/* * Copyright (C) 2020 Yomichan Authors * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. */ class Modal extends EventDispatcher { constructor(node) { super(); this._node = node; this._eventListeners = new EventListenerCollection(); } get node() { return this._node; } setVisible(value) { this._getWrappedNode().modal(value ? 'show' : 'hide'); } on(eventName, callback) { if (eventName === 'visibilityChanged') { if (this._eventListeners.size === 0) { const wrappedNode = this._getWrappedNode(); this._eventListeners.on(wrappedNode, 'hidden.bs.modal', this._onModalHide.bind(this)); this._eventListeners.on(wrappedNode, 'shown.bs.modal', this._onModalShow.bind(this)); } } return super.on(eventName, callback); } off(eventName, callback) { const result = super.off(eventName, callback); if (eventName === 'visibilityChanged' && !this.hasListeners(eventName)) { this._eventListeners.removeAllEventListeners(); } return result; } // Private _onModalHide() { this.trigger('visibilityChanged', {visible: false}); } _onModalShow() { this.trigger('visibilityChanged', {visible: true}); } _getWrappedNode() { return $(this._node); } }