<!DOCTYPE html>
<html ng-app="myApp">
<head>
<link data-require="bootstrap-css@3.1.1" data-semver="3.1.1" rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" />
<script data-require="angular.js@1.3.0" data-semver="1.3.0" src="https://code.angularjs.org/1.3.0/angular.js"></script>
<script data-require="jquery@*" data-semver="2.0.3" src="http://code.jquery.com/jquery-2.0.3.min.js"></script>
<script data-require="bootstrap@3.1.1" data-semver="3.1.1" src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="style.css" />
<script src="script.js"></script>
<script src="dirPagination.js"></script>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-lg-8">
<div ng-controller="MyController" class="my-controller">
<h1>Tasty Paginated Menu</h1>
<small>this is in "MyController"</small>
<div class="row">
<div class="col-xs-4">
<h3>Meals Page: {{ currentPage }}</h3>
</div>
<div class="col-xs-4">
<label for="search">Search:</label>
<input ng-model="q" id="search" class="form-control" placeholder="Filter text">
</div>
<div class="col-xs-4">
<label for="search">items per page:</label>
<input type="number" min="1" max="100" class="form-control" ng-model="pageSize">
</div>
</div>
<br>
<div class="panel panel-default">
<div class="panel-body">
<ul>
<li dir-paginate="meal in meals | filter:q | itemsPerPage: pageSize" current-page="currentPage"><strong>{{ meal }}</strong>
<ul>
<li>$index: {{ $index }}</li>
<li>corrected index: {{ ($index + 1) + (currentPage - 1) * pageSize}}</li>
<li>is $first: {{ $first }}</li>
<li>is $middle: {{ $middle }}</li>
<li>is $last: {{ $last }}</li>
</ul>
</ul>
</div>
</div>
</div>
<div ng-controller="OtherController" class="other-controller">
<small>this is in "OtherController"</small>
<div class="text-center">
<dir-pagination-controls boundary-links="true" on-page-change="pageChangeHandler(newPageNumber)" template-url="dirPagination.tpl.html"></dir-pagination-controls>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
// Code goes here
var myApp = angular.module('myApp', ['angularUtils.directives.dirPagination']);
function MyController($scope) {
$scope.currentPage = 1;
$scope.pageSize = 10;
$scope.meals = [];
var dishes = [
'noodles',
'sausage',
'beans on toast',
'cheeseburger',
'battered mars bar',
'crisp butty',
'yorkshire pudding',
'wiener schnitzel',
'sauerkraut mit ei',
'salad',
'onion soup',
'bak choi',
'avacado maki'
];
var sides = [
'with chips',
'a la king',
'drizzled with cheese sauce',
'with a side salad',
'on toast',
'with ketchup',
'on a bed of cabbage',
'wrapped in streaky bacon',
'on a stick with cheese',
'in pitta bread'
];
for (var i = 1; i <= 100; i++) {
var dish = dishes[Math.floor(Math.random() * dishes.length)];
var side = sides[Math.floor(Math.random() * sides.length)];
$scope.meals.push('meal ' + i + ': ' + dish + ' ' + side);
}
$scope.pageChangeHandler = function(num) {
console.log('meals page changed to ' + num);
};
}
function OtherController($scope) {
$scope.pageChangeHandler = function(num) {
console.log('going to page ' + num);
};
}
myApp.controller('MyController', MyController);
myApp.controller('OtherController', OtherController);
/* Styles go here */
.my-controller {
border: 1px solid #fcc;
padding: 5px;
margin: 3px;
}
.my-controller small {
color: #c99;
}
.other-controller {
border: 1px solid #ccf;
padding: 5px;
margin: 3px;
}
.other-controller small {
color: #99c;
}
.third-controller {
border: 1px solid #cfc;
padding: 5px;
margin: 3px;
}
.third-controller small {
color: #9c9;
}
# Pagination Directive
Yes, there are quite a few pagination solutions for Angular out there already, but what I wanted to do was make
something that would be truly plug-n-play - no need to do any set-up or logic in your controller. Just add
an attribute, drop in your navigation wherever you like, and boom - instant, full-featured pagination.
Code: https://github.com/michaelbromley/angularUtils/tree/master/src/directives/pagination
More info: http://www.michaelbromley.co.uk/blog/108/paginate-almost-anything-in-angularjs
/**
* dirPagination - AngularJS module for paginating (almost) anything.
*
*
* Credits
* =======
*
* Daniel Tabuenca: https://groups.google.com/d/msg/angular/an9QpzqIYiM/r8v-3W1X5vcJ
* for the idea on how to dynamically invoke the ng-repeat directive.
