keyboard navigation

idea stolen from http://userscripts.org/scripts/show/90085

4chan_x.coffee

@@ -11,6 +11,7 @@ config =
     'Reply Hiding':        [true, 'Hide single replies']
     'Show Stubs':          [true, 'Of hidden threads / replies']
     'Thread Navigation':   [true, 'Navigate to previous / next thread']
+    'Keyboard Navigation': [true, 'Navigate threads w/ your keyboard']
     'Reply Navigation':    [true, 'Navigate to the beginning / end of a thread']
     'Thread Watcher':      [true, 'Bookmark threads']
     'Thread Expansion':    [true, 'View all replies']
@@ -354,6 +355,27 @@ iframeLoad = ->
         remove qr
     recaptchaReload()
 
+keyboardNav = (e) ->
+    hash = Number(location.hash?.substring(1)) or 0
+    switch e.keyCode
+        when 71 #g
+            if e.shiftKey
+                location.hash = 'navbot'
+            else
+                location.hash = 'navtop'
+        when 72 #h
+            if g.PAGENUM > 0
+                location.pathname = "/#{g.BOARD}/#{g.PAGENUM - 1}#1"
+        when 74 #j
+            if hash < 10
+                location.hash = hash + 1
+        when 75 #k
+            if hash > 0
+                location.hash = hash - 1 or 'navtop'
+        when 76 #l
+            if g.PAGENUM < 15
+                location.pathname = "/#{g.BOARD}/#{g.PAGENUM + 1}#1"
+
 nodeInserted = (e) ->
     target = e.target
     if target.nodeName is 'TABLE'
@@ -872,7 +894,10 @@ if g.REPLY
         if text
             d.title = "/#{g.BOARD}/ - #{text}"
 
-else
+else #not reply
+    if getConfig 'Keyboard Navigation'
+        d.addEventListener 'keydown', keyboardNav, true
+
     if getConfig 'Thread Hiding'
         delform = $('form[name=delform]')
         #don't confuse other scripts

4chan_x.js

@@ -1,11 +1,12 @@
 (function() {
-  var $, $$, AEOS, DAY, _, _i, _len, _ref, _ref2, a, addTo, arr, as, autoWatch, autohide, b, board, callback, clearHidden, close, config, cooldown, cutoff, d, delform, down, editSauce, el, expandComment, expandThread, formSubmit, g, getConfig, getTime, hide, hideReply, hideThread, href, html, i, i1, id, iframe, iframeLoad, inAfter, inBefore, inputs, l, l1, lastChecked, m, n, navbotr, navtopr, nodeInserted, now, omitted, onloadComment, onloadThread, options, optionsClose, parseResponse, pathname, quickReply, recaptcha, recaptchaListener, recaptchaReload, redirect, remove, replace, replyNav, report, show, showReply, showThread, slice, span, stopPropagation, temp, text, textContent, thread, threadF, threads, tn, up, watch, watchX, watcher, watcherUpdate, x;
+  var $, $$, AEOS, DAY, _, _i, _len, _ref, _ref2, a, addTo, arr, as, autoWatch, autohide, b, board, callback, clearHidden, close, config, cooldown, cutoff, d, delform, down, editSauce, el, expandComment, expandThread, formSubmit, g, getConfig, getTime, hide, hideReply, hideThread, href, html, i, i1, id, iframe, iframeLoad, inAfter, inBefore, inputs, keyboardNav, l, l1, lastChecked, m, n, navbotr, navtopr, nodeInserted, now, omitted, onloadComment, onloadThread, options, optionsClose, parseResponse, pathname, quickReply, recaptcha, recaptchaListener, recaptchaReload, redirect, remove, replace, replyNav, report, show, showReply, showThread, slice, span, stopPropagation, temp, text, textContent, thread, threadF, threads, tn, up, watch, watchX, watcher, watcherUpdate, x;
   var __slice = Array.prototype.slice, __hasProp = Object.prototype.hasOwnProperty;
   config = {
     'Thread Hiding': [true, 'Hide entire threads'],
     'Reply Hiding': [true, 'Hide single replies'],
     'Show Stubs': [true, 'Of hidden threads / replies'],
     'Thread Navigation': [true, 'Navigate to previous / next thread'],
+    'Keyboard Navigation': [true, 'Navigate threads w/ your keyboard'],
     'Reply Navigation': [true, 'Navigate to the beginning / end of a thread'],
     'Thread Watcher': [true, 'Bookmark threads'],
     'Thread Expansion': [true, 'View all replies'],
@@ -439,6 +440,22 @@
     }
     return recaptchaReload();
   };
+  keyboardNav = function(e) {
+    var hash;
+    hash = Number(location.hash == null ? undefined : location.hash.substring(1)) || 0;
+    switch (e.keyCode) {
+      case 71:
+        return e.shiftKey ? (location.hash = 'navbot') : (location.hash = 'navtop');
+      case 72:
+        return g.PAGENUM > 0 ? (location.pathname = ("/" + (g.BOARD) + "/" + (g.PAGENUM - 1) + "#1")) : null;
+      case 74:
+        return hash < 10 ? (location.hash = hash + 1) : null;
+      case 75:
+        return hash > 0 ? (location.hash = hash - 1 || 'navtop') : null;
+      case 76:
+        return g.PAGENUM < 15 ? (location.pathname = ("/" + (g.BOARD) + "/" + (g.PAGENUM + 1) + "#1")) : null;
+    }
+  };
   nodeInserted = function(e) {
     var _i, _len, _ref, _result, callback, qr, target;
     target = e.target;
@@ -1118,6 +1135,9 @@
       }
     }
   } else {
+    if (getConfig('Keyboard Navigation')) {
+      d.addEventListener('keydown', keyboardNav, true);
+    }
     if (getConfig('Thread Hiding')) {
       delform = $('form[name=delform]');
       d.addEventListener('DOMNodeInserted', stopPropagation, true);