/*******************************************************************************
* Copyright (c) 2009 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.jsf.ui.el.refactoring;
import java.util.List;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.text.TextSelection;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.ltk.core.refactoring.participants.RenameRefactoring;
import org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.internal.services.IWorkbenchLocationService;
import org.eclipse.ui.menus.AbstractContributionFactory;
import org.eclipse.ui.menus.IContributionRoot;
import org.eclipse.ui.part.FileEditorInput;
import org.eclipse.ui.services.IServiceLocator;
import org.jboss.tools.common.el.core.ELReference;
import org.jboss.tools.common.el.core.model.ELExpression;
import org.jboss.tools.common.el.core.model.ELObject;
import org.jboss.tools.common.el.core.resolver.ELContext;
import org.jboss.tools.common.el.core.resolver.ELResolution;
import org.jboss.tools.common.el.core.resolver.ELResolver;
import org.jboss.tools.common.el.core.resolver.ELSegment;
import org.jboss.tools.common.el.core.resolver.JavaMemberELSegment;
import org.jboss.tools.common.el.core.resolver.MessagePropertyELSegment;
import org.jboss.tools.common.model.ui.editor.EditorPartWrapper;
import org.jboss.tools.common.propertieseditor.PropertiesCompoundEditor;
import org.jboss.tools.jsf.el.refactoring.RenameELVariableProcessor;
import org.jboss.tools.jsf.el.refactoring.RenameMessagePropertyProcessor;
import org.jboss.tools.jsf.ui.JsfUIMessages;
import org.jboss.tools.jsf.ui.JsfUiPlugin;
import org.jboss.tools.jst.web.kb.PageContextFactory;
import org.jboss.tools.jst.web.ui.editors.WebCompoundEditor;
/**
* @author Daniel Azarov
*/
public class ELRefactorContributionFactory extends AbstractContributionFactory {
//private static final String ANNOTATION_NAME = "org.jboss.seam.annotations.Name"; //$NON-NLS-1$
private static final String JAVA_EXT = "java"; //$NON-NLS-1$
private static final String XML_EXT = "xml"; //$NON-NLS-1$
private static final String XHTML_EXT = "xhtml"; //$NON-NLS-1$
private static final String JSP_EXT = "jsp"; //$NON-NLS-1$
private static final String PROPERTIES_EXT = "properties"; //$NON-NLS-1$
//static private String selectedText;
static private IFile editorFile;
//private String fileContent;
private IEditorPart editor;
private Shell shell;
public ELRefactorContributionFactory(){
super("","");
}
public ELRefactorContributionFactory(String location, String namespace){
super(location, namespace);
}
@Override
public void createContributionItems(IServiceLocator serviceLocator,
IContributionRoot additions) {
if(serviceLocator.hasService(IWorkbenchLocationService.class)){
IWorkbenchLocationService service = (IWorkbenchLocationService)serviceLocator.getService(IWorkbenchLocationService.class);
editor = service.getWorkbenchWindow().getActivePage().getActiveEditor();
shell = service.getWorkbench().getActiveWorkbenchWindow().getShell();
if(!(editor.getEditorInput() instanceof FileEditorInput))
return;
FileEditorInput input = (FileEditorInput)editor.getEditorInput();
editorFile = input.getFile();
String ext = editorFile.getFileExtension();
if (!JAVA_EXT.equalsIgnoreCase(ext)
&& !XML_EXT.equalsIgnoreCase(ext)
&& !XHTML_EXT.equalsIgnoreCase(ext)
&& !JSP_EXT.equalsIgnoreCase(ext)
&& !PROPERTIES_EXT.equalsIgnoreCase(ext))
return;
MenuManager mm = new MenuManager(JsfUIMessages.REFACTOR_CONTRIBUTOR_MAIN_MENU);
mm.setVisible(true);
boolean separatorIsAdded = false;
ISelection sel = editor.getEditorSite().getSelectionProvider().getSelection();
if(sel == null || sel.isEmpty())
return;
if(sel instanceof StructuredSelection){
if(editor instanceof PropertiesCompoundEditor){
sel = ((PropertiesCompoundEditor)editor).getActiveEditor().getSite().getSelectionProvider().getSelection();
}else if(editor instanceof EditorPartWrapper){
EditorPartWrapper wrapperEditor = (EditorPartWrapper)editor;
if(wrapperEditor.getEditor() instanceof WebCompoundEditor){
WebCompoundEditor xmlEditor = (WebCompoundEditor)wrapperEditor.getEditor();
sel = xmlEditor.getActiveEditor().getSite().getSelectionProvider().getSelection();
}
}else if(editor instanceof WebCompoundEditor)
sel = ((WebCompoundEditor)editor).getActiveEditor().getSite().getSelectionProvider().getSelection();
}
if(sel instanceof TextSelection){
TextSelection selection = (TextSelection)sel;
ELSegment segment = findELSegment(editorFile, selection);
