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Source/Engine/Scripting/ManagedCLR/MEvent.h

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+// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#include "MMethod.h"
+
+/// <summary>
+/// Encapsulates information about a single Mono (managed) event belonging to some managed class. This object also allows you to invoke this event or register other methods to it.
+/// </summary>
+class FLAXENGINE_API MEvent
+{
+    friend MClass;
+
+protected:
+
+#if USE_MONO
+    MonoEvent* _monoEvent;
+#endif
+
+    MMethod* _addMethod;
+    MMethod* _removeMethod;
+    MClass* _parentClass;
+
+    MString _name;
+
+    Array<MonoObject*> _attributes;
+
+    int32 _hasCachedAttributes : 1;
+    int32 _hasAddMonoMethod : 1;
+    int32 _hasRemoveMonoMethod : 1;
+
+public:
+
+#if USE_MONO
+    explicit MEvent(MonoEvent* monoEvent, const char* name, MClass* parentClass);
+#endif
+
+public:
+
+    /// <summary>
+    /// Gets the event name.
+    /// </summary>
+    /// <returns>The name.</returns>
+    FORCE_INLINE const MString& GetName() const
+    {
+        return _name;
+    }
+
+    /// <summary>
+    /// Returns the parent class that this method is contained with.
+    /// </summary>
+    /// <returns>The parent class.</returns>
+    FORCE_INLINE MClass* GetParentClass() const
+    {
+        return _parentClass;
+    }
+
+    /// <summary>
+    /// Gets the event type class.
+    /// </summary>
+    /// <returns>The type class.</returns>
+    MType GetType();
+
+    /// <summary>
+    /// Gets the event add method.
+    /// </summary>
+    /// <returns>The method object.</returns>
+    MMethod* GetAddMethod();
+
+    /// <summary>
+    /// Gets the event remove method.
+    /// </summary>
+    /// <returns>The method object.</returns>
+    MMethod* GetRemoveMethod();
+
+    /// <summary>
+    /// Gets event visibility in the class.
+    /// </summary>
+    /// <returns>The event visibility.</returns>
+    FORCE_INLINE MVisibility GetVisibility()
+    {
+        return GetAddMethod()->GetVisibility();
+    }
+
+    /// <summary>
+    /// Returns true if event is static.
+    /// </summary>
+    /// <returns>True if is static, otherwise false.</returns>
+    FORCE_INLINE bool IsStatic()
+    {
+        return GetAddMethod()->IsStatic();
+    }
+
+#if USE_MONO
+
+    /// <summary>
+    /// Gets the Mono event handle.
+    /// </summary>
+    /// <returns>The Mono event.</returns>
+    FORCE_INLINE MonoEvent* GetNative() const
+    {
+        return _monoEvent;
+    }
+
+#endif
+
+public:
+
+    /// <summary>
+    /// Checks if event has an attribute of the specified type.
+    /// </summary>
+    /// <param name="monoClass">The attribute class to check.</param>
+    /// <returns>True if has attribute of that class type, otherwise false.</returns>
+    bool HasAttribute(MClass* monoClass) const;
+
+    /// <summary>
+    /// Checks if event has an attribute of any type.
+    /// </summary>
+    /// <returns>True if has any custom attribute, otherwise false.</returns>
+    bool HasAttribute() const;
+
+    /// <summary>
+    /// Returns an instance of an attribute of the specified type. Returns null if the event doesn't have such an attribute.
+    /// </summary>
+    /// <param name="monoClass">The attribute class to take.</param>
+    /// <returns>The attribute object.</returns>
+    MonoObject* GetAttribute(MClass* monoClass) const;
+
+    /// <summary>
+    /// Returns an instance of all attributes connected with given event. Returns null if the event doesn't have any attributes.
+    /// </summary>
+    /// <returns>The array of attribute objects.</returns>
+    const Array<MonoObject*>& GetAttributes();
+};