✏️ Editing: pagination.min.js Writable

/*
 * pagination.js 2.1.5
 * A jQuery plugin to provide simple yet fully customisable pagination.
 * https://github.com/superRaytin/paginationjs
 *
 * Homepage: http://pagination.js.org
 *
 * Copyright 2014-2100, superRaytin
 * Released under the MIT license.
 */

(function(global, $) {

if (typeof $ === 'undefined') {
      throwError('Pagination requires jQuery.');
    }

var pluginName = 'pagination';

var pluginHookMethod = 'addHook';

var eventPrefix = '__pagination-';
    var isFunction = function(func){
      return typeof func === "function";
    }
    var isNumeric = function( obj ) {
			// As of jQuery 3.0, isNumeric is limited to
			// strings and numbers (primitives or objects)
			// that can be coerced to finite numbers (gh-2662)
			var type = typeof obj;
			return ( type === "number" || type === "string" ) &&

// parseFloat NaNs numeric-cast false positives ("")
				// ...but misinterprets leading-number strings, e.g. hex literals ("0x...")
				// subtraction forces infinities to NaN
				!isNaN( obj - parseFloat( obj ) );
		};

// Conflict, use backup
    if ($.fn.pagination) {
      pluginName = 'pagination2';
    }

$.fn[pluginName] = function(options) {

if (typeof options === 'undefined') {
        return this;
      }

var container = $(this);

var attributes = $.extend({}, $.fn[pluginName].defaults, options);

var pagination = {

initialize: function() {
          var self = this;

// Cache attributes of current instance
          if (!container.data('pagination')) {
            container.data('pagination', {});
          }

if (self.callHook('beforeInit') === false) return;

// Pagination has been initialized, destroy it
          if (container.data('pagination').initialized) {
            $('.paginationjs', container).remove();
          }

// Whether to disable Pagination at the initialization
          self.disabled = !!attributes.disabled;

// Model will be passed to the callback function
          var model = self.model = {
            pageRange: attributes.pageRange,
            pageSize: attributes.pageSize
          };

// dataSource`s type is unknown, parse it to find true data
          self.parseDataSource(attributes.dataSource, function(dataSource) {

// Currently in asynchronous mode
            self.isAsync = Helpers.isString(dataSource);
            if (Helpers.isArray(dataSource)) {
              model.totalNumber = attributes.totalNumber = dataSource.length;
            }

// Currently in asynchronous mode and a totalNumberLocator is specified
            self.isDynamicTotalNumber = self.isAsync && attributes.totalNumberLocator;

var el = self.render(true);

// Add extra className to the pagination element
              if (attributes.className) {
              el.addClass(attributes.className);
            }

model.el = el;

// Append/prepend pagination element to the container
            container[attributes.position === 'bottom' ? 'append' : 'prepend'](el);

// Bind events
            self.observer();

// Pagination is currently initialized
            container.data('pagination').initialized = true;

// Will be invoked after initialized
            self.callHook('afterInit', el);
          });
        },

render: function(isBoot) {
          var self = this;
          var model = self.model;
          var el = model.el || $('<div class="paginationjs"></div>');
          var isForced = isBoot !== true;

self.callHook('beforeRender', isForced);

var currentPage = model.pageNumber || attributes.pageNumber;
          var pageRange = attributes.pageRange || 0;
          var totalPage = self.getTotalPage();

var rangeStart = currentPage - pageRange;
          var rangeEnd = currentPage + pageRange;

if (rangeEnd > totalPage) {
            rangeEnd = totalPage;
            rangeStart = totalPage - pageRange * 2;
            rangeStart = rangeStart < 1 ? 1 : rangeStart;
          }

if (rangeStart <= 1) {
            rangeStart = 1;
            rangeEnd = Math.min(pageRange * 2 + 1, totalPage);
          }

el.html(self.generateHTML({
            currentPage: currentPage,
            pageRange: pageRange,
            rangeStart: rangeStart,
            rangeEnd: rangeEnd
          }));

