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