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Revision 90, 4.3 kB
(checked in by jeroen, 13 months ago)
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tagged 4.2 mediaplayer and 1.0 desktopplayer and removed 4.2 branch
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Property svn:executable set to
*
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| 1 | //==============================================================================
// jwPlaylist Class 1.0:
// reads XML playlists and returns array of (title,file,url) rows.
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| 2 | // used by mp3player, flvplayer and jpgrotator.
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| 3 | // currently supporting RSS and XSPF formats
//==============================================================================
// system class for event dispatching
import mx.events.EventDispatcher;
class jwPlaylist {
// location of the xml file to parse
private var playlistFile:String;
// flash XML object
private var playlistXML:XML;
// playlist array
private var playlistArray:Array;
// eventdispatcher functions
function dispatchEvent() {};
function addEventListener() {};
function removeEventListener() {};
// class constructor, not much going on
function jwPlaylist() {
mx.events.EventDispatcher.initialize(this);
};
// setup parsing the XML
public function readPlaylist(plf:String){
// get new playlist url if provided
playlistFile = plf;
// initializing the XML object
playlistXML = new XML();
playlistXML.ignoreWhite = true;
playlistXML['parent'] = this;
// function that substracts the needed data from XML
playlistXML.onLoad = function(success:Boolean) {
if(success) {
// check playlist format
var format = this.firstChild.nodeName.toLowerCase();
// if RSS, start RSS structure parser
if( format == 'rss') {
var done = this.parent.parseRSS();
// if playlist, start XSPF structure parser
} else if (format == 'playlist') {
var done = this.parent.parseXSPF();
} else {
// return error if format determination failed
this.parent.playlistArray = new Array({title:"wrong playlist format",file:"",link:""});
}
} else {
// return error if loading failed
this.parent.playlistArray = new Array({title:"playlist not found",file:"",link:""});
}
// delete XML object and return the array
this.parent.eventObject = {target:this.parent, type:'read'};
this.parent.eventObject.playlist = this.parent.playlistArray;
this.parent.dispatchEvent(this.parent.eventObject);
delete this.parent.playlistXML;
};
// start loading XML from file
playlistXML.load(playlistFile);
};
//==============================================================================
// data structure parsers from here
// add a parser to add your xml scheme
//==============================================================================
// parse RSS data structure
private function parseRSS() {
playlistArray = new Array();
var itm = playlistXML.firstChild.firstChild.firstChild;
while(itm != null) {
if (itm.nodeName == 'item') {
var itc = itm.firstChild;
var tit = '';
var enc = '';
var lnk = '';
while (itc != null) {
if(itc.nodeName == 'title') {
tit = itc.firstChild.nodeValue;
} else if (itc.nodeName == 'enclosure') {
enc = unescape(itc.attributes.url);
} else if (itc.nodeName == 'link') {
lnk = itc.firstChild.nodeValue;
}
itc = itc.nextSibling;
}
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| 4 | if(enc != null) {
playlistArray.push({title:tit,file:enc,link:lnk});
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| 5 | }
}
itm = itm.nextSibling;
}
};
// parse XSPF data structure
private function parseXSPF() {
playlistArray = new Array();
var tl = playlistXML.firstChild.firstChild;
while(tl != null) {
if (tl.nodeName == 'trackList') {
var tck = tl.firstChild;
while(tck != null) {
var tc = tck.firstChild;
var ann = "";
var loc = "";
var inf = "";
var img = "";
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| 6 | var ide = "";
while (tc != null) {
if(tc.nodeName == 'annotation') {
ann = tc.firstChild.nodeValue;
} else if (tc.nodeName == 'location') {
loc = unescape(tc.firstChild.nodeValue);
} else if (tc.nodeName == 'info') {
inf = tc.firstChild.nodeValue;
} else if (tc.nodeName == 'image') {
img = tc.firstChild.nodeValue;
} else if (tc.nodeName == 'identifier') {
ide = tc.firstChild.nodeValue;
}
tc = tc.nextSibling;
}
playlistArray.push({title:ann,file:loc,link:inf,image:img,identifier:ide});
tck = tck.nextSibling;
}
}
tl = tl.nextSibling;
}
};
} |
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