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x11: Resize fixed-size windows after mapping on xmonad

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XMonad ignores size hints and shrinks the client area to overlay borders on fixed-size windows, even if no borders were requested, resulting in the window client area being smaller than requested. Calling XResizeWindow after mapping seems to fix it, even though resizing fixed-size windows in this manner doesn't work on any other window manager.

(cherry picked from commit 45eb6310a8)
This commit is contained in:
Frank Praznik
2025-06-06 11:08:05 -04:00
parent 6b56ff7a97
commit e2d0fe3e2f
1 changed files with 26 additions and 0 deletions
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26
src/video/x11/SDL_x11window.c
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@@ -86,6 +86,23 @@ static Bool X11_XIfEventTimeout(Display *display, XEvent *event_return, Bool (*p
}
*/
static bool X11_CheckCurrentDesktop(const char *name)
{
SDL_Environment *env = SDL_GetEnvironment();
const char *desktopVar = SDL_GetEnvironmentVariable(env, "DESKTOP_SESSION");
if (desktopVar && SDL_strcasecmp(desktopVar, name) == 0) {
return true;
}
desktopVar = SDL_GetEnvironmentVariable(env, "XDG_CURRENT_DESKTOP");
if (desktopVar && SDL_strcasestr(desktopVar, name)) {
return true;
}
return false;
}
static bool X11_IsWindowMapped(SDL_VideoDevice *_this, SDL_Window *window)
{
SDL_WindowData *data = window->internal;
@@ -1566,6 +1583,15 @@ void X11_ShowWindow(SDL_VideoDevice *_this, SDL_Window *window)
X11_XMoveWindow(display, data->xwindow, x, y);
}
/* XMonad ignores size hints and shrinks the client area to overlay borders on fixed-size windows,
* even if no borders were requested, resulting in the window client area being smaller than
* requested. Calling XResizeWindow after mapping seems to fix it, even though resizing fixed-size
* windows in this manner doesn't work on any other window manager.
*/
if (!(window->flags & SDL_WINDOW_RESIZABLE) && X11_CheckCurrentDesktop("xmonad")) {
X11_XResizeWindow(display, data->xwindow, window->w, window->h);
}
/* Some window managers can send garbage coordinates while mapping the window, so don't emit size and position
* events during the initial configure events.
*/