/testing/selenium-core/scripts/find_matching_child.js

 1/*
 2 * Copyright 2004 ThoughtWorks, Inc
 3 *
 4 *  Licensed under the Apache License, Version 2.0 (the "License");
 5 *  you may not use this file except in compliance with the License.
 6 *  You may obtain a copy of the License at
 7 *
 8 *      http://www.apache.org/licenses/LICENSE-2.0
 9 *
10 *  Unless required by applicable law or agreed to in writing, software
11 *  distributed under the License is distributed on an "AS IS" BASIS,
12 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 *  See the License for the specific language governing permissions and
14 *  limitations under the License.
15 *
16 */
17
18elementFindMatchingChildren = function(element, selector) {
19  var matches = [];
20
21  var childCount = element.childNodes.length;
22  for (var i=0; i<childCount; i++) {
23    var child = element.childNodes[i];
24    if (selector(child)) {
25      matches.push(child);
26    } else {
27      childMatches = elementFindMatchingChildren(child, selector);
28      matches.push(childMatches);
29    }
30  }
31
32  return matches.flatten();
33}
34
35ELEMENT_NODE_TYPE = 1;
36
37elementFindFirstMatchingChild = function(element, selector) {
38
39  var childCount = element.childNodes.length;
40  for (var i=0; i<childCount; i++) {
41    var child = element.childNodes[i];
42    if (child.nodeType == ELEMENT_NODE_TYPE) {
43      if (selector(child)) {
44        return child;
45      }
46      result = elementFindFirstMatchingChild(child, selector);
47      if (result) {
48        return result;
49      }
50    }
51  }
52  return null;
53}
54
55elementFindFirstMatchingParent = function(element, selector) {
56  var current = element.parentNode;
57  while (current != null) {
58    if (selector(current)) {
59      break;
60    }
61    current = current.parentNode;
62  }
63  return current;
64}
65
66elementFindMatchingChildById = function(element, id) {
67  return elementFindFirstMatchingChild(element, function(element){return element.id==id} );
68}
69