From 0ff697eb408c2045018796ad1ba13c1714a348a1 Mon Sep 17 00:00:00 2001
From: Jason Franklin <j_fra@fastmail.us>
Date: Fri, 22 Dec 2017 10:28:31 -0500
Subject: [PATCH] Implement the "isHiddenUnder()" method for Path

---
 autoload/nerdtree/ui_glue.vim | 16 +++++-----------
 lib/nerdtree/path.vim         | 19 +++++++++++++++++++
 2 files changed, 24 insertions(+), 11 deletions(-)

diff --git a/autoload/nerdtree/ui_glue.vim b/autoload/nerdtree/ui_glue.vim
index e2dc96a..e184703 100644
--- a/autoload/nerdtree/ui_glue.vim
+++ b/autoload/nerdtree/ui_glue.vim
@@ -277,11 +277,6 @@ function! s:findAndRevealPath(pathStr)
         return
     endtry
 
-    if l:pathObj.isUnixHiddenPath()
-        let l:showHidden = g:NERDTreeShowHidden
-        let g:NERDTreeShowHidden = 1
-    endif
-
     if !g:NERDTree.ExistsForTab()
         try
             let l:cwd = g:NERDTreePath.New(getcwd())
@@ -298,19 +293,18 @@ function! s:findAndRevealPath(pathStr)
     else
         NERDTreeFocus
 
-        if !l:pathObj.isUnder(g:NERDTreeFileNode.GetRootForTab().path)
-            call b:NERDTree.ui.setShowHidden(g:NERDTreeShowHidden)
+        if !l:pathObj.isUnder(b:NERDTree.root.path)
             call s:chRoot(g:NERDTreeDirNode.New(l:pathObj.getParent(), b:NERDTree))
         endif
     endif
 
+    if l:pathObj.isHiddenUnder(b:NERDTree.root.path)
+        call b:NERDTree.ui.setShowHidden(1)
+    endif
+
     let l:node = b:NERDTree.root.reveal(l:pathObj)
     call b:NERDTree.render()
     call l:node.putCursorHere(1, 0)
-
-    if l:pathObj.isUnixHiddenFile()
-        let g:NERDTreeShowHidden = l:showHidden
-    endif
 endfunction
 
 "FUNCTION: s:handleLeftClick() {{{1
diff --git a/lib/nerdtree/path.vim b/lib/nerdtree/path.vim
index 3e7c913..b4916b4 100644
--- a/lib/nerdtree/path.vim
+++ b/lib/nerdtree/path.vim
@@ -405,6 +405,25 @@ function! s:Path.getSortKey()
     return self._sortKey
 endfunction
 
+" FUNCTION: Path.isHiddenUnder(path) {{{1
+function! s:Path.isHiddenUnder(path)
+    
+    if !self.isUnder(a:path)
+        return 0
+    endif
+
+    let l:startIndex = len(a:path.pathSegments)
+    let l:segments = self.pathSegments[l:startIndex:]
+
+    for l:segment in l:segments
+        
+        if l:segment =~# '^\.'
+            return 1
+        endif
+    endfor
+
+    return 0
+endfunction
 
 " FUNCTION: Path.isUnixHiddenFile() {{{1
 " check for unix hidden files