/***
* Simple JS inheritance
* John Resig
*
* @see http://ejohn.org/blog/simple-javascript-inheritance/
***/
(function(){ var initializing = false, fnTest = /xyz/.test(function(){xyz;}) ? /\b_super\b/ : /.*/; this.Class = function(){}; Class.extend = function(prop) { var _super = this.prototype; initializing = true; var prototype = new this(); initializing = false; for (var name in prop) { prototype[name] = typeof prop[name] == "function" && typeof _super[name] == "function" && fnTest.test(prop[name]) ? (function(name, fn){ return function() { var tmp = this._super; this._super = _super[name]; var ret = fn.apply(this, arguments); this._super = tmp; return ret; }; })(name, prop[name]) : prop[name]; } function Class() { if ( !initializing && this.init ) this.init.apply(this, arguments); } Class.prototype = prototype; Class.constructor = Class; Class.extend = arguments.callee; return Class; }; })();


/********************************
*                   _           * 
*     _____ ___ ___| |_ ___     *
*    |     |_ -|   | . |  _|    *
*  --|_|_|_|___|_|_|___|___|--  *
*     \ \ \ \   \ \ \   \   \   *
*    Msnbc.com core JavaScript  *
********************************/

/***
* namespace msnbc
***/ 
(function() {
 
 msnbc = window.msnbc || {};
 
 /***
 * function namespace
 * 
 * @param name:String period-delimited string of object to create/return, i.e. package path
 * @param [base_scope:Object] optional starting object to attach namespace to
 *
 * takes a string name and returns corresponding object attached to window or the base_scope parameter
 * @example msnbc.namespace('foods.pastas.fusilli');
 *          // returns window.foods.pastas.fusilli object
 * @example var trees = {};
 *          msnbc.namespace('coniferous.pine', trees);
 *          // returns trees.coniferous.pine object in local scope
 ***/
 msnbc.namespace = function(name, base_scope) {
  var parts = name.split(".");
  // attach object hierarchy to window if base scope not defined
  var curr = base_scope || window;
  // recursively create objects or return if already there according to the package path
  for (var i=0; i < parts.length; i++) {
   curr = (function (p, c) {
      p[c] = p[c]||{};
      return p[c];
        })(curr, parts[i]);
  }
  return curr;
 };
 
 
 

 /***
 * Package msnbc.core
 ***/
 (function() {
  var $$ = msnbc.namespace("msnbc.core");
  
  
  /***
  * class msnbc.core.EventDispatcher extends Class
  *
  * basic class with foundational event messaging methods
  ***/
  $$.EventDispatcher = Class.extend({
   init: function() {
    this.__listeners = {};
   },
   
   /***
   * method dispatchEvent
   *
   * @param msg:String name of event being dispatched
   * @param params:Object passed on to the listening method
   ***/
   dispatchEvent:function(msg, scope, params){
    var ls = this.__listeners[msg];
    if (!ls) return;
    for (var i = ls.length - 1; i >= 0; i--){
     if (typeof(ls[i]) == "function") {
      ls[i].call(this, scope, params);
     }
     
    }
   },

   /***
   * method addListener
   *
   * @param msg:String name of event to listen for
   * @param callback:Function closure that will receive event and params when dispatchEvent method is fired
   ***/
   addListener: function(msg, callback){
    if (this.__listeners[msg]==undefined) this.__listeners[msg] = [];
    if (typeof(callback)=="function") {
     this.__listeners[msg].push(callback); 
    }
   },

   
   toString: function() {
    return '[EventDispatcher object]';
   }
   
  });

  
 })(); /* END package msnbc.core */



 /***
 * Package msnbc.document
 ***/
 (function(){
  
  /***
  * object msnbc.document
  *
  * methods and properties and data related to the page instance
  * INCOMPLETE INCOMPLETE INCOMPLETE
  ***/
  var $$ = msnbc.namespace("msnbc.document");

  $$.wbid = 0;
  $$.displaymode = 0;
  $$.isPreview = false;
  $$.cookies = {};
  $$.timers = {};
  $$.analytics = {};

  $$.PREVIEW_PATTERN = "msnbc-wbpreview";

  $$.isPreviewURL = function() {
   return window.location.host.indexOf($$.PREVIEW_PATTERN)!=-1;
  };


  $$.wbid2url = function(wbid, displaymode) {
   //return a page url based on given wbid and current document location/work environment/etc

