// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*- const Clutter = imports.gi.Clutter; const GLib = imports.gi.GLib; const Gtk = imports.gi.Gtk; const Gio = imports.gi.Gio; const Lang = imports.lang; const Shell = imports.gi.Shell; const Signals = imports.signals; const St = imports.gi.St; const Atk = imports.gi.Atk; const BoxPointer = imports.ui.boxpointer; const GrabHelper = imports.ui.grabHelper; const Main = imports.ui.main; const Params = imports.misc.params; const Separator = imports.ui.separator; const Slider = imports.ui.slider; const Tweener = imports.ui.tweener; const Ornament = { NONE: 0, DOT: 1, CHECK: 2, }; function _ensureStyle(actor) { if (actor.get_children) { let children = actor.get_children(); for (let i = 0; i < children.length; i++) _ensureStyle(children[i]); } if (actor instanceof St.Widget) actor.ensure_style(); } function isPopupMenuItemVisible(child) { if (child._delegate instanceof PopupMenuSection) if (child._delegate.isEmpty()) return false; return child.visible; } /** * @side Side to which the arrow points. */ function arrowIcon(side) { let rotation; switch (side) { case St.Side.TOP: rotation = 180; break; case St.Side.RIGHT: rotation = - 90; break; case St.Side.BOTTOM: rotation = 0; break; case St.Side.LEFT: rotation = 90; break; } let gicon = new Gio.FileIcon({ file: Gio.File.new_for_path(global.datadir + '/theme/menu-arrow-symbolic.svg') }); let arrow = new St.Icon({ style_class: 'popup-menu-arrow', gicon: gicon, accessible_role: Atk.Role.ARROW, y_expand: true, y_align: Clutter.ActorAlign.CENTER }); arrow.rotation_angle_z = rotation; return arrow; } const PopupBaseMenuItem = new Lang.Class({ Name: 'PopupBaseMenuItem', _init: function (params) { params = Params.parse (params, { reactive: true, activate: true, hover: true, style_class: null, can_focus: true }); this.actor = new St.BoxLayout({ style_class: 'popup-menu-item', reactive: params.reactive, track_hover: params.reactive, can_focus: params.can_focus, accessible_role: Atk.Role.MENU_ITEM }); this.actor._delegate = this; this._ornament = Ornament.NONE; this._ornamentLabel = new St.Label({ style_class: 'popup-menu-ornament' }); this.actor.add(this._ornamentLabel); this._parent = null; this.active = false; this._activatable = params.reactive && params.activate; this._sensitive = true; if (!this._activatable) this.actor.add_style_class_name('popup-inactive-menu-item'); if (params.style_class) this.actor.add_style_class_name(params.style_class); if (this._activatable) { this.actor.connect('button-release-event', Lang.bind(this, this._onButtonReleaseEvent)); this.actor.connect('key-press-event', Lang.bind(this, this._onKeyPressEvent)); } if (params.reactive && params.hover) this.actor.connect('notify::hover', Lang.bind(this, this._onHoverChanged)); this.actor.connect('key-focus-in', Lang.bind(this, this._onKeyFocusIn)); this.actor.connect('key-focus-out', Lang.bind(this, this._onKeyFocusOut)); this.actor.connect('destroy', Lang.bind(this, this._onDestroy)); }, _getTopMenu: function() { if (this._parent) return this._parent._getTopMenu(); else return this; }, _setParent: function(parent) { this._parent = parent; }, _onButtonReleaseEvent: function (actor, event) { this.activate(event); return Clutter.EVENT_STOP; }, _onKeyPressEvent: function (actor, event) { let symbol = event.get_key_symbol(); if (symbol == Clutter.KEY_space || symbol == Clutter.KEY_Return) { this.activate(event); return Clutter.EVENT_STOP; } return Clutter.EVENT_PROPAGATE; }, _onKeyFocusIn: function (actor) { this.setActive(true); }, _onKeyFocusOut: function (actor) { this.setActive(false); }, _onHoverChanged: 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'); this.actor.grab_key_focus(); } else { this.actor.remove_style_pseudo_class('active'); } this.emit('active-changed', active); } }, syncSensitive: function() { let sensitive = this.getSensitive(); this.actor.reactive = sensitive; this.actor.can_focus = sensitive; this.emit('sensitive-changed'); return sensitive; }, getSensitive: function() { let parentSensitive = this._parent ? this._parent.getSensitive() : true; return