computeWindowScale: function(window) {
|
|
// Since we align windows next to each other, the height of the
|
|
// thumbnails is much more important to preserve than the width of
|
|
// them, so two windows with equal height, but maybe differering
|
|
// widths line up.
|
|
let ratio = window.actor.height / this._monitor.height;
|
|
|
|
// The purpose of this manipulation here is to prevent windows
|
|
// from getting too small. For something like a calculator window,
|
|
// we need to bump up the size just a bit to make sure it looks
|
|
// good. We'll use a multiplier of 1.5 for this.
|
|
|
|
// Map from [0, 1] to [1.5, 1]
|
|
return _interpolate(1.5, 1, ratio);
|
|
},
|
|
|
|
// Compute the size of each row, by assigning to the properties
|
|
// row.width, row.height, row.fullWidth, row.fullHeight, and
|
|
// (optionally) for each row in @layout.rows. This method is
|
|
// intended to be called by subclasses.
|
|
_computeRowSizes: function(layout) {
|
|
throw new Error('_computeRowSizes not implemented');
|
|
},
|
|
|
|
// Compute strategy-specific window slots for each window in
|
|
// @windows, given the @layout. The strategy may also use @layout
|
|
// as strategy-specific storage.
|
|
//
|
|
// This must calculate:
|
|
// * maxColumns - The maximum number of columns used by the layout.
|
|
// * gridWidth - The total width used by the grid, unscaled, unspaced.
|
|
// * gridHeight - The totial height used by the grid, unscaled, unspaced.
|
|
// * rows - A list of rows, which should be instantiated by _newRow.
|
|
computeLayout: function(windows, layout) {
|
|
throw new Error('computeLayout not implemented');
|
|
},
|
|
|
|
// Given @layout, compute the overall scale and space of the layout.
|
|
// The scale is the individual, non-fancy scale of each window, and
|
|
// the space is the percentage of the available area eventually
|
|
// used by the layout.
|
|
|
|
// This method does not return anything, but instead installs
|
|
// the properties "scale" and "space" on @layout directly.
|
|
//
|
|
// Make sure to call this methods before calling computeWindowSlots(),
|
|
// as it depends on the scale property installed in @layout here.
|
|
computeScaleAndSpace: function(layout) {
|
|
let area = layout.area;
|
|
|
|
let hspacing = (layout.maxColumns - 1) * this._columnSpacing;
|
|
let vspacing = (layout.numRows - 1) * this._rowSpacing;
|
|
|
|
let spacedWidth = area.width - hspacing;
|
|
let spacedHeight = area.height - vspacing;
|
|
|
|
let horizontalScale = spacedWidth / layout.gridWidth;
|
|
let verticalScale = spacedHeight / layout.gridHeight;
|
|
|
|
// Thumbnails should be less than 70% of the original size
|
|
let scale = Math.min(horizontalScale, verticalScale, WINDOW_CLONE_MAXIMUM_SCALE);
|
|
|
|
let scaledLayoutWidth = layout.gridWidth * scale + hspacing;
|
|
let scaledLayoutHeight = layout.gridHeight * scale + vspacing;
|
|
let space = (scaledLayoutWidth * scaledLayoutHeight) / (area.width * area.height);
|
|
|
|
layout.scale = scale;
|
|
layout.space = space;
|
|
},
|
|
|
|
_getDistance: function (row, actor) {
|
|
let dist_x = actor.x - row.x;
|
|
let dist_y = actor.y - row.y;
|
|
|
|
return Math.sqrt(Math.pow(dist_x, 2) + Math.pow(dist_y, 2));
|
|
},
|
|
|
|
computeWindowSlots: function(layout, area) {
|
|
this._computeRowSizes(layout);
|
|
|
|
let { rows: rows, scale: scale } = layout;
|
|
|
|
let slots = [];
|
|
|
|
let y = 0;
|
|
for (let i = 0; i < rows.length; i++) {
|
|
let row = rows[i];
|
|
row.x = area.x + (area.width - row.width) / 2;
|
|
row.y = area.y + y;
|
|
y += row.height + this._rowSpacing;
|
|
row.windows.sort(Lang.bind(this, function(a, b) {
|
|
