1 files changed, 143 insertions, 0 deletions
diff --git a/rba.tool.editor.ui/src/rba/tool/editor/ui/editor/model/edit/refactoring/RBAModelRenameElementUtil.java b/rba.tool.editor.ui/src/rba/tool/editor/ui/editor/model/edit/refactoring/RBAModelRenameElementUtil.java
new file mode 100644
index 0000000..cd84388
--- /dev/null
+++ b/rba.tool.editor.ui/src/rba/tool/editor/ui/editor/model/edit/refactoring/RBAModelRenameElementUtil.java
@@ -0,0 +1,143 @@
+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);
+    }
+}