org.springframework.ide.eclipse.wizard.ui.BeanChildDialog.java Source code

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Here is the source code for org.springframework.ide.eclipse.wizard.ui.BeanChildDialog.java

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/*******************************************************************************
 *  Copyright (c) 2012 VMware, Inc.
 *  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:
 *      VMware, Inc. - initial API and implementation
 *******************************************************************************/
package org.springframework.ide.eclipse.wizard.ui;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
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.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement;
import org.springframework.ide.eclipse.wizard.core.WizardContentAssistConverter;

/**
 * Abstract parent dialog for displaying and editing bean property or
 * constructor arg
 * @author Terry Denney
 * @author Leo Dos Santos
 * @author Christian Dupuis
 * @since 2.0
 */
@SuppressWarnings("restriction")
public abstract class BeanChildDialog extends Dialog {

    protected IDOMElement element;

    protected BeanWizard wizard;

    private CLabel messageLabel;

    private final boolean isNew;

    private final String title;

    protected BeanChildDialog(Shell parentShell, BeanWizard wizard, IDOMElement element, String title,
            boolean isNew) {
        super(parentShell);

        this.wizard = wizard;
        this.element = element;
        this.title = title;
        this.isNew = isNew;
    }

    protected void addListener(final Text text, final String attributeName) {
        text.addModifyListener(new ModifyListener() {
            public void modifyText(ModifyEvent e) {
                updateAttribute(attributeName, text.getText());
            }
        });
    }

    @Override
    protected void buttonPressed(int buttonId) {
        if (buttonId == Dialog.CANCEL) {
            resetAttributes();
        }
        super.buttonPressed(buttonId);
    }

    protected abstract void createAttributes(Composite container);

    @Override
    protected Control createContents(Composite parent) {
        Control control = super.createContents(parent);

        if (!isNew) {
            validateAttributes();
        }

        return control;
    }

    @Override
    protected Control createDialogArea(Composite parent) {
        getShell().setText(title);

        Composite container = new Composite(parent, SWT.NONE);
        GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, true);
        layoutData.widthHint = 500;
        container.setLayoutData(layoutData);
        GridLayout layout = new GridLayout(2, false);
        layout.horizontalSpacing = 10;
        layout.marginWidth = 10;
        container.setLayout(layout);

        messageLabel = new CLabel(container, SWT.NONE);
        messageLabel.setText(getDefaultMessage());
        GridData descriptionData = new GridData(SWT.FILL, SWT.FILL, true, false);
        descriptionData.horizontalSpan = 2;
        descriptionData.verticalIndent = 5;
        messageLabel.setLayoutData(descriptionData);

        createAttributes(container);

        return container;
    }

    protected abstract boolean getCanFinish();

    protected abstract String getDefaultMessage();

    protected abstract String getMessage();

    protected void resetAttribute(String attributeName, String originalValue) {
        if (originalValue != null) {
            element.setAttribute(attributeName, originalValue);
        } else {
            element.removeAttribute(attributeName);
        }
    }

    protected abstract void resetAttributes();

    protected void updateAttribute(String attributeName, String value) {
        if (value.length() > 0) {
            element.setAttribute(attributeName, value);
        } else {
            element.removeAttribute(attributeName);
        }

        validateAttribute(attributeName, value);
    }

    private void updateButton() {
        getButton(Dialog.OK).setEnabled(getCanFinish());
    }

    protected void updateMessage() {
        String message = getMessage();
        if (message != null) {
            if (BeanWizard.getIgnoreError()) {
                messageLabel.setImage(JFaceResources.getImage(Dialog.DLG_IMG_MESSAGE_WARNING));
            } else {
                messageLabel.setImage(JFaceResources.getImage(Dialog.DLG_IMG_MESSAGE_ERROR));
            }
            messageLabel.setText(message);
        } else {
            messageLabel.setImage(null);
            messageLabel.setText(getDefaultMessage());
        }

        messageLabel.redraw();

    }

    protected void validateAttribute(String attributeName, String value) {
        WizardContentAssistConverter contentAssistConverter = new WizardContentAssistConverter(element,
                element.getAttributeNode(attributeName), wizard.getBeanFile(), wizard.getOriginalDocument());

        validateAttribute(attributeName, value, contentAssistConverter);
        updateButton();
    }

    protected abstract void validateAttribute(String attributeName, String value,
            WizardContentAssistConverter contentAssistConverter);

    protected abstract void validateAttributes();
}