/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- nautilus-sound.c: manage the sound playing process and other sound utilities Copyright (C) 1999, 2000 Eazel, Inc. This program 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. This program 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. Author: Andy Hertzfeld */ #include #include #include #include #include #include #include "nautilus-global-preferences.h" #include "nautilus-preferences.h" #include "nautilus-sound.h" static void kill_sound_if_necessary (void) { pid_t child; int status_result; pid_t sound_process; /* fetch the sound state */ sound_process = nautilus_preferences_get_enum (NAUTILUS_PREFERENCES_CURRENT_SOUND_STATE, 0); /* if there was a sound playing, kill it */ if (sound_process > 0) { kill (-sound_process, SIGTERM); child = waitpid (sound_process, &status_result, 0); } } /* initialize_sound is called at application start up time. It puts the sound system into a quiescent state */ void nautilus_sound_initialize (void) { nautilus_preferences_set_enum (NAUTILUS_PREFERENCES_CURRENT_SOUND_STATE, 0); } /* if there is a sound registered, kill it, and register the empty sound */ void nautilus_sound_kill_sound (void) { /* if there is a sound in progress, kill it */ kill_sound_if_necessary (); /* set the process state to quiescent */ nautilus_preferences_set_enum (NAUTILUS_PREFERENCES_CURRENT_SOUND_STATE, 0); } /* register a new sound process, including kill any old one if necessary */ void nautilus_sound_register_sound (pid_t sound_process) { /* if there is a sound in progress, kill it */ kill_sound_if_necessary (); /* record the new sound process ID */ nautilus_preferences_set_enum (NAUTILUS_PREFERENCES_CURRENT_SOUND_STATE, sound_process); } gboolean nautilus_sound_can_play_sound (void) { int open_result, sound_process; /* first see if there's already one in progress; if so, return true */ sound_process = nautilus_preferences_get_enum (NAUTILUS_PREFERENCES_CURRENT_SOUND_STATE, 0); if (sound_process > 0) { return TRUE; } open_result = esd_audio_open(); if (open_result < 0) { return FALSE; } esd_audio_close (); return TRUE; }