Import blackboard to project, still WIP

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

                 m_GraphView.AddManipulator(new RectangleSelector());
                 m_GraphView.AddManipulator(new ClickSelector());
                 m_GraphView.AddManipulator(new GraphDropTarget(graph));
+                m_GraphView.RegisterCallback<KeyDownEvent>(OnSpaceDown);
                 content.Add(m_GraphView);
 
                 m_GraphInspectorView = new GraphInspectorView(assetName, previewManager, graph) { name = "inspector" };
-
-                m_GraphView.RegisterCallback<KeyDownEvent>(OnSpaceDown);
-
+
+                m_BlackboardProvider = new BlackboardProvider(assetName, graph);
+                m_GraphView.Add(m_BlackboardProvider.blackboard);
 
                 m_GraphView.graphViewChanged = GraphViewChanged;
             }
             previewManager.HandleGraphChanges();
             previewManager.RenderPreviews();
             inspectorView.HandleGraphChanges();
+            m_BlackboardProvider.HandleGraphChanges();
 
             foreach (var node in m_Graph.removedNodes)
             {
         }
 
         Stack<MaterialNodeView> m_NodeStack = new Stack<MaterialNodeView>();
+        BlackboardProvider m_BlackboardProvider;
 
         void UpdateEdgeColors(HashSet<MaterialNodeView> nodeViews)
         {

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Blackboard.meta

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+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Resources/GraphView.meta

+fileFormatVersion: 2
+guid: 80f811e405d64564b1c671c9813ea9a9
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+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Resources/Styles/Blackboard.uss

