/**
 @author : L.drin (via a work of Chris Campbell)
 @website: http://www.myrtille.com
 @date: 2/1/2006
 @version: 1.1
 Inspired by the lightbox implementation (http://www.huddletogether.com/projects/lightbox/)
*/

/*-------------------------------GLOBAL VARIABLES------------------------------------*/

var detect = navigator.userAgent.toLowerCase();
var OS,browser,version,total,thestring;

/*-----------------------------------------------------------------------------------------------*/

//Browser detect script origionally created by Peter Paul Koch at http://www.quirksmode.org/

function getBrowserInfo() {
	if (checkIt('konqueror')) {
		browser = "Konqueror";
		OS = "Linux";
	}
	else if (checkIt('safari')) browser 	= "Safari"
	else if (checkIt('omniweb')) browser 	= "OmniWeb"
	else if (checkIt('opera')) browser 		= "Opera"
	else if (checkIt('webtv')) browser 		= "WebTV";
	else if (checkIt('icab')) browser 		= "iCab"
	else if (checkIt('msie')) browser 		= "Internet Explorer"
	else if (!checkIt('compatible')) {
		browser = "Netscape Navigator"
		version = detect.charAt(8);
	}
	else browser = "An unknown browser";

	if (!version) version = detect.charAt(place + thestring.length);

	if (!OS) {
		if (checkIt('linux')) OS 		= "Linux";
		else if (checkIt('x11')) OS 	= "Unix";
		else if (checkIt('mac')) OS 	= "Mac"
		else if (checkIt('win')) OS 	= "Windows"
		else OS 								= "an unknown operating system";
	}
	if (browser != 'Netscape Navigator') {
		$('body').addClassName('fixed'); 
	}
}

function checkIt(string) {
	place = detect.indexOf(string) + 1;
	thestring = string;
	return place;
}

/*-----------------------------------------------------------------------------------------------*/

Event.observe(window, 'load', initialize, false);
Event.observe(window, 'load', getBrowserInfo, false);
Event.observe(window, 'unload', Event.unloadCache, false);

var objtmp;
var widthbox = '';
var heightbox = '';
var zh = '';
var th = '';
var lightbox = Class.create();

lightbox.prototype = {

	yPos : 0,
	xPos : 0,
  stop : false,
  widthbox : 500,
  heightbox : 250,
	initialize: function(ctrl) {
			init_myrtille_lb[ctrl.getAttribute('id')] = true;
			this.content = ctrl.href;
			if(ctrl.getAttribute('onclose')) {
	      this.onclose = ctrl.getAttribute('onclose');
			} else {
	      this.onclose = null;
	    }
			//init_myrtille_lb_fix[this.getAttribute('id')] = null;
	    //this.widthbox	= '';
	    //this.heightbox = '';
	    objtmp = this;
	    //lightbox
	    
	    
			Event.observe(ctrl, 'click', this.activate.bindAsEventListener(this), false);
			ctrl.onclick = function(){return false;};
	},
	
	// Turn everything on - mainly the IE fixes
	activate: function(){
		if (browser == 'Internet Explorer'){
			this.getScroll();
			this.prepareIE('100%', 'hidden');
			this.setScroll(0,0);
			this.hideSelects('hidden');
		}
		this.displayLightbox("block");
	},
	
	// Ie requires height to 100% and overflow hidden or else you can scroll down past the lightbox
	prepareIE: function(height, overflow){
		bod = document.getElementsByTagName('body')[0];
		bod.style.height = height;
		bod.style.overflow = overflow;
  
		htm = document.getElementsByTagName('html')[0];
		htm.style.height = height;
		htm.style.overflow = overflow; 
	},
	
	// In IE, select elements hover on top of the lightbox
	hideSelects: function(visibility){
		selects = document.getElementsByTagName('select');
		for(i = 0; i < selects.length; i++) {
			selects[i].style.visibility = visibility;
		}
	},
	
	// Taken from lightbox implementation found at http://www.huddletogether.com/projects/lightbox/
	getScroll: function(){
		if (self.pageYOffset) {
			this.yPos = self.pageYOffset;
		} else if (document.documentElement && document.documentElement.scrollTop){
			this.yPos = document.documentElement.scrollTop; 
		} else if (document.body) {
			this.yPos = document.body.scrollTop;
		}
	},
	
