forked from Mirrors/wine-wine
312 lines
8.2 KiB
C
312 lines
8.2 KiB
C
/*
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* IEnumIDList
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*
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* Copyright 1998 Juergen Schmied <juergen.schmied@metronet.de>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#define COBJMACROS
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#include "wine/debug.h"
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#include "wine/unicode.h"
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#include "windef.h"
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#include "winbase.h"
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#include "winreg.h"
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#include "shlwapi.h"
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#include "pidl.h"
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#include "shell32_main.h"
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WINE_DEFAULT_DEBUG_CHANNEL(shell);
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/**************************************************************************
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* AddToEnumList()
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*/
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BOOL AddToEnumList(IEnumIDListImpl *list, LPITEMIDLIST pidl)
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{
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struct pidl_enum_entry *pidl_entry;
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TRACE("(%p)->(pidl=%p)\n", list, pidl);
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if (!list || !pidl)
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return FALSE;
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if (!(pidl_entry = SHAlloc(sizeof(*pidl_entry))))
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return FALSE;
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pidl_entry->pidl = pidl;
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list_add_tail(&list->pidls, &pidl_entry->entry);
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if (!list->current)
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list->current = list_head(&list->pidls);
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return TRUE;
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}
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/**************************************************************************
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* CreateFolderEnumList()
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*/
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BOOL CreateFolderEnumList(IEnumIDListImpl *list, LPCWSTR lpszPath, DWORD dwFlags)
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{
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LPITEMIDLIST pidl=NULL;
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WIN32_FIND_DATAW stffile;
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HANDLE hFile;
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WCHAR szPath[MAX_PATH];
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BOOL succeeded = TRUE;
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static const WCHAR stars[] = { '*','.','*',0 };
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static const WCHAR dot[] = { '.',0 };
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static const WCHAR dotdot[] = { '.','.',0 };
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TRACE("(%p)->(path=%s flags=0x%08x)\n", list, debugstr_w(lpszPath), dwFlags);
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if(!lpszPath || !lpszPath[0]) return FALSE;
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strcpyW(szPath, lpszPath);
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PathAddBackslashW(szPath);
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strcatW(szPath,stars);
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hFile = FindFirstFileW(szPath,&stffile);
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if ( hFile != INVALID_HANDLE_VALUE )
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{
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BOOL findFinished = FALSE;
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do
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{
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if ( !(stffile.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN)
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|| (dwFlags & SHCONTF_INCLUDEHIDDEN) )
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{
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if ( (stffile.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) &&
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dwFlags & SHCONTF_FOLDERS &&
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strcmpW(stffile.cFileName, dot) && strcmpW(stffile.cFileName, dotdot))
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{
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pidl = _ILCreateFromFindDataW(&stffile);
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succeeded = succeeded && AddToEnumList(list, pidl);
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}
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else if (!(stffile.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
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&& dwFlags & SHCONTF_NONFOLDERS)
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{
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pidl = _ILCreateFromFindDataW(&stffile);
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succeeded = succeeded && AddToEnumList(list, pidl);
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}
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}
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if (succeeded)
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{
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if (!FindNextFileW(hFile, &stffile))
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{
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if (GetLastError() == ERROR_NO_MORE_FILES)
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findFinished = TRUE;
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else
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succeeded = FALSE;
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}
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}
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} while (succeeded && !findFinished);
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FindClose(hFile);
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}
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return succeeded;
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}
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static inline IEnumIDListImpl *impl_from_IEnumIDList(IEnumIDList *iface)
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{
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return CONTAINING_RECORD(iface, IEnumIDListImpl, IEnumIDList_iface);
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}
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/**************************************************************************
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* IEnumIDList::QueryInterface
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*/
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static HRESULT WINAPI IEnumIDList_fnQueryInterface(IEnumIDList *iface, REFIID riid, void **ppvObj)
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{
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IEnumIDListImpl *This = impl_from_IEnumIDList(iface);
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TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppvObj);
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*ppvObj = NULL;
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if (IsEqualIID(riid, &IID_IUnknown) ||
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IsEqualIID(riid, &IID_IEnumIDList))
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{
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*ppvObj = &This->IEnumIDList_iface;
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}
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if (*ppvObj)
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{
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IUnknown_AddRef((IUnknown*)*ppvObj);
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return S_OK;
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}
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WARN("interface %s is not supported\n", debugstr_guid(riid));
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return E_NOINTERFACE;
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}
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/******************************************************************************
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* IEnumIDList::AddRef
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*/
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static ULONG WINAPI IEnumIDList_fnAddRef(IEnumIDList *iface)
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{
