1 files changed, 557 insertions, 0 deletions
diff --git a/js/utils.js b/js/utils.js
new file mode 100644
index 0000000..6fee040
--- /dev/null
+++ b/js/utils.js
@@ -0,0 +1,557 @@
+
+var _ = {};
+
+// Random Conts
+var breaker = {};
+
+var ArrayProto = Array.prototype,
+  ObjProto = Object.prototype,
+  FuncProto = Function.prototype;
+
+var
+  push             = ArrayProto.push,
+  slice            = ArrayProto.slice,
+  concat           = ArrayProto.concat,
+  toString         = ObjProto.toString,
+  hasOwnProperty   = ObjProto.hasOwnProperty;
+
+var
+  nativeForEach      = ArrayProto.forEach,
+  nativeMap          = ArrayProto.map,
+  nativeReduce       = ArrayProto.reduce,
+  nativeReduceRight  = ArrayProto.reduceRight,
+  nativeFilter       = ArrayProto.filter,
+  nativeEvery        = ArrayProto.every,
+  nativeSome         = ArrayProto.some,
+  nativeIndexOf      = ArrayProto.indexOf,
+  nativeLastIndexOf  = ArrayProto.lastIndexOf,
+  nativeIsArray      = Array.isArray,
+  nativeKeys         = Object.keys,
+  nativeBind         = FuncProto.bind;
+
+_.each = function(obj, iterator, context) {
+    if (obj == null) { return; }
+    if (nativeForEach && obj.forEach === nativeForEach) {
+        obj.forEach(iterator, context);
+    } else if (obj.length === +obj.length) {
+        for (var i = 0, l = obj.length; i < l; i++) {
+            if (i in obj && iterator.call(context, obj[i], i, obj) === breaker) { return; }
+        }
+    } else {
+        for (var key in obj) {
+            if (hasOwnProperty.call(obj, key)) {
+                if (iterator.call(context, obj[key], key, obj) === breaker) { return; }
+            }
+        }
+    }
+};
+
+_.map = function(obj, iterator, context) {
+  var results = [];
+  if (obj == null) {
+    return results;
+  }
+  if (Array.prototype.map && obj.map === Array.prototype.map){
+    return obj.map(iterator, context);
+  }
+  _.each(obj, function(value, index, list) {
+    results[results.length] = iterator.call(context, value, index, list);
+  });
+  return results;
+};
+
+// From: http://bit.ly/T9SjVv
+_.zip = function(arrays) {
+  return _.map(arrays[0], function(_,i){
+    return _.map(arrays, function(array){return array[i];});
+  });
+};
+
+_.extend = function(obj) {
+    _.each(Array.prototype.slice.call(arguments, 1), function(source) {
+        for (var prop in source) {
+            if (source[prop] !== void 0){ obj[prop] = source[prop]; }
+        }
+    });
+    return obj;
+};
+
+
+var ctor = function(){};
+
+_.bind = function(func, context) {
+  var args, bound;
+  if (nativeBind && func.bind === nativeBind) {
+    return nativeBind.apply(func, slice.call(arguments, 1));
+  }
+  if (!_.isFunction(func)) {
+    throw new TypeError;
+  }
+  args = slice.call(arguments, 2);
+  return bound = function() {
+    if (!(this instanceof bound)) {
+      return func.apply(context, args.concat(slice.call(arguments)));
+    }
+    ctor.prototype = func.prototype;
+    var self = new ctor;
+    ctor.prototype = null;
+    var result = func.apply(self, args.concat(slice.call(arguments)));
+    if (Object(result) === result) { return result; }
+    return self;
+  };
+};
+
+_.trim = function(str){
+   return str.replace(/^\s+|\s+$/g, '');
+};
+
+
+/* is Functions*/
+
+// from a comment on http://dbj.org/dbj/?p=286
+// fails on only one very rare and deliberate custom object:
+// var bomb = { toString : undefined, valueOf: function(o) { return "function BOMBA!"; }};
+_.isFunction = function (f) {
+    try {
+        return (/^\s*\bfunction\b/).test(f);
+    } catch (x) {
+        return false;
+    }
+};
+
+_.isNone = function(obj){
+  return (obj === null || obj === undefined);
+};
+_.isString = function(obj){
+  return toString.call(obj) === "[object String]";
