package org.litesoft.GWT.client.widgets;

import com.google.gwt.safehtml.shared.*;
import com.google.gwt.user.client.*;
import com.google.gwt.user.client.ui.*;
import com.sun.istack.internal.*;

public class SpanPanel extends ComplexPanel
{
    /**
     * Creates an HTML panel based on a span.
     */
    public SpanPanel()
    {
        setElement( DOM.createSpan() );
    }

    /**
     * Creates an HTML panel with the specified HTML contents inside a span element.
     *
     * @param html the panel's HTML
     */
    public SpanPanel( @Nullable String html )
    {
        this();
        /*
        * Normally would call this("div", html), but that method
        * has some slightly expensive IE defensiveness that we just
        * don't need for a div
        */
        getElement().setInnerHTML( html );
    }

    /**
     * Initializes the panel's HTML from a given {@link SafeHtml} object.
     *
     * @param safeHtml the html to set.
     */
    public SpanPanel( @NotNull SafeHtml safeHtml )
    {
        this( safeHtml.asString() );
    }

    /**
     * Adds a child element to the panel.
     *
     * @param elem the element to add
     */
    public void add( @Nullable com.google.gwt.dom.client.Element elem )
    {
        if ( elem != null )
        {
            getElement().appendChild( elem );
        }
    }

    /**
     * Adds a child widget to the panel.
     *
     * @param widget the widget to be added
     */
    @Override
    public void add( @Nullable Widget widget )
    {
        if ( widget != null )
        {
            add( widget, getElement() );
        }
    }
}