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// Copyright 2014 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 EXTENSIONS_BROWSER_EXTENSION_RENDER_MESSAGE_FILTER_H_
#define EXTENSIONS_BROWSER_EXTENSION_RENDER_MESSAGE_FILTER_H_
#include <string>
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "content/public/browser/browser_message_filter.h"
namespace base {
class DictionaryValue;
}
namespace content {
class BrowserContext;
}
namespace extensions {
// This class filters out incoming extension-specific IPC messages from the
// renderer process. It is created on the UI thread. Messages may be handled on
// the IO thread or the UI thread.
class ExtensionMessageFilter : public content::BrowserMessageFilter {
public:
ExtensionMessageFilter(int render_process_id,
content::BrowserContext* context);
private:
virtual ~ExtensionMessageFilter();
// content::BrowserMessageFilter implementation.
virtual void OverrideThreadForMessage(
const IPC::Message& message,
content::BrowserThread::ID* thread) OVERRIDE;
virtual bool OnMessageReceived(const IPC::Message& message,
bool* message_was_ok) OVERRIDE;
// Message handlers on the UI thread.
void OnExtensionAddListener(const std::string& extension_id,
const std::string& event_name);
void OnExtensionRemoveListener(const std::string& extension_id,
const std::string& event_name);
void OnExtensionAddLazyListener(const std::string& extension_id,
const std::string& event_name);
void OnExtensionRemoveLazyListener(const std::string& extension_id,
const std::string& event_name);
void OnExtensionAddFilteredListener(const std::string& extension_id,
const std::string& event_name,
const base::DictionaryValue& filter,
bool lazy);
void OnExtensionRemoveFilteredListener(const std::string& extension_id,
const std::string& event_name,
const base::DictionaryValue& filter,
bool lazy);
void OnExtensionShouldSuspendAck(const std::string& extension_id,
int sequence_id);
void OnExtensionSuspendAck(const std::string& extension_id);
// Message handlers on the IO thread.
void OnExtensionGenerateUniqueID(int* unique_id);
void OnExtensionResumeRequests(int route_id);
const int render_process_id_;
// Should only be accessed on the UI thread.
content::BrowserContext* browser_context_;
DISALLOW_COPY_AND_ASSIGN(ExtensionMessageFilter);
};
} // namespace extensions
#endif // EXTENSIONS_BROWSER_EXTENSION_RENDER_MESSAGE_FILTER_H_
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