--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cm/media/js/lib/yui/yui3.0.0/build/dom/selector-native-debug.js Mon Nov 23 15:14:29 2009 +0100
@@ -0,0 +1,232 @@
+/*
+Copyright (c) 2009, Yahoo! Inc. All rights reserved.
+Code licensed under the BSD License:
+http://developer.yahoo.net/yui/license.txt
+version: 3.0.0
+build: 1549
+*/
+YUI.add('selector-native', function(Y) {
+
+(function(Y) {
+/**
+ * The selector-native module provides support for native querySelector
+ * @module dom
+ * @submodule selector-native
+ * @for Selector
+ */
+
+/**
+ * Provides support for using CSS selectors to query the DOM
+ * @class Selector
+ * @static
+ * @for Selector
+ */
+
+Y.namespace('Selector'); // allow native module to standalone
+
+var COMPARE_DOCUMENT_POSITION = 'compareDocumentPosition',
+ OWNER_DOCUMENT = 'ownerDocument',
+ TMP_PREFIX = 'yui-tmp-',
+ g_counter = 0;
+
+var Selector = {
+ _foundCache: [],
+
+ useNative: true,
+
+ _compare: ('sourceIndex' in document.documentElement) ?
+ function(nodeA, nodeB) {
+ var a = nodeA.sourceIndex,
+ b = nodeB.sourceIndex;
+
+ if (a === b) {
+ return 0;
+ } else if (a > b) {
+ return 1;
+ }
+
+ return -1;
+
+ } : (document.documentElement[COMPARE_DOCUMENT_POSITION] ?
+ function(nodeA, nodeB) {
+ if (nodeA[COMPARE_DOCUMENT_POSITION](nodeB) & 4) {
+ return -1;
+ } else {
+ return 1;
+ }
+ } :
+ function(nodeA, nodeB) {
+ var rangeA, rangeB, compare;
+ if (nodeA && nodeB) {
+ rangeA = nodeA[OWNER_DOCUMENT].createRange();
+ rangeA.setStart(nodeA, 0);
+ rangeB = nodeB[OWNER_DOCUMENT].createRange();
+ rangeB.setStart(nodeB, 0);
+ compare = rangeA.compareBoundaryPoints(1, rangeB); // 1 === Range.START_TO_END
+ }
+
+ return compare;
+
+ }),
+
+ _sort: function(nodes) {
+ if (nodes) {
+ nodes = Y.Array(nodes, 0, true);
+ if (nodes.sort) {
+ nodes.sort(Selector._compare);
+ }
+ }
+
+ return nodes;
+ },
+
+ _deDupe: function(nodes) {
+ var ret = [],
+ i, node;
+
+ for (i = 0; (node = nodes[i++]);) {
+ if (!node._found) {
+ ret[ret.length] = node;
+ node._found = true;
+ }
+ }
+
+ for (i = 0; (node = ret[i++]);) {
+ node._found = null;
+ node.removeAttribute('_found');
+ }
+
+ return ret;
+ },
+
+ /**
+ * Retrieves a set of nodes based on a given CSS selector.
+ * @method query
+ *
+ * @param {string} selector The CSS Selector to test the node against.
+ * @param {HTMLElement} root optional An HTMLElement to start the query from. Defaults to Y.config.doc
+ * @param {Boolean} firstOnly optional Whether or not to return only the first match.
+ * @return {Array} An array of nodes that match the given selector.
+ * @static
+ */
+ query: function(selector, root, firstOnly, skipNative) {
+ root = root || Y.config.doc;
+ var ret = [],
+ useNative = (Y.Selector.useNative && document.querySelector && !skipNative),
+ queries = [[selector, root]],
+ query,
+ result,
+ i,
+ fn = (useNative) ? Y.Selector._nativeQuery : Y.Selector._bruteQuery;
+
+ if (selector && fn) {
+ // split group into seperate queries
+ if (!skipNative && // already done if skipping
+ (!useNative || root.tagName)) { // split native when element scoping is needed
+ queries = Selector._splitQueries(selector, root);
+ }
+
+ for (i = 0; (query = queries[i++]);) {
+ result = fn(query[0], query[1], firstOnly);
+ if (!firstOnly) { // coerce DOM Collection to Array
+ result = Y.Array(result, 0, true);
+ }
+ if (result) {
+ ret = ret.concat(result);
+ }
+ }
+
+ if (queries.length > 1) { // remove dupes and sort by doc order
+ ret = Selector._sort(Selector._deDupe(ret));
+ }
+ }
+
+ Y.log('query: ' + selector + ' returning: ' + ret.length, 'info', 'Selector');
+ return (firstOnly) ? (ret[0] || null) : ret;
+
+ },
+
+ // allows element scoped queries to begin with combinator
+ // e.g. query('> p', document.body) === query('body > p')
+ _splitQueries: function(selector, node) {
+ var groups = selector.split(','),
+ queries = [],
+ prefix = '',
+ i, len;
+
+ if (node) {
+ // enforce for element scoping
+ if (node.tagName) {
+ node.id = node.id || Y.guid();
+ prefix = '#' + node.id + ' ';
+ }
+
+ for (i = 0, len = groups.length; i < len; ++i) {
+ selector = prefix + groups[i];
+ queries.push([selector, node]);
+ }
+ }
+
+ return queries;
+ },
+
+ _nativeQuery: function(selector, root, one) {
+ try {
+ //Y.log('trying native query with: ' + selector, 'info', 'selector-native');
+ return root['querySelector' + (one ? '' : 'All')](selector);
+ } catch(e) { // fallback to brute if available
+ //Y.log('native query error; reverting to brute query with: ' + selector, 'info', 'selector-native');
+ return Y.Selector.query(selector, root, one, true); // redo with skipNative true
+ }
+ },
+
+ filter: function(nodes, selector) {
+ var ret = [],
+ i, node;
+
+ if (nodes && selector) {
+ for (i = 0; (node = nodes[i++]);) {
+ if (Y.Selector.test(node, selector)) {
+ ret[ret.length] = node;
+ }
+ }
+ } else {
+ Y.log('invalid filter input (nodes: ' + nodes +
+ ', selector: ' + selector + ')', 'warn', 'Selector');
+ }
+
+ return ret;
+ },
+
+ test: function(node, selector, root) {
+ var ret = false,
+ groups = selector.split(','),
+ item,
+ i, group;
+
+ if (node && node.tagName) { // only test HTMLElements
+ root = root || node.ownerDocument;
+
+ if (!node.id) {
+ node.id = TMP_PREFIX + g_counter++;
+ }
+ for (i = 0; (group = groups[i++]);) { // TODO: off-dom test
+ group += '#' + node.id; // add ID for uniqueness
+ item = Y.Selector.query(group, root, true);
+ ret = (item === node);
+ if (ret) {
+ break;
+ }
+ }
+ }
+
+ return ret;
+ }
+};
+
+Y.mix(Y.Selector, Selector, true);
+
+})(Y);
+
+
+}, '3.0.0' ,{requires:['dom-base']});