gnome-shell/js/ui/popupMenu.js
Adel Gadllah 3dbee0b833 PopupSliderMenuItem: Implement mousewheel support
Allow changing the slider's value using the mousewheel.

https://bugzilla.gnome.org/show_bug.cgi?id=632743
2010-10-21 22:48:39 +02:00

955 lines
31 KiB
JavaScript

/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
const Cairo = imports.cairo;
const Clutter = imports.gi.Clutter;
const Gtk = imports.gi.Gtk;
const Lang = imports.lang;
const Shell = imports.gi.Shell;
const Signals = imports.signals;
const St = imports.gi.St;
const BoxPointer = imports.ui.boxpointer;
const Main = imports.ui.main;
const Params = imports.misc.params;
const Tweener = imports.ui.tweener;
const Gettext = imports.gettext.domain('gnome-shell');
const _ = Gettext.gettext;
const SLIDER_SCROLL_STEP = 0.05; /* Slider scrolling step in % */
function Switch() {
this._init.apply(this, arguments);
}
Switch.prototype = {
_init: function(state) {
this.actor = new St.Bin({ style_class: 'toggle-switch' });
// Translators: this MUST be either "toggle-switch-us"
// (for toggle switches containing the English words
// "ON" and "OFF") or "toggle-switch-intl" (for toggle
// switches containing "◯" and "|"). Other values will
// simply result in invisible toggle switches.
this.actor.add_style_class_name(_("toggle-switch-us"));
this.setToggleState(state);
},
setToggleState: function(state) {
if (state)
this.actor.add_style_pseudo_class('checked');
else
this.actor.remove_style_pseudo_class('checked');
this.state = state;
},
toggle: function() {
this.setToggleState(!this.state);
}
};
function PopupBaseMenuItem(params) {
this._init(params);
}
PopupBaseMenuItem.prototype = {
_init: function (params) {
params = Params.parse (params, { reactive: true,
activate: true,
hover: true });
this.actor = new St.Bin({ style_class: 'popup-menu-item',
reactive: params.reactive,
track_hover: params.reactive,
x_fill: true,
y_fill: true,
x_align: St.Align.START });
this.actor._delegate = this;
this.active = false;
if (params.reactive && params.activate) {
this.actor.connect('button-release-event', Lang.bind(this, function (actor, event) {
this.emit('activate', event);
}));
}
if (params.reactive && params.hover)
this.actor.connect('notify::hover', Lang.bind(this, this._hoverChanged));
},
_hoverChanged: function (actor) {
this.setActive(actor.hover);
},
activate: function (event) {
this.emit('activate', event);
},
setActive: function (active) {
let activeChanged = active != this.active;
if (activeChanged) {
this.active = active;
if (active)
this.actor.add_style_pseudo_class('active');
else
this.actor.remove_style_pseudo_class('active');
this.emit('active-changed', active);
}
},
destroy: function() {
this.actor.destroy();
this.emit('destroy');
},
handleKeyPress: function(event) {
return false;
},
// true if non descendant content includes @actor
contains: function(actor) {
return false;
}
};
Signals.addSignalMethods(PopupBaseMenuItem.prototype);
function PopupMenuItem(text) {
this._init(text);
}
PopupMenuItem.prototype = {
__proto__: PopupBaseMenuItem.prototype,
_init: function (text) {
PopupBaseMenuItem.prototype._init.call(this);
this.label = new St.Label({ text: text });
this.actor.set_child(this.label);
}
};
function PopupSeparatorMenuItem() {
this._init();
}
PopupSeparatorMenuItem.prototype = {
__proto__: PopupBaseMenuItem.prototype,
_init: function () {
PopupBaseMenuItem.prototype._init.call(this, { reactive: false });
this._drawingArea = new St.DrawingArea({ style_class: 'popup-separator-menu-item' });
this.actor.set_child(this._drawingArea);
this._drawingArea.connect('repaint', Lang.bind(this, this._onRepaint));
},
_onRepaint: function(area) {
let cr = area.get_context();