+.sgblackboard {
+    position-type:absolute;
+    border-left-width: 1;
+    border-top-width: 1;
+    border-right-width: 1;
+    border-bottom-width: 1;
+    border-radius: 5;
+    flex-direction: column;
+    background-color: #2b2b2b;
+    border-color: #191919;
+    min-width: 100;
+    min-height: 100;
+}
+
+.sgblackboard * {
+    font-size: 12;
+}
+
+.sgblackboard.scrollable {
+    position-type: manual;
+}
+
+.sgblackboard.selected {
+    border-color: #44C0FF;
+}
+
+.sgblackboard > .mainContainer {
+    flex-direction: column;
+    align-items: stretch;
+}
+
+.sgblackboard.scrollable > .mainContainer {
+    position-type: absolute;
+    position-top:0;
+    position-left:0;
+    position-right:0;
+    position-bottom:0;
+}
+
+.sgblackboard > .mainContainer > #content {
+    flex-direction: column;
+    align-items: stretch;
+}
+
+.sgblackboard.scrollable > .mainContainer > #content {
+    position-type: absolute;
+    position-top:0;
+    position-left:0;
+    position-right:0;
+    position-bottom:0;
+    flex-direction: column;
+    align-items: stretch;
+}
+
+.sgblackboard > .mainContainer > #content > ScrollView {
+    flex: 1;
+}
+
+.sgblackboard > .mainContainer > #content > ScrollView #ContentView {
+    position-left:0;
+    position-right:0;
+}
+
+.sgblackboard > .mainContainer > #content > #contentContainer {
+    min-height: 50;
+    padding-left: 0;
+    padding-top: 0;
+    padding-right: 0;
+    padding-bottom: 6;
+    flex-direction: column;
+    align-items: stretch;
+}
+
+.sgblackboard > .mainContainer > #content > #header {
+    flex-direction: row;
+    align-items: stretch;
+    background-color: #393939;
+    border-bottom-width: 1;
+    border-color: #212121;
+    border-top-right-radius: 4;
+    border-top-left-radius: 4;
+    padding-left: 1;
+    padding-top: 4;
+    padding-bottom: 2;
+}
+
+.sgblackboard > .mainContainer > #content > #header > #labelContainer {
+    flex: 1;
+    flex-direction: column;
+    align-items: stretch;
+}
+
+.sgblackboard > .mainContainer > #content > #header > #addButton {
+    align-self:center;
+    font-size: 20px;
+    background-image: none;
+    padding-left: 0;
+    padding-top: 0;
+    padding-right: 0;
+    padding-bottom: 0;
+}
+
+.sgblackboard > .mainContainer > #content > #header > #addButton:hover {
+    background-image: resource("Builtin Skins/DarkSkin/Images/btn.png");
+}
+
+.sgblackboard > .mainContainer > #content > #header > #addButton:hover:active {
+    background-image: resource("Builtin Skins/DarkSkin/Images/btn act.png");
+}
+
+.sgblackboard > .mainContainer > #content > #header > #labelContainer > #titleLabel {
+    font-size : 14;
+    text-color: #c1c1c1;
+}
+
+.sgblackboard > .mainContainer > #content > #header > #labelContainer > #subTitleLabel {
+    font-size: 11;
+    text-color: #606060;
+}
+
+.sgblackboardSection {
+    padding-left: 0;
+    padding-right: 0;
+    padding-bottom: 0;
+    padding-top: 0;
+}
+
+.sgblackboardSection  > .mainContainer > #sectionHeader {
+    flex-direction: row;
+    align-items: stretch;
+}
+
+.sgblackboardSection > .mainContainer > #sectionHeader > #sectionTitleLabel {
+    text-color: #606060;
+    font-size: 11;
+}
+
+.sgblackboardSection > #dragIndicator {
+    background-color: #44C0FF;
+    min-height: 2;
+}
+
+.sgblackboardRow {
+    padding-left: 4;
+    padding-right: 8;
+}
+
+.sgblackboardRow  > .mainContainer > #root > #itemRow {
+    flex-direction: row;
+}
+
+.sgblackboardRow > .mainContainer > #root > #itemRow > #itemRowContentContainer {
+    flex: 1;
+    align-items: stretch;
+}
+
+.sgblackboardRow > .mainContainer > #root > #itemRow > #itemRowContentContainer > #itemContainer {
+    flex-direction: row;
+    align-items: stretch;
+}
+
+.sgblackboardRow > .mainContainer > #root > #itemRow > #expandButton {
+    align-self: center;
+    background-image: none;
+    border-left: 0;
+    border-top: 0;
+    border-right: 0;
+    border-bottom: 0;
