window.addEventListener("load", function() { listener.init(); }, false);

var listener = {
  
  fileOut : "",
  filePath : "/home/omar/6s_list.xml",

  init: function() {
	var appcontent = document.getElementById("appcontent");   // browser
	if(appcontent)
		appcontent.addEventListener("DOMContentLoaded", this.onPageLoad, true);
  },
   
  writeVisit  : function(string) {
	wr=FileIO.write(this.fileOut, "<site><url>"+string+"</url></site>");
  },

  onPageLoad: function(aEvent) {
	var doc = aEvent.originalTarget; 
	this.fileOut = FileIO.open('/home/omar/6s_list.xml');
  	this.writeVisit("reddit.com");
  },

  open: function() {
  	wr=FileIO.write(this.fileOut,"<?xml version=\"1.0\" encoding=\"UTF-8\"?><sixstarts>");
  },

  writeLine: function(string) {
	wr=FileIO.write(this.fileOut,string);
  },

  close: function() {
	wr=FileIO.write(this.fileOut, "</sixstarts>");
	wr=FileIO.unlink(this.fileOut);
	alert("unlinked: "+wr);
  }


}

/* No need to modify past this line, as it's all worked out in the javascript IO library. */

var FileIO = {
		localfileCID  : '@mozilla.org/file/local;1',
		localfileIID  : Components.interfaces.nsILocalFile,

		finstreamCID  : '@mozilla.org/network/file-input-stream;1',
		finstreamIID  : Components.interfaces.nsIFileInputStream,

		foutstreamCID : '@mozilla.org/network/file-output-stream;1',
		foutstreamIID : Components.interfaces.nsIFileOutputStream,

		sinstreamCID  : '@mozilla.org/scriptableinputstream;1',
		sinstreamIID  : Components.interfaces.nsIScriptableInputStream,

		suniconvCID   : '@mozilla.org/intl/scriptableunicodeconverter',
		suniconvIID   : Components.interfaces.nsIScriptableUnicodeConverter,

		open   : function(path) {
			try {
				var file = Components.classes[this.localfileCID]
								.createInstance(this.localfileIID);
				file.initWithPath(path);
				return file;
			}
			catch(e) {
				return false;
			}
		},

		read   : function(file, charset) {
			try {
				var data     = new String();
				var fiStream = Components.classes[this.finstreamCID]
									.createInstance(this.finstreamIID);
				var siStream = Components.classes[this.sinstreamCID]
									.createInstance(this.sinstreamIID);
				fiStream.init(file, 1, 0, false);
				siStream.init(fiStream);
				data += siStream.read(-1);
				siStream.close();
				fiStream.close();
				if (charset) {
					data = this.toUnicode(charset, data);
				}
				return data;
			} 
			catch(e) {
				return false;
			}
		},

		write  : function(file, data, mode, charset) {
			try {
				var foStream = Components.classes[this.foutstreamCID]
									.createInstance(this.foutstreamIID);
				if (charset) {
					data = this.fromUnicode(charset, data);
				}
				var flags = 0x02 | 0x08 | 0x20; // wronly | create | truncate
				if (mode == 'a') {
					flags = 0x02 | 0x10; // wronly | append
				}
				foStream.init(file, flags, 0664, 0);
				foStream.write(data, data.length);
				// foStream.flush();
				foStream.close();
				return true;
			}
			catch(e) {
				return false;
			}
		},

		create : function(file) {
			try {
				file.create(0x00, 0664);
				return true;
			}
			catch(e) {
				return false;
			}
		},

		unlink : function(file) {
			try {
				file.remove(false);
				return true;
			}
			catch(e) {
				return false;
			}
		},

		path   : function(file) {
			try {
				return 'file:///' + file.path.replace(/\\/g, '\/')
							.replace(/^\s*\/?/, '').replace(/\ /g, '%20');
			}
			catch(e) {
				return false;
			}
		},

		toUnicode   : function(charset, data) {
			try{
				var uniConv = Components.classes[this.suniconvCID]
									.createInstance(this.suniconvIID);
				uniConv.charset = charset;
				data = uniConv.ConvertToUnicode(data);
			} 
			catch(e) {
				// foobar!
			}
			return data;
		},

		fromUnicode : function(charset, data) {
			try {
				var uniConv = Components.classes[this.suniconvCID]
									.createInstance(this.suniconvIID);
				uniConv.charset = charset;
				data = uniConv.ConvertFromUnicode(data);
				// data += uniConv.Finish();
			}
			catch(e) {
				// foobar!
			}
			return data;
		}

	}