1 files changed, 0 insertions, 103 deletions
diff --git a/ext/mixed/js/panel-element.js b/ext/mixed/js/panel-element.js
deleted file mode 100644
index 1ef61d6f..00000000
--- a/ext/mixed/js/panel-element.js
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * Copyright (C) 2020-2021  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 PanelElement extends EventDispatcher {
-    constructor({node, closingAnimationDuration}) {
-        super();
-        this._node = node;
-        this._closingAnimationDuration = closingAnimationDuration;
-        this._hiddenAnimatingClass = 'hidden-animating';
-        this._mutationObserver = null;
-        this._visible = false;
-        this._closeTimer = null;
-    }
-
-    get node() {
-        return this._node;
-    }
-
-    isVisible() {
-        return !this._node.hidden;
-    }
-
-    setVisible(value, animate=true) {
-        value = !!value;
-        if (this.isVisible() === value) { return; }
-
-        if (this._closeTimer !== null) {
-            clearTimeout(this._closeTimer);
-            this._completeClose(true);
-        }
-
-        const node = this._node;
-        const {classList} = node;
-        if (value) {
-            if (animate) { classList.add(this._hiddenAnimatingClass); }
-            getComputedStyle(node).getPropertyValue('display'); // Force update of CSS display property, allowing animation
-            classList.remove(this._hiddenAnimatingClass);
-            node.hidden = false;
-            node.focus();
-        } else {
-            if (animate) { classList.add(this._hiddenAnimatingClass); }
-            node.hidden = true;
-            if (animate) {
-                this._closeTimer = setTimeout(() => this._completeClose(false), this._closingAnimationDuration);
-            }
-        }
-    }
-
-    on(eventName, callback) {
-        if (eventName === 'visibilityChanged') {
-            if (this._mutationObserver === null) {
-                this._visible = this.isVisible();
-                this._mutationObserver = new MutationObserver(this._onMutation.bind(this));
-                this._mutationObserver.observe(this._node, {
-                    attributes: true,
-                    attributeFilter: ['hidden'],
-                    attributeOldValue: true
-                });
-            }
-        }
-        return super.on(eventName, callback);
-    }
-
-    off(eventName, callback) {
-        const result = super.off(eventName, callback);
-        if (eventName === 'visibilityChanged' && !this.hasListeners(eventName)) {
-            if (this._mutationObserver !== null) {
-                this._mutationObserver.disconnect();
-                this._mutationObserver = null;
-            }
-        }
-        return result;
-    }
-
-    // Private
-
-    _onMutation() {
-        const visible = this.isVisible();
-        if (this._visible === visible) { return; }
-        this._visible = visible;
-        this.trigger('visibilityChanged', {visible});
-    }
-
-    _completeClose(reopening) {
-        this._closeTimer = null;
-        this._node.classList.remove(this._hiddenAnimatingClass);
-        this.trigger('closeCompleted', {reopening});
-    }
-}