Module: Rvim::Lua::Keymap

Defined in:
lib/rvim/lua/keymap.rb

Overview

vim.keymap.set(mode, lhs, rhs, opts) vim.keymap.del(mode, lhs)

mode: ‘n’/‘i’/‘v’/‘x’/‘o’/‘c’/” (or array) rhs: string ex command, or function (Lua callback held in registry) opts: { silent = bool, noremap = bool, … }

Constant Summary collapse

MODE_MAP = 
{
  'n' => :normal, 'i' => :insert,
  'v' => :visual, 'x' => :visual,
  'o' => :op_pending, 'c' => :cmdline,
  '' => %i[normal visual op_pending],
}.freeze

Class Method Summary collapse

Class Method Details

.install(state, editor, runtime) ⇒ Object 



21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
 
# File 'lib/rvim/lua/keymap.rb', line 21

def install(state, editor, runtime)
  state.function '_rvim_keymap_set' do |mode_arg, lhs, rhs, opts|
    modes = resolve_modes(mode_arg)
    opts_h = case opts
             when Hash then opts
             when nil then {}
             else (opts.respond_to?(:to_h) ? opts.to_h : {})
             end
    silent = opts_h['silent'] == true
    recursive = opts_h['noremap'] != true
    expanded_lhs = Rvim::Keymap.expand(lhs.to_s, leader: editor.mapleader)

    if rhs.is_a?(Rufus::Lua::Function)
      cb_lua = rhs
      cb = -> { cb_lua.call }
      editor.keymap.add(modes, expanded_lhs, '', recursive: recursive, silent: silent, callback: cb)
    else
      expanded_rhs = Rvim::Keymap.expand(rhs.to_s, leader: editor.mapleader)
      editor.keymap.add(modes, expanded_lhs, expanded_rhs, recursive: recursive, silent: silent)
    end
  end

  state.function '_rvim_keymap_del' do |mode_arg, lhs|
    modes = resolve_modes(mode_arg)
    expanded_lhs = Rvim::Keymap.expand(lhs.to_s, leader: editor.mapleader)
    editor.keymap.remove(modes, expanded_lhs)
  end

  state.eval(<<~LUA)
    vim.keymap = {
      set = function(mode, lhs, rhs, opts) _rvim_keymap_set(mode, lhs, rhs, opts) end,
      del = function(mode, lhs) _rvim_keymap_del(mode, lhs) end,
    }
  LUA
end

.resolve_modes(arg) ⇒ Object 



57
58
59
60
61
62
63
64
65
66
 
# File 'lib/rvim/lua/keymap.rb', line 57

def resolve_modes(arg)
  if arg.respond_to?(:to_h)
    values = arg.to_h.values
    values.flat_map { |m| MODE_MAP[m.to_s] || [] }.compact.uniq
  elsif arg.is_a?(Array)
    arg.flat_map { |m| MODE_MAP[m.to_s] || [] }.compact.uniq
  else
    MODE_MAP[arg.to_s] || []
  end
end