refactor menuWillShow

lib/browser/api/menu.js

@@ -7,7 +7,7 @@ const bindings = process.atomBinding('menu')
 
 const {Menu} = bindings
 let applicationMenu = null
-let nextGroupId = 0
+let groupIdIndex = 0
 
 Object.setPrototypeOf(Menu.prototype, EventEmitter.prototype)
 
@@ -44,23 +44,10 @@ Menu.prototype._init = function () {
       command.click(event, BrowserWindow.getFocusedWindow(), webContents.getFocusedWebContents())
     },
     menuWillShow: () => {
-      // Make sure radio groups have at least one menu item seleted.
-      var checked, group, id, j, len, radioItem, ref1
-      ref1 = this.groupsMap
-      for (id in ref1) {
-        group = ref1[id]
-        checked = false
-        for (j = 0, len = group.length; j < len; j++) {
-          radioItem = group[j]
-          if (!radioItem.checked) {
-            continue
-          }
-          checked = true
-          break
-        }
-        if (!checked) {
-          v8Util.setHiddenValue(group[0], 'checked', true)
-        }
+      // Ensure radio groups have at least one menu item seleted
+      for (let id in this.groupsMap) {
+        let found = this.groupsMap[id].find(item => item.checked) || null
+        if (!found) v8Util.setHiddenValue(this.groupsMap[id][0], 'checked', true)
       }
     }
   }
@@ -251,29 +238,23 @@ Menu.buildFromTemplate = function (template) {
 
 // Search between separators to find a radio menu item and return its group id,
 function generateGroupId (items, pos) {
-  var i, item, j, k, ref1, ref2, ref3
+  let i, item
   if (pos > 0) {
-    for (i = j = ref1 = pos - 1; ref1 <= 0 ? j <= 0 : j >= 0; i = ref1 <= 0 ? ++j : --j) {
+    let asc, start
+    for (start = pos - 1, i = start, asc = start <= 0; asc ? i <= 0 : i >= 0; asc ? i++ : i--) {
       item = items[i]
-      if (item.type === 'radio') {
-        return item.groupId
-      }
-      if (item.type === 'separator') {
-        break
-      }
+      if (item.type === 'radio') { return item.groupId }
+      if (item.type === 'separator') { break }
     }
   } else if (pos < items.length) {
-    for (i = k = ref2 = pos, ref3 = items.length - 1; ref2 <= ref3 ? k <= ref3 : k >= ref3; i = ref2 <= ref3 ? ++k : --k) {
+    let asc1, end
+    for (i = pos, end = items.length - 1, asc1 = pos <= end; asc1 ? i <= end : i >= end; asc1 ? i++ : i--) {
       item = items[i]
-      if (item.type === 'radio') {
-        return item.groupId
-      }
-      if (item.type === 'separator') {
-        break
+      if (item.type === 'radio') { return item.groupId }
+      if (item.type === 'separator') { break }
     }
   }
-  }
-  return ++nextGroupId
+  return ++groupIdIndex
 }
 
 // Returns the index of item according to |id|.
@@ -284,6 +265,7 @@ function indexOfItemById (items, id) {
 }
 
 // Returns the index of where to insert the item according to |position|
+// cleaned up
 function indexToInsertByPosition (items, position) {
   if (!position) return items.length
 
@@ -315,8 +297,4 @@ function indexToInsertByPosition (items, position) {
   return (query in queries) ? queries[query](idx) : idx
 }
 
-function computeNewIndexOnQuery(idx, query) {
-
-}
-
 module.exports = Menu