move removeExtra to IS

public/src/client/category.js

@@ -10,6 +10,7 @@ define('forum/category', [
 	'sort',
 	'components',
 	'translator'
+
 ], function(pagination, infinitescroll, share, navigator, categoryTools, sort, components, translator) {
 	var Category = {};
 
@@ -307,60 +308,34 @@ define('forum/category', [
 			before = topics.first();
 		}
 
-		templates.parse('category', 'topics', data, function(html) {
-			translator.translate(html, function(translatedHTML) {
-				var container = $('[component="category"]'),
-					html = $(translatedHTML);
-
-				$('[component="category"]').removeClass('hidden');
-				$('.category-sidebar').removeClass('hidden');
-
-				$('#category-no-topics').remove();
-
-
-				if (after) {
-					html.insertAfter(after);
-				} else if (before) {
-					var height = $(document).height(),
-					 	scrollTop = $(window).scrollTop();
-
-					html.insertBefore(before);
-
-					$(window).scrollTop(scrollTop + ($(document).height() - height));
-				} else {
-					container.append(html);
-				}
-
-				removeExtraTopics(direction);
+		infinitescroll.parseAndTranslate('category', 'topics', data, function(html) {
+			$('[component="category"]').removeClass('hidden');
+			$('.category-sidebar').removeClass('hidden');
 
-				if (typeof callback === 'function') {
-					callback();
-				}
+			$('#category-no-topics').remove();
 
-				html.find('.timeago').timeago();
-				app.createUserTooltips();
-				utils.makeNumbersHumanReadable(html.find('.human-readable-number'));
-			});
-		});
-	};
-
-	function removeExtraTopics(direction) {
-		var topics = $('[component="category/topic"]');
-		if (topics.length > 60) {
-			var removeCount = topics.length - 60;
-			if (direction > 0) {
+			if (after) {
+				html.insertAfter(after);
+			} else if (before) {
 				var height = $(document).height(),
-					scrollTop = $(window).scrollTop();
+				 	scrollTop = $(window).scrollTop();
 
-				topics.slice(0, removeCount).remove();
+				html.insertBefore(before);
 
 				$(window).scrollTop(scrollTop + ($(document).height() - height));
 			} else {
-				topics.slice(topics.length - removeCount).remove();
+				$('[component="category"]').append(html);
 			}
-		}
-	}
 
+			infinitescroll.removeExtra($('[component="category/topic"]'), direction, 60);
+
+			html.find('.timeago').timeago();
+			app.createUserTooltips();
+			utils.makeNumbersHumanReadable(html.find('.human-readable-number'));
+
+			callback();
+		});
+	};
 
 	return Category;
 });

public/src/client/infinitescroll.js

@@ -68,5 +68,23 @@ define('forum/infinitescroll', ['translator'], function(translator) {
 		});
 	};
 
+	scroll.removeExtra = function(els, direction, count) {
+		if (els.length <= count) {
+			return;
+		}
+
+		var removeCount = els.length - count;
+		if (direction > 0) {
+			var height = $(document).height(),
+				scrollTop = $(window).scrollTop();
+
+			els.slice(0, removeCount).remove();
+
+			$(window).scrollTop(scrollTop + ($(document).height() - height));
+		} else {
+			els.slice(els.length - removeCount).remove();
+		}
+	};
+
 	return scroll;
 });

public/src/client/topic/posts.js

@@ -152,7 +152,7 @@ define('forum/topic/posts', [
 				components.get('topic').append(html);
 			}
 
-			removeExtraPosts(direction);
+			infinitescroll.removeExtra(components.get('posts'), direction, 40);
 
 			html.hide().fadeIn('slow');
 
@@ -167,23 +167,6 @@ define('forum/topic/posts', [
 		});
 	}
 
-	function removeExtraPosts(direction) {
-		var posts = components.get('post');
-		if (posts.length > 40) {
-			var removeCount = posts.length - 40;
-			if (direction > 0) {
-				var height = $(document).height(),
-					scrollTop = $(window).scrollTop();
-
-				posts.slice(0, removeCount).remove();
-
-				$(window).scrollTop(scrollTop + ($(document).height() - height));
-			} else {
-				posts.slice(posts.length - removeCount).remove();
-			}
-		}
-	}
-
 	function onNewPostsLoaded(html, pids) {
 		if (app.user.uid) {
 			socket.emit('posts.getPrivileges', pids, function(err, privileges) {