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1
19
20 package org.netbeans.modules.ant.debugger.breakpoints;
21
22 import java.beans.PropertyChangeEvent  ;
23 import java.beans.PropertyChangeListener ;
24 import java.lang.reflect.InvocationTargetException ;
25 import java.util.Collections ;
26 import java.util.Set ;
27 import javax.swing.JEditorPane ;
28 import javax.swing.SwingUtilities ;
29 import javax.swing.text.Caret ;
30 import javax.swing.text.StyledDocument ;
31 import org.netbeans.api.debugger.ActionsManager;
32 import org.netbeans.api.debugger.Breakpoint;
33 import org.netbeans.api.debugger.DebuggerManager;
34 import org.netbeans.spi.debugger.ActionsProviderSupport;
35 import org.openide.ErrorManager;
36 import org.openide.cookies.EditorCookie;
37 import org.openide.cookies.LineCookie;
38 import org.openide.filesystems.FileObject;
39 import org.openide.loaders.DataObject;
40 import org.openide.nodes.Node;
41 import org.openide.text.Line;
42 import org.openide.text.NbDocument;
43 import org.openide.util.WeakListeners;
44 import org.openide.windows.TopComponent;
45
46
50 public class AntBreakpointActionProvider extends ActionsProviderSupport
51 implements PropertyChangeListener {
52
53 private static final Set actions = Collections.singleton (
54 ActionsManager.ACTION_TOGGLE_BREAKPOINT
55 );
56
57
58 public AntBreakpointActionProvider () {
59 setEnabled (ActionsManager.ACTION_TOGGLE_BREAKPOINT, true);
60 TopComponent.getRegistry().addPropertyChangeListener(
61 WeakListeners.propertyChange(this, TopComponent.getRegistry()));
62 }
63
64
69 public void doAction (Object action) {
70 Line line = getCurrentLine ();
71 if (line == null) return ;
72 Breakpoint[] breakpoints = DebuggerManager.getDebuggerManager ().
73 getBreakpoints ();
74 int i, k = breakpoints.length;
75 for (i = 0; i < k; i++)
76 if ( breakpoints [i] instanceof AntBreakpoint &&
77 ((AntBreakpoint) breakpoints [i]).getLine ().equals (line)
78 ) {
79 DebuggerManager.getDebuggerManager ().removeBreakpoint
80 (breakpoints [i]);
81 break;
82 }
83 if (i == k)
84 DebuggerManager.getDebuggerManager ().addBreakpoint (
85 new AntBreakpoint (line)
86 );
87 }
89
90
95 public Set getActions () {
96 return actions;
97 }
98
99
100 static Line getCurrentLine () {
101 Node[] nodes = TopComponent.getRegistry ().getCurrentNodes ();
102 if (nodes == null) return null;
103 if (nodes.length != 1) return null;
104 Node n = nodes [0];
105 FileObject fo = (FileObject) n.getLookup ().lookup(FileObject.class);
107 if (fo == null) {
108 DataObject dobj = (DataObject) n.getLookup().lookup(DataObject.class);
109 if (dobj != null) {
110 fo = dobj.getPrimaryFile();
111 }
112 }
113 if (!isAntFile(fo)) {
115 return null;
116 }
117 LineCookie lineCookie = (LineCookie) n.getCookie (LineCookie.class);
118 if (lineCookie == null) return null;
120 EditorCookie editorCookie = (EditorCookie) n.getCookie (EditorCookie.class);
121 if (editorCookie == null) return null;
122 JEditorPane jEditorPane = getEditorPane(editorCookie);
123 if (jEditorPane == null) return null;
124 StyledDocument document = editorCookie.getDocument ();
125 if (document == null) return null;
126 Caret caret = jEditorPane.getCaret ();
127 if (caret == null) return null;
128 int lineNumber = NbDocument.findLineNumber (
129 document,
130 caret.getDot ()
131 );
132 try {
133 Line.Set lineSet = lineCookie.getLineSet();
134 assert lineSet != null : lineCookie;
135 return lineSet.getCurrent(lineNumber);
136 } catch (IndexOutOfBoundsException ex) {
137 return null;
138 }
139 }
140
141 private static JEditorPane getEditorPane_(EditorCookie editorCookie) {
142 JEditorPane [] op = editorCookie.getOpenedPanes ();
143 if ((op == null) || (op.length < 1)) return null;
144 return op [0];
145 }
146
147 private static JEditorPane getEditorPane(final EditorCookie editorCookie) {
148 if (SwingUtilities.isEventDispatchThread()) {
149 return getEditorPane_(editorCookie);
150 } else {
151 final JEditorPane [] ce = new JEditorPane [1];
152 try {
153 SwingUtilities.invokeAndWait(new Runnable () {
154 public void run() {
155 ce[0] = getEditorPane_(editorCookie);
156 }
157 });
158 } catch (InvocationTargetException ex) {
159 ErrorManager.getDefault().notify(ex.getTargetException());
160 } catch (InterruptedException ex) {
161 ErrorManager.getDefault().notify(ex);
162 }
163 return ce[0];
164 }
165 }
166
167
168
169 private static boolean isAntFile(FileObject fo) {
170 if (fo == null) {
171 return false;
172 } else {
173 return fo.getMIMEType().equals("text/x-ant+xml");
174 }
175 }
176
177 public void propertyChange(PropertyChangeEvent evt) {
178 boolean enabled = getCurrentLine() != null;
180 setEnabled (ActionsManager.ACTION_TOGGLE_BREAKPOINT, enabled);
181 }
182
183 }
184 |
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