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-rw-r--r--ext/bg/js/settings/modal.js65
1 files changed, 65 insertions, 0 deletions
diff --git a/ext/bg/js/settings/modal.js b/ext/bg/js/settings/modal.js
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+++ b/ext/bg/js/settings/modal.js
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+/*
+ * 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);
+ }
+}