initial scriptcanvas source handle

Signed-off-by: chcurran <82187351+carlitosan@users.noreply.github.com>

Gems/ScriptCanvas/Code/Editor/Include/ScriptCanvas/Assets/ScriptCanvasAssetHandler.h

@@ -20,11 +20,6 @@ namespace AZ
 
 namespace ScriptCanvasEditor
 {
-    AZ::Outcome<void, AZStd::string> LoadScriptCanvasDataFromJson
-        ( ScriptCanvas::ScriptCanvasData& dataTarget
-        , AZStd::string_view source
-        , AZ::SerializeContext& serializeContext);
-
     /**
     * Manages editor Script Canvas graph assets.
     */

Gems/ScriptCanvas/Code/Editor/Include/ScriptCanvas/Assets/ScriptCanvasBaseAssetData.cpp

@@ -11,13 +11,23 @@
 
 namespace ScriptCanvas
 {
+    const Graph* ScriptCanvasData::GetGraph() const
+    {
+        return AZ::EntityUtils::FindFirstDerivedComponent<ScriptCanvas::Graph>(m_scriptCanvasEntity.get());
+    }
+
+    const ScriptCanvasEditor::Graph* ScriptCanvasData::GetEditorGraph() const
+    {
+        return AZ::EntityUtils::FindFirstDerivedComponent<ScriptCanvasEditor::Graph>(m_scriptCanvasEntity.get());
+    }
+
     Graph* ScriptCanvasData::ModGraph()
     {
         return AZ::EntityUtils::FindFirstDerivedComponent<ScriptCanvas::Graph>(m_scriptCanvasEntity.get());
     }
 
-    const Graph* ScriptCanvasData::GetGraph() const
+    ScriptCanvasEditor::Graph* ScriptCanvasData::ModEditorGraph()
     {
-        return AZ::EntityUtils::FindFirstDerivedComponent<ScriptCanvas::Graph>(m_scriptCanvasEntity.get());
+        return AZ::EntityUtils::FindFirstDerivedComponent<ScriptCanvasEditor::Graph>(m_scriptCanvasEntity.get());
     }
 }

Gems/ScriptCanvas/Code/Editor/Include/ScriptCanvas/Assets/ScriptCanvasBaseAssetData.h

@@ -28,9 +28,13 @@ namespace ScriptCanvas
 
         AZ::Entity* GetScriptCanvasEntity() const { return m_scriptCanvasEntity.get(); }
 
+        const Graph* GetGraph() const;
+
+        const ScriptCanvasEditor::Graph* GetEditorGraph() const;
+
         Graph* ModGraph();
 
-        const Graph* GetGraph() const;
+        ScriptCanvasEditor::Graph* ModEditorGraph();
 
         AZStd::unique_ptr<AZ::Entity> m_scriptCanvasEntity;
     private:

Gems/ScriptCanvas/Code/Editor/Include/ScriptCanvas/Assets/ScriptCanvasFileHandling.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#pragma once
+
+#include <AzCore/Asset/AssetManager.h>
+#include <AzCore/Asset/AssetTypeInfoBus.h>
+#include <AzCore/Serialization/ObjectStream.h>
+#include <ScriptCanvas/Assets/ScriptCanvasAsset.h>
+#include <ScriptCanvas/Assets/ScriptCanvasSourceFileHandle.h>
+
+namespace AZ
+{
+    class SerializeContext;
+}
+
+namespace ScriptCanvas
+{
+    class ScriptCanvasData;
+}
+
+namespace ScriptCanvasEditor
+{
+    AZ::Outcome<ScriptCanvasEditor::SourceHandle, AZStd::string> LoadFromFile(AZStd::string_view path);
+
+    AZ::Outcome<void, AZStd::string> LoadDataFromJson
+        ( ScriptCanvas::ScriptCanvasData& dataTarget
+        , AZStd::string_view source
+        , AZ::SerializeContext& serializeContext);
+ }

Gems/ScriptCanvas/Code/Editor/Include/ScriptCanvas/Assets/ScriptCanvasSourceFileHandle.cpp