// There is only one page
          if (attributes.hideWhenLessThanOnePage) {
            el[totalPage <= 1 ? 'hide' : 'show']();
          }

self.callHook('afterRender', isForced);

return el;
        },

// Generate HTML of the pages
        generatePageNumbersHTML: function(args) {
          var self = this;
          var currentPage = args.currentPage;
          var totalPage = self.getTotalPage();
          var rangeStart = args.rangeStart;
          var rangeEnd = args.rangeEnd;
          var html = '';
          var i;

var pageLink = attributes.pageLink;
          var ellipsisText = attributes.ellipsisText;

var classPrefix = attributes.classPrefix;
          var activeClassName = attributes.activeClassName;
          var disableClassName = attributes.disableClassName;

// Disable page range, display all the pages
          if (attributes.pageRange === null) {
            for (i = 1; i <= totalPage; i++) {
              if (i == currentPage) {
                html += '<li class="' + classPrefix + '-page J-paginationjs-page ' + activeClassName + '" data-num="' + i + '"><a>' + i + '<\/a><\/li>';
              } else {
                html += '<li class="' + classPrefix + '-page J-paginationjs-page" data-num="' + i + '"><a href="' + pageLink + '">' + i + '<\/a><\/li>';
              }
            }
            return html;
          }

if (rangeStart <= 3) {
            for (i = 1; i < rangeStart; i++) {
              if (i == currentPage) {
                html += '<li class="' + classPrefix + '-page J-paginationjs-page ' + activeClassName + '" data-num="' + i + '"><a>' + i + '<\/a><\/li>';
              } else {
                html += '<li class="' + classPrefix + '-page J-paginationjs-page" data-num="' + i + '"><a href="' + pageLink + '">' + i + '<\/a><\/li>';
              }
            }
          } else {
            if (attributes.showFirstOnEllipsisShow) {
              html += '<li class="' + classPrefix + '-page ' + classPrefix + '-first J-paginationjs-page" data-num="1"><a href="' + pageLink + '">1<\/a><\/li>';
            }
            html += '<li class="' + classPrefix + '-ellipsis ' + disableClassName + '"><a>' + ellipsisText + '<\/a><\/li>';
          }

for (i = rangeStart; i <= rangeEnd; i++) {
            if (i == currentPage) {
              html += '<li class="' + classPrefix + '-page J-paginationjs-page ' + activeClassName + '" data-num="' + i + '"><a>' + i + '<\/a><\/li>';
            } else {
              html += '<li class="' + classPrefix + '-page J-paginationjs-page" data-num="' + i + '"><a href="' + pageLink + '">' + i + '<\/a><\/li>';
            }
          }

if (rangeEnd >= totalPage - 2) {
            for (i = rangeEnd + 1; i <= totalPage; i++) {
              html += '<li class="' + classPrefix + '-page J-paginationjs-page" data-num="' + i + '"><a href="' + pageLink + '">' + i + '<\/a><\/li>';
            }
          } else {
            html += '<li class="' + classPrefix + '-ellipsis ' + disableClassName + '"><a>' + ellipsisText + '<\/a><\/li>';

if (attributes.showLastOnEllipsisShow) {
              html += '<li class="' + classPrefix + '-page ' + classPrefix + '-last J-paginationjs-page" data-num="' + totalPage + '"><a href="' + pageLink + '">' + totalPage + '<\/a><\/li>';
            }
          }

return html;
        },

// Generate HTML content from the template
        generateHTML: function(args) {
          var self = this;
          var currentPage = args.currentPage;
          var totalPage = self.getTotalPage();

var totalNumber = self.getTotalNumber();

var showPrevious = attributes.showPrevious;
          var showNext = attributes.showNext;
          var showPageNumbers = attributes.showPageNumbers;
          var showNavigator = attributes.showNavigator;
          var showGoInput = attributes.showGoInput;
          var showGoButton = attributes.showGoButton;

