From 644eb26d11d77327885c6298a47bd7af0854ffb4 Mon Sep 17 00:00:00 2001
From: Dinh Nhu Tan <nhutan2001@gmail.com>
Date: Sat, 20 Jan 2024 09:36:34 +0700
Subject: [PATCH] fix: update position of preview window

---
 lua/dashboard/preview.lua      |  1 +
 lua/dashboard/theme/header.lua |  2 +-
 lua/dashboard/theme/hyper.lua  | 10 +++++++++-
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/lua/dashboard/preview.lua b/lua/dashboard/preview.lua
index 8a3076e5..da3a3ed9 100644
--- a/lua/dashboard/preview.lua
+++ b/lua/dashboard/preview.lua
@@ -133,6 +133,7 @@ function view:open_preview(opt)
   })
 
   self:preview_events()
+  return self.preview_bufnr, self.preview_winid
 end
 
 return view
diff --git a/lua/dashboard/theme/header.lua b/lua/dashboard/theme/header.lua
index 5ffbbc07..88277ae8 100644
--- a/lua/dashboard/theme/header.lua
+++ b/lua/dashboard/theme/header.lua
@@ -123,7 +123,7 @@ local function generate_header(config)
   local empty_table = utils.generate_empty_table(config.file_height + 4)
   api.nvim_buf_set_lines(config.bufnr, 0, -1, false, utils.center_align(empty_table))
   local preview = require('dashboard.preview')
-  preview:open_preview({
+  return preview:open_preview({
     width = config.file_width,
     height = config.file_height,
     cmd = config.command .. ' ' .. config.file_path,
diff --git a/lua/dashboard/theme/hyper.lua b/lua/dashboard/theme/hyper.lua
index f2d4350d..32c1b018 100644
--- a/lua/dashboard/theme/hyper.lua
+++ b/lua/dashboard/theme/hyper.lua
@@ -485,7 +485,7 @@ local function theme_instance(config)
     if config.disable_move then
       utils.disable_move_key(config.bufnr)
     end
-    require('dashboard.theme.header').generate_header(config)
+    local _, preview_winid = require('dashboard.theme.header').generate_header(config)
     gen_shortcut(config)
     load_packages(config)
     gen_center(plist, config)
@@ -499,6 +499,14 @@ local function theme_instance(config)
     api.nvim_buf_set_lines(config.bufnr, 0, 0, false, fill)
     vim.bo[config.bufnr].modifiable = false
     vim.bo[config.bufnr].modified = false
+
+    -- re-set the position of preview window with top padding = size
+    if preview_winid then
+      local winconfig = api.nvim_win_get_config(preview_winid)
+      winconfig.row = size + 2
+      api.nvim_win_set_config(preview_winid, winconfig)
+    end
+
     --defer until next event loop
     vim.schedule(function()
       api.nvim_exec_autocmds('User', {