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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_BROWSER_EXTENSIONS_USER_SCRIPT_SLAVE_H_
#define CHROME_BROWSER_EXTENSIONS_USER_SCRIPT_SLAVE_H_
#include <map>
#include <vector>
#include "base/scoped_ptr.h"
#include "base/shared_memory.h"
#include "base/string_piece.h"
#include "chrome/common/extensions/user_script.h"
#include "chrome/common/stl_util-inl.h"
class WebFrame;
// Manages installed UserScripts for a render process.
class UserScriptSlave {
public:
UserScriptSlave();
// 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.
bool InjectScripts(WebFrame* frame, UserScript::RunLocation location);
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.
StringPiece api_js_;
// The line number of the first line of the user script among all of the
// injected javascript. This is used to make reported errors correspond with
// the proper line in the user script.
int user_script_start_line_;
DISALLOW_COPY_AND_ASSIGN(UserScriptSlave);
};
#endif // CHROME_BROWSER_EXTENSIONS_USER_SCRIPT_SLAVE_H_
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