Caph

Class: Looper

Looper

new Looper()

A class requests callback function before the browser performs the next frame repaint.

Since:
  • 2.0.0
Example
var Looper = caph.require('util.Looper').getInstance();

 var update = function() {
    console.debug('update call');
    Looper.off(update);
 }

 Looper.on(update);

Methods

off(subscriber)

Removes given function from Looper in order to stop it before the next frame is drawn.

Parameters:
Name Type Description
subscriber function

A callback function to remove from Looper.
Since:
  • 2.0.0
Example
var Looper = caph.require('util.Looper').getInstance();

 var update = function() {

    console.debug('update call');

    // Update function is called once.
    Looper.off(update);
 }

 Looper.on(update);

on(subscriber)

Calls given function when the next frame is drawn.

Parameters:
Name Type Description
subscriber function

A callback function to call when the next frame is repainted.
Since:
  • 2.0.0
Example
var Looper = caph.require('util.Looper').getInstance();

 var update = function() {
    console.debug('update call');
 }

 Looper.on(update);