gistfile1.txt

package com.roler.res.client.application.widget;

import com.google.gwt.user.client.ui.HasOneWidget;
import com.google.gwt.user.client.ui.IsWidget;
import com.google.gwt.user.client.ui.Widget;

import static com.google.gwt.query.client.GQuery.$;

/**
 * Simple panel that wraps a GWT simple panel to be replaced by the widget we set while updating the references.
 *
 * It is not recommended to apply any type to this container as it is meant to be replaced by it's content in the dom.
 *
 * The result of this will be to have a better, cleaner, dom.
 */
public class ReplacePanel implements IsWidget, HasOneWidget {
    private IsWidget widget;

    public ReplacePanel() {
        this.widget = new com.google.gwt.user.client.ui.SimplePanel();
    }

    @Override
    public Widget asWidget() {
        return widget.asWidget();
    }

    @Override
    public Widget getWidget() {
        return widget.asWidget();
    }

    @Override
    public void setWidget(Widget widget) {
        $(this.widget).replaceWith($(widget));

        this.widget = widget;
    }

    @Override
    public void setWidget(IsWidget widget) {
        setWidget(widget.asWidget());
    }
}