/*
customFormElements 1.8b - style form elements on your own
by Maik Vlcek (http://www.mediavrog.net) - MIT-style license.
Copyright (c) 2008 Maik Vlcek (mediavrog.net)

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.

###CHANGELOG

#2.0 
TODO: mouseWheel Scrolling within select options


#1.9
- added basic fieldset functionality
- added custom events
- fixes for ie6; not completely reday for ie6
- setModuleOption / setModuleOptions now incrementally adds options by calling it more than once
(previous behaviour overrode already set options with the new options passed)

#1.8b
- code rewritten in order to make cfe modular

(thanks for hint: Peter @ mediavrog Blog)
- now supports "tabbing" between fields

(thanks for hint: TobSnyder @ mediavrog Blog)
- added selectAll/deselectAll Methods for Checkboxes
- now works with implicit labelling and no labelling


#1.6
- new requirenment: Class.Extras; Element.Dimensions not needed any more
- fixed ie flicker bug
- fixed visibility in safari
- added spacer.gif which gets height/width per css -> improved compatibility when resizing fonts (set this via option "spacer"; default is to "gfx/spacer.gif")
- setOptions() now used for - guess what - setting options
- fixed bug if there is no label


#1.5
- included psd file for fast styling startup
- code review/optimization
- changed event mouseover to mouseenter
- css property display:none applied to original checkboxes/radiobuttons instead of visibility:hidden
- added support for labels (has class "jsCheckboxLabel"; class:hover is "jsCheckboxLabelHover" ~ same for radiobuttons)


#1.2
(thanks for hint: pwnw31842 @ mootools forums)
- graphcical buttons are now spans
- graphcical buttons are inserted in dom at original input position (no more position absolute), so they hide when parent gets invisible

(thanks for hint: ej84 @ mootools forums)
- gfx images are now in a single file so they dont flicker on first statechange

#1.1
- code review/optimization

#1.0
- fixed radiobuttons behaviour (groups)

#0.9
- initial release

*/

var cfe = {};
cfe.module = {};
cfe.addon = {};

cfe.base = new Class({
	
	version: "1.9",
	
	options:{
		scope: false,
		spacer: "gfx/spacer.gif",
		toolTipsStyle: "label",
		onInit: Class.empty,
		onInitSingle: Class.empty,
		onBeforeInitSingle: Class.empty,
		onSetModuleOption: Class.empty,
		onRegisterModule: Class.empty,
		onUnregisterModule: Class.empty,
		onComplete: Class.empty
	},
		
	modules: {},
	moduleOptions: {},
	moduleOptionsAll: {},
	
	initialize: function(debug){
		this.options.debug = debug | false;
	},
	
	getVersion: function(){return this.version;},
	
	throwMsg: function(errText){
		this.options.debug?alert(errText):"";
	},
	
	/* call to register module */
	registerModule: function(mod){
		
		modObj = cfe.module[mod];
		
		if(!modObj.prototype.build && !modObj.prototype.noBuild){
			this.throwMsg.bind(this)("CustomFormElements: registration of Module '"+modObj.prototype.type+"' failed. It will NOT be available.\nReason: lack of obligatory 'build' function.");
			return false;
		}
		else{
			this.fireEvent("onRegisterModule", [mod,modObj]);
			this.modules[mod] = modObj;
			this.moduleOptions[mod] = {};
			return true;
		}
	},
	
	registerModules: function(mods){
		$each(mods,function(mod){
			this.registerModule(mod);
		},this);
	},
	
	unregisterModule: function(mod){
		modObj = cfe.module[mod];
		
		this.fireEvent("onUnregisterModule", [mod,modObj]);
		delete this.modules[mod];
	},
	
	unregisterModules: function(mods){
		$each(mods,function(mod){
			this.unregisterModule(mod);
		},this);
	},
	
	setModuleOption: function(mod,opt,val){
		
		modObj = cfe.module[mod];
		
		this.fireEvent("onSetModuleOption", [mod,modObj,opt,val]);
		
		if(!modObj){
			this.moduleOptionsAll[opt] = val;
		}
		else{
			this.moduleOptions[mod][opt] = val;
		}
	},

	setModuleOptions: function(mod,opt){
		
		$each(opt,function(option){
			this.setModuleOption(mod,option,opt[option]);
		}.bind(this));
		
	},

	init: function(options){

		this.setOptions(this.options, options);

		this.fireEvent("onInit");
			
		$each(this.modules,function(module,moduleName,i){
			
			var selector = module.prototype.selector;
			
