es.deusto.weblab.client.ui.widgets.WlClockActivator.java Source code

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Here is the source code for es.deusto.weblab.client.ui.widgets.WlClockActivator.java

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/*
* Copyright (C) 2005 onwards University of Deusto
* All rights reserved.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution.
*
* This software consists of contributions made by many individuals, 
* listed below:
*
* Author: Pablo Ordua <pablo@ordunya.com>
*
*/
package es.deusto.weblab.client.ui.widgets;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Widget;

import es.deusto.weblab.client.ui.widgets.exceptions.WlWidgetException;

public class WlClockActivator extends HorizontalPanel implements IWlWidget {

    private final HorizontalPanel horizontalPanel;
    private final WlNumberChooser numberChooser;
    private final Button activate;
    private final Button deactivate;

    public interface IWlClockActivationListener {
        public void onActivate(int value);

        public void onDeactivate();
    }

    public interface IWlClockActivationErrorHandler {
        public void onError(Throwable t);
    }

    private IWlClockActivationListener listener;
    private IWlClockActivationErrorHandler errorHandler;

    @Override
    public void setWidth(String width) {
        super.setWidth(width);

        this.horizontalPanel.setWidth(width);
        this.horizontalPanel.setSpacing(25);
    }

    public WlClockActivator() {
        super();

        this.horizontalPanel = new HorizontalPanel();

        this.setWidth("100%");
        this.add(this.horizontalPanel);

        this.numberChooser = new WlNumberChooser(Integer.class);

        this.activate = new Button();
        this.deactivate = new Button();

        this.activate.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent sender) {
                if (WlClockActivator.this.listener != null) {
                    try {
                        WlClockActivator.this.listener
                                .onActivate(((Integer) WlClockActivator.this.numberChooser.getValue()).intValue());
                    } catch (final WlWidgetException e) {
                        if (WlClockActivator.this.errorHandler != null)
                            WlClockActivator.this.errorHandler.onError(e);
                    }
                }
            }
        });

        this.deactivate.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent sender) {
                if (WlClockActivator.this.listener != null)
                    WlClockActivator.this.listener.onDeactivate();
            }
        });

        this.activate.setText("Activate");
        this.deactivate.setText("Deactivate");

        this.horizontalPanel.add(this.numberChooser.getWidget());
        this.horizontalPanel.add(this.activate);
        this.horizontalPanel.add(this.deactivate);
    }

    @Override
    public void dispose() {
        this.numberChooser.dispose();
    }

    public void addClockActivationListener(IWlClockActivationListener listener) {
        this.listener = listener;
    }

    @Override
    public Widget getWidget() {
        return this;
    }

    public void setErrorHandler(IWlClockActivationErrorHandler handler) {
        this.errorHandler = handler;
    }

    @Override
    public void setStyleName(String style) {
        this.horizontalPanel.setStyleName(style);
    }
}