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package org.netbeans.modules.ruby.debugger.breakpoints;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.IOException;
import org.netbeans.modules.ruby.debugger.ContextProviderWrapper;
import org.openide.cookies.LineCookie;
import org.openide.loaders.DataObject;
import org.openide.text.Line;
import org.openide.util.Exceptions;
/** Simplified, heavily based on Java Debugger code. */
final class BreakpointLineUpdater implements PropertyChangeListener {
private RubyBreakpoint breakpoint;
private DataObject dataObject;
private LineCookie lc;
private Line line;
public BreakpointLineUpdater(RubyBreakpoint breakpoint) {
this.breakpoint = breakpoint;
try {
this.dataObject = DataObject.find(breakpoint.getFileObject());
} catch (IOException ex) {
Exceptions.printStackTrace(ex);
}
}
public synchronized void attach() throws IOException {
this.lc = dataObject.getCookie(LineCookie.class);
breakpoint.addPropertyChangeListener(this);
try {
this.line = lc.getLineSet().getCurrent(breakpoint.getLineNumber() - 1);
line.addPropertyChangeListener(this);
} catch (IndexOutOfBoundsException ioobex) {
// ignore document changes for BP with bad line number
}
}
public synchronized void detach() {
breakpoint.removePropertyChangeListener(this);
if (line != null) {
line.removePropertyChangeListener(this);
}
}
public synchronized void propertyChange(PropertyChangeEvent evt) {
if (Line.PROP_LINE_NUMBER.equals(evt.getPropertyName()) && line == evt.getSource()) {
breakpoint.notifyUpdated();
return;
}
}
}
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