From d8d08ada7b58876c6a5ea0f895e122a2ac60bd17 Mon Sep 17 00:00:00 2001
From: Christian Brabandt <cb@256bit.org>
Date: Tue, 9 Feb 2016 21:54:27 +0100
Subject: [PATCH] Make clickable buffers (only Neovim)

fixes #369
---
 autoload/airline/extensions/tabline/buffers.vim | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/autoload/airline/extensions/tabline/buffers.vim b/autoload/airline/extensions/tabline/buffers.vim
index 1f48cc9..11d3f68 100644
--- a/autoload/airline/extensions/tabline/buffers.vim
+++ b/autoload/airline/extensions/tabline/buffers.vim
@@ -71,6 +71,10 @@ function! airline#extensions#tabline#buffers#get()
       let s:current_modified = (group == 'airline_tabmod') ? 1 : 0
     endif
 
+    " Neovim feature: Have clickable buffers
+    if has("tablineat")
+      call b.add_raw('%'.nr.'@airline#extensions#tabline#buffers#switchbuf@')
+    endif
     if s:buffer_idx_mode
       if len(s:number_map) > 0
         call b.add_section(group, s:spc . get(s:number_map, l:index, '') . '%(%{airline#extensions#tabline#get_buffer_name('.nr.')}%)' . s:spc)
@@ -81,6 +85,9 @@ function! airline#extensions#tabline#buffers#get()
     else
       call b.add_section(group, s:spc.'%(%{airline#extensions#tabline#get_buffer_name('.nr.')}%)'.s:spc)
     endif
+    if has("tablineat")
+      call b.add_raw('%X')
+    endif
   endfor
 
   call b.add_section('airline_tabfill', '')
@@ -188,3 +195,11 @@ function s:map_keys()
     noremap <silent> <Plug>AirlineSelectNextTab :<C-u>call <SID>jump_to_tab(v:count1)<CR>
   endif
 endfunction
+
+function airline#extensions#tabline#buffers#switchbuf(minwid, clicks, button, modifiers) abort
+    " Run the following code only on a single left mouse button click without modifiers pressed
+    " works only in recent NeoVim with has('tablineat')
+    if a:clicks == 1 && a:button is# 'l' && a:modifiers !~# '[^ ]'
+        sil execute 'buffer' a:minwid
+    endif
+endfunction