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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_BROWSER_SYNC_JS_FRONTEND_H_
#define CHROME_BROWSER_SYNC_JS_FRONTEND_H_
#pragma once
// See README.js for design comments.
#include <string>
namespace browser_sync {
class JsArgList;
class JsEventHandler;
// An interface for objects that interact directly with
// JsEventHandlers.
class JsFrontend {
public:
// Adds a handler which will start receiving JS events (not
// immediately, so this can be called in the handler's constructor).
// A handler must be added at most once.
virtual void AddHandler(JsEventHandler* handler) = 0;
// Removes the given handler if it has been added. It will
// immediately stop receiving any JS events.
virtual void RemoveHandler(JsEventHandler* handler) = 0;
// Sends a JS message. The reply (if any) will be sent to |sender|
// if it has been added.
virtual void ProcessMessage(
const std::string& name, const JsArgList& args,
const JsEventHandler* sender) = 0;
protected:
virtual ~JsFrontend() {}
};
} // namespace browser_sync
#endif // CHROME_BROWSER_SYNC_JS_FRONTEND_H_
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