/*
Created By: Chris Campbell
Website: http://particletree.com
Date: 2/1/2006

Inspired by the lightbox implementation found at 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";
	}
}

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 lightbox = Class.create();


lightbox.prototype = {

	yPos : 0,
	xPos : 0,
	
	
	resetURL : function(url) {
		this.content = url;
	},

	initialize: function(ctrl) {
		this.content = ctrl.href;
		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.hideFlash('hidden');
			this.lbHideSelects('hidden');
			this.getScroll();
			this.prepareIE('100%', 'hidden', 'hidden');
			this.setScroll(0,0);
			$('container').style.paddingRight='17px';/* this fixes the IE positioning bug after the scroll bar is hidden */
		}
		this.hideFlash('hidden');
		this.displayLightbox("block");
	},
	
	// Ie requires height to 100% and overflow hidden or else you can scroll down past the lightbox
	prepareIE: function(height, overflowx, overflowy){
	    bod = document.getElementsByTagName('body')[0];
	    bod.style.height = height;
	    bod.style.overflow = overflowx;
	    bod.style.overflow = overflowy;
  
	    htm = document.getElementsByTagName('html')[0];
	    htm.style.height = height;
	    htm.style.overflow = overflowx;
	    htm.style.overflow = overflowy;
	},
	
	// In IE, select elements hover on top of the lightbox
	lbHideSelects: function(visibility){
		selects = document.getElementsByTagName('select');
		for(i = 0; i < selects.length; i++) {
			selects[i].style.visibility = visibility;
		}
	},
	
	// In IE, flash elements hover on top of the lightbox
	hideFlash: function(visibility){
		if(document.getElementsByClassName('flash')){
			flashObj = document.getElementsByClassName('flash');
			for(i = 0; i < flashObj.length; i++) {
				flashObj[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){
		$('overlay').style.display = display;
		$('lightbox').style.display = display;
		if(display != 'none') this.loadInfo();
	},
	
	// Begin Ajax request based off of the href of the clicked linked
	loadInfo: function() {
		var myAjax = new Ajax.Request(
        this.content,
        {method: 'get', parameters: "", onComplete: this.processInfo.bindAsEventListener(this)}
		);
	},
	
	// Display Ajax response
	processInfo: function(response){
		info = "<div id='lbContent'>" + response.responseText + "</div>";
		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;};
			if (lbActions[i].hasAttribute('useonclick')
			    && browser == 'Internet Explorer') {
			    lbActions[i].onclick = function() {
				eval(window.event.srcElement.useonclick);
				return false; // we have handled the event
			    }
			}
		}

	},
	
	insert: function(e){
	   link = Event.element(e);
	   Element.remove($('lbContent'));
	 
	   var myAjax = new Ajax.Request(link.href, {
	       method: 'get', 
	       parameters: "", 
	       onComplete: this.processInfo.bindAsEventListener(this)
	   });
	},
		
	deactivate: function(){
	    Element.remove($('lbContent'));
		
	    if (browser == "Internet Explorer"){
		this.setScroll(0,this.yPos);
		this.prepareIE("auto", "auto", "");
		this.lbHideSelects("visible");
		$('container').style.paddingRight='0px';/* this fixes the IE positioning bug after the scroll bar reappears */
	    }
	    this.hideFlash("visible");
	    this.displayLightbox("none");
	},

	registercomplete: function(e){
	    this.deactivate();
	    document.location.reload(true);
	},

	seerouserupdate: function(e){
	    return submitUserUpdate();
	},

	seeroregister: function(e){
	    return submitRegistration();
	},

	seerologin: function(e){
	    new Ajax.Request('/login.php', {
		parameters: $('login').serialize(true),
		onSuccess: function(response){ 
		    window.location.href = $F('nextloc');
		},

		onFailure: function(response){
		    if (401 == response.status) {
			$('system-message').show();
		    }
		}
	    }); 
	},
	
	seeroresetpassword: function(e){
	    return submitResetPassword();
	},

	seerologinredirect: function(e){
	    return logTheUserIn();
	}
}

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

var lightboxHandles = new Array();
// Onload, make all links that need to trigger a lightbox active
function initialize(){
	addLightboxMarkup();
	var lbox = document.getElementsByClassName('lbOn');
	for(i = 0; i < lbox.length; i++) {
		if ( lbox[i].rel ) {
			lightboxHandles[ lbox[i].rel ] = new lightbox(lbox[i]);
		} else {
			var valid = new lightbox(lbox[i]);
		}
	}
	$('header-links').show();
}

