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https://github.com/reactos/reactos.git
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109 lines
2.6 KiB
C++
109 lines
2.6 KiB
C++
/*
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* PROJECT: ReactOS Zip Shell Extension
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* LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
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* PURPOSE: CEnumZipContents
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* COPYRIGHT: Copyright 2017 Mark Jansen (mark.jansen@reactos.org)
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* Copyright 2023 Katayama Hirofumi MZ (katayama.hirofumi.mz@gmail.com)
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*/
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#include "precomp.h"
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class CEnumZipContents :
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public CComObjectRootEx<CComMultiThreadModelNoCS>,
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public IEnumIDList
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{
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private:
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CZipEnumerator mEnumerator;
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DWORD dwFlags;
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CStringW m_Prefix;
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public:
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CEnumZipContents()
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:dwFlags(0)
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{
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}
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STDMETHODIMP Initialize(IZip* zip, DWORD flags, PCWSTR prefix)
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{
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dwFlags = flags;
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m_Prefix = prefix;
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if (mEnumerator.initialize(zip))
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return S_OK;
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return E_FAIL;
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}
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// *** IEnumIDList methods ***
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STDMETHODIMP Next(ULONG celt, LPITEMIDLIST *rgelt, ULONG *pceltFetched)
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{
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if (!rgelt || (!pceltFetched && celt != 1))
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return E_POINTER;
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HRESULT hr = S_OK;
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ULONG fetched = 0;
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LPITEMIDLIST item;
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CStringW name;
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bool dir;
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unz_file_info64 info;
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while (fetched < celt)
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{
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if (mEnumerator.next_unique(m_Prefix, name, dir, info))
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{
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item = _ILCreate(dir ? ZIP_PIDL_DIRECTORY : ZIP_PIDL_FILE, name, info);
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if (!item)
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{
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hr = fetched ? S_FALSE : E_OUTOFMEMORY;
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break;
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}
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rgelt[fetched++] = item;
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}
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else
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{
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hr = S_FALSE;
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break;
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}
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}
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if (pceltFetched)
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*pceltFetched = fetched;
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return hr;
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}
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STDMETHODIMP Skip(ULONG celt)
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{
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CStringW name;
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bool dir;
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unz_file_info64 info;
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while (celt--)
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{
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if (!mEnumerator.next_unique(m_Prefix, name, dir, info))
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return E_FAIL;
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;
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}
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return S_OK;
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}
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STDMETHODIMP Reset()
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{
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if (mEnumerator.reset())
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return S_OK;
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return E_FAIL;
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}
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STDMETHODIMP Clone(IEnumIDList **ppenum)
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{
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return E_NOTIMPL;
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}
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public:
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DECLARE_NOT_AGGREGATABLE(CEnumZipContents)
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DECLARE_PROTECT_FINAL_CONSTRUCT()
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BEGIN_COM_MAP(CEnumZipContents)
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COM_INTERFACE_ENTRY_IID(IID_IEnumIDList, IEnumIDList)
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END_COM_MAP()
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};
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HRESULT _CEnumZipContents_CreateInstance(IZip* zip, DWORD flags, PCWSTR prefix, REFIID riid, LPVOID * ppvOut)
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{
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return ShellObjectCreatorInit<CEnumZipContents>(zip, flags, prefix, riid, ppvOut);
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}
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