+    margin-left: 0;
+    margin-top: 0;
+    margin-right: 0;
+    margin-bottom: 0;
+    padding-left: 0;
+    padding-top: 0;
+    padding-right: 0;
+    padding-bottom: 0;
+}
+
+.sgblackboardRow > .mainContainer > #root > #itemRow > #expandButton > #buttonImage {
+    image : resource("GraphView/Nodes/NodeChevronRight");
+    width: 12;
+    height: 12;
+}
+
+.sgblackboardRow.expanded > .mainContainer > #root > #itemRow > #expandButton > #buttonImage {
+    image : resource("GraphView/Nodes/NodeChevronDown");
+}
+
+.sgblackboardRow > .mainContainer > #root > #itemRow > #expandButton:hover > #buttonImage {
+    background-color: #212121;
+    border-radius: 1;
+}
+
+.sgblackboardRow > .mainContainer > #root > #propertyViewContainer {
+}
+
+.sgblackboardField {
+    flex: 1;
+    flex-direction: row;
+    align-items: stretch;
+}
+
+.sgblackboardField > .mainContainer {
+    flex: 1;
+    flex-direction: row;
+    align-items: stretch;
+}
+
+.sgblackboardField > .mainContainer > #contentItem {
+    flex: 1;
+    flex-direction: row;
+    align-items: stretch;
+}
+
+.sgblackboardField > .mainContainer > #textField {
+    position-type: absolute;
+    position-top:0;
+    position-left:0;
+    position-right:0;
+    position-bottom:0;
+    text-alignment:middle-left;
+    font-size:11;
+}
+
+.sgblackboardField > .mainContainer > #contentItem > #typeLabel {
+    flex: 1;
+    flex: 1;
+    text-align: right;
+    text-alignment:middle-right;
+    text-color: #808080;
+    font-size:11;
+}
+
+.sgblackboardField > .mainContainer > #contentItem > #pill {
+    flex-direction: row;
+    align-items: stretch;
+    background-color: #252525;
+    border-radius:40;
+    border-color: #272727;
+    padding-left: 8;
+    padding-top: 3;
+    padding-bottom: 3;
+    padding-right: 8;
+    border-bottom-width: 1;
+    margin-left: 4;
+    margin-top: 2;
+    margin-bottom: 2;
+}
+
+.sgblackboardField:hover > .mainContainer > #contentItem > #pill {
+    border-color: rgba(68, 192, 255, 0.5);
+    border-left-width: 1;
+    border-top-width: 1;
+    border-right-width: 1;
+    border-bottom-width: 1;
+    padding-left: 7;
+    padding-top: 2;
+    padding-bottom: 3;
+    padding-right: 7;
+}
+
+.sgblackboardField.selected > .mainContainer > #contentItem > #pill {
+    border-color: #44C0FF;
+    border-left-width: 2;
+    border-top-width: 2;
+    border-right-width: 2;
+    border-bottom-width: 2;
+    padding-left: 6;
+    padding-top: 1;
+    padding-bottom: 2;
+    padding-right: 7;
+}
+
+.sgblackboardField > .mainContainer > #contentItem > #pill > #borderItem {
+    position-type: absolute;
+    position-top: 0;
+    position-left: 1;
+    position-right: 1;
+    position-bottom: 1;
+    border-radius: 40;
+    background-color: #606061;
+    border-color: #252525;
+    border-left-width: 1;
+    border-top-width: 1;
+    border-right-width: 1;
+    border-bottom-width: 1;
+}
+
+.sgblackboardField > .mainContainer > #contentItem > #pill > #backgroundItem {
+    position-type: absolute;
+    position-top:2;
+    position-left: 1;
+    position-right: 1;
+    position-bottom: 1;
+    border-radius: 40;
+    background-image: resource("GraphView/Nodes/BlackboardFieldPillBackground");
+}
+
+.sgblackboardField > .mainContainer > #contentItem > #pill > #iconItem {
+    align-self: center;
+    width: 6;
+    height: 6;
+}
+
+.sgblackboardField.noIcon > .mainContainer > #contentItem > #pill > #iconItem {
+    width: 0;
+    height: 0;
+}
+
+.sgblackboardField > .mainContainer > #contentItem > #pill > #textLabel {
+    font-size: 11;
+}
+
+.sgblackboardFieldPropertyView > .rowView {
+    flex-direction: row;
+    padding-left: 10;
+    padding-right: 2;
+    padding-top: 2;
+    padding-bottom: 2;
+}
+
+.sgblackboardFieldPropertyView > .rowView > .rowViewLabel {
+    min-width: 50;
+    font-size: 11;
+}
+
+.sgblackboardFieldPropertyView > .rowView > .rowViewControl {
+    flex: 1;
+}

