org.polymap.rhei.batik.toolkit.BatikDialogStatusAdapter.java Source code

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Here is the source code for org.polymap.rhei.batik.toolkit.BatikDialogStatusAdapter.java

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/* 
 * polymap.org
 * Copyright (C) 2015, Falko Brutigam. All rights reserved.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 3.0 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 */
package org.polymap.rhei.batik.toolkit;

import static org.polymap.core.ui.FormDataFactory.on;

import org.apache.commons.lang3.StringUtils;
import com.google.common.base.Throwables;

import org.eclipse.swt.widgets.Label;

import org.eclipse.core.runtime.IStatus;

import org.polymap.core.runtime.UIThreadExecutor;
import org.polymap.core.ui.FormLayoutFactory;
import org.polymap.core.ui.StatusDispatcher;
import org.polymap.core.ui.StatusDispatcher.Adapter;
import org.polymap.core.ui.StatusDispatcher.Style;

/**
 * Register with {@link StatusDispatcher}. Shows status in a {@link SimpleDialog}.
 *
 * @author <a href="http://www.polymap.de">Falko Brutigam</a>
 */
public class BatikDialogStatusAdapter implements Adapter {

    private static final DefaultToolkit tk = new DefaultToolkit(null, null);

    @Override
    public void handle(IStatus status, Style... styles) {
        UIThreadExecutor.asyncFast(() -> {
            SimpleDialog dialog = new SimpleDialog();
            // title
            switch (status.getSeverity()) {
            case IStatus.WARNING:
                dialog.title.put("Warning");
                break;
            case IStatus.ERROR:
                dialog.title.put("Application Error");
                break;
            case IStatus.INFO:
                dialog.title.put("Information");
                break;
            }
            // contents
            dialog.setContents(parent -> {
                parent.setLayout(FormLayoutFactory.defaults().spacing(0).create());
                Label msg = on(tk.createFlowText(parent, status.getMessage())).fill().noBottom().width(350)
                        .control();

                if (status.getException() != null) {
                    Throwable exc = status.getException();
                    Throwable root = Throwables.getRootCause(exc);
                    String reason = StringUtils.abbreviate(root.getMessage(), 40);
                    on(tk.createFlowText(parent, "**Reason**: " + reason)).fill().top(msg);
                }
            });
            dialog.addOkAction(() -> dialog.close());
            dialog.open();
        });
    }

}