MapDeviceDatabaseHandler.java

/*
* Copyright (C) 2012 The Android Open Source Project
*
* 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 com.motorolamobility.studio.android.db.devices.ui.action;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.IHandler;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IInputValidator;
import org.eclipse.jface.dialogs.InputDialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

import com.motorolamobility.studio.android.db.core.ui.IDbMapperNode;
import com.motorolamobility.studio.android.db.core.ui.ITreeNode;
import com.motorolamobility.studio.android.db.devices.i18n.DbDevicesNLS;

public class MapDeviceDatabaseHandler extends AbstractHandler implements IHandler
{

    private IDbMapperNode dbMapperNode;

    public MapDeviceDatabaseHandler()
    {
        //do nothing
    }

    public MapDeviceDatabaseHandler(ITreeNode node)
    {
        if (node instanceof IDbMapperNode)
        {
            this.dbMapperNode = (IDbMapperNode) node;
        }
    }

    public Object execute(ExecutionEvent event) throws ExecutionException
    {
        if (dbMapperNode != null)
        {

            Shell shell = Display.getCurrent().getActiveShell();
            InputDialog dialog =
                    new InputDialog(shell,
                            DbDevicesNLS.UI_MapDatabaseAction_QueryDbPath_DialogTitle,
                            DbDevicesNLS.UI_MapDatabaseAction_QueryDbPath_DialogMessage, "", //$NON-NLS-1$
                            new IInputValidator()
                            {

                                public String isValid(String newText)
                                {
                                    String errorMsg = null;
                                    boolean isValid = false;

                                    if (newText.startsWith("/sdcard/") //$NON-NLS-1$
                                            && newText.length() > "/sdcard/".length()) //$NON-NLS-1$
                                    {
                                        isValid = true;
                                    }
                                    if (!isValid)
                                    {
                                        if (newText.startsWith("/mnt/sdcard/") //$NON-NLS-1$
                                                && newText.length() > "/mnt/sdcard/".length()) //$NON-NLS-1$
                                        {
                                            isValid = true;
                                        }
                                    }

                                    if (!isValid)
                                    {
                                        errorMsg =
                                                DbDevicesNLS.MapDatabaseAction_Error_WrongDatabasePlace;
                                    }

                                    return errorMsg;
                                }
                            });

            dialog.setBlockOnOpen(true);
            int result = dialog.open();

            String dbPath = null;

            if (result == Dialog.OK)
            {
                dbPath = dialog.getValue();
            }

            if (dbPath != null)
            {
                dbMapperNode.map(new Path(dbPath));
            }
        }
        return null;
    }
}