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ampache/lib/class/localplay.class.php

600 lines
14 KiB
PHP

<?php
/*
Copyright (c) 2001 - 2006 Ampache.org
All rights reserved.
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.
*/
class Localplay {
/* Base Variables */
var $type;
/* Built Variables */
var $_function_map = array();
var $_template;
var $_preferences = array();
var $_player;
/**
* Constructor
* This must be called with a localplay type, it then loads the config
* file for the specified type and attempts to load in the function
* map, the preferences and the template
*/
function Localplay($type) {
$this->type = $type;
$this->_get_info();
} // Localplay
/**
* _get_info
* This functions takes the type and attempts to get all the
* information needed to load it. Will log errors if there are
* any failures, fatal errors will actually return something to the
* gui
*/
function _get_info() {
$this->_load_player();
} // _get_info
/**
* _load_player
* This function attempts to load the player class that localplay
* Will interface with in order to make all this magical stuf work
* all LocalPlay modules should be located in /modules/<name>/<name>.class.php
*/
function _load_player() {
if (!$this->type) { return false; }
$filename = conf('prefix') . '/modules/localplay/' . $this->type . '.controller.php';
$include = require_once ($filename);
if (!$include) {
/* Throw Error Here */
debug_event('localplay','Unable to load ' . $this->type . ' controller','2');
return false;
} // include
else {
$class_name = "Ampache" . $this->type;
$this->_player = new $class_name();
$function_map = $this->_player->function_map();
$this->_map_functions($function_map);
}
} // _load_player
/**
* has_function
* This is used to check the function map and see if the current
* player type supports the indicated function.
*/
function has_function($function_name) {
/* Check the function map, if it's got a value it must
* be possible
*/
if (strlen($this->_function_map[$function_name]) > 0) { return true; }
return false;
} // has_function
/**
* format_name
* This function takes the track name and checks to see if 'skip'
* is supported in the current player, if so it returns a 'skip to'
* link, otherwise it returns just the text
*/
function format_name($name,$id) {
$name = scrub_out($name);
if ($this->has_function('skip')) {
$url = conf('ajax_url') . "?action=localplay&amp;cmd=skip&amp;value=$id" . conf('ajax_info');
$name = "<span style=\"cursor:pointer;text-decoration:underline;\" onclick=\"ajaxPut('$url');return true;\">$name</span>";
}
return $name;
} // format_name
/**
* _map_functions
* This takes the results from the loaded from the target player
* and maps them to the defined functions that Ampache currently
* supports, this is broken into require and optional componets
* Failure of required componets will cause log entry and gui
* warning. The value of the elements in the $data array should
* be function names that are called on the action in question
*/
function _map_functions($data) {
/* Required Functions */
$this->_function_map['add'] = $data['add'];
$this->_function_map['delete'] = $data['delete'];
$this->_function_map['play'] = $data['play'];
$this->_function_map['stop'] = $data['stop'];
$this->_function_map['get'] = $data['get'];
$this->_function_map['connect'] = $data['connect'];
$this->_function_map['status'] = $data['status'];
/* Recommended Functions */
$this->_function_map['pause'] = $data['pause'];
$this->_function_map['next'] = $data['next'];
$this->_function_map['prev'] = $data['prev'];
$this->_function_map['skip'] = $data['skip'];
$this->_function_map['get_playlist'] = $data['get_playlist'];
$this->_function_map['get_playing'] = $data['get_playing'];
$this->_function_map['repeat'] = $data['repeat'];
$this->_function_map['random'] = $data['random'];
$this->_function_map['loop'] = $data['loop'];
/* Optional Functions */
$this->_function_map['volume_set'] = $data['volume_set'];
$this->_function_map['volume_up'] = $data['volume_up'];
$this->_function_map['volume_down'] = $data['volume_down'];
$this->_function_map['delete_all'] = $data['delete_all'];
$this->_function_map['randomize'] = $data['randomize'];
$this->_function_map['move'] = $data['move'];
$this->_function_map['add_url'] = $data['add_url'];
} // _map_functions
/**
* connect
* This function attempts to connect to the localplay
* player that we are using
*/
function connect() {
$function = $this->_function_map['connect'];
/* This is very bad, that means they don't even
* have a connection function defined
*/
if (!$function) { return false; }
if (!$this->_player->$function()) {
debug_event('localplay','Error Unable to connect, check ' . $this->type . ' controller','1');
return false;
}
return true;
} // connect
/**
* play
* This function passes NULL and calls the play function of the player
* object
*/
function play() {
$function = $this->_function_map['play'];
if (!$this->_player->$function()) {
debug_event('localplay','Error Unable to start playback, check ' . $this->type . ' controller','1');
return false;
}
return true;
} // play
/**
* stop
* This functions passes NULl and calls the stop function of the player
* object, it should recieve a true/false boolean value
*/
function stop() {
$function = $this->_function_map['stop'];
if (!$this->_player->$function()) {
debug_event('localplay','Error Unable to stop playback, check ' . $this->type . ' controller','1');
return false;
}
return true;
} // stop
/**
* add
* This function takes an array of song_ids and then passes the full URL
* to the player, this is a required function.
