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/*
cssQuery, version 2.0.2 (2005-08-19)
Copyright: 2004-2005, Dean Edwards (http://dean.edwards.name/)
License: http://creativecommons.org/licenses/LGPL/2.1/
*/
cssQuery.addModule("css-level2", function() {
// -----------------------------------------------------------------------
// selectors
// -----------------------------------------------------------------------
// child selector
selectors[">"] = function($results, $from, $tagName, $namespace) {
var $element, i, j;
for (i = 0; i < $from.length; i++) {
var $subset = childElements($from[i]);
for (j = 0; ($element = $subset[j]); j++)
if (compareTagName($element, $tagName, $namespace))
$results.push($element);
}
};
// sibling selector
selectors["+"] = function($results, $from, $tagName, $namespace) {
for (var i = 0; i < $from.length; i++) {
var $element = nextElementSibling($from[i]);
if ($element && compareTagName($element, $tagName, $namespace))
$results.push($element);
}
};
// attribute selector
selectors["@"] = function($results, $from, $attributeSelectorID) {
var $test = attributeSelectors[$attributeSelectorID].test;
var $element, i;
for (i = 0; ($element = $from[i]); i++)
if ($test($element)) $results.push($element);
};
// -----------------------------------------------------------------------
// pseudo-classes
// -----------------------------------------------------------------------
pseudoClasses["first-child"] = function($element) {
return !previousElementSibling($element);
};
pseudoClasses["lang"] = function($element, $code) {
$code = new RegExp("^" + $code, "i");
while ($element && !$element.getAttribute("lang")) $element = $element.parentNode;
return $element && $code.test($element.getAttribute("lang"));
};
// -----------------------------------------------------------------------
// attribute selectors
// -----------------------------------------------------------------------
// constants
AttributeSelector.NS_IE = /\\:/g;
AttributeSelector.PREFIX = "@";
// properties
AttributeSelector.tests = {};
// methods
AttributeSelector.replace = function($match, $attribute, $namespace, $compare, $value) {
var $key = this.PREFIX + $match;
if (!attributeSelectors[$key]) {
$attribute = this.create($attribute, $compare || "", $value || "");
// store the selector
attributeSelectors[$key] = $attribute;
attributeSelectors.push($attribute);
}
return attributeSelectors[$key].id;
};
AttributeSelector.parse = function($selector) {
$selector = $selector.replace(this.NS_IE, "|");
var $match;
while ($match = $selector.match(this.match)) {
var $replace = this.replace($match[0], $match[1], $match[2], $match[3], $match[4]);
$selector = $selector.replace(this.match, $replace);
}
return $selector;
};
AttributeSelector.create = function($propertyName, $test, $value) {
var $attributeSelector = {};
$attributeSelector.id = this.PREFIX + attributeSelectors.length;
$attributeSelector.name = $propertyName;
$test = this.tests[$test];
$test = $test ? $test(this.getAttribute($propertyName), getText($value)) : false;
$attributeSelector.test = new Function("e", "return " + $test);
return $attributeSelector;
};
AttributeSelector.getAttribute = function($name) {
switch ($name.toLowerCase()) {
case "id":
return "e.id";
case "class":
return "e.className";
case "for":
return "e.htmlFor";
case "href":
if (isMSIE) {
// IE always returns the full path not the fragment in the href attribute
// so we RegExp it out of outerHTML. Opera does the same thing but there
// is no way to get the original attribute.
return "String((e.outerHTML.match(/href=\\x22?([^\\s\\x22]*)\\x22?/)||[])[1]||'')";
}
}
return "e.getAttribute('" + $name.replace($NAMESPACE, ":") + "')";
};
// -----------------------------------------------------------------------
// attribute selector tests
// -----------------------------------------------------------------------
AttributeSelector.tests[""] = function($attribute) {
return $attribute;
};
AttributeSelector.tests["="] = function($attribute, $value) {
return $attribute + "==" + Quote.add($value);
};
AttributeSelector.tests["~="] = function($attribute, $value) {
return "/(^| )" + regEscape($value) + "( |$)/.test(" + $attribute + ")";
};
AttributeSelector.tests["|="] = function($attribute, $value) {
return "/^" + regEscape($value) + "(-|$)/.test(" + $attribute + ")";
};
// -----------------------------------------------------------------------
// parsing
// -----------------------------------------------------------------------
// override parseSelector to parse out attribute selectors
var _parseSelector = parseSelector;
parseSelector = function($selector) {
return _parseSelector(AttributeSelector.parse($selector));
};
}); // addModule
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