VPickerIcon.java

package org.vaadin.smartgwt.client.ui.form.fields;

import com.vaadin.terminal.gwt.client.ApplicationConnection;
import com.vaadin.terminal.gwt.client.UIDL;

public class VPickerIcon extends VFormItemIcon {
	private static String IMG_TYPE = getImgType();

	// @formatter:off
    private static native String getImgType() /*-{
        var imgType = $wnd.isc.pickerImgType;
        return imgType == null || imgType === undefined ? "png" : imgType;
    }-*/;
	// @formatter:on

	@Override
	protected void postAttributeUpdateFromUIDL(UIDL uidl, ApplicationConnection client) {
		super.postAttributeUpdateFromUIDL(uidl, client);

		if (uidl.hasAttribute("src") && uidl.getStringAttribute("src") != null) {
			final String src = uidl.getStringAttribute("src").substring(1);
			if (src.endsWith("$IMG_TYPE")) {
				getJSObject().setSrc(src.replace("$IMG_TYPE", IMG_TYPE));
			}
		}
	}
}