closes #1730

postCount != lastPostIndex unfortunately, that will need some rethinking

public/language/en_GB/global.json

@@ -24,6 +24,7 @@
 
 	"pagination": "Pagination",
 	"pagination.out_of": "%1 out of %2",
+	"pagination.enter_index": "Enter index",
 
 	"header.admin": "Admin",
 	"header.recent": "Recent",

public/src/modules/navigator.js

@@ -1,7 +1,7 @@
 
 'use strict';
 
-/* globals app, define, ajaxify */
+/* globals app, define, ajaxify, utils, translator */
 
 
 define('navigator', function() {
@@ -17,22 +17,49 @@ define('navigator', function() {
 
 		$(window).on('scroll', navigator.update);
 
-		$('.pagination-block a').off('click').on('click', function() {
-			return false;
+		$('.pagination-block .dropdown-menu').off('click').on('click', function(e) {
+			e.stopPropagation();
 		});
 
-		$('.pagination-block i:first').off('click').on('click', function() {
+		$('.pagination-block .pageup').off('click').on('click', function() {
 			navigator.scrollToTop();
 		});
 
-		$('.pagination-block i:last').off('click').on('click', function() {
+		$('.pagination-block .pagedown').off('click').on('click', function() {
 			navigator.scrollToBottom();
 		});
 
+		$('.pagination-block .pagetop').off('click').on('click', function() {
+			ajaxify.go(generateUrl());
+		});
+
+		$('.pagination-block .pagebottom').off('click').on('click', function() {
+			ajaxify.go(generateUrl(count));
+		});
+
+		$('.pagination-block input').on('keydown', function(e) {
+			if (e.which === 13) {
+				var input = $(this);
+				if (!utils.isNumber(input.val())) {
+					input.val('');
+					return;
+				}
+				var url = generateUrl(input.val());
+				input.val('');
+				$('.pagination-block .dropdown-toggle').trigger('click');
+				ajaxify.go(url);
+			}
+		});
+
 		navigator.setCount(count);
 		navigator.update();
 	};
 
+	function generateUrl(index) {
+		var parts = window.location.pathname.split('/');
+		return parts[1] + '/' + parts[2] + '/' + parts[3] + (index ? '/' + index : '');
+	}
+
 	navigator.setCount = function(value) {
 		count = parseInt(value, 10);
 		navigator.updateTextAndProgressBar();

src/controllers/categories.js

@@ -90,7 +90,15 @@ categoriesController.get = function(req, res, next) {
 					return next(err);
 				}
 
-				var start = (page - 1) * settings.topicsPerPage,
+				var topicIndex = 0;
+				if (!settings.usePagination) {
+					topicIndex = Math.max((req.params.topic_index || 1) - (settings.topicsPerPage - 1), 0);
+				} else if (!req.query.page) {
+					var index = Math.max(parseInt((req.params.topic_index || 0), 10), 0);
+					page = Math.ceil((index + 1) / settings.topicsPerPage);
+				}
+
+				var start = (page - 1) * settings.topicsPerPage + topicIndex,
 					end = start + settings.topicsPerPage - 1;
 
 				categories.getCategoryById(cid, start, end, uid, function (err, categoryData) {

src/middleware/middleware.js

@@ -99,6 +99,26 @@ middleware.checkPostIndex = function(req, res, next) {
 	});
 };
 
+middleware.checkTopicIndex = function(req, res, next) {
+	categories.getCategoryField(req.params.category_id, 'topic_count', function(err, topicCount) {
+		if (err) {
+			return next(err);
+		}
+		var topicIndex = parseInt(req.params.topic_index, 10);
+		topicCount = parseInt(topicCount, 10) + 1;
+		var url = '';
+		console.log(topicIndex, topicCount);
+		if (topicIndex > topicCount) {
+			url = '/category/' + req.params.category_id + '/' + req.params.slug + '/' + topicCount;
+			return res.locals.isAPI ? res.json(302, url) : res.redirect(url);
+		} else if (topicIndex < 1) {
+			url = '/category/' + req.params.category_id + '/' + req.params.slug;
+			return res.locals.isAPI ? res.json(302, url) : res.redirect(url);
+		}
+		next();
+	});
+};
+
 middleware.prepareAPI = function(req, res, next) {
 	res.locals.isAPI = true;
 	next();

src/routes/index.js

@@ -79,6 +79,9 @@ function categoryRoutes(app, middleware, controllers) {
 
 	app.get('/api/unread/total', middleware.authenticate, controllers.categories.unreadTotal);
 
+	app.get('/category/:category_id/:slug/:topic_index', middleware.buildHeader, middleware.checkTopicIndex, controllers.categories.get);
+	app.get('/api/category/:category_id/:slug/:topic_index', middleware.checkTopicIndex, controllers.categories.get);
+
 	app.get('/category/:category_id/:slug?', middleware.buildHeader, middleware.addSlug, controllers.categories.get);
 	app.get('/api/category/:category_id/:slug?', controllers.categories.get);
 }