comctl32/listview: Send one deselect all items notification for LVS_OWNERDATA listviews.

Send one deselect all items notification on selection change for LVS_OWNERDATA listviews instead of notifying about each individual item change. Signed-off-by: Angelo Haller <angelo@szanni.org>

comctl32/listview: Send one deselect all items notification for LVS_OWNERDATA listviews.
8b392553 · Angelo Haller · Alexandre Julliard · 38cf242e · 8b392553
Commit 8b392553 authored Jun 28, 2022 by Angelo Haller Committed by Alexandre Julliard Aug 08, 2022
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listview.c dlls/comctl32/listview.c +8 -1

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--- a/dlls/comctl32/listview.c
+++ b/dlls/comctl32/listview.c
@@ -3406,7 +3406,14 @@ static BOOL LISTVIEW_DeselectAllSkipItems(LISTVIEW_INFO *infoPtr, RANGES toSkip)

    lvItem.state = 0;
    lvItem.stateMask = LVIS_SELECTED;
-    
+
+    /* Only send one deselect all (-1) notification for LVS_OWNERDATA style */
+    if (infoPtr->dwStyle & LVS_OWNERDATA)
+    {
+        LISTVIEW_SetItemState(infoPtr, -1, &lvItem);
+        return TRUE;
+    }
+
    /* need to clone the DPA because callbacks can change it */
    if (!(clone = ranges_clone(infoPtr->selectionRanges))) return FALSE;
    iterator_rangesitems(&i, ranges_diff(clone, toSkip));