From 31f9b418ba3d37ae32f3c0ccda53563e08b21a5d Mon Sep 17 00:00:00 2001
From: Pierre Rudloff <contact@rudloff.pro>
Date: Wed, 12 Apr 2017 23:16:44 +0200
Subject: [PATCH 1/2] Scroll to next/previous thread when pressing j/k (fixes
 #3327)

---
 js/main.js | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/js/main.js b/js/main.js
index 556e4ed8cf..98c219d78c 100644
--- a/js/main.js
+++ b/js/main.js
@@ -322,6 +322,29 @@
 			}
 		});
 
+		$(document).keydown(function (event) {
+			var threads = $('.thread_level_1');
+			if ((event.keyCode === 74 || event.keyCode === 75) && !$(event.target).is('textarea, input')) {
+				var scrollTop = $(window).scrollTop();
+				if (event.keyCode === 75) {
+					threads = $(threads.get().reverse());
+				}
+				threads.each(function(key, item) {
+					var comparison;
+					var top = $(item).offset().top - 100;
+					if (event.keyCode === 74) {
+						comparison = top > scrollTop + 1;
+					} else if (event.keyCode === 75) {
+						comparison = top < scrollTop - 1;
+					}
+					if (comparison) {
+						$('html, body').animate({ scrollTop: top }, 200);
+						return false;
+					}
+				});
+			}
+		});
+
 		// Set an event listener for infinite scroll
 		if(typeof infinite_scroll !== 'undefined') {
 			$(window).scroll(function(e){

From 8567113f0f4d1014098e7b16b9cd805944c67f56 Mon Sep 17 00:00:00 2001
From: Pierre Rudloff <contact@rudloff.pro>
Date: Thu, 13 Apr 2017 17:20:05 +0200
Subject: [PATCH 2/2] Doc about j/k keyboard shortcuts

---
 doc/KeyboardShortcuts.md | 10 ++++++++++
 js/main.js               |  1 +
 2 files changed, 11 insertions(+)
 create mode 100644 doc/KeyboardShortcuts.md

diff --git a/doc/KeyboardShortcuts.md b/doc/KeyboardShortcuts.md
new file mode 100644
index 0000000000..cf783b0da1
--- /dev/null
+++ b/doc/KeyboardShortcuts.md
@@ -0,0 +1,10 @@
+Keyboard shortcuts in Friendica
+=======================
+
+* [Home](help)
+
+General
+-------
+
+* j: Scroll to next thread
+* k: Scroll to previous thread
diff --git a/js/main.js b/js/main.js
index 98c219d78c..c85aab4a27 100644
--- a/js/main.js
+++ b/js/main.js
@@ -322,6 +322,7 @@
 			}
 		});
 
+		// Scroll to the next/previous thread when pressing J and K
 		$(document).keydown(function (event) {
 			var threads = $('.thread_level_1');
 			if ((event.keyCode === 74 || event.keyCode === 75) && !$(event.target).is('textarea, input')) {