fix: render thumbnails on uosc side

scripts/uosc.lua

@@ -328,6 +328,8 @@ state = {
 	hidpi_scale = 1,
 }
 thumbnail = {width = 0, height = 0, disabled = false}
+thumbnail_state = {updated = true, show=true, x = 0, y = 0, ax = 0, ay = 0, bx = 0, by = 0, color = '000000', border_color = 'ffffff', render = {}}
+script_name = mp.get_script_name()
 external = {} -- Properties set by external scripts
 Elements = require('uosc_shared/elements/Elements')
 Menu = require('uosc_shared/elements/Menu')
@@ -539,8 +541,19 @@ function update_mouse_pos(_, mouse, ignore_hover)
 end
 mp.observe_property('mouse-pos', 'native', update_mouse_pos)
 mp.observe_property('osc', 'bool', function(name, value) if value == true then mp.set_property('osc', 'no') end end)
+
+function clear_thumbnail()
+	if not thumbnail_state.show then return end
+	mp.commandv('script-message-to', 'thumbfast', 'clear')
+	thumbnail_state.updated = true
+	if thumbnail.overlay_id ~= nil then
+        mp.command_native({"overlay-remove", thumbnail.overlay_id})
+    end
+	thumbnail_state.show = false
+end
 mp.register_event('file-loaded', function()
 	set_state('path', normalize_path(mp.get_property_native('path')))
+	clear_thumbnail()
 end)
 mp.register_event('end-file', function(event)
 	if event.reason == 'eof' then
@@ -1045,6 +1058,23 @@ mp.register_script_message('update-menu', function(json)
 		else open_command_menu(data) end
 	end
 end)
+function thumbnail_render()
+	if not thumbnail_state.updated or not thumbnail.thumbnail then return end
+	thumbnail_state.updated = false
+	thumbnail_ass = assdraw.ass_new()
+	if not thumbnail_state.show then
+		if thumbnail.overlay_id ~= nil then
+			mp.command_native(
+				{name = "overlay-remove", id=thumbnail.overlay_id}
+			)
+		end
+		return
+	end
+	thumbnail_ass:rect(thumbnail_state.ax, thumbnail_state.ay, thumbnail_state.bx, thumbnail_state.by, {color = thumbnail_state.color, border = 1, border_color = thumbnail_state.border_color, border_opacity = 0.08, radius = 2})
+	mp.command_native(
+		{name = "overlay-add", id=thumbnail.overlay_id, x=thumbnail_state.x, y=thumbnail_state.y, file=thumbnail.thumbnail..".bgra", offset=0, fmt="bgra", w=thumbnail.width, h=thumbnail.height, stride=(4*thumbnail.width)}
+	)
+end
 mp.register_script_message('thumbfast-info', function(json)
 	local data = utils.parse_json(json)
 	if type(data) ~= 'table' or not data.width or not data.height then

scripts/uosc_shared/elements/Timeline.lua

@@ -84,7 +84,6 @@ function Timeline:set_from_cursor(fast)
 		mp.commandv('seek', self:get_time_at_x(cursor.x), fast and 'absolute+keyframes' or 'absolute+exact')
 	end
 end
-function Timeline:clear_thumbnail() mp.commandv('script-message-to', 'thumbfast', 'clear') end
 
 function Timeline:on_mbtn_left_down()
 	self.pressed = true
@@ -97,17 +96,14 @@ 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_mouse_leave() self:clear_thumbnail() end
 function Timeline:on_global_mbtn_left_up()
 	if self.pressed then
 		mp.set_property_native('pause', self.pressed_pause)
 		self.pressed = false
 	end
-	self:clear_thumbnail()
 end
 function Timeline:on_global_mouse_leave()
 	self.pressed = false
-	self:clear_thumbnail()
 end
 
 Timeline.seek_timer = mp.add_timeout(0.05, function() Elements.timeline:set_from_cursor() end)
@@ -131,7 +127,10 @@ function Timeline:render()
 	local size = self:get_effective_size()
 	local visibility = self:get_visibility()
 
-	if size < 1 then return end
+	if size < 1 then
+		clear_thumbnail()
+		return
+	end
 
 	local ass = assdraw.ass_new()
 
@@ -321,8 +320,8 @@ function Timeline:render()
 			local thumb_y = round(tooltip_anchor.ay * scale_y - thumb_y_margin - thumb_height)
 			local ax, ay = (thumb_x - border) / scale_x, (thumb_y - border) / scale_y
 			local bx, by = (thumb_x + thumb_width + border) / scale_x, (thumb_y + thumb_height + border) / scale_y
-			ass:rect(ax, ay, bx, by, {color = bg, border = 1, border_color = fg, border_opacity = 0.08, radius = 2})
-			mp.commandv('script-message-to', 'thumbfast', 'thumb', hovered_seconds, thumb_x, thumb_y)
+			thumbnail_state = {updated = true, show=true, x = thumb_x, y = thumb_y, ax = ax, ay = ay, bx = bx, by = by, color = bg, border_color = fg, render = thumbnail_state.render}
+			mp.commandv('script-message-to', 'thumbfast', 'thumb', hovered_seconds, "", "", script_name)
 			tooltip_anchor.ax, tooltip_anchor.bx, tooltip_anchor.ay = ax, bx, ay
 		end
 
@@ -336,6 +335,8 @@ function Timeline:render()
 				})
 			end
 		end
+	else
+		clear_thumbnail()
 	end
 
 	return ass

scripts/uosc_shared/lib/utils.lua

@@ -517,6 +517,13 @@ function render()
 		end
 	end
 
+	thumbnail_render()
+
+	if thumbnail_ass then
+		ass:new_event()
+		ass:merge(thumbnail_ass)
+	end
+
 	-- submit
 	if osd.res_x == display.width and osd.res_y == display.height and osd.data == ass.text then
 		return