/*

Extended with fullscreen switch by Lennart Pilon

*/

/******************************************************************/
/*                        MOOdalBox 1.2.1                         */
/* A modal box (inline popup), used to display remote content     */
/* loaded using AJAX, written for the mootools framework          */
/*         by Razvan Brates, razvan [at] e-magine.ro              */
/******************************************************************/
/*               http://www.e-magine.ro/moodalbox                 */
/******************************************************************/
/*                                                                */
/* MIT style license:                                             */
/* http://en.wikipedia.org/wiki/MIT_License                       */
/*                                                                */
/* mootools found at:                                             */
/* http://mootools.net/                                           */
/*                                                                */
/* Original code based on "Slimbox", by Christophe Beyls:         */
/* http://www.digitalia.be/software/slimbox                       */
/******************************************************************/

// Constants defined here can be changed for easy config / translation
// (defined as vars, because of MSIE's lack of support for const)

var _ERROR_MESSAGE = "Oops.. there was a problem with your request.<br /><br />" +
          "Please try again.<br /><br />" +
          "<em>Click anywhere to close.</em>"; // the error message displayed when the request has a problem
var _RESIZE_DURATION    = 0;    // Duration of height and width resizing (ms)
var _INITIAL_WIDTH      = 500;    // Initial width of the box (px)
var _INITIAL_HEIGHT     = 400;    // Initial height of the box (px)
var _CONTENTS_WIDTH     = 500;    // Actual width of the box (px)
var _CONTENTS_HEIGHT    = 400;    // Actual height of the box (px)
var _DEF_CONTENTS_WIDTH   = 500;    // Default width of the box (px) - used for resetting when a different setting was used
var _DEF_CONTENTS_HEIGHT  = 400;    // Default height of the box (px) - used for resetting when a different setting was used
var _DEF_FULLSCREEN_WIDTH = 0.8;    // Default fullscreen width (%)
var _DEF_FULLSCREEN_HEIGHT  = 0.8;    // Default fullscreen height (%)
var _ANIMATE_CAPTION    = false;   // Enable/Disable caption animation
var _EVAL_SCRIPTS     = true;  // Option to evaluate scripts in the response text
var _EVAL_RESPONSE      = false;  // Option to evaluate the whole response text

// The MOOdalBox object in its beauty
var MOOdalBox = {
  
  // init the MOOdalBox
  init: function (options) {
    
    // init default options
    this.options = Object.extend({
      resizeDuration:     _RESIZE_DURATION,
      initialWidth:       _INITIAL_WIDTH, 
      initialHeight:      _INITIAL_HEIGHT,
      contentsWidth:      _CONTENTS_WIDTH,
      contentsHeight:     _CONTENTS_HEIGHT,
      defContentsWidth:     _DEF_CONTENTS_WIDTH,
      defContentsHeight:    _DEF_CONTENTS_HEIGHT,
      defFullscreenWidth:   _DEF_FULLSCREEN_WIDTH,
      defFullscreenHeight:  _DEF_FULLSCREEN_HEIGHT,
      animateCaption:     _ANIMATE_CAPTION,
      evalScripts:      _EVAL_SCRIPTS,
      evalResponse:       _EVAL_RESPONSE
    }, options || {});
    
    // scan anchors for those opening a MOOdalBox
    this.anchors = [];
    $A($$('a')).each(function(el){
      // we use a regexp to check for links that 
      // have a rel attribute starting with "moodalbox"
      if(el.rel && el.href && el.rel.test('^moodalbox', 'i')) {
        el.onclick = this.click.pass(el, this);
        this.anchors.push(el);
      }
    }, this);
    
    // add event listeners
    this.eventKeyDown = this.keyboardListener.bindWithEvent(this);
    this.eventPosition = this.position.bind(this);
    
    // init the HTML elements
    // the overlay (clickable to close)
    this.overlay = new Element('div').setProperty('id', 'mb_overlay').injectInside(document.body);
    // the center element
    this.center = new Element('div').setProperty('id', 'mb_center').setStyles({width: this.options.initialWidth+'px', height: this.options.initialHeight+'px', marginLeft: '-'+(this.options.initialWidth/2)+'px', display: 'none'}).injectInside(document.body);
    // the actual page contents
    this.contents = new Element('div').setProperty('id', 'mb_contents').injectInside(this.center);

    // the bottom part (caption / close)
    this.bottom = new Element('div').setProperty('id', 'mb_bottom').setStyle('display', 'none').injectInside(document.body);
    this.closelink = new Element('a').setProperties({id: 'mb_close_link', href: '#'}).injectInside(this.bottom);
    
    // this box is modal and we want to ignore user clicks
    this.closelink.setStyle('display', 'none');
    
    this.caption = new Element('div').setProperty('id', 'mb_caption').injectInside(this.bottom);
    new Element('div').setStyle('clear', 'both').injectInside(this.bottom);
    
    this.error = new Element('div').setProperty('id', 'mb_error').setHTML(_ERROR_MESSAGE);
    
    // attach the close event to the close button / the overlay
    this.closelink.onclick = this.close.bind(this);
    
    // init the effects
    var nextEffect = this.nextEffect.bind(this);
    this.fx = {
      overlay:  this.overlay.effect('opacity', { duration: 500 }).hide(),
      resize:   this.center.effects({ duration: this.options.resizeDuration, onComplete: nextEffect }),
      contents:   this.contents.effect('opacity', { duration: 500, onComplete: nextEffect }),
      bottom:   this.bottom.effects({ duration: 400, onComplete: nextEffect })
    };
    
    this.ajaxRequest = Class.empty;

