1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
#include "fsIapFactory.h"

#if defined(fsANDROID)
    #include "src/impl/scapix/android/fsCIAP.h"
#elif defined(IOS)
    #include "src/impl/scapix/iOS/fsCIAP.h"
#endif

namespace
{
class fsIapPlatformService : public fsIapService
{
public:
    explicit fsIapPlatformService(Observer* observer)
    {
        setObserver(observer);<--- Calling setObserver
    }

    void setObserver(Observer* observer) override<--- setObserver is a virtual function
    {
        mObserver = observer;
#if defined(fsANDROID) || defined(IOS)
        IAPImpl::initialise(mObserver);
#endif
    }

    void queryProduct(const std::string& productId) override
    {
#if defined(fsANDROID) || defined(IOS)
        IAPImpl::queryProduct(productId);
#else
        if (mObserver)
        {
            mObserver->onProductInvalid(productId);
        }
#endif
    }

    void purchaseReadyProduct() override
    {
#if defined(fsANDROID) || defined(IOS)
        IAPImpl::purchaseReadyProduct();
#endif
    }

    void restorePurchases() override
    {
#if defined(fsANDROID) || defined(IOS)
        IAPImpl::restorePurchase();
#endif
    }

    void shutdown() override
    {
#if defined(fsANDROID) || defined(IOS)
        IAPImpl::shutdown();
#endif
        mObserver = nullptr;
    }

private:
    Observer* mObserver{nullptr};
};
}

std::unique_ptr<fsIapService> fsIapServiceCreate(fsIapService::Observer* observer)
{
    return std::make_unique<fsIapPlatformService>(observer);
}