/*
 *
 * jqTransform
 * by mathieu vilaplana mvilaplana@dfc-e.com
 * Designer ghyslain armand garmand@dfc-e.com
 *
 *
 * Version 1.0 25.09.08
 * Version 1.1 06.08.09
 * Add event click on Checkbox and Radio
 * Auto calculate the size of a select element
 * Can now, disabled the elements
 * Correct bug in ff if click on select (overflow=hidden)
 * No need any more preloading !!
 * 
 ******************************************** */
 
(function($){
	var defaultOptions = {
			styleSelect: false,
			styleText: false,
			styleTextarea: false,
			styleCheckbox: false,
			styleButton: false,
			styleRadio: false,
			numSelectOptions: 7
			
	};
	var jqTransformImgPreloaded = false;

	var jqTransformPreloadHoverFocusImg = function(strImgUrl) {
		//guillemets to remove for ie
		strImgUrl = strImgUrl.replace(/^url\((.*)\)/,'$1').replace(/^\"(.*)\"$/,'$1');
		var imgHover = new Image();
		imgHover.src = strImgUrl.replace(/\.([a-zA-Z]*)$/,'-hover.$1');
		var imgFocus = new Image();
		imgFocus.src = strImgUrl.replace(/\.([a-zA-Z]*)$/,'-focus.$1');				
	};

	
	/***************************
	  Labels
	***************************/
	var jqTransformGetLabel = function(objfield){
		var selfForm = $(objfield.get(0).form);
		var oLabel = objfield.next();
		if(!oLabel.is('label')) {
			oLabel = objfield.prev();
			if(oLabel.is('label')){
				var inputname = objfield.attr('id');
				if(inputname){
					oLabel = selfForm.find('label[for="'+inputname+'"]');
				} 
			}
		}
		if(oLabel.is('label')){return oLabel.css('cursor','pointer');}
		return false;
	};
	
	/* Hide all open selects */
	var jqTransformHideSelect = function(oTarget){
		var ulVisible = $('.jqTransformSelectWrapper .ulwrapper:visible');
		ulVisible.each(function(){
			var oSelect = $(this).parents(".jqTransformSelectWrapper:first").find("select").get(0);
			//do not hide if click on the label object associated to the select
			if( !(oTarget && oSelect.oLabel && oSelect.oLabel.get(0) == oTarget.get(0)) ){$(this).hide();}
		});
	};
	/* Check for an external click */
	var jqTransformCheckExternalClick = function(event) {
		if ($(event.target).parents('.jqTransformSelectWrapper').length === 0) { jqTransformHideSelect($(event.target)); }
	};

	/* Apply document listener */
	var jqTransformAddDocumentListener = function (){
		$(document).mousedown(jqTransformCheckExternalClick);
	};	
			
	/* Add a new handler for the reset action */
	var jqTransformReset = function(f){
		var sel;
		$('.jqTransformSelectWrapper select', f).each(function(){sel = (this.selectedIndex<0) ? 0 : this.selectedIndex; $('ul', $(this).parent()).each(function(){$('a:eq('+ sel +')', this).click();});});
		$('a.jqTransformCheckbox, a.jqTransformRadio', f).removeClass('jqTransformChecked');
		$('input:checkbox, input:radio', f).each(function(){if(this.checked){$('a', $(this).parent()).addClass('jqTransformChecked');}});
	};

	/***************************
	  Buttons
	 ***************************/
	$.fn.jqTransInputButton = function(){
		return this.each(function(){
			$(this).replaceWith('<button id="'+ this.id +'" name="'+ this.name +'" type="'+ this.type +'" class="'+ this.className +' jqTransformButton"><span><span>'+ $(this).attr('value') +'</span></span>');
		});
	};
	