if(segment == null)
return;
if(segment instanceof MessagePropertyELSegment){
mm.add(new RenameMessagePropertyAction((MessagePropertyELSegment)segment));
if(!separatorIsAdded){
additions.addContributionItem(new Separator(), null);
separatorIsAdded = true;
}
}
if(segment instanceof JavaMemberELSegment){
mm.add(new RenameELVariableAction((JavaMemberELSegment)segment));
if(!separatorIsAdded){
additions.addContributionItem(new Separator(), null);
separatorIsAdded = true;
}
}
if(mm.getSize() > 0)
additions.addContributionItem(mm, null);
}
}
}
public static ELSegment findELSegment(IFile file, TextSelection selection){
ELContext context = PageContextFactory.createPageContext(file);
if(context == null)
return null;
ELReference reference = context.getELReference(selection.getOffset());
if(reference == null)
return null;
ELResolver[] resolvers = context.getElResolvers();
for(ELExpression operand : reference.getEl()){
ELSegment segment = getSegment(resolvers, context, selection, reference, operand);
if(segment != null){
return segment;
}
for(ELObject child : operand.getChildren()){
if(child instanceof ELExpression){
segment = getSegment(resolvers, context, selection, reference, (ELExpression)child);
if(segment != null){
return segment;
}
}
}
}
return null;
}
private static ELSegment getSegment(ELResolver[] resolvers, ELContext context, TextSelection selection, ELReference reference, ELExpression operand){
for (ELResolver resolver : resolvers) {
ELResolution resolution = resolver.resolve(context, operand, selection.getOffset());
if(resolution == null)
continue;
List<ELSegment> segments = resolution.getSegments();
for(ELSegment segment : segments){
if(!segment.isResolved())
break;
if(segment.getSourceReference().getStartPosition() >= 0 && segment.getSourceReference().getLength() >= 0 &&
selection.getOffset() <= reference.getStartPosition()+segment.getSourceReference().getStartPosition() &&
selection.getOffset()+selection.getLength() >= reference.getStartPosition()+segment.getSourceReference().getStartPosition()+segment.getSourceReference().getLength() &&
(segment instanceof MessagePropertyELSegment || segment instanceof JavaMemberELSegment)){
return segment;
}
}
}
return null;
}
private static void saveAndBuild(){
if(!JsfUiPlugin.getDefault().getWorkbench().getActiveWorkbenchWindow().getActivePage().saveAllEditors(true))
return;
try {
Job.getJobManager().join(ResourcesPlugin.FAMILY_AUTO_BUILD, null);
} catch (InterruptedException e) {
// do nothing
}
}
public static void invokeRenameELVariableWizard(String oldName, Shell activeShell) {
saveAndBuild();
RenameELVariableProcessor processor = new RenameELVariableProcessor(editorFile, oldName);
RenameRefactoring refactoring = new RenameRefactoring(processor);
RenameELVariableWizard wizard = new RenameELVariableWizard(refactoring, editorFile);
RefactoringWizardOpenOperation op = new RefactoringWizardOpenOperation(wizard);
try {
String titleForFailedChecks = JsfUIMessages.EL_REFACTOR_RENAME_HANDLER_ERROR;
op.run(activeShell, titleForFailedChecks);
} catch (final InterruptedException irex) {
// operation was canceled
}
}
public static void invokeRenameMessagePropertyWizard(MessagePropertyELSegment segment, Shell activeShell) {
saveAndBuild();
RenameMessagePropertyProcessor processor = new RenameMessagePropertyProcessor(editorFile, segment);
RenameRefactoring refactoring = new RenameRefactoring(processor);
RenameMessagePropertyWizard wizard = new RenameMessagePropertyWizard(refactoring, editorFile);
RefactoringWizardOpenOperation op = new RefactoringWizardOpenOperation(wizard);
try {
String titleForFailedChecks = JsfUIMessages.EL_REFACTOR_RENAME_HANDLER_ERROR;
op.run(activeShell, titleForFailedChecks);
} catch (final InterruptedException irex) {
// operation was canceled
}
}
class RenameELVariableAction extends Action{
JavaMemberELSegment segment;
public RenameELVariableAction(JavaMemberELSegment segment){
super(JsfUIMessages.REFACTOR_CONTRIBUTOR_RENAME_EL_VARIABLE);
this.segment = segment;
}
public void run(){
saveAndBuild();
invokeRenameELVariableWizard(segment.getToken().getText(), shell);
}
}
class RenameMessagePropertyAction extends Action{
MessagePropertyELSegment segment;
public RenameMessagePropertyAction(MessagePropertyELSegment segment){
super(JsfUIMessages.REFACTOR_CONTRIBUTOR_RENAME_MESSAGE_PROPERTY);
this.segment = segment;
}
public void run(){
saveAndBuild();
invokeRenameMessagePropertyWizard(segment, shell);
}
}
}