378 lines
11 KiB
C
378 lines
11 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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#include <stdlib.h>
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#include <string.h>
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#include "debug.h"
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#include "objbase.h"
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#include "winerror.h"
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#include "pidl.h"
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#include "shlguid.h"
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#include "shlobj.h"
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#include "shell32_main.h"
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/* IEnumIDList Implementation */
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static HRESULT WINAPI IEnumIDList_QueryInterface(LPENUMIDLIST,REFIID,LPVOID*);
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static ULONG WINAPI IEnumIDList_AddRef(LPENUMIDLIST);
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static ULONG WINAPI IEnumIDList_Release(LPENUMIDLIST);
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static HRESULT WINAPI IEnumIDList_Next(LPENUMIDLIST,ULONG,LPITEMIDLIST*,ULONG*);
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static HRESULT WINAPI IEnumIDList_Skip(LPENUMIDLIST,ULONG);
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static HRESULT WINAPI IEnumIDList_Reset(LPENUMIDLIST);
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static HRESULT WINAPI IEnumIDList_Clone(LPENUMIDLIST,LPENUMIDLIST*);
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static BOOL32 WINAPI IEnumIDList_CreateEnumList(LPENUMIDLIST,LPCSTR, DWORD);
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static BOOL32 WINAPI IEnumIDList_AddToEnumList(LPENUMIDLIST,LPITEMIDLIST);
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static BOOL32 WINAPI IEnumIDList_DeleteList(LPENUMIDLIST);
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/**************************************************************************
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* IEnumIDList_VTable
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*/
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static IEnumIDList_VTable eidlvt =
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{ IEnumIDList_QueryInterface,
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IEnumIDList_AddRef,
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IEnumIDList_Release,
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IEnumIDList_Next,
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IEnumIDList_Skip,
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IEnumIDList_Reset,
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IEnumIDList_Clone,
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IEnumIDList_CreateEnumList,
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IEnumIDList_AddToEnumList,
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IEnumIDList_DeleteList
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};
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/**************************************************************************
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* IEnumIDList_Constructor
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*/
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LPENUMIDLIST IEnumIDList_Constructor( LPCSTR lpszPath, DWORD dwFlags)
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{ LPENUMIDLIST lpeidl;
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lpeidl = (LPENUMIDLIST)HeapAlloc(GetProcessHeap(),0,sizeof(IEnumIDList));
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if (! lpeidl)
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return NULL;
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lpeidl->ref = 1;
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lpeidl->lpvtbl = &eidlvt;
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lpeidl->mpFirst=NULL;
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lpeidl->mpLast=NULL;
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lpeidl->mpCurrent=NULL;
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TRACE(shell,"(%p)->(%s flags=0x%08lx)\n",lpeidl,debugstr_a(lpszPath),dwFlags);
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if(!IEnumIDList_CreateEnumList(lpeidl, lpszPath, dwFlags))
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{ if (lpeidl)
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{ HeapFree(GetProcessHeap(),0,lpeidl);
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}
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return NULL;
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}
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TRACE(shell,"-- (%p)->()\n",lpeidl);
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shell32_ObjCount++;
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return lpeidl;
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}
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/**************************************************************************
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* EnumIDList::QueryInterface
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*/
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static HRESULT WINAPI IEnumIDList_QueryInterface(
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LPENUMIDLIST this, REFIID riid, LPVOID *ppvObj)
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{ char xriid[50];
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WINE_StringFromCLSID((LPCLSID)riid,xriid);
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TRACE(shell,"(%p)->(\n\tIID:\t%s,%p)\n",this,xriid,ppvObj);
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*ppvObj = NULL;
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if(IsEqualIID(riid, &IID_IUnknown)) /*IUnknown*/
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{ *ppvObj = this;
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}
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else if(IsEqualIID(riid, &IID_IEnumIDList)) /*IEnumIDList*/
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{ *ppvObj = (IEnumIDList*)this;
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}
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if(*ppvObj)
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{ (*(LPENUMIDLIST*)ppvObj)->lpvtbl->fnAddRef(this);
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TRACE(shell,"-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
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return S_OK;
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}
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TRACE(shell,"-- Interface: E_NOINTERFACE\n");
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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_AddRef(LPENUMIDLIST this)
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{ TRACE(shell,"(%p)->(%lu)\n",this,this->ref);
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shell32_ObjCount++;
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return ++(this->ref);
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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_Release(LPENUMIDLIST this)
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{ TRACE(shell,"(%p)->(%lu)\n",this,this->ref);
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shell32_ObjCount--;
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if (!--(this->ref))
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{ TRACE(shell," destroying IEnumIDList(%p)\n",this);
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IEnumIDList_DeleteList(this);
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HeapFree(GetProcessHeap(),0,this);
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return 0;
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}
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return this->ref;
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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_Next(
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LPENUMIDLIST this,ULONG celt,LPITEMIDLIST * rgelt,ULONG *pceltFetched)
