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 GLib = imports.gi.GLib;
const Gio = imports.gi.Gio;
const Lang = imports.lang;
const Meta = imports.gi.Meta;
const St = imports.gi.St;
const AltTab = imports.ui.altTab;
const WorkspaceSwitcherPopup = imports.ui.workspaceSwitcherPopup;
const Main = imports.ui.main;
const Tweener = imports.ui.tweener;
const WINDOW_ANIMATION_TIME = 0.25;
const DIM_TIME = 0.500;
const UNDIM_TIME = 0.250;
var dimShader = undefined;
function getDimShader() {
if (dimShader === null)
return null;
if (!dimShader) {
let [success, source, length] = GLib.file_get_contents(global.datadir +
'/shaders/dim-window.glsl');
try {
let shader = new Clutter.Shader();
shader.set_fragment_source(source, -1);
shader.compile();
dimShader = shader;
} catch (e) {
log(e.message);
dimShader = null;
}
}
return dimShader;
}
function WindowDimmer(actor) {
this._init(actor);
}
WindowDimmer.prototype = {
_init: function(actor) {
this.actor = actor;
},
set dimFraction(fraction) {
this._dimFraction = fraction;
let shader = getDimShader();
if (!Meta.prefs_get_attach_modal_dialogs() || !shader) {
this.actor.set_shader(null);
return;
}
if (fraction > 0.01) {
this.actor.set_shader(shader);
this.actor.set_shader_param_float('height', this.actor.get_height());
this.actor.set_shader_param_float('fraction', fraction);
} else
this.actor.set_shader(null);
},
get dimFraction() {
return this._dimFraction;
},
_dimFraction: 0.0
};
function getWindowDimmer(texture) {
if (!texture._windowDimmer)
texture._windowDimmer = new WindowDimmer(texture);
return texture._windowDimmer;
}
function WindowManager() {
this._init();
}
WindowManager.prototype = {
_init : function() {
this._shellwm = global.window_manager;
this._keyBindingHandlers = [];
this._minimizing = [];
this._maximizing = [];
this._unmaximizing = [];
this._mapping = [];
this._destroying = [];
this._dimmedWindows = [];
this._switchData = null;
this._shellwm.connect('kill-switch-workspace', Lang.bind(this, this._switchWorkspaceDone));
this._shellwm.connect('kill-window-effects', Lang.bind(this, function (shellwm, actor) {
this._minimizeWindowDone(shellwm, actor);
this._maximizeWindowDone(shellwm, actor);
this._unmaximizeWindowDone(shellwm, actor);
this._mapWindowDone(shellwm, actor);
this._destroyWindowDone(shellwm, actor);
}));
this._shellwm.connect('switch-workspace', Lang.bind(this, this._switchWorkspace));
this._shellwm.connect('minimize', Lang.bind(this, this._minimizeWindow));
this._shellwm.connect('maximize', Lang.bind(this, this._maximizeWindow));
this._shellwm.connect('unmaximize', Lang.bind(this, this._unmaximizeWindow));
this._shellwm.connect('map', Lang.bind(this, this._mapWindow));
this._shellwm.connect('destroy', Lang.bind(this, this._destroyWindow));
this._workspaceSwitcherPopup = null;
this.setKeybindingHandler('switch_to_workspace_left', Lang.bind(this, this._showWorkspaceSwitcher));
this.setKeybindingHandler('switch_to_workspace_right', Lang.bind(this, this._showWorkspaceSwitcher));
this.setKeybindingHandler('switch_to_workspace_up', Lang.bind(this, this._showWorkspaceSwitcher));
this.setKeybindingHandler('switch_to_workspace_down', Lang.bind(this, this._showWorkspaceSwitcher));
this.setKeybindingHandler('switch_windows', Lang.bind(this, this._startAppSwitcher));
this.setKeybindingHandler('switch_group', Lang.bind(this, this._startAppSwitcher));
this.setKeybindingHandler('switch_panels', Lang.bind(this, this._startA11ySwitcher));
Main.overview.connect('showing', Lang.bind(this, function() {
for (let i = 0; i < this._dimmedWindows.length; i++)
this._undimParentWindow(this._dimmedWindows[i], true);
}));
Main.overview.connect('hiding', Lang.bind(this, function() {
for (let i = 0; i < this._dimmedWindows.length; i++)
this._dimParentWindow(this._dimmedWindows[i], true);
}));
},
setKeybindingHandler: function(keybinding, handler){
