fix: touchscreen interactions don't require extra presses

previously activating a control meant tapping it once to enable
proximity, then tapping it again to do the actual interaction.
now a single tap will do that.

previously the following glitch was present:
- interact with a slider
- release touch on that slider
- touch a different control
->input would be received by the old control

now the input is received by the correct control

scripts/uosc/main.lua

@@ -327,7 +327,7 @@ cursor = {
 	mbtn_left_enabled = nil,
 	wheel_enabled = nil,
 	decide_keybinds = function()
-		local enable_mbtn_left = (cursor.on_primary_down or cursor.on_primary_up) ~= nil
+		local enable_mbtn_left = true -- (cursor.on_primary_down or cursor.on_primary_up) ~= nil
 		local enable_wheel = (cursor.on_wheel_down or cursor.on_wheel_up) ~= nil
 		if enable_mbtn_left ~= cursor.mbtn_left_enabled then
 			local flags = cursor.allow_dragging and 'allow-vo-dragging' or nil
@@ -366,7 +366,7 @@ cursor = {
 		-- displays the top bar, so we hardcode cursor position as infinity until
 		-- we receive a first real mouse move event with coordinates other than 0,0.
 		if not state.first_real_mouse_move_received then
-			if x > 0 and y > 0 then state.first_real_mouse_move_received = true
+			if x > 0 and y > 0 and x < INFINITY and y < INFINITY then state.first_real_mouse_move_received = true
 			else x, y = INFINITY, INFINITY end
 		end
 
@@ -374,9 +374,16 @@ cursor = {
 		cursor.x, cursor.y = (x + 0.5) / display.scale_x, (y + 0.5) / display.scale_y
 
 		if old_x ~= cursor.x or old_y ~= cursor.y then
+			is_leave = cursor.x == INFINITY or cursor.y == INFINITY
+			is_enter = cursor.hidden and not is_leave;
+			if is_enter then
+				cursor.hidden = false
+				cursor.history:clear()
+				Elements:trigger('global_mouse_enter')
+			end
 			Elements:update_proximities()
 
-			if cursor.x == INFINITY or cursor.y == INFINITY then
+			if is_leave then
 				cursor.hidden = true
 				cursor.history:clear()
 
@@ -391,11 +398,7 @@ cursor = {
 				end
 
 				Elements:trigger('global_mouse_leave')
-			elseif cursor.hidden then
-				cursor.hidden = false
-				cursor.history:clear()
-				Elements:trigger('global_mouse_enter')
-			else
+			elseif not is_enter then
 				-- Update history
 				cursor.history:insert({x = cursor.x, y = cursor.y, time = mp.get_time()})
 			end
@@ -404,7 +407,7 @@ cursor = {
 			cursor.queue_autohide()
 		end
 
-		request_render()
+		render()
 	end,
 	leave = function () cursor.move(INFINITY, INFINITY) end,
 	-- Cursor auto-hiding after period of inactivity
@@ -685,7 +688,9 @@ function handle_mouse_pos(_, mouse)
 	else
 		cursor.move(mouse.x, mouse.y)
 	end
-	cursor.hover_raw = mouse.hover
+	if state.first_real_mouse_move_received then
+		cursor.hover_raw = mouse.hover
+	end
 end
 mp.observe_property('mouse-pos', 'native', handle_mouse_pos)
 mp.observe_property('osc', 'bool', function(name, value) if value == true then mp.set_property('osc', 'no') end end)
@@ -881,11 +886,13 @@ mp.observe_property('core-idle', 'native', create_state_setter('core_idle'))
 
 --[[ KEY BINDS ]]
 
+cursor.decide_keybinds()
+
 -- Pointer related binding groups
 function make_cursor_handler(event, cb)
 	return function(...)
-		call_maybe(cursor[event], ...)
 		call_maybe(cb, ...)
+		call_maybe(cursor[event], ...)
 		cursor.queue_autohide() -- refresh cursor autohide timer
 	end
 end