[PATCH 0/2] MR8790: Draft: comctl32/treeview: Return from TREEVIEW_LButtonDown when the treeview handle is invalid.
LButtonDown should return when the treeview handle is invalid (e.g. destroyed) after NM_CLICK to prevent further message processing.
From: Jacob Czekalla jczekalla@codeweavers.com
--- dlls/comctl32/tests/treeview.c | 72 ++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+)
diff --git a/dlls/comctl32/tests/treeview.c b/dlls/comctl32/tests/treeview.c index 5b53a32f51b..1b743a0a23c 100644 --- a/dlls/comctl32/tests/treeview.c +++ b/dlls/comctl32/tests/treeview.c @@ -52,6 +52,7 @@ static char *g_endedit_overwrite_ptr; static HFONT g_customdraw_font; static BOOL g_v6; static int g_reject_tvn_itemexpanding = 0; +static int g_click_delete_test = 0;
#define NUM_MSG_SEQUENCES 3 #define TREEVIEW_SEQ_INDEX 0 @@ -243,6 +244,20 @@ static const struct message test_right_click_seq[] = { { 0 } };
+static const struct message test_click_delete_seq[] = { + { WM_LBUTTONDOWN, sent|wparam, MK_LBUTTON }, + { WM_CAPTURECHANGED, sent|defwinproc }, + { 0x90, sent|defwinproc|optional }, + { WM_SHOWWINDOW, sent|defwinproc|wparam|lparam, 0, 0 }, + { WM_WINDOWPOSCHANGING, sent|defwinproc }, + { WM_WINDOWPOSCHANGED, sent|defwinproc }, + { WM_KILLFOCUS, sent|defwinproc }, + { WM_IME_SETCONTEXT, sent|defwinproc|wparam, 0 }, + { WM_DESTROY, sent|defwinproc }, + { WM_NCDESTROY, sent|defwinproc }, + { 0 } +}; + static const struct message parent_expand_seq[] = { { WM_NOTIFY, sent|id, 0, 0, TVN_ITEMEXPANDINGA }, { WM_NOTIFY, sent|id, 0, 0, TVN_ITEMEXPANDEDA }, @@ -1478,6 +1493,15 @@ static LRESULT CALLBACK parent_wnd_proc(HWND hWnd, UINT message, WPARAM wParam, ok(selected == hChild, "child item should still be selected\n"); break; } + case NM_CLICK: + { + if (g_click_delete_test) + { + DestroyWindow(pHdr->hwndFrom); + return FALSE; + } + break; + } } } break; @@ -3123,6 +3147,53 @@ static void test_right_click(void) DestroyWindow(hTree); }
+static void test_treeview_delete_midclick(void) +{ + HWND treeview; + RECT rc; + POINT pt, orig_pos; + MSG msg; + + g_click_delete_test = 1; + treeview = create_treeview_control(0); + fill_tree(treeview); + ShowWindow(hMainWnd, SW_SHOW); + UpdateWindow(hMainWnd); + + *(HTREEITEM *)&rc = hRoot; + SendMessageA(treeview, TVM_GETITEMRECT, TRUE, (LPARAM)&rc); + + pt.x = (rc.left + rc.right) / 2; + pt.y = (rc.top + rc.bottom) / 2; + ClientToScreen(hMainWnd, &pt); + GetCursorPos(&orig_pos); + SetCursorPos(pt.x, pt.y); + ScreenToClient(treeview, &pt); + + flush_events(); + flush_sequences(sequences, NUM_MSG_SEQUENCES); + + PostMessageA(treeview, WM_LBUTTONDOWN, MK_LBUTTON, MAKELPARAM(pt.x, pt.y)); + PostMessageA(treeview, WM_LBUTTONUP, 0, MAKELPARAM(pt.x, pt.y)); + while (GetMessageA(&msg, 0, 0, 0)) + { + TranslateMessage(&msg); + DispatchMessageA(&msg); + if((msg.hwnd == treeview) && (msg.message == WM_LBUTTONDOWN)) + break; + } + + flush_events(); + ok_sequence(sequences, TREEVIEW_SEQ_INDEX, test_click_delete_seq, "treeview click and destroy sequence", TRUE); + + flush_sequences(sequences, NUM_MSG_SEQUENCES); + SetCursorPos(orig_pos.x, orig_pos.y); + g_click_delete_test = 0; + + if (!IsWindow(treeview)) + DestroyWindow(treeview); +} + static void init_functions(void) { HMODULE hComCtl32 = LoadLibraryA("comctl32.dll"); @@ -3206,6 +3277,7 @@ START_TEST(treeview) test_TVS_FULLROWSELECT(); test_TVM_SORTCHILDREN(); test_right_click(); + test_treeview_delete_midclick();
if (!load_v6_module(&ctx_cookie, &hCtx)) {
From: Jacob Czekalla jczekalla@codeweavers.com
LButtonDown should return when the treeview handle is invalid (e.g. destroyed) after NM_CLICK to prevent further message processing.