var pageLink = attributes.pageLink;
          var prevText = attributes.prevText;
          var nextText = attributes.nextText;
          var goButtonText = attributes.goButtonText;

var classPrefix = attributes.classPrefix;
          var disableClassName = attributes.disableClassName;
          var ulClassName = attributes.ulClassName;

var html = '';
          var goInput = '<input type="text" class="J-paginationjs-go-pagenumber">';
          var goButton = '<input type="button" class="J-paginationjs-go-button" value="' + goButtonText + '">';
          var formattedString;

var formatNavigator = isFunction(attributes.formatNavigator) ? attributes.formatNavigator(currentPage, totalPage, totalNumber) : attributes.formatNavigator;
          var formatGoInput = isFunction(attributes.formatGoInput) ? attributes.formatGoInput(goInput, currentPage, totalPage, totalNumber) : attributes.formatGoInput;
          var formatGoButton = isFunction(attributes.formatGoButton) ? attributes.formatGoButton(goButton, currentPage, totalPage, totalNumber) : attributes.formatGoButton;

var autoHidePrevious = isFunction(attributes.autoHidePrevious) ? attributes.autoHidePrevious() : attributes.autoHidePrevious;
          var autoHideNext = isFunction(attributes.autoHideNext) ? attributes.autoHideNext() : attributes.autoHideNext;

var header = isFunction(attributes.header) ? attributes.header(currentPage, totalPage, totalNumber) : attributes.header;
          var footer = isFunction(attributes.footer) ? attributes.footer(currentPage, totalPage, totalNumber) : attributes.footer;

// Whether to display header
          if (header) {
            formattedString = self.replaceVariables(header, {
              currentPage: currentPage,
              totalPage: totalPage,
              totalNumber: totalNumber
            });
            html += formattedString;
          }

if (showPrevious || showPageNumbers || showNext) {
            html += '<div class="paginationjs-pages">';

if (ulClassName) {
              html += '<ul class="' + ulClassName + '">';
            } else {
              html += '<ul>';
            }

// Whether to display the Previous button
            if (showPrevious) {
              if (currentPage <= 1) {
                if (!autoHidePrevious) {
                  html += '<li class="' + classPrefix + '-prev ' + disableClassName + '"><a>' + prevText + '<\/a><\/li>';
                }
              } else {
                html += '<li class="' + classPrefix + '-prev J-paginationjs-previous" data-num="' + (currentPage - 1) + '" title="Previous page"><a href="' + pageLink + '">' + prevText + '<\/a><\/li>';
              }
            }

// Whether to display the pages
            if (showPageNumbers) {
              html += self.generatePageNumbersHTML(args);
            }

// Whether to display the Next button
            if (showNext) {
              if (currentPage >= totalPage) {
                if (!autoHideNext) {
                  html += '<li class="' + classPrefix + '-next ' + disableClassName + '"><a>' + nextText + '<\/a><\/li>';
                }
              } else {
                html += '<li class="' + classPrefix + '-next J-paginationjs-next" data-num="' + (currentPage + 1) + '" title="Next page"><a href="' + pageLink + '">' + nextText + '<\/a><\/li>';
              }
            }
            html += '<\/ul><\/div>';
          }

// Whether to display the navigator
          if (showNavigator) {
            if (formatNavigator) {
              formattedString = self.replaceVariables(formatNavigator, {
                currentPage: currentPage,
                totalPage: totalPage,
                totalNumber: totalNumber
              });
              html += '<div class="' + classPrefix + '-nav J-paginationjs-nav">' + formattedString + '<\/div>';
            }
          }

// Whether to display the Go input
          if (showGoInput) {
            if (formatGoInput) {
              formattedString = self.replaceVariables(formatGoInput, {
                currentPage: currentPage,
                totalPage: totalPage,
                totalNumber: totalNumber,
                input: goInput
              });
              html += '<div class="' + classPrefix + '-go-input">' + formattedString + '</div>';
            }
          }