return this._getDistance(row, a.realWindow) - this._getDistance(row, b.realWindow);
|
|
}));
|
|
}
|
|
|
|
let height = y - this._rowSpacing;
|
|
let baseY = (area.height - height) / 2;
|
|
|
|
for (let i = 0; i < rows.length; i++) {
|
|
let row = rows[i];
|
|
row.y += baseY;
|
|
let x = row.x;
|
|
for (let j = 0; j < row.windows.length; j++) {
|
|
let window = row.windows[j];
|
|
|
|
let s = scale * this._computeWindowScale(window);
|
|
let cellWidth = window.actor.width * s;
|
|
let cellHeight = window.actor.height * s;
|
|
|
|
s = Math.min(s, WINDOW_CLONE_MAXIMUM_SCALE);
|
|
let cloneWidth = window.actor.width * s;
|
|
|
|
let cloneX = x + (cellWidth - cloneWidth) / 2;
|
|
let cloneY = row.y + row.height - cellHeight;
|
|
|
|
slots.push([cloneX, cloneY, s, window]);
|
|
x += cellWidth + this._columnSpacing;
|
|
}
|
|
}
|
|
return slots;
|
|
}
|
|
});
|
|
|
|
const UnalignedLayoutStrategy = new Lang.Class({
|
|
Name: 'UnalignedLayoutStrategy',
|
|
Extends: LayoutStrategy,
|
|
|
|
_computeRowSizes: function(layout) {
|
|
let { rows: rows, scale: scale } = layout;
|
|
for (let i = 0; i < rows.length; i++) {
|
|
let row = rows[i];
|
|
row.width = row.fullWidth * scale + (row.windows.length - 1) * this._columnSpacing;
|
|
row.height = row.fullHeight * scale;
|
|
}
|
|
},
|
|
|
|
_keepSameRow: function(row, window, width, idealRowWidth) {
|
|
if (row.fullWidth + width <= idealRowWidth)
|
|
return true;
|
|
|
|
let oldRatio = row.fullWidth / idealRowWidth;
|
|
let newRatio = (row.fullWidth + width) / idealRowWidth;
|
|
|
|
if (Math.abs(1 - newRatio) < Math.abs(1 - oldRatio))
|
|
return true;
|
|
|
|
return false;
|
|
},
|
|
|
|
computeLayout: function(windows, layout) {
|
|
let numRows = layout.numRows;
|
|
|
|
let rows = [];
|
|
let totalWidth = 0;
|
|
for (let i = 0; i < windows.length; i++) {
|
|
let window = windows[i];
|
|
let s = this._computeWindowScale(window);
|
|
totalWidth += window.actor.width * s;
|
|
}
|
|
|
|
let idealRowWidth = totalWidth / numRows;
|
|
let windowIdx = 0;
|
|
for (let i = 0; i < numRows; i++) {
|
|
let col = 0;
|
|
let row = this._newRow();
|
|
rows.push(row);
|
|
|
|
for (; windowIdx < windows.length; windowIdx++) {
|
|
let window = windows[windowIdx];
|
|
let s = this._computeWindowScale(window);
|
|
let width = window.actor.width * s;
|
|
let height = window.actor.height * s;
|
|
row.fullHeight = Math.max(row.fullHeight, height);
|
|
|
|
// either new width is < idealWidth or new width is nearer from idealWidth then oldWidth
|
|
if (this._keepSameRow(row, window, width, idealRowWidth) || (i == numRows - 1)) {
|
|
row.windows.push(window);
|
|
row.fullWidth += width;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
let gridHeight = 0;
|
|
let maxRow;
|
|
for (let i = 0; i < numRows; i++) {
|
|
let row = rows[i];
|
|
if (!maxRow || row.fullWidth > maxRow.fullWidth)
|
|
maxRow = row;
|
|
gridHeight += row.fullHeight;
|
|
}
|
|
|
|
layout.rows = rows;
|
|
layout.maxColumns = maxRow.windows.length;
|
|
layout.gridWidth = maxRow.fullWidth;
|
|
layout.gridHeight = gridHeight;
|
|
}
|
|
});
|
|
|
|
|
|
/**
|
|
* @metaWorkspace: a #Meta.Workspace, or null
|
|
*/
|
|
const Workspace = new Lang.Class({
|
|
Name: 'Workspace',
|
|
|
|
_init : function(metaWorkspace, monitorIndex) {
|
|
// When dragging a window, we use this slot for reserve space.
|
|
this._reservedSlot = null;
|
|
this.metaWorkspace = metaWorkspace;
|
|
this._x = 0;
|
|
this._y = 0;
|
|
this._width = 0;
|
|
this._height = 0;
|
|
|
|
this.monitorIndex = monitorIndex;
|
|
this._monitor = Main.layoutManager.monitors[this.monitorIndex];
|
|
this._windowOverlaysGroup = new Clutter.Actor();
|
|
// Without this the drop area will be overlapped.
