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// Copyright (c) 2009 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_USER_SCRIPT_SLAVE_H_
#define CHROME_RENDERER_USER_SCRIPT_SLAVE_H_
#pragma once
#include <map>
#include <set>
#include <string>
#include <vector>
#include "base/scoped_ptr.h"
#include "base/shared_memory.h"
#include "base/stl_util-inl.h"
#include "base/string_piece.h"
#include "chrome/common/extensions/user_script.h"
#include "third_party/WebKit/WebKit/chromium/public/WebScriptSource.h"
namespace WebKit {
class WebFrame;
}
using WebKit::WebScriptSource;
// Manages installed UserScripts for a render process.
class UserScriptSlave {
public:
UserScriptSlave();
// Returns the unique set of extension IDs this UserScriptSlave knows about.
void GetActiveExtensions(std::set<std::string>* extension_ids);
// Update the parsed scripts from shared memory.
bool UpdateScripts(base::SharedMemoryHandle shared_memory);
// Inject the appropriate scripts into a frame based on its URL.
// TODO(aa): Extract a UserScriptFrame interface out of this to improve
// testability.
void InjectScripts(WebKit::WebFrame* frame, UserScript::RunLocation location);
static int GetIsolatedWorldId(const std::string& extension_id);
static void InsertInitExtensionCode(std::vector<WebScriptSource>* sources,
const std::string& extension_id);
private:
// Shared memory containing raw script data.
scoped_ptr<base::SharedMemory> shared_memory_;
// Parsed script data.
std::vector<UserScript*> scripts_;
STLElementDeleter<std::vector<UserScript*> > script_deleter_;
// Greasemonkey API source that is injected with the scripts.
base::StringPiece api_js_;
DISALLOW_COPY_AND_ASSIGN(UserScriptSlave);
};
#endif // CHROME_RENDERER_USER_SCRIPT_SLAVE_H_
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