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{ ULONG i;
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HRESULT hr = S_OK;
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LPITEMIDLIST temp;
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TRACE(shell,"(%p)->(%ld,%p, %p)\n",this,celt,rgelt,pceltFetched);
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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(pceltFetched)
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*pceltFetched = 0;
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*rgelt=0;
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if(celt > 1 && !pceltFetched)
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{ return E_INVALIDARG;
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}
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for(i = 0; i < celt; i++)
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{ if(!(this->mpCurrent))
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{ hr = S_FALSE;
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break;
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}
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temp = ILClone(this->mpCurrent->pidl);
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rgelt[i] = temp;
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this->mpCurrent = this->mpCurrent->pNext;
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}
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if(pceltFetched)
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{ *pceltFetched = i;
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}
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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_Skip(
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LPENUMIDLIST this,ULONG celt)
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{ DWORD dwIndex;
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HRESULT hr = S_OK;
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TRACE(shell,"(%p)->(%lu)\n",this,celt);
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for(dwIndex = 0; dwIndex < celt; dwIndex++)
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{ if(!this->mpCurrent)
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{ hr = S_FALSE;
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break;
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}
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this->mpCurrent = this->mpCurrent->pNext;
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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_Reset(LPENUMIDLIST this)
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{ TRACE(shell,"(%p)\n",this);
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this->mpCurrent = this->mpFirst;
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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_Clone(
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LPENUMIDLIST this,LPENUMIDLIST * ppenum)
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{ TRACE(shell,"(%p)->() to (%p)->() E_NOTIMPL\n",this,ppenum);
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return E_NOTIMPL;
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}
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/**************************************************************************
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* EnumIDList_CreateEnumList()
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* fixme: devices not handled
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* fixme: add wildcards to path
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*/
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static BOOL32 WINAPI IEnumIDList_CreateEnumList(LPENUMIDLIST this, LPCSTR lpszPath, DWORD dwFlags)
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{ LPITEMIDLIST pidl=NULL;
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LPPIDLDATA pData=NULL;
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WIN32_FIND_DATA32A stffile;
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HANDLE32 hFile;
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DWORD dwDrivemap;
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CHAR szDriveName[4];
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CHAR szPath[MAX_PATH];
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TRACE(shell,"(%p)->(path=%s flags=0x%08lx) \n",this,debugstr_a(lpszPath),dwFlags);
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if (lpszPath && lpszPath[0]!='\0')
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{ strcpy(szPath, lpszPath);
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PathAddBackslash32A(szPath);
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strcat(szPath,"*.*");
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}
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/*enumerate the folders*/
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if(dwFlags & SHCONTF_FOLDERS)
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{ /* special case - we can't enumerate the Desktop level Objects (MyComputer,Nethood...
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so we need to fake an enumeration of those.*/
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if(!lpszPath)
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{ TRACE (shell,"-- (%p)-> enumerate SHCONTF_FOLDERS (special) items\n",this);
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/*create the pidl for this item */
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pidl = _ILCreateMyComputer();
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if(pidl)
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{ pData = _ILGetDataPointer(pidl);
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pData->u.generic.dwSFGAO = SFGAO_HASPROPSHEET | SFGAO_READONLY | SFGAO_HASSUBFOLDER;
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if(!IEnumIDList_AddToEnumList(this, pidl))
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return FALSE;
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}
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}
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else if (lpszPath[0]=='\0') /* enumerate the drives*/
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{ TRACE (shell,"-- (%p)-> enumerate SHCONTF_FOLDERS (drives)\n",this);
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dwDrivemap = GetLogicalDrives();
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strcpy (szDriveName,"A:\\");
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while (szDriveName[0]<='Z')
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{ if(dwDrivemap & 0x00000001L)
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{ pidl = _ILCreateDrive(szDriveName);
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pData = _ILGetDataPointer(pidl);
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pData->u.drive.dwSFGAO = SFGAO_HASPROPSHEET | SFGAO_READONLY | SFGAO_CANLINK |
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SFGAO_HASSUBFOLDER | SFGAO_DROPTARGET | SFGAO_FILESYSTEM;
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if(pidl)
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{ if(!IEnumIDList_AddToEnumList(this, pidl))
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return FALSE;
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}
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}
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szDriveName[0]++;
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dwDrivemap = dwDrivemap >> 1;
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}
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}
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else
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{ TRACE (shell,"-- (%p)-> enumerate SHCONTF_FOLDERS of %s\n",this,debugstr_a(szPath));
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hFile = FindFirstFile32A(szPath,&stffile);
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if ( hFile != INVALID_HANDLE_VALUE32 )
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{ do
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{ if ( (stffile.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && strcmp (stffile.cFileName, ".") && strcmp (stffile.cFileName, ".."))
