winamp/Src/Winamp/JSAPI_ObjectArray.cpp

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2024-09-24 12:54:57 +00:00
#include "JSAPI_ObjectArray.h"
#include "JSAPI.h"
#include <strsafe.h>
JSAPI::ObjectArray::ObjectArray()
{
refCount = 1;
}
JSAPI::ObjectArray::~ObjectArray()
{
for ( IDispatch *l_object : objects )
l_object->Release();
}
enum
{
OBJ_ARRAY_DISP_LENGTH,
OBJ_ARRAY_NUM_DISP,
};
HRESULT JSAPI::ObjectArray::GetIDsOfNames(REFIID riid, OLECHAR FAR* FAR* rgszNames, unsigned int cNames, LCID lcid, DISPID FAR* rgdispid)
{
bool unknowns = false;
for (unsigned int i = 0;i != cNames;i++)
{
rgdispid[i] = DISPID_UNKNOWN;
if (!wcscmp(rgszNames[i], L"length"))
rgdispid[i]=OBJ_ARRAY_DISP_LENGTH;
else
{
if (rgszNames[i][0] >= L'0' && rgszNames[i][0] <= L'9')
rgdispid[i]=_wtoi(rgszNames[i]) + OBJ_ARRAY_NUM_DISP;
else
unknowns=true;
}
}
if (unknowns)
return DISP_E_UNKNOWNNAME;
else
return S_OK;
}
HRESULT JSAPI::ObjectArray::Invoke(DISPID dispid, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS FAR *pdispparams, VARIANT FAR *pvarResult, EXCEPINFO FAR * pexecinfo, unsigned int FAR *puArgErr)
{
JSAPI_VERIFY_PARAMCOUNT(pdispparams, 0);
switch(dispid)
{
case OBJ_ARRAY_DISP_LENGTH:
{
JSAPI_INIT_RESULT(pvarResult, VT_I4);
JSAPI_SET_RESULT(pvarResult, lVal, (LONG)objects.size());
return S_OK;
}
default:
{
if (dispid < OBJ_ARRAY_NUM_DISP)
return DISP_E_MEMBERNOTFOUND;
size_t index = (size_t)dispid - OBJ_ARRAY_NUM_DISP;
if (index>=objects.size())
return DISP_E_MEMBERNOTFOUND;
objects[index]->AddRef();
JSAPI_INIT_RESULT(pvarResult, VT_DISPATCH);
JSAPI_SET_RESULT(pvarResult, pdispVal, objects[index]);
return S_OK;
}
}
}
HRESULT JSAPI::ObjectArray::GetTypeInfo(unsigned int itinfo, LCID lcid, ITypeInfo FAR* FAR* pptinfo)
{
return E_NOTIMPL;
}
HRESULT JSAPI::ObjectArray::GetTypeInfoCount(unsigned int FAR * pctinfo)
{
return E_NOTIMPL;
}
STDMETHODIMP JSAPI::ObjectArray::QueryInterface(REFIID riid, PVOID *ppvObject)
{
if (!ppvObject)
return E_POINTER;
else if (IsEqualIID(riid, IID_IDispatch))
*ppvObject = (IDispatch *)this;
else if (IsEqualIID(riid, IID_IUnknown))
*ppvObject = this;
else if (IsEqualIID(riid, IID_IDispatchEx))
*ppvObject = (IDispatchEx *)this;
else
{
*ppvObject = NULL;
return E_NOINTERFACE;
}
AddRef();
return S_OK;
}
ULONG JSAPI::ObjectArray::AddRef(void)
{
return InterlockedIncrement(&refCount);
}
ULONG JSAPI::ObjectArray::Release(void)
{
LONG lRef = InterlockedDecrement(&refCount);
