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Unify set_{owner,main}_item functions. 

Fix {old,new}state and lParam reporting in LVN_ITEMCHANG{ING,ED}.
Fix sanity check conditions for LVS_OWNERDATA.
This commit is contained in:
Dimitrie O. Paun 2002-10-17 21:54:57 +00:00 committed by Alexandre Julliard
parent 96dca36cc8
commit 8f38417376
1 changed files with 46 additions and 104 deletions
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134
dlls/comctl32/listview.c
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@ -2868,77 +2868,6 @@ static inline BOOL is_assignable_item(LPLVITEMW lpLVItem, LONG lStyle)
return TRUE;
}
/***
* DESCRIPTION:
* Helper for LISTVIEW_SetItemT *only*: sets item attributes.
*
* PARAMETER(S):
* [I] infoPtr : valid pointer to the listview structure
* [I] lpLVItem : valid pointer to new item atttributes
* [I] isW : TRUE if lpLVItem is Unicode, FALSE if it's ANSI
* [O] bChanged : will be set to TRUE if the item really changed
*
* RETURN:
* SUCCESS : TRUE
* FAILURE : FALSE
*/
static BOOL set_owner_item(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL isW, BOOL *bChanged)
{
LONG lStyle = infoPtr->dwStyle;
NMLISTVIEW nmlv;
INT oldState;
TRACE("()\n");
/* a virtual listview stores only the state for the main item */
if (lpLVItem->iSubItem || !(lpLVItem->mask & LVIF_STATE)) return FALSE;
oldState = (LVIS_FOCUSED | LVIS_SELECTED) & ~infoPtr->uCallbackMask;
if (oldState) oldState = LISTVIEW_GetItemState(infoPtr, lpLVItem->iItem, oldState);
TRACE("oldState=%x, newState=%x\n", oldState, lpLVItem->state);
/* we're done if we don't need to change anything we handle */
if ( !((oldState ^ lpLVItem->state) & lpLVItem->stateMask &
~infoPtr->uCallbackMask & (LVIS_FOCUSED | LVIS_SELECTED))) return TRUE;
*bChanged = TRUE;
/*
* As per MSDN LVN_ITEMCHANGING notifications are _NOT_ sent for
* by LVS_OWERNDATA list controls
*/
/* if we handle the focus, and we're asked to change it, do it now */
if ( lpLVItem->stateMask & LVIS_FOCUSED )
{
if (lpLVItem->state & LVIS_FOCUSED)
infoPtr->nFocusedItem = lpLVItem->iItem;
else if (infoPtr->nFocusedItem == lpLVItem->iItem)
infoPtr->nFocusedItem = -1;
}
/* and the selection is the only other state a virtual list may hold */
if (lpLVItem->stateMask & LVIS_SELECTED)
{
if (lpLVItem->state & LVIS_SELECTED)
{
if (lStyle & LVS_SINGLESEL) LISTVIEW_DeselectAllSkipItem(infoPtr, lpLVItem->iItem);
ranges_additem(infoPtr->selectionRanges, lpLVItem->iItem);
}
else
ranges_delitem(infoPtr->selectionRanges, lpLVItem->iItem);
}
/* notify the parent now that things have changed */
ZeroMemory(&nmlv, sizeof(nmlv));
nmlv.iItem = lpLVItem->iItem;
nmlv.uNewState = lpLVItem->state;
nmlv.uOldState = oldState;
nmlv.uChanged = LVIF_STATE;
notify_listview(infoPtr, LVN_ITEMCHANGED, &nmlv);
return TRUE;
}
/***
* DESCRIPTION:
@ -2956,27 +2885,37 @@ static BOOL set_owner_item(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL isW,
*/
static BOOL set_main_item(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL isW, BOOL *bChanged)
{
LONG lStyle = infoPtr->dwStyle;
HDPA hdpaSubItems;
LISTVIEW_ITEM *lpItem;
NMLISTVIEW nmlv;
UINT uChanged = 0, oldState;
UINT uChanged = 0;
LVITEMW item;
TRACE("()\n");
hdpaSubItems = (HDPA)DPA_GetPtr(infoPtr->hdpaItems, lpLVItem->iItem);
if (!hdpaSubItems && hdpaSubItems != (HDPA)-1) return FALSE;
lpItem = (LISTVIEW_ITEM *)DPA_GetPtr(hdpaSubItems, 0);
if (!lpItem) return FALSE;
if (infoPtr->dwStyle & LVS_OWNERDATA)
{
/* a virtual listview we stores only selection and focus */
if ((lpLVItem->mask & ~LVIF_STATE) || (lpLVItem->stateMask & ~(LVIS_FOCUSED | LVIS_SELECTED)))
return FALSE;
lpItem = NULL;
}
else
{
HDPA hdpaSubItems = (HDPA)DPA_GetPtr(infoPtr->hdpaItems, lpLVItem->iItem);
if (!hdpaSubItems) return FALSE;
if (!(lpItem = (LISTVIEW_ITEM *)DPA_GetPtr(hdpaSubItems, 0))) return FALSE;
}
/* we need to handle the focus, and selection differently */
oldState = (LVIS_FOCUSED | LVIS_SELECTED) & ~infoPtr->uCallbackMask;
if (oldState) oldState = LISTVIEW_GetItemState(infoPtr, lpLVItem->iItem, oldState);
