Last modified: 2013-2-27

Class JitterListener

JitterListener

Class Summary
Constructor Attributes	Constructor Name and Description
	JitterListener(object_name, callback) JitterListener objects take two arguments: the object that they “listen” to, and the function that will be called when the object triggers an event.

Field Summary
Field Attributes	Field Name and Description
Function	function The callback function to handle the event
JitterObject	object The object to listen to.
String	subjectname Unknown

Fields borrowed from class Maxobj:: background, canhilite, colorindex, fontface, fontname, fontsize, hidden, hint, ignoreclick, js, maxclass, nextobject, patcher, rect, selected, valid, varname

Methods borrowed from class JitterObject:: freepeer, getregisteredname
Methods borrowed from class Maxobj:: annotation, color, help, message, notify, subpatcher, understands

Class Detail

JitterListener

(object_name, callback)

JitterListener objects take two arguments: the object that they “listen” to, and the function that will be called when the object triggers an event. Our JitterListener object is set to listen to our jit.window object (mywindow). The getregisteredname() property of a JitterObject object returns the name by which that object can be accessed by the JitterListener (in the case of jit.window objects, this will be the same as name of the drawing context). Whenever our jit.window object generates an event, a function called thecallback() will be triggered in our JavaScript code. Now that we’ve instantiated a JitterListener, we can (in most cases) leave it alone and simply deal with the mechanics of the callback function it triggers in response to an event from the object it listens to.

possible events depending on type of listened JitterObject

mouse
mouseidle
mouseidleout
mousewheel
matrix_received
message_received
connected_notification
import
collisions
matrixoutput
swap

Example:

//create jit.net.recv object
var recvr = new JitterObject("jit.net.recv");

//create listener and bind to recvr
var mylistener = new JitterListener(recvr.getregisteredname(),callbackfun);

function callbackfun(event){
	if (event.eventname == "matrix_received")
		matrixoutput(event.args[0]);
	else if (event.eventname == "message_received")
		messageoutput(event.args[0]);
	else if (event.eventname == "connected_notification")
		connectedoutput();
}
callbackfun.local = 1;

Parameters:
{String} object_name
{Function} callback

Field Detail

{Function}

function

The callback function to handle the event

{JitterObject}

object

The object to listen to.

{String}

subjectname

Unknown

Classes

Max/MSP Jitter Javascript Reference

Class JitterListener

JitterListener

function

object

subjectname