Lua Scripting - Dialogs-InputListBox - Template

[advice2020]

Eventually I would like to get into possibly being able to create some list based dialogs using Lua Scripting - Dialogs.InputListBox.

I was wondering if anyone would be willing to provide a basic "template" so that I could just be able to edit the items I would like to appear in the list.

I am trying to think of all the different "types" of actions that these lists can make use of (I am aware that many items I will mention below will be probably be similar actions because they are all commands, but will mention regardless just in case)
-Go to path location
-Open a file
-Run a DC internal command
-Run a Lua script command
-Linux based command
-Any other actions that anyone can think to add to this template that could be useful to know about

I will provide a basic example below of what this "template" list could look like

---

TEMPLATE
-Go to $HOME/Downloads

-Open file $HOME/Documents/apple.txt

-Run DC command
cm_RenameOnly
Parameters: extensions=no
Controls: Files Panel

-Run Lua script such as
Parameters: $HOME/Documents/lua/create-text-file-from-clip.lua
Parameters: %"0%Ds

-Run Linux based command
Command: cm_ExecuteScript
Parameters: $HOME/Documents/ffmpeg.sh
Parameters: %p

-Any other useful "types" of actions

---

Thank you to anyone who reads this and anyone willing to provide a basic template for me to be able to edit.

[j2969719]

create the functions that will do all the work eg

Go to $HOME/Downloads

function my_cool_funk1(param)
  DC.ExecuteCommand("cm_ChangeDir", param)
end

Open file $HOME/Documents/apple.txt

function my_cool_funk2(param)
  DC.ExecuteCommand("cm_ShellExecute", param)
end

cm_RenameOnly
Parameters: extensions=no

function my_cool_funk3()
  DC.ExecuteCommand("cm_RenameOnly", "extensions=no")
end

Run Lua script such as
Parameters: $HOME/Documents/lua/create-text-file-from-clip.lua
Parameters: %"0%Ds

function my_cool_funk4()
  local script = os.getenv("HOME") .. "/Documents/lua/create-text-file-from-clip.lua"
  local param1 = DC.ExpandVar('%"0%Ds')
  DC.ExecuteCommand("cm_ExecuteScript", script, param1)
end

Run Linux based command
$HOME/Documents/ffmpeg.sh
Parameters: %p

function my_cool_funk5()
  local script = os.getenv("HOME") .. "/Documents/ffmpeg.sh"
  local param1 = DC.ExpandVar('%p')
  SysUtils.Execute(script .. " " .. param1)
end

place the text to be displayed and the these functions into a table

local stuff = {
  {label = "open dir",  run = my_cool_funk1,           param = "$HOME"},
  {label = "open file", run = my_cool_funk2, param = "/etc/os-release"},
  {label = "remame",    run = my_cool_funk3                           },
  {label = "lua",       run = my_cool_funk4                           },
  {label = "exec",      run = my_cool_funk5                           },
}

prepare the variables for the listbox

local listbox_title = "my cool dialog title"
local listbox_message = "my cool dialog message"
local listbox_default = nil
local listbox_items = {}

for i = 1, #stuff do
  listbox_items[i] = stuff[i].label
end

bonus: read the last used item from a tempfile

local cache_file = os.getenv("HOME") .. "/.cache/" .. debug.getinfo(1, "S").short_src:match("[^/\\]+$") .. ".sav"
local file = io.open(cache_file, "r")
if file then
  listbox_default = file:read("*line")
  file:close()
end

display the listbox and call the appropriate function if an item is selected

item, index = Dialogs.InputListBox(listbox_title, listbox_message, listbox_items, listbox_default)

if item then
  stuff[index].run(stuff[index].param)

bonus: save item to a tempfile so that it becomes the default the next time

  local file = io.open(cache_file, "w")
  if file then
    file:write(item .. '\n')
    file:close()
  end

ENDE

end

[Skif-off]

About environment variables, maybe something like

local sPath = "~/.config/doublecmd/ignorelist.txt"

if string.sub(sPath, 1, 2) == "~/" then
  sPath = "$HOME/" .. string.sub(sPath, 3, -1)
end
sPath = SysUtils.ExpandEnv(sPath)

Cross-platform (in theory).