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#include <Editor/Include/ScriptCanvas/Assets/ScriptCanvasSourceFileHandle.h>
+#include <Editor/Include/ScriptCanvas/Assets/ScriptCanvasBaseAssetData.h>
+
+namespace ScriptCanvasEditor
+{
+    SourceHandle::SourceHandle(ScriptCanvas::DataPtr graph, const AZ::Uuid& id, AZStd::string_view path)
+        : m_data(graph)
+        , m_id(id)
+        , m_path(path)
+    {}
+
+    void SourceHandle::Clear()
+    {
+        m_data = nullptr;
+        m_id = AZ::Uuid::CreateNull();
+        m_path.clear();
+    }
+
+    GraphPtrConst SourceHandle::Get() const
+    {
+        return m_data ? m_data->GetEditorGraph() : nullptr;
+    }
+
+    const AZ::Uuid& SourceHandle::Id() const
+    {
+        return m_id;
+    }
+
+    bool SourceHandle::IsValid() const
+    {
+        return *this;
+    }
+
+    GraphPtr SourceHandle::Mod() const
+    {
+        return m_data ? m_data->ModEditorGraph() : nullptr;
+    }
+
+    SourceHandle::operator bool() const
+    {
+        return m_data != nullptr;
+    }
+
+    bool SourceHandle::operator!() const
+    {
+        return m_data == nullptr;
+    }
+
+    const AZStd::string& SourceHandle::Path() const
+    {
+        return m_path;
+    }
+}

Gems/ScriptCanvas/Code/Editor/Include/ScriptCanvas/Assets/ScriptCanvasSourceFileHandle.h

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#pragma once
+
+#include <AzCore/Math/Uuid.h>
+#include <ScriptCanvas/Core/Core.h>
+
+namespace ScriptCanvasEditor
+{
+    class SourceHandle
+    {
+    public:
+        AZ_TYPE_INFO(SourceHandle, "{65855A98-AE2F-427F-BFC8-69D45265E312}");
+        AZ_CLASS_ALLOCATOR(SourceHandle, AZ::SystemAllocator, 0);
+
+        SourceHandle() = default;
+
+        SourceHandle(ScriptCanvas::DataPtr graph, const AZ::Uuid& id, AZStd::string_view path);
+
+        void Clear();
+
+        GraphPtrConst Get() const;
+
+        const AZ::Uuid& Id() const;
+
+        bool IsValid() const;
+
+        GraphPtr Mod() const;
+
+        operator bool() const;
+
+        bool operator!() const;
+
+        const AZStd::string& Path() const;
+                
+    private:
+        ScriptCanvas::DataPtr m_data;
+        AZ::Uuid m_id = AZ::Uuid::CreateNull();
+        AZStd::string m_path;
+    };
+} 

Gems/ScriptCanvas/Code/Editor/Include/ScriptCanvas/Bus/RequestBus.h

@@ -126,7 +126,7 @@ namespace ScriptCanvasEditor
         virtual void DisconnectEndpoints(const AZ::EntityId& /*sceneId*/, const AZStd::vector<GraphCanvas::Endpoint>& /*endpoints*/) {}
 
         virtual void PostUndoPoint(ScriptCanvas::ScriptCanvasId) = 0;
-        virtual void SignalSceneDirty(AZ::Data::AssetId) = 0;
+        virtual void SignalSceneDirty(SourceHandle) = 0;
 
         // Increment the value of the ignore undo point tracker
         virtual void PushPreventUndoStateUpdate() = 0;

Gems/ScriptCanvas/Code/Editor/Include/ScriptCanvas/Components/EditorGraph.h

@@ -101,6 +101,8 @@ namespace ScriptCanvasEditor
     public:
         AZ_COMPONENT(Graph, "{4D755CA9-AB92-462C-B24F-0B3376F19967}", ScriptCanvas::Graph);
 
+        static ScriptCanvas::DataPtr Create();
+
         static void Reflect(AZ::ReflectContext* context);
 
         Graph(const ScriptCanvas::ScriptCanvasId& scriptCanvasId = AZ::Entity::MakeId())