|
|
this._windowOverlaysGroup.set_size(0, 0);
|
|
|
|
this.actor = new St.Widget({ style_class: 'window-picker' });
|
|
if (monitorIndex != Main.layoutManager.primaryIndex)
|
|
this.actor.add_style_class_name('external-monitor');
|
|
this.actor.set_size(0, 0);
|
|
|
|
this._dropRect = new Clutter.Rectangle({ opacity: 0 });
|
|
this._dropRect._delegate = this;
|
|
|
|
this.actor.add_actor(this._dropRect);
|
|
this.actor.add_actor(this._windowOverlaysGroup);
|
|
|
|
this.actor.connect('destroy', Lang.bind(this, this._onDestroy));
|
|
|
|
let windows = global.get_window_actors().filter(this._isMyWindow, this);
|
|
|
|
// Create clones for windows that should be
|
|
// visible in the Overview
|
|
this._windows = [];
|
|
this._windowOverlays = [];
|
|
for (let i = 0; i < windows.length; i++) {
|
|
if (this._isOverviewWindow(windows[i])) {
|
|
this._addWindowClone(windows[i], true);
|
|
}
|
|
}
|
|
|
|
// Track window changes
|
|
if (this.metaWorkspace) {
|
|
this._windowAddedId = this.metaWorkspace.connect('window-added',
|
|
Lang.bind(this, this._windowAdded));
|
|
this._windowRemovedId = this.metaWorkspace.connect('window-removed',
|
|
Lang.bind(this, this._windowRemoved));
|
|
}
|
|
this._windowEnteredMonitorId = global.screen.connect('window-entered-monitor',
|
|
Lang.bind(this, this._windowEnteredMonitor));
|
|
this._windowLeftMonitorId = global.screen.connect('window-left-monitor',
|
|
Lang.bind(this, this._windowLeftMonitor));
|
|
this._repositionWindowsId = 0;
|
|
|
|
this.leavingOverview = false;
|
|
|
|
this._positionWindowsFlags = 0;
|
|
this._positionWindowsId = 0;
|
|
|
|
this._currentLayout = null;
|
|
},
|
|
|
|
setGeometry: function(x, y, width, height) {
|
|
this._x = x;
|
|
this._y = y;
|
|
this._width = width;
|
|
this._height = height;
|
|
|
|
Meta.later_add(Meta.LaterType.BEFORE_REDRAW, Lang.bind(this, function() {
|
|
this._dropRect.set_position(x, y);
|
|
this._dropRect.set_size(width, height);
|
|
return false;
|
|
}));
|
|
|
|
this.positionWindows(WindowPositionFlags.NONE);
|
|
},
|
|
|
|
_lookupIndex: function (metaWindow) {
|
|
for (let i = 0; i < this._windows.length; i++) {
|
|
if (this._windows[i].metaWindow == metaWindow) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
},
|
|
|
|
containsMetaWindow: function (metaWindow) {
|
|
return this._lookupIndex(metaWindow) >= 0;
|
|
},
|
|
|
|
isEmpty: function() {
|
|
return this._windows.length == 0;
|
|
},
|
|
|
|
setReservedSlot: function(clone) {
|
|
if (this._reservedSlot == clone)
|
|
return;
|
|
|
|
if (clone && this.containsMetaWindow(clone.metaWindow))
|
|
clone = null;
|
|
|
|
this._reservedSlot = clone;
|
|
this._currentLayout = null;
|
|
this.positionWindows(WindowPositionFlags.ANIMATE);
|
|
},
|
|
|
|
/**
|
|
* positionWindows:
|
|
* @flags:
|
|
* INITIAL - this is the initial positioning of the windows.
|
|
* ANIMATE - Indicates that we need animate changing position.
|
|
*/
|
|
positionWindows: function(flags) {
|
|
this._positionWindowsFlags |= flags;
|
|
|
|
if (this._positionWindowsId > 0)
|
|
return;
|
|
|
|
this._positionWindowsId = Meta.later_add(Meta.LaterType.BEFORE_REDRAW, Lang.bind(this, function() {
|
|
this._realPositionWindows(this._positionWindowsFlags);
|
|
this._positionWindowsFlags = 0;
|
|
this._positionWindowsId = 0;
|
|
return false;
|
|
}));
|
|
},
|
|
|
|
_realPositionWindows : function(flags) {
|
|
if (this._repositionWindowsId > 0) {
|
|
Mainloop.source_remove(this._repositionWindowsId);
|
|
this._repositionWindowsId = 0;
|
|
}
|
|
|
|
let clones = this._windows.slice();
|
|
|
|
clones.sort(function(a, b) {
|
|
return a.metaWindow.get_stable_sequence() - b.metaWindow.get_stable_sequence();
|
|
});
|
|
|
|
if (this._reservedSlot)
|
|
clones.push(this._reservedSlot);
|
|
|
|
let initialPositioning = flags & WindowPositionFlags.INITIAL;
|
|
let animate = flags & WindowPositionFlags.ANIMATE;
|
|
|
|
// Start the animations
|
|
let slots = this._computeAllWindowSlots(clones);
|
|
|
|
let currentWorkspace = global.screen.get_active_workspace();
|
|
let isOnCurrentWorkspace = this.metaWorkspace == null || this.metaWorkspace == currentWorkspace;
|
|
|
|
for (let i = 0; i < slots.length; i++) {
|
|
let slot = slots[i];
|
|
let [x, y, scale, clone] = slot;
|
|
let metaWindow = clone.metaWindow;
|
|
let overlay = clone.overlay;
|
|
clone.slotId = i;
|
|
|
|
// Positioning a window currently being dragged must be avoided;
|
|
// we'll just leave a blank spot in the layout for it.
