From 4cbabcb4015c549f9a0f2842ea61ed77b22f7133 Mon Sep 17 00:00:00 2001
From: Shuanglei Tao <tsl0922@gmail.com>
Date: Mon, 15 Jan 2024 21:52:17 +0800
Subject: [PATCH] show more playlist with uosc

---
 README.md        |  1 +
 lua/dyn_menu.lua | 25 ++++++++++++++++++++-----
 2 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index eb54a36..036bbd5 100644
--- a/README.md
+++ b/README.md
@@ -78,6 +78,7 @@ MBTN_RIGHT script-message-to menu show
 ### ~~/script-opts/dyn_menu.conf
 
 - `max_title_length=80`: Limits the title length in dynamic submenu, set to 0 to disable.
+- `max_playlist_items=20`: Limit the playlist items in submenu, set to 0 to disable.
 
 ## Scripting
 
diff --git a/lua/dyn_menu.lua b/lua/dyn_menu.lua
index f8af223..a926a81 100644
--- a/lua/dyn_menu.lua
+++ b/lua/dyn_menu.lua
@@ -7,14 +7,16 @@ local msg = require('mp.msg')
 
 -- user options
 local o = {
-    max_title_length = 80,        -- limit the title length, set to 0 to disable.
+    max_title_length = 80,   -- limit the title length, set to 0 to disable.
+    max_playlist_items = 20, -- limit the playlist items in submenu, set to 0 to disable.
 }
 opts.read_options(o)
 
-local menu_prop = 'user-data/menu/items'
-local menu_items = mp.get_property_native(menu_prop, {})
-local menu_items_dirty = false
-local dyn_menus = {}
+local menu_prop = 'user-data/menu/items'                 -- menu data property
+local menu_items = mp.get_property_native(menu_prop, {}) -- raw menu data
+local menu_items_dirty = false                           -- menu data dirty flag
+local dyn_menus = {}                                     -- dynamic menu items
+local has_uosc = false                                   -- uosc installed flag
 
 -- escape codec name to make it more readable
 local function escape_codec(str)
@@ -326,12 +328,20 @@ local function update_playlist_menu(menu)
         if not playlist or #playlist == 0 then return end
 
         for id, item in ipairs(playlist) do
+            if o.max_playlist_items > 0 and id > o.max_playlist_items then break end
             submenu[#submenu + 1] = {
                 title = build_playlist_title(item, id - 1),
                 cmd = string.format('playlist-play-index %d', id - 1),
                 state = item.current and { 'checked' } or {},
             }
         end
+
+        if o.max_playlist_items > 0 and #playlist > o.max_playlist_items then
+            submenu[#submenu + 1] = {
+                title = string.format('...\t[%d]', #playlist - o.max_playlist_items),
+                cmd = has_uosc and 'script-message-to uosc playlist' or 'ignore',
+            }
+        end
     end
 
     observe_property(menu, 'playlist', 'native', playlist_cb)
@@ -493,6 +503,11 @@ mp.register_script_message('update', function(keyword, json)
     menu_items_dirty = true
 end)
 
+-- detect uosc installation
+mp.register_script_message('uosc-version', function()
+    has_uosc = true
+end)
+
 -- commit menu items when idle, this reduces the update frequency
 mp.register_idle(function()
     if menu_items_dirty then