/**
* This jQuery plugin displays pagination links inside the selected elements.
*
* @author Gabriel Birke (birke *at* d-scribe *dot* de)
* @version 1.2
* @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: "#",
first_text: "First",
prev_text: "Prev",
next_text: "Next",
last_text: "Last",
jump_text: "Jump",
language: "cn",
isSum: true,
isJump: true,
jump_format_text: "The number format error",
jump_outofrange_text: "The number is out of range",
jump_null_text: "The number is not allow null",
//ellipse_text: "...",
ellipse_text: "",
first_show_always: true,
prev_show_always: true,
next_show_always: true,
last_show_always: true,
callback: function () { return true; }
}, 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;
}
}
return continuePropagation;
}
/**
* This function inserts the pagination links into the container element
*/
function drawLinks() {
panel.empty();
var interval = getInterval();
var np = numPages();
// This helper function returns a handler function that calls pageSelected with the right page_id
var getClickHandler = function (page_id) {
return function (evt) { return pageSelected(page_id, evt); }
}
// Helper function for generating a single link (or a span tag if it's the current page)
var appendItem = function (page_id, appendopts) {
page_id = page_id < 0 ? 0 : (page_id < np ? page_id : np - 1); // Normalize page id to sane value
appendopts = jQuery.extend({ text: page_id + 1, classes: "" }, appendopts || {});
if (page_id == current_page) {
if (!isNaN(appendopts.text)) {
var lnk = jQuery("" + (appendopts.text) + "");
}
else {
var lnk = jQuery("" + (appendopts.text) + "");
}
}
else {
// var lnk = jQuery("" + (appendopts.text) + "")
// .bind("click", getClickHandler(page_id))
// .attr('href', opts.link_to.replace(/__id__/, page_id));
var lnk = jQuery("" + (appendopts.text) + "")
.bind("click", getClickHandler(page_id))
.attr('href', "javascript:void(0)");
}
//alert(page_id);
if (appendopts.classes) { lnk.addClass(appendopts.classes); }
panel.find("[id='pagerrigt']").append(lnk);
}
// sum total
if (opts.isSum) {
if (opts.language == "en") {
panel.append("