// This Source Code is in the Public Domain per: http://unlicense.org
package org.litesoft.GWT.client.widgets;

import org.litesoft.GWT.client.widgets.nonpublic.*;
import org.litesoft.uispecification.*;

import com.google.gwt.user.client.*;

public class StyleSet {
    public Element getOuterElement() {
        return mOuterElement;
    }

    public Element getInnerElement() {
        return mInnerElement;
    }

    public StyleSet style( String pStyleClassname ) {
        CommonElementHelper.setStyleClass( getOuterElement(), pStyleClassname );
        return this;
    }

    public static StyleSet createDiv() {
        return new StyleSet( div() );
    }

    public static StyleSet createDivDiv() {
        return create( div(), div() );
    }

    public static StyleSet createFieldSet() {
        return new StyleSet( fs() );
    }

    public static StyleSet createFieldSet( String pLegendTitle ) {
        return createFieldSet( pLegendTitle, null );
    }

    public static StyleSet createFieldSet( String pLegendTitle, UiFont pTitleFont ) {
        return new StyleSet( fs( pLegendTitle, pTitleFont ) );
    }

    public static StyleSet create( Element... pElements ) {
        if ( pElements != null ) {
            for ( int i = 0; i < pElements.length; i++ ) {
                Element zFirst = pElements[i];
                if ( zFirst != null ) {
                    int zNestedStyleAppend = 1;
                    Element zLast = zFirst;
                    while ( ++i < pElements.length ) {
                        Element zElement = pElements[i];
                        if ( zElement != null ) {
                            zLast = CommonElementHelper.appendToParent( zElement, zLast );
                            CommonElementHelper.setStyleClass( zLast, "NestedStyle" + zNestedStyleAppend++ );
                        }
                    }
                    return new StyleSet( zFirst, zLast );
                }
            }
        }
        return null;
    }

    public static Element div() {
        return DOM.createDiv();
    }

    public static Element fs() {
        return DOM.createFieldSet();
    }

    public static Element fs( String pLegendTitle ) {
        return fs( pLegendTitle, null );
    }

    public static Element fs( String pLegendTitle, UiFont pTitleFont ) {
        Element zFieldSet = fs();
        Element zLegend = DOM.createLegend();
        DOM.appendChild( zFieldSet, zLegend );
        DOM.setInnerText( zLegend, pLegendTitle );
        ApplyFont.to( pTitleFont, zLegend );
        return zFieldSet;
    }

    private StyleSet( Element pOuterElement, Element pInnerElement ) {
        mOuterElement = pOuterElement;
        mInnerElement = pInnerElement;
    }

    private StyleSet( Element pElement ) {
        this( pElement, pElement );
    }

    private Element mOuterElement;
    private Element mInnerElement;
}