|
|
if (clone.inDrag)
|
|
continue;
|
|
|
|
let cloneWidth = clone.actor.width * scale;
|
|
let cloneHeight = clone.actor.height * scale;
|
|
clone.slot = [x, y, cloneWidth, cloneHeight];
|
|
|
|
if (overlay && (initialPositioning || !clone.positioned))
|
|
overlay.hide();
|
|
|
|
if (!clone.positioned) {
|
|
// This window appeared after the overview was already up
|
|
// Grow the clone from the center of the slot
|
|
clone.actor.x = x + cloneWidth / 2;
|
|
clone.actor.y = y + cloneHeight / 2;
|
|
clone.actor.scale_x = 0;
|
|
clone.actor.scale_y = 0;
|
|
clone.positioned = true;
|
|
}
|
|
|
|
if (animate && isOnCurrentWorkspace) {
|
|
if (!metaWindow.showing_on_its_workspace()) {
|
|
/* Hidden windows should fade in and grow
|
|
* therefore we need to resize them now so they
|
|
* can be scaled up later */
|
|
if (initialPositioning) {
|
|
clone.actor.opacity = 0;
|
|
clone.actor.scale_x = 0;
|
|
clone.actor.scale_y = 0;
|
|
clone.actor.x = x;
|
|
clone.actor.y = y;
|
|
}
|
|
|
|
Tweener.addTween(clone.actor,
|
|
{ opacity: 255,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: 'easeInQuad'
|
|
});
|
|
}
|
|
|
|
this._animateClone(clone, overlay, x, y, scale, initialPositioning);
|
|
} else {
|
|
// cancel any active tweens (otherwise they might override our changes)
|
|
Tweener.removeTweens(clone.actor);
|
|
clone.actor.set_position(x, y);
|
|
clone.actor.set_scale(scale, scale);
|
|
clone.actor.set_opacity(255);
|
|
clone.overlay.relayout(false);
|
|
this._showWindowOverlay(clone, overlay, isOnCurrentWorkspace);
|
|
}
|
|
}
|
|
},
|
|
|
|
syncStacking: function(stackIndices) {
|
|
let clones = this._windows.slice();
|
|
clones.sort(function (a, b) { return stackIndices[a.metaWindow.get_stable_sequence()] - stackIndices[b.metaWindow.get_stable_sequence()]; });
|
|
|
|
for (let i = 0; i < clones.length; i++) {
|
|
let clone = clones[i];
|
|
let metaWindow = clone.metaWindow;
|
|
if (i == 0) {
|
|
clone.setStackAbove(this._dropRect);
|
|
} else {
|
|
let previousClone = clones[i - 1];
|
|
clone.setStackAbove(previousClone.actor);
|
|
}
|
|
}
|
|
},
|
|
|
|
_animateClone: function(clone, overlay, x, y, scale, initialPositioning) {
|
|
Tweener.addTween(clone.actor,
|
|
{ x: x,
|
|
y: y,
|
|
scale_x: scale,
|
|
scale_y: scale,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: 'easeOutQuad',
|
|
onComplete: Lang.bind(this, function() {
|
|
this._showWindowOverlay(clone, overlay, true);
|
|
})
|
|
});
|
|
|
|
clone.overlay.relayout(true);
|
|
},
|
|
|
|
_showWindowOverlay: function(clone, overlay, fade) {
|
|
if (clone.inDrag)
|
|
return;
|
|
|
|
if (overlay) {
|
|
if (fade)
|
|
overlay.fadeIn();
|
|
else
|
|
overlay.show();
|
|
}
|
|
},
|
|
|
|
_delayedWindowRepositioning: function() {
|
|
let [x, y, mask] = global.get_pointer();
|
|
|
|
let pointerHasMoved = (this._cursorX != x && this._cursorY != y);
|
|
let inWorkspace = (this._x < x && x < this._x + this._width &&
|
|
this._y < y && y < this._y + this._height);
|
|
|
|
if (pointerHasMoved && inWorkspace) {
|
|
// store current cursor position
|
|
this._cursorX = x;
|
|
this._cursorY = y;
|
|
return true;
|
|
}
|
|
|
|
let actorUnderPointer = global.stage.get_actor_at_pos(Clutter.PickMode.REACTIVE, x, y);
|
|
for (let i = 0; i < this._windows.length; i++) {
|
|
if (this._windows[i].actor == actorUnderPointer)
|
|
return true;
|
|
}
|
|
|
|
this.positionWindows(WindowPositionFlags.ANIMATE);
|
|
return false;
|
|
},
|
|
|
|
_doRemoveWindow : function(metaWin) {
|
|
let win = metaWin.get_compositor_private();
|
|
|
|
// find the position of the window in our list
|
|
let index = this._lookupIndex (metaWin);
|
|
|
|
if (index == -1)
|
|
return;
|
|
|
|
// Check if window still should be here
|
|
if (win && this._isMyWindow(win))
|
|
return;
|
|
|
|
let clone = this._windows[index];
|
|
|
|
this._windows.splice(index, 1);
|
|
this._windowOverlays.splice(index, 1);
|
|
|
|
// If metaWin.get_compositor_private() returned non-NULL, that
|
|
// means the window still exists (and is just being moved to
|
|
// another workspace or something), so set its overviewHint
|
|
// accordingly. (If it returned NULL, then the window is being
|
|
// destroyed; we'd like to animate this, but it's too late at
|
|
// this point.)
