Initial

Penumbra.Api/Helpers/ActionSubscriber.cs

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+using Dalamud.Plugin;
+using Dalamud.Plugin.Ipc;
+
+namespace Penumbra.Api.Helpers;
+
+/// <summary>
+/// Specialized subscriber only allowing to invoke actions.
+/// </summary>
+public class ActionSubscriber
+{
+    private readonly ICallGateSubscriber<object?>? _subscriber;
+
+    /// <summary> Whether the subscriber could successfully be created. </summary>
+    public bool Valid
+        => _subscriber != null;
+
+    protected ActionSubscriber(IDalamudPluginInterface pi, string label)
+    {
+        try
+        {
+            _subscriber = pi.GetIpcSubscriber<object?>(label);
+        }
+        catch (Exception e)
+        {
+            PluginLogHelper.WriteError(pi, $"Error registering IPC Subscriber for {label}\n{e}");
+            _subscriber = null;
+        }
+    }
+
+    /// <summary> Invoke the action. See the source of the subscriber for details.</summary>
+    protected void Invoke()
+        => _subscriber?.InvokeAction();
+}
+
+/// <inheritdoc cref="ActionSubscriber"/> 
+public class ActionSubscriber<T1>
+{
+    private readonly ICallGateSubscriber<T1, object?>? _subscriber;
+
+    /// <summary> Whether the subscriber could successfully be created. </summary>
+    public bool Valid
+        => _subscriber != null;
+
+    protected ActionSubscriber(IDalamudPluginInterface pi, string label)
+    {
+        try
+        {
+            _subscriber = pi.GetIpcSubscriber<T1, object?>(label);
+        }
+        catch (Exception e)
+        {
+            PluginLogHelper.WriteError(pi, $"Error registering IPC Subscriber for {label}\n{e}");
+            _subscriber = null;
+        }
+    }
+
+    /// <summary> Invoke the action. See the source of the subscriber for details.</summary>
+    protected void Invoke(T1 a)
+        => _subscriber?.InvokeAction(a);
+}
+
+/// <inheritdoc cref="ActionSubscriber"/> 
+public class ActionSubscriber<T1, T2>
+{
+    private readonly ICallGateSubscriber<T1, T2, object?>? _subscriber;
+
+    /// <inheritdoc cref="ActionSubscriber{T1}.Valid"/> 
+    public bool Valid
+        => _subscriber != null;
+
+    protected ActionSubscriber(IDalamudPluginInterface pi, string label)
+    {
+        try
+        {
+            _subscriber = pi.GetIpcSubscriber<T1, T2, object?>(label);
+        }
+        catch (Exception e)
+        {
+            PluginLogHelper.WriteError(pi, $"Error registering IPC Subscriber for {label}\n{e}");
+            _subscriber = null;
+        }
+    }
+
+    /// <inheritdoc cref="ActionSubscriber.Invoke"/> 
+    protected void Invoke(T1 a, T2 b)
+        => _subscriber?.InvokeAction(a, b);
+}
+
+/// <inheritdoc cref="ActionSubscriber"/> 
+public class ActionSubscriber<T1, T2, T3>
+{
+    private readonly ICallGateSubscriber<T1, T2, T3, object?>? _subscriber;
+
+    /// <inheritdoc cref="ActionSubscriber{T1}.Valid"/> 
+    public bool Valid
+        => _subscriber != null;
+
+    protected ActionSubscriber(IDalamudPluginInterface pi, string label)
+    {
+        try
+        {
+            _subscriber = pi.GetIpcSubscriber<T1, T2, T3, object?>(label);
+        }
+        catch (Exception e)
+        {
+            PluginLogHelper.WriteError(pi, $"Error registering IPC Subscriber for {label}\n{e}");
+            _subscriber = null;
+        }
+    }
+
+    /// <inheritdoc cref="ActionSubscriber.Invoke"/> 
+    protected void Invoke(T1 a, T2 b, T3 c)
+        => _subscriber?.InvokeAction(a, b, c);
+}