BundleDialog.java

/*
 * Copyright 2008-2012 Amazon Technologies, Inc. 
 *
 * 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://aws.amazon.com/apache2.0
 *
 * This file 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.amazonaws.eclipse.ec2.ui.views.instances;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

/**
 * Dialog to allow users to specify options for bundling AMIs from instances.
 */
class BundleDialog extends Dialog {

	private Text bucketNameText;
	private Text imageNameText;
	
	private String bucketName;
	private String imageName;

	/**
	 * Creates a new Bundle Dialog parented by the specified shell.
	 * 
	 * @param parentShell
	 *            The parent shell for this new Dialog.
	 */
	protected BundleDialog(Shell parentShell) {
		super(parentShell);
	}

	public String getS3Bucket() {
		return bucketName;
	}
	
	public String getImageName() {
		return imageName;
	}

	/*
	 * Dialog Interface
	 */
	
	/* (non-Javadoc)
	 * @see org.eclipse.jface.dialogs.Dialog#createButtonBar(org.eclipse.swt.widgets.Composite)
	 */
	@Override
	protected Control createButtonBar(Composite parent) {
		Control control = super.createButtonBar(parent);
		
		updateOkButton();
		
		return control;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
	 */
	@Override
	protected Control createDialogArea(Composite parent) {
		ModifyListener listener = new ModifyListener() {
			public void modifyText(ModifyEvent e) {
				updateOkButton();
			}
		};
		
		this.getShell().setText("Bundle Image");
		
		Composite composite = new Composite(parent, SWT.BORDER);		
		GridLayout gridLayout = new GridLayout(2, false);
		gridLayout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
		gridLayout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);
		gridLayout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);
		gridLayout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);

		composite.setLayout(gridLayout);
		composite.setLayoutData(new GridData(GridData.FILL_BOTH));

		GridData gridData;
					
		Label label = new Label(composite, SWT.NONE);
		label.setText("Amazon S3 Bucket:");
		gridData = new GridData(GridData.FILL_BOTH);
		gridData.horizontalAlignment = SWT.LEFT;
		gridData.verticalAlignment = SWT.CENTER;
		label.setLayoutData(gridData);

		bucketNameText = new Text(composite, SWT.BORDER);
		bucketNameText.addModifyListener(listener);
		gridData = new GridData(GridData.FILL_BOTH);
		gridData.widthHint = 300;
		bucketNameText.setLayoutData(gridData);
		
		
		
		label = new Label(composite, SWT.NONE);
		label.setText("Image Name:");
		gridData = new GridData(GridData.FILL_BOTH);
		gridData.horizontalAlignment = SWT.LEFT;
		gridData.verticalAlignment = SWT.CENTER;
		label.setLayoutData(gridData);
		
		imageNameText = new Text(composite, SWT.BORDER);
		imageNameText.addModifyListener(listener);
		gridData = new GridData(GridData.FILL_BOTH);
		gridData.widthHint = 300;
		imageNameText.setLayoutData(gridData);
		

		applyDialogFont(composite);
		
		return composite;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jface.dialogs.Dialog#okPressed()
	 */
	@Override
	protected void okPressed() {
		imageName = imageNameText.getText();
		bucketName = bucketNameText.getText();
		
		super.okPressed();
	}

	/*
	 * Private Interface
	 */
	
	private void updateOkButton() {
		boolean b = true;
		if (bucketNameText == null || bucketNameText.getText().length() == 0 || imageNameText == null || imageNameText.getText().length() == 0) {
			b = false;
		}
		
		Button okButton = getButton(OK);
		if (okButton == null) {
			return;
		}
		
		okButton.setEnabled(b);
	}

}