|
|
if (win) {
|
|
let [stageX, stageY] = clone.actor.get_transformed_position();
|
|
let [stageWidth, stageHeight] = clone.actor.get_transformed_size();
|
|
win._overviewHint = {
|
|
x: stageX,
|
|
y: stageY,
|
|
scale: stageWidth / clone.actor.width
|
|
};
|
|
}
|
|
clone.destroy();
|
|
|
|
|
|
// We need to reposition the windows; to avoid shuffling windows
|
|
// around while the user is interacting with the workspace, we delay
|
|
// the positioning until the pointer remains still for at least 750 ms
|
|
// or is moved outside the workspace
|
|
|
|
// remove old handler
|
|
if (this._repositionWindowsId > 0) {
|
|
Mainloop.source_remove(this._repositionWindowsId);
|
|
this._repositionWindowsId = 0;
|
|
}
|
|
|
|
// setup new handler
|
|
let [x, y, mask] = global.get_pointer();
|
|
this._cursorX = x;
|
|
this._cursorY = y;
|
|
|
|
this._currentLayout = null;
|
|
this._repositionWindowsId = Mainloop.timeout_add(750,
|
|
Lang.bind(this, this._delayedWindowRepositioning));
|
|
},
|
|
|
|
_doAddWindow : function(metaWin) {
|
|
if (this.leavingOverview)
|
|
return;
|
|
|
|
let win = metaWin.get_compositor_private();
|
|
|
|
if (!win) {
|
|
// Newly-created windows are added to a workspace before
|
|
// the compositor finds out about them...
|
|
Mainloop.idle_add(Lang.bind(this,
|
|
function () {
|
|
if (this.actor &&
|
|
metaWin.get_compositor_private() &&
|
|
metaWin.get_workspace() == this.metaWorkspace)
|
|
this._doAddWindow(metaWin);
|
|
return false;
|
|
}));
|
|
return;
|
|
}
|
|
|
|
// We might have the window in our list already if it was on all workspaces and
|
|
// now was moved to this workspace
|
|
if (this._lookupIndex (metaWin) != -1)
|
|
return;
|
|
|
|
if (!this._isMyWindow(win) || !this._isOverviewWindow(win))
|
|
return;
|
|
|
|
let [clone, overlay] = this._addWindowClone(win, false);
|
|
|
|
if (win._overviewHint) {
|
|
let x = win._overviewHint.x - this.actor.x;
|
|
let y = win._overviewHint.y - this.actor.y;
|
|
let scale = win._overviewHint.scale;
|
|
delete win._overviewHint;
|
|
|
|
clone.slot = [x, y, clone.actor.width * scale, clone.actor.height * scale];
|
|
clone.positioned = true;
|
|
clone.actor.set_position (x, y);
|
|
clone.actor.set_scale (scale, scale);
|
|
clone.overlay.relayout(false);
|
|
}
|
|
|
|
this._currentLayout = null;
|
|
this.positionWindows(WindowPositionFlags.ANIMATE);
|
|
},
|
|
|
|
_windowAdded : function(metaWorkspace, metaWin) {
|
|
this._doAddWindow(metaWin);
|
|
},
|
|
|
|
_windowRemoved : function(metaWorkspace, metaWin) {
|
|
this._doRemoveWindow(metaWin);
|
|
},
|
|
|
|
_windowEnteredMonitor : function(metaScreen, monitorIndex, metaWin) {
|
|
if (monitorIndex == this.monitorIndex) {
|
|
this._doAddWindow(metaWin);
|
|
}
|
|
},
|
|
|
|
_windowLeftMonitor : function(metaScreen, monitorIndex, metaWin) {
|
|
if (monitorIndex == this.monitorIndex) {
|
|
this._doRemoveWindow(metaWin);
|
|
}
|
|
},
|
|
|
|
// check for maximized windows on the workspace
|
|
hasMaximizedWindows: function() {
|
|
for (let i = 0; i < this._windows.length; i++) {
|
|
let metaWindow = this._windows[i].metaWindow;
|
|
if (metaWindow.showing_on_its_workspace() &&
|
|
metaWindow.maximized_horizontally &&
|
|
metaWindow.maximized_vertically)
|
|
return true;
|
|
}
|
|
return false;
|
|
},
|
|
|
|
// Animate the full-screen to Overview transition.
