org.eclipse.virgo.ide.bundlor.ui/src/org/eclipse/virgo/ide/bundlor/ui/internal/properties/BundlorPropertiesPathDialog.java

/*********************************************************************
 * Copyright (c) 2013 Eclipse Foundation
 *
 * This program and the accompanying materials are made
 * available under the terms of the Eclipse Public License 2.0
 * which is available at https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
**********************************************************************/

package org.eclipse.virgo.ide.bundlor.ui.internal.properties;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
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;

/**
 * @author Leo Dos Santos
 */
public class BundlorPropertiesPathDialog extends Dialog {

    private String propertiesPath;

    public BundlorPropertiesPathDialog(Shell parentShell) {
        super(parentShell);
    }

    @Override
    protected Control createButtonBar(Composite parent) {
        Control buttonBar = super.createButtonBar(parent);
        getButton(OK).setEnabled(false);
        return buttonBar;
    }

    @Override
    protected Control createDialogArea(Composite parent) {
        getShell().setText("Add properties file");
        Composite control = (Composite) super.createDialogArea(parent);

        Composite composite = new Composite(control, SWT.NONE);
        GridDataFactory.fillDefaults().applyTo(composite);
        GridLayoutFactory.fillDefaults().numColumns(2).applyTo(composite);

        Label description = new Label(composite, SWT.NONE);
        description.setText("Enter the path to a properties file that should be used for variable substitution.");
        GridDataFactory.fillDefaults().span(2, 1).applyTo(description);

        Label pathLabel = new Label(composite, SWT.NONE);
        pathLabel.setText("Path:");
        GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER).applyTo(pathLabel);

        final Text pathText = new Text(composite, SWT.BORDER);
        GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER).grab(true, false).hint(350, SWT.DEFAULT).applyTo(pathText);
        pathText.addModifyListener(new ModifyListener() {

            public void modifyText(ModifyEvent e) {
                BundlorPropertiesPathDialog.this.propertiesPath = pathText.getText();
                update();
            }
        });

        return control;
    }

    public String getPropertiesPath() {
        return this.propertiesPath;
    }

    private void update() {
        if (this.propertiesPath == null || this.propertiesPath.length() == 0) {
            getButton(OK).setEnabled(false);
        } else {
            getButton(OK).setEnabled(true);
        }
    }

}