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1 package freemarker.eclipse.editors;
2
3 import java.io.Reader  ;
4 import java.io.StringReader ;
5 import java.util.Enumeration ;
6 import java.util.Vector ;
7
8 import org.eclipse.core.resources.IFile;
9 import org.eclipse.core.resources.IMarker;
10 import org.eclipse.core.resources.IResource;
11 import org.eclipse.jface.text.IDocument;
12 import org.eclipse.jface.text.IRegion;
13 import org.eclipse.jface.text.reconciler.DirtyRegion;
14 import org.eclipse.jface.text.reconciler.IReconcilingStrategy;
15 import org.eclipse.swt.widgets.Display;
16 import org.eclipse.ui.IFileEditorInput;
17
18 import freemarker.core.ParseException;
19 import freemarker.core.TemplateElement;
20 import freemarker.template.Configuration;
21 import freemarker.template.Template;
22
23
24
28 public class ReconcilingStrategy implements IReconcilingStrategy {
29 private FreemarkerEditor fEditor;
30 private Template fTemplate;
31 private Template fLastTemplate;
32 private String fError;
33
34 public ReconcilingStrategy(FreemarkerEditor anEditor) {
35 fEditor = anEditor;
36 }
37
38 public void setDocument(IDocument aDocument) {
39 parse();
40 }
41
42 public void reconcile(DirtyRegion aDirtyRegion, IRegion aRegion) {
43 parse();
44 }
45
46 public void reconcile(IRegion aPartition) {
47 parse();
48 }
49
50 private void parse() {
51 IFile file = ((IFileEditorInput)fEditor.getEditorInput()).getFile();
52 String name = file.getName();
53 Template template = null;
54 int fErrorLine = 0;
55 String fErrorExpected = "";
56 try {
57 file.deleteMarkers(IMarker.PROBLEM, true, IResource.DEPTH_INFINITE);
58 Reader reader = new StringReader (fEditor.getDocument().get());
59 Configuration cfg = new Configuration();
60 template = new Template(file.getName(), reader, cfg);
61 reader.close();
62 fError = "";
63 } catch (ParseException e) {
64 if (e.getMessage() != null) {
65 fError = e.getMessage();
66
67
68
69 try {
70 fErrorLine = e.getLineNumber();
71 } catch (NullPointerException npe) {
72 fErrorLine = 0;
73 }
74
75 } else {
76 fError = "";
77 }
78 } catch (Exception e) {
79
80 }
81 synchronized (this) {
82 if (template != null) {
83 fTemplate = template;
84
85 fLastTemplate = template;
87
88 } else {
89 fTemplate = null;
90 try {
91 fEditor.addProblemMarker(fError,fErrorLine);
92 } catch (Exception e) {
93
94 }
95 }
96 }
97
98 Display.getDefault().syncExec(new Runnable () {
100 public void run(){
101 fEditor.updateOutlinePage();
102 fEditor.displayErrorMessage(fError);
103 }
104 });
105 }
106
107 public Object [] getTemplateRoot() {
108 if(null==fTemplate) {
109 return new Object [0];
110 } else {
111 if("root element".equals(fTemplate.getRootTreeNode().getDescription())) {
112 return enum2array(fTemplate.getRootTreeNode().children());
113 } else {
114 return new Object []{fTemplate.getRootTreeNode()};
115 }
116 }
117 }
118
119 public Template getTemplate() {
120 return fTemplate;
121 }
122
123 private Object [] enum2array(Enumeration e) {
124 Vector temp = new Vector ();
125 TemplateElement t;
126 while(e.hasMoreElements()) {
127 t = (TemplateElement)e.nextElement();
128 temp.add(t);
130 }
132 return temp.toArray();
133 }
134 }
135
136 |
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