/**
* Copyright (c) 2005-2012 by Appcelerator, Inc. All Rights Reserved.
* Licensed under the terms of the Eclipse Public License (EPL).
* Please see the license.txt included with this distribution for details.
* Any modifications to this file must keep this entire header intact.
*/
package org.python.pydev.debug.ui.propertypages;
import java.util.Map;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.debug.core.DebugException;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.DocumentEvent;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IDocumentListener;
import org.eclipse.jface.text.IDocumentPartitioner;
import org.eclipse.jface.text.IUndoManager;
import org.eclipse.jface.text.TextViewerUndoManager;
import org.eclipse.jface.text.source.ISourceViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.commands.AbstractHandler;
import org.eclipse.ui.commands.ExecutionException;
import org.eclipse.ui.commands.HandlerSubmission;
import org.eclipse.ui.commands.IHandler;
import org.eclipse.ui.commands.IWorkbenchCommandSupport;
import org.eclipse.ui.commands.Priority;
import org.eclipse.ui.texteditor.ITextEditorActionDefinitionIds;
import org.python.pydev.core.IPythonPartitions;
import org.python.pydev.core.partition.PyPartitionScanner;
import org.python.pydev.core.partition.PyPartitioner;
import org.python.pydev.debug.core.PydevDebugPlugin;
import org.python.pydev.debug.model.PyBreakpoint;
import org.python.pydev.debug.ui.PythonSourceViewer;
public class BreakpointConditionEditor {
private boolean fIsValid;
private String fOldValue;
private String fErrorMessage;
private HandlerSubmission submission;
private IDocumentListener fDocumentListener;
private PythonBreakpointPage fPage;
private PyBreakpoint fBreakpoint;
private PythonSourceViewer fViewer;
public BreakpointConditionEditor(Composite parent, PythonBreakpointPage page) {
fPage = page;
fBreakpoint = fPage.getBreakpoint();
String condition;
try {
condition = fBreakpoint.getCondition();
} catch (DebugException e) {
PydevDebugPlugin.log(IStatus.ERROR, "Can't read conditions", e);
return;
}
fErrorMessage = "Enter a condition"; //$NON-NLS-1$
fOldValue = ""; //$NON-NLS-1$
// the source viewer
fViewer = new PythonSourceViewer(parent, null, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
fViewer.setInput(parent);
IDocument document = new Document();
IDocumentPartitioner partitioner = new PyPartitioner(new PyPartitionScanner(), IPythonPartitions.types);
document.setDocumentPartitioner(partitioner);
partitioner.connect(document);
/*
fViewer.configure(new DisplayViewerConfiguration() {
public IContentAssistProcessor getContentAssistantProcessor() {
return getCompletionProcessor();
}
});*/
fViewer.setEditable(true);
fViewer.setDocument(document);
final IUndoManager undoManager = new TextViewerUndoManager(100);
fViewer.setUndoManager(undoManager);
undoManager.connect(fViewer);
fViewer.getTextWidget().setFont(JFaceResources.getTextFont());
Control control = fViewer.getControl();
GridData gd = new GridData(GridData.FILL_BOTH);
control.setLayoutData(gd);
// listener for check the value
fDocumentListener = new IDocumentListener() {
@Override
public void documentAboutToBeChanged(DocumentEvent event) {
}
@Override
public void documentChanged(DocumentEvent event) {
valueChanged();
}
};
fViewer.getDocument().addDocumentListener(fDocumentListener);
// we can only do code assist if there is an associated type
/*
try {
//getCompletionProcessor().setType(type);
String source= null;
ICompilationUnit compilationUnit= type.getCompilationUnit();
if (compilationUnit != null) {
source= compilationUnit.getSource();
} else {
IClassFile classFile= type.getClassFile();
if (classFile != null) {
source= classFile.getSource();
}
}
int lineNumber= fBreakpoint.getMarker().getAttribute(IMarker.LINE_NUMBER, -1);
int position= -1;
if (source != null && lineNumber != -1) {
try {
position= new Document(source).getLineOffset(lineNumber - 1);
} catch (BadLocationException e) {
}
}
//getCompletionProcessor().setPosition(position);
} catch (CoreException e) {
}*/
gd = (GridData) fViewer.getControl().getLayoutData();
gd.heightHint = fPage.convertHeightInCharsToPixels(10);
gd.widthHint = fPage.convertWidthInCharsToPixels(40);
document.set(condition);
valueChanged();
IHandler handler = new AbstractHandler() {
@Override
public Object execute(Map parameter) throws ExecutionException {
fViewer.doOperation(ISourceViewer.CONTENTASSIST_PROPOSALS);
return null;
}
};
submission = new HandlerSubmission(null, parent.getShell(), null,
ITextEditorActionDefinitionIds.CONTENT_ASSIST_PROPOSALS, handler, Priority.MEDIUM);
}
/**
* Returns the condition defined in the source viewer.
* @return the contents of this condition editor
*/
public String getCondition() {
return fViewer.getDocument().get();
}
/**
* @see org.eclipse.jface.preference.FieldEditor#refreshValidState()
*/
protected void refreshValidState() {
// the value is valid if the field is not editable, or if the value is not empty
if (!fViewer.isEditable()) {
fPage.removeErrorMessage(fErrorMessage);
fIsValid = true;
} else {
String text = fViewer.getDocument().get();
fIsValid = text != null && text.trim().length() > 0;
if (!fIsValid) {
fPage.addErrorMessage(fErrorMessage);
} else {
fPage.removeErrorMessage(fErrorMessage);
}
}
}
/**
* Return the completion processor associated with this viewer.
* @return BreakPointConditionCompletionProcessor
*/
/*
protected BreakpointConditionCompletionProcessor getCompletionProcessor() {
if (fCompletionProcessor == null) {
fCompletionProcessor= new BreakpointConditionCompletionProcessor(null);
}
return fCompletionProcessor;
}*/
/**
* @see org.eclipse.jface.preference.FieldEditor#setEnabled(boolean, org.eclipse.swt.widgets.Composite)
*/
public void setEnabled(boolean enabled) {
fViewer.setEditable(enabled);
fViewer.getTextWidget().setEnabled(enabled);
if (enabled) {
fViewer.updateViewerColors();
fViewer.getTextWidget().setFocus();
IWorkbench workbench = PlatformUI.getWorkbench();
IWorkbenchCommandSupport commandSupport = workbench.getCommandSupport();
commandSupport.addHandlerSubmission(submission);
} else {
Color color = fViewer.getControl().getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND);
fViewer.getTextWidget().setBackground(color);
IWorkbench workbench = PlatformUI.getWorkbench();
IWorkbenchCommandSupport commandSupport = workbench.getCommandSupport();
commandSupport.removeHandlerSubmission(submission);
}
valueChanged();
}
protected void valueChanged() {
refreshValidState();
String newValue = fViewer.getDocument().get();
if (!newValue.equals(fOldValue)) {
fOldValue = newValue;
}
}
public void dispose() {
if (fViewer.isEditable()) {
IWorkbench workbench = PlatformUI.getWorkbench();
IWorkbenchCommandSupport commandSupport = workbench.getCommandSupport();
commandSupport.removeHandlerSubmission(submission);
}
fViewer.getDocument().removeDocumentListener(fDocumentListener);
fViewer.dispose();
}
}