let themeNode = area.get_theme_node();
let [width, height] = area.get_surface_size();
let margin = themeNode.get_length('-margin-horizontal');
let gradientHeight = themeNode.get_length('-gradient-height');
let startColor = new Clutter.Color();
themeNode.get_color('-gradient-start', startColor);
let endColor = new Clutter.Color();
themeNode.get_color('-gradient-end', endColor);
let gradientWidth = (width - margin * 2);
let gradientOffset = (height - gradientHeight) / 2;
let pattern = new Cairo.LinearGradient(margin, gradientOffset, width - margin, gradientOffset + gradientHeight);
pattern.addColorStopRGBA(0, startColor.red / 255, startColor.green / 255, startColor.blue / 255, startColor.alpha / 255);
pattern.addColorStopRGBA(0.5, endColor.red / 255, endColor.green / 255, endColor.blue / 255, endColor.alpha / 255);
pattern.addColorStopRGBA(1, startColor.red / 255, startColor.green / 255, startColor.blue / 255, startColor.alpha / 255);
cr.setSource(pattern);
cr.rectangle(margin, gradientOffset, gradientWidth, gradientHeight);
cr.fill();
}
};
function PopupSliderMenuItem() {
this._init.apply(this, arguments);
}
PopupSliderMenuItem.prototype = {
__proto__: PopupBaseMenuItem.prototype,
_init: function(value) {
PopupBaseMenuItem.prototype._init.call(this, { activate: false });
if (isNaN(value))
// Avoid spreading NaNs around
throw TypeError('The slider value must be a number');
this._value = Math.max(Math.min(value, 1), 0);
this._slider = new St.DrawingArea({ style_class: 'popup-slider-menu-item', reactive: true });
this.actor.set_child(this._slider);
this._slider.connect('repaint', Lang.bind(this, this._sliderRepaint));
this._slider.connect('button-press-event', Lang.bind(this, this._startDragging));
this._slider.connect('scroll-event', Lang.bind(this, this._onScrollEvent));
this._releaseId = this._motionId = 0;
this._dragging = false;
},
setValue: function(value) {
if (isNaN(value))
throw TypeError('The slider value must be a number');
this._value = Math.max(Math.min(value, 1), 0);
this._slider.queue_repaint();
},
_sliderRepaint: function(area) {
let cr = area.get_context();
let themeNode = area.get_theme_node();
let [width, height] = area.get_surface_size();
let handleRadius = themeNode.get_length('-slider-handle-radius');
let sliderWidth = width - 2 * handleRadius;
let sliderHeight = themeNode.get_length('-slider-height');
let sliderBorderWidth = themeNode.get_length('-slider-border-width');
let sliderBorderColor = new Clutter.Color();
themeNode.get_color('-slider-border-color', sliderBorderColor);
let sliderColor = new Clutter.Color();
themeNode.get_color('-slider-background-color', sliderColor);
cr.setSourceRGBA (
sliderColor.red / 255,
sliderColor.green / 255,
sliderColor.blue / 255,
sliderColor.alpha / 255);
cr.rectangle(handleRadius, (height - sliderHeight) / 2, sliderWidth, sliderHeight);
cr.fillPreserve();
cr.setSourceRGBA (
sliderBorderColor.red / 255,
sliderBorderColor.green / 255,
sliderBorderColor.blue / 255,
sliderBorderColor.alpha / 255);
cr.setLineWidth(sliderBorderWidth);
cr.stroke();
let handleY = height / 2;
let handleX = handleRadius + (width - 2 * handleRadius) * this._value;
let color = new Clutter.Color();
themeNode.get_foreground_color(color);
cr.setSourceRGBA (
color.red / 255,
color.green / 255,
color.blue / 255,
color.alpha / 255);
cr.arc(handleX, handleY, handleRadius, 0, 2 * Math.PI);
cr.fill();
},
_startDragging: function(actor, event) {
if (this._dragging) // don't allow two drags at the same time
return;
this._dragging = true;
// FIXME: we should only grab the specific device that originated
// the event, but for some weird reason events are still delivered
// outside the slider if using clutter_grab_pointer_for_device
