Mutter always unminimizes windows when handling map requests. So a window could be in normal state as far as Mutter concerns while Wine mistakenly considers it still minimized.
Fix Disgaea PC black screen after Alt+Tab in fullscreen mode.
Also see https://gitlab.gnome.org/GNOME/mutter/-/blob/main/src/x11/events.c#L1525 for how map requests are handled.
Signed-off-by: Zhiyi Zhang zzhang@codeweavers.com --- dlls/user32/tests/win.c | 1 - dlls/winex11.drv/window.c | 11 +++++++++++ 2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/dlls/user32/tests/win.c b/dlls/user32/tests/win.c index f47fcd2fe65..a7c2dc47f9a 100644 --- a/dlls/user32/tests/win.c +++ b/dlls/user32/tests/win.c @@ -7714,7 +7714,6 @@ static void test_ShowWindow(void) /* The window rectangle of hwndMain is (100, 100, 300, 300). If the window manager unminimizes * hwnd, hwnd will end up obscuring hwndMain. Mutter is such a window manager that unminimizes * windows when handling map requests and thus can demonstrate this bug */ - todo_wine_if(color != 0xffffff) ok(color == 0xffffff, "Expected color %#x, got %#x.\n", 0xffffff, color); ReleaseDC(0, hdc); DestroyWindow(hwnd); diff --git a/dlls/winex11.drv/window.c b/dlls/winex11.drv/window.c index 36fb41ac710..7ccb139ba5d 100644 --- a/dlls/winex11.drv/window.c +++ b/dlls/winex11.drv/window.c @@ -1129,6 +1129,9 @@ static void map_window( HWND hwnd, DWORD new_style ) update_net_wm_states( data ); sync_window_style( data ); XMapWindow( data->display, data->whole_window ); + /* Mutter always unminimizes windows when handling map requests. Restore iconic state */ + if (new_style & WS_MINIMIZE) + XIconifyWindow( data->display, data->whole_window, data->vis.screen ); XFlush( data->display ); if (data->surface && data->vis.visualid != default_visual.visualid) data->surface->funcs->flush( data->surface ); @@ -2528,9 +2531,17 @@ void CDECL X11DRV_WindowPosChanged( HWND hwnd, HWND insert_after, UINT swp_flags data->iconic = (new_style & WS_MINIMIZE) != 0; TRACE( "changing win %p iconic state to %u\n", data->hwnd, data->iconic ); if (data->iconic) + { XIconifyWindow( data->display, data->whole_window, data->vis.screen ); + } else if (is_window_rect_mapped( rectWindow )) + { + /* whole_window could be both iconic and mapped. Since XMapWindow() doesn't do + * anything if the window is already mapped, we need to unmap it first */ + if (data->mapped) + XUnmapWindow( data->display, data->whole_window ); XMapWindow( data->display, data->whole_window ); + } update_net_wm_states( data ); } else