|
|
zoomToOverview : function() {
|
|
this._currentLayout = null;
|
|
|
|
// Position and scale the windows.
|
|
if (Main.overview.animationInProgress)
|
|
this.positionWindows(WindowPositionFlags.ANIMATE | WindowPositionFlags.INITIAL);
|
|
else
|
|
this.positionWindows(WindowPositionFlags.INITIAL);
|
|
},
|
|
|
|
// Animates the return from Overview mode
|
|
zoomFromOverview : function() {
|
|
let currentWorkspace = global.screen.get_active_workspace();
|
|
|
|
this.leavingOverview = true;
|
|
|
|
for (let i = 0; i < this._windows.length; i++) {
|
|
let clone = this._windows[i];
|
|
Tweener.removeTweens(clone.actor);
|
|
}
|
|
|
|
if (this._repositionWindowsId > 0) {
|
|
Mainloop.source_remove(this._repositionWindowsId);
|
|
this._repositionWindowsId = 0;
|
|
}
|
|
this._overviewHiddenId = Main.overview.connect('hidden', Lang.bind(this,
|
|
this._doneLeavingOverview));
|
|
|
|
if (this.metaWorkspace != null && this.metaWorkspace != currentWorkspace)
|
|
return;
|
|
|
|
// Position and scale the windows.
|
|
for (let i = 0; i < this._windows.length; i++) {
|
|
let clone = this._windows[i];
|
|
let overlay = this._windowOverlays[i];
|
|
|
|
if (overlay)
|
|
overlay.hide();
|
|
|
|
if (clone.metaWindow.showing_on_its_workspace()) {
|
|
Tweener.addTween(clone.actor,
|
|
{ x: clone.origX,
|
|
y: clone.origY,
|
|
scale_x: 1.0,
|
|
scale_y: 1.0,
|
|
time: Overview.ANIMATION_TIME,
|
|
opacity: 255,
|
|
transition: 'easeOutQuad'
|
|
});
|
|
} else {
|
|
// The window is hidden, make it shrink and fade it out
|
|
Tweener.addTween(clone.actor,
|
|
{ scale_x: 0,
|
|
scale_y: 0,
|
|
opacity: 0,
|
|
time: Overview.ANIMATION_TIME,
|
|
transition: 'easeOutQuad'
|
|
});
|
|
}
|
|
}
|
|
},
|
|
|
|
destroy : function() {
|
|
this.actor.destroy();
|
|
},
|
|
|
|
_onDestroy: function(actor) {
|
|
if (this._overviewHiddenId) {
|
|
Main.overview.disconnect(this._overviewHiddenId);
|
|
this._overviewHiddenId = 0;
|
|
}
|
|
Tweener.removeTweens(actor);
|
|
|
|
if (this.metaWorkspace) {
|
|
this.metaWorkspace.disconnect(this._windowAddedId);
|
|
this.metaWorkspace.disconnect(this._windowRemovedId);
|
|
}
|
|
global.screen.disconnect(this._windowEnteredMonitorId);
|
|
global.screen.disconnect(this._windowLeftMonitorId);
|
|
|
|
if (this._repositionWindowsId > 0)
|
|
Mainloop.source_remove(this._repositionWindowsId);
|
|
|
|
if (this._positionWindowsId > 0)
|
|
Meta.later_remove(this._positionWindowsId);
|
|
this._windows = [];
|
|
},
|
|
|
|
// Sets this.leavingOverview flag to false.