+};
+_.isNumber = function(obj){
+  return toString.call(obj) === "[object Number]";
+};
+_.isDate = function(obj){
+  return toString.call(obj) === "[object Date]";
+};
+_.isObject = function(obj){
+  return toString.call(obj) === "[object Object]";
+};
+_.isArray = function(obj){
+  return toString.call(obj) === "[object Array]";
+};
+_.isElement = function(obj){
+  return (!_.isNone(obj) && !_.isNone(obj.nodeType) && obj.nodeType === 1);
+};
+
+_.isEmptyObject = function(obj) {
+    if (_.isObject(obj)) {
+        for (var key in obj) {
+            if (hasOwnProperty.call(obj, key)) {
+                return false;
+            }
+        }
+        return true;
+    }
+    return false;
+};
+
+/* Simple JavaScript Inheritance
+ * By John Resig http://ejohn.org/
+ * MIT Licensed.
+ */
+// Inspired by base2 and Prototype
+(function(_){
+  var initializing = false, fnTest = (/xyz/).test(function(){xyz;}) ? /\b_super\b/ : /.*/;
+
+  // The base Class implementation (does nothing)
+  _.Class = function(){};
+
+  // Create a new Class that inherits from this class
+  _.Class.extend = function(prop) {
+    var _super = this.prototype;
+
+    // Instantiate a base class (but only create the instance,
+    // don't run the init constructor)
+    initializing = true;
+    var prototype = new this();
+    initializing = false;
+
+    // Copy the properties over onto the new prototype
+    for (var name in prop) {
+      // Check if we're overwriting an existing function
+      prototype[name] = typeof prop[name] === "function" &&
+        typeof _super[name] === "function" && fnTest.test(prop[name]) ?
+        (function(name, fn){
+          return function() {
+            var tmp = this._super;
+
+            // Add a new ._super() method that is the same method
+            // but on the super-class
+            this._super = _super[name];
+
+            // The method only need to be bound temporarily, so we
+            // remove it when we're done executing
+            var ret = fn.apply(this, arguments);
+            this._super = tmp;
+
+            return ret;
+          };
+        })(name, prop[name]) :
+        prop[name];
+    }
+
+    // The dummy class constructor
+    function Class() {
+      // All construction is actually done in the init method
+      if ( !initializing && this.init ){
+        this.init.apply(this, arguments);
+      }
+    }
+
+    // Populate our constructed prototype object
+    Class.prototype = prototype;
+
+    // Enforce the constructor to be what we expect
+    Class.prototype.constructor = Class;
+
+    // And make this class extendable
+    Class.extend = arguments.callee;
+
+    return Class;
+  };
+})(_);
+
+
+/* UUID */
+_.getUUID = function(){
+  return 'xxxxxxxxxxxx4xxxyxxxxxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
+      var r = Math.random()*16|0, v = c === 'x' ? r : (r&0x3|0x8);
+      return v.toString(16);
+  });
+};
+
+
+/* SELECTORS */
+_.getElementsByClassName = function(cls, tag){
+  var elements = [];
+  if (_.isFunction(document.getElementsByClassName)){
+    _.each(document.getElementsByClassName(cls), function(e){
+      elements.push(e);
+    });
+    return elements;
+  }
+
+  if (_.isNone(tag)){
+    tag = '*';
+  }
+
+  var tags = document.getElementsByTagName(tag);
+
+  _.each(tags, function(elem){
+    if ((' ' + elem.className + ' ').indexOf(' '+cls+' ') > -1) {
+      elements.push(elem);
+    }
+  });
+  return elements;
+};
+
+_.getElementByClassName = function(cls, tag){
+  var elements = _.getElementsByClassName(cls, tag);
+  if (elements.length === 0){
+    return null;
+  }
+  return elements[0];
+};
+
+/* DOM */
+_.createElement = function(tag, attrs){
+  // create the iframe.
