/*
 * UPDATED: 25.09.08
 *
 * jqTransform
 * by mathieu vilaplana mvilaplana@dfc-e.com
 * Designer ghyslain armand garmand@dfc-e.com
 *
 *
 * Version 1.0
 *
 ******************************************** */
 
(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 $select = $(this).parents(".jqTransformSelectWrapper:first").find("select").get(0);
                        //do not hide if clicke on the label object associated to the select
                        if( !(oTarget && $select.oLabel && $select.oLabel.get(0) == oTarget.get(0)) ){$(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 safari = $.browser.safari; /* We need to check for safari to fix the input:text problem */
                        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 */
                        safari && $wrapper.addClass('jqTransformSafari');
                        safari && $input.css('width',$wrapper.width()+16);
                        this.wrapper = $wrapper;
                        
                });
        };
        
        /***************************
          Check Boxes
         ***************************/
        $.fn.jqTransCheckBox = function(){
                return this.each(function(){
                        var $input = $(this);
                        var inputSelf = this;
                        
                        if($input.hasClass('jqTransformHidden')) {return;}
        
                        var oLabel=jqTransformGetLabel($input);
                        $input.addClass('jqTransformHidden').wrap('<span class="jqTransformCheckboxWrapper"></span>');
                        var $wrapper = $input.parent();
                        var aLink = $('<a href="#" class="jqTransformCheckbox"></a>');
                        $wrapper.prepend(aLink);
                        // Click Handler
                        aLink.click(function(){
                                        var $a = $(this);
                                        if(inputSelf.onclick)
                        inputSelf.click();
                                        if (inputSelf.checked===true){
                                                inputSelf.checked = false;
                                                $a.removeClass('jqTransformChecked');
                                        }
                                        else {
                                                inputSelf.checked = true;
                                                $a.addClass('jqTransformChecked');
                                        }
                                        
                                        inputSelf.onchange && inputSelf.onchange();
                                        return false;
                        });
                        oLabel && oLabel.click(function(){aLink.trigger('click');});
                        // set the default state
                        this.checked && aLink.addClass('jqTransformChecked');
                });
        };
        /***************************
          Radio Buttons
         ***************************/
        $.fn.jqTransRadio = function(){
                return this.each(function(){
                        var $input = $(this);
                        var inputSelf = this;
                                
                        if($input.hasClass('jqTransformHidden')) {return;}
        
                        oLabel = jqTransformGetLabel($input);
                        $input.addClass('jqTransformHidden').wrap('<span class="jqTransformRadioWrapper"></span>');
                        var $wrapper = $input.parent();
                        var aLink = $('<a href="#" class="jqTransformRadio" rel="'+ this.name +'"></a>');
                        $wrapper.prepend(aLink);
                        // Click Handler
                        aLink
                                .each(function(){
                                        this.radioElem = inputSelf;
                                        $(this).click(function(){
                                                var $a = $(this).addClass('jqTransformChecked');
                                                inputSelf.checked = true;
                                                if(inputSelf.onclick)
                        inputSelf.click();

                                                // uncheck all others of same name
                                                $('a.jqTransformRadio[rel="'+ $a.attr('rel') +'"]',inputSelf.form).not($a).each(function(){
                                                        $(this).removeClass('jqTransformChecked');
                                                        this.radioElem.checked = false;
                                                });
                                                
                                                inputSelf.onchange && inputSelf.onchange();
                                                return false;
                                        });
                                });
                        oLabel && oLabel.click(function(){aLink.trigger('click');});
                        // 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">&nbsp;</td><td id="jqTransformTextarea-tm">&nbsp;</td><td id="jqTransformTextarea-tr">&nbsp;</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">&nbsp;</td><td id="jqTransformTextarea-bm">&nbsp;</td><td id="jqTransformTextarea-br">&nbsp;</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;}
        
                        var oLabel  =  jqTransformGetLabel($select);
                        /* First thing we do is Wrap it */
                        $select
                                .addClass('jqTransformHidden')
                                .wrap('<div class="jqTransformSelectWrapper"></div>')
                        ;
                        var $wrapper = $select.parent().css({zIndex: 10-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());
                        /* Now we add the options */
                        $('option', this).each(function(i){
                                var oLi = $('<li><a href="#" index="'+ i +'">'+ $(this).html() +'</a></li>');
                                $ul.append(oLi);
                        });
                        /* Hide the ul and add click handler to the a */
                        $ul.hide().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();}
                                        $ul.slideToggle('normal', function(){
                                                var offSet = ($('a.selected', $ul).offset().top - $ul.offset().top);
                                                $ul.animate({scrollTop: offSet});
                                        });
                                        return false;
                                })
                        ;
                        //set the new width
                        var iSelectWidth = $select.width();
                        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);
                        
                });
        };
        $.fn.jqTransform = function(options){
                var self = this;
                var safari = $.browser.safari; /* We need to check for safari to fix the input:text problem */
                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
                        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);