Merge pull request #1369 from MidoriKami/DTRBarEnhancements

Dalamud/Game/AddonEventManager/AddonCursorType.cs

@@ -0,0 +1,97 @@
+namespace Dalamud.Game.AddonEventManager;
+
+/// <summary>
+/// Reimplementation of CursorType.
+/// </summary>
+public enum AddonCursorType
+{
+    /// <summary>
+    /// Arrow.
+    /// </summary>
+    Arrow,
+
+    /// <summary>
+    /// Boot.
+    /// </summary>
+    Boot,
+
+    /// <summary>
+    /// Search.
+    /// </summary>
+    Search,
+
+    /// <summary>
+    /// Chat Pointer.
+    /// </summary>
+    ChatPointer,
+
+    /// <summary>
+    /// Interact.
+    /// </summary>
+    Interact,
+
+    /// <summary>
+    /// Attack.
+    /// </summary>
+    Attack,
+
+    /// <summary>
+    /// Hand.
+    /// </summary>
+    Hand,
+
+    /// <summary>
+    /// Resizeable Left-Right.
+    /// </summary>
+    ResizeWE,
+
+    /// <summary>
+    /// Resizeable Up-Down.
+    /// </summary>
+    ResizeNS,
+
+    /// <summary>
+    /// Resizeable.
+    /// </summary>
+    ResizeNWSR,
+
+    /// <summary>
+    /// Resizeable 4-way.
+    /// </summary>
+    ResizeNESW,
+
+    /// <summary>
+    /// Clickable.
+    /// </summary>
+    Clickable,
+
+    /// <summary>
+    /// Text Input.
+    /// </summary>
+    TextInput,
+
+    /// <summary>
+    /// Text Click.
+    /// </summary>
+    TextClick,
+
+    /// <summary>
+    /// Grab.
+    /// </summary>
+    Grab,
+
+    /// <summary>
+    /// Chat Bubble.
+    /// </summary>
+    ChatBubble,
+
+    /// <summary>
+    /// No Access.
+    /// </summary>
+    NoAccess,
+
+    /// <summary>
+    /// Hidden.
+    /// </summary>
+    Hidden,
+}

Dalamud/Game/AddonEventManager/AddonEventListener.cs

@@ -0,0 +1,87 @@
+using System;
+using System.Runtime.InteropServices;
+
+using FFXIVClientStructs.FFXIV.Component.GUI;
+
+namespace Dalamud.Game.AddonEventManager;
+
+/// <summary>
+/// Event listener class for managing custom events.
+/// </summary>
+// Custom event handler tech provided by Pohky, implemented by MidoriKami
+internal unsafe class AddonEventListener : IDisposable
+{
+    private ReceiveEventDelegate? receiveEventDelegate;
+
+    private AtkEventListener* eventListener;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="AddonEventListener"/> class.
+    /// </summary>
+    /// <param name="eventHandler">The managed handler to send events to.</param>
+    public AddonEventListener(ReceiveEventDelegate eventHandler)
+    {
+        this.receiveEventDelegate = eventHandler;
+
+        this.eventListener = (AtkEventListener*)Marshal.AllocHGlobal(sizeof(AtkEventListener));
+        this.eventListener->vtbl = (void*)Marshal.AllocHGlobal(sizeof(void*) * 3);
+        this.eventListener->vfunc[0] = (delegate* unmanaged<void>)&NullSub;
+        this.eventListener->vfunc[1] = (delegate* unmanaged<void>)&NullSub;
+        this.eventListener->vfunc[2] = (void*)Marshal.GetFunctionPointerForDelegate(this.receiveEventDelegate);
+    }
+
+    /// <summary>
+    /// Delegate for receiving custom events.
+    /// </summary>
+    /// <param name="self">Pointer to the event listener.</param>
+    /// <param name="eventType">Event type.</param>
+    /// <param name="eventParam">Unique Id for this event.</param>
+    /// <param name="eventData">Event Data.</param>
+    /// <param name="unknown">Unknown Parameter.</param>
+    public delegate void ReceiveEventDelegate(AtkEventListener* self, AtkEventType eventType, uint eventParam, AtkEvent* eventData, nint unknown);
+
+    /// <inheritdoc />
+    public void Dispose()
+    {
+        if (this.eventListener is null) return;
+
+        Marshal.FreeHGlobal((nint)this.eventListener->vtbl);
+        Marshal.FreeHGlobal((nint)this.eventListener);
+
+        this.eventListener = null;
+        this.receiveEventDelegate = null;
+    }
+
+    /// <summary>
+    /// Register an event to this event handler.
+    /// </summary>
+    /// <param name="addon">Addon that triggers this event.</param>
+    /// <param name="node">Node to attach event to.</param>
+    /// <param name="eventType">Event type to trigger this event.</param>
+    /// <param name="param">Unique id for this event.</param>
+    public void RegisterEvent(AtkUnitBase* addon, AtkResNode* node, AtkEventType eventType, uint param)
+    {
+        if (node is null) return;
+
+        node->AddEvent(eventType, param, this.eventListener, (AtkResNode*)addon, false);
+    }
+
+    /// <summary>
+    /// Unregister an event from this event handler.
+    /// </summary>
+    /// <param name="node">Node to remove the event from.</param>
+    /// <param name="eventType">Event type that this event is for.</param>
+    /// <param name="param">Unique id for this event.</param>
+    public void UnregisterEvent(AtkResNode* node, AtkEventType eventType, uint param)
+    {
+        if (node is null) return;
+
+        node->RemoveEvent(eventType, param, this.eventListener, false);
+    }
+
+    [UnmanagedCallersOnly]
+    private static void NullSub()
+    {
+        /* do nothing */
+    }
+}