	/***************************
	  Text Fields 
	 ***************************/
	$.fn.jqTransInputText = function(){
		return this.each(function(){
			var $input = $(this);
	
			if($input.hasClass('jqtranformdone') || !$input.is('input')) {return;}
			$input.addClass('jqtranformdone');
	
			var oLabel = jqTransformGetLabel($(this));
			oLabel && oLabel.bind('click',function(){$input.focus();});
	
			var inputSize=$input.width();
			if($input.attr('size')){
				inputSize = $input.attr('size')*10;
				$input.css('width',inputSize);
			}
			
			$input.addClass("jqTransformInput").wrap('<div class="jqTransformInputWrapper"><div class="jqTransformInputInner"><div></div></div></div>');
			var $wrapper = $input.parent().parent().parent();
			$wrapper.css("width", inputSize+10);
			$input
				.focus(function(){$wrapper.addClass("jqTransformInputWrapper_focus");})
				.blur(function(){$wrapper.removeClass("jqTransformInputWrapper_focus");})
				.hover(function(){$wrapper.addClass("jqTransformInputWrapper_hover");},function(){$wrapper.removeClass("jqTransformInputWrapper_hover");})
			;
	
			/* If this is safari we need to add an extra class */
			$.browser.safari && $wrapper.addClass('jqTransformSafari');
			$.browser.safari && $input.css('width',$wrapper.width()+16);
			this.wrapper = $wrapper;
			
		});
	};
	
	/***************************
	  Check Boxes 
	 ***************************/	
	$.fn.jqTransCheckBox = function(){
		return this.each(function(){
			if($(this).hasClass('jqTransformHidden')) {return;}

			var $input = $(this);
			var inputSelf = this;
			var margint = $input.css('margin-top');
			var marginb = $input.css('margin-bottom');
			var marginr = $input.css('margin-right');
			var marginl = $input.css('margin-left');

			//set the click on the label
			var oLabel=jqTransformGetLabel($input);
			oLabel && oLabel.click(function(){aLink.trigger('click');});
			
			var aLink = $('<a href="#" class="jqTransformCheckbox"></a>');
			//wrap and add the link
			$input.addClass('jqTransformHidden').wrap('<span class="jqTransformCheckboxWrapper"></span>').parent().prepend(aLink);
			$wrapper = $input.parent();
			$wrapper.css({'margin-top':margint,'margin-bottom':marginb,'margin-left':marginl,'margin-right':marginr});
			//on change, change the class of the link
			$input.change(function(){
				this.checked && aLink.addClass('jqTransformChecked') || aLink.removeClass('jqTransformChecked');
				return true;
			});
			// Click Handler, trigger the click and change event on the input
			aLink.click(function(){
				//do nothing if the original input is disabled
				if($input.attr('disabled')){return false;}
				//trigger the envents on the input object
				$input.trigger('click').trigger("change");	
				return false;
			});

			// set the default state
			this.checked && aLink.addClass('jqTransformChecked');		
		});
	};
	/***************************
	  Radio Buttons 
	 ***************************/	
	$.fn.jqTransRadio = function(){
		return this.each(function(){
			if($(this).hasClass('jqTransformHidden')) {return;}

			var $input = $(this);
			var inputSelf = this;
			
			var margint = $input.css('margin-top');
			var marginb = $input.css('margin-bottom');
			var marginr = $input.css('margin-right');
			var marginl = $input.css('margin-left');
				
			oLabel = jqTransformGetLabel($input);
			oLabel && oLabel.click(function(){aLink.trigger('click');});
	
			var aLink = $('<a href="#" class="jqTransformRadio" rel="'+ this.name +'"></a>');
			$input.addClass('jqTransformHidden').wrap('<span class="jqTransformRadioWrapper"></span>').parent().prepend(aLink);
			$wrapper = $input.parent();
			$wrapper.css({'margin-top':margint,'margin-bottom':marginb,'margin-left':marginl,'margin-right':marginr});
			
			$input.change(function(){
				inputSelf.checked && aLink.addClass('jqTransformChecked') || aLink.removeClass('jqTransformChecked');
				return true;
			});
			// Click Handler
			aLink.click(function(){
				if($input.attr('disabled')){return false;}
				$input.trigger('click').trigger('change');
	
