1 files changed, 84 insertions, 0 deletions
diff --git a/ext/bg/js/settings/status-footer.js b/ext/bg/js/settings/status-footer.js
new file mode 100644
index 00000000..391ad445
--- /dev/null
+++ b/ext/bg/js/settings/status-footer.js
@@ -0,0 +1,84 @@
+/*
+ * 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
+ * PanelElement
+ */
+
+class StatusFooter extends PanelElement {
+    constructor(node) {
+        super({
+            node,
+            closingAnimationDuration: 375 // Milliseconds; includes buffer
+        });
+        this._body = node.querySelector('.status-footer');
+    }
+
+    prepare() {
+        this.on('closeCompleted', this._onCloseCompleted.bind(this), false);
+        this._body.querySelector('.status-footer-header-close').addEventListener('click', this._onCloseClick.bind(this), false);
+    }
+
+    getTaskContainer(selector) {
+        return this._body.querySelector(selector);
+    }
+
+    isTaskActive(selector) {
+        const target = this.getTaskContainer(selector);
+        return (target !== null && target.dataset.active);
+    }
+
+    setTaskActive(selector, active) {
+        const target = this.getTaskContainer(selector);
+        if (target === null) { return; }
+
+        const activeElements = new Set();
+        for (const element of this._body.querySelectorAll('.status-footer-item')) {
+            if (element.dataset.active) {
+                activeElements.add(element);
+            }
+        }
+
+        if (active) {
+            target.dataset.active = 'true';
+            if (!this.isVisible()) {
+                this.setVisible(true);
+            }
+            target.hidden = false;
+        } else {
+            delete target.dataset.active;
+            if (activeElements.size <= 1) {
+                this.setVisible(false);
+            }
+        }
+    }
+
+    // Private
+
+    _onCloseClick(e) {
+        e.preventDefault();
+        this.setVisible(false);
+    }
+
+    _onCloseCompleted() {
+        for (const element of this._body.querySelectorAll('.status-footer-item')) {
+            if (!element.dataset.active) {
+                element.hidden = true;
+            }
+        }
+    }
+}