[Sommaire] [Imprimer]

   1  /*
   2      cssQuery, version 2.0.2 (2005-08-19)
   3      Copyright: 2004-2005, Dean Edwards (http://dean.edwards.name/)
   4      License: http://creativecommons.org/licenses/LGPL/2.1/
   5  */
   6  
   7  /* Thanks to Bill Edney */
   8  
   9  cssQuery.addModule("css-level3", function() {
  10  
  11  // -----------------------------------------------------------------------
  12  // selectors
  13  // -----------------------------------------------------------------------
  14  
  15  // indirect sibling selector
  16  selectors["~"] = function($results, $from, $tagName, $namespace) {
  17      var $element, i;
  18      for (i = 0; ($element = $from[i]); i++) {
  19          while ($element = nextElementSibling($element)) {
  20              if (compareTagName($element, $tagName, $namespace))
  21                  $results.push($element);
  22          }
  23      }
  24  };
  25  
  26  // -----------------------------------------------------------------------
  27  // pseudo-classes
  28  // -----------------------------------------------------------------------
  29  
  30  // I'm hoping these pseudo-classes are pretty readable. Let me know if
  31  //  any need explanation.
  32  
  33  pseudoClasses["contains"] = function($element, $text) {
  34      $text = new RegExp(regEscape(getText($text)));
  35      return $text.test(getTextContent($element));
  36  };
  37  
  38  pseudoClasses["root"] = function($element) {
  39      return $element == getDocument($element).documentElement;
  40  };
  41  
  42  pseudoClasses["empty"] = function($element) {
  43      var $node, i;
  44      for (i = 0; ($node = $element.childNodes[i]); i++) {
  45          if (thisElement($node) || $node.nodeType == 3) return false;
  46      }
  47      return true;
  48  };
  49  
  50  pseudoClasses["last-child"] = function($element) {
  51      return !nextElementSibling($element);
  52  };
  53  
  54  pseudoClasses["only-child"] = function($element) {
  55      $element = $element.parentNode;
  56      return firstElementChild($element) == lastElementChild($element);
  57  };
  58  
  59  pseudoClasses["not"] = function($element, $selector) {
  60      var $negated = cssQuery($selector, getDocument($element));
  61      for (var i = 0; i < $negated.length; i++) {
  62          if ($negated[i] == $element) return false;
  63      }
  64      return true;
  65  };
  66  
  67  pseudoClasses["nth-child"] = function($element, $arguments) {
  68      return nthChild($element, $arguments, previousElementSibling);
  69  };
  70  
  71  pseudoClasses["nth-last-child"] = function($element, $arguments) {
  72      return nthChild($element, $arguments, nextElementSibling);
  73  };
  74  
  75  pseudoClasses["target"] = function($element) {
  76      return $element.id == location.hash.slice(1);
  77  };
  78  
  79  // UI element states
  80  
  81  pseudoClasses["checked"] = function($element) {
  82      return $element.checked;
  83  };
  84  
  85  pseudoClasses["enabled"] = function($element) {
  86      return $element.disabled === false;
  87  };
  88  
  89  pseudoClasses["disabled"] = function($element) {
  90      return $element.disabled;
  91  };
  92  
  93  pseudoClasses["indeterminate"] = function($element) {
  94      return $element.indeterminate;
  95  };
  96  
  97  // -----------------------------------------------------------------------
  98  //  attribute selector tests
  99  // -----------------------------------------------------------------------
 100  
 101  AttributeSelector.tests["^="] = function($attribute, $value) {
 102      return "/^" + regEscape($value) + "/.test(" + $attribute + ")";
 103  };
 104  
 105  AttributeSelector.tests["$="] = function($attribute, $value) {
 106      return "/" + regEscape($value) + "$/.test(" + $attribute + ")";
 107  };
 108  
 109  AttributeSelector.tests["*="] = function($attribute, $value) {
 110      return "/" + regEscape($value) + "/.test(" + $attribute + ")";
 111  };
 112  
 113  // -----------------------------------------------------------------------
 114  //  nth child support (Bill Edney)
 115  // -----------------------------------------------------------------------
 116  
 117  function nthChild($element, $arguments, $traverse) {
 118      switch ($arguments) {
 119          case "n": return true;
 120          case "even": $arguments = "2n"; break;
 121          case "odd": $arguments = "2n+1";
 122      }
 123  
 124      var $$children = childElements($element.parentNode);
 125  	function _checkIndex($index) {
 126          var $index = ($traverse == nextElementSibling) ? $$children.length - $index : $index - 1;
 127          return $$children[$index] == $element;
 128      };
 129  
 130      //    it was just a number (no "n")
 131      if (!isNaN($arguments)) return _checkIndex($arguments);
 132  
 133      $arguments = $arguments.split("n");
 134      var $multiplier = parseInt($arguments[0]);
 135      var $step = parseInt($arguments[1]);
 136  
 137      if ((isNaN($multiplier) || $multiplier == 1) && $step == 0) return true;
 138      if ($multiplier == 0 && !isNaN($step)) return _checkIndex($step);
 139      if (isNaN($step)) $step = 0;
 140  
 141      var $count = 1;
 142      while ($element = $traverse($element)) $count++;
 143  
 144      if (isNaN($multiplier) || $multiplier == 1)
 145          return ($traverse == nextElementSibling) ? ($count <= $step) : ($step >= $count);
 146  
 147      return ($count % $multiplier) == $step;
 148  };
 149  
 150  }); // addModule