Thomas Faber : comctl32: Unset the toolbar' s hot item when deleting a button.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 4c5723296290d1db609a4c0c4078dcea6f828fad
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=4c5723296290d1db609a4c0c4078dcea6f828fad

Author: Thomas Faber <thomas.faber at reactos.org>
Date:   Fri Jan 19 11:44:43 2018 +0100

comctl32: Unset the toolbar's hot item when deleting a button.

Signed-off-by: Thomas Faber <thomas.faber at reactos.org>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/comctl32/tests/toolbar.c | 10 ++++++++++
 dlls/comctl32/toolbar.c       |  1 +
 2 files changed, 11 insertions(+)

diff --git a/dlls/comctl32/tests/toolbar.c b/dlls/comctl32/tests/toolbar.c
index 1dfd4b2..2c1b789 100644
--- a/dlls/comctl32/tests/toolbar.c
+++ b/dlls/comctl32/tests/toolbar.c
@@ -923,6 +923,16 @@ static void test_hotitem(void)
     ok(ret == 1, "TB_GETHOTITEM returned %ld, expected 1\n", ret);
     ok(g_fReceivedHotItemChange == FALSE, "Unexpected TBN_HOTITEMCHANGE\n");
 
+    /* deleting a button unsets the hot item */
+    ret = SendMessageA(hToolbar, TB_SETHOTITEM, 0, 0);
+    ok(ret == 1, "TB_SETHOTITEM returned %ld, expected 1\n", ret);
+    g_fReceivedHotItemChange = FALSE;
+    ret = SendMessageA(hToolbar, TB_DELETEBUTTON, 1, 0);
+    ok(ret == TRUE, "TB_DELETEBUTTON returned %ld, expected TRUE\n", ret);
+    ret = SendMessageA(hToolbar, TB_GETHOTITEM, 0, 0);
+    ok(ret == -1, "TB_GETHOTITEM returned %ld, expected -1\n", ret);
+    ok(g_fReceivedHotItemChange == FALSE, "Unexpected TBN_HOTITEMCHANGE\n");
+
     DestroyWindow(hToolbar);
 }
 
diff --git a/dlls/comctl32/toolbar.c b/dlls/comctl32/toolbar.c
index 8a03597..f9a2220 100644
--- a/dlls/comctl32/toolbar.c
+++ b/dlls/comctl32/toolbar.c
@@ -3233,6 +3233,7 @@ TOOLBAR_DeleteButton (TOOLBAR_INFO *infoPtr, INT nIndex)
 
     TOOLBAR_TooltipDelTool(infoPtr, &infoPtr->buttons[nIndex]);
 
+    infoPtr->nHotItem = -1;
     if (infoPtr->nNumButtons == 1) {
 	TRACE(" simple delete\n");
         free_string( infoPtr->buttons );