feat: initial support for updating options at runtime (#571)

Options can be changed during runtime by changing `script-opts`.
So far such option changes were simply ignored.
Now most options work, and the rest can be implemented when the needed.

scripts/uosc/elements/Controls.lua

@@ -19,6 +19,10 @@ function Controls:init()
 	---@type ControlItem[] Only controls that match current dispositions.
 	self.layout = {}
 
+	self:init_options()
+end
+
+function Controls:init_options()
 	-- Serialize control elements
 	local shorthands = {
 		menu = 'command:menu:script-binding uosc/menu-blurred?Menu',
@@ -326,4 +330,11 @@ function Controls:on_prop_border() self:update_dimensions() end
 function Controls:on_prop_fullormaxed() self:update_dimensions() end
 function Controls:on_timeline_enabled() self:update_dimensions() end
 
+function Controls:on_options()
+	for _, control in ipairs(self.controls) do
+		if control.element then control.element:destroy() end
+	end
+	self:init_options()
+end
+
 return Controls

scripts/uosc/elements/Element.lua

@@ -146,6 +146,7 @@ function Element:flash()
 		self:tween_stop()
 		self.forced_visibility = 1
 		request_render()
+		self._flash_out_timer.timeout = options.flash_duration / 1000
 		self._flash_out_timer:kill()
 		self._flash_out_timer:resume()
 	end

scripts/uosc/elements/Menu.lua

@@ -527,6 +527,7 @@ end
 
 function Menu:on_display() self:update_dimensions() end
 function Menu:on_prop_fullormaxed() self:update_content_dimensions() end
+function Menu:on_options() self:update_content_dimensions() end
 
 function Menu:handle_cursor_down()
 	if self.proximity_raw == 0 then

scripts/uosc/elements/PauseIndicator.lua

@@ -7,22 +7,16 @@ function PauseIndicator:new() return Class.new(self) --[[@as PauseIndicator]] en
 function PauseIndicator:init()
 	Element.init(self, 'pause_indicator')
 	self.ignores_menu = true
-	self.base_icon_opacity = options.pause_indicator == 'flash' and 1 or 0.8
 	self.paused = state.pause
-	self.type = options.pause_indicator
-	self.is_manual = options.pause_indicator == 'manual'
 	self.fadeout_requested = false
 	self.opacity = 0
+	self:init_options()
+end
 
-	mp.observe_property('pause', 'bool', function(_, paused)
-		if Elements.timeline.pressed then return end
-		if options.pause_indicator == 'flash' then
-			if self.paused == paused then return end
-			self:flash()
-		elseif options.pause_indicator == 'static' then
-			self:decide()
-		end
-	end)
+function PauseIndicator:init_options()
+	self.base_icon_opacity = options.pause_indicator == 'flash' and 1 or 0.8
+	self.type = options.pause_indicator
+	self.is_manual = options.pause_indicator == 'manual'
 end
 
 function PauseIndicator:flash()
@@ -49,6 +43,22 @@ function PauseIndicator:decide()
 	mp.add_timeout(.05, function() osd:update() end)
 end
 
+function PauseIndicator:on_prop_pause()
+	if Elements.timeline.pressed then return end
+	if options.pause_indicator == 'flash' then
+		if self.paused == state.pause then return end
+		self:flash()
+	elseif options.pause_indicator == 'static' then
+		self:decide()
+	end
+end
+
+function PauseIndicator:on_options()
+	self:init_options()
+	self:on_prop_pause()
+	if self.type == 'flash' then self.opacity = 0 end
+end
+
 function PauseIndicator:render()
 	if self.opacity == 0 then return end
 

scripts/uosc/elements/Speed.lua

@@ -27,6 +27,7 @@ function Speed:on_coordinates()
 	self.notch_spacing = self.width / (self.notches + 1)
 	self.font_size = round(self.height * 0.48 * options.font_scale)
 end
+function Speed:on_options() self:on_coordinates() end
 
 function Speed:speed_step(speed, up)
 	if options.speed_step_is_factor then

scripts/uosc/elements/Timeline.lua

@@ -108,6 +108,10 @@ function Timeline:on_prop_time() self:decide_enabled() end
 function Timeline:on_prop_border() self:update_dimensions() end
 function Timeline:on_prop_fullormaxed() self:update_dimensions() end
 function Timeline:on_display() self:update_dimensions() end
+function Timeline:on_options()
+	self.top_border = options.timeline_border
+	self:update_dimensions()
+end
 function Timeline:handle_cursor_up()
 	if self.pressed then
 		mp.set_property_native('pause', self.pressed.pause)

scripts/uosc/elements/TopBar.lua

@@ -161,6 +161,11 @@ end
 
 function TopBar:on_display() self:update_dimensions() end
 
+function TopBar:on_options()
+	self:decide_enabled()
+	self:update_dimensions()
+end
+
 function TopBar:render()
 	local visibility = self:get_visibility()
 	if visibility <= 0 then return end

scripts/uosc/elements/Volume.lua

@@ -248,5 +248,6 @@ end
 function Volume:on_display() self:update_dimensions() end
 function Volume:on_prop_border() self:update_dimensions() end
 function Volume:on_controls_reflow() self:update_dimensions() end
+function Volume:on_options() self:update_dimensions() end
 
 return Volume

scripts/uosc/elements/WindowBorder.lua

@@ -17,6 +17,7 @@ end
 
 function WindowBorder:on_prop_border() self:decide_enabled() end
 function WindowBorder:on_prop_fullormaxed() self:decide_enabled() end
+function WindowBorder:on_options() self:decide_enabled() end
 
 function WindowBorder:render()
 	if self.size > 0 then

scripts/uosc/main.lua

@@ -109,7 +109,12 @@ defaults = {
 	languages = 'slang,en',
 }
 options = table_shallow_copy(defaults)
-opt.read_options(options, 'uosc')
+opt.read_options(options, 'uosc', function(_)
+	update_human_times()
+	Elements:trigger('options')
+	Elements:update_proximities()
+	request_render()
+end)
 -- Normalize values
 options.proximity_out = math.max(options.proximity_out, options.proximity_in + 1)
 if options.chapter_ranges:sub(1, 4) == '^op|' then options.chapter_ranges = defaults.chapter_ranges end