Move stuff out from Views and Presenters in Drawing/Inspector

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Inspector/GraphInspectorPresenter.cs

+using System;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Graphing;
+
+namespace UnityEditor.MaterialGraph.Drawing.Inspector
+{
+    public class GraphInspectorPresenter : ScriptableObject
+    {
+        public IGraph graph { get; set; }
+
+        public string assetName { get; set; }
+
+        public List<INode> selectedNodes { get; set; }
+
+        [Flags]
+        public enum ChangeType
+        {
+            Graph = 1 << 0,
+            SelectedNodes = 1 << 1,
+            AssetName = 1 << 2,
+            All = -1
+        }
+
+        public delegate void OnChange(ChangeType changeType);
+
+        public OnChange onChange;
+
+        public void Initialize(string assetName, IGraph graph)
+        {
+            this.graph = graph;
+            this.assetName = assetName;
+            selectedNodes = new List<INode>();
+
+            Change(ChangeType.Graph | ChangeType.SelectedNodes | ChangeType.AssetName);
+        }
+
+        public void UpdateSelection(IEnumerable<INode> nodes)
+        {
+            selectedNodes.Clear();
+            selectedNodes.AddRange(nodes);
+
+            Change(ChangeType.SelectedNodes);
+        }
+
+        void Change(ChangeType changeType)
+        {
+            if (onChange != null)
+                onChange(changeType);
+        }
+    }
+}

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Inspector/Presenters.meta

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-guid: 2d08dfb360644031a5e64558d4a93263
-timeCreated: 1503663071

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Inspector/Views.meta

-fileFormatVersion: 2
-guid: 0969ff891b874694aa732e1240ee159b
-timeCreated: 1503663067