add gs

RCCService2021/ExtraContent/LuaPackages/InGameServices/MouseIconOverrideService.lua

@@ -0,0 +1,71 @@
+--[[
+	Prevents conflicts when multiple CoreScript subsystems are trying to override
+	the mouse cursor at the same time. This uses a stack approach similar to how
+	ContextActionService works. The most recent override takes precedence, and any
+	previously set overrides will remain on the stack beneath it until removed.
+
+	Example usage:
+		local MOUSE_OVERRIDE_KEY = Symbol.named("PurchasePrompt")
+		MouseIconOverrideService.push(MOUSE_OVERRIDE_KEY, Enum.OverrideMouseIconBehavior.ForceShow)
+		MouseIconOverrideService.pop(MOUSE_OVERRIDE_KEY)
+]]
+
+local UserInputService = game:GetService("UserInputService")
+
+local FFlagUseCursorOverrideManager2 = game:DefineFastFlag("UseCursorOverrideManager2", false)
+
+local cursorOverrideStack = {}
+
+local function update()
+	local activeOverride = cursorOverrideStack[#cursorOverrideStack]
+	if activeOverride then
+		UserInputService.OverrideMouseIconBehavior = activeOverride[2]
+	else
+		UserInputService.OverrideMouseIconBehavior = Enum.OverrideMouseIconBehavior.None
+	end
+end
+
+return {
+	push = function(key, behavior)
+		if not FFlagUseCursorOverrideManager2 then
+			UserInputService.OverrideMouseIconBehavior = behavior
+			return
+		end
+
+		assert(type(key) == "userdata" or type(key) == "string")
+		assert(typeof(behavior) == "EnumItem")
+		assert(behavior.EnumType == Enum.OverrideMouseIconBehavior)
+
+		for idx, entry in ipairs(cursorOverrideStack) do
+			if entry[1] == key then
+				table.remove(cursorOverrideStack, idx)
+				break
+			end
+		end
+
+		table.insert(cursorOverrideStack, {key, behavior})
+		update()
+	end,
+	pop = function(key)
+		if not FFlagUseCursorOverrideManager2 then
+			UserInputService.OverrideMouseIconBehavior = Enum.OverrideMouseIconBehavior.None
+			return
+		end
+
+		assert(type(key) == "userdata" or type(key) == "string")
+
+		local idx
+
+		for testIdx, entry in ipairs(cursorOverrideStack) do
+			if entry[1] == key then
+				idx = testIdx
+				break
+			end
+		end
+
+		assert(idx, "No cursor override named " .. tostring(key))
+
+		table.remove(cursorOverrideStack, idx)
+		update()
+	end,
+}