// Whether to display the Go button
          if (showGoButton) {
            if (formatGoButton) {
              formattedString = self.replaceVariables(formatGoButton, {
                currentPage: currentPage,
                totalPage: totalPage,
                totalNumber: totalNumber,
                button: goButton
              });
              html += '<div class="' + classPrefix + '-go-button">' + formattedString + '</div>';
            }
          }

// Whether to display footer
          if (footer) {
            formattedString = self.replaceVariables(footer, {
              currentPage: currentPage,
              totalPage: totalPage,
              totalNumber: totalNumber
            });
            html += formattedString;
          }

return html;
        },

// Find totalNumber from the remote response
        // Only available in asynchronous mode
        findTotalNumberFromRemoteResponse: function(response) {
          var self = this;
          self.model.totalNumber = attributes.totalNumberLocator(response);
        },

// Go to the specified page
        go: function(number, callback) {
          var self = this;
          var model = self.model;

if (self.disabled) return;

var pageNumber = number;
          pageNumber = parseInt(pageNumber);

// Page number is out of bounds
          if (!pageNumber || pageNumber < 1) return;

var pageSize = attributes.pageSize;
          var totalNumber = self.getTotalNumber();
          var totalPage = self.getTotalPage();

// Page number is out of bounds
          if (totalNumber > 0) {
            if (pageNumber > totalPage) return;
          }

// Pick data fragment in synchronous mode
          if (!self.isAsync) {
            render(self.getDataFragment(pageNumber));
            return;
          }

var postData = {};
          var alias = attributes.alias || {};
          postData[alias.pageSize ? alias.pageSize : 'pageSize'] = pageSize;
          postData[alias.pageNumber ? alias.pageNumber : 'pageNumber'] = pageNumber;

var ajaxParams = isFunction(attributes.ajax) ? attributes.ajax() : attributes.ajax;
          var formatAjaxParams = {
            type: 'get',
            cache: false,
            data: {},
            contentType: 'application/x-www-form-urlencoded; charset=UTF-8',
            dataType: 'json',
            async: true
          };

$.extend(true, formatAjaxParams, ajaxParams);
          $.extend(formatAjaxParams.data, postData);

formatAjaxParams.url = attributes.dataSource;
          formatAjaxParams.success = function(response) {
            if (self.isDynamicTotalNumber) {
              self.findTotalNumberFromRemoteResponse(response);
            } else {
              self.model.totalNumber = attributes.totalNumber;
            }

var finalData = self.filterDataByLocator(response);
            render(finalData);
          };
          formatAjaxParams.error = function(jqXHR, textStatus, errorThrown) {
            attributes.formatAjaxError && attributes.formatAjaxError(jqXHR, textStatus, errorThrown);
            self.enable();
          };

self.disable();

$.ajax(formatAjaxParams);

function render(data) {
            // Will be invoked before paging
            if (self.callHook('beforePaging', pageNumber) === false) return false;

// Pagination direction
            model.direction = typeof model.pageNumber === 'undefined' ? 0 : (pageNumber > model.pageNumber ? 1 : -1);

model.pageNumber = pageNumber;

self.render();

if (self.disabled && self.isAsync) {
              // enable pagination
              self.enable();
            }

// cache model data
            container.data('pagination').model = model;

// format result data before callback invoked
            if (attributes.formatResult) {
              var cloneData = $.extend(true, [], data);
              if (!Helpers.isArray(data = attributes.formatResult(cloneData))) {
                data = cloneData;
              }
            }

container.data('pagination').currentPageData = data;

// invoke callback
            self.doCallback(data, callback);

self.callHook('afterPaging', pageNumber);

// pageNumber now is the first page
            if (pageNumber == 1) {
              self.callHook('afterIsFirstPage');
            }

