eu.geclipse.aws.ec2.ui.wizards.AddAttributeWizardPage.java Source code

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Here is the source code for eu.geclipse.aws.ec2.ui.wizards.AddAttributeWizardPage.java

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/*****************************************************************************
 * Copyright (c) 2008 g-Eclipse Consortium 
 * 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
 *
 * Initial development of the original code was made for the
 * g-Eclipse project founded by European Union
 * project number: FP6-IST-034327  http://www.geclipse.eu/
 *
 * Contributors:
 *    Moritz Post - initial API and implementation
 *****************************************************************************/

package eu.geclipse.aws.ec2.ui.wizards;

import java.net.URL;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.wizard.WizardPage;
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.Composite;
import org.eclipse.swt.widgets.Label;

import eu.geclipse.aws.ec2.ui.internal.Activator;
import eu.geclipse.aws.util.AWSUtil;
import eu.geclipse.ui.widgets.StoredCombo;

/**
 * Creates a new {@link WizardPage} presenting the form elements for the
 * {@link AddAttributeWizard}.
 * 
 * @author Moritz Post
 */
public class AddAttributeWizardPage extends WizardPage {

    /** The id of this wizard page. */
    private static final String WIZARD_PAGE_ID = "eu.geclipse.aws.ec2.ui.wizards.addAttributeWizardPage"; //$NON-NLS-1$

    /** The widget to take the aws account id. */
    private StoredCombo storedComboAWSAccountId;

    /**
     * Create a new {@link WizardPage} and define title, description and image.
     */
    protected AddAttributeWizardPage() {
        super(AddAttributeWizardPage.WIZARD_PAGE_ID, Messages.getString("AddAttributeWizardPage.wizard_page_title"), //$NON-NLS-1$
                null);
        setDescription(Messages.getString("AddAttributeWizardPage.wizard_page_description")); //$NON-NLS-1$
        URL imgUrl = Activator.getDefault().getBundle().getEntry("icons/wizban/service_wiz.gif"); //$NON-NLS-1$
        setImageDescriptor(ImageDescriptor.createFromURL(imgUrl));
        setPageComplete(false);
    }

    public void createControl(final Composite parent) {

        Composite mainComp = new Composite(parent, SWT.NONE);
        mainComp.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        mainComp.setLayout(new GridLayout(2, false));

        Label label = new Label(mainComp, SWT.NONE);
        label.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false));
        label.setText(Messages.getString("AddAttributeWizardPage.label_aws_account_id")); //$NON-NLS-1$

        this.storedComboAWSAccountId = new StoredCombo(mainComp, SWT.SINGLE | SWT.LEAD | SWT.BORDER);
        this.storedComboAWSAccountId.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
        this.storedComboAWSAccountId.addModifyListener(new ModifyListener() {

            public void modifyText(final ModifyEvent e) {
                validateInput();
            }

        });

        setControl(mainComp);
    }

    /**
     * Validates the input in the form elements. If the input is not valid and
     * error message is presented and the {@link #setPageComplete(boolean)} flag
     * is set to <code>false</code>.
     */
    protected void validateInput() {
        String error = null;

        String transformedAccountNumber = AWSUtil.transformAWSAccountNumber(this.storedComboAWSAccountId.getText());

        if (transformedAccountNumber == null) {
            error = Messages.getString("AddAttributeWizardPage.error_valid_aws_account_id_required"); //$NON-NLS-1$
        }

        if (error == null) {
            setErrorMessage(null);
            setPageComplete(true);
        } else {
            setErrorMessage(error);
            setPageComplete(false);
        }
    }

    /**
     * Returns the inserted aws account id if it complies to the accepted aws
     * account id format as determined in the
     * {@link AWSUtil#transformAWSAccountNumber(String)} method.
     * 
     * @return The valid aws account id or <code>null</code> if the provided id
     *         does not comply or is empty
     */
    public String getAWSAccountId() {
        return AWSUtil.transformAWSAccountNumber(this.storedComboAWSAccountId.getText());
    }

}