Move framing shortcuts to GraphView.

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/AbstractMaterialGraphEditWindow.cs

                     m_GraphEditorView.onConvertToSubgraphClick += ToSubGraph;
                     m_GraphEditorView.onShowInProjectClick += PingAsset;
                     m_GraphEditorView.RegisterCallback<PostLayoutEvent>(OnPostLayout);
-                    m_GraphEditorView.RegisterCallback<AttachToPanelEvent, GraphEditorView>(OnEnterPanel, m_GraphEditorView);
-                    m_GraphEditorView.RegisterCallback<DetachFromPanelEvent, GraphEditorView>(OnLeavePanel, m_GraphEditorView);
 
                     rootVisualContainer.Add(graphEditorView);
                 }
         {
             graphEditorView.UnregisterCallback<PostLayoutEvent>(OnPostLayout);
             graphEditorView.graphView.FrameAll();
-        }
-
-        void OnEnterPanel(AttachToPanelEvent e, GraphEditorView view)
-        {
-            VisualElement rootVisualContainer = UIElementsEntryPoint.GetRootVisualContainer(this);
-            rootVisualContainer.parent.AddManipulator(view.shortcutHandler);
-        }
-
-        void OnLeavePanel(DetachFromPanelEvent e, GraphEditorView view)
-        {
-            VisualElement rootVisualContainer = UIElementsEntryPoint.GetRootVisualContainer(this);
-            rootVisualContainer.parent.RemoveManipulator(view.shortcutHandler);
         }
     }
 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Views/GraphEditorView.cs

             set { m_PreviewSystem = value; }
         }
 
-        public ShortcutHandler shortcutHandler { get; set; }
-
         public GraphEditorView(AbstractMaterialGraph graph, HelperMaterialGraphEditWindow container, string assetName)
         {
             AddStyleSheetPath("Styles/MaterialGraph");
                 m_GraphView = new MaterialGraphView { name = "GraphView", presenter = m_GraphPresenter };
                 m_GraphInspectorView = new GraphInspectorView(assetName, previewSystem, graph) { name = "inspector" };
                 m_GraphPresenter.onSelectionChanged += m_GraphInspectorView.UpdateSelection;
-
-                shortcutHandler = new ShortcutHandler(
-                    new Dictionary<Event, ShortcutDelegate>
-                    {
-                        { Event.KeyboardEvent("a"), m_GraphView.FrameAll },
-                        { Event.KeyboardEvent("o"), m_GraphView.FrameOrigin },
-                        { Event.KeyboardEvent("["), m_GraphView.FramePrev },
-                        { Event.KeyboardEvent("]"), m_GraphView.FrameNext }
-                    });
 
                 content.Add(m_GraphView);
                 content.Add(m_GraphInspectorView);

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Views/MaterialGraphView.cs

 
             AddStyleSheetPath("Styles/MaterialGraph");
 
-            serializeCopyPasteData = SerializeCopyPasteDataImplementation;
+            serializeGraphElements = SerializeGraphElementsImplementation;
+
+            isReframable = true;
         }
 
         public bool CanAddToNodeMenu(Type type)
             PropagateSelection();
         }
 
-        string SerializeCopyPasteDataImplementation(IEnumerable<GraphElement> elements)
+        string SerializeGraphElementsImplementation(IEnumerable<GraphElement> elements)
         {
             var graph = CreateCopyPasteGraph(elements);
             return JsonUtility.ToJson(graph, true);