+  var elem = document.createElement(tag);
+
+  _.each(attrs, function(v, k){
+    elem.setAttribute(k, v);
+  });
+
+  return elem;
+};
+
+_.getChildren = function(elem, nodeName){
+  var e = [];
+
+  if (_.isString(nodeName)){
+    nodeName = nodeName.toUpperCase();
+  }
+
+  _.each(elem.childNodes, function(node){
+    if (_.isElement(node)){
+      if (!_.isNone(nodeName) && nodeName !== node.nodeName){
+        return false;
+      }
+      e.push(node);
+    }
+  });
+  return e;
+};
+
+_.getChild = function(elem, tagName){
+  /* gets the first child of the tag name.*/
+  var e = _.getChildren(elem, tagName);
+
+  if (e.length !== 0){
+    return e[0];
+  }
+  return null;
+};
+
+_.getTextContent = function(node){
+  return node.innerText || node.textContent;
+};
+
+_.setTextContent = function(node, text){
+  var prop = node.textContent === undefined ? 'innerText' : 'textContent';
+  node[prop] = text;
+};
+
+_.hasClass = function(elem, cls){
+  var kls = elem.getAttribute('class');
+
+  if (_.isNone(kls)){
+    return false;
+  }
+
+  if ((' '+kls+' ').indexOf(' '+cls+' ') > -1){
+    return true;
+  }
+  return false;
+};
+
+_.addClass = function(elem, cls){
+  var kls = elem.getAttribute('class');
+
+  if (_.isNone(kls)){
+    elem.setAttribute('class', cls);
+    return true;
+  }
+
+  var parts = kls.split(' '),
+    results = [];
+
+  _.map(parts, function(part){
+    var p = _.trim(part);
+
+    if (p !== ''){
+      results.push(p);
+    }
+  });
+
+  results.push(cls);
+
+  elem.setAttribute('class', results.join(' '));
+};
+
+_.removeClass = function(elem, cls){
+  var kls = elem.getAttribute('class');
+
+  if (_.isNone(kls)){
+    return true;
+  }
+
+  var parts = kls.split(' '),
+    results = [];
+
+  _.map(parts, function(part){
+    var p = _.trim(part);
+
+    if (p !== '' && p !== cls){
+      results.push(p);
+    }
+  });
+
+  elem.setAttribute('class', results.join(' '));
+};
+
+_.getData = function(e, attr){
+  if (!_.isNone(e.dataset)){
+    var parts = attr.split('-');
+
+    if (parts.length > 1){
+      attr = parts[0];
+      attr += _.map(parts.slice(1), function(p){return p[0].toUpperCase() + p.substr(1);}).join('');
+    }
+
+
+    // Just so it's null instead of undefined
+    return _.isNone(e.dataset[attr])? null: e.dataset[attr];
+  }
+  return e.getAttribute('data-'+attr);
+};
+
+
+_.parseStyle = function(style){
+  var data = {};
+
+  if (_.isNone(style)) { return data;}
+
+  _.each(style.split(';'), function(s){
+    var p = s.split(':');
+    data[_.trim(p[0])] = _.trim(p[1]);
+  });
+
+  return data;
+};
+
+_.createStyle = function(data){
+  var parts = [];
+  _.each(data, function(v,k){
+    parts.push(k+':'+v);
+  });
+  return parts.join(';');
+};
+
+
+/* EVENTS */
+
+_.addEvent = function(elem, type, eventHandle) {
+  if (_.isNone(elem)) { return; }
+  if ( elem.addEventListener ) {
+    elem.addEventListener( type, eventHandle, false );
+  } else if ( elem.attachEvent ) {
+    elem.attachEvent( "on" + type, eventHandle );