*
* I borrowed a couple of lines and a few attribute names from the AngularUI Bootstrap project:
* https://github.com/angular-ui/bootstrap/blob/master/src/pagination/pagination.js
*
* Copyright 2014 Michael Bromley <michael@michaelbromley.co.uk>
*/
(function() {
/**
* Config
*/
var moduleName = 'angularUtils.directives.dirPagination';
var DEFAULT_ID = '__default';
/**
* Module
*/
var module;
try {
module = angular.module(moduleName);
} catch(err) {
// named module does not exist, so create one
module = angular.module(moduleName, []);
}
module.directive('dirPaginate', ['$compile', '$parse', '$timeout', 'paginationService', function($compile, $parse, $timeout, paginationService) {
return {
terminal: true,
multiElement: true,
priority: 5000, // This setting is used in conjunction with the later call to $compile() to prevent infinite recursion of compilation
compile: function dirPaginationCompileFn(tElement, tAttrs){
var expression = tAttrs.dirPaginate;
// regex taken directly from https://github.com/angular/angular.js/blob/master/src/ng/directive/ngRepeat.js#L211
var match = expression.match(/^\s*([\s\S]+?)\s+in\s+([\s\S]+?)(?:\s+track\s+by\s+([\s\S]+?))?\s*$/);
var filterPattern = /\|\s*itemsPerPage\s*:[^|]*/;
if (match[2].match(filterPattern) === null) {
throw 'pagination directive: the \'itemsPerPage\' filter must be set.';
}
var itemsPerPageFilterRemoved = match[2].replace(filterPattern, '');
var collectionGetter = $parse(itemsPerPageFilterRemoved);
// If any value is specified for paginationId, we register the un-evaluated expression at this stage for the benefit of any
// dir-pagination-controls directives that may be looking for this ID.
var rawId = tAttrs.paginationId || DEFAULT_ID;
paginationService.registerInstance(rawId);
return function dirPaginationLinkFn(scope, element, attrs){
// Now that we have access to the `scope` we can interpolate any expression given in the paginationId attribute and
// potentially register a new ID if it evaluates to a different value than the rawId.
var paginationId = $parse(attrs.paginationId)(scope) || attrs.paginationId || DEFAULT_ID;
paginationService.registerInstance(paginationId);
var repeatExpression;
var idDefinedInFilter = !!expression.match(/(\|\s*itemsPerPage\s*:[^|]*:[^|]*)/);
if (paginationId !== DEFAULT_ID && !idDefinedInFilter) {
repeatExpression = expression.replace(/(\|\s*itemsPerPage\s*:[^|]*)/, "$1 : '" + paginationId + "'");
} else {
repeatExpression = expression;
}
// Add ng-repeat to the dom element
if (element[0].hasAttribute('dir-paginate-start') || element[0].hasAttribute('data-dir-paginate-start')) {
// using multiElement mode (dir-paginate-start, dir-paginate-end)
attrs.$set('ngRepeatStart', repeatExpression);
element.eq(element.length - 1).attr('ng-repeat-end', true);
} else {
attrs.$set('ngRepeat', repeatExpression);
}
var compiled = $compile(element, false, 5000); // we manually compile the element again, as we have now added ng-repeat. Priority less than 5000 prevents infinite recursion of compiling dirPaginate
var currentPageGetter;
if (attrs.currentPage) {
currentPageGetter = $parse(attrs.currentPage);
} else {
// if the current-page attribute was not set, we'll make our own
var defaultCurrentPage = paginationId + '__currentPage';
scope[defaultCurrentPage] = 1;
currentPageGetter = $parse(defaultCurrentPage);
}
paginationService.setCurrentPageParser(paginationId, currentPageGetter, scope);
if (typeof attrs.totalItems !== 'undefined') {
paginationService.setAsyncModeTrue(paginationId);
scope.$watch(function() {
return $parse(attrs.totalItems)(scope);
}, function (result) {
if (0 <= result) {
paginationService.setCollectionLength(paginationId, result);
}
});
} else {
scope.$watchCollection(function() {
return collectionGetter(scope);
}, function(collection) {
if (collection) {
paginationService.setCollectionLength(paginationId, collection.length);
}
});
}
// Delegate to the link function returned by the new compilation of the ng-repeat
compiled(scope);
};
}
};
}]);
module.directive('dirPaginationControls', ['paginationService', 'paginationTemplate', function(paginationService, paginationTemplate) {
var numberRegex = /^\d+$/;
/**
* Generate an array of page numbers (or the '...' string) which is used in an ng-repeat to generate the
* links used in pagination
*
* @param currentPage
* @param rowsPerPage
* @param paginationRange
* @param collectionLength
* @returns {Array}
*/
function generatePagesArray(currentPage, collectionLength, rowsPerPage, paginationRange) {
var pages = [];
var totalPages = Math.ceil(collectionLength / rowsPerPage);
var halfWay = Math.ceil(paginationRange / 2);
var position;
if (currentPage <= halfWay) {
position = 'start';
} else if (totalPages - halfWay < currentPage) {
position = 'end';
} else {
position = 'middle';
}
var ellipsesNeeded = paginationRange < totalPages;
var i = 1;
while (i <= totalPages && i <= paginationRange) {
var pageNumber = calculatePageNumber(i, currentPage, paginationRange, totalPages);
var openingEllipsesNeeded = (i === 2 && (position === 'middle' || position === 'end'));
var closingEllipsesNeeded = (i === paginationRange - 1 && (position === 'middle' || position === 'start'));
if (ellipsesNeeded && (openingEllipsesNeeded || closingEllipsesNeeded)) {
pages.push('...');
} else {
pages.push(pageNumber);
}
i ++;
}
return pages;
}
/**
* Given the position in the sequence of pagination links [i], figure out what page number corresponds to that position.
