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// Copyright (c) 2012 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_SCRIPT_EXECUTOR_H_
#define CHROME_BROWSER_EXTENSIONS_SCRIPT_EXECUTOR_H_
#pragma once
#include <string>
#include "base/callback_forward.h"
#include "chrome/common/extensions/user_script.h"
namespace content {
class WebContents;
}
namespace extensions {
// Interface for executing extension content scripts (e.g. executeScript) as
// described by the ExtensionMsg_ExecuteCode_Params IPC, and notifying the
// caller when responded with ExtensionHostMsg_ExecuteCodeFinished.
class ScriptExecutor {
public:
virtual ~ScriptExecutor() {}
// The type of script being injected.
enum ScriptType {
JAVASCRIPT,
CSS,
};
// The scope of the script injection across the frames.
enum FrameScope {
TOP_FRAME,
ALL_FRAMES,
};
// The type of world to inject into (main world, or its own isolated world).
enum WorldType {
MAIN_WORLD,
ISOLATED_WORLD,
};
// Callback from ExecuteScript. The arguments are (success, page_id, error).
// page_id is only valid on success, error is only valid on !success.
typedef base::Callback<void(bool, int32, const std::string&)>
ExecuteScriptCallback;
// Executes a script. The arguments match ExtensionMsg_ExecuteCode_Params in
// extension_messages.h (request_id is populated automatically).
//
// |callback| will always be called even if the IPC'd renderer is destroyed
// before a response is received (in this case the callback will be with a
// failure and appropriate error message).
virtual void ExecuteScript(const std::string& extension_id,
ScriptType script_type,
const std::string& code,
FrameScope frame_scope,
UserScript::RunLocation run_at,
WorldType world_type,
const ExecuteScriptCallback& callback) = 0;
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_SCRIPT_EXECUTOR_H_
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