https://action.burmacampaign.org.uk/sites/burma-campaign/modules/c…/campaignion_webform_widget/js/embed.js

1(function() {
2
3  var el, iframe, i, script, messageHandler, element, container, options, xdomain,
4  resize = window.IframeResize = {},
5  id = 'iframe-4ee0adbddd0ca',
6  props = {
7    src : '',
8    width : '100%',
9    style : 'padding: 0; margin: 0; border: none; display: block; height: 0; overflow: hidden;',
10    scrolling : 'no',
11    frameBorder : 0,
12    id : id
13  },
14  ie = navigator.userAgent.toLowerCase().indexOf('msie') > -1 && /^(9.0|10.0)/.test(navigator.userAgent),
15  
16  // Sets the height of the iframe
17  setHeight = function (height) {
18    document.getElementById(id).style.height = height + 'px';
19  },
20
21  // Handler when window.postMessage is available
22  messageHandler = function (e) {
23    var height, r,
24      regex = new RegExp(xdomain + '$'),
25      matches = e.origin.match(regex);
26    if(matches){
27      strD = e.data + "";
28      r = strD.match(/^(\d+)(s?)$/);
29      if(r && r.length == 3){
30        height = parseInt(r[1]);
31        if (!isNaN(height)) {
32          try {
33            setHeight(height);
34          } catch (ex) {}
35        }
36        if(r[2] == "s"){
37          scroll(0,0);
38        }
39      }
40    }
41  },
42
43  // Sets the default values then overrides
44  setProps = function (options) {
45    for (i in props) {
46      try {
47        var prop = (props[i] == options[i] || typeof(options[i]) == "undefined")? props[i] : options[i];
48        if (i !== 'style') {
49          iframe[i] = prop;
50        } else {
51          iframe[i].cssText = prop;
52        }
53      } catch (ex) {}
54    }
55  },
56  setup = function(options) {
57    options = options || {};
58    xdomain = options.domain || '.*';
59    element = options.element || 'iframe-embed';
60    container = document.getElementById(element);
61    el = !ie ? 'iframe' : '<iframe name="' + element + '"></iframe>';
62    iframe = document.createElement(el);
63    setProps(options);
64  };
65
66  resize.load = function (options){
67    setup(options);
68    if(!container) return;
69    try {
70      container.appendChild(iframe);
71      if (window.postMessage) {
72        if (window.addEventListener) {
73          window.addEventListener('message', messageHandler, false);
74        } else if (window.attachEvent) {
75          window.attachEvent('onmessage', messageHandler);
76        }
77        return true;
78      } else {
79        return false;
80      }
81    } catch (ey) {return false;}
82  }
83})();