				// uncheck all others of same name input radio elements
				$('input[name="'+$input.attr('name')+'"]',inputSelf.form).not($input).each(function(){
					$(this).attr('type')=='radio' && $(this).trigger('change');
				});
	
				return false;					
			});
			// set the default state
			inputSelf.checked && aLink.addClass('jqTransformChecked');
		});
	};
	
	/***************************
	  TextArea 
	 ***************************/	
	$.fn.jqTransTextarea = function(){
		return this.each(function(){
			var textarea = $(this);
	
			if(textarea.hasClass('jqtransformdone')) {return;}
			textarea.addClass('jqtransformdone');
	
			oLabel = jqTransformGetLabel(textarea);
			oLabel && oLabel.click(function(){textarea.focus();});
			
			var strTable = '<table cellspacing="0" cellpadding="0" border="0" class="jqTransformTextarea">';
			strTable +='<tr><td id="jqTransformTextarea-tl"></td><td id="jqTransformTextarea-tm"></td><td id="jqTransformTextarea-tr"></td></tr>';
			strTable +='<tr><td id="jqTransformTextarea-ml">&nbsp;</td><td id="jqTransformTextarea-mm"><div></div></td><td id="jqTransformTextarea-mr">&nbsp;</td></tr>';	
			strTable +='<tr><td id="jqTransformTextarea-bl"></td><td id="jqTransformTextarea-bm"></td><td id="jqTransformTextarea-br"></td></tr>';
			strTable +='</table>';					
			var oTable = $(strTable)
					.insertAfter(textarea)
					.hover(function(){
						!oTable.hasClass('jqTransformTextarea-focus') && oTable.addClass('jqTransformTextarea-hover');
					},function(){
						oTable.removeClass('jqTransformTextarea-hover');					
					})
				;
				
			textarea
				.focus(function(){oTable.removeClass('jqTransformTextarea-hover').addClass('jqTransformTextarea-focus');})
				.blur(function(){oTable.removeClass('jqTransformTextarea-focus');})
				.appendTo($('#jqTransformTextarea-mm div',oTable))
			;
			this.oTable = oTable;
			if($.browser.safari){
				$('#jqTransformTextarea-mm',oTable)
					.addClass('jqTransformSafariTextarea')
					.find('div')
						.css('height',textarea.height())
						.css('width',textarea.width())
				;
			}
		});
	};
	
	/***************************
	  Select 
	 ***************************/	
	$.fn.jqTransSelect = function(opt){
		
		return this.each(function(index){
			var $select = $(this);

			if($select.hasClass('jqTransformHidden')) {return;}
			if($select.attr('multiple')) {return;}
			if($select.parent().parent().css('display') == 'none') return;
			
			var height = $select.outerHeight();
			var width = $select.outerWidth();
			var bgColor = $select.css('background-color');
			var bgImg = $select.css('background-image');
			var margint = $select.css('margin-top');
			var marginb = $select.css('margin-bottom');
			var marginr = $select.css('margin-right');
			var marginl = $select.css('margin-left') == 'auto' ? '0' : $select.css('margin-left');
			var fontSize = $select.css('font-size');
			var z = $select.css('z-index');
			var oLabel = jqTransformGetLabel($select);
			var oClass = $select.attr('class');
			
			if(z == 'auto') z = 0;
			else z = parseInt(z);
			z = Math.max(z+10-index,0);
			
			/* First thing we do is Wrap it */
			$select.addClass('jqTransformHidden').wrap('<div class="jqTransformSelectWrapper"></div>');
			
			var $wrapper = $select.parent().css({zIndex: z});
						
			/* Now add the html for the select */
			$wrapper.prepend('<div><span></span><a href="" class="jqTransformSelectOpen"></a></div><div class="ulwrapper"><ul></ul></div>');
			var $ul = $('ul', $wrapper);
			var $ulwrapper = $ul.parent();
			