this._activatable && this._sensitive && parentSensitive; }, setSensitive: function(sensitive) { if (this._sensitive == sensitive) return; this._sensitive = sensitive; this.syncSensitive(); }, destroy: function() { this.actor.destroy(); }, _onDestroy: function() { this.emit('destroy'); }, setOrnament: function(ornament) { if (ornament == this._ornament) return; this._ornament = ornament; if (ornament == Ornament.DOT) { this._ornamentLabel.text = '\u2022'; this.actor.add_accessible_state(Atk.StateType.CHECKED); } else if (ornament == Ornament.CHECK) { this._ornamentLabel.text = '\u2713'; this.actor.add_accessible_state(Atk.StateType.CHECKED); } else if (ornament == Ornament.NONE) { this._ornamentLabel.text = ''; this.actor.remove_accessible_state(Atk.StateType.CHECKED); } } }); Signals.addSignalMethods(PopupBaseMenuItem.prototype); const PopupMenuItem = new Lang.Class({ Name: 'PopupMenuItem', Extends: PopupBaseMenuItem, _init: function (text, params) { this.parent(params); this.label = new St.Label({ text: text }); this.actor.add_child(this.label); this.actor.label_actor = this.label } }); const PopupSeparatorMenuItem = new Lang.Class({ Name: 'PopupSeparatorMenuItem', Extends: PopupBaseMenuItem, _init: function (text) { this.parent({ reactive: false, can_focus: false}); this.label = new St.Label({ text: text || '' }); this.actor.add(this.label); this.actor.label_actor = this.label; this.label.connect('notify::text', Lang.bind(this, this._syncVisibility)); this._syncVisibility(); this._separator = new Separator.HorizontalSeparator({ style_class: 'popup-separator-menu-item' }); this.actor.add(this._separator.actor, { expand: true }); }, _syncVisibility: function() { this.label.visible = this.label.text != ''; } }); const Switch = new Lang.Class({ Name: 'Switch', _init: function(state) { this.actor = new St.Bin({ style_class: 'toggle-switch', accessible_role: Atk.Role.CHECK_BOX, can_focus: true }); // 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); } }); const PopupSwitchMenuItem = new Lang.Class({ Name: 'PopupSwitchMenuItem', Extends: PopupBaseMenuItem, _init: function(text, active, params) { this.parent(params); this.label = new St.Label({ text: text }); this._switch = new Switch(active); this.actor.accessible_role = Atk.Role.CHECK_MENU_ITEM; this.checkAccessibleState(); this.actor.label_actor = this.label; this.actor.add_child(this.label); this._statusBin = new St.Bin({ x_align: St.Align.END }); this.actor.add(this._statusBin, { expand: true, x_align: St.Align.END }); this._statusLabel = new St.Label({ text: '', style_class: 'popup-status-menu-item' }); this._statusBin.child = this._switch.actor; }, setStatus: function(text) { if (text != null) { this._statusLabel.text = text; this._statusBin.child = this._statusLabel; this.actor.reactive = false; this.actor.accessible_role = Atk.Role.MENU_ITEM; } else { this._statusBin.child = this._switch.actor; this.actor.reactive = true; this.actor.accessible_role = Atk.Role.CHECK_MENU_ITEM; } this.checkAccessibleState(); }, activate: function(event) { if (this._switch.actor.mapped) { this.toggle(); } // we allow pressing space to toggle the switch // without closing the menu if (event.type() == Clutter.EventType.KEY_PRESS && event.get_key_symbol() == Clutter.KEY_space) return; this.parent(event); }, toggle: function() { this._switch.toggle(); this.emit('toggled', this._switch.state); this.checkAccessibleState(); }, get state() { return this._switch.state; }, setToggleState: function(state) { this._switch.setToggleState(state); this.checkAccessibleState(); }, checkAccessibleState: function() { switch (this.actor.accessible_role) { case Atk.Role.CHECK_MENU_ITEM: if (this._switch.state) this.actor.add_accessible_state (Atk.StateType.CHECKED); else this.actor.remove_accessible_state (Atk.StateType.CHECKED); break; default: this.actor.remove_accessible_state (Atk.StateType.CHECKED); } } }); const PopupImageMenuItem = new Lang.Class({ Name: 'PopupImageMenuItem', Extends: PopupBaseMenuItem, _init: function (text, iconName, params) { this.parent(params); this.label = new St.Label({ text: text }); this.addActor(this.label); this._icon = new St.Icon({ style_class: 'popup-menu-icon' }); this.addActor(this._icon, { align: St.Align.END }); this.setIcon(iconName); }, setIcon: function(name) { this._icon.icon_name = name; } }); const PopupMenuBase = new Lang.Class({ Name: 'PopupMenuBase', Abstract: true, _init: function(sourceActor, styleClass) { this.sourceActor = sourceActor; this._parent = null; if (styleClass !