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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "chrome/browser/sync/glue/extensions_activity_monitor.h"
      6 
      7 #include "base/bind.h"
      8 #include "chrome/browser/chrome_notification_types.h"
      9 #include "chrome/browser/extensions/api/bookmarks/bookmarks_api.h"
     10 #include "content/public/browser/browser_thread.h"
     11 #include "content/public/browser/notification_service.h"
     12 #include "extensions/common/extension.h"
     13 #include "sync/util/extensions_activity.h"
     14 
     15 using content::BrowserThread;
     16 
     17 namespace browser_sync {
     18 
     19 ExtensionsActivityMonitor::ExtensionsActivityMonitor()
     20     : extensions_activity_(new syncer::ExtensionsActivity()) {
     21   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
     22   // It would be nice if we could specify a Source for each specific function
     23   // we wanted to observe, but the actual function objects are allocated on
     24   // the fly so there is no reliable object to point to (same problem if we
     25   // wanted to use the string name).  Thus, we use all sources and filter in
     26   // Observe.
     27   registrar_.Add(this,
     28                  chrome::NOTIFICATION_EXTENSION_BOOKMARKS_API_INVOKED,
     29                  content::NotificationService::AllSources());
     30 }
     31 
     32 ExtensionsActivityMonitor::~ExtensionsActivityMonitor() {
     33   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
     34 }
     35 
     36 void ExtensionsActivityMonitor::Observe(
     37     int type,
     38     const content::NotificationSource& source,
     39     const content::NotificationDetails& details) {
     40   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
     41   const extensions::Extension* extension =
     42       content::Source<const extensions::Extension>(source).ptr();
     43   const extensions::BookmarksFunction* f =
     44       content::Details<const extensions::BookmarksFunction>(details).ptr();
     45   if (f->name() == "bookmarks.update" ||
     46       f->name() == "bookmarks.move" ||
     47       f->name() == "bookmarks.create" ||
     48       f->name() == "bookmarks.removeTree" ||
     49       f->name() == "bookmarks.remove") {
     50     extensions_activity_->UpdateRecord(extension->id());
     51   }
     52 }
     53 
     54 const scoped_refptr<syncer::ExtensionsActivity>&
     55 ExtensionsActivityMonitor::GetExtensionsActivity() {
     56   return extensions_activity_;
     57 }
     58 
     59 }  // namespace browser_sync
     60