			$ES(selector,this.options.scope || document.body).each(function(el,i){
				
				var basicOptions = {"instanceID": i,"spacer":this.options.spacer};

				this.fireEvent("onBeforeInitSingle", [el,i,basicOptions]);
			
				var single = new module(el,$merge(basicOptions,$merge(this.moduleOptions[moduleName],this.moduleOptionsAll)));
				
				this.fireEvent("onInitSingle", single);
				
			},this);
		},this);
		
		this.fireEvent("onComplete");
	}
});

cfe.base.implement(new Options,new Events);

// basic generic module; may be extended by modules to start off with standard behaviours
cfe.module.generic = new Class({
	// type of cfe; e.g. Selector, Checkbox or Radiobutton
	type : "interface",
	
	// basic options for all cfes and always available
	options: {
		instanceID:0,
		spacer:false,
		aliasType: "span",
		onHover: Class.empty,
		onUnhover: Class.empty,
		onFocus: Class.empty,
		onBlur: Class.empty,
		onClick: Class.empty	
	},
	
	/**
	 * initialization of cfe
	 * set options, add focus/blur-Events to original
	 * [call procedeLabel] 			add events to label of cfe
	 * !call build					must be implemented by cfe; 
	 * 
	 * @param {Object} original
	 * @param {Object} opt
	 */ 
	initialize: function(original,opt){
			this.setOptions(this.options, opt);
			
		// set original element and add focus/blur-Events
			this.o = original.addEvents({
				"focus": this.setFocus.bind(this),
				"blur": this.removeFocus.bind(this)
			});
			
		// is there no other way to keep this object
			this.o.cfe = this;
			
		// specific initialization
			this.initializeAdv.bind(this)();
		
		// each cfe must implement this function
			this.build.bind(this)();	
	},
	
	// may be extended by cfe
	initializeAdv: function(){
		// get label for this element
		this.procedeLabel.bind(this)();
	},
	
	/**
	 * checks for appropriate label and adds events if found 
	 */
	procedeLabel: function(){
		
		this.implicitLabel = false;
		
		// get label for original input element
		if(this.o.id)
			this.l = $E("label[for="+this.o.id+"]");
		
		// no label was found for id, so try parent
		if(!this.l){
			this.l = this.o.getParent();
			this.l.getTag() == "label"?this.implicitLabel = true:"";			
		}
		
		if(this.l.getTag() == "label"){
			// remove for property
			this.dontRemoveForFromLabel?"":this.l.removeProperty("for");
		
			// add adequate className, add stdEvents
			this.l.addClass("for_"+ (this.o.id || (this.o.name+this.o.value).replace("]","-").replace("[","") )+" js"+this.type+"L");

			// add stdevents
			this.l.addEvents({
				"mouseover": this.hover.bind(this),
				"mouseout": this.unhover.bind(this),
				"click":this.clicked.bindWithEvent(this)
			});
		}
		else{
			this.l = false;
			return false;
		}
	},
	
	/**
	 * hides the original input element and creates a span as replacement/alias
	 */
	hideAndReplace: function(){
		// hide original input
			this.o.setStyles({"position":"absolute","left":"-999px"});
			
			// fix for internet explorer
			if(window.ie){this.o.setStyles({"position":"static","width":"0"});}
			
		// create standard span as replacement
			this.a = new Element(this.options.aliasType,{
				"class": "js"+this.type,
				"events": {
					"mouseover": this.hover.bind(this),
					"mouseout": this.unhover.bind(this),
					"click": this.setFocus.bind(this)	
				}
			}).setStyle("cursor","pointer").injectBefore(this.o);
			
		// check for implicit labels;
			if(!this.implicitLabel){
				this.a.addEvent("click",this.clicked.bind(this));
			}
	},

	/**
	 * standard mouseover-behaviour
	 * add hover state to alias and label (if existent)
	 */
	hover: function(){
		this.a.addClass("H");
		this.l?this.l.addClass("H"):"";
		
		this.fireEvent("onHover");
	},
	
	/**
	 * standard mouseout-behaviour
	 * removes hover state from alias and label (if existent)
	 */
	unhover: function(){
		this.a.removeClass("H");
		this.l?this.l.removeClass("H"):"";
		
		this.fireEvent("onUnhover");
	},

	/**
	 * standard focus-behaviour
	 * adds focus state to alias and label (if existent)
	 */
	setFocus: function(){
		this.a.addClass("F");
		this.l?this.l.addClass("F"):"";
		
		this.fireEvent("onFocus");
	},

	/**
	 * standard blur-behaviour
	 * removes focus state from alias and label (if existent)
	 */
	removeFocus: function(){
		this.a.removeClass("F");
		this.l?this.l.removeClass("F"):"";
		
		this.fireEvent("onBlur");
	},
	
	clicked: function(){
		this.o.focus();
		
		this.fireEvent("onClick");
	}
});
cfe.module.generic.implement(new Options,new Events);