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React to WM_NCACTIVATE instead of WM_SETFOCUS or WM_ACTIVATE for focus changes 

See https://github.com/libsdl-org/SDL/pull/4293 and https://github.com/libsdl-org/SDL/issues/4450 for details
This commit is contained in:
Sam Lantinga 2021-10-05 14:08:36 -07:00
parent ab7910facf
commit c542de9213
1 changed files with 54 additions and 48 deletions
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102
src/video/windows/SDL_windowsevents.c
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@ -369,6 +369,54 @@ WIN_CheckAsyncMouseRelease(SDL_WindowData *data)
data->mouse_button_flags = 0;
}
static void
WIN_UpdateFocus(SDL_Window *window)
{
SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
HWND hwnd = data->hwnd;
if (GetForegroundWindow() == hwnd) {
POINT cursorPos;
if (SDL_GetKeyboardFocus() != window) {
SDL_SetKeyboardFocus(window);
}
GetCursorPos(&cursorPos);
ScreenToClient(hwnd, &cursorPos);
SDL_SendMouseMotion(window, 0, 0, cursorPos.x, cursorPos.y);
WIN_CheckAsyncMouseRelease(data);
WIN_UpdateClipCursor(window);
/*
* FIXME: Update keyboard state
*/
WIN_CheckClipboardUpdate(data->videodata);
SDL_ToggleModState(KMOD_CAPS, (GetKeyState(VK_CAPITAL) & 0x0001) != 0);
SDL_ToggleModState(KMOD_NUM, (GetKeyState(VK_NUMLOCK) & 0x0001) != 0);
SDL_ToggleModState(KMOD_SCROLL, (GetKeyState(VK_SCROLL) & 0x0001) != 0);
} else {
RECT rect;
data->in_window_deactivation = SDL_TRUE;
if (SDL_GetKeyboardFocus() == window) {
SDL_SetKeyboardFocus(NULL);
WIN_ResetDeadKeys();
}
if (GetClipCursor(&rect) && SDL_memcmp(&rect, &data->cursor_clipped_rect, sizeof(rect)) == 0) {
ClipCursor(NULL);
SDL_zero(data->cursor_clipped_rect);
}
data->in_window_deactivation = SDL_FALSE;
}
}
static BOOL
WIN_ConvertUTF32toUTF8(UINT32 codepoint, char * text)
{
@ -658,6 +706,11 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
/* Don't immediately clip the cursor in case we're clicking minimize/maximize buttons */
data->skip_update_clipcursor = SDL_TRUE;
/* Update the focus here, since it's possible to get WM_ACTIVATE and WM_SETFOCUS without
actually being the foreground window, but this appears to get called in all cases where
the global foreground window changes to and from this window. */
WIN_UpdateFocus(data->window);
}
break;
@ -687,59 +740,12 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
}
SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_SHOWN, 0, 0);
}
}
returnCode = 0;
break;
case WM_SETFOCUS:
{
POINT cursorPos;
if (SDL_GetKeyboardFocus() != data->window) {
SDL_SetKeyboardFocus(data->window);
}
GetCursorPos(&cursorPos);
ScreenToClient(hwnd, &cursorPos);
SDL_SendMouseMotion(data->window, 0, 0, cursorPos.x, cursorPos.y);
WIN_CheckAsyncMouseRelease(data);
WIN_UpdateClipCursor(data->window);
/*
* FIXME: Update keyboard state
*/
WIN_CheckClipboardUpdate(data->videodata);
SDL_ToggleModState(KMOD_CAPS, (GetKeyState(VK_CAPITAL) & 0x0001) != 0);
SDL_ToggleModState(KMOD_NUM, (GetKeyState(VK_NUMLOCK) & 0x0001) != 0);
SDL_ToggleModState(KMOD_SCROLL, (GetKeyState(VK_SCROLL) & 0x0001) != 0);
}
returnCode = 0;
break;
case WM_KILLFOCUS:
{
RECT rect;
data->in_window_deactivation = SDL_TRUE;
if (SDL_GetKeyboardFocus() == data->window) {
SDL_SetKeyboardFocus(NULL);
WIN_ResetDeadKeys();
}
if (GetClipCursor(&rect) && SDL_memcmp(&rect, &data->cursor_clipped_rect, sizeof(rect)) == 0) {
ClipCursor(NULL);
SDL_zero(data->cursor_clipped_rect);
}
data->in_window_deactivation = SDL_FALSE;
}
returnCode = 0;
break;
case WM_POINTERUPDATE:
{
data->last_pointer_update = lParam;