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IEnumIDListImpl *This = impl_from_IEnumIDList(iface);
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ULONG refCount = InterlockedIncrement(&This->ref);
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TRACE("(%p)->(%u)\n", This, refCount - 1);
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return refCount;
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}
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/******************************************************************************
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* IEnumIDList::Release
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*/
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static ULONG WINAPI IEnumIDList_fnRelease(IEnumIDList *iface)
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{
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IEnumIDListImpl *This = impl_from_IEnumIDList(iface);
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ULONG refCount = InterlockedDecrement(&This->ref);
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TRACE("(%p)->(%u)\n", This, refCount + 1);
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if (!refCount)
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{
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struct pidl_enum_entry *cur, *cur2;
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LIST_FOR_EACH_ENTRY_SAFE(cur, cur2, &This->pidls, struct pidl_enum_entry, entry)
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{
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list_remove(&cur->entry);
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SHFree(cur->pidl);
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SHFree(cur);
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}
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heap_free(This);
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}
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return refCount;
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}
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/**************************************************************************
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* IEnumIDList::Next
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*/
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static HRESULT WINAPI IEnumIDList_fnNext(IEnumIDList *iface, ULONG celt, LPITEMIDLIST *rgelt,
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ULONG *fetched)
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{
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IEnumIDListImpl *This = impl_from_IEnumIDList(iface);
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HRESULT hr = S_OK;
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ULONG i;
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TRACE("(%p)->(%d, %p, %p)\n", This, celt, rgelt, fetched);
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/* It is valid to leave pceltFetched NULL when celt is 1. Some of explorer's
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* subsystems actually use it (and so may a third party browser)
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*/
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if (fetched)
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*fetched = 0;
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*rgelt = NULL;
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if (celt > 1 && !fetched)
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return E_INVALIDARG;
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if (celt > 0 && !This->current)
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return S_FALSE;
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for (i = 0; i < celt; i++)
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{
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if (!This->current)
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break;
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rgelt[i] = ILClone(LIST_ENTRY(This->current, struct pidl_enum_entry, entry)->pidl);
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This->current = list_next(&This->pidls, This->current);
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}
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if (fetched)
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*fetched = i;
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return hr;
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}
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/**************************************************************************
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* IEnumIDList::Skip
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*/
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static HRESULT WINAPI IEnumIDList_fnSkip(IEnumIDList *iface, ULONG celt)
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{
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IEnumIDListImpl *This = impl_from_IEnumIDList(iface);
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HRESULT hr = S_OK;
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ULONG i;
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TRACE("(%p)->(%u)\n", This, celt);
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for (i = 0; i < celt; i++)
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{
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if (!This->current)
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{
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hr = S_FALSE;
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break;
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}
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This->current = list_next(&This->pidls, This->current);
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}
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return hr;
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}
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/**************************************************************************
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* IEnumIDList::Reset
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*/
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static HRESULT WINAPI IEnumIDList_fnReset(IEnumIDList *iface)
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{
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IEnumIDListImpl *This = impl_from_IEnumIDList(iface);
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TRACE("(%p)\n",This);
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This->current = list_head(&This->pidls);
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return S_OK;
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}
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/**************************************************************************
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* IEnumIDList::Clone
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*/
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static HRESULT WINAPI IEnumIDList_fnClone(IEnumIDList *iface, IEnumIDList **ppenum)
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{
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IEnumIDListImpl *This = impl_from_IEnumIDList(iface);
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FIXME("(%p)->(%p): stub\n",This, ppenum);
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return E_NOTIMPL;
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}
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static const IEnumIDListVtbl eidlvt =
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{
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IEnumIDList_fnQueryInterface,
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IEnumIDList_fnAddRef,
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IEnumIDList_fnRelease,
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IEnumIDList_fnNext,
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IEnumIDList_fnSkip,
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IEnumIDList_fnReset,
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IEnumIDList_fnClone,
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};
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IEnumIDListImpl *IEnumIDList_Constructor(void)
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{
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IEnumIDListImpl *lpeidl = heap_alloc(sizeof(*lpeidl));
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if (lpeidl)
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{
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lpeidl->IEnumIDList_iface.lpVtbl = &eidlvt;
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lpeidl->ref = 1;
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list_init(&lpeidl->pidls);
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lpeidl->current = NULL;
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}
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TRACE("-- (%p)->()\n",lpeidl);
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return lpeidl;
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}
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