ButtonTemplate.java

import java.util.List;
import java.util.Map;
import org.primefaces.util.HTML;
import java.util.logging.Logger;
import org.primefaces.util.ComponentUtils;
        
    private final static Logger logger = Logger.getLogger(Button.class.getName());
                
    public String resolveIcon() {
        String icon = getIcon();
    
        if(icon == null) {
            icon = getImage();
            
            if(icon != null)
                logger.info("image attribute is deprecated to define an icon, use icon attribute instead.");
        }
    
        return icon;
    }
    
    public String resolveStyleClass() {
        String icon = resolveIcon();
        Object value = getValue();
        String styleClass = ""; 
    
        if(value != null && icon == null) {
            styleClass = HTML.BUTTON_TEXT_ONLY_BUTTON_CLASS;
        }
        else if(value != null && icon != null) {
            styleClass = getIconPos().equals("left") ? HTML.BUTTON_TEXT_ICON_LEFT_BUTTON_CLASS : HTML.BUTTON_TEXT_ICON_RIGHT_BUTTON_CLASS;
        }
        else if(value == null && icon != null) {
            styleClass = HTML.BUTTON_ICON_ONLY_BUTTON_CLASS;
        }
    
        if(isDisabled()) {
            styleClass = styleClass + " ui-state-disabled";
        } 
    
        String userStyleClass = getStyleClass();
        if(userStyleClass != null) {
            styleClass = styleClass + " " + userStyleClass;
        }
    
        return styleClass;
    }
    
    public Map<String, List<String>> getParams() {
        return ComponentUtils.getUIParams(this);
    }