Add modal controller class (#908)

* Add ModalController

* Use modalController instead of new Modal

1 files changed, 66 insertions, 0 deletions

diff --git a/ext/bg/js/settings/modal-controller.js b/ext/bg/js/settings/modal-controller.js
new file mode 100644
index 00000000..d604b050
--- /dev/null
+++ b/ext/bg/js/settings/modal-controller.js
@@ -0,0 +1,66 @@
+/*
+ * 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/>.
+ */
+
+/* global
+ * Modal
+ */
+
+class ModalController {
+    constructor() {
+        this._modals = [];
+        this._modalMap = new Map();
+    }
+
+    prepare() {
+        for (const node of document.querySelectorAll('.modal')) {
+            const {id} = node;
+            const modal = new Modal(node);
+            this._modalMap.set(id, modal);
+            this._modals.push(modal);
+        }
+
+        for (const node of document.querySelectorAll('.modal-container')) {
+            const {id} = node;
+            const modal = new Modal(node);
+            this._modalMap.set(id, modal);
+            this._modals.push(modal);
+            node.addEventListener('click', this._onModalContainerClick.bind(this, modal), false);
+        }
+    }
+
+    getModal(name) {
+        const modal = this._modalMap.get(name);
+        return (typeof modal !== 'undefined' ? modal : null);
+    }
+
+    getTopVisibleModal() {
+        for (let i = this._modals.length - 1; i >= 0; --i) {
+            const modal = this._modals[i];
+            if (modal.isVisible()) {
+                return modal;
+            }
+        }
+        return null;
+    }
+
+    // Private
+
+    _onModalContainerClick(modal, e) {
+        if (e.currentTarget !== e.target) { return; }
+        modal.setVisible(false);
+    }
+}