public/javascripts/facebooker.js

   1
   2 function $(element) {
   3   if (typeof element == "string") {
   4     element=document.getElementById(element);
   5   }
   6   if (element)
   7     extend_instance(element,Element);
   8   return element;
   9 }
  10
  11 function extend_instance(instance,hash) {
  12   for (var name in hash) {
  13     instance[name] = hash[name];
  14   }
  15 }
  16
  17 var Element = {
  18   "hide": function () {
  19     this.setStyle("display","none")
  20   },
  21   "show": function () {
  22     this.setStyle("display","block")
  23   },
  24   "visible": function () {
  25     return (this.getStyle("display") != "none");
  26   },
  27   "toggle": function () {
  28     if (this.visible) {
  29       this.hide();
  30     } else {
  31       this.show();
  32     }
  33   }
  34 };
  35
  36 function encodeURIComponent(str) {
  37   if (typeof(str) == "string") {
  38     return str.replace(/=/g,'%3D').replace(/&/g,'%26');
  39   }
  40   //checkboxes and radio buttons return objects instead of a string
  41   else if(typeof(str) == "object"){
  42     for (prop in str)
  43     {
  44       return str[prop].replace(/=/g,'%3D').replace(/&/g,'%26');
  45     }
  46   }
  47 };
  48
  49 var Form = {};
  50 Form.serialize = function(form_element) {
  51   return  $(form_element).serialize();
  52 };
  53
  54 Ajax.Updater = function (container,url,options) {
  55   this.container = container;
  56   this.url=url;
  57   this.ajax = new Ajax();
  58   this.ajax.requireLogin = 1;
  59   if (options["onSuccess"]) {
  60     this.ajax.responseType = Ajax.JSON;
  61     this.ajax.ondone = options["onSuccess"];
  62   } else {
  63     this.ajax.responseType = Ajax.FBML;
  64     this.ajax.ondone = function(data) {
  65       $(container).setInnerFBML(data);
  66     }
  67   }
  68   if (options["onFailure"]) {
  69     this.ajax.onerror = options["onFailure"];
  70   }
  71
  72   if (!options['parameters']) {
  73     options['parameters'] = {}
  74   }
  75
  76   // simulate other verbs over post
  77   if (options['method']) {
  78     options['parameters']['_method'] = options['method'];
  79   }
  80
  81   this.ajax.post(url,options['parameters']);
  82   if (options["onLoading"]) {
  83      options["onLoading"].call()
  84   }
  85 };
  86 Ajax.Request = function(url,options) {
  87   Ajax.Updater('unused',url,options);
  88 };
  89
  90 PeriodicalExecuter = function (callback, frequency) {
  91         setTimeout(callback, frequency *1000);
  92         setTimeout(function() { new PeriodicalExecuter(callback,frequency); }, frequency*1000);
  93 };