逆向きのコマンドも追加

git-svn-id: http://svn.coderepos.org/share/lang/javascript/vimperator-plugins/trunk@17907 d0d07461-0603-4401-acd4-de1884942a52

1 files changed, 18 insertions, 5 deletions

diff --git a/scroll_div.js b/scroll_div.js
index 3eb57cf..7d71310 100644
--- a/scroll_div.js
+++ b/scroll_div.js
@@ -52,10 +52,12 @@
   }
 
   // スクロール対象を変更
-  function shiftScrollElement () {
+  function shiftScrollElement (n) {
     let idx = content.document.__div_scroller_index || 0;
     let es = scrollableElements();
-    idx++;
+    idx += (n || 1);
+    if (idx < 0)
+      idx = es.length - 1;
     if (idx >= es.length)
       idx = 0;
     content.document.__div_scroller_index = idx;
@@ -89,13 +91,24 @@
 
   liberator.mappings.addUserMap(
     [liberator.modes.NORMAL], 
+    ['<Leader>k'],
+    'Scroll up',
+    function () scroll(-30)
+  );
+
+  liberator.mappings.addUserMap(
+    [liberator.modes.NORMAL], 
     [']d'],
     'Shift Scroll Element',
-    function () shiftScrollElement()
+    function () shiftScrollElement(1)
   );
 
-  scroll(100);
-
+  liberator.mappings.addUserMap(
+    [liberator.modes.NORMAL], 
+    ['[d'],
+    'Shift Scroll Element',
+    function () shiftScrollElement(-1)
+  );
 
 
 })();