gnome-shell/js/ui/windowManager.js

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/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
const Clutter = imports.gi.Clutter;
const Mainloop = imports.mainloop;
const Meta = imports.gi.Meta;
const Shell = imports.gi.Shell;
const AltTab = imports.ui.altTab;
const Main = imports.ui.main;
const Tweener = imports.ui.tweener;
const WINDOW_ANIMATION_TIME = 0.25;
function WindowManager() {
this._init();
}
WindowManager.prototype = {
_init : function() {
let me = this;
this._global = Shell.Global.get();
this._shellwm = this._global.window_manager;
this._minimizing = [];
this._maximizing = [];
this._unmaximizing = [];
this._mapping = [];
this._destroying = [];
this._switchData = null;
this._shellwm.connect('switch-workspace',
function(o, from, to, direction) {
let actors = me._shellwm.get_switch_workspace_actors();
me._switchWorkspace(actors, from, to, direction);
});
this._shellwm.connect('kill-switch-workspace',
function(o) {
me._switchWorkspaceDone();
});
this._shellwm.connect('minimize',
function(o, actor) {
me._minimizeWindow(actor);
});
this._shellwm.connect('kill-minimize',
function(o, actor) {
me._minimizeWindowDone(actor);
});
this._shellwm.connect('maximize',
function(o, actor, tx, ty, tw, th) {
me._maximizeWindow(actor, tx, ty, tw, th);
});
this._shellwm.connect('kill-maximize',
function(o, actor) {
me._maximizeWindowDone(actor);
});
this._shellwm.connect('unmaximize',
function(o, actor, tx, ty, tw, th) {
me._unmaximizeWindow(actor, tx, ty, tw, th);
});
this._shellwm.connect('kill-unmaximize',
function(o, actor) {
me._unmaximizeWindowDone(actor);
});
this._shellwm.connect('map',
function(o, actor) {
me._mapWindow(actor);
});
this._shellwm.connect('kill-map',
function(o, actor) {
me._mapWindowDone(actor);
});
this._shellwm.connect('destroy',
function(o, actor) {
me._destroyWindow(actor);
});
this._shellwm.connect('kill-destroy',
function(o, actor) {
me._destroyWindowDone(actor);
});
this._shellwm.connect('begin-alt-tab',
function(o, handler) {
me._beginAltTab(handler);
});
},
_shouldAnimate : function(actor) {
if (Main.overlay.visible)
return false;
if (actor && (actor.get_window_type() != Meta.CompWindowType.NORMAL))
return false;
return true;
},
_removeEffect : function(list, actor) {
let idx = list.indexOf(actor);
if (idx != -1) {
list.splice(idx, 1);
return true;
}
return false;
},
_minimizeWindow : function(actor) {
if (!this._shouldAnimate(actor)) {
this._shellwm.completed_minimize(actor);
return;
}
actor.set_scale(1.0, 1.0);
actor.move_anchor_point_from_gravity(Clutter.Gravity.CENTER);
/* scale window down to 0x0.
* maybe TODO: get icon geometry passed through and move the window towards it?
*/
this._minimizing.push(actor);
Tweener.addTween(actor,
{ scale_x: 0.0,
scale_y: 0.0,
time: WINDOW_ANIMATION_TIME,
transition: "easeOutQuad",
onComplete: this._minimizeWindowDone,
onCompleteScope: this,
onCompleteParams: [actor],
onOverwrite: this._minimizeWindowOverwritten,
onOverwriteScope: this,
onOverwriteParams: [actor]
});
},
_minimizeWindowDone : function(actor) {
if (this._removeEffect(this._minimizing, actor)) {
Tweener.removeTweens(actor);
actor.set_scale(1.0, 1.0);
actor.move_anchor_point_from_gravity(Clutter.Gravity.NORTH_WEST);
this._shellwm.completed_minimize(actor);
}
},
_minimizeWindowOverwritten : function(actor) {
if (this._removeEffect(this._minimizing, actor)) {
this._shellwm.completed_minimize(actor);
}
},
_maximizeWindow : function(actor, targetX, targetY, targetWidth, targetHeight) {
if (!this._shouldAnimate(actor)) {
this._shellwm.completed_maximize(actor);
return;
}
/* this doesn't work very well, as simply scaling up the existing
* window contents doesn't produce anything like the same results as
* actually maximizing the window.
