8d1240fc6300f6769711557511f6882f0a3d3139Matt Sweeney * The selector css3 module provides support for css3 selectors.
4f15171c562757e8d3e2b8882e04d6b5a2291732Matt Sweeney * @module dom
4f15171c562757e8d3e2b8882e04d6b5a2291732Matt Sweeney * @submodule selector-css3
4f15171c562757e8d3e2b8882e04d6b5a2291732Matt Sweeney * @for Selector
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney an+b = get every _a_th node starting at the _b_th
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney 0n+b = no repeat ("0" and "n" may both be omitted (together) , e.g. "0n+1" or "1", not "0+1"), return only the _b_th element
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney 1n+b = get every element starting from b ("1" may may be omitted, e.g. "1n+0" or "n+0" or "n")
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney an+0 = get every _a_th element, "0" may be omitted
6244b09179e0efbecc704ba75b5323ee0f5b38d3Matt SweeneyY.Selector._reNth = /^(?:([\-]?\d*)(n){1}|(odd|even)$)*([\-+]?\d*)$/;
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt SweeneyY.Selector._getNth = function(node, expr, tag, reverse) {
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney var a = parseInt(RegExp.$1, 10), // include every _a_ elements (zero means no repeat, just first _a_)
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney b = parseInt(RegExp.$4, 10) || 0, // start scan from element _b_
8023f8dbcd1b40edf283b984c103ea7651e2549bMatt Sweeney siblings = Y.DOM._children(node.parentNode, tag),
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney } else if ( isNaN(a) ) {
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney a = (n) ? 1 : 0; // start from the first or no repeat
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney return true;
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney return false;
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney } else if (a < 0) {
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney a = Math.abs(a);
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney for (var i = b - 1, len = siblings.length; i < len; i += a) {
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney return true;
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney for (var i = siblings.length - b, len = siblings.length; i >= 0; i -= a) {
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney return true;
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney return false;
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney return node === node.ownerDocument.documentElement;
d59c625bc91380e7d3458db5e7e9a581d670684aMatt Sweeney return Y.Selector._getNth(node, expr, null, true);
d59c625bc91380e7d3458db5e7e9a581d670684aMatt Sweeney return Y.Selector._getNth(node, expr, node.tagName);
d59c625bc91380e7d3458db5e7e9a581d670684aMatt Sweeney return Y.Selector._getNth(node, expr, node.tagName, true);
8023f8dbcd1b40edf283b984c103ea7651e2549bMatt Sweeney var children = Y.DOM._children(node.parentNode);
8023f8dbcd1b40edf283b984c103ea7651e2549bMatt Sweeney return Y.DOM._children(node.parentNode, node.tagName)[0] === node;
8023f8dbcd1b40edf283b984c103ea7651e2549bMatt Sweeney var children = Y.DOM._children(node.parentNode, node.tagName);
8023f8dbcd1b40edf283b984c103ea7651e2549bMatt Sweeney var children = Y.DOM._children(node.parentNode);
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney return children.length === 1 && children[0] === node;
8023f8dbcd1b40edf283b984c103ea7651e2549bMatt Sweeney var children = Y.DOM._children(node.parentNode, node.tagName);
0fa21f434cf7d4ed63d790f8fb2a9c68e656d00eMatt Sweeney return children.length === 1 && children[0] === node;
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney var text = node.innerText || node.textContent || '';
891267ad40d74f1e123d09a6278fdba826002779Matt Sweeney return (node.checked === true || node.selected === true);
8906dd44d6aa2a5092388e0c2e80d8dc9aae397cMatt Sweeney return (node.disabled !== undefined && !node.disabled);
1e4299e83b45ff5cf2fc6b545f0186ecf831ec87Matt Sweeney '*=': '{val}' // Match contains value as substring