select tab as rotations

src/background/index.js

@@ -55,9 +55,9 @@ const normalizeUrl = (string) => {
   }
 }
 
-const cmdBuffer = (arg) => {
+const cmdBuffer = (sender, arg) => {
   if (isNaN(arg)) {
-    return tabs.selectByKeyword(arg);
+    return tabs.selectByKeyword(sender.tab, arg);
   } else {
     let index = parseInt(arg, 10) - 1;
     return tabs.selectAt(index);
@@ -73,7 +73,7 @@ const cmdEnterHandle = (request, sender) => {
     return browser.tabs.create({ url: normalizeUrl(words[1]) });
   case 'b':
   case 'buffer':
-    return cmdBuffer(words[1]);
+    return cmdBuffer(sender, words[1]);
   }
   throw new Error(words[0] + ' command is not defined');
 };

src/background/tabs.js

@@ -31,7 +31,7 @@ const selectAt = (index) => {
   });
 };
 
-const selectByKeyword = (keyword) => {
+const selectByKeyword = (current, keyword) => {
   return browser.tabs.query({ currentWindow: true }).then((tabs) => {
     let matched = tabs.filter((t) => {
       return t.url.includes(keyword) || t.title.includes(keyword)
@@ -39,10 +39,12 @@ const selectByKeyword = (keyword) => {
 
     if (matched.length == 0) {
       throw new RangeError('No matching buffer for ' + keyword);
-    } else if (matched.length >= 2) {
-      throw new RangeError('More than one match for ' + keyword);
     }
-
+    for (let tab of matched) {
+      if (tab.index > current.index) {
+        return browser.tabs.update(tab.id, { active: true });
+      }
+    }
     return browser.tabs.update(matched[0].id, { active: true });
   });
 }