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Ignore invalid iSubItem in LISTVIEW_GetItemT().

This commit is contained in:
Rein Klazes 2003-11-17 20:01:49 +00:00 committed by Alexandre Julliard
parent 778f4b261a
commit 7b6b9d6e93
1 changed files with 18 additions and 10 deletions
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28
dlls/comctl32/listview.c
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@ -4982,6 +4982,7 @@ static BOOL LISTVIEW_GetItemT(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL i
ITEM_INFO *lpItem; ITEM_INFO *lpItem;
ITEMHDR* pItemHdr; ITEMHDR* pItemHdr;
HDPA hdpaSubItems; HDPA hdpaSubItems;
INT isubitem;
TRACE("(lpLVItem=%s, isW=%d)\n", debuglvitem_t(lpLVItem, isW), isW); TRACE("(lpLVItem=%s, isW=%d)\n", debuglvitem_t(lpLVItem, isW), isW);
@ -4990,6 +4991,9 @@ static BOOL LISTVIEW_GetItemT(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL i
if (lpLVItem->mask == 0) return TRUE; if (lpLVItem->mask == 0) return TRUE;
/* make a local copy */
isubitem = lpLVItem->iSubItem;
/* a quick optimization if all we're asked is the focus state /* a quick optimization if all we're asked is the focus state
* these queries are worth optimising since they are common, * these queries are worth optimising since they are common,
* and can be answered in constant time, without the heavy accesses */ * and can be answered in constant time, without the heavy accesses */
@ -5016,7 +5020,7 @@ static BOOL LISTVIEW_GetItemT(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL i
* depend on the uninitialized fields being 0 */ * depend on the uninitialized fields being 0 */
dispInfo.item.mask = lpLVItem->mask & ~LVIF_PARAM; dispInfo.item.mask = lpLVItem->mask & ~LVIF_PARAM;
dispInfo.item.iItem = lpLVItem->iItem; dispInfo.item.iItem = lpLVItem->iItem;
dispInfo.item.iSubItem = lpLVItem->iSubItem; dispInfo.item.iSubItem = isubitem;
if (lpLVItem->mask & LVIF_TEXT) if (lpLVItem->mask & LVIF_TEXT)
{ {
dispInfo.item.pszText = lpLVItem->pszText; dispInfo.item.pszText = lpLVItem->pszText;
@ -5048,7 +5052,7 @@ static BOOL LISTVIEW_GetItemT(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL i
if (lpLVItem->mask & LVIF_PARAM) lpLVItem->lParam = 0; if (lpLVItem->mask & LVIF_PARAM) lpLVItem->lParam = 0;
/* we store only a little state, so if we're not asked, we're done */ /* we store only a little state, so if we're not asked, we're done */
if (!(lpLVItem->mask & LVIF_STATE) || lpLVItem->iSubItem) return TRUE; if (!(lpLVItem->mask & LVIF_STATE) || isubitem) return TRUE;
/* if focus is handled by us, report it */ /* if focus is handled by us, report it */
if ( lpLVItem->stateMask & ~infoPtr->uCallbackMask & LVIS_FOCUSED ) if ( lpLVItem->stateMask & ~infoPtr->uCallbackMask & LVIS_FOCUSED )
@ -5074,16 +5078,20 @@ static BOOL LISTVIEW_GetItemT(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL i
lpItem = (ITEM_INFO *)DPA_GetPtr(hdpaSubItems, 0); lpItem = (ITEM_INFO *)DPA_GetPtr(hdpaSubItems, 0);
assert (lpItem); assert (lpItem);
if (lpLVItem->iSubItem) if (isubitem)
{ {
SUBITEM_INFO *lpSubItem = LISTVIEW_GetSubItemPtr(hdpaSubItems, lpLVItem->iSubItem); SUBITEM_INFO *lpSubItem = LISTVIEW_GetSubItemPtr(hdpaSubItems, isubitem);
