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119 lines
3.0 KiB
119 lines
3.0 KiB
//---------------------------------------------------------------------------
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//
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// Copyright (c) Microsoft Corporation
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//
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// File: pubenum.cpp
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//
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// The current order of enumeration is Legacy --> Darwin --> SMS
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//
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// History:
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// 1-18-97 by dli
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//------------------------------------------------------------------------
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#include "priv.h"
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#include "pubenum.h"
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void _DestroyHdpaEnum(HDPA hdpaEnum)
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{
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ASSERT(IsValidHDPA(hdpaEnum));
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IEnumPublishedApps * pepa;
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int idpa;
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for (idpa = 0; idpa < DPA_GetPtrCount(hdpaEnum); idpa++)
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{
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pepa = (IEnumPublishedApps *)DPA_GetPtr(hdpaEnum, idpa);
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if (EVAL(pepa))
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pepa->Release();
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}
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DPA_Destroy(hdpaEnum);
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}
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CShellEnumPublishedApps::CShellEnumPublishedApps(HDPA hdpaEnum) : _cRef(1), _hdpaEnum(hdpaEnum)
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{
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}
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CShellEnumPublishedApps::~CShellEnumPublishedApps()
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{
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if (_hdpaEnum)
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_DestroyHdpaEnum(_hdpaEnum);
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}
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// IEnumPublishedApps::QueryInterface
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HRESULT CShellEnumPublishedApps::QueryInterface(REFIID riid, LPVOID * ppvOut)
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{
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static const QITAB qit[] = {
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QITABENT(CShellEnumPublishedApps, IEnumPublishedApps), // IID_IEnumPublishedApps
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{ 0 },
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};
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return QISearch(this, qit, riid, ppvOut);
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}
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// IEnumPublishedApps::AddRef
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ULONG CShellEnumPublishedApps::AddRef()
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{
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_cRef++;
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TraceMsg(TF_OBJLIFE, "CShellEnumPublishedApps()::AddRef called, new _cRef=%lX", _cRef);
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return _cRef;
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}
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// IEnumPublishedApps::Release
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ULONG CShellEnumPublishedApps::Release()
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{
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_cRef--;
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TraceMsg(TF_OBJLIFE, "CShellEnumPublishedApps()::Release called, new _cRef=%lX", _cRef);
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if (_cRef > 0)
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return _cRef;
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delete this;
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return 0;
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}
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// IEnumPublishedApps::Next
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HRESULT CShellEnumPublishedApps::Next(IPublishedApp ** ppia)
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{
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HRESULT hres = E_FAIL;
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if (_hdpaEnum)
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{
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IEnumPublishedApps * pepa = (IEnumPublishedApps *)DPA_GetPtr(_hdpaEnum, _iEnum);
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//
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// If pepa is not valid or pepa->Next failed, or at the end of the current enumerator,
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// we skip this Enumerator, and go on to the next one until we hit the limit
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while ((!pepa || S_OK != (hres = pepa->Next(ppia))) && (_iEnum < DPA_GetPtrCount(_hdpaEnum)))
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{
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_iEnum++;
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pepa = (IEnumPublishedApps *)DPA_GetPtr(_hdpaEnum, _iEnum);
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}
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}
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return hres;
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}
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// IEnumPublishedApps::Reset
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HRESULT CShellEnumPublishedApps::Reset(void)
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{
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// Call reset on everyone in the list and set our index iEnum to 0;
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if (_hdpaEnum)
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{
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IEnumPublishedApps * pepa;
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int idpa;
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for (idpa = 0; idpa < DPA_GetPtrCount(_hdpaEnum); idpa++)
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{
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pepa = (IEnumPublishedApps *)DPA_GetPtr(_hdpaEnum, idpa);
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if (pepa)
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pepa->Reset();
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}
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_iEnum = 0;
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return S_OK;
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}
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return E_FAIL;
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}
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