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1 package com.genimen.djeneric.web.renderers.tree;
2
3 import javax.xml.parsers.DocumentBuilder  ;
4 import javax.xml.parsers.DocumentBuilderFactory ;
5 import javax.xml.parsers.FactoryConfigurationError ;
6 import javax.xml.parsers.ParserConfigurationException ;
7
8 import org.w3c.dom.DOMException ;
9 import org.w3c.dom.Document ;
10 import org.w3c.dom.Element ;
11
12 import com.genimen.djeneric.repository.DjSession;
13 import com.genimen.djeneric.repository.exceptions.DjenericException;
14 import com.genimen.djeneric.structure.ExtentUsage;
15
16 public class WebTree
17 {
18 WebNode _root;
19 String _selectionPath = null;
20
21 public WebTree(DjSession session, ExtentUsage[] usages)
22 {
23 _root = new WebNode(session);
24 for (int i = 0; i < usages.length; i++)
25 {
26 WebFolder folder = new WebFolder(session);
27 folder.setExtentUsage(usages[i]);
28 _root.insertAsChild(folder);
29 }
30 }
31
32 public Document asXml(String path) throws ParserConfigurationException , DOMException , DjenericException
33 {
34 Document doc = createDocument();
35 Element tree = createTree(doc);
36 doc.appendChild(tree);
37
38 AbstractWebNode node = _root.getNode(path);
39 if (node != null) tree.appendChild(node.asXml(doc));
40 return doc;
41 }
42
43 public Element asXml(Document doc) throws ParserConfigurationException , DOMException , DjenericException
44 {
45 Element tree = createTree(doc);
46
47 for (int i = 0; i < _root.getChildCount(); i++)
48 {
49 tree.appendChild(_root.getChildAt(i).asXml(doc));
50 }
51 return tree;
52 }
53
54 private Element createTree(Document doc)
55 {
56 Element tree = doc.createElement("tree");
57
58 boolean isSelected = false;
59 if (_selectionPath != null)
60 {
61 AbstractWebNode node = _root.getNode(_selectionPath);
62 if (node != null)
63 {
64 tree.setAttribute("selectednode", node.getPath());
65 isSelected = true;
66 }
67 }
68 if (!isSelected && _root.getChildCount() > 0)
69 {
70 tree.setAttribute("selectednode", _root.getChildAt(0).getPath());
71 }
72 return tree;
73 }
74
75 private Document createDocument() throws FactoryConfigurationError , ParserConfigurationException
76 {
77 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
78 DocumentBuilder builder = factory.newDocumentBuilder();
79 Document doc = builder.newDocument();
80 return doc;
81 }
82
83 public AbstractWebNode getNode(String path)
84 {
85 return _root.getNode(path);
86 }
87
88 public void toggleExpanded(String path) throws DjenericException
89 {
90 AbstractWebNode node = _root.getNode(path);
91 if (node != null)
92 {
93 node.setExpanded(!node.isExpanded());
94 }
95 }
96
97 public void expandAll() throws DjenericException
98 {
99 _root.expandAll();
100 }
101
102 public void collapseAll() throws DjenericException
103 {
104 _root.collapseAll();
105 }
106
107 public void expandAll(String path) throws DjenericException
108 {
109 AbstractWebNode node = _root.getNode(path);
110 if (node != null)
111 {
112 node.expandAll();
113 }
114 }
115
116 public void collapseAll(String path) throws DjenericException
117 {
118 AbstractWebNode node = _root.getNode(path);
119 if (node != null)
120 {
121 node.collapseAll();
122 }
123 }
124
125 public void setSelectedNode(String path)
126 {
127 AbstractWebNode node = _root.getNode(path);
128 if (node != null)
129 {
130 _selectionPath = node.getPath();
131 }
132 }
133 }
134 |
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