/**

* simplePagination.js v1.4

* A simple jQuery pagination plugin.

* http://flaviusmatis.github.com/simplePagination.js/

*

* Copyright 2012, Flavius Matis

* Released under the MIT license.

* http://flaviusmatis.github.com/license.html

*/

​

(function($){

​

    var methods = {

        init: function(options) {

            var o = $.extend({

                items: 1,

                itemsOnPage: 1,

                pages: 0,

                displayedPages: 5,

                edges: 2,

                currentPage: 1,

                hrefTextPrefix: '#page-',

                hrefTextSuffix: '',

                prevText: 'Prev',

                nextText: 'Next',

                ellipseText: '…',

                cssStyle: 'light-theme',

                selectOnClick: true,

                onPageClick: function(pageNumber) {

                    // Callback triggered when a page is clicked

                    // Page number is given as an optional parameter

                },

                onInit: function() {

                    // Callback triggered immediately after initialization

                }

            }, options || {});

​

            var self = this;

​

            o.pages = o.pages ? o.pages : Math.ceil(o.items / o.itemsOnPage) ? Math.ceil(o.items / o.itemsOnPage) : 1;

            o.currentPage = o.currentPage - 1;

            o.halfDisplayed = o.displayedPages / 2;

​

            this.each(function() {

                self.addClass(o.cssStyle).data('pagination', o);

                methods._draw.call(self);

            });

​

            o.onInit();

​

            return this;

        },

​

        selectPage: function(page) {

            methods._selectPage.call(this, page - 1);

            return this;

        },

​

        prevPage: function() {

            var o = this.data('pagination');

            if (o.currentPage > 0) {

                methods._selectPage.call(this, o.currentPage - 1);

            }

            return this;

        },

​

        nextPage: function() {

            var o = this.data('pagination');

            if (o.currentPage < o.pages - 1) {

                methods._selectPage.call(this, o.currentPage + 1);

            }

            return this;

        },

​

        destroy: function(){

            this.empty();

            return this;

        },

​

        redraw: function(){

            methods._draw.call(this);

            return this;

        },

​

        disable: function(){

            var o = this.data('pagination');

            o.disabled = true;

            this.data('pagination', o);

            methods._draw.call(this);

            return this;

        },

​

        enable: function(){

            var o = this.data('pagination');

            o.disabled = false;

            this.data('pagination', o);

            methods._draw.call(this);

            return this;

        },

​

        _draw: function() {

            var $panel = this,

                o = $panel.data('pagination'),

                interval = methods._getInterval(o),

                i;

​

            methods.destroy.call(this);

​

            // Generate Prev link

            if (o.prevText) {

                methods._appendItem.call(this, o.currentPage - 1, {text: o.prevText, classes: 'prev'});

            }

​

            // Generate start edges

            if (interval.start > 0 && o.edges > 0) {

                var end = Math.min(o.edges, interval.start);

                for (i = 0; i < end; i++) {

                    methods._appendItem.call(this, i);

                }

                if (o.edges < interval.start && (interval.start - o.edges != 1)) {

                    $panel.append('<span class="ellipse">' + o.ellipseText + '</span>');

                } else if (interval.start - o.edges == 1) {

                    methods._appendItem.call(this, o.edges);

                }

            }

​

            // Generate interval links

            for (i = interval.start; i < interval.end; i++) {

                methods._appendItem.call(this, i);

            }

​

            // Generate end edges

            if (interval.end < o.pages && o.edges > 0) {

                if (o.pages - o.edges > interval.end && (o.pages - o.edges - interval.end != 1)) {

                    $panel.append('<span class="ellipse">' + o.ellipseText + '</span>');

                } else if (o.pages - o.edges - interval.end == 1) {

                    methods._appendItem.call(this, interval.end++);

                }

                var begin = Math.max(o.pages - o.edges, interval.end);

                for (i = begin; i < o.pages; i++) {

                    methods._appendItem.call(this, i);

                }

            }

​

            // Generate Next link

            if (o.nextText) {

                methods._appendItem.call(this, o.currentPage + 1, {text: o.nextText, classes: 'next'});

            }

        },

​

        _getInterval: function(o) {

            return {

                start: Math.ceil(o.currentPage > o.halfDisplayed ? Math.max(Math.min(o.currentPage - o.halfDisplayed, (o.pages - o.displayedPages)), 0) : 0),

                end: Math.ceil(o.currentPage > o.halfDisplayed ? Math.min(o.currentPage + o.halfDisplayed, o.pages) : Math.min(o.displayedPages, o.pages))

            };

        },

​

        _appendItem: function(pageIndex, opts) {

            var self = this, options, $link, o = self.data('pagination');

​

            pageIndex = pageIndex < 0 ? 0 : (pageIndex < o.pages ? pageIndex : o.pages - 1);

​

            options = $.extend({

                text: pageIndex + 1,

                classes: ''

            }, opts || {});

​

            if (pageIndex == o.currentPage || o.disabled) {

                $link = $('<span class="current">' + (options.text) + '</span>');

            } else {

                $link = $('<a href="' + o.hrefTextPrefix + (pageIndex + 1) + o.hrefTextSuffix + '" class="page-link">' + (options.text) + '</a>');

                $link.click(function(){

                    return methods._selectPage.call(self, pageIndex);

                });

            }

​

            if (options.classes) {

                $link.addClass(options.classes);

            }

​

            self.append($link);

        },

​

        _selectPage: function(pageIndex) {

            var o = this.data('pagination');

            o.currentPage = pageIndex;

            if (o.selectOnClick) {

                methods._draw.call(this);

            }

            return o.onPageClick(pageIndex + 1);

        }

​

    };

​

    $.fn.pagination = function(method) {

​

        // Method calling logic

        if (methods[method] && method.charAt(0) != '_') {

            return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));

        } else if (typeof method === 'object' || !method) {

            return methods.init.apply(this, arguments);

        } else {

            $.error('Method ' +  method + ' does not exist on jQuery.pagination');

        }

​

    };

​

})(jQuery);

​