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// Copyright 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_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_
#define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_
#include "content/common/content_export.h"
namespace IPC {
class Message;
}
namespace content {
class RenderFrameHost;
class WebContents;
// An interface implemented by an object interested in knowing about the state
// of the RenderFrameHost.
class CONTENT_EXPORT RenderFrameHostDelegate {
public:
// This is used to give the delegate a chance to filter IPC messages.
virtual bool OnMessageReceived(RenderFrameHost* render_frame_host,
const IPC::Message& message);
// Informs the delegate whenever a RenderFrameHost is created.
virtual void RenderFrameCreated(RenderFrameHost* render_frame_host) {}
// Informs the delegate whenever a RenderFrameHost is deleted.
virtual void RenderFrameDeleted(RenderFrameHost* render_frame_host) {}
// Return this object cast to a WebContents, if it is one. If the object is
// not a WebContents, returns NULL.
virtual WebContents* GetAsWebContents();
protected:
virtual ~RenderFrameHostDelegate() {}
};
} // namespace content
#endif // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_
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