// 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() {
	bod		= document.getElementsByTagName('body')[0];
	overlay		= document.createElement('div');
	overlay.id	= 'overlay';
	lb		= document.createElement('div');
	lb.id		= 'lightbox';
	lb.className 	= 'loading';
	lb.innerHTML	= '<div id="lbLoadMessage">' +
			  '<p>Loading</p>' +
			  '</div>';
	bod.appendChild(overlay);
	bod.appendChild(lb);
}

// Used to log the user in to the application
function logTheUserIn() {
    $('system-message').hide();
    new Ajax.Request('/login.php', {
	parameters: $('login').serialize(true),
	onSuccess: function(response) { 
	    window.location.href = $F('nextloc');
	},

	onFailure: function(response){
	    if (401 == response.status) {
		$('system-message').show();
	    }
	}
    }); 
}

function submitRegistration() {
    $('error').hide();
    $('usernameinvalid').hide();
    $('passwordmismatch').hide();
    $('passwordinvalid').hide();

    if (!validUsername($F('new-username'))) {
	$('usernameinvalid').show();
	return;
    } 
    if ($F('new-password') != $F('new-confirm-password')) {
	$('passwordmismatch').show();
	return;
    }
    if (!validPassword($F('new-password'))) {
	$('passwordinvalid').show();
	return;
    } 

    new Ajax.Request('/new_user.php', {
	parameters: $('new-user').serialize(true),
	onSuccess: function(response){ 
	    $('register').hide();
	    $('register-success').show();
	},
	onFailure: function(response) {
	    if (412 == response.status){
		$('error').update(response.responseText);
		$('error').show();
	    }

	}
    }); 
}

function submitUserUpdate() {
    $('passwordmismatch').hide();
    $('passwordinvalid').hide();
    $('oldpasswordincorrect').hide();
    $('enterpass').hide();

	if ($F('new-password') != '' && $F('new-confirm-password') != '') {
		if ($F('new-password') != $F('new-confirm-password')) {
			$('passwordmismatch').show();
			return false;
		}
		if (!validPassword($F('new-password'))) {
			$('passwordinvalid').show();
			return false;
		} 
	} else if ($F('old-password') == '') {
		$('enterpass').show();
		return false;
	}
	
    new Ajax.Request('/update_user.php', {
	parameters: $('update-user').serialize(true),
	onSuccess: function(response){ 
	    $('account-details').hide();
	    $('account-details-success').show();
	},
	onFailure: function(response) {
	    if (412 == response.status) {
		$('error').update(response.responseText);
		$('error').show();
		return false;
	    }
	}
    });
}

function submitResetPassword() {
	$('missinginfo').hide();
	$('idmissmatch').hide();
	if ($F('reset-username') == '' && $F('reset-email') == '') {
		$('missinginfo').show();
		return false;
	}
	new Ajax.Request('/send_reset_password.php', {
	parameters: $('reset-password-form').serialize(true),
	onSuccess: function(response){ 
	    $('resetpassword').hide();
	    $('reset-password-success').show();
	},
	onFailure: function(response) {
	    if (412 == response.status) {
			$('idmissmatch').show();
		return false;
	    }
	}
    });
}


function rewriteLightboxURLs(newurl) {
	lbox = document.getElementsByClassName('lbOn');
	for(i = 0; i < lbox.length; i++) {
		if ( lbox[i].href.match(/url=/) ) {
          var st = lbox[i].href;
		  lbox[i].href = st.replace(/url=.*/,'url='+newurl);
		  lightboxHandles[ lbox[i].rel ].resetURL(lbox[i].href);		  
		}
	}
}