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package rba.tool.editor.ui.editor.model.edit.refactoring;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.text.ITextSelection;
import org.eclipse.swt.widgets.Display;
import org.eclipse.xtext.ide.refactoring.IRenameStrategy2;
import org.eclipse.xtext.nodemodel.INode;
import org.eclipse.xtext.resource.EObjectAtOffsetHelper;
import org.eclipse.xtext.resource.IGlobalServiceProvider;
import org.eclipse.xtext.resource.ILocationInFileProvider;
import org.eclipse.xtext.resource.XtextResource;
import org.eclipse.xtext.ui.editor.XtextEditor;
import org.eclipse.xtext.ui.editor.utils.EditorUtils;
import org.eclipse.xtext.ui.refactoring.IRenameStrategy;
import org.eclipse.xtext.ui.refactoring.IRenameStrategy.Provider.NoSuchStrategyException;
import org.eclipse.xtext.ui.refactoring.ui.IRenameContextFactory;
import org.eclipse.xtext.ui.refactoring.ui.IRenameElementContext;
import org.eclipse.xtext.ui.refactoring.ui.RefactoringPreferences;
import org.eclipse.xtext.ui.refactoring.ui.RefactoringType;
import org.eclipse.xtext.ui.refactoring2.rename.ISimpleNameProvider;
import org.eclipse.xtext.util.ITextRegion;
import org.eclipse.xtext.util.TextRegion;
import org.eclipse.xtext.util.concurrent.IUnitOfWork;
import com.google.inject.Inject;
import rba.tool.editor.ui.activator.ExtensionEditorActivator;
public class RBAModelRenameElementUtil {
public static RBAModelRenameElementUtil INSTANCE = new RBAModelRenameElementUtil();
@Inject
private EObjectAtOffsetHelper eObjectAtOffsetHelper;
@Inject
private ILocationInFileProvider locationInFileProvider;
@Inject
protected RBAModelRenameRefactoringController renameRefactoringController;
@Inject
protected IGlobalServiceProvider globalServiceProvider;
@Inject
protected RefactoringPreferences preferences;
@Inject
protected IRenameContextFactory renameContextFactory;
@Inject
protected RBAModelSyncUtil syncUtil;
private RBAModelRenameElementUtil() {
ExtensionEditorActivator.getInstance().injectMembers(this);
}
public void execute(String value) {
try {
final XtextEditor editor = EditorUtils.getActiveXtextEditor();
if (editor != null) {
syncUtil.totalSync(preferences.isSaveAllBeforeRefactoring(), renameRefactoringController.getActiveLinkedMode() == null);
final ITextSelection selection = (ITextSelection) editor.getSelectionProvider().getSelection();
IRenameElementContext renameElementContext = editor.getDocument().priorityReadOnly(new IUnitOfWork<IRenameElementContext, XtextResource>() {
@Override
public IRenameElementContext exec(XtextResource resource) throws Exception {
EObject selectedElement = eObjectAtOffsetHelper.resolveElementAt(resource, selection.getOffset());
if (selectedElement != null) {
IRenameElementContext renameElementContext = renameContextFactory.createRenameElementContext(selectedElement, editor, selection, resource);
if (isRefactoringEnabled(renameElementContext, resource))
return renameElementContext;
}
return null;
}
});
if (renameElementContext != null) {
startRenameElement(renameElementContext, value);
}
}
} catch (OperationCanceledException e) {
MessageDialog.openError(Display.getCurrent().getActiveShell(), "Error initializing refactoring 1", "\nSee log for details");
// cancelled by user, ok
return;
} catch (InterruptedException e) {
MessageDialog.openError(Display.getCurrent().getActiveShell(), "Error initializing refactoring 2", "\nSee log for details");
// cancelled by user, ok
return;
} catch (Exception exc) {
exc.printStackTrace();
MessageDialog.openError(Display.getCurrent().getActiveShell(), "Error initializing refactoring", exc.getMessage() + "\nSee log for details");
}
}
public IRenameElementContext createRenameElementContext(EObject targetElement, final XtextEditor triggeringEditor, final ITextSelection selection,
XtextResource triggeringResource) {
return renameContextFactory.createRenameElementContext(targetElement, triggeringEditor, selection, triggeringResource);
}
protected boolean isRefactoringEnabled(IRenameElementContext renameElementContext, XtextResource resource) {
ResourceSet resourceSet = resource.getResourceSet();
if (renameElementContext != null && resourceSet != null) {
EObject targetElement = resourceSet.getEObject(renameElementContext.getTargetElementURI(), true);
if (targetElement != null && !targetElement.eIsProxy()) {
if (targetElement.eResource() == resource && renameElementContext.getTriggeringEditorSelection() instanceof ITextSelection) {
ITextSelection textSelection = (ITextSelection) renameElementContext.getTriggeringEditorSelection();
ITextRegion selectedRegion = new TextRegion(textSelection.getOffset(), textSelection.getLength());
INode crossReferenceNode = eObjectAtOffsetHelper.getCrossReferenceNode(resource, selectedRegion);
if (crossReferenceNode == null) {
// selection is on the declaration. make sure it's the name
ITextRegion significantRegion = locationInFileProvider.getSignificantTextRegion(targetElement);
if (!significantRegion.contains(selectedRegion))
return false;
}
}
IRenameStrategy.Provider renameStrategyProvider = globalServiceProvider.findService(targetElement, IRenameStrategy.Provider.class);
try {
if (renameStrategyProvider.get(targetElement, renameElementContext) != null) {
return true;
} else {
IRenameStrategy2 strategy2 = globalServiceProvider.findService(targetElement, IRenameStrategy2.class);
ISimpleNameProvider simpleNameProvider = globalServiceProvider.findService(targetElement, ISimpleNameProvider.class);
return strategy2 != null && simpleNameProvider.canRename(targetElement);
}
} catch (NoSuchStrategyException e) {
MessageDialog.openInformation(Display.getCurrent().getActiveShell(), "Cannot rename element", e.getMessage());
}
}
}
return false;
}
protected void startRenameElement(IRenameElementContext renameElementContext, String value) throws InterruptedException {
// renameRefactoringController.startRefactoring(renameElementContext);
// renameRefactoringController.startRefactoring(RefactoringType.REFACTORING_DIALOG);
renameRefactoringController.initialize(renameElementContext);
renameRefactoringController.setNewNameText(value);
renameRefactoringController.startRefactoring(RefactoringType.REFACTORING_DIALOG);
}
}
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