|
|
_doneLeavingOverview : function() {
|
|
this.leavingOverview = false;
|
|
},
|
|
|
|
// Tests if @actor belongs to this workspaces and monitor
|
|
_isMyWindow : function (actor) {
|
|
let win = actor.meta_window;
|
|
return (this.metaWorkspace == null || win.located_on_workspace(this.metaWorkspace)) &&
|
|
(win.get_monitor() == this.monitorIndex);
|
|
},
|
|
|
|
// Tests if @win should be shown in the Overview
|
|
_isOverviewWindow : function (win) {
|
|
let tracker = Shell.WindowTracker.get_default();
|
|
return tracker.is_window_interesting(win.get_meta_window());
|
|
},
|
|
|
|
// Create a clone of a (non-desktop) window and add it to the window list
|
|
_addWindowClone : function(win, positioned) {
|
|
let clone = new WindowClone(win, this);
|
|
let overlay = new WindowOverlay(clone, this._windowOverlaysGroup);
|
|
clone.overlay = overlay;
|
|
clone.positioned = positioned;
|
|
|
|
clone.connect('selected',
|
|
Lang.bind(this, this._onCloneSelected));
|
|
clone.connect('drag-begin',
|
|
Lang.bind(this, function(clone) {
|
|
Main.overview.beginWindowDrag();
|
|
overlay.hide();
|
|
}));
|
|
clone.connect('drag-cancelled',
|
|
Lang.bind(this, function(clone) {
|
|
Main.overview.cancelledWindowDrag();
|
|
}));
|
|
clone.connect('drag-end',
|
|
Lang.bind(this, function(clone) {
|
|
Main.overview.endWindowDrag();
|
|
overlay.show();
|
|
}));
|
|
clone.connect('size-changed',
|
|
Lang.bind(this, function() {
|
|
this.positionWindows(0);
|
|
}));
|
|
|
|
this.actor.add_actor(clone.actor);
|
|
|
|
overlay.connect('show-close-button', Lang.bind(this, this._onShowOverlayClose));
|
|
|
|
if (this._windows.length == 0)
|
|
clone.setStackAbove(null);
|
|
else
|
|
clone.setStackAbove(this._windows[this._windows.length - 1].actor);
|
|
|
|
this._windows.push(clone);
|
|
this._windowOverlays.push(overlay);
|
|
|
|
return [clone, overlay];
|
|
},
|
|
|
|
_onShowOverlayClose: function (windowOverlay) {
|
|
for (let i = 0; i < this._windowOverlays.length; i++) {
|
|
let overlay = this._windowOverlays[i];
|
|
if (overlay == windowOverlay)
|
|
continue;
|
|
overlay.hideCloseButton();
|
|
}
|
|
},
|
|
|
|
_isBetterLayout: function(oldLayout, newLayout) {
|
|
if (oldLayout.scale === undefined)
|
|
return true;
|
|
|
|
let spacePower = (newLayout.space - oldLayout.space) * LAYOUT_SPACE_WEIGHT;
|
|
let scalePower = (newLayout.scale - oldLayout.scale) * LAYOUT_SCALE_WEIGHT;
|
|
|
|
if (newLayout.scale > oldLayout.scale && newLayout.space > oldLayout.space) {
|
|
// Win win -- better scale and better space
|
|
return true;
|
|
} else if (newLayout.scale > oldLayout.scale && newLayout.space <= oldLayout.space) {
|
|
// Keep new layout only if scale gain outweights aspect space loss
|
|
return scalePower > spacePower;
|
|
} else if (newLayout.scale <= oldLayout.scale && newLayout.space > oldLayout.space) {
|
|
// Keep new layout only if aspect space gain outweights scale loss
|
|
return spacePower > scalePower;
|
|
} else {
|
|
// Lose -- worse scale and space
|
|
return false;
|
|
}
|
|
},
|
|
|
|
_computeLayout: function(windows, area, rowSpacing, columnSpacing) {
|
|
// We look for the largest scale that allows us to fit the
|
|
// largest row/tallest column on the workspace.
