/*******************************************************************************
* Copyright (c) 2011 Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is 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:
* Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.cdi.ui.marker;
import java.text.MessageFormat;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.jdt.core.Flags;
import org.eclipse.jdt.core.IBuffer;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IField;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.refactoring.CompilationUnitChange;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.contentassist.IContextInformation;
import org.eclipse.ltk.core.refactoring.TextChange;
import org.eclipse.ltk.core.refactoring.TextFileChange;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.text.edits.MultiTextEdit;
import org.eclipse.text.edits.ReplaceEdit;
import org.eclipse.text.edits.TextEdit;
import org.eclipse.ui.PlatformUI;
import org.jboss.tools.cdi.core.CDIImages;
import org.jboss.tools.cdi.internal.core.refactoring.CDIMarkerResolutionUtils;
import org.jboss.tools.cdi.ui.CDIUIMessages;
import org.jboss.tools.cdi.ui.CDIUIPlugin;
import org.jboss.tools.common.CommonPlugin;
import org.jboss.tools.common.quickfix.IQuickFix;
import org.jboss.tools.common.refactoring.MarkerResolutionUtils;
import org.jboss.tools.common.refactoring.TestableResolutionWithDialog;
import org.jboss.tools.common.ui.CommonUIPlugin;
/**
* @author Daniel Azarov
*/
public class MakeFieldProtectedMarkerResolution implements IQuickFix, TestableResolutionWithDialog{
private static final String PUBLIC = "public"; //$NON-NLS-1$
private static final String PROTECTED = "protected"; //$NON-NLS-1$
private String label;
private IField field;
private String description;
private ICompilationUnit cUnit;
public MakeFieldProtectedMarkerResolution(IField field){
cUnit = CDIMarkerResolutionUtils.getJavaMember(field).getCompilationUnit();
this.label = MessageFormat.format(CDIUIMessages.MAKE_FIELD_PROTECTED_MARKER_RESOLUTION_TITLE, new Object[]{field.getElementName()});
this.field = field;
description = getPreview();
}
@Override
public String getLabel() {
return label;
}
@Override
public void run(IMarker marker) {
do_run(false, false);
}
@Override
public void runForTest(IMarker marker) {
do_run(false, true);
}
private void do_run(boolean leaveDirty, boolean test){
if(!test){
Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
boolean cont = MessageDialog.openQuestion(shell, CDIUIMessages.QUESTION, CDIUIMessages.DECREASING_FIELD_VISIBILITY_MAY_CAUSE_COMPILATION_PROBLEMS);
if(!cont)
return;
}
try{
if(cUnit == null) {
return;
}
ICompilationUnit compilationUnit = cUnit.getWorkingCopy(new NullProgressMonitor());
CompilationUnitChange change = getChange(compilationUnit);
if(change.getEdit().hasChildren()){
if(leaveDirty){
change.setSaveMode(TextFileChange.LEAVE_DIRTY);
}
change.perform(new NullProgressMonitor());
cUnit.reconcile(ICompilationUnit.NO_AST, false, null, new NullProgressMonitor());
}
compilationUnit.discardWorkingCopy();
}catch(CoreException ex){
CDIUIPlugin.getDefault().logError(ex);
}
}
private CompilationUnitChange getChange(ICompilationUnit compilationUnit) throws JavaModelException{
CompilationUnitChange change = new CompilationUnitChange("", compilationUnit);
MultiTextEdit edit = new MultiTextEdit();
change.setEdit(edit);
IBuffer buffer = compilationUnit.getBuffer();
int flag = field.getFlags();
String text = buffer.getText(field.getSourceRange().getOffset(), field.getSourceRange().getLength());
int position = field.getSourceRange().getOffset();
if(Flags.isPublic(flag)){
position += text.indexOf(PUBLIC);
TextEdit re = new ReplaceEdit(position, PUBLIC.length(), PROTECTED);
edit.addChild(re);
}
return change;
}
private CompilationUnitChange getPreviewChange(){
if(cUnit != null){
try {
ICompilationUnit compilationUnit = cUnit.getWorkingCopy(new NullProgressMonitor());
CompilationUnitChange change = getChange(compilationUnit);
compilationUnit.discardWorkingCopy();
return change;
} catch (JavaModelException e) {
CommonPlugin.getDefault().logError(e);
}
}
return null;
}
private String getPreview(){
TextChange previewChange = getPreviewChange();
try {
return MarkerResolutionUtils.getPreview(previewChange);
} catch (CoreException e) {
CommonUIPlugin.getDefault().logError(e);
}
return label;
}
@Override
public String getDescription() {
return description;
}
@Override
public Image getImage() {
return CDIImages.getImage(CDIImages.QUICKFIX_EDIT);
}
@Override
public int getRelevance() {
return 100;
}
@Override
public void apply(IDocument document) {
do_run(true, false);
}
@Override
public Point getSelection(IDocument document) {
return null;
}
@Override
public String getAdditionalProposalInfo() {
return description;
}
@Override
public String getDisplayString() {
return label;
}
@Override
public IContextInformation getContextInformation() {
return null;
}
}