item.iItem = lpLVItem->iItem;
item.iSubItem = lpLVItem->iSubItem;
item.mask = LVIF_STATE | LVIF_PARAM;
item.stateMask = ~0;
if (!LISTVIEW_GetItemT(infoPtr, &item, TRUE)) return FALSE;
TRACE("oldState=%x, newState=%x\n", oldState, lpLVItem->state);
TRACE("oldState=%x, newState=%x\n", item.state, lpLVItem->state);
/* determine what fields will change */
if ((lpLVItem->mask & LVIF_STATE) && ((oldState ^ lpLVItem->state) & lpLVItem->stateMask & ~infoPtr->uCallbackMask))
if ((lpLVItem->mask & LVIF_STATE) && ((item.state ^ lpLVItem->state) & lpLVItem->stateMask & ~infoPtr->uCallbackMask))
uChanged |= LVIF_STATE;
if ((lpLVItem->mask & LVIF_IMAGE) && (lpItem->hdr.iImage != lpLVItem->iImage))
@ -2997,13 +2936,14 @@ static BOOL set_main_item(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL isW,
ZeroMemory(&nmlv, sizeof(NMLISTVIEW));
nmlv.iItem = lpLVItem->iItem;
nmlv.uNewState = lpLVItem->state & lpLVItem->stateMask;
nmlv.uOldState = lpItem->state & lpLVItem->stateMask;
nmlv.uNewState = (item.state & ~lpLVItem->stateMask) | (lpLVItem->state & lpLVItem->stateMask);
nmlv.uOldState = item.state;
nmlv.uChanged = uChanged;
nmlv.lParam = lpItem->lParam;
nmlv.lParam = item.lParam;
/* send LVN_ITEMCHANGING notification, if the item is not being inserted */
if(lpItem->valid && notify_listview(infoPtr, LVN_ITEMCHANGING, &nmlv))
/* and we are _NOT_ virtual (LVS_OWERNDATA) */
if(lpItem && lpItem->valid && notify_listview(infoPtr, LVN_ITEMCHANGING, &nmlv))
return FALSE;
/* copy information */
@ -3020,12 +2960,15 @@ static BOOL set_main_item(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL isW,
lpItem->iIndent = lpLVItem->iIndent;
if (uChanged & LVIF_STATE)
{
if (lpLVItem->stateMask & ~infoPtr->uCallbackMask & ~(LVIS_FOCUSED | LVIS_SELECTED))
{
lpItem->state &= ~lpLVItem->stateMask;
lpItem->state |= (lpLVItem->state & lpLVItem->stateMask);
}
if (lpLVItem->state & lpLVItem->stateMask & ~infoPtr->uCallbackMask & LVIS_SELECTED)
{
if (lStyle & LVS_SINGLESEL) LISTVIEW_DeselectAllSkipItem(infoPtr, lpLVItem->iItem);
if (infoPtr->dwStyle & LVS_SINGLESEL) LISTVIEW_DeselectAllSkipItem(infoPtr, lpLVItem->iItem);
ranges_additem(infoPtr->selectionRanges, lpLVItem->iItem);
}
else if (lpLVItem->stateMask & LVIS_SELECTED)
@ -3045,10 +2988,10 @@ static BOOL set_main_item(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL isW,
}
/* if we're inserting the item, we're done */
if (!lpItem->valid) return TRUE;
if (lpItem && !lpItem->valid) return TRUE;
/* send LVN_ITEMCHANGED notification */
nmlv.lParam = lpItem->lParam;
if (lpLVItem->mask & LVIF_PARAM) nmlv.lParam = lpLVItem->lParam;
notify_listview(infoPtr, LVN_ITEMCHANGED, &nmlv);
return TRUE;
@ -3073,6 +3016,9 @@ static BOOL set_sub_item(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL isW, B
HDPA hdpaSubItems;
LISTVIEW_SUBITEM *lpSubItem;
/* we do not support subitems for virtual listviews */
if (infoPtr->dwStyle & LVS_OWNERDATA) return FALSE;
/* set subitem only if column is present */
if (Header_GetItemCount(infoPtr->hwndHeader) <= lpLVItem->iSubItem)
return FALSE;
@ -3150,6 +3096,8 @@ static BOOL LISTVIEW_SetItemT(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL i
if (!lpLVItem || lpLVItem->iItem < 0 || lpLVItem->iItem >= infoPtr->nItemCount)
return FALSE;
if (lpLVItem->mask == 0) return TRUE;
/* For efficiency, we transform the lpLVItem->pszText to Unicode here */
if ((lpLVItem->mask & LVIF_TEXT) && is_textW(lpLVItem->pszText))
{
@ -3158,18 +3106,12 @@ static BOOL LISTVIEW_SetItemT(LISTVIEW_INFO *infoPtr, LPLVITEMW lpLVItem, BOOL i
}
/* actually set the fields */
if (infoPtr->dwStyle & LVS_OWNERDATA)
bResult = set_owner_item(infoPtr, lpLVItem, TRUE, &bChanged);
else
{
/* sanity checks first */
if (!is_assignable_item(lpLVItem, infoPtr->dwStyle)) return FALSE;
if (lpLVItem->iSubItem)
bResult = set_sub_item(infoPtr, lpLVItem, TRUE, &bChanged);
else
bResult = set_main_item(infoPtr, lpLVItem, TRUE, &bChanged);
}
/* redraw item, if necessary */
if (bChanged && !infoPtr->bIsDrawing)