gnome-shell/js/ui/windowManager.js
Jasper St. Pierre 82eccb566c windowManager: Use an off-screen buffer for window dimming
The way the window dimmer shader is applied will cause rendering errors with
the rounded corners, invisible borders or shaped textures since it doesn't deal
well with the multitexturing used by the MetaShapedTexture. Use an off-screen
buffer to flatten the texture before being applied.

https://bugzilla.gnome.org/show_bug.cgi?id=659302
2011-09-19 12:39:41 -04:00

617 lines
23 KiB
JavaScript

/* -*- 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 Shell = imports.gi.Shell;
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 getDimShaderSource() {
if (!dimShader)
dimShader = Shell.get_file_contents_utf8_sync(global.datadir + '/shaders/dim-window.glsl');
return dimShader;
}
function WindowDimmer(actor) {
this._init(actor);
}
WindowDimmer.prototype = {
_init: function(actor) {
this.effect = new Clutter.ShaderEffect({ shader_type: Clutter.ShaderType.FRAGMENT_SHADER });
this.effect.set_shader_source(getDimShaderSource());
this.actor = actor;
},
set dimFraction(fraction) {
this._dimFraction = fraction;
if (!Meta.prefs_get_attach_modal_dialogs()) {
this.effect.enabled = false;
return;
}
if (fraction > 0.01) {
Shell.shader_effect_set_double_uniform(this.effect, 'height', this.actor.get_height());
Shell.shader_effect_set_double_uniform(this.effect, 'fraction', fraction);
if (!this.effect.actor)
this.actor.add_effect(this.effect);
} else {
if (this.effect.actor)
this.actor.remove_effect(this.effect);
}
},
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._animationBlockCount = 0;
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_windows_backward', Lang.bind(this, this._startAppSwitcher));
this.setKeybindingHandler('switch_group_backward', 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._undimWindow(this._dimmedWindows[i], true);
}));
Main.overview.connect('hiding', Lang.bind(this, function() {
for (let i = 0; i < this._dimmedWindows.length; i++)
this._dimWindow(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);
},
blockAnimations: function() {
this._animationBlockCount++;
},
unblockAnimations: function() {
this._animationBlockCount = Math.max(0, this._animationBlockCount - 1);
},
_shouldAnimate : function(actor) {
if (Main.overview.visible || this._animationsBlocked > 0)
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 = Main.layoutManager.primaryMonitor;
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) {
},
_hasAttachedDialogs: function(window, ignoreWindow) {
var count = 0;
window.foreach_transient(function(win) {
if (win != ignoreWindow && win.is_attached_dialog())
count++;
return false;
});
return count != 0;
},
_checkDimming: function(window, ignoreWindow) {
let shouldDim = this._hasAttachedDialogs(window, ignoreWindow);
if (shouldDim && !window._dimmed) {
window._dimmed = true;
this._dimmedWindows.push(window);
if (!Main.overview.visible)
this._dimWindow(window, true);
} else if (!shouldDim && window._dimmed) {
window._dimmed = false;
this._dimmedWindows = this._dimmedWindows.filter(function(win) {
return win != window;
});
if (!Main.overview.visible)
this._undimWindow(window, true);
}
},
_dimWindow: function(window, animate) {
let actor = window.get_compositor_private();
if (!actor)
return;
let texture = actor.get_texture();
if (animate)
Tweener.addTween(getWindowDimmer(texture),
{ dimFraction: 1.0,
time: DIM_TIME,
transition: 'linear'
});
else
getWindowDimmer(texture).dimFraction = 1.0;
},
_undimWindow: function(window, animate) {
let actor = window.get_compositor_private();
if (!actor)
return;
let texture = actor.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 ||
actor._windowType == Meta.WindowType.MODAL_DIALOG) {
let parent = actor.get_meta_window().get_transient_for();
if (parent)
this._checkDimming(parent);
}
actor._windowType = type;
}));
if (actor.meta_window.is_attached_dialog()) {
this._checkDimming(actor.get_meta_window().get_transient_for());
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 window = actor.meta_window;
if (actor._notifyWindowTypeSignalId) {
window.disconnect(actor._notifyWindowTypeSignalId);
actor._notifyWindowTypeSignalId = 0;
}
if (window._dimmed) {
this._dimmedWindows = this._dimmedWindows.filter(function(win) {
return win != window;
});
}
if (window.is_attached_dialog()) {
let parent = window.get_transient_for();
this._checkDimming(parent, window);
if (!this._shouldAnimate()) {
shellwm.completed_destroy(actor);
return;
}
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)
yDest = global.screen_height;
else if (direction == Meta.MotionDirection.DOWN ||
direction == Meta.MotionDirection.DOWN_LEFT ||
direction == Meta.MotionDirection.DOWN_RIGHT)
yDest = -global.screen_height;
if (direction == Meta.MotionDirection.LEFT ||
direction == Meta.MotionDirection.UP_LEFT ||
direction == Meta.MotionDirection.DOWN_LEFT)
xDest = global.screen_width;
else if (direction == Meta.MotionDirection.RIGHT ||
direction == Meta.MotionDirection.UP_RIGHT ||
direction == Meta.MotionDirection.DOWN_RIGHT)
xDest = -global.screen_width;
let switchData = {};
this._switchData = switchData;
switchData.inGroup = new Clutter.Group();
switchData.outGroup = new Clutter.Group();
switchData.windows = [];
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))
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);
}
};