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hw/xwin: More adjustments to multiwindow mode focus handling

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The previous change is not enough, as WM_KILLFOCUS can apparently be
sent to the window losing focus after WM_ACTIVATE has been sent to
the window gaining focus.

Try using WM_SETFOCUS instead, as that has the correct ordering and seems
more logical.

The test "!pWin || !pWin->overrideRedirect" is confusingly written: It's
true if:

(a) pWin is NULL (= X window doesn't exist, shouldn't happen), or
(b) pWin->overrideRedirect is FALSE

i.e. the intended effect is "don't give focus to override redirect windows"

There seem to be some cases where this still isn't quite correct: A
reproduction isn't known, but it seems to be related to minimizing a
maximized Windows window, and having window activation move to a
maximized X window beneath it.

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/736>
This commit is contained in:
Jon Turney
2026-03-15 13:46:59 +02:00
committed by Enrico Weigelt
parent 0adc6ff90f
commit 0decf12c56
1 changed files with 10 additions and 15 deletions
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25
hw/xwin/winmultiwindowwndproc.c
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@@ -799,6 +799,16 @@ winTopLevelWindowProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
/* Add the keyboard hook if possible */
if (g_fKeyboardHookLL)
g_fKeyboardHookLL = winInstallKeyboardHookLL();
/* Tell our Window Manager thread to activate the window */
if (fWMMsgInitialized)
{
wmMsg.msg = WM_WM_ACTIVATE;
/* don't focus override redirect windows (e.g. menus) */
if (!pWin || !pWin->overrideRedirect)
winSendMessageToWM(s_pScreenPriv->pWMInfo, &wmMsg);
}
return 0;
case WM_KILLFOCUS:
@@ -898,21 +908,6 @@ winTopLevelWindowProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
/* Pass the message to the root window */
SendMessage(hwndScreen, message, wParam, lParam);
if (LOWORD(wParam) != WA_INACTIVE) {
/* Raise the window to the top in Z order */
/* ago: Activate does not mean putting it to front! */
/*
wmMsg.msg = WM_WM_RAISE;
if (fWMMsgInitialized)
winSendMessageToWM (s_pScreenPriv->pWMInfo, &wmMsg);
*/
/* Tell our Window Manager thread to activate the window */
wmMsg.msg = WM_WM_ACTIVATE;
if (fWMMsgInitialized)
if (!pWin || !pWin->overrideRedirect) /* for OOo menus */
winSendMessageToWM(s_pScreenPriv->pWMInfo, &wmMsg);
}
/* Prevent the mouse wheel from stalling when another window is minimized */
if (HIWORD(wParam) == 0 && LOWORD(wParam) == WA_ACTIVE &&
(HWND) lParam != NULL && (HWND) lParam != GetParent(hwnd))