| // 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. |
| |
| #ifndef CONTENT_BROWSER_LOADER_RENDER_VIEW_HOST_TRACKER_H_ |
| #define CONTENT_BROWSER_LOADER_RENDER_VIEW_HOST_TRACKER_H_ |
| |
| #include <set> |
| |
| #include "content/public/browser/render_view_host.h" |
| #include "content/public/browser/render_view_host_observer.h" |
| |
| namespace content { |
| |
| // The ResourceDispatcherHost needs to know when renderers are created and |
| // destroyed. That happens on the UI thread, but the ResourceDispatcherHost |
| // operates on the IO thread. RenderViewHostTracker listens for renderer |
| // notifications on the UI thread, then bounces them over to the IO thread so |
| // the ResourceDispatcherHost can be notified. |
| class CONTENT_EXPORT RenderViewHostTracker { |
| public: |
| RenderViewHostTracker(); |
| virtual ~RenderViewHostTracker(); |
| |
| private: |
| // TODO(phajdan.jr): Move this declaration of inner class to the .cc file. |
| class Observer : public RenderViewHostObserver { |
| public: |
| Observer(RenderViewHost* rvh, |
| RenderViewHostTracker* tracker); |
| virtual ~Observer(); |
| |
| private: |
| // RenderViewHostObserver interface: |
| virtual void RenderViewHostDestroyed(RenderViewHost* rvh) OVERRIDE; |
| |
| RenderViewHostTracker* tracker_; |
| }; |
| |
| friend class Observer; |
| typedef std::set<Observer*> ObserverSet; |
| |
| void RenderViewHostCreated(RenderViewHost* rvh); |
| |
| void RemoveObserver(Observer* observer); |
| |
| RenderViewHost::CreatedCallback rvh_created_callback_; |
| ObserverSet observers_; |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_LOADER_RENDER_VIEW_HOST_TRACKER_H_ |