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// Copyright (c) 2011 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_RENDERER_JAVA_BRIDGE_DISPATCHER_HOST_MANAGER_H_
#define CONTENT_BROWSER_RENDERER_JAVA_BRIDGE_DISPATCHER_HOST_MANAGER_H_
#pragma once
#include <map>
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/string16.h"
#include "content/browser/tab_contents/tab_contents_observer.h"
class JavaBridgeDispatcherHost;
class RenderViewHost;
struct NPObject;
// This class handles injecting Java objects into all of the RenderViews
// associated with a TabContents. It manages a set of JavaBridgeDispatcherHost
// objects, one per RenderViewHost.
class JavaBridgeDispatcherHostManager : public TabContentsObserver {
public:
JavaBridgeDispatcherHostManager(TabContents* tab_contents);
virtual ~JavaBridgeDispatcherHostManager();
// These methods add or remove the object to each JavaBridgeDispatcherHost.
// Each one holds a reference to the NPObject while the object is bound to
// the corresponding RenderView. See JavaBridgeDispatcherHost for details.
void AddNamedObject(const string16& name, NPObject* object);
void RemoveNamedObject(const string16& name);
// TabContentsObserver overrides
virtual void RenderViewCreated(RenderViewHost* render_view_host) OVERRIDE;
virtual void RenderViewDeleted(RenderViewHost* render_view_host) OVERRIDE;
virtual void TabContentsDestroyed(TabContents* tab_contents) OVERRIDE;
private:
typedef std::map<RenderViewHost*, scoped_refptr<JavaBridgeDispatcherHost> >
InstanceMap;
InstanceMap instances_;
typedef std::map<string16, NPObject*> ObjectMap;
ObjectMap objects_;
DISALLOW_COPY_AND_ASSIGN(JavaBridgeDispatcherHostManager);
};
#endif // CONTENT_BROWSER_RENDERER_JAVA_BRIDGE_DISPATCHER_HOST_MANAGER_H_
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