*/
function add($songs) {
/* Call the Function Specified in the Function Map */
$function = $this->_function_map['add'];
if (!$this->_player->$function($songs)) {
debug_event('localplay','Error Unable to add songs, check ' . $this->type . ' controller','1');
return false;
}
return true;
} // add
/**
* add_url
* This directly adds an array of URLs to the localplay module. This is really how I should
* have done add, will migrate to this eventually
*/
function add_url($urls) {
$function = $this->_function_map['add_url'];
if (!$this->_player->$function($urls)) {
debug_event('localplay','Error Unable to add urls, check ' . $this->type . ' controller','1');
return false;
}
return true;
} // add_url
/**
* repeat
* This turns the repeat feature of a localplay method on or
* off, takes a 0/1 value
*/
function repeat($state) {
$function = $this->_function_map['repeat'];
$data = $this->_player->$function($state);
if (!$data) {
debug_event('localplay',"Error Unable to set Repeat to $state",'1');
}
return $data;
} // repeat
/**
* random
* This turns on the random feature of a localplay method
* It takes a 0/1 value
*/
function random($state) {
$function = $this->_function_map['random'];
$data = $this->_player->$function($state);
if (!$data) {
debug_event('localplay',"Error Unable to set Random to $state",'1');
}
return $data;
} // random
/**
* status
* This returns current information about the state of the player
* There is an expected array format
*/
function status() {
$function = $this->_function_map['status'];
$data = $this->_player->$function();
if (!count($data)) {
debug_event('localplay','Error Unable to get status, check ' . $this->type . ' controller','1');
return false;
}
return $data;
} // status
/**
* get
* This calls the get function of the player and then returns
* the array of current songs for display or whatever
* an empty array is passed on failure
*/
function get() {
$function = $this->_function_map['get'];
$data = $this->_player->$function();
if (!count($data) OR !is_array($data)) {
debug_event('localplay','Error Unable to get song info, check ' . $this->type . ' controller','1');
return array();
}
return $data;
} // get
/**
* volume_set
* This isn't a required function, it sets the volume to a specified value
* as passed in the variable it is a 0 - 100 scale the controller is
* responsible for adjusting the scale if nessecary
*/
function volume_set($value) {
/* Make sure it's int and 0 - 100 */
$value = int($value);
/* Make sure that it's between 0 and 100 */
if ($value > 100 OR $value < 0) { return false; }
$function = $this->_function_map['volume_set'];
if (!$this->_player->$function($value)) {
debug_event('localplay','Error: Unable to set volume, check ' . $this->type . ' controller','1');
return false;
}
return true;
} // volume_set
/**
* volume_up
* This function isn't required. It tells the daemon to increase the volume
* by a pre-defined amount controlled by the controller
*/
function volume_up() {
$function = $this->_function_map['volume_up'];
if (!$this->_player->$function()) {
debug_event('localplay','Error: Unable to increase volume, check ' . $this->type . ' controller','1');
return false;
}
return true;
} // volume_up
/**
* volume_down
* This function isn't required. It tells the daemon to decrese the volume
* by a pre-defined amount controlled by the controller.