Clutter.grab_pointer(this._slider);
this._releaseId = this._slider.connect('button-release-event', Lang.bind(this, this._endDragging));
this._motionId = this._slider.connect('motion-event', Lang.bind(this, this._motionEvent));
let absX, absY;
[absX, absY] = event.get_coords();
this._moveHandle(absX, absY);
},
_endDragging: function() {
if (this._dragging) {
this._slider.disconnect(this._releaseId);
this._slider.disconnect(this._motionId);
Clutter.ungrab_pointer();
this._dragging = false;
this.emit('drag-end');
}
return true;
},
_onScrollEvent: function (actor, event) {
let direction = event.get_scroll_direction();
if (direction == Clutter.ScrollDirection.DOWN) {
this._value = Math.max(0, this._value - SLIDER_SCROLL_STEP);
}
else if (direction == Clutter.ScrollDirection.UP) {
this._value = Math.min(1, this._value + SLIDER_SCROLL_STEP);
}
this._slider.queue_repaint();
this.emit('value-changed', this._value);
},
_motionEvent: function(actor, event) {
let absX, absY;
[absX, absY] = event.get_coords();
this._moveHandle(absX, absY)
return true;
},
_moveHandle: function(absX, absY) {
let relX, relY, sliderX, sliderY;
[sliderX, sliderY] = this._slider.get_transformed_position();
relX = absX - sliderX;
relY = absY - sliderY;
let width = this._slider.width;
let handleRadius = this._slider.get_theme_node().get_length('-slider-handle-radius');
let newvalue;
if (relX < handleRadius)
newvalue = 0;
else if (relX > width - handleRadius)
newvalue = 1;
else
newvalue = (relX - handleRadius) / (width - 2 * handleRadius);
this._value = newvalue;
this._slider.queue_repaint();
this.emit('value-changed', this._value);
},
get value() {
return this._value;
},
handleKeyPress: function(event) {
let key = event.get_key_symbol();
if (key == Clutter.Right || key == Clutter.Left) {
let delta = key == Clutter.Right ? 0.1 : -0.1;
this._value = Math.max(0, Math.min(this._value + delta, 1));
this._slider.queue_repaint();
this.emit('value-changed', this._value);
this.emit('drag-end');
return true;
}
return false;
}
}
function PopupSwitchMenuItem() {
this._init.apply(this, arguments);
}
PopupSwitchMenuItem.prototype = {
__proto__: PopupBaseMenuItem.prototype,
_init: function(text, active) {
PopupBaseMenuItem.prototype._init.call(this);
this.active = !!active;
this.label = new St.Label({ text: text });
this._switch = new Switch(this.active);
this._box = new St.BoxLayout({ style_class: 'popup-switch-menu-item' });
this._box.add(this.label, { expand: true, y_fill: false });
this._box.add(this._switch.actor, { y_fill: false });
this.actor.set_child(this._box);
this.connect('activate', Lang.bind(this,function(from) {
this.toggle();
}));
},
toggle: function() {
this._switch.toggle();
this.emit('toggled', this._switch.state);
},
get state() {
return this._switch.state;
},
setToggleState: function(state) {
this._switch.setToggleState(state);
}
}
function PopupImageMenuItem(text, iconName, alwaysShowImage) {
this._init(text, iconName, alwaysShowImage);
}
// We need to instantiate a GtkImageMenuItem so it
// hooks up its properties on the GtkSettings
var _gtkImageMenuItemCreated = false;
PopupImageMenuItem.prototype = {
__proto__: PopupBaseMenuItem.prototype,
_init: function (text, iconName, alwaysShowImage) {
PopupBaseMenuItem.prototype._init.call(this);
if (!_gtkImageMenuItemCreated) {
let menuItem = new Gtk.ImageMenuItem();
menuItem.destroy();
_gtkImageMenuItemCreated = true;
}
this._alwaysShowImage = alwaysShowImage;
this._iconName = iconName;
this._size = 16;
let box = new St.BoxLayout({ style_class: 'popup-image-menu-item' });
this.actor.set_child(box);
this._imageBin = new St.Bin({ width: this._size, height: this._size });
box.add(this._imageBin, { y_fill: false });