*
* @param i
* @param currentPage
* @param paginationRange
* @param totalPages
* @returns {*}
*/
function calculatePageNumber(i, currentPage, paginationRange, totalPages) {
var halfWay = Math.ceil(paginationRange/2);
if (i === paginationRange) {
return totalPages;
} else if (i === 1) {
return i;
} else if (paginationRange < totalPages) {
if (totalPages - halfWay < currentPage) {
return totalPages - paginationRange + i;
} else if (halfWay < currentPage) {
return currentPage - halfWay + i;
} else {
return i;
}
} else {
return i;
}
}
return {
restrict: 'AE',
templateUrl: function(elem, attrs) {
return attrs.templateUrl || paginationTemplate.getPath();
},
scope: {
maxSize: '=?',
onPageChange: '&?',
paginationId: '=?'
},
link: function dirPaginationControlsLinkFn(scope, element, attrs) {
// rawId is the un-interpolated value of the pagination-id attribute. This is only important when the corresponding dir-paginate directive has
// not yet been linked (e.g. if it is inside an ng-if block), and in that case it prevents this controls directive from assuming that there is
// no corresponding dir-paginate directive and wrongly throwing an exception.
var rawId = attrs.paginationId || DEFAULT_ID;
var paginationId = scope.paginationId || attrs.paginationId || DEFAULT_ID;
if (!paginationService.isRegistered(paginationId) && !paginationService.isRegistered(rawId)) {
var idMessage = (paginationId !== DEFAULT_ID) ? ' (id: ' + paginationId + ') ' : ' ';
throw 'pagination directive: the pagination controls' + idMessage + 'cannot be used without the corresponding pagination directive.';
}
if (!scope.maxSize) { scope.maxSize = 9; }
scope.directionLinks = angular.isDefined(attrs.directionLinks) ? scope.$parent.$eval(attrs.directionLinks) : true;
scope.boundaryLinks = angular.isDefined(attrs.boundaryLinks) ? scope.$parent.$eval(attrs.boundaryLinks) : false;
var paginationRange = Math.max(scope.maxSize, 5);
scope.pages = [];
scope.pagination = {
last: 1,
current: 1
};
scope.range = {
lower: 1,
upper: 1,
total: 1
};
scope.$watch(function() {
return (paginationService.getCollectionLength(paginationId) + 1) * paginationService.getItemsPerPage(paginationId);
}, function(length) {
if (0 < length) {
generatePagination();
}
});
scope.$watch(function() {
return (paginationService.getItemsPerPage(paginationId));
}, function(current, previous) {
if (current != previous) {
goToPage(scope.pagination.current);
}
});
scope.$watch(function() {
return paginationService.getCurrentPage(paginationId);
}, function(currentPage, previousPage) {
if (currentPage != previousPage) {
goToPage(currentPage);
}
});
scope.setCurrent = function(num) {
if (isValidPageNumber(num)) {
paginationService.setCurrentPage(paginationId, num);
}
};
function goToPage(num) {
if (isValidPageNumber(num)) {
scope.pages = generatePagesArray(num, paginationService.getCollectionLength(paginationId), paginationService.getItemsPerPage(paginationId), paginationRange);
scope.pagination.current = num;
updateRangeValues();
// if a callback has been set, then call it with the page number as an argument
if (scope.onPageChange) {
scope.onPageChange({ newPageNumber : num });
}
}
}
function generatePagination() {
var page = parseInt(paginationService.getCurrentPage(paginationId)) || 1;
scope.pages = generatePagesArray(page, paginationService.getCollectionLength(paginationId), paginationService.getItemsPerPage(paginationId), paginationRange);
scope.pagination.current = page;
scope.pagination.last = scope.pages[scope.pages.length - 1];
if (scope.pagination.last < scope.pagination.current) {
scope.setCurrent(scope.pagination.last);
} else {
updateRangeValues();
}
}
/**
* This function updates the values (lower, upper, total) of the `scope.range` object, which can be used in the pagination
* template to display the current page range, e.g. "showing 21 - 40 of 144 results";
*/
function updateRangeValues() {
var currentPage = paginationService.getCurrentPage(paginationId),
