mpv: Update gui interface

multimedia/.config/mpv/scripts/uosc_shared/elements/WindowBorder.lua

@@ -0,0 +1,33 @@
+local Element = require('uosc_shared/elements/Element')
+
+---@class WindowBorder : Element
+local WindowBorder = class(Element)
+
+function WindowBorder:new() return Class.new(self) --[[@as WindowBorder]] end
+function WindowBorder:init()
+	Element.init(self, 'window_border')
+	self.ignores_menu = true
+	self.size = 0
+end
+
+function WindowBorder:decide_enabled()
+	self.enabled = options.window_border_size > 0 and not state.fullormaxed and not state.border
+	self.size = self.enabled and options.window_border_size or 0
+end
+
+function WindowBorder:on_prop_border() self:decide_enabled() end
+function WindowBorder:on_prop_fullormaxed() self:decide_enabled() end
+
+function WindowBorder:render()
+	if self.size > 0 then
+		local ass = assdraw.ass_new()
+		local clip = '\\iclip(' .. self.size .. ',' .. self.size .. ',' ..
+			(display.width - self.size) .. ',' .. (display.height - self.size) .. ')'
+		ass:rect(0, 0, display.width + 1, display.height + 1, {
+			color = bg, clip = clip, opacity = options.window_border_opacity,
+		})
+		return ass
+	end
+end
+
+return WindowBorder