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1
21
24 package org.lobobrowser.html.domimpl;
25
26 import org.lobobrowser.js.*;
27 import org.w3c.dom.Node  ;
28 import org.w3c.dom.NodeList ;
29 import java.util.*;
30
31 class FilteredNodeListImpl extends AbstractScriptableDelegate implements NodeList {
32 private final Collection sourceNodeList;
33 private final NodeFilter filter;
34 private final Object lock;
35
36
40 public FilteredNodeListImpl(NodeFilter filter, Collection list, Object lock) {
41 super();
42 this.filter = filter;
43 sourceNodeList = list;
44 this.lock = lock;
45 }
46
47 public Node item(int index) {
48 synchronized(this.lock) {
49 int count = 0;
50 Iterator i = this.sourceNodeList.iterator();
51 while(i.hasNext()) {
52 Node node = (Node ) i.next();
53 if(this.filter.accept(node)) {
54 if(count == index) {
55 return node;
56 }
57 count++;
58 }
59 }
60 return null;
61 }
62 }
63
64 public int getLength() {
65 synchronized(this.lock) {
66 int count = 0;
67 Iterator i = this.sourceNodeList.iterator();
68 while(i.hasNext()) {
69 Node node = (Node ) i.next();
70 if(this.filter.accept(node)) {
71 count++;
72 }
73 }
74 return count;
75 }
76 }
77 }
78 |
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