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

import org.litesoft.commonfoundation.typeutils.*;

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

public abstract class AbstractGwtElementDimensionHelper implements GwtElementDimensionHelper {
    private String mWhat;
    private String mStyleDimensionAttribute;
    private String mOffsetDimensionAttribute;

    protected AbstractGwtElementDimensionHelper( String pWhat, String pStyleDimensionAttribute, String pOffsetDimensionAttribute ) {
        mWhat = pWhat;
        mStyleDimensionAttribute = pStyleDimensionAttribute;
        mOffsetDimensionAttribute = pOffsetDimensionAttribute;
    }

    @Override
    public final String getWhat() {
        return mWhat;
    }

    @Override
    public final boolean setStyleDimension( Element pElement, int pDimension ) {
        Objects.assertNotNull( "Element", pElement );
        if ( pDimension > 0 ) {
            DOM.setIntStyleAttribute( pElement, mStyleDimensionAttribute, pDimension );
            return true;
        }
        return false;
    }

    @Override
    public final void removeStyleDimension( Element pElement ) {
        Objects.assertNotNull( "Element", pElement );
        DOM.setStyleAttribute( pElement, mStyleDimensionAttribute, "" );
    }

    @Override
    public final int getOffsetDimension( Element pElement ) {
        Objects.assertNotNull( "Element", pElement );
        return DOM.getElementPropertyInt( pElement, mOffsetDimensionAttribute );
    }
}