From 3e63150293601dc486f5aa94aca3a34f5dba775e Mon Sep 17 00:00:00 2001
From: przepompownia <przepompownia@users.noreply.github.com>
Date: Tue, 21 Nov 2023 23:19:01 +0100
Subject: [PATCH] feat(bqf.qfwin.handler): allow use function as opener

For example
```lua
local function tabDropHandler()
  require('bqf.qfwin.handler').open(true, function(fname)
    customTabDrop(fname))
  end)
end
local function configureWindow()
  vim.keymap.set({'n'}, '<CR>', tabDropHandler, {buffer = true})
end

local augroup = vim.api.nvim_create_augroup ('BqfMappings', {clear = true })
vim.api.nvim_create_autocmd ('FileType', {
  group = augroup,
  pattern = 'qf',
  callback = configureWindow,
})
```

https://github.com/kevinhwang91/nvim-bqf/issues/45
---
 lua/bqf/qfwin/handler.lua | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/lua/bqf/qfwin/handler.lua b/lua/bqf/qfwin/handler.lua
index 11ca731..971f4d2 100644
--- a/lua/bqf/qfwin/handler.lua
+++ b/lua/bqf/qfwin/handler.lua
@@ -227,13 +227,18 @@ end
 
 ---
 ---@param close boolean
----@param jumpCmd boolean
+---@param jumpCmd string|fun(fname: string)
 ---@param qwinid number
 ---@param idx number
 function M.open(close, jumpCmd, qwinid, idx)
     doEdit(qwinid, idx, close, function(bufnr)
-        if jumpCmd then
-            local fname = fn.fnameescape(api.nvim_buf_get_name(bufnr))
+        if not jumpCmd then
+            api.nvim_set_current_buf(bufnr)
+            return
+        end
+
+        local fname = fn.fnameescape(api.nvim_buf_get_name(bufnr))
+        if type(jumpCmd) == 'string' then
             if jumpCmd == 'drop' then
                 local bufInfo = fn.getbufinfo(bufnr)
                 if fname == '' or #bufInfo == 1 and #bufInfo[1].windows == 0 then
@@ -242,8 +247,8 @@ function M.open(close, jumpCmd, qwinid, idx)
                 end
             end
             cmd(('%s %s'):format(jumpCmd, fname))
-        else
-            api.nvim_set_current_buf(bufnr)
+        elseif type(jumpCmd) == 'function' then
+            pcall(jumpCmd, fname)
         end
     end)
 end