Add mpv config

mpv/scripts/uosc/elements/CycleButton.lua

@@ -0,0 +1,59 @@
+local Button = require('elements/Button')
+
+---@alias CycleState {value: any; icon: string; active?: boolean}
+---@alias CycleButtonProps {prop: string; states: CycleState[]; anchor_id?: string; tooltip?: string}
+
+---@class CycleButton : Button
+local CycleButton = class(Button)
+
+---@param id string
+---@param props CycleButtonProps
+function CycleButton:new(id, props) return Class.new(self, id, props) --[[@as CycleButton]] end
+---@param id string
+---@param props CycleButtonProps
+function CycleButton:init(id, props)
+	local is_state_prop = itable_index_of({'shuffle'}, props.prop)
+	self.prop = props.prop
+	self.states = props.states
+
+	Button.init(self, id, props)
+
+	self.icon = self.states[1].icon
+	self.active = self.states[1].active
+	self.current_state_index = 1
+	self.on_click = function()
+		local new_state = self.states[self.current_state_index + 1] or self.states[1]
+		local new_value = new_state.value
+		if self.owner then
+			mp.commandv('script-message-to', self.owner, 'set', self.prop, new_value)
+		elseif is_state_prop then
+			if itable_index_of({'yes', 'no'}, new_value) then new_value = new_value == 'yes' end
+			set_state(self.prop, new_value)
+		else
+			mp.set_property(self.prop, new_value)
+		end
+	end
+
+	local function handle_change(name, value)
+		value = type(value) == 'boolean' and (value and 'yes' or 'no') or tostring(value or '')
+		local index = itable_find(self.states, function(state) return state.value == value end)
+		self.current_state_index = index or 1
+		self.icon = self.states[self.current_state_index].icon
+		self.active = self.states[self.current_state_index].active
+		request_render()
+	end
+
+	local prop_parts = split(self.prop, '@')
+	if #prop_parts == 2 then -- External prop with a script owner
+		self.prop, self.owner = prop_parts[1], prop_parts[2]
+		self['on_external_prop_' .. self.prop] = function(_, value) handle_change(self.prop, value) end
+		handle_change(self.prop, external[self.prop])
+	elseif is_state_prop then -- uosc's state props
+		self['on_prop_' .. self.prop] = function(self, value) handle_change(self.prop, value) end
+		handle_change(self.prop, state[self.prop])
+	else
+		self:observe_mp_property(self.prop, 'string', handle_change)
+	end
+end
+
+return CycleButton