*/
let scaleX = targetWidth / actor.width;
let scaleY = targetHeight / actor.height;
let anchorX = (actor.x - targetX) * actor.width/(targetWidth - actor.width);
let anchorY = (actor.y - targetY) * actor.height/(targetHeight - actor.height);
actor.move_anchor_point(anchorX, anchorY);
this._maximizing.push(actor);
Tweener.addTween(actor,
{ scale_x: scaleX,
scale_y: scaleY,
time: WINDOW_ANIMATION_TIME,
transition: "easeOutQuad",
onComplete: this._maximizeWindowDone,
onCompleteScope: this,
onCompleteParams: [actor],
onOverwrite: this._maximizeWindowOverwrite,
onOverwriteScope: this,
onOverwriteParams: [actor]
});
},
_maximizeWindowDone : function(actor) {
if (this._removeEffect(this._maximizing, actor)) {
Tweener.removeTweens(actor);
actor.set_scale(1.0, 1.0);
actor.move_anchor_point_from_gravity(Clutter.Gravity.NORTH_WEST);
this._shellwm.completed_maximize(actor);
}
},
_maximizeWindowOverwrite : function(actor) {
if (this._removeEffect(this._maximizing, actor)) {
this._shellwm.completed_maximize(actor);
}
},
_unmaximizeWindow : function(actor, targetX, targetY, targetWidth, targetHeight) {
this._shellwm.completed_unmaximize(actor);
},
_unmaximizeWindowDone : function(actor) {
},
_mapWindow : function(actor) {
if (!this._shouldAnimate(actor)) {
this._shellwm.completed_map(actor);
return;
}
actor.move_anchor_point_from_gravity(Clutter.Gravity.CENTER);
actor.set_scale(0.0, 0.0);
actor.show();
/* scale window up from 0x0 to normal size */
this._mapping.push(actor);
Tweener.addTween(actor,
{ scale_x: 1.0,
scale_y: 1.0,
time: WINDOW_ANIMATION_TIME,
transition: "easeOutQuad",
onComplete: this._mapWindowDone,
onCompleteScope: this,
onCompleteParams: [actor],
onOverwrite: this._mapWindowOverwrite,
onOverwriteScope: this,
onOverwriteParams: [actor]
});
},
_mapWindowDone : function(actor) {
if (this._removeEffect(this._mapping, actor)) {
Tweener.removeTweens(actor);
actor.set_scale(1.0, 1.0);
actor.move_anchor_point_from_gravity(Clutter.Gravity.NORTH_WEST);
this._shellwm.completed_map(actor);
}
},
_mapWindowOverwrite : function(actor) {
if (this._removeEffect(this._mapping, actor)) {
this._shellwm.completed_map(actor);
}
},
_destroyWindow : function(actor) {
if (!this._shouldAnimate(actor)) {
this._shellwm.completed_destroy(actor);
return;
}
actor.move_anchor_point_from_gravity(Clutter.Gravity.CENTER);
/* anachronistic 'tv-like' effect - squash on y axis, leave x alone */
this._destroying.push(actor);
Tweener.addTween(actor,
{ scale_x: 1.0,
scale_y: 0.0,
time: WINDOW_ANIMATION_TIME,
transition: "easeOutQuad",
onComplete: this._destroyWindowDone,
onCompleteScope: this,
onCompleteParams: [actor],
onOverwrite: this._destroyWindowOverwrite,
onOverwriteScope: this,
onOverwriteParams: [actor]
});
},
_destroyWindowDone : function(actor) {
if (this._removeEffect(this._destroying, actor)) {
this._shellwm.completed_destroy(actor);
Tweener.removeTweens(actor);
actor.set_scale(1.0, 1.0);
}
},
_destroyWindowOverwrite : function(actor) {
if (this._removeEffect(this._destroying, actor)) {
this._shellwm.completed_destroy(actor);
}
},
_switchWorkspace : function(windows, from, to, direction) {
if (!this._shouldAnimate()) {
this._shellwm.completed_switch_workspace();
return;
}
/* @direction is the direction that the "camera" moves, so the
* screen contents have to move one screen's worth in the
* opposite direction.
