diff options
Diffstat (limited to 'src/xine-engine/events.c')
-rw-r--r-- | src/xine-engine/events.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/xine-engine/events.c b/src/xine-engine/events.c new file mode 100644 index 000000000..f2774168a --- /dev/null +++ b/src/xine-engine/events.c @@ -0,0 +1,82 @@ +/* + * Copyright (C) 2000-2001 the xine project + * + * This file is part of xine, a unix video player. + * + * xine is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * xine is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + * $Id: + * + * Event handling functions + * + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "xine_internal.h" + +int xine_register_event_listener(xine_t *this, event_listener_t *listener) { + /* Ensure the listener is non-NULL */ + if(listener == NULL) { + return 0; + } + + /* Check we hava a slot free */ + if(this->num_event_listeners < XINE_MAX_EVENT_LISTENERS) { + this->event_listeners[this->num_event_listeners++] = listener; + return 1; + } + + return 0; +} + +void xine_send_event(xine_t *this, event_t *event, void *data) { + uint16_t i; + + /* Itterate through all event handlers */ + for(i=0; i < this->num_event_listeners; i++) { + (this->event_listeners[i]) (this, event, data); + } +} + +int xine_remove_event_listener(xine_t *this, event_listener_t *listener) { + uint16_t i, found; + + found = 1; i = 0; + + /* Attempt to find the listener */ + while((found == 1) && (i < this->num_event_listeners)) { + if(this->event_listeners[i] == listener) { + /* Set found flag */ + found = 0; + + this->event_listeners[i] = NULL; + + /* If possible, move the last listener to the hole thats left */ + if(this->num_event_listeners > 1) { + this->event_listeners[i] = this->event_listeners[this->num_event_listeners - 1]; + this->event_listeners[this->num_event_listeners - 1] = NULL; + } + + this->num_event_listeners --; + } + + i++; + } + + return found; +} |