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wayland: Never commit with an undefined window title

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If libdecor performs a commit with the frame title being undefined, a crash can occur within the library or its plugins. Always ensure that the title is set to a valid string to avoid this.
This commit is contained in:
Frank Praznik 2022-08-17 14:59:23 -04:00 committed by Sam Lantinga
parent 99e9156ff5
commit 7da74eb5be
1 changed files with 10 additions and 11 deletions
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21
src/video/wayland/SDL_waylandwindow.c
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@ -2069,26 +2069,25 @@ void Wayland_SetWindowTitle(_THIS, SDL_Window * window)
{
SDL_WindowData *wind = window->driverdata;
SDL_VideoData *viddata = _this->driverdata;
const char *title = window->title ? window->title : "";
if (WINDOW_IS_XDG_POPUP(window)) {
return;
}
if (window->title != NULL) {
#ifdef HAVE_LIBDECOR_H
if (WINDOW_IS_LIBDECOR(viddata, window)) {
if (wind->shell_surface.libdecor.frame == NULL) {
return; /* Can't do anything yet, wait for ShowWindow */
}
libdecor_frame_set_title(wind->shell_surface.libdecor.frame, window->title);
} else
if (WINDOW_IS_LIBDECOR(viddata, window)) {
if (wind->shell_surface.libdecor.frame == NULL) {
return; /* Can't do anything yet, wait for ShowWindow */
}
libdecor_frame_set_title(wind->shell_surface.libdecor.frame, title);
} else
#endif
if (viddata->shell.xdg) {
if (wind->shell_surface.xdg.roleobj.toplevel == NULL) {
return; /* Can't do anything yet, wait for ShowWindow */
}
xdg_toplevel_set_title(wind->shell_surface.xdg.roleobj.toplevel, window->title);
if (wind->shell_surface.xdg.roleobj.toplevel == NULL) {
return; /* Can't do anything yet, wait for ShowWindow */
}
xdg_toplevel_set_title(wind->shell_surface.xdg.roleobj.toplevel, title);
}
WAYLAND_wl_display_flush(viddata->display);