	setScroll: function(x, y){
		window.scrollTo(x, y); 
	},
	
	displayLightbox: function(display){
	 if(display != 'none') {
	 	fla = document.getElementsByTagName('object');
	 	for(fl = 0; fl < fla.length; fl++) {
			fla[fl].hide();  
		}
    new Effect.Opacity('overlay',
    { duration: 0.5, 
      fps: 100,
      transition: Effect.Transitions.linear, 
      from: 0.0, to: 0.7,beforeStart: function () {
        $('overlay').style.display = display;
      }
    });
    new Effect.Opacity('lightbox',
    { duration: 0.5, 
      transition: Effect.Transitions.linear, 
      fps: 100,
      from: 0.0, to: 1.0,beforeStart: function () {
  		  $('lightbox').style.display = display;
      }
    });
    urlquery = this.content.split("?");
    rnurlterms = urlquery[1].split("&");
    rnurlterms.each(function(pair) {
       if(pair.indexOf('width=',0) != -1) {
        widthbox = pair.substring(6,pair.length);
       } else if(pair.indexOf('height=',0) != -1) {        
        heightbox = pair.substring(7,pair.length);
       }
     });
      zh = widthbox / 2;
      //$('lightbox').scrollTo();
      if(window.pageYOffset) {
        $('lightbox').style.top = (window.pageYOffset + 300) + 'px';
      } else {
        $('lightbox').style.top = '300px';
      }
      $('lightbox').style.width = '1px';//setWidth(widthbox);
      $('lightbox').style.width = '1px'; //setHeight(heightbox);
      $('lightbox').style.display = display;
      new Effect.Morph('lightbox',{
        style:'width: '+ widthbox + 'px;min-height: ' + heightbox + 'px;min-height:' + zh + 'px; margin:-220px 0 0 -' + zh + 'px;',
          duration: 1,
      		fps: 100,
          afterFinish: this.loadInfo()
      });
      /*
      $('lightbox').style.width = widthbox + 'px';//setWidth(widthbox);
      $('lightbox').style.width = heightbox + 'px'; //setHeight(heightbox);*/
      /*$('lightbox').style.display = display;*/
      //new Effect.Grow('lightbox', {direction: 'center', duration: 1.0, afterFinish: this.loadInfo()});

    
   } else {
    new Effect.Opacity('overlay',
    { duration: 0.5, 
      transition: Effect.Transitions.linear, 
      from: 0.7, to: 0.0,afterFinish: function () {
        $('overlay').style.display = display;
        } });
    new Effect.Opacity('lightbox',
    { duration: 0.5, 
      transition: Effect.Transitions.linear, 
      from: 1.0, to: 0.0,afterFinish: function () {
        $('lightbox').style.display = display;
        } });
	 	fla = document.getElementsByTagName('object');
	 	for(fl = 0; fl < fla.length; fl++) {
			fla[fl].show(); 
		}
   }   
		
	},
	
	// Begin Ajax request based off of the href of the clicked linked
	loadInfo: function() {
		var myAjax = new Ajax.Request(
        this.content + '&isajax=true',
        {method: 'post', parameters: "", onComplete: this.processInfo.bindAsEventListener(this)}
		);
		
	},
	
	// Display Ajax response
	processInfo: function(response) {
		info = '<div id="lbContent">' + response.responseText + '</div>';
		//$('lightbox').replace(info);
		new Insertion.Before($('lbLoadMessage'), info)
		$('lightbox').className = "done";	
		this.actions();			
	},
	
	// Search through new links within the lightbox, and attach click event
	actions: function(){
		lbActions = document.getElementsByClassName('lbAction');
		for(i = 0; i < lbActions.length; i++) {
			Event.observe(lbActions[i], 'click', this[lbActions[i].rel].bindAsEventListener(this), false);
			lbActions[i].onclick = function(){return false;};
		}
		myrtille_elem($('lbContent'));
    lbAuto = $('autoclose');
		if(lbAuto) {
      this.timer(3000);
    }   
	},
	
	// Example of creating your own functionality once lightbox is initiated
	insert: function(e){
	   link = Event.element(e).parentNode;
	   Element.remove($('lbContent'));
	 
	   var myAjax = new Ajax.Request(
			  link.href,
			  {method: 'post', parameters: "", onComplete: this.processInfo.bindAsEventListener(this)}
	   );
	 
	},
	
	// Example of creating your own functionality once lightbox is initiated
	deactivate: function(){      
    $('lbContent').remove();
		
		if (browser == "Internet Explorer"){
			this.setScroll(0,this.yPos);
			this.prepareIE("auto", "auto");
			this.hideSelects("visible");
		}
		
		this.displayLightbox("none"); 
    if(this.onclose) {
        eval(this.onclose);
      }
	},
	
	autodeactivate: function(){
    this.deactivate();
  },

  timer : function(time,eval) {
    if(!this.stop) {
      this.stop = true;      
      setTimeout('go()',time);
    } else {
      this.stop = false;
      this.autodeactivate();
    }
  }
}

function go() {
  objtmp.timer();
}
/*-----------------------------------------------------------------------------------------------*/

// Onload, make all links that need to trigger a lightbox active
function initialize(){
	//addLightboxMarkup();
	lbox = document.getElementsByClassName('lbOn');
	for(i = 0; i < lbox.length; i++) {
		if(!isset(init_myrtille_lb[lbox[i].getAttribute('id')])) {
		  valid = new lightbox(lbox[i]);
		}
	}
}

// Add in markup necessary to make this work. Basically two divs:
// Overlay holds the shadow
// Lightbox is the centered square that the content is put into.
function addLightboxMarkup() {
	bg = '<div id="overlay"></div>';
	box = '<div id="border-lightbox"><div id="lightbox" class="loading"><div id="lbLoadMessage">' +
						  '<p><img src="http://www.myrtillepass.net/api/ajax-loader.gif" /></p>' +
						  '</div></div></div>';
	loader = '<div id="loader"><h3>Chargement ...</h3><img src="http://static.myrtille.com/img/ajax-loader.gif" alt="Chargement"/></div>';
  new Insertion.After('container',bg);
  new Insertion.After('container',box);
  new Insertion.After('container',loader);
}