if (this._keyBindingHandlers[keybinding])
this._shellwm.disconnect(this._keyBindingHandlers[keybinding]);
else
this._shellwm.takeover_keybinding(keybinding);
this._keyBindingHandlers[keybinding] =
this._shellwm.connect('keybinding::' + keybinding, handler);
},
_shouldAnimate : function(actor) {
if (Main.overview.visible)
return false;
if (actor && (actor.meta_window.get_window_type() != Meta.WindowType.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(shellwm, actor) {
if (!this._shouldAnimate(actor)) {
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);
let primary = global.get_primary_monitor();
let xDest = primary.x;
if (St.Widget.get_default_direction() == St.TextDirection.RTL)
xDest += primary.width;
Tweener.addTween(actor,
{ scale_x: 0.0,
scale_y: 0.0,
x: xDest,
y: 0,
time: WINDOW_ANIMATION_TIME,
transition: 'easeOutQuad',
onComplete: this._minimizeWindowDone,
onCompleteScope: this,
onCompleteParams: [shellwm, actor],
onOverwrite: this._minimizeWindowOverwritten,
onOverwriteScope: this,
onOverwriteParams: [shellwm, actor]
});
},
_minimizeWindowDone : function(shellwm, 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);
shellwm.completed_minimize(actor);
}
},
_minimizeWindowOverwritten : function(shellwm, actor) {
if (this._removeEffect(this._minimizing, actor)) {
shellwm.completed_minimize(actor);
}
},
_maximizeWindow : function(shellwm, actor, targetX, targetY, targetWidth, targetHeight) {
shellwm.completed_maximize(actor);
},
_maximizeWindowDone : function(shellwm, actor) {
},
_maximizeWindowOverwrite : function(shellwm, actor) {
},
_unmaximizeWindow : function(shellwm, actor, targetX, targetY, targetWidth, targetHeight) {
shellwm.completed_unmaximize(actor);
},
_unmaximizeWindowDone : function(shellwm, actor) {
},
_parentHasOtherAttachedDialog: function(parent, self) {
var count = 0;
parent.foreach_transient(function(win) {
if (win.get_window_type() == Meta.WindowType.MODAL_DIALOG && win != self)
count++;
return false;
});
return count != 0;
},
_markParentWindowAsDimmable: function(actor, animate) {
if (Meta.prefs_get_attach_modal_dialogs()) {
this._dimmedWindows.push(actor);
if (this._shouldAnimate())
this._dimParentWindow(actor, animate);
}
},
_unmarkParentWindowAsDimmable: function(actor, animate) {
if (!Main.overview.visible)
this._undimParentWindow(actor, true);
this._dimmedWindows = this._dimmedWindows.filter(function(win) {
return win != actor;
});
},
_dimParentWindow: function(actor, animate) {
let meta = actor.get_meta_window();
let parent = meta.get_transient_for();
if (!parent)
return;
let parentActor = parent.get_compositor_private();
if (!parentActor || this._parentHasOtherAttachedDialog(parent, meta))
return;
let texture = parentActor.get_texture();
if (animate)
Tweener.addTween(getWindowDimmer(texture),
{ dimFraction: 1.0,
time: DIM_TIME,
transition: 'linear'
});
else
getWindowDimmer(texture).dimFraction = 1.0;
},
_undimParentWindow: function(actor, animate) {
let meta = actor.get_meta_window();
let parent = meta.get_transient_for();
if (!parent)
return;
let parentActor = parent.get_compositor_private();
if (!parentActor || this._parentHasOtherAttachedDialog(parent, meta))
return;
let texture = parentActor.get_texture();
if (animate)
Tweener.addTween(getWindowDimmer(texture),
{ dimFraction: 0.0,
time: UNDIM_TIME,
transition: 'linear'
});
else
getWindowDimmer(texture).dimFraction = 0.0;
},
_mapWindow : function(shellwm, actor) {
actor._windowType = actor.meta_window.get_window_type();
actor._notifyWindowTypeSignalId = actor.meta_window.connect('notify::window-type', Lang.bind(this, function () {
let type = actor.meta_window.get_window_type();
if (type == actor._windowType)
return;
if (type == Meta.WindowType.MODAL_DIALOG)
this._markParentWindowAsDimmable(actor, true);
else if (actor._windowType == Meta.WindowType.MODAL_DIALOG)
this._unmarkParentWindowAsDimmable(actor, true);
