/*
 *
 * 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($input.hasClass('jqtranformdone') || !$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">&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(){
        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: 10-index})
            ;
            
            /* Now add the html for the select */
            $wrapper.prepend('<div class="jqTransformSelect"><span></span><a href="#" class="jqTransformSelectOpen"> <span></span> </a></div><ul></ul>');
            var $ul = $('ul', $wrapper).css('width',$select.width()).hide();
            /* Now we add the options */
            $('option', this).each(function(i){
                var oLi = $('<li><a href="#" 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].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);
            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);