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Don't report windows being maximized when fullscreen on X11 

This is a functional state for some window managers (tested using stock Ubuntu 22.04.1), and removing that state, e.g. using SDL_RestoreWindow(), results in a window centered and floating, and not visually covering the rest of the desktop.
This commit is contained in:
Sam Lantinga 2022-10-29 09:21:17 -07:00
parent b9e1d1b4de
commit ab06a307dc
3 changed files with 29 additions and 7 deletions
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2
src/video/x11/SDL_x11events.c
View File

@ -1460,7 +1460,7 @@ X11_DispatchEvent(_THIS, XEvent *xevent)
without ever mapping / unmapping them, so we handle that here,
because they use the NETWM protocol to notify us of changes.
*/
const Uint32 flags = X11_GetNetWMState(_this, xevent->xproperty.window);
const Uint32 flags = X11_GetNetWMState(_this, data->window, xevent->xproperty.window);
const Uint32 changed = flags ^ data->window->flags;
if ((changed & SDL_WINDOW_HIDDEN) || (changed & SDL_WINDOW_FULLSCREEN)) {

32
src/video/x11/SDL_x11window.c
View File

@ -173,7 +173,7 @@ X11_SetNetWMState(_THIS, Window xwindow, Uint32 flags)
}
Uint32
X11_GetNetWMState(_THIS, Window xwindow)
X11_GetNetWMState(_THIS, SDL_Window *window, Window xwindow)
{
SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;
Display *display = videodata->display;
@ -211,14 +211,28 @@ X11_GetNetWMState(_THIS, Window xwindow)
fullscreen = 1;
}
}
if (maximized == 3) {
flags |= SDL_WINDOW_MAXIMIZED;
}
if (fullscreen == 1) {
flags |= SDL_WINDOW_FULLSCREEN;
}
if (maximized == 3) {
/* Fullscreen windows are maximized on some window managers,
and this is functional behavior - if maximized is removed,
the windows remain floating centered and not covering the
rest of the desktop. So we just won't change the maximize
state for fullscreen windows here, otherwise SDL would think
we're always maximized when fullscreen and not restore the
correct state when leaving fullscreen.
*/
if (fullscreen) {
flags |= (window->flags & SDL_WINDOW_MAXIMIZED);
} else {
flags |= SDL_WINDOW_MAXIMIZED;
}
}
/* If the window is unmapped, numItems will be zero and _NET_WM_STATE_HIDDEN
* will not be set. Do an additional check to see if the window is unmapped
* and mark it as SDL_WINDOW_HIDDEN if it is.
@ -306,7 +320,7 @@ SetupWindowData(_THIS, SDL_Window * window, Window w, BOOL created)
data->colormap = attrib.colormap;
}
window->flags |= X11_GetNetWMState(_this, w);
window->flags |= X11_GetNetWMState(_this, window, w);
{
Window FocalWindow;
@ -1252,6 +1266,14 @@ SetWindowMaximized(_THIS, SDL_Window * window, SDL_bool maximized)
window->flags |= SDL_WINDOW_MAXIMIZED;
} else {
window->flags &= ~SDL_WINDOW_MAXIMIZED;
if ((window->flags & SDL_WINDOW_FULLSCREEN) != 0) {
/* Fullscreen windows are maximized on some window managers,
and this is functional behavior, so don't remove that state
now, we'll take care of it when we leave fullscreen mode.
*/
return;
}
}
if (X11_IsWindowMapped(_this, window)) {

2
src/video/x11/SDL_x11window.h
View File

@ -81,7 +81,7 @@ typedef struct
} SDL_WindowData;
extern void X11_SetNetWMState(_THIS, Window xwindow, Uint32 flags);
extern Uint32 X11_GetNetWMState(_THIS, Window xwindow);
extern Uint32 X11_GetNetWMState(_THIS, SDL_Window *window, Window xwindow);
extern int X11_CreateWindow(_THIS, SDL_Window * window);
extern int X11_CreateWindowFrom(_THIS, SDL_Window * window, const void *data);