osc.lua: allow adding custom buttons

DOCS/interface-changes/osc-buttons.txt

@@ -2,3 +2,4 @@ change several OSC mouse bindings to select.lua functions
 add script-opts to configure what OSC buttons do when clicked
 remove `osc-playlist_osd` script-opt and behave as if it was off by default; `playlist_osd=yes` can be replicated with `osc-playlist_prev_mbtn_left_command=playlist-prev; show-text ${playlist} 3000` and `osc-playlist_next_mbtn_left_command=playlist-next; show-text ${playlist} 3000`
 remove `osc-chapters_osd` script-opt and behave as if it was off by default; `chapter_osd=yes` can be replicated with `osc-chapter_prev_mbtn_left_command=no-osd add chapter -1; show-text ${chapter-list} 3000` and `osc-chapter_next_mbtn_left_command=no-osd add chapter 1; show-text ${chapter-list} 3000`
+add script-opts to define custom buttons

DOCS/man/osc.rst

@@ -578,6 +578,21 @@ clicked. ``mbtn_mid`` commands are also triggered with ``shift+mbtn_left``.
 
 ``fullscreen_mbtn_right_command="cycle window-maximized"``
 
+Custom Buttons
+~~~~~~~~~~~~~~
+
+Additional script-opts are available to define custom buttons in ``bottombar``
+and ``topbar`` layouts.
+
+.. admonition:: Example to add loop and shuffle buttons
+
+    custom_button_1_content=🔁
+    custom_button_1_mbtn_left_command=cycle-values loop-file inf no
+    custom_button_1_mbtn_right_command=cycle-values loop-playlist inf no
+
+    custom_button_2_content=🔀
+    custom_button_2_mbtn_left_command=playlist-shuffle
+
 Script Commands
 ~~~~~~~~~~~~~~~
 

player/lua/osc.lua

@@ -119,6 +119,13 @@ local user_opts = {
     -- luacheck: pop
 }
 
+for i = 1, 99 do
+    user_opts["custom_button_" .. i .. "_content"] = ""
+    user_opts["custom_button_" .. i .. "_mbtn_left_command"] = ""
+    user_opts["custom_button_" .. i .. "_mbtn_mid_command"] = ""
+    user_opts["custom_button_" .. i .. "_mbtn_right_command"] = ""
+end
+
 local osc_param = { -- calculated by osc_init()
     playresy = 0,                           -- canvas size Y
     playresx = 0,                           -- canvas size X
@@ -144,6 +151,7 @@ local window_control_box_width = 80
 local layouts = {}
 local is_december = os.date("*t").month == 12
 local UNICODE_MINUS = string.char(0xe2, 0x88, 0x92)  -- UTF-8 for U+2212 MINUS SIGN
+local last_custom_button = 0
 
 local function osc_color_convert(color)
     return color:sub(6,7) .. color:sub(4,5) ..  color:sub(2,3)
@@ -1574,15 +1582,26 @@ local function bar_layout(direction)
 
     local t_l = geo.x + geo.w + padX
 
+    -- Custom buttons
+    local t_r = osc_geo.x + osc_geo.w
+
+    for i = last_custom_button, 1, -1 do
+        t_r = t_r - padX
+        geo = { x = t_r, y = geo.y, an = 6, w = geo.w, h = geo.h }
+        t_r = t_r - geo.w
+        lo = add_layout("custom_button_" .. i)
+        lo.geometry = geo
+        lo.style = osc_styles.vidtitleBar
+    end
+
     -- Cache
-    geo = { x = osc_geo.x + osc_geo.w - padX, y = geo.y,
-            an = 6, w = 150, h = geo.h }
+    t_r = t_r - padX
+    geo = { x = t_r, y = geo.y, an = 6, w = 150, h = geo.h }
+    t_r = t_r - geo.w - padX
     lo = add_layout("cache")
     lo.geometry = geo
     lo.style = osc_styles.vidtitleBar
 
-    local t_r = geo.x - geo.w - padX*2
-
     -- Title
     geo = { x = t_l, y = geo.y, an = 4,
             w = t_r - t_l, h = geo.h }
@@ -2065,6 +2084,19 @@ local function osc_init()
     bind_mouse_buttons("volume")
 
 
+    -- custom buttons
+    for i = 1, math.huge do
+        local content = user_opts["custom_button_" .. i .. "_content"]
+        if not content or content == "" then
+            break
+        end
+        ne = new_element("custom_button_" .. i, "button")
+        ne.content = content
+        bind_mouse_buttons("custom_button_" .. i)
+        last_custom_button = i
+    end
+
+
     -- load layout
     layouts[user_opts.layout]()