From 204f38c94764568242750d01bd2ea6870b97a62b Mon Sep 17 00:00:00 2001
From: Oliver Hartmann <oliver.hartmann@continental-corporation.com>
Date: Mon, 4 Apr 2022 14:46:22 +0200
Subject: [PATCH] Don't show diagnostic windows if there is already a floating
 window

---
 lua/setup/lspinstall.lua | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/lua/setup/lspinstall.lua b/lua/setup/lspinstall.lua
index 977c111..200eb4c 100644
--- a/lua/setup/lspinstall.lua
+++ b/lua/setup/lspinstall.lua
@@ -18,6 +18,15 @@ capabilities.textDocument.completion.completionItem.resolveSupport = {
   },
 }
 
+OpenDiagFloat = function ()
+  for _, winid in pairs(vim.api.nvim_tabpage_list_wins(0)) do
+   if vim.api.nvim_win_get_config(winid).zindex then
+     return
+   end
+  end
+  vim.diagnostic.open_float({focusable = false})
+end
+
 local on_attach = function(client, bufnr)
   local function buf_set_keymap(...)
     vim.api.nvim_buf_set_keymap(bufnr, ...)
@@ -51,7 +60,7 @@ local on_attach = function(client, bufnr)
   buf_set_keymap('n', '<space>v', '<cmd>Telescope diagnostics bufnr=0<cr>', opts)
   buf_set_keymap('n', '<A-o>', ':ClangdSwitchSourceHeader<CR>', opts)
 
-  vim.cmd([[autocmd CursorHold <buffer> lua vim.diagnostic.open_float({focusable = false})]])
+  vim.cmd([[autocmd CursorHold <buffer> lua OpenDiagFloat()]])
 
   -- Set some keybinds conditional on server capabilities
   if client.resolved_capabilities.document_formatting then