*/
let xDest = 0, yDest = 0;
if (direction == Meta.MotionDirection.UP ||
direction == Meta.MotionDirection.UP_LEFT ||
direction == Meta.MotionDirection.UP_RIGHT)
yDest = this._global.screen_height;
else if (direction == Meta.MotionDirection.DOWN ||
direction == Meta.MotionDirection.DOWN_LEFT ||
direction == Meta.MotionDirection.DOWN_RIGHT)
yDest = -this._global.screen_height;
if (direction == Meta.MotionDirection.LEFT ||
direction == Meta.MotionDirection.UP_LEFT ||
direction == Meta.MotionDirection.DOWN_LEFT)
xDest = this._global.screen_width;
else if (direction == Meta.MotionDirection.RIGHT ||
direction == Meta.MotionDirection.UP_RIGHT ||
direction == Meta.MotionDirection.DOWN_RIGHT)
xDest = -this._global.screen_width;
let switchData = {};
this._switchData = switchData;
switchData.inGroup = new Clutter.Group();
switchData.outGroup = new Clutter.Group();
switchData.windows = [];
let wgroup = this._global.window_group;
wgroup.add_actor(switchData.inGroup);
wgroup.add_actor(switchData.outGroup);
for (let i = 0; i < windows.length; i++) {
let window = windows[i];
if (!window.meta_window.showing_on_its_workspace())
continue;
if (window.get_workspace() == from) {
switchData.windows.push({ window: window,
parent: window.get_parent() });
window.reparent(switchData.outGroup);
} else if (window.get_workspace() == to) {
switchData.windows.push({ window: window,
parent: window.get_parent() });
window.reparent(switchData.inGroup);
window.show_all();
}
}
switchData.inGroup.set_position(-xDest, -yDest);
switchData.inGroup.raise_top();
Tweener.addTween(switchData.outGroup,
{ x: xDest,
y: yDest,
time: WINDOW_ANIMATION_TIME,
transition: "easeOutQuad",
onComplete: this._switchWorkspaceDone,
onCompleteScope: this
});
Tweener.addTween(switchData.inGroup,
{ x: 0,
y: 0,
time: WINDOW_ANIMATION_TIME,
transition: "easeOutQuad"
});
},
_switchWorkspaceDone : function() {
let switchData = this._switchData;
if (!switchData)
return;
this._switchData = null;
for (let i = 0; i < switchData.windows.length; i++) {
let w = switchData.windows[i];
if (w.window.get_parent() == switchData.outGroup) {
w.window.reparent(w.parent);
w.window.hide();
} else
w.window.reparent(w.parent);
}
Tweener.removeTweens(switchData.inGroup);
Tweener.removeTweens(switchData.outGroup);
switchData.inGroup.destroy();
switchData.outGroup.destroy();
this._shellwm.completed_switch_workspace();
},
_beginAltTab : function(handler) {
let popup = new AltTab.AltTabPopup();
handler.connect('window-added', function(handler, window) { popup.addWindow(window); });
handler.connect('show', function(handler, initialSelection) { popup.show(initialSelection); });
handler.connect('destroy', function() { popup.destroy(); });
handler.connect('notify::selected', function() { popup.select(handler.selected); });
}
};