// pageNumber now is the last page
            if (pageNumber == self.getTotalPage()) {
              self.callHook('afterIsLastPage');
            }
          }
        },

doCallback: function(data, customCallback) {
          var self = this;
          var model = self.model;

if (isFunction(customCallback)) {
            customCallback(data, model);
          } else if (isFunction(attributes.callback)) {
            attributes.callback(data, model);
          }
        },

destroy: function() {
          // Before destroy
          if (this.callHook('beforeDestroy') === false) return;

this.model.el.remove();
          container.off();

// Remove style element
          $('#paginationjs-style').remove();

// After destroyed
          this.callHook('afterDestroy');
        },

previous: function(callback) {
          this.go(this.model.pageNumber - 1, callback);
        },

next: function(callback) {
          this.go(this.model.pageNumber + 1, callback);
        },

disable: function() {
          var self = this;
          var source = self.isAsync ? 'async' : 'sync';

// Before disabled
          if (self.callHook('beforeDisable', source) === false) return;

self.disabled = true;
          self.model.disabled = true;

// After disabled
          self.callHook('afterDisable', source);
        },

enable: function() {
          var self = this;
          var source = self.isAsync ? 'async' : 'sync';

// Before enabled
          if (self.callHook('beforeEnable', source) === false) return;

self.disabled = false;
          self.model.disabled = false;

// After enabled
          self.callHook('afterEnable', source);
        },

refresh: function(callback) {
          this.go(this.model.pageNumber, callback);
        },

show: function() {
          var self = this;

if (self.model.el.is(':visible')) return;

self.model.el.show();
        },

hide: function() {
          var self = this;

if (!self.model.el.is(':visible')) return;

self.model.el.hide();
        },

// Parse variables in the template
        replaceVariables: function(template, variables) {
          var formattedString;

for (var key in variables) {
            var value = variables[key];
            var regexp = new RegExp('<%=\\s*' + key + '\\s*%>', 'img');

formattedString = (formattedString || template).replace(regexp, value);
          }

return formattedString;
        },

// Get data fragment
        getDataFragment: function(number) {
          var pageSize = attributes.pageSize;
          var dataSource = attributes.dataSource;
          var totalNumber = this.getTotalNumber();

var start = pageSize * (number - 1) + 1;
          var end = Math.min(number * pageSize, totalNumber);

return dataSource.slice(start - 1, end);
        },

// Get total number
        getTotalNumber: function() {
          return this.model.totalNumber || attributes.totalNumber || 0;
        },

// Get total page
        getTotalPage: function() {
          return Math.ceil(this.getTotalNumber() / attributes.pageSize);
        },

// Get locator
        getLocator: function(locator) {
          var result;

if (typeof locator === 'string') {
            result = locator;
          } else if (isFunction(locator)) {
            result = locator();
          } else {
            throwError('"locator" is incorrect. (String | Function)');
          }

return result;
        },

// Filter data by "locator"
        filterDataByLocator: function(dataSource) {
          var locator = this.getLocator(attributes.locator);
          var filteredData;

// Datasource is an Object, use "locator" to locate the true data
          if (Helpers.isObject(dataSource)) {
            try {
              $.each(locator.split('.'), function(index, item) {
                filteredData = (filteredData ? filteredData : dataSource)[item];
              });
            }
            catch (e) {
            }

if (!filteredData) {
              throwError('dataSource.' + locator + ' is undefined.');
            } else if (!Helpers.isArray(filteredData)) {
              throwError('dataSource.' + locator + ' must be an Array.');
            }
          }

return filteredData || dataSource;
        },

// Parse dataSource
        parseDataSource: function(dataSource, callback) {
          var self = this;

if (Helpers.isObject(dataSource)) {
            callback(attributes.dataSource = self.filterDataByLocator(dataSource));
          } else if (Helpers.isArray(dataSource)) {
            callback(attributes.dataSource = dataSource);
          } else if (isFunction(dataSource)) {
            attributes.dataSource(function(data) {
              if (!Helpers.isArray(data)) {
                throwError('The parameter of "done" Function should be an Array.');
              }
              self.parseDataSource.call(self, data, callback);
            });
          } else if (typeof dataSource === 'string') {
            if (/^https?|file:/.test(dataSource)) {
              attributes.ajaxDataType = 'jsonp';
            }
            callback(dataSource);
          } else {
            throwError('Unexpected type of "dataSource".');
          }
        },

