package org.ovirt.engine.ui.common.widget.table.header;

import org.ovirt.engine.ui.common.CommonApplicationConstants;
import org.ovirt.engine.ui.common.CommonApplicationTemplates;
import org.ovirt.engine.ui.common.gin.AssetProvider;
import com.google.gwt.resources.client.ImageResource;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
import com.google.gwt.user.client.ui.AbstractImagePrototype;

/**
 * Header for rendering {@link ImageResource}s. Supports tooltips.
 */
public class ImageResourceHeader extends SafeHtmlHeader {

    private static final CommonApplicationTemplates templates = AssetProvider.getTemplates();
    private static final CommonApplicationConstants constants = AssetProvider.getConstants();

    private ImageResource headerImage;
    private boolean inline = false;

    public ImageResourceHeader(ImageResource image, SafeHtml tooltipText) {
        super(SafeHtmlUtils.fromSafeConstant(""), tooltipText); //$NON-NLS-1$
        if (image != null) {
            this.headerImage = image;
            setValue(getHeaderHtml());
        }
    }

    public ImageResourceHeader(ImageResource image, SafeHtml tooltipText, boolean inline) {
        this(image, tooltipText);
        setInline(inline);
    }

    public ImageResourceHeader(ImageResource image) {
        super(SafeHtmlUtils.fromSafeConstant("")); //$NON-NLS-1$
    }

    protected SafeHtml getHeaderHtml() {
        if (headerImage == null) {
            return SafeHtmlUtils.fromSafeConstant(constants.empty());
        }

        if (isInline()) {
            return templates.tableHeaderInlineImage(SafeHtmlUtils.fromTrustedString(
                    AbstractImagePrototype.create(headerImage).getHTML()));
        }
        else {
            return templates.tableHeaderImage(SafeHtmlUtils.fromTrustedString(
                    AbstractImagePrototype.create(headerImage).getHTML()));
        }

    }

    protected ImageResource getHeaderImage() {
        return headerImage;
    }

    protected void setHeaderImage(ImageResource headerImage) {
        this.headerImage = headerImage;
    }

    public boolean isInline() {
        return inline;
    }

    public void setInline(boolean inline) {
        this.inline = inline;
    }

}