/*
 *
 * 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 = {preloadimg:true};
	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 ul: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(){
			var newbtn = $('<button id="'+ this.id +'" name="'+ this.name +'" type="'+ this.type +'" class="'+ this.classname +' jqtransformbutton"><span><span>'+ $(this).attr('value') +'</span></span>')
				.hover(function(){newbtn.addclass('jqtransformbutton_hover');},function(){newbtn.removeclass('jqtransformbutton_hover')})
				.mousedown(function(){newbtn.addclass('jqtransformbutton_click')})
				.mouseup(function(){newbtn.removeclass('jqtransformbutton_click')})
			;
			$(this).replacewith(newbtn);
		});
	};
	
	/***************************
	  text fields 
	 ***************************/
	$.fn.jqtransinputtext = function(){
		return this.each(function(){
			var $input = $(this);
			if($input.attr("name")=="pic"){return;}else{
			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;

			//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);
			//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;
				
			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);
			
			$input.change(function(){
				inputself.checked && alink.addclass('jqtransformchecked') || alink.removeclass('jqtransformchecked');
				return true;
			});
			// click handler
			alink.click(function(){
				if($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"></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(){
		return this.each(function(index){
			var $select = $(this);

			if($select.hasclass('jqtransformhidden')) {return;}
			if($select.attr('multiple')) {return;}

			var olabel  =  jqtransformgetlabel($select);
			/* first thing we do is wrap it */
			var $wrapper = $select
				.addclass('jqtransformhidden')
				.wrap('<div class="jqtransformselectwrapper"></div>')
				.parent()
				.css({zindex: 11-index})
			;
			
			/* now add the html for the select */
			$wrapper.prepend('<div><span></span><a href="#" class="jqtransformselectopen"></a></div><ul></ul>');
			//var $ul = $('ul', $wrapper).css('width',$select.width()).hide();   修改过
			var $ul = $('ul', $wrapper).css('width',"100px").hide();
			/* now we add the options */
			$('option', this).each(function(i){
				var oli = $('<li><a href="#" index="'+ i +'" style="height:15px;">'+ $(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].onchange) { $select[0].selectedindex = $(this).attr('index'); $select[0].onchange(); }
					$select[0].selectedindex = $(this).attr('index');
					$('span:eq(0)', $wrapper).html($(this).html());
					$ul.hide();
					return false;
			});
			/* set the default */
			$('a:eq('+ this.selectedindex +')', $ul).click();
			$('span:first', $wrapper).click(function(){$("a.jqtransformselectopen",$wrapper).trigger('click');});
			olabel && olabel.click(function(){$("a.jqtransformselectopen",$wrapper).trigger('click');});
			this.olabel = olabel;
			
			/* 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( $ul.css('display') == 'none' ) {jqtransformhideselect();} 
					if($select.attr('disabled')){return false;}

					$ul.slidetoggle('fast', function(){					
						var offset = ($('a.selected', $ul).offset().top - $ul.offset().top);
						$ul.animate({scrolltop: offset});
					});
					return false;
				})
			;

			// set the new width
			var iselectwidth = $select.outerwidth();
			var ospan = $('span:first',$wrapper);
			var newwidth = (iselectwidth > ospan.innerwidth())?iselectwidth+olinkopen.outerwidth():$wrapper.width();
			$wrapper.css('width',newwidth);
			$ul.css('width',newwidth-2);
			//$wrapper.css('width',"90px");
			//$ul.css('width',"90px");
			ospan.css({width:iselectwidth});
		
			// 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
			$ul.css({display:'block',visibility:'hidden'});
			var iselectheight = ($('li',$ul).length)*($('li:first',$ul).height());//+1 else bug ff
			(iselectheight < $ul.height()) && $ul.css({height:iselectheight,'overflow':'hidden'});//hidden else bug with ff
			$ul.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');
			
			$('input:submit, input:reset, input[type="button"]', this).jqtransinputbutton();			
			$('input:text, input:password', this).jqtransinputtext();			
			$('input:checkbox', this).jqtranscheckbox();
			$('input:radio', this).jqtransradio();
			$('textarea', this).jqtranstextarea();
			
			if( $('select', this).jqtransselect().length > 0 ){jqtransformadddocumentlistener();}
			selfform.bind('reset',function(){var action = function(){jqtransformreset(this);}; window.settimeout(action, 10);});
			
			//preloading dont needed anymore since normal, focus and hover image are the same one
			/*if(opt.preloadimg && !jqtransformimgpreloaded){
				jqtransformimgpreloaded = true;
				var oinputtext = $('input:text:first', selfform);
				if(oinputtext.length > 0){
					//pour ie on eleve les ""
					var strwrapperimgurl = oinputtext.get(0).wrapper.css('background-image');
					jqtransformpreloadhoverfocusimg(strwrapperimgurl);					
					var strinnerimgurl = $('div.jqtransforminputinner',$(oinputtext.get(0).wrapper)).css('background-image');
					jqtransformpreloadhoverfocusimg(strinnerimgurl);
				}
				
				var otextarea = $('textarea',selfform);
				if(otextarea.length > 0){
					var otable = otextarea.get(0).otable;
					$('td',otable).each(function(){
						var strimgback = $(this).css('background-image');
						jqtransformpreloadhoverfocusimg(strimgback);
					});
				}
			}*/
			
			
		}); /* end form each */
				
	};/* end the plugin */

})(jquery);