this.label = new St.Label({ text: text });
box.add(this.label, { expand: true });
if (!alwaysShowImage) {
let settings = Gtk.Settings.get_default();
settings.connect('notify::gtk-menu-images', Lang.bind(this, this._onMenuImagesChanged));
}
this._onMenuImagesChanged();
},
_onMenuImagesChanged: function() {
let show;
if (this._alwaysShowImage) {
show = true;
} else {
let settings = Gtk.Settings.get_default();
show = settings.gtk_menu_images;
}
if (!show) {
this._imageBin.hide();
} else {
let img = St.TextureCache.get_default().load_icon_name(this._iconName, St.IconType.SYMBOLIC, this._size);
this._imageBin.set_child(img);
this._imageBin.show();
}
},
setIcon: function(name) {
this._iconName = name;
this._onMenuImagesChanged();
}
};
function mod(a, b) {
return (a + b) % b;
}
function findNextInCycle(items, current, direction) {
let cur;
if (items.length == 0)
return current;
else if (items.length == 1)
return items[0];
if (current)
cur = items.indexOf(current);
else if (direction == 1)
cur = items.length - 1;
else
cur = 0;
return items[mod(cur + direction, items.length)];
}
function PopupMenu() {
this._init.apply(this, arguments);
}
PopupMenu.prototype = {
_init: function(sourceActor, alignment, arrowSide, gap) {
this.sourceActor = sourceActor;
this._alignment = alignment;
this._arrowSide = arrowSide;
this._gap = gap;
this._boxPointer = new BoxPointer.BoxPointer(arrowSide,
{ x_fill: true,
y_fill: true,
x_align: St.Align.START });
this.actor = this._boxPointer.actor;
this.actor.style_class = 'popup-menu-boxpointer';
this._box = new St.BoxLayout({ style_class: 'popup-menu-content',
vertical: true });
this._boxPointer.bin.set_child(this._box);
this.actor.add_style_class_name('popup-menu');
this.isOpen = false;
this._activeMenuItem = null;
},
addAction: function(title, callback) {
var menuItem = new PopupMenuItem(title);
this.addMenuItem(menuItem);
menuItem.connect('activate', Lang.bind(this, function (menuItem, event) {
callback(event);
}));
},
addMenuItem: function(menuItem) {
this._box.add(menuItem.actor);
menuItem._activeChangeId = menuItem.connect('active-changed', Lang.bind(this, function (menuItem, active) {
if (active && this._activeMenuItem != menuItem) {
if (this._activeMenuItem)
this._activeMenuItem.setActive(false);
this._activeMenuItem = menuItem;
this.emit('active-changed', menuItem);
} else if (!active && this._activeMenuItem == menuItem) {
this._activeMenuItem = null;
this.emit('active-changed', null);
}
}));
menuItem._activateId = menuItem.connect('activate', Lang.bind(this, function (menuItem, event) {
this.emit('activate', menuItem);
this.close();
}));
menuItem.connect('destroy', Lang.bind(this, function(emitter) {
menuItem.disconnect(menuItem._activateId);
menuItem.disconnect(menuItem._activeChangeId);
if (menuItem == this._activeMenuItem)
this._activeMenuItem = null;
}));
},
addActor: function(actor) {
this._box.add(actor);
},
getMenuItems: function() {
return this._box.get_children().map(function (actor) { return actor._delegate; });
},
removeAll: function() {
let children = this.getMenuItems();
for (let i = 0; i < children.length; i++) {
let item = children[i];
item.destroy();
}
},
setArrowOrigin: function(origin) {
this._boxPointer.setArrowOrigin(origin);
},
activateFirst: function() {
let children = this._box.get_children();
for (let i = 0; i < children.length; i++) {
let actor = children[i];
if (actor._delegate && actor.visible && actor.reactive) {
actor._delegate.setActive(true);
break;
}
}
},
open: function(submenu) {
if (this.isOpen)
return;
this.emit('opening');
let primary = global.get_primary_monitor();
// We need to show it now to force an allocation,
// so that we can query the correct size.
