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/*******************************************************************************
* Copyright (c) 2007, 2008 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.internal.debug.ui.actions;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.debug.ui.DebugUITools;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.debug.core.IJavaStackFrame;
import org.eclipse.jdt.internal.debug.ui.EvaluationContextManager;
import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin;
import org.eclipse.jdt.internal.debug.ui.JavaWordFinder;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.TextSelection;
import org.eclipse.jface.text.hyperlink.AbstractHyperlinkDetector;
import org.eclipse.jface.text.hyperlink.IHyperlink;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.texteditor.ITextEditor;
/**
* This is a specialization of a hyperlink detector for the step into selection command
*
* @since 3.3
*/
public class StepIntoSelectionHyperlinkDetector extends AbstractHyperlinkDetector {
/**
* Specific implementation of a hyperlink for step into command
*/
class StepIntoSelectionHyperlink implements IHyperlink {
private IRegion fRegion = null;
/**
* Constructor
* @param region
*/
public StepIntoSelectionHyperlink(IRegion region) {
fRegion = region;
}
/**
* @see org.eclipse.jface.text.hyperlink.IHyperlink#getHyperlinkRegion()
*/
public IRegion getHyperlinkRegion() {
return fRegion;
}
/**
* @see org.eclipse.jface.text.hyperlink.IHyperlink#getHyperlinkText()
*/
public String getHyperlinkText() {
return ActionMessages.StepIntoSelectionHyperlinkDetector_0;
}
/**
* @see org.eclipse.jface.text.hyperlink.IHyperlink#getTypeLabel()
*/
public String getTypeLabel() {
return null;
}
/**
* @see org.eclipse.jface.text.hyperlink.IHyperlink#open()
*/
public void open() {
StepIntoSelectionActionDelegate delegate = new StepIntoSelectionActionDelegate(fRegion);
delegate.init(JDIDebugUIPlugin.getActiveWorkbenchWindow());
delegate.run(null);
}
}
/**
* @see org.eclipse.jface.text.hyperlink.IHyperlinkDetector#detectHyperlinks(org.eclipse.jface.text.ITextViewer, org.eclipse.jface.text.IRegion, boolean)
*/
public IHyperlink[] detectHyperlinks(ITextViewer textViewer, IRegion region, boolean canShowMultipleHyperlinks) {
ITextEditor editor = (ITextEditor) getAdapter(ITextEditor.class);
if(editor != null && EvaluationContextManager.getEvaluationContext(JDIDebugUIPlugin.getActiveWorkbenchWindow()) != null) {
// should only enable step into selection when the current debug context
// is an instance of IJavaStackFrame
IAdaptable debugContext = DebugUITools.getDebugContext();
if (!(debugContext instanceof IJavaStackFrame)) {
return null;
}
IEditorInput input = editor.getEditorInput();
IJavaElement element = StepIntoSelectionUtils.getJavaElement(input);
int offset = region.getOffset();
if(element != null) {
try {
IDocument document = editor.getDocumentProvider().getDocument(editor.getEditorInput());
if(document != null) {
IRegion wregion = JavaWordFinder.findWord(document, offset);
if(wregion != null) {
IMethod method = StepIntoSelectionUtils.getMethod(new TextSelection(document, wregion.getOffset(), wregion.getLength()), element);
if (method != null) {
return new IHyperlink[] {new StepIntoSelectionHyperlink(wregion)};
}
}
}
}
catch(JavaModelException jme) {JDIDebugUIPlugin.log(jme);}
}
}
return null;
}
}
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