File: WebUserContentControllerProxy.h

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/*
 * Copyright (C) 2014 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef WebUserContentControllerProxy_h
#define WebUserContentControllerProxy_h

#include "MessageReceiver.h"
#include <wtf/Forward.h>
#include <wtf/HashMap.h>
#include <wtf/HashSet.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/Vector.h>

namespace IPC {
class DataReference;
}

namespace WebCore {
class UserScript;
class UserStyleSheet;
}

namespace WebKit {

class WebProcessProxy;
class WebScriptMessageHandler;

class WebUserContentControllerProxy : public RefCounted<WebUserContentControllerProxy>, private IPC::MessageReceiver {
public:
    static PassRefPtr<WebUserContentControllerProxy> create();
    ~WebUserContentControllerProxy();

    uint64_t identifier() const { return m_identifier; }

    void addProcess(WebProcessProxy&);
    void removeProcess(WebProcessProxy&);

    void addUserScript(WebCore::UserScript);
    void removeAllUserScripts();

    void addUserStyleSheet(WebCore::UserStyleSheet);
    void removeAllUserStyleSheets();

    // Returns false if there was a name conflict.
    bool addUserScriptMessageHandler(WebScriptMessageHandler*);
    void removeUserMessageHandlerForName(const String&);

private:
    explicit WebUserContentControllerProxy();

    // IPC::MessageReceiver.
    virtual void didReceiveMessage(IPC::Connection*, IPC::MessageDecoder&) override;

    void didPostMessage(IPC::Connection*, uint64_t pageID, uint64_t frameID, uint64_t messageHandlerID, const IPC::DataReference&);

    uint64_t m_identifier;
    HashSet<WebProcessProxy*> m_processes;

    Vector<WebCore::UserScript> m_userScripts;
    Vector<WebCore::UserStyleSheet> m_userStyleSheets;
    HashMap<uint64_t, RefPtr<WebScriptMessageHandler>> m_scriptMessageHandlers;
};

} // namespace WebKit

#endif // WebUserContentControllerProxy_h