Identity API: Add chrome.identity.onSignInChanged routing and IDL

chrome/browser/extensions/api/identity/identity_event_router.cc

+// Copyright (c) 2013 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.
+
+#include "chrome/browser/extensions/api/identity/identity_event_router.h"
+
+#include <set>
+
+#include "base/basictypes.h"
+#include "base/stl_util.h"
+#include "base/values.h"
+#include "chrome/browser/extensions/event_router.h"
+#include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/extensions/extension_system.h"
+#include "chrome/common/extensions/api/identity.h"
+
+namespace extensions {
+
+IdentityEventRouter::IdentityEventRouter(Profile* profile)
+    : profile_(profile) {}
+
+IdentityEventRouter::~IdentityEventRouter() {}
+
+void IdentityEventRouter::DispatchSignInEvent(const std::string& id,
+                                              const std::string& email,
+                                              bool is_signed_in) {
+  extensions::ExtensionSystem* extension_system =
+      ExtensionSystem::Get(profile_);
+  const EventListenerMap::ListenerList& listeners =
+      extension_system->event_router()->listeners()
+      .GetEventListenersByName(api::identity::OnSignInChanged::kEventName);
+
+  ExtensionService* service = extension_system->extension_service();
+  EventRouter* event_router = extension_system->event_router();
+
+  scoped_ptr<std::string> info_email(new std::string(email));
+  api::identity::AccountInfo account_info;
+  account_info.id = id;
+
+  std::set<std::string> already_dispatched;
+
+  for (EventListenerMap::ListenerList::const_iterator it = listeners.begin();
+       it != listeners.end(); ++it) {
+    const std::string& extension_id = (*it)->extension_id;
+    const Extension* extension = service->extensions()->GetByID(extension_id);
+
+    if (ContainsKey(already_dispatched, extension_id))
+      continue;
+
+    already_dispatched.insert(extension_id);
+
+    // Add the email address to AccountInfo only for extensions that
+    // have APIPermission::kIdentityEmail.
+    if (extension->HasAPIPermission(APIPermission::kIdentityEmail))
+      account_info.email.reset(info_email.get());

[not at google - send to devlin, 2013/10/16 20:36:01]

seems just as valid to use &email here and not have the info_email at all.

[Michael Courage, 2013/10/16 21:18:53]

Done.

+
+    scoped_ptr<base::ListValue> args =
+        api::identity::OnSignInChanged::Create(account_info, is_signed_in);
+    scoped_ptr<Event> event(new Event(
+        api::identity::OnSignInChanged::kEventName, args.Pass(), profile_));
+    event_router->DispatchEventToExtension(extension_id, event.Pass());
+
+    ignore_result(account_info.email.release());
+  }
+}
+
+}  // namespace extensions