+  } else {
+    elem["on"+type]=eventHandle;
+  }
+};
+
+_.detachEvent = function(elem, type, eventHandle) {
+  if (_.isNone(elem)) { return; }
+  if ( elem.removeEventListener ) {
+    elem.removeEventListener( type, eventHandle, false );
+  } else if ( elem.detachEvent ) {
+    elem.detachEvent( "on" + type, eventHandle );
+  } else {
+    elem["on"+type]=null;
+  }
+};
+
+/* URL */
+_.parseQuery = function(query){
+  var data = {};
+
+  if (query.substr(0,1) === '#' || query.substr(0,1) === '?'){
+    query = query.substr(1);
+  }
+
+  var parts = query.split('&');
+
+  _.each(parts, function(part){
+    var p = part.split('=');
+    data[decodeURIComponent(p[0])] = decodeURIComponent(p[1]);
+  });
+  return data;
+};
+
+_.createQuery = function(data){
+  var parts = [],
+    query = '';
+
+  _.each(data, function(v, k){
+    parts.push(k+'='+encodeURIComponent(v));
+  });
+
+  return parts.join('&');
+};
+
+_.appendQuery = function(src, query){
+  var parts = src.split('?');
+
+  if (parts.length === 2){
+    var data = _.parseQuery(parts[1]);
+    data = _.extend(data, query);
+
+    return parts[0] +'?'+ _.createQuery(data);
+
+  } else {
+    return src +'?'+ _.createQuery(query);
+  }
+};
+
+_.getOrigin = function(url){
+  return url.split('/').slice(0,3).join('/');
+};
+
+_.parseHost = function(url){
+  if (_.isNone(url)){
+    return null;
+  }
+  try {
+    return url.split('//')[1].split('/')[0];
+  } catch (err){
+    return null;
+  }
+};
+
+
+/* IMGAGES */
+//IMAGES
+
+/**
+ * I want a consistent way to pick an i#{n).embed.ly server to use, so the
+ * browser can effeciently cache images. So we use abs(hash(url)) % 10
+ *
+ * this hashing function discussion at:
+ * http://werxltd.com/wp/2010/05/13/
+ *   javascript-implementation-of-javas-string-hashcode-method/
+ */
+_.hashCode = function(str){
+  var hash = 0, i, ch;
+  if (str.length === 0) {
+    return hash;
+  }
+  for (i = 0; i < str.length; i++) {
+    ch = str.charCodeAt(i);
+    hash = ((hash<<5)-hash)+ch;
+    hash = hash & hash; // Convert to 32bit integer
+  }
+  return hash;
+};
+
+_.isGif = function(url){
+  if (_.isNone(url)){
+    return false;
+  }
+  return (/.gif/i).test(url);
+};
+
+
+_.generateImage = function(url, width, height, options){
+  var method,
+    data = {
+      key: 'fd92ebbc52fc43fb98f69e50e7893c13',
+      url: url,
+      errorurl: 'http://4.bp.blogspot.com/-_Gx8wi1NZf0/TW_S5s4MibI/' +
+                'AAAAAAAAAT4/HQj19wUqfLA/s320/missin.gif'
+      //t: Math.ceil(Math.random() * 10000)
+    };
+
+  // Add our options.
+  data = _.extend(data, _.isNone(options)? {}: options);
+
+  if (width || height) {
+    method = 'crop';
+  } else {
+    method = 'resize';
+  }
+
+  if (width){
+    data.width = width;
+  }
+  if (height){
+    data.height = height;
+  }
+
+  var iServerNum = Math.abs(_.hashCode(url)) % 10;
+  return 'http://i-cdn.embed.ly/1/image/'+method+'?'+_.createQuery(data);
+};
+
+
+if (window.EMB_DEBUG === true){
+  window._ = _;
+}