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/*
 * Copyright 2004 original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jmesa.view.html.toolbar;

import org.jmesa.core.CoreContext;
import org.jmesa.limit.Limit;
import org.jmesa.view.html.HtmlUtils;

/**
 * @since 2.0
 * @author Jeff Johnston
 */
public class NextPageToolbarItem extends AbstractImageToolbarItem {

    public NextPageToolbarItem(CoreContext coreContext) {

        super(coreContext);
    }

    @Override
    public String render() {

        Limit limit = getCoreContext().getLimit();
        int page = limit.getRowSelect().getPage();

        StringBuilder action = new StringBuilder("javascript:");
        action.append("jQuery.jmesa.setPage('" + limit.getId() + "','" + (page + 1) + "');" + getOnInvokeActionJavaScript());

        int totalPages = HtmlUtils.totalPages(getCoreContext());
        if (!HtmlUtils.isNextPageEnabled(page, totalPages)) {
            return disabled();
        }

        return enabled(action.toString());
    }
}