  },
  
  click: function(link) {
    return this.open (link.href, link.title, link.rel);
  },

  open: function(sLinkHref, sLinkTitle, sLinkRel) {
    this.href = sLinkHref;
    this.title = sLinkTitle;
    this.rel = sLinkRel;
    this.position();
    this.setup(true);
    this.top = Window.getScrollTop() + (Window.getHeight() / 15);
    this.center.setStyles({top: this.top+'px', display: ''});
    this.fx.overlay.custom(0.8);
    return this.loadContents(sLinkHref);
  },

  position: function() {
    this.overlay.setStyles({top: Window.getScrollTop()+'px', height: Window.getHeight()+'px'});
  },

  setup: function(open) {
    var elements = $A($$('object'));
    elements.extend($$(window.ActiveXObject ? 'select' : 'embed'));
    elements.each(function(el){ el.style.visibility = open ? 'hidden' : ''; });
    var fn = open ? 'addEvent' : 'removeEvent';
    window[fn]('scroll', this.eventPosition)[fn]('resize', this.eventPosition);
    document[fn]('keydown', this.eventKeyDown);
    this.step = 0;
  },
  
  loadContents: function() {    
    if(this.step) return false;
    this.step = 1;
    
    // check to see if there are specified dimensions
    // if not, fall back to default values
    // fullscreen switch by Lennart Pilon
    if (this.rel.test("fullscreen")){
      
      this.options.contentsWidth = this.options.defFullscreenWidth*window.getWidth();
      this.options.contentsHeight = this.options.defFullscreenHeight*window.getHeight();
    
    } else {
      
      var aDim = this.rel.split(' ');
      
      if (aDim[1] && aDim[2]){

        var w = aDim[1].toInt();
        var h = aDim[2].toInt();
        
        if (aDim[1].test("%")) {
          this.options.contentsWidth = (w > 0) ? 0.01*w*window.getWidth() : this.options.defFullscreenWidth*window.getWidth();
        } else {
          this.options.contentsWidth = (w > 0) ? w : this.options.defContentsWidth;
        }
        if (aDim[2].test("%")) {
          this.options.contentsHeight = (h > 0) ? 0.01*w*window.getHeight() : this.options.defFullscreenHeight*window.getHeight();
        } else {
          this.options.contentsHeight = (h > 0) ? h : this.options.defContentsHeight;
        }
      }
    }
            
    this.bottom.setStyles({opacity: '0', height: '0px', display: 'none'});
    this.center.className = 'mb_loading';
    
    this.fx.contents.hide();
    
    // AJAX call here
    var nextEffect = this.nextEffect.bind(this);
    var ajaxFailure = this.ajaxFailure.bind(this);
    var ajaxOptions = {
      method:     'get',
      update:     this.contents, 
      evalScripts:  this.options.evalScripts,
      evalResponse:   this.options.evalResponse,
      onComplete:   nextEffect, 
      onFailure:    ajaxFailure
      };
    this.ajaxRequest = new Ajax(this.href, ajaxOptions).request();
        
    return false;
  },
  
  ajaxFailure: function (){
    this.contents.setHTML('');
    this.error.clone().injectInside(this.contents);
    this.nextEffect();
    this.center.setStyle('cursor', 'pointer');
    this.bottom.setStyle('cursor', 'pointer');
    this.center.onclick = this.bottom.onclick = this.close.bind(this);    
  },
  
  nextEffect: function() {
    switch(this.step++) {
    case 1:
      // remove previous styling from the elements 
      // (e.g. styling applied in case of an error)
      this.center.className = '';
      this.center.setStyle('cursor', 'default');
      this.bottom.setStyle('cursor', 'default');
      this.center.onclick = this.bottom.onclick = '';
      this.caption.setHTML(this.title);
      
      this.contents.setStyles ({width: this.options.contentsWidth + "px", height: this.options.contentsHeight + "px"});

      if(this.center.clientHeight != this.contents.offsetHeight) {
        this.fx.resize.custom({height: [this.center.clientHeight, this.contents.offsetHeight]});
        break;
      }
      this.step++;
          
    case 2:
      if(this.center.clientWidth != this.contents.offsetWidth) {
        this.fx.resize.custom({width: [this.center.clientWidth, this.contents.offsetWidth], marginLeft: [-this.center.clientWidth/2, -this.contents.offsetWidth/2]});
        break;
      }
      this.step++;
    
    case 3:
      this.bottom.setStyles({top: (this.top + this.center.clientHeight)+'px', width: this.contents.style.width, marginLeft: this.center.style.marginLeft, display: ''});
      this.fx.contents.custom(0,1);
      break;
    
    case 4:
      if(this.options.animateCaption) {
        this.fx.bottom.custom({opacity: [0, 1], height: [0, this.bottom.scrollHeight]});
        break;
      }
      this.bottom.setStyles({opacity: '1', height: this.bottom.scrollHeight+'px'});

    case 5:
      this.step = 0;
    }
  },
  
  
  keyboardListener: function(event) {
    // close the MOOdalBox when the user presses CTRL + W, CTRL + X, ESC
    if ((event.control && event.key == 'w') || (event.control && event.key == 'x') || (event.key == 'esc')) {
      this.close();
      event.stop();
    }   
  },
  
  close: function() {
    if(this.step < 0) return;
    this.step = -1;
    for(var f in this.fx) this.fx[f].clearTimer();
    this.center.style.display = this.bottom.style.display = 'none';
    this.center.className = 'mb_loading';
    this.fx.overlay.chain(this.setup.pass(false, this)).custom(0);
    return false;
  }
    
};

// startup
Window.onDomReady(MOOdalBox.init.bind(MOOdalBox));