actor._windowType = type;
}));
if (actor.meta_window.get_window_type() == Meta.WindowType.MODAL_DIALOG
&& Meta.prefs_get_attach_modal_dialogs()
&& actor.get_meta_window().get_transient_for()) {
this._markParentWindowAsDimmable(actor, true);
if (this._shouldAnimate()) {
actor.set_scale(1.0, 0.0);
actor.show();
this._mapping.push(actor);
Tweener.addTween(actor,
{ scale_y: 1,
time: WINDOW_ANIMATION_TIME,
transition: "easeOutQuad",
onComplete: this._mapWindowDone,
onCompleteScope: this,
onCompleteParams: [shellwm, actor],
onOverwrite: this._mapWindowOverwrite,
onOverwriteScope: this,
onOverwriteParams: [shellwm, actor]
});
return;
}
shellwm.completed_map(actor);
return;
}
if (!this._shouldAnimate(actor)) {
shellwm.completed_map(actor);
return;
}
actor.opacity = 0;
actor.show();
/* Fade window in */
this._mapping.push(actor);
Tweener.addTween(actor,
{ opacity: 255,
time: WINDOW_ANIMATION_TIME,
transition: 'easeOutQuad',
onComplete: this._mapWindowDone,
onCompleteScope: this,
onCompleteParams: [shellwm, actor],
onOverwrite: this._mapWindowOverwrite,
onOverwriteScope: this,
onOverwriteParams: [shellwm, actor]
});
},
_mapWindowDone : function(shellwm, actor) {
if (this._removeEffect(this._mapping, actor)) {
Tweener.removeTweens(actor);
actor.opacity = 255;
shellwm.completed_map(actor);
}
},
_mapWindowOverwrite : function(shellwm, actor) {
if (this._removeEffect(this._mapping, actor)) {
shellwm.completed_map(actor);
}
},
_destroyWindow : function(shellwm, actor) {
let parent = actor.meta_window.get_transient_for();
if (actor._notifyWindowTypeSignalId) {
actor.meta_window.disconnect(actor._notifyWindowTypeSignalId);
actor._notifyWindowTypeSignalId = 0;
}
while (actor.meta_window.get_window_type() == Meta.WindowType.MODAL_DIALOG
&& parent) {
this._unmarkParentWindowAsDimmable(actor, true);
if (!Meta.prefs_get_attach_modal_dialogs()
|| !this._shouldAnimate())
break;
actor.set_scale(1.0, 1.0);
actor.show();
this._destroying.push(actor);
actor._parentDestroyId = parent.connect('unmanaged', Lang.bind(this, function () {
Tweener.removeTweens(actor);
this._destroyWindowDone(shellwm, actor);
}));
Tweener.addTween(actor,
{ scale_y: 0,
time: WINDOW_ANIMATION_TIME,
transition: "easeOutQuad",
onComplete: this._destroyWindowDone,
onCompleteScope: this,
onCompleteParams: [shellwm, actor],
onOverwrite: this._destroyWindowDone,
onOverwriteScope: this,
onOverwriteParams: [shellwm, actor]
});
return;
}
shellwm.completed_destroy(actor);
},
_destroyWindowDone : function(shellwm, actor) {
if (this._removeEffect(this._destroying, actor)) {
let parent = actor.get_meta_window().get_transient_for();
if (parent && actor._parentDestroyId) {
parent.disconnect(actor._parentDestroyId);
actor._parentDestroyId = 0;
}
shellwm.completed_destroy(actor);
}
},
_switchWorkspace : function(shellwm, from, to, direction) {
if (!this._shouldAnimate()) {
shellwm.completed_switch_workspace();
return;
}
let windows = global.get_window_actors();
/* @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)
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yDest = global.screen_height;
else if (direction == Meta.MotionDirection.DOWN ||
direction == Meta.MotionDirection.DOWN_LEFT ||
direction == Meta.MotionDirection.DOWN_RIGHT)
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yDest = -global.screen_height;
if (direction == Meta.MotionDirection.LEFT ||
direction == Meta.MotionDirection.UP_LEFT ||
direction == Meta.MotionDirection.DOWN_LEFT)
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xDest = global.screen_width;
else if (direction == Meta.MotionDirection.RIGHT ||
direction == Meta.MotionDirection.UP_RIGHT ||
direction == Meta.MotionDirection.DOWN_RIGHT)
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xDest = -global.screen_width;
let switchData = {};
this._switchData = switchData;
switchData.inGroup = new Clutter.Group();