this.actor.show();
// Position correctly relative to the sourceActor
let [sourceX, sourceY] = this.sourceActor.get_transformed_position();
let [sourceWidth, sourceHeight] = this.sourceActor.get_transformed_size();
let [minWidth, minHeight, natWidth, natHeight] = this.actor.get_preferred_size();
let menuWidth = natWidth, menuHeight = natHeight;
// Position the non-pointing axis
if (submenu) {
if (this._arrowSide == St.Side.TOP || this._arrowSide == St.Side.BOTTOM) {
// vertical submenu
if (sourceY + sourceHeigth + menuHeight + this._gap < primary.y + primary.height)
this._boxPointer._arrowSide = this._arrowSide = St.Side.TOP;
else if (primary.y + menuHeight + this._gap < sourceY)
this._boxPointer._arrowSide = this._arrowSide = St.Side.BOTTOM;
else
this._boxPointer._arrowSide = this._arrowSide = St.Side.TOP;
} else {
// horizontal submenu
if (sourceX + sourceWidth + menuWidth + this._gap < primary.x + primary.width)
this._boxPointer._arrowSide = this._arrowSide = St.Side.LEFT;
else if (primary.x + menuWidth + this._gap < sourceX)
this._boxPointer._arrowSide = this._arrowSide = St.Side.RIGHT;
else
this._boxPointer._arrowSide = this._arrowSide = St.Side.LEFT;
}
}
this._boxPointer.setPosition(this.sourceActor, this._gap, this._alignment);
// Now show it
this.actor.reactive = true;
this._boxPointer.animateAppear();
this.isOpen = true;
this.emit('open-state-changed', true);
},
close: function() {
if (!this.isOpen)
return;
this.emit('closing');
if (this._activeMenuItem)
this._activeMenuItem.setActive(false);
this.actor.reactive = false;
this._boxPointer.animateDisappear();
this.isOpen = false;
this.emit('open-state-changed', false);
},
toggle: function() {
if (this.isOpen)
this.close();
else
this.open();
},
handleKeyPress: function(event, submenu) {
if (!this.isOpen || (submenu && !this._activeMenuItem))
return false;
if (this._activeMenuItem && this._activeMenuItem.handleKeyPress(event))
return true;
switch (event.get_key_symbol()) {
case Clutter.space:
case Clutter.Return:
if (this._activeMenuItem)
this._activeMenuItem.activate(event);
return true;
case Clutter.Down:
case Clutter.Up:
let items = this._box.get_children().filter(function (child) { return child.visible && child.reactive; });
let current = this._activeMenuItem ? this._activeMenuItem.actor : null;
let direction = event.get_key_symbol() == Clutter.Down ? 1 : -1;
let next = findNextInCycle(items, current, direction);
if (next) {
next._delegate.setActive(true);
return true;
}
break;
case Clutter.Left:
if (submenu) {
this._activeMenuItem.setActive(false);
return true;
}
break;
}
return false;
},
// return true if the actor is inside the menu or
// any actor related to the active submenu
contains: function(actor) {
if (this.actor.contains(actor))
return true;
if (this._activeMenuItem)
return this._activeMenuItem.contains(actor);
return false;
},
destroy: function() {
this.removeAll();
this.actor.destroy();
this.emit('destroy');
}
};
Signals.addSignalMethods(PopupMenu.prototype);
function PopupSubMenuMenuItem() {
this._init.apply(this, arguments);
}
PopupSubMenuMenuItem.prototype = {
__proto__: PopupBaseMenuItem.prototype,
_init: function(text) {
PopupBaseMenuItem.prototype._init.call(this, { activate: false, hover: false });
this.actor.connect('enter-event', Lang.bind(this, this._mouseEnter));
this.label = new St.Label({ text: text });
