refactor!: remove vimscript part of the plugin

BREAKING CHANGE: The plugin is now written in Lua and the vimscript part is removed.

All configuration must be done using Lua.

This change also allows configuring two values that were not possible to
configure before:
- floating_window_scaling_factor
- yazi_floating_window_winblend

README.md

@@ -78,6 +78,12 @@ Using lazy.nvim:
       -- when yazi was successfully closed
       yazi_closed_successfully = function(chosen_file) end,
     },
+
+    -- the floating window scaling factor. 1 means 100%, 0.9 means 90%, etc.
+    floating_window_scaling_factor = 0.9,
+
+    -- the winblend value for the floating window. See :h winblend
+    yazi_floating_window_winblend = 0,
   },
 }
 ```

lua/yazi.lua

@@ -21,7 +21,7 @@ function M.yazi(path)
 
   local prev_win = vim.api.nvim_get_current_win()
 
-  local win, buffer = window.open_floating_window()
+  local win, buffer = window.open_floating_window(M.config)
 
   os.remove(M.config.chosen_file_path)
   local cmd = string.format(

lua/yazi/config.lua

@@ -16,6 +16,9 @@ function M.default()
       ---@diagnostic disable-next-line: unused-local
       yazi_closed_successfully = function(_chosen_file) end,
     },
+
+    floating_window_scaling_factor = 0.9,
+    yazi_floating_window_winblend = 0,
   }
 end
 

lua/yazi/types.lua

@@ -4,6 +4,8 @@
 ---@field public events_file_path? string "the path to a temporary file that will be created by yazi to store events"
 ---@field public open_file_function? fun(chosen_file: string): nil "a function that will be called when a file is chosen in yazi"
 ---@field public hooks? YaziConfigHooks
+---@field public floating_window_scaling_factor? float "the scaling factor for the floating window. 1 means 100%, 0.9 means 90%, etc."
+---@field public yazi_floating_window_winblend? float "the winblend value for the floating window. See :h winblend"
 
 ---@class YaziConfigHooks
 ---@field public yazi_opened? fun(preselected_path: string | nil): nil

lua/yazi/window.lua

@@ -1,32 +1,25 @@
 local M = {}
 
 --- open floating window with nice borders
+---@param config YaziConfig
 ---@return number | nil, number | nil
-function M.open_floating_window()
-  local floating_window_scaling_factor =
-    vim.g.yazi_floating_window_scaling_factor
-
-  -- Why is this required?
-  -- vim.g.yazi_floating_window_scaling_factor returns different types if the value is an integer or float
-  if type(floating_window_scaling_factor) == 'table' then
-    floating_window_scaling_factor = floating_window_scaling_factor[false]
-  end
-
+function M.open_floating_window(config)
   local status, plenary = pcall(require, 'plenary.window.float')
   if
     status
     and vim.g.yazi_floating_window_use_plenary
     and vim.g.yazi_floating_window_use_plenary ~= 0
   then
     plenary.percentage_range_window(
-      floating_window_scaling_factor,
-      floating_window_scaling_factor
+      config.floating_window_scaling_factor,
+      config.floating_window_scaling_factor
     )
     return
   end
 
-  local height = math.ceil(vim.o.lines * floating_window_scaling_factor) - 1
-  local width = math.ceil(vim.o.columns * floating_window_scaling_factor)
+  local height = math.ceil(vim.o.lines * config.floating_window_scaling_factor)
+    - 1
+  local width = math.ceil(vim.o.columns * config.floating_window_scaling_factor)
 
   local row = math.ceil(vim.o.lines - height) / 2
   local col = math.ceil(vim.o.columns - width) / 2
@@ -86,7 +79,7 @@ function M.open_floating_window()
   vim.cmd('setlocal nocursorcolumn')
   vim.api.nvim_set_hl(0, 'YaziFloat', { link = 'Normal', default = true })
   vim.cmd('setlocal winhl=NormalFloat:YaziFloat')
-  vim.cmd('set winblend=' .. vim.g.yazi_floating_window_winblend)
+  vim.cmd('set winblend=' .. config.yazi_floating_window_winblend)
 
   -- use autocommand to ensure that the border_buffer closes at the same time as the main buffer
   vim.cmd("autocmd WinLeave <buffer> silent! execute 'hide'")