pItemHdr = lpSubItem ? &lpSubItem->hdr : &callbackHdr; pItemHdr = lpSubItem ? &lpSubItem->hdr : &callbackHdr;
if( !lpSubItem) {
WARN(" iSubItem invalid (%08x), ignored.\n", isubitem);
isubitem = 0;
}
} }
else else
pItemHdr = &lpItem->hdr; pItemHdr = &lpItem->hdr;
/* Do we need to query the state from the app? */ /* Do we need to query the state from the app? */
if ((lpLVItem->mask & LVIF_STATE) && infoPtr->uCallbackMask && lpLVItem->iSubItem == 0) if ((lpLVItem->mask & LVIF_STATE) && infoPtr->uCallbackMask && isubitem == 0)
{ {
dispInfo.item.mask |= LVIF_STATE; dispInfo.item.mask |= LVIF_STATE;
dispInfo.item.stateMask = infoPtr->uCallbackMask; dispInfo.item.stateMask = infoPtr->uCallbackMask;
@ -5091,7 +5099,7 @@ static BOOL LISTVIEW_GetItemT(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL i
/* Do we need to enquire about the image? */ /* Do we need to enquire about the image? */
if ((lpLVItem->mask & LVIF_IMAGE) && pItemHdr->iImage == I_IMAGECALLBACK && if ((lpLVItem->mask & LVIF_IMAGE) && pItemHdr->iImage == I_IMAGECALLBACK &&
(lpLVItem->iSubItem == 0 || (infoPtr->dwLvExStyle & LVS_EX_SUBITEMIMAGES))) (isubitem == 0 || (infoPtr->dwLvExStyle & LVS_EX_SUBITEMIMAGES)))
{ {
dispInfo.item.mask |= LVIF_IMAGE; dispInfo.item.mask |= LVIF_IMAGE;
dispInfo.item.iImage = I_IMAGECALLBACK; dispInfo.item.iImage = I_IMAGECALLBACK;
@ -5111,14 +5119,14 @@ static BOOL LISTVIEW_GetItemT(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL i
if (dispInfo.item.mask != 0) if (dispInfo.item.mask != 0)
{ {
dispInfo.item.iItem = lpLVItem->iItem; dispInfo.item.iItem = lpLVItem->iItem;
dispInfo.item.iSubItem = lpLVItem->iSubItem; dispInfo.item.iSubItem = isubitem;
dispInfo.item.lParam = lpItem->lParam; dispInfo.item.lParam = lpItem->lParam;
notify_dispinfoT(infoPtr, LVN_GETDISPINFOW, &dispInfo, isW); notify_dispinfoT(infoPtr, LVN_GETDISPINFOW, &dispInfo, isW);
TRACE(" getdispinfo(2):item=%s\n", debuglvitem_t(&dispInfo.item, isW)); TRACE(" getdispinfo(2):item=%s\n", debuglvitem_t(&dispInfo.item, isW));
} }
/* we should not store values for subitems */ /* we should not store values for subitems */
if (lpLVItem->iSubItem) dispInfo.item.mask &= ~LVIF_DI_SETITEM; if (isubitem) dispInfo.item.mask &= ~LVIF_DI_SETITEM;
/* Now, handle the iImage field */ /* Now, handle the iImage field */
if (dispInfo.item.mask & LVIF_IMAGE) if (dispInfo.item.mask & LVIF_IMAGE)
@ -5129,7 +5137,7 @@ static BOOL LISTVIEW_GetItemT(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL i
} }
else if (lpLVItem->mask & LVIF_IMAGE) else if (lpLVItem->mask & LVIF_IMAGE)
{ {
if(lpLVItem->iSubItem == 0 || (infoPtr->dwLvExStyle & LVS_EX_SUBITEMIMAGES)) if(isubitem == 0 || (infoPtr->dwLvExStyle & LVS_EX_SUBITEMIMAGES))
lpLVItem->iImage = pItemHdr->iImage; lpLVItem->iImage = pItemHdr->iImage;
else else
lpLVItem->iImage = 0; lpLVItem->iImage = 0;
@ -5150,7 +5158,7 @@ static BOOL LISTVIEW_GetItemT(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL i
} }
/* if this is a subitem, we're done */ /* if this is a subitem, we're done */
if (lpLVItem->iSubItem) return TRUE; if (isubitem) return TRUE;
/* Next is the lParam field */ /* Next is the lParam field */
if (dispInfo.item.mask & LVIF_PARAM) if (dispInfo.item.mask & LVIF_PARAM)