/*

 * Mooquee 	  - mootools <marquee> tag replacement

 * Version	  - 1.1

 * Created By - Robert Inglin

 * Homepage   - http://robert.ingl.in/mooquee

 * Thanks to  - *mltsy* of Mooforum.net who wrote rewrote the 

		    transition system to allow in and out style 

		    transitions and included the fade transition

 * License    - MIT License Agreement



Copyright (c) 2008 Robert Inglin



Permission is hereby granted, free of charge, to any person

obtaining a copy of this software and associated documentation

files (the "Software"), to deal in the Software without

restriction, including without limitation the rights to use,

copy, modify, merge, publish, distribute, sublicense, and/or sell

copies of the Software, and to permit persons to whom the

Software is furnished to do so, subject to the following

conditions:



The above copyright notice and this permission notice shall be

included in all copies or substantial portions of the Software.



THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES

OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

OTHER DEALINGS IN THE SOFTWARE.

 */



Mooquee = new Class({

	Implements: [Options],



	options: {

		element: 'mooquee',

		cssitem: 'mooquee_item',

		firstitem:0,

		trans:{'tin':'up', 'tout':'fade'}, //each transition is up, down, left, right, fade

		pause: 1, //seconds (keep pause equal or higher to duration to allow time for items to reset) -1 = infinite pause/no loop

		duration: 1, //number of seconds to move marquee items

		overflow:'hidden', //if your item flows over how do you want to handle it. Auto(scroll) or Hidden work best...

		startOnLoad:true, // will start marquee when loaded

		pauseOnHover: true, //if true will pause all animations while mouse is hovering

		onTransitionStart: function(){},// Executes on transition start

		onTransitionComplete: function(){} // Executes on transition completion

	},

	initialize: function(options){

		this.setOptions(options);

        	this.itemFXs = [];

       	this.outDelay = 0;

        	this.inDelay = 0;

		this.started = false;

		this.currentitem = this.options.firstitem;

		if(this.options.pause!=-1)

			this.loop = true;

		else{

			this.loop = false;

			this.options.pause =2;	

		}

		this.previousitem=-1;

		if (typeof(this.options.trans) == "string") this.options.trans = {'tin':this.options.trans, 'tout':this.options.trans};

		

		window.addEvent('domready', function() {

			//get all mooqueeItems

			

			this.items = $$('#' + this.options.element + ' .' + this.options.cssitem);

			this.totalitems = this.items.length;

			if($(this.options.element).style.overflow != 'hidden')

				$(this.options.element).style.overflow = 'hidden';

			if($(this.options.element).style.position != 'relative')

				$(this.options.element).style.position = 'relative'; 



			this.setMooqueeFXs();

			this.setTrans(this.options.trans);//has setMooqueeItems in it



			if(this.options.startOnLoad)

				this.loopTimer = this.mooveAll.delay(this.options.pause*1000 ,this);

			if(this.options.pauseOnHover){

				$(this.options.element).addEvent('mouseover',function(){this.pauseMooquee()}.bind(this));

				$(this.options.element).addEvent('mouseout',function(){this.resumeMooquee()}.bind(this));

			}

		}.bind(this));

		

		

	},

	setMooqueeItems: function(){

		this.resetting =true;

		var i=0;

		

		this.items.each(function (element){

			if($(element).style.position != 'absolute')

				$(element).style.position = 'absolute';

			$(element).style.width = $(this.options.element).clientWidth + 'px';

			$(element).style.overflow = this.options.overflow;



			if(i == this.currentitem)

				this.itemFXs[i].set(this.resetStyle).set(this.inStyle);

			else

				this.itemFXs[i].set(this.resetStyle).set(this.startStyle);

           

			i++;

		}.bind(this));



		this.resetting =false;

	},

	setMooqueeFXs: function(){

		var i=0;

		this.items.each(function (element){

			this.itemFXs[i] = new Fx.Morph(element,{duration:(this.options.duration*1000)});

			i++;