callHook: function(hook) {
          var paginationData = container.data('pagination');
          var result;

var args = Array.prototype.slice.apply(arguments);
          args.shift();

if (attributes[hook] && isFunction(attributes[hook])) {
            if (attributes[hook].apply(global, args) === false) {
              result = false;
            }
          }

if (paginationData.hooks && paginationData.hooks[hook]) {
            $.each(paginationData.hooks[hook], function(index, item) {
              if (item.apply(global, args) === false) {
                result = false;
              }
            });
          }

return result !== false;
        },

observer: function() {
          var self = this;
          var el = self.model.el;

// Go to specified page number
          container.on(eventPrefix + 'go', function(event, pageNumber, done) {
            pageNumber = parseInt(pageNumber);

if (!pageNumber) return;

if (!isNumeric(pageNumber)) {
              throwError('"pageNumber" is incorrect. (Number)');
            }

self.go(pageNumber, done);
          });

// Page number button click
          el.on('click', '.J-paginationjs-page', function(event) {
            var current = $(event.currentTarget);
            var pageNumber = current.attr('data-num').trim();

if (!pageNumber || current.hasClass(attributes.disableClassName) || current.hasClass(attributes.activeClassName)) return;

// Before page button clicked
            if (self.callHook('beforePageOnClick', event, pageNumber) === false) return false;

self.go(pageNumber);

// After page button clicked
            self.callHook('afterPageOnClick', event, pageNumber);

if (!attributes.pageLink) return false;
          });

// Previous button click
          el.on('click', '.J-paginationjs-previous', function(event) {
            var current = $(event.currentTarget);
            var pageNumber = current.attr('data-num').trim();

if (!pageNumber || current.hasClass(attributes.disableClassName)) return;

// Before previous clicked
            if (self.callHook('beforePreviousOnClick', event, pageNumber) === false) return false;

self.go(pageNumber);

// After previous clicked
            self.callHook('afterPreviousOnClick', event, pageNumber);

if (!attributes.pageLink) return false;
          });

// Next button click
          el.on('click', '.J-paginationjs-next', function(event) {
            var current = $(event.currentTarget);
            var pageNumber = current.attr('data-num').trim();

if (!pageNumber || current.hasClass(attributes.disableClassName)) return;

// Before next clicked
            if (self.callHook('beforeNextOnClick', event, pageNumber) === false) return false;

self.go(pageNumber);

// After next clicked
            self.callHook('afterNextOnClick', event, pageNumber);

if (!attributes.pageLink) return false;
          });

// Go button click
          el.on('click', '.J-paginationjs-go-button', function(event) {
            var pageNumber = $('.J-paginationjs-go-pagenumber', el).val();

// Before Go button clicked
            if (self.callHook('beforeGoButtonOnClick', event, pageNumber) === false) return false;

container.trigger(eventPrefix + 'go', pageNumber);

// After Go button clicked
            self.callHook('afterGoButtonOnClick', event, pageNumber);
          });

// go input enter
          el.on('keyup', '.J-paginationjs-go-pagenumber', function(event) {
            if (event.which === 13) {
              var pageNumber = $(event.currentTarget).val();

// Before Go input enter
              if (self.callHook('beforeGoInputOnEnter', event, pageNumber) === false) return false;

container.trigger(eventPrefix + 'go', pageNumber);

// Regains focus
              $('.J-paginationjs-go-pagenumber', el).focus();

// After Go input enter
              self.callHook('afterGoInputOnEnter', event, pageNumber);
            }
          });

// Previous page
          container.on(eventPrefix + 'previous', function(event, done) {
            self.previous(done);
          });

// Next page
          container.on(eventPrefix + 'next', function(event, done) {
            self.next(done);
          });

// Disable
          container.on(eventPrefix + 'disable', function() {
            self.disable();
          });

