From 9db8f638dbf4dd7c344bc4b9350c04e30641068a Mon Sep 17 00:00:00 2001
From: Andy Stewart <boss@airbladesoftware.com>
Date: Mon, 16 May 2016 12:21:06 +0100
Subject: [PATCH] Make hunk summary window-aware.

Closes #331.
---
 autoload/gitgutter/hunk.vim | 19 +++++++++++--------
 plugin/gitgutter.vim        |  8 ++++----
 2 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/autoload/gitgutter/hunk.vim b/autoload/gitgutter/hunk.vim
index cbb2477..a17f4f8 100644
--- a/autoload/gitgutter/hunk.vim
+++ b/autoload/gitgutter/hunk.vim
@@ -8,8 +8,8 @@ function! gitgutter#hunk#hunks() abort
   return s:hunks
 endfunction
 
-function! gitgutter#hunk#summary() abort
-  return getbufvar(gitgutter#utility#bufnr(), 'gitgutter_summary', [0,0,0])
+function! gitgutter#hunk#summary(bufnr) abort
+  return getbufvar(a:bufnr, 'gitgutter_summary', [0,0,0])
 endfunction
 
 function! gitgutter#hunk#reset() abort
@@ -17,21 +17,24 @@ function! gitgutter#hunk#reset() abort
 endfunction
 
 function! gitgutter#hunk#increment_lines_added(count) abort
-  let summary = gitgutter#hunk#summary()
+  let bufnr = gitgutter#utility#bufnr()
+  let summary = gitgutter#hunk#summary(bufnr)
   let summary[0] += a:count
-  call setbufvar(gitgutter#utility#bufnr(), 'gitgutter_summary', summary)
+  call setbufvar(bufnr, 'gitgutter_summary', summary)
 endfunction
 
 function! gitgutter#hunk#increment_lines_modified(count) abort
-  let summary = gitgutter#hunk#summary()
+  let bufnr = gitgutter#utility#bufnr()
+  let summary = gitgutter#hunk#summary(bufnr)
   let summary[1] += a:count
-  call setbufvar(gitgutter#utility#bufnr(), 'gitgutter_summary', summary)
+  call setbufvar(bufnr, 'gitgutter_summary', summary)
 endfunction
 
 function! gitgutter#hunk#increment_lines_removed(count) abort
-  let summary = gitgutter#hunk#summary()
+  let bufnr = gitgutter#utility#bufnr()
+  let summary = gitgutter#hunk#summary(bufnr)
   let summary[2] += a:count
-  call setbufvar(gitgutter#utility#bufnr(), 'gitgutter_summary', summary)
+  call setbufvar(bufnr, 'gitgutter_summary', summary)
 endfunction
 
 function! gitgutter#hunk#next_hunk(count) abort
diff --git a/plugin/gitgutter.vim b/plugin/gitgutter.vim
index db7ac44..af67de4 100644
--- a/plugin/gitgutter.vim
+++ b/plugin/gitgutter.vim
@@ -123,11 +123,11 @@ function! GitGutterGetHunks()
   return gitgutter#utility#is_active() ? gitgutter#hunk#hunks() : []
 endfunction
 
-" Returns an array that contains a summary of the current hunk status.
-" The format is [ added, modified, removed ], where each value represents
-" the number of lines added/modified/removed respectively.
+" Returns an array that contains a summary of the hunk status for the current
+" window.  The format is [ added, modified, removed ], where each value
+" represents the number of lines added/modified/removed respectively.
 function! GitGutterGetHunkSummary()
-  return gitgutter#hunk#summary()
+  return gitgutter#hunk#summary(winbufnr(0))
 endfunction
 
 " }}}