== undefined) { this.box = new St.BoxLayout({ style_class: styleClass, vertical: true }); } else { this.box = new St.BoxLayout({ vertical: true }); } this.length = 0; this.isOpen = false; // If set, we don't send events (including crossing events) to the source actor // for the menu which causes its prelight state to freeze this.blockSourceEvents = false; this._activeMenuItem = null; this._settingsActions = { }; this._sensitive = true; this._sessionUpdatedId = Main.sessionMode.connect('updated', Lang.bind(this, this._sessionUpdated)); }, _getTopMenu: function() { if (this._parent) return this._parent._getTopMenu(); else return this; }, _setParent: function(parent) { this._parent = parent; }, getSensitive: function() { let parentSensitive = this._parent ? this._parent.getSensitive() : true; return this._sensitive && parentSensitive; }, setSensitive: function(sensitive) { this._sensitive = sensitive; this.emit('sensitive-changed'); }, _sessionUpdated: function() { this._setSettingsVisibility(Main.sessionMode.allowSettings); }, addAction: function(title, callback) { let menuItem = new PopupMenuItem(title); this.addMenuItem(menuItem); menuItem.connect('activate', Lang.bind(this, function (menuItem, event) { callback(event); })); return menuItem; }, addSettingsAction: function(title, desktopFile) { let menuItem = this.addAction(title, function() { let app = Shell.AppSystem.get_default().lookup_app(desktopFile); if (!app) { log('Settings panel for desktop file ' + desktopFile + ' could not be loaded!'); return; } Main.overview.hide(); app.activate(); }); menuItem.actor.visible = Main.sessionMode.allowSettings; this._settingsActions[desktopFile] = menuItem; return menuItem; }, _setSettingsVisibility: function(visible) { for (let id in this._settingsActions) { let item = this._settingsActions[id]; item.actor.visible = visible; } }, isEmpty: function() { let hasVisibleChildren = this.box.get_children().some(function(child) { if (child._delegate instanceof PopupSeparatorMenuItem) return false; return isPopupMenuItemVisible(child); }); return !hasVisibleChildren; }, itemActivated: function(animate) { if (animate == undefined) animate = BoxPointer.PopupAnimation.FULL; this._getTopMenu().close(animate); }, _subMenuActiveChanged: function(submenu, submenuItem) { if (this._activeMenuItem && this._activeMenuItem != submenuItem) this._activeMenuItem.setActive(false); this._activeMenuItem = submenuItem; this.emit('active-changed', submenuItem); }, _connectItemSignals: function(menuItem) { 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._sensitiveChangeId = menuItem.connect('sensitive-changed', Lang.bind(this, function() { let sensitive = menuItem.getSensitive(); if (!sensitive && this._activeMenuItem == menuItem) { if (!this.actor.navigate_focus(menuItem.actor, Gtk.DirectionType.TAB_FORWARD, true)) this.actor.grab_key_focus(); } else if (sensitive && this._activeMenuItem == null) { if (global.stage.get_key_focus() == this.actor) menuItem.actor.grab_key_focus(); } })); menuItem._activateId = menuItem.connect('activate', Lang.bind(this, function (menuItem, event) { this.emit('activate', menuItem); this.itemActivated(BoxPointer.PopupAnimation.FULL); })); menuItem._parentSensitiveChangeId = this.connect('sensitive-changed', Lang.bind(this, function() { menuItem.syncSensitive(); })); // the weird name is to avoid a conflict with some random property // the menuItem may have, called destroyId // (FIXME: in the future it may make sense to have container objects // like PopupMenuManager does) menuItem._popupMenuDestroyId = menuItem.connect('destroy', Lang.bind(this, function(menuItem) { menuItem.disconnect(menuItem._popupMenuDestroyId); menuItem.disconnect(menuItem._activateId); menuItem.disconnect(menuItem._activeChangeId); menuItem.disconnect(menuItem._sensitiveChangeId); this.disconnect(menuItem._parentSensitiveChangeId); if (menuItem == this._activeMenuItem) this._activeMenuItem = null; })); }, _updateSeparatorVisibility: function(menuItem) { if (menuItem.label.text) return; let children = this.box.get_children(); let index = children.indexOf(menuItem.actor); if (index < 0) return; let childBeforeIndex = index - 1; while (childBeforeIndex >= 0 && !isPopupMenuItemVisible(children[childBeforeIndex])) childBeforeIndex--; if (childBeforeIndex < 0 || children[childBeforeIndex]._delegate instanceof PopupSeparatorMenuItem) { menuItem.actor.hide(); return; } let childAfterIndex = index + 1; while (childAfterIndex < children.length && !isPopupMenuItemVisible(children[childAfterIndex])) childAfterIndex++; if (childAfterIndex >= children.length || children[childAfterIndex]._delegate instanceof PopupSeparatorMenuItem) { menuItem.actor.hide(); return; } menuItem.actor.show(); }, addMenuItem: function(menuItem, position) { let before_item = null; if (position == undefined) { this.box.add(menuItem.actor); } else { let items = this._getMenuItems(); if (position < items.length) { before_item = items[position].actor; this.box.insert_child_below(menuItem.actor, before_item); } else { this.box.add(menuItem.actor); } } if (menuItem instanceof PopupMenuSection) { let activeChangeId = menuItem.connect('active-changed', Lang.bind(this, this._subMenuActiveChanged)); let parentOpenStateChangedId = this.connect('open-state-changed', function(self, open) { if (open) menuItem.open(); else menuItem.close(); }); let parentClosingId = this.connect('menu-closed', function() { menuItem.emit('menu-closed'); }); let subMenuSensitiveChangedId = this.connect('sensitive-changed', Lang.bind(this, function() { menuItem.emit('sensitive-changed'); })); menuItem.connect('destroy', Lang.bind(this, function() { menuItem.disconnect(activeChangeId); this.disconnect(subMenuSensitiveChangedId); this.disconnect(parentOpenStateChangedId); this.disconnect(parentClosingId); this.length--; })); } else if (menuItem instanceof PopupSubMenuMenuItem) { if (before_item == null) this.box.add(menuItem.menu.actor); else this.box.insert_child_below(menuItem.menu.actor, before_item); this._connectItemSignals(menuItem); let subMenuActiveChangeId = menuItem.menu.connect('active-changed', Lang.bind(this, this._subMenuActiveChanged)); let closingId = this.connect('menu-closed', function() { menuItem.menu.close(BoxPointer.PopupAnimation.NONE); }); menuItem.connect('destroy', Lang.bind(this, function() { menuItem.menu.disconnect(subMenuActiveChangeId); this.disconnect(closingId); })); } else if (menuItem instanceof PopupSeparatorMenuItem) { this._connectItemSignals(menuItem); // updateSeparatorVisibility needs to get called any time the // separator's adjacent siblings change visibility or position. // open-state-changed isn't exactly that, but doing it in more // precise ways would require a lot more bookkeeping. let openStateChangeId = this.connect('open-state-changed', Lang.bind(this, function() { this._updateSeparatorVisibility(menuItem); })); let destroyId = menuItem.connect('destroy', Lang.bind(this, function() { this.disconnect(openStateChangeId); menuItem.disconnect(destroyId); })); } else if (menuItem instanceof PopupBaseMenuItem) this._connectItemSignals(menuItem); else throw TypeError("Invalid argument to PopupMenuBase.addMenuItem()"); menuItem._setParent(this); this.length++; }, _getMenuItems: function() { return this.box.get_children().map(function (actor) { return actor._delegate; }).filter(function(item) { return item instanceof PopupBaseMenuItem || item instanceof PopupMenuSection; }); }, get firstMenuItem() { let items = this._getMenuItems(); if (items.length) return items[0]; else return null; }, get numMenuItems() { return this._getMenuItems().length; }, removeAll: function() { let children = this._getMenuItems(); for (let i = 0; i < children.length; i++) { let item = children[i]; item.destroy(); } }, toggle: function() { if (this.isOpen) this.close(BoxPointer.PopupAnimation.FULL); else this.open(BoxPointer.PopupAnimation.FULL); }, destroy: function() { this.close(); this.removeAll(); this.actor.destroy(); this.emit('destroy'); Main.sessionMode.disconnect(this._sessionUpdatedId); this._sessionUpdatedId = 0; } }); Signals.addSignalMethods(PopupMenuBase.prototype); const PopupMenu = new Lang.Class({ Name: 'PopupMenu', Extends: PopupMenuBase, _init: function(sourceActor, arrowAlignment, arrowSide) { this.parent(sourceActor, 'popup-menu-content'); this._arrowAlignment = arrowAlignment; this._arrowSide = arrowSide; this._boxPointer = new BoxPointer.BoxPointer(arrowSide, { x_fill: true, y_fill: true, x_align: St.Align.START }); this.actor = this._boxPointer.actor; this.actor._delegate = this; this.actor.style_class = 'popup-menu-boxpointer'; this._boxPointer.bin.set_child(this.box); this.actor.add_style_class_name('popup-menu'); global.focus_manager.add_group(this.actor); this.actor.reactive = true; this._openedSubMenu = null; }, _setOpenedSubMenu: function(submenu) { if (this._openedSubMenu) this._openedSubMenu.close(true); this._openedSubMenu = submenu; }, setArrowOrigin: function(origin) { this._boxPointer.setArrowOrigin(origin); }, setSourceAlignment: function(alignment) { this._boxPointer.setSourceAlignment(alignment); }, open: function(animate) { if (this.isOpen) return; if (this.isEmpty()) return; this.isOpen = true; this._boxPointer.setPosition(this.sourceActor, this._arrowAlignment); this._boxPointer.show(animate); this.actor.raise_top(); this.emit('open-state-changed', true); }, close: function(animate) { if (this._activeMenuItem) this._activeMenuItem.setActive(false); if (this._boxPointer.actor.visible) { this._boxPointer.hide(animate, Lang.bind(this, function() { this.emit('menu-closed'); })); } if (!this.isOpen) return; this.isOpen = false; this.emit('open-state-changed', false); } }); const PopupDummyMenu = new Lang.Class({ Name: 'PopupDummyMenu', _init: function(sourceActor) { this.sourceActor = sourceActor; this.actor = sourceActor; this.actor._delegate = this; }, getSensitive: function() { return true; }, open: function() { this.emit('open-state-changed', true); }, close: function() { this.emit('open-state-changed', false); }, toggle: function() {}, destroy: function() { this.emit('destroy'); }, }); Signals.addSignalMethods(PopupDummyMenu.prototype); const PopupSubMenu = new Lang.Class({ Name: 'PopupSubMenu', Extends: PopupMenuBase, _init: function(sourceActor, sourceArrow) { this.parent(sourceActor); this._arrow = sourceArrow; // Since a function of a submenu might be to provide a "More.." expander // with long content, we make it scrollable - the scrollbar will only take // effect if a CSS max-height is set on the top menu. this.actor = new St.ScrollView({ style_class: 'popup-sub-menu', hscrollbar_policy: Gtk.PolicyType.NEVER, vscrollbar_policy: Gtk.PolicyType.NEVER }); this.actor.add_actor(this.box); this.actor._delegate = this; this.actor.clip_to_allocation = true; this.actor.connect('key-press-event', Lang.bind(this, this._onKeyPressEvent)); this.actor.hide(); }, _needsScrollbar: function() { let topMenu = this._getTopMenu(); let [topMinHeight, topNaturalHeight] = topMenu.actor.get_preferred_height(-1); let topThemeNode = topMenu.actor.get_theme_node(); let topMaxHeight = topThemeNode.get_max_height(); return topMaxHeight >= 0 && topNaturalHeight >= topMaxHeight; }, getSensitive: function() { return this._sensitive && this.sourceActor._delegate.getSensitive(); }, open: function(animate) { if (this.isOpen) return; if (this.isEmpty()) return; this.isOpen = true; this.emit('open-state-changed', true); this.actor.show(); let needsScrollbar = this._needsScrollbar(); // St.ScrollView always requests space horizontally for a possible vertical // scrollbar if in AUTOMATIC mode. Doing better would require implementation // of width-for-height in St.BoxLayout and St.ScrollView. This looks bad // when we *don't* need it, so turn off the scrollbar when that's true. // Dynamic changes in whether we need it aren't