|
|
|
|
let lastLayout = {};
|
|
|
|
for (let numRows = 1; ; numRows++) {
|
|
let numColumns = Math.ceil(windows.length / numRows);
|
|
|
|
// If adding a new row does not change column count just stop
|
|
// (for instance: 9 windows, with 3 rows -> 3 columns, 4 rows ->
|
|
// 3 columns as well => just use 3 rows then)
|
|
if (numColumns == lastLayout.numColumns)
|
|
break;
|
|
|
|
let strategy = new UnalignedLayoutStrategy(this._monitor, rowSpacing, columnSpacing);
|
|
|
|
let layout = { area: area, strategy: strategy, numRows: numRows, numColumns: numColumns };
|
|
strategy.computeLayout(windows, layout);
|
|
strategy.computeScaleAndSpace(layout);
|
|
|
|
if (!this._isBetterLayout(lastLayout, layout))
|
|
break;
|
|
|
|
lastLayout = layout;
|
|
}
|
|
|
|
return lastLayout;
|
|
},
|
|
|
|
_rectEqual: function(one, two) {
|
|
if (one == two)
|
|
return true;
|
|
|
|
return (one.x == two.x &&
|
|
one.y == two.y &&
|
|
one.width == two.width &&
|
|
one.height == two.height);
|
|
},
|
|
|
|
_computeAllWindowSlots: function(windows) {
|
|
let totalWindows = windows.length;
|
|
let node = this.actor.get_theme_node();
|
|
|
|
// Window grid spacing
|
|
let columnSpacing = node.get_length('-horizontal-spacing');
|
|
let rowSpacing = node.get_length('-vertical-spacing');
|
|
let padding = {
|
|
left: node.get_padding(St.Side.LEFT),
|
|
top: node.get_padding(St.Side.TOP),
|
|
bottom: node.get_padding(St.Side.BOTTOM),
|
|
right: node.get_padding(St.Side.RIGHT),
|
|
};
|
|
|
|
if (!totalWindows)
|
|
return [];
|
|
|
|
let closeButtonHeight, captionHeight;
|
|
let leftBorder, rightBorder;
|
|
if (this._windowOverlays.length) {
|
|
// All of the overlays have the same chrome sizes,
|
|
// so just pick the first one.
|
|
let overlay = this._windowOverlays[0];
|
|
[closeButtonHeight, captionHeight] = overlay.chromeHeights();
|
|
[leftBorder, rightBorder] = overlay.chromeWidths();
|
|
} else {
|
|
[closeButtonHeight, captionHeight] = [0, 0];
|
|
[leftBorder, rightBorder] = [0, 0];
|
|
}
|
|
|
|
rowSpacing += captionHeight;
|
|
columnSpacing += (rightBorder + leftBorder) / 2;
|
|
padding.top += closeButtonHeight;
|
|
padding.bottom += captionHeight;
|
|
padding.left += leftBorder;
|
|
padding.right += rightBorder;
|
|
|
|
let area = {
|
|
x: this._x + padding.left,
|
|
y: this._y + padding.top,
|
|
width: this._width - padding.left - padding.right,
|
|
height: this._height - padding.top - padding.bottom,
|
|
};
|
|
|
|
if (!this._currentLayout)
|
|
this._currentLayout = this._computeLayout(windows, area, rowSpacing, columnSpacing);
|
|
|
|
let layout = this._currentLayout;
|
|
let strategy = layout.strategy;
|
|
|
|
if (!this._rectEqual(area, layout.area)) {
|
|
layout.area = area;
|
|
strategy.computeScaleAndSpace(layout);
|
|
}
|
|
|
|
return strategy.computeWindowSlots(layout, area);
|
|
},
|
|
|
|
_onCloneSelected : function (clone, time) {
|
|
let wsIndex = undefined;
|
|
if (this.metaWorkspace)
|
|
wsIndex = this.metaWorkspace.index();
|
|
Main.activateWindow(clone.metaWindow, time, wsIndex);
|
|
},
|
|
|
|
// Draggable target interface
|
|
handleDragOver : function(source, actor, x, y, time) {
|
|
if (source.realWindow && !this._isMyWindow(source.realWindow))
|
|
return DND.DragMotionResult.MOVE_DROP;
|
|
if (source.shellWorkspaceLaunch)
|
|
return DND.DragMotionResult.COPY_DROP;
|
|
|
|
return DND.DragMotionResult.CONTINUE;
|
|
},
|
|
|
|
acceptDrop : function(source, actor, x, y, time) {
|
|
if (source.realWindow) {
|
|
let win = source.realWindow;
|
|
if (this._isMyWindow(win))
|
|
return false;
|
|
|
|
// Set a hint on the Mutter.Window so its initial position
|
|
// in the new workspace will be correct
|
|
win._overviewHint = {
|
|
x: actor.x,
|
|
y: actor.y,
|
|
scale: actor.scale_x
|
|
};
|
|
|
|
let metaWindow = win.get_meta_window();
|
|
|
|
// We need to move the window before changing the workspace, because
|
|
// the move itself could cause a workspace change if the window enters
|
|
// the primary monitor
|
|
if (metaWindow.get_monitor() != this.monitorIndex)
|
|
metaWindow.move_to_monitor(this.monitorIndex);
|
|
|
|
let index = this.metaWorkspace ? this.metaWorkspace.index() : global.screen.get_active_workspace_index();
|
|
metaWindow.change_workspace_by_index(index,
|
|
false, // don't create workspace
|
|
time);
|
|
return true;
|
|
} else if (source.shellWorkspaceLaunch) {
|
|
source.shellWorkspaceLaunch({ workspace: this.metaWorkspace ? this.metaWorkspace.index() : -1,
|
|
timestamp: time });
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
});
|
|
|
|
Signals.addSignalMethods(Workspace.prototype);
|