SuLei.Web/admin/scripts/jquery/jquery.pagination.js

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/**
 * This jQuery plugin displays pagination links inside the selected elements.
 *
 * @author Gabriel Birke (birke *at* d-scribe *dot* de)
 * @version 1.1
 * @param {int} maxentries Number of entries to paginate
 * @param {Object} opts Several options (see README for documentation)
 * @return {Object} jQuery Object
 */
jQuery.fn.pagination = function(maxentries, opts) {
    opts = jQuery.extend({
        items_per_page: 10,
        num_display_entries: 10,
        current_page: 0,
        num_edge_entries: 0,
        link_to: "#",
        prev_text: "Prev",
        next_text: "Next",
        ellipse_text: "...",
        prev_show_always: true,
        next_show_always: true,
        callback: function() { return false; }
    }, opts || {});

    return this.each(function() {
        /**
        * Calculate the maximum number of pages
        */
        function numPages() {
            return Math.ceil(maxentries / opts.items_per_page);
        }

        /**
        * Calculate start and end point of pagination links depending on 
        * current_page and num_display_entries.
        * @return {Array}
        */
        function getInterval() {
            var ne_half = Math.ceil(opts.num_display_entries / 2);
            var np = numPages();
            var upper_limit = np - opts.num_display_entries;
            var start = current_page > ne_half ? Math.max(Math.min(current_page - ne_half, upper_limit), 0) : 0;
            var end = current_page > ne_half ? Math.min(current_page + ne_half, np) : Math.min(opts.num_display_entries, np);
            return [start, end];
        }

        /**
        * This is the event handling function for the pagination links. 
        * @param {int} page_id The new page number
        */
        function pageSelected(page_id, evt) {
            current_page = page_id;
            drawLinks();
            var continuePropagation = opts.callback(page_id, panel);
            if (!continuePropagation) {
                if (evt.stopPropagation) {
                    evt.stopPropagation();
                }
                else {
                    evt.cancelBubble = true;