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#include "main.h"
#include "./browserWndEnum.h"
#include "./browserWndRecord.h"
#include "./browserView.h"
#include "./browserPopup.h"
#include "./ifc_omservice.h"
OmBrowserWndEnumerator::OmBrowserWndEnumerator(const GUID *windowTypeFilter, const UINT *serviceIdFilter, OmBrowserWndRecord * const *windowList, size_t windowListSize)
: ref(1), index(0), list(NULL), size(0), filterId(FALSE), filterType(FALSE)
{
if (NULL != serviceIdFilter)
{
serviceId = *serviceIdFilter;
filterId = TRUE;
}
else
serviceId = 0;
if (NULL != windowTypeFilter)
{
windowType = *windowTypeFilter;
filterType = TRUE;
}
else
windowType = GUID_NULL;
if (NULL != windowList && 0 != windowListSize)
{
list = (OmBrowserWndRecord**)calloc(windowListSize, sizeof(OmBrowserWndRecord*));
if (NULL != list)
{
for (size_t i = 0; i < windowListSize; i++)
{
list[i] = windowList[i];
list[i]->AddRef();
}
size = windowListSize;
}
}
}
OmBrowserWndEnumerator::~OmBrowserWndEnumerator()
{
if (NULL != list)
{
for (size_t i = 0; i < size; i++)
{
list[i]->Release();
}
free(list);
}
}
HRESULT OmBrowserWndEnumerator::CreateInstance(const GUID *windowTypeFilter, const UINT *serviceIdFilter, OmBrowserWndRecord * const* windowList, size_t windowListSize, OmBrowserWndEnumerator **instance)
{
if (NULL == instance) return E_POINTER;
*instance = new OmBrowserWndEnumerator(windowTypeFilter, serviceIdFilter, windowList, windowListSize);
if (NULL == *instance) return E_OUTOFMEMORY;
return S_OK;
}
size_t OmBrowserWndEnumerator::AddRef()
{
return InterlockedIncrement((LONG*)&ref);
}
size_t OmBrowserWndEnumerator::Release()
{
if (0 == ref)
return ref;
LONG r = InterlockedDecrement((LONG*)&ref);
if (0 == r)
delete(this);
return r;
}
int OmBrowserWndEnumerator::QueryInterface(GUID interface_guid, void **object)
{
if (NULL == object) return E_POINTER;
if (IsEqualIID(interface_guid, IFC_OmBrowserWindowEnumerator))
*object = static_cast<ifc_ombrowserwndenum*>(this);
else
{
*object = NULL;
return E_NOINTERFACE;
}
if (NULL == *object)
return E_UNEXPECTED;
AddRef();
return S_OK;
}
HRESULT OmBrowserWndEnumerator::Next(ULONG listSize, HWND *elementList, ULONG *elementCount)
{
if (NULL == elementList || 0 == listSize) return E_INVALIDARG;
if (index >= size)
{
if (NULL != elementCount) *elementCount = 0;
return S_FALSE;
}
ULONG count = 0;
for (;index < size && count < listSize; index++)
{
OmBrowserWndRecord *r = list[index];
if (FALSE != filterType)
{
if (S_OK != r->IsEqualType(&windowType))
continue;
}
if (FALSE != filterId)
{
BOOL passOk = FALSE;
if (S_OK == r->IsEqualType(&WTID_BrowserView) ||
S_OK == r->IsEqualType(&WTID_BrowserPopup))
{
ifc_omservice *service;
if (FALSE != SendMessage(r->GetHwnd(), NBCM_GETSERVICE, 0, (LPARAM)&service) && NULL != service)
{
if (serviceId == service->GetId())
passOk = TRUE;
service->Release();
}
}
if (FALSE == passOk)
continue;
}
elementList[count] = r->GetHwnd();
count++;
}
if (NULL != elementCount) *elementCount = count;
return (count == listSize) ? S_OK : S_FALSE;
}
HRESULT OmBrowserWndEnumerator::Reset(void)
{
index = 0;
return S_OK;
}
HRESULT OmBrowserWndEnumerator::Skip(ULONG elementCount)
{
index += elementCount;
if (index >= size)
{
index = (size - 1);
return S_FALSE;
}
return S_OK;
}
#define CBCLASS OmBrowserWndEnumerator
START_DISPATCH;
CB(ADDREF, AddRef)
CB(RELEASE, Release)
CB(QUERYINTERFACE, QueryInterface)
CB(API_NEXT, Next)
CB(API_RESET, Reset)
CB(API_SKIP, Skip)
END_DISPATCH;
#undef CBCLASS
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