fake-dom.js

// Processing works with a canvas and the DOM, fake it.
// This is enough of the DOM to allow the parser work.

var __empty_func__ = function () {};
var __elem_func__ = function() { return elem };

var navigator = { useragent: true };

var canvas = {
  setAttribute: __empty_func__,
  attachEvent: __empty_func__,
  addEventListener: __empty_func__,
  appendChild: __elem_func__,
  removeChild: __empty_func__,
  toDataURL: __empty_func__,
  localName: "canvas",
  getContext:  function() {
                 return {
                   translate: __empty_func__,
                   attachEvent: __empty_func__,
                   fillRect: __empty_func__,
                   fillText: __empty_func__,
                   measureText: function() { return 1; },
                   clearRect: __empty_func__,
                   beginPath: __empty_func__,
                   moveTo: __empty_func__,
                   lineTo: __empty_func__,
                   rect: __empty_func__,
                   save: __empty_func__,
                   stroke: __empty_func__,
                   fill: __empty_func__,
                   rotate: __empty_func__,
                   closePath: __empty_func__,
                   arc: __empty_func__,
                   scale: __empty_func__,
                   restore: __empty_func__,
                   bezierCurveTo: __empty_func__,
                   viewport: __empty_func__,
                   clearColor: __empty_func__,
                   clear: __empty_func__,
                   enable: __empty_func__,
                   createShader: __empty_func__,
                   shaderSource: __empty_func__,
                   compileShader: __empty_func__,
                   getShaderParameter: function() { return true; },
                   getShaderInfoLog: __empty_func__,
                   createProgram: __empty_func__,
                   attachShader: __empty_func__,
                   linkProgram: __empty_func__,
                   getProgramParameter: function() { return true; },
                   useProgram: __empty_func__,
                   createBuffer: __empty_func__,
                   bindBuffer: __empty_func__,
                   bufferData: __empty_func__,
                   blendFunc: __empty_func__,
                   getAttribLocation: __empty_func__,
                   vertexAttribPointer: __empty_func__,
                   enableVertexAttribArray: __empty_func__,
                   getUniformLocation: __empty_func__,
                   uniform1f: __empty_func__,
                   uniform2f: __empty_func__,
                   uniform3f: __empty_func__,
                   uniform4f: __empty_func__,
                   uniformfv: __empty_func__,
                   uniform2fv: __empty_func__,
                   uniform3fv: __empty_func__,
                   uniform1i: __empty_func__,
                   uniform2i: __empty_func__,
                   uniform3i: __empty_func__,
                   uniform4i: __empty_func__,
                   getImageData: function() { return {width:1, height: 1, data:[1,2,3,4]}; },
                   createImageData: function() { return {width:1, height: 1, data:[1,2,3,4]}; },
                   drawImage: __empty_func__,
                   putImageData: __empty_func__,
                   lineWidth: __empty_func__,
                   disable: __empty_func__,
                   drawArrays: __empty_func__,
                   polygonOffset: __empty_func__,
                   createTexture: __empty_func__,
                   texImage2D: __empty_func__,
                   texParameteri: __empty_func__,
                   generateMipmap: __empty_func__,
                   uniformMatrix4fv: __empty_func__,
                   uniform4fv: __empty_func__,
                   disableVertexAttribArray: __empty_func__,
                   bindTexture: __empty_func__
                 };
  },
  style: {
    setProperty: __empty_func__
  }
};
 
var HTMLImageElement = __empty_func__;

var document = {
  fake: true,
  attachEvent: __empty_func__,
  body: {
    style: {
      cursor: {}
    }
  },
  appendChild: __elem_func__,
  removeChild: __empty_func__,
  getElementById: __empty_func__,
  getElementsByTagName: function() { return [canvas]; },
  createElement: function () { return canvas; },
  addEventListener: __empty_func__,
  documentElement: {
    appendChild: __elem_func__,
    removeChild: __empty_func__,
    style: {
      paddingBottom: 0
    },
    insertBefore: __empty_func__
  },
  createTextNode: __empty_func__
};

var elem = {
  appendChild: __elem_func__,
  removeChild: __empty_func__,
  style: {}
};
 
var addEventListener = __empty_func__;
var XMLHttpRequest = __empty_func__;
var setInterval = __empty_func__;
var clearInterval = __empty_func__;
 
var window = {
  appendChild: __elem_func__,
  removeChild: __empty_func__,
  addEventListener: __empty_func__,
  setInterval: __empty_func__,
  XMLHttpRequest: __empty_func__,
  open: __empty_func__,
  print: print,
  document: document,
  createElement: function() { return elem; },
  setTimeout: __empty_func__,
  clearInterval: __empty_func__
};

window.XMLHttpRequest.prototype.open = __empty_func__;
window.XMLHttpRequest.prototype.send = __empty_func__;
window.XMLHttpRequest.prototype.responseText = "some text";
window.XMLHttpRequest.prototype.setRequestHeader = __empty_func__;
window.XMLHttpRequest.prototype.status = 200;

var Image = __empty_func__;

var localStorage = __empty_func__;