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-rw-r--r--ext/mixed/js/display-notification.js90
1 files changed, 90 insertions, 0 deletions
diff --git a/ext/mixed/js/display-notification.js b/ext/mixed/js/display-notification.js
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+++ b/ext/mixed/js/display-notification.js
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+/*
+ * Copyright (C) 2017-2020 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 DisplayNotification {
+ constructor(container, node) {
+ this._container = container;
+ this._node = node;
+ this._body = node.querySelector('.footer-notification-body');
+ this._closeButton = node.querySelector('.footer-notification-close-button');
+ this._eventListeners = new EventListenerCollection();
+ this._closeTimer = null;
+ }
+
+ open() {
+ if (!this.isClosed()) { return; }
+
+ this._clearTimer();
+
+ const node = this._node;
+ this._container.appendChild(node);
+ const style = getComputedStyle(node);
+ node.hidden = true;
+ style.getPropertyValue('opacity'); // Force CSS update, allowing animation
+ node.hidden = false;
+ this._eventListeners.addEventListener(this._closeButton, 'click', this._onCloseButtonClick.bind(this), false);
+ }
+
+ close(animate=false) {
+ if (this.isClosed()) { return; }
+
+ if (animate) {
+ if (this._closeTimer !== null) { return; }
+
+ this._node.hidden = true;
+ this._closeTimer = setTimeout(this._onDelayClose.bind(this), 200);
+ } else {
+ this._clearTimer();
+
+ this._eventListeners.removeAllEventListeners();
+ const parent = this._node.parentNode;
+ if (parent !== null) {
+ parent.removeChild(this._node);
+ }
+ }
+ }
+
+ setContent(text) {
+ this._body.textContent = text;
+ }
+
+ isClosing() {
+ return this._closeTimer !== null;
+ }
+
+ isClosed() {
+ return this._node.parentNode === null;
+ }
+
+ // Private
+
+ _onCloseButtonClick() {
+ this.close(true);
+ }
+
+ _onDelayClose() {
+ this._closeTimer = null;
+ this.close(false);
+ }
+
+ _clearTimer() {
+ if (this._closeTimer !== null) {
+ clearTimeout(this._closeTimer);
+ this._closeTimer = null;
+ }
+ }
+}