1 files changed, 82 insertions, 0 deletions
diff --git a/browser/components/migration/content/migration-dialog-window.js b/browser/components/migration/content/migration-dialog-window.js
new file mode 100644
index 0000000000..feaa70f565
--- /dev/null
+++ b/browser/components/migration/content/migration-dialog-window.js
@@ -0,0 +1,82 @@
+/* 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/. */
+
+"use strict";
+
+/**
+ * This file manages a MigrationWizard embedded in a dialog that runs
+ * in a top-level dialog window. It's main responsibility is to listen
+ * for dialog-specific events from the embedded MigrationWizard and to
+ * respond appropriately to them.
+ *
+ * A single object argument is expected to be passed when opening
+ * this dialog.
+ *
+ * @param {object} window.arguments.0
+ * @param {Function} window.arguments.0.onResize
+ *   A callback to resize the container of this document when the
+ *   MigrationWizard resizes.
+ * @param {object} window.arguments.0.options
+ *   A series of options for configuring the dialog. See
+ *   MigrationUtils.showMigrationWizard for a description of this
+ *   object.
+ */
+
+const MigrationDialog = {
+  _wiz: null,
+
+  init() {
+    addEventListener("load", this);
+  },
+
+  onLoad() {
+    this._wiz = document.getElementById("wizard");
+    this._wiz.addEventListener("MigrationWizard:Close", this);
+    document.addEventListener("keypress", this);
+
+    let args = window.arguments[0];
+    // When opened via nsIWindowWatcher.openWindow, the arguments are
+    // passed through C++, and they arrive to us wrapped as an XPCOM
+    // object. We use wrappedJSObject to get at the underlying JS
+    // object.
+    if (args instanceof Ci.nsISupports) {
+      args = args.wrappedJSObject;
+    }
+
+    // We have to inform the container of this document that the
+    // MigrationWizard has changed size in order for it to update
+    // its dimensions too.
+    let observer = new ResizeObserver(() => {
+      args.onResize();
+    });
+    observer.observe(this._wiz);
+
+    let panelList = this._wiz.querySelector("panel-list");
+    let panel = document.createXULElement("panel");
+    panel.appendChild(panelList);
+    this._wiz.appendChild(panel);
+    this._wiz.requestState();
+  },
+
+  handleEvent(event) {
+    switch (event.type) {
+      case "load": {
+        this.onLoad();
+        break;
+      }
+      case "keypress": {
+        if (event.keyCode == KeyEvent.DOM_VK_ESCAPE) {
+          window.close();
+        }
+        break;
+      }
+      case "MigrationWizard:Close": {
+        window.close();
+        break;
+      }
+    }
+  },
+};
+
+MigrationDialog.init();