this._container = new St.BoxLayout();
this._container.add(this.label, { fill: true, expand: true });
this._container.add(new St.Label({ text: '>' }));
this.actor.set_child(this._container);
this.menu = new PopupMenu(this.actor, St.Align.MIDDLE, St.Side.LEFT, 0, true);
Main.chrome.addActor(this.menu.actor, { visibleInOverview: true,
affectsStruts: false });
this.menu.actor.hide();
this._openStateChangedId = this.menu.connect('open-state-changed', Lang.bind(this, this._subMenuOpenStateChanged));
this._activateId = this.menu.connect('activate', Lang.bind(this, this._subMenuActivate));
},
_subMenuOpenStateChanged: function(menu, open) {
PopupBaseMenuItem.prototype.setActive.call(this, open);
},
_subMenuActivate: function(menu, menuItem) {
this.emit('activate', null);
},
setMenu: function(newmenu) {
if (this.menu) {
this.menu.close();
this.menu.disconnect(this._openStateChangedId);
this.menu.disconnect(this._activateId);
}
if (newmenu) {
this._openStateChangedId = newmenu.connect('open-state-changed', Lang.bind(this, this._subMenuOpenStateChanged));
this._activateId = newmenu.connect('activate', Lang.bind(this, this._subMenuActivate));
}
this.menu = newmenu;
},
destroy: function() {
if (this.menu)
this.menu.destroy();
PopupBaseMenuItem.prototype.destroy.call(this);
},
setActive: function(active) {
if (this.menu) {
if (active)
this.menu.open(true);
else
this.menu.close();
}
PopupBaseMenuItem.prototype.setActive.call(this, active);
},
handleKeyPress: function(event) {
if (!this.menu)
return false;
if (event.get_key_symbol() == Clutter.Right) {
this.menu.activateFirst();
return true;
}
return this.menu.handleKeyPress(event, true);
},
contains: function(actor) {
return this.menu && this.menu.contains(actor);
},
_mouseEnter: function(event) {
this.setActive(true);
}
};
/* Basic implementation of a menu manager.
* Call addMenu to add menus
*/
function PopupMenuManager(owner) {
this._init(owner);
}
PopupMenuManager.prototype = {
_init: function(owner) {
this._owner = owner;
this.grabbed = false;
this._eventCaptureId = 0;
this._enterEventId = 0;
this._leaveEventId = 0;
this._activeMenu = null;
this._menus = [];
this._delayedMenus = [];
},
addMenu: function(menu, noGrab, position) {
let menudata = {
menu: menu,
openStateChangeId: menu.connect('open-state-changed', Lang.bind(this, this._onMenuOpenState)),
activateId: menu.connect('activate', Lang.bind(this, this._onMenuActivated)),
destroyId: menu.connect('destroy', Lang.bind(this, this._onMenuDestroy)),
enterId: 0,
buttonPressId: 0
};
let source = menu.sourceActor;
if (source) {
menudata.enterId = source.connect('enter-event', Lang.bind(this, this._onMenuSourceEnter, menu));
if (!noGrab)
menudata.buttonPressId = source.connect('button-press-event', Lang.bind(this, this._onMenuSourcePress, menu));
}
if (position == undefined)
this._menus.push(menudata);
else
this._menus.splice(position, 0, menudata);
},
removeMenu: function(menu) {
if (menu == this._activeMenu)
this._closeMenu();
let position = this._findMenu(menu);
if (position == -1) // not a menu we manage
return;
let menudata = this._menus[position];
menu.disconnect(menudata.openStateChangeId);
menu.disconnect(menudata.activateId);
menu.disconnect(menudata.destroyId);
if (menudata.enterId)
menu.sourceActor.disconnect(menudata.enterId);
if (menudata.buttonPressId)
menu.sourceActor.disconnect(menudata.buttonPressId);
