Implement the webNavigation.onCommitted event.

BUG=50943
TEST=ExtensionApiTest.WebNavigationEvents

Review URL: http://codereview.chromium.org/3307013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@58802 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 85 insertions, 0 deletions

diff --git a/chrome/browser/extensions/extension_webnavigation_api.cc b/chrome/browser/extensions/extension_webnavigation_api.cc
new file mode 100644
index 0000000..4a545fd
--- /dev/null
+++ b/chrome/browser/extensions/extension_webnavigation_api.cc
@@ -0,0 +1,85 @@
+// Copyright (c) 2010 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.
+
+// Implements the Chrome Extensions WebNavigation API.
+
+#include "chrome/browser/extensions/extension_webnavigation_api.h"
+
+#include "base/json/json_writer.h"
+#include "base/time.h"
+#include "base/values.h"
+#include "chrome/browser/extensions/extension_message_service.h"
+#include "chrome/browser/extensions/extension_tabs_module.h"
+#include "chrome/browser/extensions/extension_webnavigation_api_constants.h"
+#include "chrome/browser/profile.h"
+#include "chrome/browser/tab_contents/navigation_entry.h"
+#include "chrome/common/notification_type.h"
+#include "chrome/common/notification_service.h"
+
+namespace keys = extension_webnavigation_api_constants;
+
+// static
+ExtensionWebNavigationEventRouter*
+ExtensionWebNavigationEventRouter::GetInstance() {
+  return Singleton<ExtensionWebNavigationEventRouter>::get();
+}
+
+void ExtensionWebNavigationEventRouter::Init() {
+  if (registrar_.IsEmpty()) {
+    registrar_.Add(this,
+                   NotificationType::NAV_ENTRY_COMMITTED,
+                   NotificationService::AllSources());
+  }
+}
+
+void ExtensionWebNavigationEventRouter::Observe(
+    NotificationType type,
+    const NotificationSource& source,
+    const NotificationDetails& details) {
+  switch (type.value) {
+    case NotificationType::NAV_ENTRY_COMMITTED:
+      NavEntryCommitted(
+          Source<NavigationController>(source).ptr(),
+          Details<NavigationController::LoadCommittedDetails>(details).ptr());
+      break;
+
+    default:
+      NOTREACHED();
+  }
+}
+
+void ExtensionWebNavigationEventRouter::NavEntryCommitted(
+    NavigationController* controller,
+    NavigationController::LoadCommittedDetails* details) {
+  ListValue args;
+  DictionaryValue* dict = new DictionaryValue();
+  dict->SetInteger(keys::kTabIdKey,
+                   ExtensionTabUtil::GetTabId(controller->tab_contents()));
+  dict->SetString(keys::kUrlKey,
+                  details->entry->url().spec());
+  dict->SetInteger(keys::kFrameIdKey,
+                   details->is_main_frame ? 0 : details->entry->page_id());
+  dict->SetString(keys::kTransitionTypeKey,
+                  PageTransition::CoreTransitionString(
+                      details->entry->transition_type()));
+  dict->SetString(keys::kTransitionQualifiersKey,
+                  PageTransition::QualifierString(
+                      details->entry->transition_type()));
+  dict->SetReal(keys::kTimeStampKey, base::Time::Now().ToDoubleT());
+  args.Append(dict);
+
+  std::string json_args;
+  base::JSONWriter::Write(&args, false, &json_args);
+  DispatchEvent(controller->profile(), keys::kOnCommitted, json_args);
+}
+
+void ExtensionWebNavigationEventRouter::DispatchEvent(
+    Profile* profile,
+    const char* event_name,
+    const std::string& json_args) {
+  if (profile && profile->GetExtensionMessageService()) {
+    profile->GetExtensionMessageService()->DispatchEventToRenderers(
+        event_name, json_args, profile, GURL());
+  }
+}