From 6e2e51b154d526c1ab0b506bb2110b45421b7a06 Mon Sep 17 00:00:00 2001
From: w0rp <devw0rp@gmail.com>
Date: Sat, 29 Aug 2020 17:27:53 +0100
Subject: [PATCH] Fix #2971 - Disable automatic completion while 'paste' is
 active

---
 autoload/ale/completion.vim | 11 +++++++----
 doc/ale.txt                 |  6 ++++++
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/autoload/ale/completion.vim b/autoload/ale/completion.vim
index f6a0c350..5035bbf0 100644
--- a/autoload/ale/completion.vim
+++ b/autoload/ale/completion.vim
@@ -324,6 +324,12 @@ function! ale#completion#AutomaticOmniFunc(findstart, base) abort
     endif
 endfunction
 
+function! s:OpenCompletionMenu(...) abort
+    if !&l:paste
+        call ale#util#FeedKeys("\<Plug>(ale_show_completion_menu)")
+    endif
+endfunction
+
 function! ale#completion#Show(result) abort
     if ale#util#Mode() isnot# 'i'
         return
@@ -344,10 +350,7 @@ function! ale#completion#Show(result) abort
     let l:source = get(get(b:, 'ale_completion_info', {}), 'source', '')
 
     if l:source is# 'ale-automatic' || l:source is# 'ale-manual'
-        call timer_start(
-        \   0,
-        \   {-> ale#util#FeedKeys("\<Plug>(ale_show_completion_menu)")}
-        \)
+        call timer_start(0, function('s:OpenCompletionMenu'))
     endif
 
     if l:source is# 'ale-callback'
diff --git a/doc/ale.txt b/doc/ale.txt
index 5ec542f9..be49b6e9 100644
--- a/doc/ale.txt
+++ b/doc/ale.txt
@@ -463,6 +463,9 @@ is loaded. The delay for completion can be configured with
 |g:ale_completion_delay|. This setting should not be enabled if you wish to
 use ALE as a completion source for other plugins.
 
+ALE automatic completion will not work when 'paste' is active. Only set
+'paste' when you are copy and pasting text into your buffers.
+
 ALE provides an 'omnifunc' function |ale#completion#OmniFunc| for triggering
 completion manually with CTRL-X CTRL-O. |i_CTRL-X_CTRL-O| >
 
@@ -729,6 +732,9 @@ g:ale_completion_enabled                             *g:ale_completion_enabled*
   This setting should not be enabled if you wish to use ALE as a completion
   source for other completion plugins.
 
+  ALE automatic completion will not work when 'paste' is active. Only set
+  'paste' when you are copy and pasting text into your buffers.
+
   A buffer-local version of this setting `b:ale_completion_enabled` can be set
   to `0` to disable ALE's automatic completion support for a single buffer.
   ALE's completion support must be enabled globally to be enabled locally.