  };

  $$.url2env = function(url) {
   // return a new full uri, including original extra parameters, but transformed given current document
   // work environment, etc
  };



 })(); /* END package msnbc.document */
 
 
 
 /***
 * Package msnbc.utils
 ***/
 (function() {
  var $$ = msnbc.namespace("msnbc.utils");
  
  
  /***
  * function getArray
  * 
  * @param loc:String period-delimited path to array you want to create or access if already created
  *
  * this works like msnbc.namespace(), except that the final value is an array, not an object
  *          msnbc.utils.getArray('trees.coniferous.pine.needles');
  *          // returns array at window.trees.coniferous.pine.needles
  ***/
  $$.getArray = function(loc) {
   var arr = window[loc] || [];
   if (loc.match(/\./)) {
    var ns = loc.substring(0, loc.lastIndexOf('.'));
    var an = loc.slice(loc.lastIndexOf('.')+1);
    var nsobj = msnbc.namespace(ns);
    nsobj[an] = nsobj[an] || []
    arr = nsobj[an];
    // make sure it wasn't defined already as some other object type
    if (arr.length==undefined||typeof(arr)=='string') msnbc.warn('[msnbc.utils::getArray] already defined as non-array: ' +loc);
    // USE WITH $1.3 if (!jQuery.isArray(arr)) msnbc.warn('[msnbc.utils::getArray] already defined as non-array: ' +loc);
   }
   
   return arr;
  };

  
  // TODO: support for other media subdomains?
  $$.makeAIMS = function(url, size){
   var rx = url.match(/(http\:\/\/msnbcmedia)\d??(\.msn\.com\/)[ij](\/.*?)(\..*?)?\.jpg/i);
   return rx[1] + rx[2] + 'j' + rx[3] + '.' + (size||'standard') + '.jpg';
  };
  
  // TODO: finish this
  $$.truncate = function(str, length, useWordBoundary, useChars, endingStr){
   // defaults
   length=length||15; useChars=useChars||true; useWordBoundary=useWordBoundary||false; endingStr=endingStr||" ...";
   var rx, result;
   if (useChars) {
    if (useWordBoundary) rx = new RegExp("^.{0,"+length+"}\s"); // \b flag doesn't work, not awesome.
    else rx = new RegExp("^.{0,"+length+"}");
   } else {
    // count words
   }
   
   result = rx.exec(str);
   if (result) {
    return result[0]+endingStr;
   } else {
    msnbc.warn("Msnbc.utils.truncate error");
   }
   
  };
  
  
  $$.isAboveViewport = function(selectr, offset){
   var t = $(window).scrollTop();
   return t >= $(selectr).offset().top + $(selectr).height() + (offset||0);
  };

  $$.isBelowViewport = function(selectr, offset){
   var b = $(window).height() + $(window).scrollTop();
   return b <= $(selectr).offset().top + (-offset||0);
  };

  $$.isInViewport = function(selectr, padding){
   return !$$.isAboveViewport(selectr, padding) && !$$.isBelowViewport(selectr, padding);
  };
  
  
 })(); /* END package msnbc.utils */
 
 
 
 msnbc.warn = function(msg) {
  /*msnbc.document.isPreviewURL() || */
  if (msnbc.document.VERBOSE) {
   alert(msg);
  } else if (window.console) {
   console.warn('msnbc: '+msg);
  }
 };
 
 /*tiff addition*/
 msnbc.print = function(msg){};
 
 
 msnbc.log =  function(msg){
  if (window.console) {
   if (typeof(msg)=="string") {     
    console.log('msnbc: '+msg);
   } else {
    console.log(msg);
   }
   
  }
 };
  

})(); /* END namespace msnbc */