/*
 *
 * 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;
      });

      // Tony: added this
      aLink.keydown(function(event) {
        if (event.which == 32) {
          aLink.click();
          return false;
        }
        //      alert(event.which);
      });

      // 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;
      });

      var rotate = function(direction) {
        var current = $(this).next("input");
        var group = $("input[name=" + current.attr("name") + "]");
        var pos;
        $(group).each(function(index) {
          if (this === current[0]) {
            pos = index;
            return false;
          }
        });
        pos = pos + direction;
        size = group.length;
        if (pos < 0) {
          return $(group[size - 1]);
        } else if (pos > size) {
          return $(group[0]);
        } else {
          return $(group[pos]);
        }
      }

      // Tony: added this
      aLink.keydown(function(event) {
        switch (event.which) {
          case 32:
            aLink.click();
            break;
          case 39: // right cursor ->
            rotate.call(this, +1).prev("a.jqTransformRadio").focus();
            break;
          case 37: // left cursor  <-
            rotate.call(this, -1).prev("a.jqTransformRadio").focus();
            break;
          default:
            return true;
        }
        return false;
        //alert(event.which);
      });


      // 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();
      // Tony: Commented the next lines - don't want label click functionality
      $('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; }

				  $ul.slideToggle('fast', function() {
				    // Tony: skipping this animation because it doesn't work propertly for long lists
				    //						var offSet = ($('a.selected', $ul).offset().top - $ul.offset().top);
				    //						$ul.animate({scrollTop: offSet});
				  });
				  return false;
			});


//			$("*", $ul).focus(function() {
//        alert("focus " + this);
//      });




      // 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);