package com.temp.client.foundation.widget;

import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.PushButton;

public class NamedImageButton extends CompositeButton {
    public static final String UP = "Up";
    public static final String HOVER = "Hover";
    public static final String PRESSED = "Pressed";

    public NamedImageButton() {
    }

    public NamedImageButton(String name) {
        this();
        setName(name);
    }

    public NamedImageButton(String name, ClickHandler handler) {
        this(name);
        add(handler);
    }

    @Override
    public void setName(String name) {
        super.setName(name);
        setImage(UP, proxyTo.getUpFace());
        setImage(HOVER, proxyTo.getUpHoveringFace());
        setImage(PRESSED, proxyTo.getDownFace(), proxyTo.getDownHoveringFace(), proxyTo.getUpDisabledFace(), proxyTo.getDownDisabledFace());
    }

    public NamedImageButton add(ClickHandler handler) {
        if (handler != null) {
            proxyTo.addClickHandler(handler);
        }
        return this;
    }

    public NamedImageButton style(String className) {
        addStyleName(className);
        return this;
    }

    private void setImage(String imageFaceName, PushButton.Face... faces) {
        String url = getImageUrl(getName(), imageFaceName);
        for (PushButton.Face face : faces) {
            face.setImage(new Image(url));
        }
    }

    private static String getImageUrl(String name, String imageFaceName) {
        return "images/buttons/" + name + "/" + imageFaceName + ".png";
    }

    public static String createSafeHtmlElement(String name, String safeHtmlAltToolTip) {
        return createSafeHtmlElementWithIdAndStyle(null, name, UP, safeHtmlAltToolTip, null);
    }

    public static String createSafeHtmlElementWithId(String id, String name, String safeHtmlAltToolTip) {
        return createSafeHtmlElementWithIdAndStyle(id, name, UP, safeHtmlAltToolTip, null);
    }

    public static String createSafeHtmlElement(String name, String safeHtmlAltToolTip, String styleName) {
        return createSafeHtmlElementWithIdAndStyle(null, name, UP, safeHtmlAltToolTip, styleName);
    }

    public static String createSafeHtmlElementWithId(String id, String name, String safeHtmlAltToolTip, String styleName) {
        return createSafeHtmlElementWithIdAndStyle(id, name, UP, safeHtmlAltToolTip, styleName);
    }

    private static String createSafeHtmlElementWithIdAndStyle(String id, String name, String imageFaceName, String safeHtmlAltToolTip, String styleName) {
        return createSafeHtmlElementWithImageUrl(id, name, safeHtmlAltToolTip, styleName, getImageUrl(name, imageFaceName));
    }

}