Add AddonEventManager

Dalamud/Plugin/Services/IAddonEventManager.cs

@@ -0,0 +1,36 @@
+using Dalamud.Game.AddonEventManager;
+
+namespace Dalamud.Plugin.Services;
+
+/// <summary>
+/// Service provider for addon event management.
+/// </summary>
+public interface IAddonEventManager
+{
+    /// <summary>
+    /// Delegate to be called when an event is received.
+    /// </summary>
+    /// <param name="atkEventType">Event type for this event handler.</param>
+    /// <param name="atkUnitBase">The parent addon for this event handler.</param>
+    /// <param name="atkResNode">The specific node that will trigger this event handler.</param>
+    public delegate void AddonEventHandler(AddonEventType atkEventType, nint atkUnitBase, nint atkResNode);
+
+    /// <summary>
+    /// Registers an event handler for the specified addon, node, and type.
+    /// </summary>
+    /// <param name="eventId">Unique Id for this event, maximum 0x10000.</param>
+    /// <param name="atkUnitBase">The parent addon for this event.</param>
+    /// <param name="atkResNode">The node that will trigger this event.</param>
+    /// <param name="eventType">The event type for this event.</param>
+    /// <param name="eventHandler">The handler to call when event is triggered.</param>
+    void AddEvent(uint eventId, nint atkUnitBase, nint atkResNode, AddonEventType eventType, AddonEventHandler eventHandler);
+
+    /// <summary>
+    /// Unregisters an event handler with the specified event id and event type.
+    /// </summary>
+    /// <param name="eventId">The Unique Id for this event.</param>
+    /// <param name="atkUnitBase">The parent addon for this event.</param>
+    /// <param name="atkResNode">The node for this event.</param>
+    /// <param name="eventType">The event type for this event.</param>
+    void RemoveEvent(uint eventId, nint atkUnitBase, nint atkResNode, AddonEventType eventType);
+}