// Enable
          container.on(eventPrefix + 'enable', function() {
            self.enable();
          });

// Refresh
          container.on(eventPrefix + 'refresh', function(event, done) {
            self.refresh(done);
          });

// Show
          container.on(eventPrefix + 'show', function() {
            self.show();
          });

// Hide
          container.on(eventPrefix + 'hide', function() {
            self.hide();
          });

// Destroy
          container.on(eventPrefix + 'destroy', function() {
            self.destroy();
          });

// Whether to load the default page
          var validTotalPage = Math.max(self.getTotalPage(), 1)
          var defaultPageNumber = attributes.pageNumber;
          // Default pageNumber should be 1 when totalNumber is dynamic
          if (self.isDynamicTotalNumber) {
            defaultPageNumber = 1;
          }
          if (attributes.triggerPagingOnInit) {
            container.trigger(eventPrefix + 'go', Math.min(defaultPageNumber, validTotalPage));
          }
        }
      };

// Pagination has been initialized
      if (container.data('pagination') && container.data('pagination').initialized === true) {
        // Handle events
        if (isNumeric(options)) {
          // eg: container.pagination(5)
          container.trigger.call(this, eventPrefix + 'go', options, arguments[1]);
          return this;
        } else if (typeof options === 'string') {
          var args = Array.prototype.slice.apply(arguments);
          args[0] = eventPrefix + args[0];

switch (options) {
            case 'previous':
            case 'next':
            case 'go':
            case 'disable':
            case 'enable':
            case 'refresh':
            case 'show':
            case 'hide':
            case 'destroy':
              container.trigger.apply(this, args);
              break;
            // Get selected page number
            case 'getSelectedPageNum':
              if (container.data('pagination').model) {
                return container.data('pagination').model.pageNumber;
              } else {
                return container.data('pagination').attributes.pageNumber;
              }
            // Get total page
            case 'getTotalPage':
              return Math.ceil(container.data('pagination').model.totalNumber / container.data('pagination').model.pageSize);
            // Get data of selected page
            case 'getSelectedPageData':
              return container.data('pagination').currentPageData;
            // Whether pagination has been disabled
            case 'isDisabled':
              return container.data('pagination').model.disabled === true;
            default:
              throwError('Unknown action: ' + options);
          }
          return this;
        } else {
          // Uninstall the old instance before initializing a new one
          uninstallPlugin(container);
        }
      } else {
        if (!Helpers.isObject(options)) throwError('Illegal options');
      }

// Check parameters
      parameterChecker(attributes);

pagination.initialize();

return this;
    };

// Instance defaults
    $.fn[pluginName].defaults = {

// Data source
      // Array | String | Function | Object
      //dataSource: '',

// String | Function
      //locator: 'data',

// Find totalNumber from remote response, the totalNumber will be ignored when totalNumberLocator is specified
      // Function
      //totalNumberLocator: function() {},

// Total entries
      totalNumber: 0,

// Default page
      pageNumber: 1,

// entries of per page
      pageSize: 10,

// Page range (pages on both sides of the current page)
      pageRange: 2,

// Whether to display the 'Previous' button
      showPrevious: true,

// Whether to display the 'Next' button
      showNext: true,

// Whether to display the page buttons
      showPageNumbers: true,

showNavigator: false,

// Whether to display the 'Go' input
      showGoInput: false,

// Whether to display the 'Go' button
      showGoButton: false,

// Page link
      pageLink: '',

// 'Previous' text
      prevText: '&laquo;',

// 'Next' text
      nextText: '&raquo;',

// Ellipsis text
      ellipsisText: '...',

// 'Go' button text
      goButtonText: 'Go',

// Additional className for Pagination element
      //className: '',

classPrefix: 'paginationjs',

// Default active class
      activeClassName: 'active',

// Default disable class
      disableClassName: 'disabled',

//ulClassName: '',

// Whether to insert inline style
      inlineStyle: true,

formatNavigator: '<%= currentPage %> / <%= totalPage %>',

formatGoInput: '<%= input %>',

formatGoButton: '<%= button %>',

// Pagination element's position in the container
      position: 'bottom',

// Auto hide previous button when current page is the first page
      autoHidePrevious: false,

