Improve HRD first run experience

remoting/webapp/crd/js/hangout_consent_dialog.js

Index: remoting/webapp/crd/js/hangout_consent_dialog.js
diff --git a/remoting/webapp/crd/js/hangout_consent_dialog.js b/remoting/webapp/crd/js/hangout_consent_dialog.js
new file mode 100644
index 0000000000000000000000000000000000000000..87f8807ca6563b5f746feacd7b891574ab033096
--- /dev/null
+++ b/remoting/webapp/crd/js/hangout_consent_dialog.js
@@ -0,0 +1,106 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/** @suppress {duplicate} */
+var remoting = remoting || {};
+
+(function() {
+
+'use strict';
+
+var instance_ = null;
+
+/**
+ * Shows a dialog to ask for the user's permission to accept remote assistance
+ * from a Hangout participant.
+ *
+ * @constructor
+ * @private
+ */
+remoting.HangoutConsentDialog = function() {
+  /**
+   * @type {base.Deferred}
+   * @private
+   */
+  this.onConsentResponseDeferred_ = null;
+
+  /** @private */
+  this.requestToken_ = base.generateXsrfToken();
+
+  base.Ipc.getInstance().register('remoting.HangoutConsentDialog.confirm',
+                                  this.onConfirmResponse_.bind(this));
+};
+
+/**
+ * @param {boolean} confirm Whether the user authorized the it2me connection
+ * @param {string} responseToken
+ * @private
+ */
+remoting.HangoutConsentDialog.prototype.onConfirmResponse_ = function(
+    confirm, responseToken) {
+  if (responseToken !== this.requestToken_) {
+    return;
+  }
+
+  if (confirm) {
+    this.onConsentResponseDeferred_.resolve();
+  } else {
+    this.onConsentResponseDeferred_.reject(
+        new Error(remoting.Error.CANCELLED));
+  }
+  this.onConsentResponseDeferred_ = null;
+};
+
+/**
+ * @param {boolean} authorized If true, the consent dialog will hide the
+ *  authorization section.
+ * @param {Bounds=} opt_parentBounds If present, the consent dialog will be
+ *  centered within |opt_parentBounds|.
+ * @return {Promise} A Promise that will resolve when permission is granted or
+ *   reject if the user cancels.
+ */
+remoting.HangoutConsentDialog.prototype.show = function(authorized,
+                                                        opt_parentBounds) {
+  if (!this.onConsentResponseDeferred_) {
+    var DIALOG_WIDTH = 750;
+    var DIALOG_HEIGHT = 480;
+
+    var createOptions = {
+      frame: 'none',
+      resizable: false,
+      outerBounds: { width: DIALOG_WIDTH, height: DIALOG_HEIGHT }
+    };
+
+    var params = {
+      token: this.requestToken_,
+      authorized: Boolean(authorized)
+    };
+
+    var url = base.urlJoin('dialog_hangout_consent.html', params);
+
+    if (opt_parentBounds) {
+      // Center the dialog on the parent bounds.
+      var rect = opt_parentBounds;
+      createOptions.outerBounds.top =
+          Math.round(rect.top + rect.height / 2 - DIALOG_HEIGHT / 2);
+      createOptions.outerBounds.left =
+          Math.round(rect.left + rect.width / 2 - DIALOG_WIDTH / 2);
+    }
+
+    this.onConsentResponseDeferred_ = new base.Deferred();
+    chrome.app.window.create(url, createOptions);
+  }
+  return this.onConsentResponseDeferred_.promise();
+};
+
+/** @return {remoting.HangoutConsentDialog} */
+remoting.HangoutConsentDialog.getInstance = function() {
+  if (!instance_) {
+    instance_ = new remoting.HangoutConsentDialog();
+  }
+  return instance_;
+};
+
+}());
+