org.devgateway.eudevfin.ui.common.components.PagingAjaxLink.java Source code

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Here is the source code for org.devgateway.eudevfin.ui.common.components.PagingAjaxLink.java

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/*******************************************************************************
 * Copyright (c) 2014 Development Gateway.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 *******************************************************************************/
/**
 * 
 */
package org.devgateway.eudevfin.ui.common.components;

import java.util.List;

import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.markup.html.AjaxLink;
import org.apache.wicket.behavior.AttributeAppender;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.model.IModel;
import org.devgateway.eudevfin.common.service.PagingItem;

/**
 * @author Alex
 *
 */
public class PagingAjaxLink extends AjaxLink<PagingItem> {

    private TableListPanel<?> tableListPanel;
    private List<PagingItem> pagingItems;

    public PagingAjaxLink(String id, IModel<PagingItem> model, TableListPanel<?> tableListPanel,
            List<PagingItem> pagingItems) {
        super(id, model);
        this.tableListPanel = tableListPanel;
        this.pagingItems = pagingItems;
        this.setAfterDisabledLink("");
        this.setBeforeDisabledLink("");
        PagingItem pagingItem = model.getObject();
        Label label = new Label("page-number-label", pagingItem.getLabel());
        this.add(label);
        if (pagingItem.isDisabled()) {
            this.setEnabled(false);
        }
    }

    private static final long serialVersionUID = 1L;

    @Override
    public void onClick(AjaxRequestTarget target) {
        int futurePageNo = -1;
        PagingItem pagingItem = this.getModelObject();
        if ("<".equals(pagingItem.getLabel())) {
            futurePageNo = pagingItem.getCurrentPageNo() - 1;
        } else if (">".equals(pagingItem.getLabel())) {
            futurePageNo = pagingItem.getCurrentPageNo() + 1;
        } else
            futurePageNo = Integer.parseInt(pagingItem.getLabel());

        if (futurePageNo < 1 || futurePageNo > this.pagingItems.size())
            return;

        this.tableListPanel.generateListOfItems(futurePageNo);
        target.add(this.tableListPanel);
    }

}