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{ pidl = _ILCreateFolder( stffile.cFileName);
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if(pidl)
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{ pData = _ILGetDataPointer(pidl);
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pData->u.folder.dwSFGAO = SFGAO_CANCOPY | SFGAO_CANDELETE | SFGAO_CANLINK |
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SFGAO_CANMOVE | SFGAO_CANRENAME | SFGAO_DROPTARGET |
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SFGAO_HASPROPSHEET | SFGAO_FILESYSTEM | SFGAO_FOLDER;
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if ( stffile.dwFileAttributes & FILE_ATTRIBUTE_READONLY)
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{ pData->u.folder.dwSFGAO |= SFGAO_READONLY;
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}
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FileTimeToDosDateTime(&stffile.ftLastWriteTime,&pData->u.folder.uFileDate,&pData->u.folder.uFileTime);
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pData->u.folder.dwFileSize = stffile.nFileSizeLow;
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pData->u.folder.uFileAttribs=stffile.dwFileAttributes;
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strncpy (pData->u.folder.szAlternateName, stffile.cAlternateFileName,14);
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if(!IEnumIDList_AddToEnumList(this, pidl))
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{ return FALSE;
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}
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}
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else
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{ return FALSE;
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}
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}
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} while( FindNextFile32A(hFile,&stffile));
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FindClose32 (hFile);
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}
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}
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}
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/*enumerate the non-folder items (values) */
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if(dwFlags & SHCONTF_NONFOLDERS)
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{ if(lpszPath)
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{ TRACE (shell,"-- (%p)-> enumerate SHCONTF_NONFOLDERS of %s\n",this,debugstr_a(szPath));
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hFile = FindFirstFile32A(szPath,&stffile);
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if ( hFile != INVALID_HANDLE_VALUE32 )
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{ do
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{ if (! (stffile.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) )
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{ pidl = _ILCreateValue( stffile.cFileName);
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if(pidl)
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{ pData = _ILGetDataPointer(pidl);
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pData->u.file.dwSFGAO = SFGAO_CANCOPY | SFGAO_CANDELETE | SFGAO_CANLINK |
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SFGAO_CANMOVE | SFGAO_CANRENAME | SFGAO_DROPTARGET |
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SFGAO_HASPROPSHEET | SFGAO_FILESYSTEM;
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if ( stffile.dwFileAttributes & FILE_ATTRIBUTE_READONLY)
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{ pData->u.file.dwSFGAO |= SFGAO_READONLY;
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}
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FileTimeToDosDateTime(&stffile.ftLastWriteTime,&pData->u.file.uFileDate,&pData->u.file.uFileTime);
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pData->u.file.dwFileSize = stffile.nFileSizeLow;
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pData->u.file.uFileAttribs=stffile.dwFileAttributes;
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strncpy (pData->u.file.szAlternateName, stffile.cAlternateFileName,14);
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if(!IEnumIDList_AddToEnumList(this, pidl))
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{ return FALSE;
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}
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}
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else
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{ return FALSE;
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}
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}
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} while( FindNextFile32A(hFile,&stffile));
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FindClose32 (hFile);
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}
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}
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}
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return TRUE;
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}
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/**************************************************************************
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* EnumIDList_AddToEnumList()
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*/
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static BOOL32 WINAPI IEnumIDList_AddToEnumList(LPENUMIDLIST this,LPITEMIDLIST pidl)
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{ LPENUMLIST pNew;
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TRACE(shell,"(%p)->(pidl=%p)\n",this,pidl);
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pNew = (LPENUMLIST)SHAlloc(sizeof(ENUMLIST));
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if(pNew)
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{ /*set the next pointer */
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pNew->pNext = NULL;
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pNew->pidl = pidl;
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/*is this the first item in the list? */
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if(!this->mpFirst)
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{ this->mpFirst = pNew;
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this->mpCurrent = pNew;
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}
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if(this->mpLast)
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{ /*add the new item to the end of the list */
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this->mpLast->pNext = pNew;
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}
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/*update the last item pointer */
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this->mpLast = pNew;
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TRACE(shell,"-- (%p)->(first=%p, last=%p)\n",this,this->mpFirst,this->mpLast);
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return TRUE;
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}
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return FALSE;
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}
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/**************************************************************************
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* EnumIDList_DeleteList()
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*/
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static BOOL32 WINAPI IEnumIDList_DeleteList(LPENUMIDLIST this)
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{ LPENUMLIST pDelete;
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TRACE(shell,"(%p)->()\n",this);
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while(this->mpFirst)
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{ pDelete = this->mpFirst;
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this->mpFirst = pDelete->pNext;
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SHFree(pDelete->pidl);
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SHFree(pDelete);
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}
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this->mpFirst = this->mpLast = this->mpCurrent = NULL;
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return TRUE;
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}
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