this._menus.splice(position, 1);
},
grab: function() {
Main.pushModal(this._owner.actor);
this._eventCaptureId = global.stage.connect('captured-event', Lang.bind(this, this._onEventCapture));
// captured-event doesn't see enter/leave events
this._enterEventId = global.stage.connect('enter-event', Lang.bind(this, this._onEventCapture));
this._leaveEventId = global.stage.connect('leave-event', Lang.bind(this, this._onEventCapture));
this.grabbed = true;
},
ungrab: function() {
global.stage.disconnect(this._eventCaptureId);
this._eventCaptureId = 0;
global.stage.disconnect(this._enterEventId);
this._enterEventId = 0;
global.stage.disconnect(this._leaveEventId);
this._leaveEventId = 0;
Main.popModal(this._owner.actor);
this.grabbed = false;
},
_onMenuOpenState: function(menu, open) {
if (!open && menu == this._activeMenu)
this._activeMenu = null;
else if (open)
this._activeMenu = menu;
},
_onMenuSourceEnter: function(actor, event, menu) {
if (!this.grabbed || menu == this._activeMenu)
return false;
if (this._activeMenu != null)
this._activeMenu.close();
menu.open();
return false;
},
_onMenuSourcePress: function(actor, event, menu) {
if (this.grabbed)
return false;
this.grab();
return false;
},
_onMenuActivated: function(menu, item) {
if (this.grabbed)
this.ungrab();
},
_onMenuDestroy: function(menu) {
this.removeMenu(menu);
},
_eventIsOnActiveMenu: function(event) {
let src = event.get_source();
return this._activeMenu != null
&& (this._activeMenu.contains(src) ||
(this._activeMenu.sourceActor && this._activeMenu.sourceActor.contains(src)));
},
_eventIsOnAnyMenuSource: function(event) {
let src = event.get_source();
for (let i = 0; i < this._menus.length; i++) {
let menu = this._menus[i].menu;
if (menu.sourceActor && menu.sourceActor.contains(src))
return true;
}
return false;
},
_findMenu: function(item) {
for (let i = 0; i < this._menus.length; i++) {
let menudata = this._menus[i];
if (item == menudata.menu)
return i;
}
return -1;
},
_onEventCapture: function(actor, event) {
if (!this.grabbed)
return false;
if (this._owner.menuEventFilter &&
this._owner.menuEventFilter(event))
return true;
let activeMenuContains = this._eventIsOnActiveMenu(event);
let eventType = event.type();
if (eventType == Clutter.EventType.BUTTON_RELEASE) {
if (activeMenuContains) {
return false;
} else {
this._closeMenu();
return true;
}
} else if ((eventType == Clutter.EventType.BUTTON_PRESS && !activeMenuContains)
|| (eventType == Clutter.EventType.KEY_PRESS && event.get_key_symbol() == Clutter.Escape)) {
this._closeMenu();
return true;
} else if (eventType == Clutter.EventType.KEY_PRESS
&& this._activeMenu != null
&& this._activeMenu.handleKeyPress(event, false)) {
return true;
} else if (eventType == Clutter.EventType.KEY_PRESS
&& this._activeMenu != null
&& (event.get_key_symbol() == Clutter.Left
|| event.get_key_symbol() == Clutter.Right)) {
let direction = event.get_key_symbol() == Clutter.Right ? 1 : -1;
let pos = this._findMenu(this._activeMenu);
let next = this._menus[mod(pos + direction, this._menus.length)].menu;
if (next != this._activeMenu) {
this._activeMenu.close();
next.open(false);
next.activateFirst();
}
return true;
} else if (activeMenuContains || this._eventIsOnAnyMenuSource(event)) {
return false;
}
return true;
},
_closeMenu: function() {
if (this._activeMenu != null)
this._activeMenu.close();
this.ungrab();
}
};