gov.nasa.ensemble.common.ui.wizard.DefaultOverwriteQueryImpl.java Source code

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Here is the source code for gov.nasa.ensemble.common.ui.wizard.DefaultOverwriteQueryImpl.java

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/*******************************************************************************
 * Copyright 2014 United States Government as represented by the
 * Administrator of the National Aeronautics and Space Administration.
 * All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package gov.nasa.ensemble.common.ui.wizard;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.dialogs.IOverwriteQuery;
import org.eclipse.ui.internal.ide.IDEWorkbenchMessages;

@SuppressWarnings("restriction")
public class DefaultOverwriteQueryImpl implements IOverwriteQuery {
    private boolean alwaysOverwrite = false;
    private boolean canceled = false;
    private Shell shell;

    public DefaultOverwriteQueryImpl(Shell shell) {
        this.shell = shell;
    }

    @Override
    public String queryOverwrite(String pathString) {
        if (alwaysOverwrite) {
            return ALL;
        }
        final String returnCode[] = { CANCEL };
        final String msg = NLS.bind(IDEWorkbenchMessages.CopyFilesAndFoldersOperation_overwriteQuestion,
                pathString);
        final String[] options = { IDialogConstants.YES_LABEL, IDialogConstants.YES_TO_ALL_LABEL,
                IDialogConstants.NO_LABEL, IDialogConstants.CANCEL_LABEL };
        shell.getDisplay().syncExec(new Runnable() {
            @Override
            public void run() {
                MessageDialog dialog = new MessageDialog(shell,
                        IDEWorkbenchMessages.CopyFilesAndFoldersOperation_question, null, msg,
                        MessageDialog.QUESTION, options, 0) {
                    @Override
                    protected int getShellStyle() {
                        return super.getShellStyle() | SWT.SHEET;
                    }
                };
                dialog.open();
                int returnVal = dialog.getReturnCode();
                String[] returnCodes = { YES, ALL, NO, CANCEL };
                returnCode[0] = returnVal == -1 ? CANCEL : returnCodes[returnVal];
            }
        });
        if (returnCode[0] == ALL) {
            alwaysOverwrite = true;
        } else if (returnCode[0] == CANCEL) {
            canceled = true;
        }
        return returnCode[0];
    }

    public boolean isCanceled() {
        return canceled;
    }
}