content: /*******************************************************************************
   * Copyright (c) 2000, 2008 IBM Corporation and others.
   * 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:
   *     IBM Corporation - initial API and implementation
   *******************************************************************************/
  package ts.eclipse.ide.jsdt.internal.ui.refactoring.actions;
  
  import org.eclipse.jface.dialogs.IDialogConstants;
  import org.eclipse.ltk.core.refactoring.Refactoring;
  import org.eclipse.ltk.core.refactoring.RefactoringStatus;
  import org.eclipse.ltk.ui.refactoring.RefactoringWizard;
  import org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation;
  import org.eclipse.swt.widgets.Shell;
  import org.eclipse.wst.jsdt.core.JavaScriptModelException;
  
  import ts.eclipse.ide.jsdt.internal.ui.refactoring.RefactoringSaveHelper;
  
  /**
   * A helper class to activate the UI of a refactoring
   */
  public class RefactoringStarter {
  
  	private RefactoringStatus fStatus;
  
  	/**
  	 * @param refactoring
  	 * @param wizard
  	 * @param parent
  	 * @param dialogTitle
  	 * @param saveMode
  	 *            a save mode from {@link RefactoringSaveHelper}
  	 * @return <code>true</code> if the refactoring was executed,
  	 *         <code>false</code> otherwise
  	 * @throws JavaScriptModelException
  	 */
  	public boolean activate(Refactoring refactoring, RefactoringWizard wizard, Shell parent, String dialogTitle,
  			int saveMode) {
  		RefactoringSaveHelper saveHelper = new RefactoringSaveHelper(saveMode);
  		if (!canActivate(saveHelper, parent))
  			return false;
  
  		try {
  			RefactoringWizardOpenOperation op = new RefactoringWizardOpenOperation(wizard);
  			int result = op.run(parent, dialogTitle);
  			fStatus = op.getInitialConditionCheckingStatus();
  			if (result == IDialogConstants.CANCEL_ID
  					|| result == RefactoringWizardOpenOperation.INITIAL_CONDITION_CHECKING_FAILED) {
  				saveHelper.triggerIncrementalBuild();
  				return false;
  			} else {
  				return true;
  			}
  		} catch (InterruptedException e) {
  			return false; // User action got cancelled
  		}
  	}
  
  	public RefactoringStatus getInitialConditionCheckingStatus() {
  		return fStatus;
  	}
  
  	private boolean canActivate(RefactoringSaveHelper saveHelper, Shell shell) {
  		return saveHelper.saveEditors(shell);
  	}
  }
  