if (lRef == 0) delete this;
return lRef;
}
void JSAPI::ObjectArray::AddObject(IDispatch *obj)
{
obj->AddRef();
objects.push_back(obj);
}
HRESULT JSAPI::ObjectArray::GetDispID(BSTR bstrName, DWORD grfdex, DISPID *pid)
{
if (!wcscmp(bstrName, L"length"))
*pid=OBJ_ARRAY_DISP_LENGTH;
else
{
if (bstrName[0] >= L'0' && bstrName[0] <= L'9')
*pid=_wtoi(bstrName) + OBJ_ARRAY_NUM_DISP;
else
return DISP_E_MEMBERNOTFOUND;
}
return S_OK;
}
HRESULT JSAPI::ObjectArray::InvokeEx(
/* [in] */ DISPID id,
/* [in] */ LCID lcid,
/* [in] */ WORD wFlags,
/* [in] */ DISPPARAMS *pdp,
/* [out] */ VARIANT *pvarRes,
/* [out] */ EXCEPINFO *pei,
/* [unique][in] */ IServiceProvider *pspCaller)
{
JSAPI_VERIFY_PARAMCOUNT(pdp, 0);
switch(id)
{
case OBJ_ARRAY_DISP_LENGTH:
{
JSAPI_INIT_RESULT(pvarRes, VT_I4);
JSAPI_SET_RESULT(pvarRes, lVal, (LONG)objects.size());
return S_OK;
}
default:
{
if (id < OBJ_ARRAY_NUM_DISP)
return DISP_E_MEMBERNOTFOUND;
size_t index = (size_t)id - OBJ_ARRAY_NUM_DISP;
if (index>=objects.size())
return DISP_E_MEMBERNOTFOUND;
objects[index]->AddRef();
JSAPI_INIT_RESULT(pvarRes, VT_DISPATCH);
JSAPI_SET_RESULT(pvarRes, pdispVal, objects[index]);
return S_OK;
}
}
}
HRESULT JSAPI::ObjectArray::DeleteMemberByName(
/* [in] */ BSTR bstrName,
/* [in] */ DWORD grfdex)
{
return E_NOTIMPL;
}
HRESULT JSAPI::ObjectArray::DeleteMemberByDispID(
/* [in] */ DISPID id)
{
return E_NOTIMPL;
}
HRESULT JSAPI::ObjectArray::GetMemberProperties(
/* [in] */ DISPID id,
/* [in] */ DWORD grfdexFetch,
/* [out] */ DWORD *pgrfdex)
{
return E_NOTIMPL;
}
HRESULT JSAPI::ObjectArray::GetMemberName(
/* [in] */ DISPID id,
/* [out] */ BSTR *pbstrName)
{
if (id >= OBJ_ARRAY_NUM_DISP)
{
wchar_t temp[64] = {0};
StringCbPrintfW(temp, sizeof(temp), L"%d", id-OBJ_ARRAY_NUM_DISP);
*pbstrName = SysAllocString(temp);
return S_OK;
}
return E_NOTIMPL;
}
HRESULT JSAPI::ObjectArray::GetNextDispID(
/* [in] */ DWORD grfdex,
/* [in] */ DISPID id,
/* [out] */ DISPID *pid)
{
if (grfdex == fdexEnumDefault)
{
if (id == DISPID_UNKNOWN)
{
if (objects.empty())
return S_FALSE;
else
{
*pid = OBJ_ARRAY_NUM_DISP;
return S_OK;
}
}
else if (id < OBJ_ARRAY_NUM_DISP)
{
return S_FALSE;
}
else
{
size_t index = (id - OBJ_ARRAY_NUM_DISP) + 1;
if (index >= objects.size())
{
return S_FALSE;
}
else
{
*pid = OBJ_ARRAY_NUM_DISP + (LONG)index;
return S_OK;
}
}
}
return E_NOTIMPL;
}
HRESULT JSAPI::ObjectArray::GetNameSpaceParent(
/* [out] */ IUnknown **ppunk)
{
return E_NOTIMPL;
}