1 files changed, 25 insertions, 0 deletions

diff --git a/hyperkitty/static/js/hyperkitty.js b/hyperkitty/static/js/hyperkitty.js
index 5fcb539..4b64b91 100644
--- a/hyperkitty/static/js/hyperkitty.js
+++ b/hyperkitty/static/js/hyperkitty.js
@@ -263,6 +263,31 @@ function setup_replies(baseElem) {
     }).change();
 }
 
+function setup_navkeys() {
+    var current_index;
+    function scroll(e) {
+        var inc;
+        var unreads = $(".email.unread");
+        if (unreads.length == 0) { return; }
+        if (e.data == "j") { inc = 1; }
+        if (e.data == "k") { inc = -1; }
+        if (typeof current_index == "undefined") {
+            if (inc == 1) { current_index = -1; }
+            if (inc == -1) { current_index = unreads.length; }
+        }
+        current_index = current_index + inc;
+        if (current_index < 0) { current_index = unreads.length - 1; }
+        if (current_index >= unreads.length) { current_index = 0; }
+        // compensate for the fixed banner at the top
+        var target = unreads.eq(current_index).offset().top - 70;
+        $("html,body").animate({
+            scrollTop: target
+        }, 500);
+    }
+    $(document).bind("keydown", "j", scroll);
+    $(document).bind("keydown", "k", scroll);
+}
+
 
 /*
  * Recent activity graph