itemsPerPage = paginationService.getItemsPerPage(paginationId),
totalItems = paginationService.getCollectionLength(paginationId);
scope.range.lower = (currentPage - 1) * itemsPerPage + 1;
scope.range.upper = Math.min(currentPage * itemsPerPage, totalItems);
scope.range.total = totalItems;
}
function isValidPageNumber(num) {
return (numberRegex.test(num) && (0 < num && num <= scope.pagination.last));
}
}
};
}]);
module.filter('itemsPerPage', ['paginationService', function(paginationService) {
return function(collection, itemsPerPage, paginationId) {
if (typeof (paginationId) === 'undefined') {
paginationId = DEFAULT_ID;
}
if (!paginationService.isRegistered(paginationId)) {
throw 'pagination directive: the itemsPerPage id argument (id: ' + paginationId + ') does not match a registered pagination-id.';
}
var end;
var start;
if (collection instanceof Array) {
itemsPerPage = parseInt(itemsPerPage) || 9999999999;
if (paginationService.isAsyncMode(paginationId)) {
start = 0;
} else {
start = (paginationService.getCurrentPage(paginationId) - 1) * itemsPerPage;
}
end = start + itemsPerPage;
paginationService.setItemsPerPage(paginationId, itemsPerPage);
return collection.slice(start, end);
} else {
return collection;
}
};
}]);
module.service('paginationService', function() {
var instances = {};
var lastRegisteredInstance;
this.registerInstance = function(instanceId) {
if (typeof instances[instanceId] === 'undefined') {
instances[instanceId] = {
asyncMode: false
};
lastRegisteredInstance = instanceId;
}
};
this.isRegistered = function(instanceId) {
return (typeof instances[instanceId] !== 'undefined');
};
this.getLastInstanceId = function() {
return lastRegisteredInstance;
};
this.setCurrentPageParser = function(instanceId, val, scope) {
instances[instanceId].currentPageParser = val;
instances[instanceId].context = scope;
};
this.setCurrentPage = function(instanceId, val) {
instances[instanceId].currentPageParser.assign(instances[instanceId].context, val);
};
this.getCurrentPage = function(instanceId) {
var parser = instances[instanceId].currentPageParser;
return parser ? parser(instances[instanceId].context) : 1;
};
this.setItemsPerPage = function(instanceId, val) {
instances[instanceId].itemsPerPage = val;
};
this.getItemsPerPage = function(instanceId) {
return instances[instanceId].itemsPerPage;
};
this.setCollectionLength = function(instanceId, val) {
instances[instanceId].collectionLength = val;
};
this.getCollectionLength = function(instanceId) {
return instances[instanceId].collectionLength;
};
this.setAsyncModeTrue = function(instanceId) {
instances[instanceId].asyncMode = true;
};
this.isAsyncMode = function(instanceId) {
return instances[instanceId].asyncMode;
};
});
module.provider('paginationTemplate', function() {
var templatePath = 'directives/pagination/dirPagination.tpl.html';
this.setPath = function(path) {
templatePath = path;
};
this.$get = function() {
return {
getPath: function() {
return templatePath;
}
};
};
});
})();
<ul class="pagination" ng-if="1 < pages.length">
<li ng-if="boundaryLinks" ng-class="{ disabled : pagination.current == 1 }">
<a href="" ng-click="setCurrent(1)">«</a>
</li>
<li ng-if="directionLinks" ng-class="{ disabled : pagination.current == 1 }" class="ng-scope">
<a href="" ng-click="setCurrent(pagination.current - 1)" class="ng-binding">‹</a>
</li>
<li ng-repeat="pageNumber in pages track by $index" ng-class="{ active : pagination.current == pageNumber, disabled : pageNumber == '...' }">
<a href="" ng-click="setCurrent(pageNumber)">{{ pageNumber }}</a>
</li>
<li ng-if="directionLinks" ng-class="{ disabled : pagination.current == pagination.last }" class="ng-scope">
<a href="" ng-click="setCurrent(pagination.current + 1)" class="ng-binding">›</a>
</li>
<li ng-if="boundaryLinks" ng-class="{ disabled : pagination.current == pagination.last }">
<a href="" ng-click="setCurrent(pagination.last)">»</a>
</li>
</ul>