			/* Now we add the options */
			$('option', this).each(function(i){							
				var oLi = $('<li><a href="#" style="white-space: nowrap;" ref="'+$(this).val()+'" index="'+ i +'">'+ $(this).html() +'</a></li>');
				$ul.append(oLi);
			});
									
			/* Add click handler to the a */
			$ul.find('a').click(function(){
					$('a.selected', $wrapper).removeClass('selected');
					$(this).addClass('selected');	
					/* Fire the onchange event */
					if ($select[0].selectedIndex != $(this).attr('index') ) { $select[0].selectedIndex = $(this).attr('index'); $select.change(); }
					$select[0].selectedIndex = $(this).attr('index');
					$('span:eq(0)', $wrapper).html($(this).html());
					$ulwrapper.hide();
					$('a:first',$ul).focus();
					return false;
			});
			/* Set the default */

			/* Apply the click handler to the Open */
			var $oLinkOpen = $('a.jqTransformSelectOpen', $wrapper)
				.click(function(){
					//Check if box is already open to still allow toggle, but close all other selects
					if( $ulwrapper.css('display') == 'none' ) {jqTransformHideSelect();} 
					if($select.attr('disabled')){return false;}
					$ulwrapper.slideToggle('normal', function(){
						if( $(this).css('display') == 'block' ){
							$('a.selected', $ul).focus();
						}
					});
					return false;
				});
			
			$('a:eq('+ this.selectedIndex +')', $ul).click();
			$('span:first', $wrapper).click(function(){$oLinkOpen.trigger('click');});
			oLabel && oLabel.click(function(){$oLinkOpen.trigger('click');});
			
			if (oClass) $wrapper.addClass(oClass+'_select');
			//set some css 
			$wrapper.css({'height': height,'width':width,'line-height':height+'px','margin':'0','margin-top':margint,'margin-bottom':marginb,'margin-left':marginl,'margin-right':marginr,'background-color':bgColor,'background-image':bgImg,'font-size':fontSize});
			//calculate span width
			var oSpan = $('span:first',$wrapper);
			oSpan.width(0);
			var oSpanwidth = width - oSpan.outerWidth();
			oSpan.css({'width':oSpanwidth,'height': height,'line-height': height+'px'});

			// Calculate the height if necessary, less elements that the default height
			//show the ul to calculate the block, if ul is not displayed li height value is 0
			$ulwrapper.css({display:'block',visibility:'hidden'});
			
			var liHeight = $('li:first',$ul).height();
			var visibleChilds = Math.min($('li',$ul).length, opt.numSelectOptions);
			$ulwrapper.css({'height':visibleChilds * liHeight,'width':width}); /*,'top':height*/
			$ulwrapper.jScrollPane({scrollbarWidth: $oLinkOpen.width(), scrollbarMargin: 0});
			
			$ulwrapper.css({display:'none',visibility:'visible'});
		});
	};
	
	$.fn.jqTransform = function(options){
		var opt = $.extend({},defaultOptions,options);

		/* each form */
		 return this.each(function(){
			var selfForm = $(this);
			if(selfForm.hasClass('jqtransformdone')) {return;}
			selfForm.addClass('jqtransformdone');
			
			
			if(opt.styleButton) $('input:submit, input:reset, input[type="button"]', this).jqTransInputButton();			
			if(opt.styleText) $('input:text, input:password', this).jqTransInputText();			
			if(opt.styleCheckbox)$('input:checkbox', this).jqTransCheckBox();
			if(opt.styleRadio)$('input:radio', this).jqTransRadio();
			if(opt.styleTextarea)$('textarea', this).jqTransTextarea();
			
			if( opt.styleSelect && $('select', this).jqTransSelect(opt).length > 0 ){jqTransformAddDocumentListener();}
			selfForm.bind('reset',function(){var action = function(){jqTransformReset(this);}; window.setTimeout(action, 10);});
			
			
		}); /* End Form each */
				
	};/* End the Plugin */

})(jQuery);