int BC_WindowBase::grab(BC_WindowBase *window)
{
- if( window->active_grab && this != window->active_grab ) return 0;
- window->active_grab = this;
- this->grab_active = window;
- return 1;
+ int ret = 1;
+ if( window->active_grab ) {
+ int locked = get_window_lock();
+ if( locked ) unlock_window();
+ BC_WindowBase *active_grab = window->active_grab;
+ active_grab->lock_window("BC_WindowBase::grab(BC_WindowBase");
+ ret = active_grab->handle_ungrab();
+ active_grab->unlock_window();
+ if( locked ) lock_window("BC_WindowBase::grab(BC_WindowBase");
+ }
+ if( ret ) {
+ window->active_grab = this;
+ this->grab_active = window;
+ }
+ return ret;
}
int BC_WindowBase::ungrab(BC_WindowBase *window)
{
- if( window->active_grab && this != window->active_grab ) return 0;
+ if( this != window->active_grab ) return 0;
window->active_grab = 0;
this->grab_active = 0;
return 1;