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=58211 --- dlls/comctl32/tests/treeview.c | 2 +- dlls/comctl32/treeview.c | 51 ++++++++++++++++++++++++++-------- 2 files changed, 40 insertions(+), 13 deletions(-)
diff --git a/dlls/comctl32/tests/treeview.c b/dlls/comctl32/tests/treeview.c index 1b743a0a23c..d7591b568e9 100644 --- a/dlls/comctl32/tests/treeview.c +++ b/dlls/comctl32/tests/treeview.c @@ -3184,7 +3184,7 @@ static void test_treeview_delete_midclick(void) }
flush_events(); - ok_sequence(sequences, TREEVIEW_SEQ_INDEX, test_click_delete_seq, "treeview click and destroy sequence", TRUE); + ok_sequence(sequences, TREEVIEW_SEQ_INDEX, test_click_delete_seq, "treeview click and destroy sequence", FALSE);
flush_sequences(sequences, NUM_MSG_SEQUENCES); SetCursorPos(orig_pos.x, orig_pos.y); diff --git a/dlls/comctl32/treeview.c b/dlls/comctl32/treeview.c index bf9bad4715e..e353fda34af 100644 --- a/dlls/comctl32/treeview.c +++ b/dlls/comctl32/treeview.c @@ -522,11 +522,22 @@ TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, UINT code, NMHDR *hdr) return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, hdr->idFrom, (LPARAM)hdr); }
+/* + * Returns TRUE if the TREEVIEW is still valid after the notify. + * The notification result is stored in *result if non-NULL. + */ static BOOL -TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code) +TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code, BOOL *result) { NMHDR hdr; - return TREEVIEW_SendRealNotify(infoPtr, code, &hdr); + HWND hwnd; + BOOL notify_val; + + hwnd = infoPtr->hwnd; + notify_val = TREEVIEW_SendRealNotify(infoPtr, code, &hdr); + if (result) + *result = notify_val; + return IsWindow(hwnd); }
static VOID @@ -4193,6 +4204,7 @@ TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam) { TREEVIEW_ITEM *item; TVHITTESTINFO hit; + BOOL notify_result;
TRACE("\n"); SetFocus(infoPtr->hwnd); @@ -4211,7 +4223,9 @@ TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam) return 0; TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, item));
- if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE) + if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK, ¬ify_result) == FALSE) + return 0; + if (notify_result == FALSE) { /* FIXME! */ switch (hit.flags) { @@ -4258,7 +4272,7 @@ TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam) static LRESULT TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam) { - BOOL do_track, do_select, bDoLabelEdit; + BOOL do_track, do_select, bDoLabelEdit, notify_result; HWND hwnd = infoPtr->hwnd; TVHITTESTINFO ht;
@@ -4315,8 +4329,13 @@ TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam) (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
/* Send NM_CLICK right away */ - if (!do_track && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK)) - goto setfocus; + if (!do_track) + { + if (!TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK, ¬ify_result)) + return 0; + if (notify_result) + goto setfocus; + }
if (ht.flags & TVHT_ONITEMBUTTON) { @@ -4345,8 +4364,13 @@ TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam) } }
- if (do_track && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK)) - goto setfocus; + if (do_track) + { + if (!TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK, ¬ify_result)) + return 0; + if (notify_result) + goto setfocus; + }
