YiTizenNaClMessaging.h

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// © You i Labs Inc. 2000-2017. All rights reserved.
#if defined(YI_TIZEN_NACL)
#ifndef _YI_TIZEN_NACL_MESSAGING_
#define _YI_TIZEN_NACL_MESSAGING_

#include "thread/YiCountDownLatch.h"

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wfloat-equal"
#include <ppapi/cpp/instance.h>
#include <ppapi/cpp/var_dictionary.h>
#pragma GCC diagnostic pop

class CYITizenNaClMessaging
{
public:
    
    struct SynchronousResponseData
    {
        SynchronousResponseData() : latch(1) {};
        pp::Var result;
        CYICountDownLatch latch;
    };

    static CYITizenNaClMessaging *GetInstance();

    void PostMessageNoResponse(const pp::Var &message);

    pp::Var PostMessageSyncResponse(const pp::Var &message, const CYIString &key, uint32_t uTimeoutMs);

    void PostMessageAsyncResponse(const pp::Var &message, const CYIString &key, CYISignal<pp::Var> *pResponseSignal);

    bool RegisterListener(const CYIString &key, CYISignal<pp::VarDictionary> *pOnEventSignal);

    bool UnregisterListener(const CYIString &key, CYISignal<pp::VarDictionary> *pOnEventSignal);

    /* 
        \details Provides a message event to be handled. This is called when the application receives a
        PSE_INSTANCE_HANDLEMESSAGE event containing a pp::VarDictionary so that the event can be dispatched 
        to the correct listener. Returns true if the message was passed to a listener.
    */
    bool HandleMessageEvent(const pp::VarDictionary &dictionaryEvent);

    /*
        \details Creates a simple "command" dictionary. The \a key (if provided) must match the key sent to PPInstance::PostMessage.
    */
    static pp::VarDictionary CreateCommandDictionary(const CYIString &className, const CYIString &methodName, const CYIString &key = CYIString::EMPTY_STRING);

    /*
        \details Creates a simple "command" dictionary. The \a key (if provided) must match the key sent to PPInstance::PostMessage.
        The \a method dictionary should be complete with a "name" entry and any other parameters needed by the target method.
    */
    static pp::VarDictionary CreateCommandDictionary(const CYIString &className, const pp::VarDictionary &method, const CYIString &key = CYIString::EMPTY_STRING);
private: 
    struct TizenEvent
    {
        CYIString key;
        CYISignal<pp::VarDictionary> *pOnEventSignal;

        TizenEvent(const CYIString &key, CYISignal<pp::VarDictionary> *pOnEventSignal)
        : key(key)
        , pOnEventSignal(pOnEventSignal)
        {
        };
    };

    CYITizenNaClMessaging();

    CYIMutex m_listenersMutex;
    std::vector<TizenEvent> m_registeredListeners;
    pp::Instance m_PPInstance;
};


#endif // _YI_TIZEN_NACL_MESSAGING_
#endif // YI_TIZEN_NACL