*/
function volume_down() {
$function = $this->_function_map['volume_down'];
if (!$this->_player->$function()) {
debug_event('localplay','Error: Unable to decrese volume, check ' . $this->type . ' controller','1');
return false;
}
return true;
} // volume_down
/**
* volume_mute
* This function isn't required, It tells the daemon to mute all output
* It's up to the controller to decide what that actually entails
*/
function volume_mute() {
$function = $this->_function_map['volume_mute'];
if (!$this->_player->$function()){
debug_event('localplay','Error: Unable to mute volume, check ' . $this->type . ' controller','1');
return false;
}
return true;
} // volume_mute
/**
* skip
* This isn't a required function, it tells the daemon to skip to the specified song
*/
function skip($song_id) {
$function = $this->_function_map['skip'];
if (!$this->_player->$function($song_id)) {
debug_event('localplay','Error: Unable to skip to next song, check ' . $this->type . ' controller','1');
return false;
}
return true;
} // skip
/**
* next
* This isn't a required function, it tells the daemon to go to the next
* song
*/
function next() {
$function = $this->_function_map['next'];
if (!$this->_player->$function()) {
debug_event('localplay','Error: Unable to skip to next song, check ' . $this->type . ' controller','1');
return false;
}
return true;
} // next
/**
* prev
* This isn't a required function, it tells the daemon to go the the previous
* song
*/
function prev() {
$function = $this->_function_map['prev'];
if (!$this->_player->$function()) {
debug_event('localplay','Error: Unable to skip to previous song, check ' . $this->type . ' controller','1');
return false;
}
return true;
} // prev
/**
* pause
* This isn't a required function, it tells the daemon to pause the
* song
*/
function pause() {
$function = $this->_function_map['pause'];
if (!$this->_player->$function()) {
debug_event('localplay','Error: Unable to pause song, check ' . $this->type . ' controller','1');
return false;
}
return true;
} // pause
/**
* get_preferences
* This functions returns an array of the preferences that the localplay
* controller needs in order to actually work
*/
function get_preferences() {
$preferences = $this->_player->preferences();
return $preferences;
} // get_preferences
/**
* delete
* This removes songs from the players playlist as defined get function
*/
function delete($songs) {
$function = $this->_function_map['delete'];
if (!$this->_player->$function($songs)) {
debug_event('localplay','Error: Unable to remove songs, check ' . $this->type . ' controller','1');
return false;
}
return true;
} // delete
/**
* delete_all
* This removes every song from the players playlist as defined by the delete_all function
* map
*/
function delete_all() {
$function = $this->_function_map['delete_all'];
if (!$this->_player->$function($songs)) {
debug_event('localplay','Error: Unable to delete entire playlist, check ' . $this->type . ' controller','1');
return false;
}
return true;
} // delete_all
/**
* get_user_state
* This function returns a user friendly version
* of the current player state
*/
function get_user_state($state) {
switch ($state) {
case 'play':
return _('Now Playing');
break;
case 'stop':
return _('Stopped');
break;
case 'pause':
return _('Paused');
break;
default:
return _('Unknown');
break;
} // switch on state
} // get_user_state
/**
* get_user_playing
* This attempts to return a nice user friendly
* currently playing string
*/
function get_user_playing() {
$status = $this->status();
/* Format the track name */
$track_name = $status['track_artist'] . ' - ' . $status['track_album'] . ' - ' . $status['track_title'];
/* This is a cheezball fix for when we were unable to find a
* artist/album (or one wasn't provided)
*/
$track_name = ltrim(ltrim($track_name,' - '),' - ');
$track_name = "[" . $status['track'] . "] - " . $track_name;
return $track_name;
} // get_user_playing
} //end localplay class
?>