handled properly. this.actor.vscrollbar_policy = needsScrollbar ? Gtk.PolicyType.AUTOMATIC : Gtk.PolicyType.NEVER; if (needsScrollbar) this.actor.add_style_pseudo_class('scrolled'); else this.actor.remove_style_pseudo_class('scrolled'); // It looks funny if we animate with a scrollbar (at what point is // the scrollbar added?) so just skip that case if (animate && needsScrollbar) animate = false; if (animate) { let [minHeight, naturalHeight] = this.actor.get_preferred_height(-1); this.actor.height = 0; this.actor._arrowRotation = this._arrow.rotation_angle_z; Tweener.addTween(this.actor, { _arrowRotation: this.actor._arrowRotation + 90, height: naturalHeight, time: 0.25, onUpdateScope: this, onUpdate: function() { this._arrow.rotation_angle_z = this.actor._arrowRotation; }, onCompleteScope: this, onComplete: function() { this.actor.set_height(-1); } }); } else { this._arrow.rotation_angle_z = this.actor._arrowRotation + 90; } }, close: function(animate) { if (!this.isOpen) return; this.isOpen = false; this.emit('open-state-changed', false); if (this._activeMenuItem) this._activeMenuItem.setActive(false); if (animate && this._needsScrollbar()) animate = false; if (animate) { this.actor._arrowRotation = this._arrow.rotation_angle_z; Tweener.addTween(this.actor, { _arrowRotation: this.actor._arrowRotation - 90, height: 0, time: 0.25, onUpdateScope: this, onUpdate: function() { this._arrow.rotation_angle_z = this.actor._arrowRotation; }, onCompleteScope: this, onComplete: function() { this.actor.hide(); this.actor.set_height(-1); }, }); } else { this._arrow.rotation_angle_z = this.actor._arrowRotation - 90; this.actor.hide(); } }, _onKeyPressEvent: function(actor, event) { // Move focus back to parent menu if the user types Left. if (this.isOpen && event.get_key_symbol() == Clutter.KEY_Left) { this.close(BoxPointer.PopupAnimation.FULL); this.sourceActor._delegate.setActive(true); return Clutter.EVENT_STOP; } return Clutter.EVENT_PROPAGATE; } }); /** * PopupMenuSection: * * A section of a PopupMenu which is handled like a submenu * (you can add and remove items, you can destroy it, you * can add it to another menu), but is completely transparent * to the user */ const PopupMenuSection = new Lang.Class({ Name: 'PopupMenuSection', Extends: PopupMenuBase, _init: function() { this.parent(); this.actor = this.box; this.actor._delegate = this; this.isOpen = true; }, // deliberately ignore any attempt to open() or close(), but emit the // corresponding signal so children can still pick it up open: function() { this.emit('open-state-changed', true); }, close: function() { this.emit('open-state-changed', false); }, }); const PopupSubMenuMenuItem = new Lang.Class({ Name: 'PopupSubMenuMenuItem', Extends: PopupBaseMenuItem, _init: function(text, wantIcon) { this.parent(); this.actor.add_style_class_name('popup-submenu-menu-item'); if (wantIcon) { this.icon = new St.Icon({ style_class: 'popup-menu-icon' }); this.actor.add_child(this.icon); } this.label = new St.Label({ text: text, y_expand: true, y_align: Clutter.ActorAlign.CENTER }); this.actor.add_child(this.label); this.actor.label_actor = this.label; let expander = new St.Bin({ style_class: 'popup-menu-item-expander' }); this.actor.add(expander, { expand: true }); this.status = new St.Label({ style_class: 'popup-status-menu-item', y_expand: true, y_align: Clutter.ActorAlign.CENTER }); this.actor.add_child(this.status); this._triangle = arrowIcon(St.Side.RIGHT); this._triangle.pivot_point = new Clutter.Point({ x: 0.5, y: 0.6 }); this._triangleBin = new St.Widget({ y_expand: true, y_align: Clutter.ActorAlign.CENTER }); this._triangleBin.add_child(this._triangle); if (this._triangleBin.get_text_direction() == Clutter.TextDirection.RTL) this._triangleBin.set_scale(-1.0, 1.0); this.actor.add_child(this._triangleBin); this.actor.add_accessible_state (Atk.StateType.EXPANDABLE); this.menu = new PopupSubMenu(this.actor, this._triangle); this.menu.connect('open-state-changed', Lang.bind(this, this._subMenuOpenStateChanged)); }, _setParent: function(parent) { this.parent(parent); this.menu._setParent(parent); }, syncSensitive: function() { let sensitive = this.parent(); this._triangle.visible = sensitive; if (!sensitive) this.menu.close(false); }, _subMenuOpenStateChanged: function(menu, open) { if (open) { this.actor.add_style_pseudo_class('open'); this._getTopMenu()._setOpenedSubMenu(this.menu); this.actor.add_accessible_state (Atk.StateType.EXPANDED); } else { this.actor.remove_style_pseudo_class('open'); this._getTopMenu()._setOpenedSubMenu(null); this.actor.remove_accessible_state (Atk.StateType.EXPANDED); } }, destroy: function() { this.menu.destroy(); this.parent(); }, setSubmenuShown: function(open) { if (open) this.menu.open(BoxPointer.PopupAnimation.FULL); else this.menu.close(BoxPointer.PopupAnimation.FULL); }, _setOpenState: function(open) { this.setSubmenuShown(open); }, _getOpenState: function() { return this.menu.isOpen; }, _onKeyPressEvent: function(actor, event) { let symbol = event.get_key_symbol(); if (symbol == Clutter.KEY_Right) { this._setOpenState(true); this.menu.actor.navigate_focus(null, Gtk.DirectionType.DOWN, false); return Clutter.EVENT_STOP; } else if (symbol == Clutter.KEY_Left && this._getOpenState()) { this._setOpenState(false); return Clutter.EVENT_STOP; } return this.parent(actor, event); }, activate: function(event) { this._setOpenState(true); }, _onButtonReleaseEvent: function(actor) { this._setOpenState(!this._getOpenState()); return Clutter.EVENT_PROPAGATE; } }); /* Basic implementation of a menu manager. * Call addMenu to add menus */ const PopupMenuManager = new Lang.Class({ Name: 'PopupMenuManager', _init: function(owner, grabParams) { this._owner = owner; this._grabHelper = new GrabHelper.GrabHelper(owner.actor, grabParams); this._menus = []; }, addMenu: function(menu, position) { if (this._findMenu(menu) > -1) return; let menudata = { menu: menu, openStateChangeId: menu.connect('open-state-changed', Lang.bind(this, this._onMenuOpenState)), destroyId: menu.connect('destroy', Lang.bind(this, this._onMenuDestroy)), enterId: 0, focusInId: 0 }; let source = menu.sourceActor; if (source) { if (!menu.blockSourceEvents) this._grabHelper.addActor(source); menudata.enterId = source.connect('enter-event', Lang.bind(this, function() { return this._onMenuSourceEnter(menu); })); menudata.focusInId = source.connect('key-focus-in', Lang.bind(this, function() { this._onMenuSourceEnter(menu); })); } if (position == undefined) this._menus.push(menudata); else this._menus.splice(position, 0, menudata); }, removeMenu: function(menu) { if (menu == this.activeMenu) this._closeMenu(false, menu); 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.destroyId); if (menudata.enterId) menu.sourceActor.disconnect(menudata.enterId); if (menudata.focusInId) menu.sourceActor.disconnect(menudata.focusInId); if (menu.sourceActor) this._grabHelper.removeActor(menu.sourceActor); this._menus.splice(position, 1); }, get activeMenu() { let firstGrab = this._grabHelper.grabStack[0]; if (firstGrab) return firstGrab.actor._delegate; else return null; }, ignoreRelease: function() { return this._grabHelper.ignoreRelease(); }, _onMenuOpenState: function(menu, open) { if (open) { if (this.activeMenu) this.activeMenu.close(BoxPointer.PopupAnimation.FADE); this._grabHelper.grab({ actor: menu.actor, focus: menu.sourceActor, onUngrab: Lang.bind(this, this._closeMenu, menu) }); } else { this._grabHelper.ungrab({ actor: menu.actor }); } }, _changeMenu: function(newMenu) { newMenu.open(this.activeMenu ? BoxPointer.PopupAnimation.FADE : BoxPointer.PopupAnimation.FULL); }, _onMenuSourceEnter: function(menu) { if (!this._grabHelper.grabbed) return Clutter.EVENT_PROPAGATE; if (this._grabHelper.isActorGrabbed(menu.actor)) return Clutter.EVENT_PROPAGATE; this._changeMenu(menu); return Clutter.EVENT_PROPAGATE; }, _onMenuDestroy: function(menu) { this.removeMenu(menu); }, _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; }, _closeMenu: function(isUser, menu) { // If this isn't a user action, we called close() // on the BoxPointer ourselves, so we shouldn't // reanimate. if (isUser) menu.close(BoxPointer.PopupAnimation.FULL); } });