switchData.outGroup = new Clutter.Group();
switchData.windows = [];
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let wgroup = 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,
onCompleteParams: [shellwm]
});
Tweener.addTween(switchData.inGroup,
{ x: 0,
y: 0,
time: WINDOW_ANIMATION_TIME,
transition: 'easeOutQuad'
});
},
_switchWorkspaceDone : function(shellwm) {
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.is_destroyed()) // Window gone
continue;
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();
shellwm.completed_switch_workspace();
},
_startAppSwitcher : function(shellwm, binding, window, backwards) {
/* prevent a corner case where both popups show up at once */
if (this._workspaceSwitcherPopup != null)
this._workspaceSwitcherPopup.actor.hide();
let tabPopup = new AltTab.AltTabPopup();
if (!tabPopup.show(backwards, binding == 'switch_group'))
tabPopup.destroy();
},
_startA11ySwitcher : function(shellwm, binding, window, backwards) {
Main.ctrlAltTabManager.popup(backwards);
},
_showWorkspaceSwitcher : function(shellwm, binding, window, backwards) {
if (global.screen.n_workspaces == 1)
return;
if (this._workspaceSwitcherPopup == null)
this._workspaceSwitcherPopup = new WorkspaceSwitcherPopup.WorkspaceSwitcherPopup();
if (binding == 'switch_to_workspace_up')
this.actionMoveWorkspaceUp();
else if (binding == 'switch_to_workspace_down')
this.actionMoveWorkspaceDown();
// left/right would effectively act as synonyms for up/down if we enabled them;
// but that could be considered confusing.
// else if (binding == 'switch_to_workspace_left')
// this.actionMoveWorkspaceLeft();
// else if (binding == 'switch_to_workspace_right')
// this.actionMoveWorkspaceRight();
},
actionMoveWorkspaceLeft: function() {
let rtl = (St.Widget.get_default_direction() == St.TextDirection.RTL);
let activeWorkspaceIndex = global.screen.get_active_workspace_index();
let indexToActivate = activeWorkspaceIndex;
if (rtl && activeWorkspaceIndex < global.screen.n_workspaces - 1)
indexToActivate++;
else if (!rtl && activeWorkspaceIndex > 0)
indexToActivate--;
if (indexToActivate != activeWorkspaceIndex)
global.screen.get_workspace_by_index(indexToActivate).activate(global.get_current_time());
if (!Main.overview.visible)
this._workspaceSwitcherPopup.display(WorkspaceSwitcherPopup.UP, indexToActivate);
},
actionMoveWorkspaceRight: function() {
let rtl = (St.Widget.get_default_direction() == St.TextDirection.RTL);
let activeWorkspaceIndex = global.screen.get_active_workspace_index();
let indexToActivate = activeWorkspaceIndex;
if (rtl && activeWorkspaceIndex > 0)
indexToActivate--;
else if (!rtl && activeWorkspaceIndex < global.screen.n_workspaces - 1)
indexToActivate++;
if (indexToActivate != activeWorkspaceIndex)
global.screen.get_workspace_by_index(indexToActivate).activate(global.get_current_time());
if (!Main.overview.visible)
this._workspaceSwitcherPopup.display(WorkspaceSwitcherPopup.DOWN, indexToActivate);
},
actionMoveWorkspaceUp: function() {
let activeWorkspaceIndex = global.screen.get_active_workspace_index();
let indexToActivate = activeWorkspaceIndex;
if (activeWorkspaceIndex > 0)
indexToActivate--;
if (indexToActivate != activeWorkspaceIndex)
global.screen.get_workspace_by_index(indexToActivate).activate(global.get_current_time());
if (!Main.overview.visible)
this._workspaceSwitcherPopup.display(WorkspaceSwitcherPopup.UP, indexToActivate);
},
actionMoveWorkspaceDown: function() {
let activeWorkspaceIndex = global.screen.get_active_workspace_index();
let indexToActivate = activeWorkspaceIndex;
if (activeWorkspaceIndex < global.screen.n_workspaces - 1)
indexToActivate++;
if (indexToActivate != activeWorkspaceIndex)
global.screen.get_workspace_by_index(indexToActivate).activate(global.get_current_time());
if (!Main.overview.visible)
this._workspaceSwitcherPopup.display(WorkspaceSwitcherPopup.DOWN, indexToActivate);
}
};