[PATCH v9 0/2] MR6160: comctl32: Fix sorting for listview.

[Jacob Czekalla (＠JacobCzekalla)]

The listview bug is caused by passing the incorrect index to the LISTVIEW_SortItems callers custom compare function. If we pass the copied array indices, which are different because of the sorting, the caller is going to use those indices for their unsorted array which don't match.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56140

--
  v9: comctl32: Fix sorting for listview.

https://gitlab.winehq.org/wine/wine/-/merge_requests/6160

[PATCH v9 1/2] comctl32/tests: Add test for listview sorting order.

[Jacob Czekalla]

From: Jacob Czekalla

---
 dlls/comctl32/tests/listview.c | 73 ++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)

diff --git a/dlls/comctl32/tests/listview.c b/dlls/comctl32/tests/listview.c
index 1081a045cde..718939fa996 100644
--- a/dlls/comctl32/tests/listview.c
+++ b/dlls/comctl32/tests/listview.c
@@ -3028,6 +3028,78 @@ static void test_subitem_rect(void)
     DestroyWindow(hwnd);
 }

+static INT WINAPI test_CallBackCompareEx(LPARAM first, LPARAM second, LPARAM lParam)
+{
+    HWND list_view = (HWND)lParam;
+    CHAR buffer1[256], buffer2[256];
+    int itm1, itm2;
+
+    ListView_GetItemTextA(list_view, first, 0, buffer1, sizeof(buffer1));
+    ListView_GetItemTextA(list_view, second, 0, buffer2, sizeof(buffer2));
+
+    itm1 = atoi(buffer1);
+    itm2 = atoi(buffer2);
+
+    return (itm1 - itm2);
+}
+
+static void test_custom_sort(void)
+{
+    int prev_value;
+    int sorted;
+    LVITEMA lvi = {0};
+    LV_COLUMNA lvc = {0};
+    CHAR buffer[256];
+    CHAR col_names[][2] = { "1", "2" };
+    HWND list_view = create_listview_control(LVS_REPORT);
+
+    lvc.mask = LVCF_TEXT | LVCF_WIDTH | LVCF_SUBITEM;
+    lvc.pszText = col_names[0];
+    lvc.iSubItem = 0;
+    SendMessageA(list_view, LVM_INSERTCOLUMNA, 0, (LPARAM)&lvc);
+
+    lvc.pszText = col_names[1];
+    lvc.iSubItem = 1;
+    SendMessageA(list_view, LVM_INSERTCOLUMNA, 1, (LPARAM)&lvc);
+
+    srand(1234);
+
+    for (int i = 0; i < 100; i++)
+    {
+        lvi.mask = LVIF_TEXT;
+        lvi.iItem = i;
+        lvi.iSubItem = 0;
+        lvi.pszText = buffer;
+        sprintf(buffer, "%d", rand() % 100);
+        SendMessageA(list_view, LVM_INSERTITEMA, 0, (LPARAM)&lvi);
+
+        lvi.iSubItem = 1;
+        sprintf(buffer, "%d", rand() % 100);
+        SendMessageA(list_view, LVM_SETITEMTEXTA, i, (LPARAM)&lvi);
+    }
+
+    SendMessageA(list_view, LVM_SORTITEMSEX, (WPARAM)list_view, (LPARAM)test_CallBackCompareEx);
+
+    for (int i = 1; i < 100; i++)
+    {
+        ListView_GetItemTextA(list_view, i - 1, 0, buffer, sizeof(buffer));
+        prev_value = atoi(buffer);
+
+        ListView_GetItemTextA(list_view, i, 0, buffer, sizeof(buffer));
+
+        if (atoi(buffer) < prev_value)
+        {
+            sorted = 0;
+            break;
+        }
+        sorted = 1;
+    }
+
+    todo_wine ok(sorted, "ListView not sorted correctly.\n");
+
+    DestroyWindow(list_view);
+}
+
 /* comparison callback for test_sorting */
 static INT WINAPI test_CallBackCompare(LPARAM first, LPARAM second, LPARAM lParam)
 {
@@ -7227,6 +7299,7 @@ START_TEST(listview)
     test_LVM_GETCOUNTPERPAGE();
     test_item_state_change();
     test_LVM_SETBKIMAGE(FALSE);
+    test_custom_sort();

if (!load_v6_module(&ctx_cookie, &hCtx))
     {

[PATCH v9 2/2] comctl32: Fix sorting for listview.

[Jacob Czekalla]

From: Jacob Czekalla

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56140
---
 dlls/comctl32/listview.c       | 2 +-
 dlls/comctl32/tests/listview.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/comctl32/listview.c b/dlls/comctl32/listview.c
index c82473b6205..0302e3e19a0 100644
--- a/dlls/comctl32/listview.c
+++ b/dlls/comctl32/listview.c
@@ -9396,7 +9396,7 @@ static BOOL LISTVIEW_SortItems(LISTVIEW_INFO *infoPtr, PFNLVCOMPARE pfnCompare,
     if (infoPtr->nFocusedItem >= 0)
         focusedItem = DPA_GetPtr(infoPtr->hdpaItems, infoPtr->nFocusedItem);

-    context.items = hdpaItems;
+    context.items = infoPtr->hdpaItems;
     context.compare_func = pfnCompare;
     context.lParam = lParamSort;
     if (IsEx)
diff --git a/dlls/comctl32/tests/listview.c b/dlls/comctl32/tests/listview.c
index 718939fa996..920c2c1c351 100644
--- a/dlls/comctl32/tests/listview.c
+++ b/dlls/comctl32/tests/listview.c
@@ -3095,7 +3095,7 @@ static void test_custom_sort(void)
         sorted = 1;
     }

-    todo_wine ok(sorted, "ListView not sorted correctly.\n");
+    ok(sorted, "ListView not sorted correctly.\n");

DestroyWindow(list_view);
 }

[PATCH v9 2/2] comctl32: Fix sorting for listview.

[Marvin]

Hi,

It looks like your patch introduced the new failures shown below.
Please investigate and fix them before resubmitting your patch.
If they are not new, fixing them anyway would help a lot. Otherwise
please ask for the known failures list to be updated.

The tests also ran into some preexisting test failures. If you know how
to fix them that would be helpful. See the TestBot job for the details:

The full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=147487

Your paranoid android.

=== debian11b (64 bit WoW report) ===

user32:
input.c:4305: Test succeeded inside todo block: button_down_hwnd_todo 1: got MSG_TEST_WIN hwnd 00000000003200CC, msg WM_LBUTTONDOWN, wparam 0x1, lparam 0x320032

[PATCH v9 0/2] MR6160: comctl32: Fix sorting for listview. - approved

[Zhiyi Zhang (＠zhiyi)]

This merge request was approved by Zhiyi Zhang.

[Jacob Czekalla (＠JacobCzekalla)]

Thanks for all the time and help you gave me for this patch!