		}.bind(this));

	},

	mooveAll: function(){

		if((this.currentitem + 1) == this.totalitems)

			citem = 0;

		else

			citem = this.currentitem + 1;

		this.moove(citem);



	},

	moove: function(itemnumber){

		if(itemnumber < this.totalitems)

		if(!this.mousedOver){

		if(itemnumber != this.currentitem){

			

			$clear(this.loopTimer);

			

			if(this.previousitem != -1){

				this.itemFXs[this.previousitem].cancel().set(this.resetStyle).set(this.startStyle);

				this.itemFXs[this.currentitem].cancel().set(this.resetStyle).set(this.inStyle);

				this.previousitem=-1;

			}



			this.returnpreviousitem = this.previousitem = this.currentitem;

			this.returncurrentitem = this.currentitem = itemnumber;

			this.options.onTransitionStart(this.returncurrentitem,this.returnpreviousitem);



				this.itemFXs[this.previousitem].start(this.outStyle).chain(function(){

					if(!this.resetting){

						this.itemFXs[this.previousitem].set(this.resetStyle).set(this.startStyle);

						this.previousitem=-1;

					}

				}.bind(this));



				(function(){ 

					this.itemFXs[this.currentitem].start(this.inStyle).chain(function(){

						this.options.onTransitionComplete(this.returncurrentitem,this.returnpreviousitem);

						if(this.loop == true)

							this.loopTimer = this.mooveAll.delay(this.options.pause*1000 ,this);

					}.bind(this));

				}).delay(this.inDelay*this.options.pause*1000 ,this);

			

		}

		}else{

			this.moove.delay(50 ,this,itemnumber);	

		}

		

	},

    setTrans: function(newTrans){

        this.startStyle = {}

        this.inStyle = {};

        this.outStyle = {};

        this.resetStyle = {};

        this.inDelay = 0;

        switch(newTrans.tin){

                case 'up':

                    this.startStyle = {'top': $(this.options.element).clientHeight};

                    this.inStyle = {'top': 0};

                break;

                case 'down':

                    this.startStyle = {'top': $(this.options.element).clientHeight * -1};

                    this.inStyle = {'top': 0};

                break;

                case 'left':

                    this.startStyle = {'left': $(this.options.element).clientWidth};

                    this.inStyle = {'left': 0};

                break;

                case 'right':

                    this.startStyle = {'left': $(this.options.element).clientWidth * -1};

                    this.inStyle = {'left': 0};

                break;

                case 'fade':

                    this.startStyle = {'opacity': 0};

                    this.inStyle = {'opacity': 1};

                break;

        }

        switch(newTrans.tout){

                case 'up':

                    this.outStyle = {'top': $(this.options.element).clientHeight * -1};

                    this.resetStyle = {'top': 0};

                break;

                case 'down':

                    this.outStyle = {'top': $(this.options.element).clientHeight};

                    this.resetStyle = {'top': 0};

                break;

                case 'left':

                    this.outStyle = {'left': $(this.options.element).clientWidth * -1};

                    this.resetStyle = {'left': 0};

                break;

                case 'right':

                    this.outStyle = {'left': $(this.options.element).clientWidth};

                    this.resetStyle = {'left': 0};

                break;

                case 'fade':

                    this.outStyle = {'opacity': 0};

                    this.resetStyle = {'opacity': 1};

                    this.inDelay = .5;

                break;

        }

        this.setMooqueeItems();

    },

	pauseMooquee: function(){

		if(this.previousitem != -1){

			this.itemFXs[this.previousitem].pause();

			this.itemFXs[this.currentitem].pause();

		}

		this.mousedOver = true;

	},

	resumeMooquee: function(){

		if(this.previousitem != -1){

			this.itemFXs[this.previousitem].resume();

			this.itemFXs[this.currentitem].resume();

		}

		this.mousedOver = false;

	},

	stopMooqueeLoop: function(){

		this.loop = false;

		this.options.pause = 2;

	}

});