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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 CHROME_RENDERER_EXTENSIONS_EXTENSION_DISPATCHER_H_
#define CHROME_RENDERER_EXTENSIONS_EXTENSION_DISPATCHER_H_
#pragma once
#include <set>
#include <string>
#include <vector>
#include "base/shared_memory.h"
#include "base/timer.h"
#include "content/renderer/render_process_observer.h"
#include "chrome/common/extensions/extension_set.h"
class GURL;
class ListValue;
class RenderThread;
class URLPattern;
class UserScriptSlave;
struct ExtensionMsg_Loaded_Params;
namespace WebKit {
class WebFrame;
}
namespace v8 {
class Extension;
}
// Dispatches extension control messages sent to the renderer and stores
// renderer extension related state.
class ExtensionDispatcher : public RenderProcessObserver {
public:
ExtensionDispatcher();
virtual ~ExtensionDispatcher();
const std::set<std::string>& function_names() const {
return function_names_;
}
bool is_extension_process() const { return is_extension_process_; }
const ExtensionSet* extensions() const { return &extensions_; }
UserScriptSlave* user_script_slave() { return user_script_slave_.get(); }
bool IsExtensionActive(const std::string& extension_id);
// See WebKit::WebPermissionClient::allowScriptExtension
bool AllowScriptExtension(WebKit::WebFrame* frame,
const std::string& v8_extension_name,
int extension_group);
private:
friend class RenderViewTest;
// RenderProcessObserver implementation:
virtual bool OnControlMessageReceived(const IPC::Message& message);
virtual void WebKitInitialized();
virtual void IdleNotification();
void OnMessageInvoke(const std::string& extension_id,
const std::string& function_name,
const ListValue& args,
const GURL& event_url);
void OnSetFunctionNames(const std::vector<std::string>& names);
void OnLoaded(const ExtensionMsg_Loaded_Params& params);
void OnUnloaded(const std::string& id);
void OnSetScriptingWhitelist(
const Extension::ScriptingWhitelist& extension_ids);
void OnPageActionsUpdated(const std::string& extension_id,
const std::vector<std::string>& page_actions);
void OnActivateExtension(const std::string& extension_id);
void OnUpdateUserScripts(base::SharedMemoryHandle table);
// Update the list of active extensions that will be reported when we crash.
void UpdateActiveExtensions();
// Calls RenderThread's RegisterExtension and keeps tracks of which v8
// extension is for Chrome Extensions only.
void RegisterExtension(v8::Extension* extension, bool restrict_to_extensions);
// Sets the host permissions for a particular extension.
void SetHostPermissions(const GURL& extension_url,
const std::vector<URLPattern>& permissions);
// True if this renderer is running extensions.
bool is_extension_process_;
// Contains all loaded extensions. This is essentially the renderer
// counterpart to ExtensionService in the browser. It contains information
// about all extensions currently loaded by the browser.
ExtensionSet extensions_;
scoped_ptr<UserScriptSlave> user_script_slave_;
// Same as above, but on a longer timer and will run even if the process is
// not idle, to ensure that IdleHandle gets called eventually.
base::RepeatingTimer<RenderThread> forced_idle_timer_;
// The v8 extensions which are restricted to extension-related contexts.
std::set<std::string> restricted_v8_extensions_;
// All declared function names from extension_api.json.
std::set<std::string> function_names_;
// The extensions that are active in this process.
std::set<std::string> active_extension_ids_;
DISALLOW_COPY_AND_ASSIGN(ExtensionDispatcher);
};
#endif // CHROME_RENDERER_EXTENSIONS_EXTENSION_DISPATCHER_H_
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