if (TREEVIEW_IsFullRowSelect(infoPtr)) do_select = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEMICON | TVHT_ONITEMLABEL | TVHT_ONITEMRIGHT); @@ -4385,6 +4409,7 @@ TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam) static LRESULT TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam) { + BOOL notify_result; TVHITTESTINFO ht;
if (infoPtr->hwndEdit) @@ -4414,7 +4439,9 @@ TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam) else { SetFocus(infoPtr->hwnd); - if(!TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK)) + if (!TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK, ¬ify_result)) + return 0; + if (!notify_result) { /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */ SendMessageW(infoPtr->hwndNotify, WM_CONTEXTMENU, @@ -5340,7 +5367,7 @@ TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam) break;
case VK_RETURN: - TREEVIEW_SendSimpleNotify(infoPtr, NM_RETURN); + TREEVIEW_SendSimpleNotify(infoPtr, NM_RETURN, NULL); break;
case VK_HOME: @@ -5666,7 +5693,7 @@ TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr) }
TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem); - TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS); + TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS, NULL); return 0; }
@@ -5677,7 +5704,7 @@ TREEVIEW_KillFocus(const TREEVIEW_INFO *infoPtr)
TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem); UpdateWindow(infoPtr->hwnd); - TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS); + TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS, NULL); return 0; }
Zhiyi Zhang (@zhiyi) commented about dlls/comctl32/tests/treeview.c:
- pt.y = (rc.top + rc.bottom) / 2;
- ClientToScreen(hMainWnd, &pt);
- GetCursorPos(&orig_pos);
- SetCursorPos(pt.x, pt.y);
- ScreenToClient(treeview, &pt);
- flush_events();
- flush_sequences(sequences, NUM_MSG_SEQUENCES);
- PostMessageA(treeview, WM_LBUTTONDOWN, MK_LBUTTON, MAKELPARAM(pt.x, pt.y));
- PostMessageA(treeview, WM_LBUTTONUP, 0, MAKELPARAM(pt.x, pt.y));
- while (GetMessageA(&msg, 0, 0, 0))
- {
TranslateMessage(&msg);DispatchMessageA(&msg);if((msg.hwnd == treeview) && (msg.message == WM_LBUTTONDOWN))
Space after if. Actually, I think you can delete the whole while loop. You have a flush_events() afterwards, and DestroyWindow() is called when handling NM_CLICK. I don't think the while loop is necessary.
Zhiyi Zhang (@zhiyi) commented about dlls/comctl32/tests/treeview.c:
DestroyWindow(hTree);}
I don't know why you opened a new MR. You can use the old MR, and that will make comparison with older versions easier.
Zhiyi Zhang (@zhiyi) commented about dlls/comctl32/tests/treeview.c:
test_TVS_FULLROWSELECT(); test_TVM_SORTCHILDREN(); test_right_click();
- test_treeview_delete_midclick();
Let's add the test for comctl32 v6. You can call test_treeview_delete_midclick() again after load_v6_module().
Zhiyi Zhang (@zhiyi) commented about dlls/comctl32/tests/treeview.c:
- while (GetMessageA(&msg, 0, 0, 0))
- {
TranslateMessage(&msg);DispatchMessageA(&msg);if((msg.hwnd == treeview) && (msg.message == WM_LBUTTONDOWN))break;- }
- flush_events();
- ok_sequence(sequences, TREEVIEW_SEQ_INDEX, test_click_delete_seq, "treeview click and destroy sequence", TRUE);
- flush_sequences(sequences, NUM_MSG_SEQUENCES);
- SetCursorPos(orig_pos.x, orig_pos.y);
- g_click_delete_test = 0;
- if (!IsWindow(treeview))
Can this happen?
-
Jacob Czekalla -
Jacob Czekalla (＠JacobCzekalla)
-
Zhiyi Zhang (＠zhiyi)