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/*

 *

 * 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><span></span><a href="#" class="jqTransformSelectOpen"></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);