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package org.netbeans.modules.ruby.debugger;
import java.awt.EventQueue;
import java.io.File;
import java.lang.reflect.InvocationTargetException;
import java.util.logging.Level;
import javax.swing.JEditorPane;
import javax.swing.SwingUtilities;
import javax.swing.text.Caret;
import javax.swing.text.StyledDocument;
import org.openide.cookies.EditorCookie;
import org.openide.cookies.LineCookie;
import org.openide.filesystems.FileObject;
import org.openide.filesystems.FileUtil;
import org.openide.loaders.DataObject;
import org.openide.loaders.DataObjectNotFoundException;
import org.openide.nodes.Node;
import org.openide.text.Line;
import org.openide.text.NbDocument;
import org.openide.windows.TopComponent;
public final class EditorUtil {
private EditorUtil() {}
private static DebuggerAnnotation currentLineDA;
// public static boolean contains(final Object currentLine, final Line line) {
// if (currentLine == null) return false;
// final Annotatable[] annotables = (Annotatable[]) currentLine;
// for (Annotatable ann : annotables) {
// if (ann.equals(line)) {
// return true;
// }
// if (ann instanceof Line.Part && ((Line.Part) ann).getLine().equals(line)) {
// return true;
// }
// }
// return false;
// }
/**
* Make line in the editor current - shows the line and colorizes it
* appropriately (green-striped by default). Note that editor counts lines
* from zero.
*
* @see unmarkCurrent()
*/
static void markCurrent(final String filePath, final int lineNumber) {
markCurrent(getLineAnnotable(filePath, lineNumber));
}
private static void markCurrent(final Line line) {
unmarkCurrent();
if (line == null) {
return;
}
currentLineDA = new DebuggerAnnotation(DebuggerAnnotation.CURRENT_LINE_ANNOTATION_TYPE, line);
showLine(line, true);
}
/**
* Cancel effect of {@link #markCurrent(String, int)} method. I.e. removes
* annotation, usually the green stripe.
*/
static void unmarkCurrent() {
if (currentLineDA != null) {
currentLineDA.detach();
currentLineDA = null;
}
}
public static Line getLineAnnotable(final String filePath, final int lineNumber) {
return getLine(filePath, lineNumber);
}
public static Line getLine(final String filePath, final int lineNumber) {
if (filePath == null || lineNumber < 0) {
return null;
}
File file = new File(filePath);
FileObject fileObject = FileUtil.toFileObject(FileUtil.normalizeFile(file));
if (fileObject == null) {
Util.info("Cannot resolve \"" + filePath + '"');
return null;
}
LineCookie lineCookie = getLineCookie(fileObject);
assert lineCookie != null;
return lineCookie.getLineSet().getCurrent(lineNumber);
}
public static LineCookie getLineCookie(final FileObject fo) {
LineCookie result = null;
try {
DataObject dataObject = DataObject.find(fo);
if (dataObject != null) {
result = dataObject.getCookie(LineCookie.class);
}
} catch (DataObjectNotFoundException e) {
Util.LOGGER.log(Level.FINE, "Cannot find DataObject for: " + fo, e.getMessage());
}
return result;
}
public static void showLine(final Line lineToShow, final boolean toFront) {
if (lineToShow == null) {
return;
}
EventQueue.invokeLater(new Runnable() {
public void run() {
lineToShow.show(toFront ? Line.SHOW_TOFRONT : Line.SHOW_GOTO);
}
});
}
public static void showLine(final Line line) {
showLine(line, false);
}
// <editor-fold defaultstate="collapsed" desc=" Editor boilerplate ">
/**
* Returns current editor line (the line where the carret currently is).
* Might be <code>null</code>. Works only for {@link Util#isRubySource
* supported mime-types}. For unsupported ones returns <code>null</code>.
*/
public static Line getCurrentLine() {
Node[] nodes = TopComponent.getRegistry().getCurrentNodes();
if (nodes == null) return null;
if (nodes.length != 1) return null;
Node n = nodes [0];
FileObject fo = n.getLookup().lookup(FileObject.class);
if (fo == null) {
DataObject dobj = n.getLookup().lookup(DataObject.class);
if (dobj != null) {
fo = dobj.getPrimaryFile();
}
}
if (fo == null) { return null; }
if (!Util.isRubySource(fo)) {
return null;
}
LineCookie lineCookie = n.getCookie(LineCookie.class);
if (lineCookie == null) return null;
EditorCookie editorCookie = n.getCookie(EditorCookie.class);
if (editorCookie == null) return null;
JEditorPane jEditorPane = getEditorPane(editorCookie);
if (jEditorPane == null) return null;
StyledDocument document = editorCookie.getDocument();
if (document == null) return null;
Caret caret = jEditorPane.getCaret();
if (caret == null) return null;
int lineNumber = NbDocument.findLineNumber(document, caret.getDot());
try {
Line.Set lineSet = lineCookie.getLineSet();
assert lineSet != null : lineCookie;
return lineSet.getCurrent(lineNumber);
} catch (IndexOutOfBoundsException ex) {
return null;
}
}
private static JEditorPane getEditorPane_(EditorCookie editorCookie) {
JEditorPane[] op = editorCookie.getOpenedPanes();
if ((op == null) || (op.length < 1)) return null;
return op [0];
}
private static JEditorPane getEditorPane(final EditorCookie editorCookie) {
if (SwingUtilities.isEventDispatchThread()) {
return getEditorPane_(editorCookie);
} else {
final JEditorPane[] ce = new JEditorPane[1];
try {
EventQueue.invokeAndWait(new Runnable() {
public void run() {
ce[0] = getEditorPane_(editorCookie);
}
});
} catch (InvocationTargetException ex) {
Util.severe(ex);
} catch (InterruptedException ex) {
Util.severe(ex);
Thread.currentThread().interrupt();
}
return ce[0];
}
}
// </editor-fold>
}
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