diff options
Diffstat (limited to 'plugins/uml/diagram/org.eclipse.papyrus.uml.diagram.activity/custom-src/org/eclipse/papyrus/uml/diagram/activity/helper/SafeDialogOpenerDuringValidation.java')
| -rw-r--r-- | plugins/uml/diagram/org.eclipse.papyrus.uml.diagram.activity/custom-src/org/eclipse/papyrus/uml/diagram/activity/helper/SafeDialogOpenerDuringValidation.java | 154 |
1 files changed, 77 insertions, 77 deletions
diff --git a/plugins/uml/diagram/org.eclipse.papyrus.uml.diagram.activity/custom-src/org/eclipse/papyrus/uml/diagram/activity/helper/SafeDialogOpenerDuringValidation.java b/plugins/uml/diagram/org.eclipse.papyrus.uml.diagram.activity/custom-src/org/eclipse/papyrus/uml/diagram/activity/helper/SafeDialogOpenerDuringValidation.java index 23fefc53709..77f10f30841 100644 --- a/plugins/uml/diagram/org.eclipse.papyrus.uml.diagram.activity/custom-src/org/eclipse/papyrus/uml/diagram/activity/helper/SafeDialogOpenerDuringValidation.java +++ b/plugins/uml/diagram/org.eclipse.papyrus.uml.diagram.activity/custom-src/org/eclipse/papyrus/uml/diagram/activity/helper/SafeDialogOpenerDuringValidation.java @@ -1,77 +1,77 @@ -/*****************************************************************************
- * Copyright (c) 2010 Atos Origin.
- *
- *
- * 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:
- * Atos Origin - Initial API and implementation
- *
- *****************************************************************************/
-package org.eclipse.papyrus.uml.diagram.activity.helper;
-
-import org.eclipse.core.commands.operations.IOperationApprover2;
-import org.eclipse.core.commands.operations.IOperationHistory;
-import org.eclipse.core.commands.operations.IUndoableOperation;
-import org.eclipse.core.commands.operations.OperationHistoryFactory;
-import org.eclipse.core.runtime.IAdaptable;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Status;
-
-/**
- * This class must be used to open a dialog during a validation. Its usage
- * avoids side effects with the Properties view, which would throw an {@link IllegalStateException}. The parameterizing class can be used to return
- * a result from the dialog (use {@link Void} if no result is expected).
- */
-public abstract class SafeDialogOpenerDuringValidation<ReturnType> {
-
- /**
- * This approver is used to disable any operation during opening of a popup
- * to avoid side effects
- */
- private static IOperationApprover2 operationDisapprover = new IOperationApprover2() {
-
- @Override
- public IStatus proceedUndoing(IUndoableOperation operation, IOperationHistory history, IAdaptable info) {
- return Status.CANCEL_STATUS;
- }
-
- @Override
- public IStatus proceedRedoing(IUndoableOperation operation, IOperationHistory history, IAdaptable info) {
- return Status.CANCEL_STATUS;
- }
-
- @Override
- public IStatus proceedExecuting(IUndoableOperation operation, IOperationHistory history, IAdaptable info) {
- return Status.CANCEL_STATUS;
- }
- };
-
- /**
- * Subclasses must implement this method with the dialog opening. If no
- * result is expected, return null.
- */
- protected abstract ReturnType openDialog();
-
- /**
- * Run the dialog opening with necessary precautions.
- */
- public final ReturnType execute() {
- /*
- * We are currently validating an ongoing operation. Opening a popup
- * here may have side-effects such as re-launching the same operation.
- * (the editor may have not been deactivated yet, and its loss of focus
- * will open a new operation) For this reason, we temporarily disable
- * all operations on the history, just enough time for opening the
- * popup.
- */
- IOperationHistory history = OperationHistoryFactory.getOperationHistory();
- history.addOperationApprover(operationDisapprover);
- ReturnType result = openDialog();
- history.removeOperationApprover(operationDisapprover);
- return result;
- }
-}
+/***************************************************************************** + * Copyright (c) 2010 Atos Origin. + * + * + * 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: + * Atos Origin - Initial API and implementation + * + *****************************************************************************/ +package org.eclipse.papyrus.uml.diagram.activity.helper; + +import org.eclipse.core.commands.operations.IOperationApprover2; +import org.eclipse.core.commands.operations.IOperationHistory; +import org.eclipse.core.commands.operations.IUndoableOperation; +import org.eclipse.core.commands.operations.OperationHistoryFactory; +import org.eclipse.core.runtime.IAdaptable; +import org.eclipse.core.runtime.IStatus; +import org.eclipse.core.runtime.Status; + +/** + * This class must be used to open a dialog during a validation. Its usage + * avoids side effects with the Properties view, which would throw an {@link IllegalStateException}. The parameterizing class can be used to return + * a result from the dialog (use {@link Void} if no result is expected). + */ +public abstract class SafeDialogOpenerDuringValidation<ReturnType> { + + /** + * This approver is used to disable any operation during opening of a popup + * to avoid side effects + */ + private static IOperationApprover2 operationDisapprover = new IOperationApprover2() { + + @Override + public IStatus proceedUndoing(IUndoableOperation operation, IOperationHistory history, IAdaptable info) { + return Status.CANCEL_STATUS; + } + + @Override + public IStatus proceedRedoing(IUndoableOperation operation, IOperationHistory history, IAdaptable info) { + return Status.CANCEL_STATUS; + } + + @Override + public IStatus proceedExecuting(IUndoableOperation operation, IOperationHistory history, IAdaptable info) { + return Status.CANCEL_STATUS; + } + }; + + /** + * Subclasses must implement this method with the dialog opening. If no + * result is expected, return null. + */ + protected abstract ReturnType openDialog(); + + /** + * Run the dialog opening with necessary precautions. + */ + public final ReturnType execute() { + /* + * We are currently validating an ongoing operation. Opening a popup + * here may have side-effects such as re-launching the same operation. + * (the editor may have not been deactivated yet, and its loss of focus + * will open a new operation) For this reason, we temporarily disable + * all operations on the history, just enough time for opening the + * popup. + */ + IOperationHistory history = OperationHistoryFactory.getOperationHistory(); + history.addOperationApprover(operationDisapprover); + ReturnType result = openDialog(); + history.removeOperationApprover(operationDisapprover); + return result; + } +} |