// Auto hide next button when current page is the last page
      autoHideNext: false,

//header: '',

//footer: '',

// Aliases for custom pagination parameters
      //alias: {},

// Whether to trigger pagination at initialization
      triggerPagingOnInit: true,

// Whether to hide pagination when less than one page
      hideWhenLessThanOnePage: false,

showFirstOnEllipsisShow: true,

showLastOnEllipsisShow: true,

// Pagination callback
      callback: function() {}
    };

// Hook register
    $.fn[pluginHookMethod] = function(hook, callback) {
      if (arguments.length < 2) {
        throwError('Missing argument.');
      }

if (!isFunction(callback)) {
        throwError('callback must be a function.');
      }

var container = $(this);
      var paginationData = container.data('pagination');

if (!paginationData) {
        container.data('pagination', {});
        paginationData = container.data('pagination');
      }

!paginationData.hooks && (paginationData.hooks = {});

//paginationData.hooks[hook] = callback;
      paginationData.hooks[hook] = paginationData.hooks[hook] || [];
      paginationData.hooks[hook].push(callback);

};

// Static method
    $[pluginName] = function(selector, options) {
      if (arguments.length < 2) {
        throwError('Requires two parameters.');
      }

var container;

// 'selector' is a jQuery object
      if (typeof selector !== 'string' && selector instanceof jQuery) {
        container = selector;
      } else {
        container = $(selector);
      }

if (!container.length) return;

container.pagination(options);

return container;
    };

// ============================================================
    // helpers
    // ============================================================

var Helpers = {};

// Throw error
    function throwError(content) {
      throw new Error('Pagination: ' + content);
    }

// Check parameters
    function parameterChecker(args) {
      if (!args.dataSource) {
        throwError('"dataSource" is required.');
      }

if (typeof args.dataSource === 'string') {
        if (args.totalNumberLocator === undefined) {
          if (args.totalNumber === undefined) {
            throwError('"totalNumber" is required.');
          } else if (!isNumeric(args.totalNumber)) {
            throwError('"totalNumber" is incorrect. (Number)');
          }
        } else {
          if (!isFunction(args.totalNumberLocator)) {
            throwError('"totalNumberLocator" should be a Function.');
          }
        }
      } else if (Helpers.isObject(args.dataSource)) {
        if (typeof args.locator === 'undefined') {
          throwError('"dataSource" is an Object, please specify "locator".');
        } else if (typeof args.locator !== 'string' && !isFunction(args.locator)) {
          throwError('' + args.locator + ' is incorrect. (String | Function)');
        }
      }

if (args.formatResult !== undefined && !isFunction(args.formatResult)) {
        throwError('"formatResult" should be a Function.');
      }
    }

// uninstall plugin
    function uninstallPlugin(target) {
      var events = ['go', 'previous', 'next', 'disable', 'enable', 'refresh', 'show', 'hide', 'destroy'];

// off events of old instance
      $.each(events, function(index, value) {
        target.off(eventPrefix + value);
      });

// reset pagination data
      target.data('pagination', {});

// remove old
      $('.paginationjs', target).remove();
    }

// Object type detection
    function getObjectType(object, tmp) {
      return ( (tmp = typeof(object)) == "object" ? object == null && "null" || Object.prototype.toString.call(object).slice(8, -1) : tmp ).toLowerCase();
    }

$.each(['Object', 'Array', 'String'], function(index, name) {
      Helpers['is' + name] = function(object) {
        return getObjectType(object) === name.toLowerCase();
      };
    });

/*
     * export via AMD or CommonJS
     * */
    if (typeof define === 'function' && define.amd) {
      define(function() {
        return $;
      });
    }

})(this, window.jQuery);

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