1 files changed, 63 insertions, 0 deletions
diff --git a/browser/components/aboutlogins/content/components/generic-dialog.mjs b/browser/components/aboutlogins/content/components/generic-dialog.mjs
new file mode 100644
index 0000000000..8d9ddc9d36
--- /dev/null
+++ b/browser/components/aboutlogins/content/components/generic-dialog.mjs
@@ -0,0 +1,63 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import {
+  setKeyboardAccessForNonDialogElements,
+  initDialog,
+} from "../aboutLoginsUtils.mjs";
+
+export default class GenericDialog extends HTMLElement {
+  constructor() {
+    super();
+    this._promise = null;
+  }
+
+  connectedCallback() {
+    if (this.shadowRoot) {
+      return;
+    }
+    const shadowRoot = initDialog(this, "#generic-dialog-template");
+    this._dismissButton = this.querySelector(".dismiss-button");
+    this._overlay = shadowRoot.querySelector(".overlay");
+  }
+
+  handleEvent(event) {
+    switch (event.type) {
+      case "keydown":
+        if (event.key === "Escape" && !event.defaultPrevented) {
+          this.hide();
+        }
+        break;
+      case "click":
+        if (
+          event.currentTarget.classList.contains("dismiss-button") ||
+          event.target.classList.contains("overlay")
+        ) {
+          this.hide();
+        }
+    }
+  }
+
+  show() {
+    setKeyboardAccessForNonDialogElements(false);
+    this.hidden = false;
+    this.parentNode.host.hidden = false;
+
+    this._dismissButton.addEventListener("click", this);
+    this._overlay.addEventListener("click", this);
+    window.addEventListener("keydown", this);
+  }
+
+  hide() {
+    setKeyboardAccessForNonDialogElements(true);
+    this._dismissButton.removeEventListener("click", this);
+    this._overlay.removeEventListener("click", this);
+    window.removeEventListener("keydown", this);
+
+    this.hidden = true;
+    this.parentNode.host.hidden = true;
+  }
+}
+
+customElements.define("generic-dialog", GenericDialog);