add support for check type item

README.md

@@ -34,18 +34,24 @@ The menu syntax is similar to [mpv.net](https://github.com/mpvnet-player/mpv.net
  - `#@audio-devices`: audio device list
  - `#@playlist`: playlist
  - `#@profiles`: profile list
+ - use `#@prop:check` to check menu item if property type and value is:
+ - `boolean`: `true`
+ - `string`: not empty
+ - `number`: not zero
+ - `table`: not empty
+ - none of above: not `nil`
 - use `_` if no keybinding
 - use `ignore` if no command
 
 ```
 Ctrl+a show-text foobar #menu: Foo > Bar
 _ ignore #menu: -
-
-_ ignore #menu: Tracks #@tracks
-_ ignore #menu: Chapters #@chapters
-_ ignore #menu: Editions #@editions
-_ ignore  #menu: -
-_ ignore #menu: Audio Devices #@audio-devices
+_ ignore #menu: Tracks #@tracks
+_ ignore  #menu: Chapters #@chapters
+_ ignore  #menu: Editions #@editions
+_ ignore  #menu: -
+_ cycle mute  #menu: Audio > Mute #@mute:check
+_ ignore  #menu: Audio > Devices #@audio-devices
 ```
 
 Add a keybinding to trigger the menu (required):

lua/dyn_menu.lua

@@ -4,16 +4,19 @@
 -- #@keyword support for dynamic menu
 --
 -- supported keywords:
--- #@tracks: video/audio/sub tracks
--- #@tracks/video: video track list
--- #@tracks/audio: audio track list
--- #@tracks/sub: subtitle list
--- #@tracks/sub-secondary: subtitle list (secondary)
--- #@chapters: chapter list
--- #@editions: edition list
--- #@audio-devices: audio device list
--- #@playlist: playlist
--- #@profiles: profile list
+--
+-- #@tracks video/audio/sub tracks
+-- #@tracks/video video track list
+-- #@tracks/audio audio track list
+-- #@tracks/sub subtitle list
+-- #@tracks/sub-secondary subtitle list (secondary)
+-- #@chapters chapter list
+-- #@editions edition list
+-- #@audio-devices audio device list
+-- #@playlist playlist
+-- #@profiles profile list
+--
+-- #@prop:check check menu item based on property value
 
 local opts = require('mp.options')
 local utils = require('mp.utils')
@@ -309,8 +312,31 @@ local function update_profiles_menu(submenu)
  end)
 end
 
--- update dynamic menu item and handle submenu update
+-- handle #@prop:check
+function update_check_status(item, keyword)
+ local prop = keyword:match('^([%w-]+):check$')
+ if not prop then return false end
+
+ local function check(v)
+ local tp = type(v)
+ if tp == 'boolean' then return v end
+ if tp == 'string' then return v ~= '' end
+ if tp == 'number' then return v ~= 0 end
+ if tp == 'table' then return #v > 0 end
+ return v ~= nil
+ end
+ mp.observe_property(prop, 'native', function(name, value)
+ item.state = check(value) and { 'checked' } or {}
+ menu_items_dirty = true
+ end)
+
+ return true
+end
+
+-- update dynamic menu item and handle update
 local function dyn_menu_update(item, keyword)
+ if update_check_status(item, keyword) then return end
+
  item.type = 'submenu'
  item.submenu = {}
  item.cmd = nil