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Resources/Styles/Blackboard.uss.meta

+fileFormatVersion: 2
+guid: 4f42f44b7f2b460c8df9259abc33d3cf
+ScriptedImporter:
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
+  script: {fileID: 12385, guid: 0000000000000000e000000000000000, type: 0}

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Resources/UXML.meta

+fileFormatVersion: 2
+guid: e14441797a82fb84fb4e43064342bcb5
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
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MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Blackboard/Blackboard.cs

+using System;
+using System.Collections.Generic;
+using UnityEditor.Experimental.UIElements.GraphView;
+using UnityEngine;
+using UnityEngine.Experimental.UIElements;
+using UnityEngine.Experimental.UIElements.StyleEnums;
+
+namespace UnityEditor.ShaderGraph.Drawing
+{
+    class Blackboard : GraphElement
+    {
+        private const int k_DefaultWidth = 200;
+        private const float k_DefaultHeight = 400;
+        private VisualElement m_MainContainer;
+        private VisualElement m_Root;
+        private Label m_TitleLabel;
+        private Label m_SubTitleLabel;
+        private ScrollView m_ScrollView;
+        private VisualElement m_ContentContainer;
+        private VisualElement m_HeaderItem;
+        private Button m_AddButton;
+        private bool m_Scrollable = true;
+
+        public Action<Blackboard> addItemRequested { get; set; }
+        public Action<Blackboard, int, VisualElement> moveItemRequested { get; set; }
+        public Action<Blackboard, VisualElement, string> editTextRequested { get; set; }
+
+        public string title
+        {
+            get { return m_TitleLabel.text; }
+            set { m_TitleLabel.text = value; }
+        }
+
+        public string subTitle
+        {
+            get { return m_SubTitleLabel.text; }
+            set { m_SubTitleLabel.text = value; }
+        }
+
+        public override VisualElement contentContainer { get { return m_ContentContainer; } }
+
+        public bool scrollable
+        {
+            get
+            {
+                return m_Scrollable;
+            }
+            set
+            {
+                if (m_Scrollable == value)
+                    return;
+
+                m_Scrollable = value;
+
+                if (m_Scrollable)
+                {
+                    if (m_ScrollView == null)
+                    {
+                        m_ScrollView = new ScrollView();
+//                        m_ScrollView.stretchContentWidth = true;
+                    }
+
+                    // Remove the sections container from the content item and add it to the scrollview
+                    m_ContentContainer.RemoveFromHierarchy();
+                    m_Root.Add(m_ScrollView);
+                    m_ScrollView.Add(m_ContentContainer);
+                    style.positionType = PositionType.Manual; // As both the width and height can be changed by the user using a resizer
+
+                    // If the current the current geometry is invalid then set a default size
+
+                    if (layout.width == 0 || layout.height == 0)
+                    {
+                        layout = new Rect(layout.x, layout.y, layout.width == 0 ? k_DefaultWidth : layout.width, layout.height == 0 ? k_DefaultHeight : layout.height);
+                    }
+
+                    AddToClassList("scrollable");
+                }
+                else
+                {
+                    if (m_ScrollView != null)
+                    {
+                        // Remove the sections container from the scrollview and add it to the content item
+                        style.positionType = PositionType.Absolute; // As the height is automatically computed from the content but the width can be changed by the user using a resizer
+                        m_ScrollView.RemoveFromHierarchy();
+                        m_ContentContainer.RemoveFromHierarchy();
+                        m_Root.Add(m_ContentContainer);
+                    }
+                    RemoveFromClassList("scrollable");
+                }
+            }
+        }
+
+        public Blackboard()
+        {
+            AddStyleSheetPath("Styles/Blackboard");
+            var tpl = AssetDatabase.LoadAssetAtPath<VisualTreeAsset>("Assets/UnityShaderEditor/Editor/Resources/UXML/GraphView/Blackboard.uxml");
+
+            m_MainContainer = tpl.CloneTree(null);
+            m_MainContainer.AddToClassList("mainContainer");
+
+            m_Root = m_MainContainer.Q("content");
+
+            m_HeaderItem = m_MainContainer.Q("header");
+            m_HeaderItem.AddToClassList("blackboardHeader");
+
+            m_AddButton = m_MainContainer.Q(name: "addButton") as Button;
+            m_AddButton.clickable.clicked += () => {
+                    if (addItemRequested != null)
+                    {
+                        addItemRequested(this);
+                    }
+                };
+
+            m_TitleLabel = m_MainContainer.Q<Label>(name: "titleLabel");
+            m_SubTitleLabel = m_MainContainer.Q<Label>(name: "subTitleLabel");
+            m_ContentContainer = m_MainContainer.Q<VisualElement>(name: "contentContainer");
+
+            shadow.Add(m_MainContainer);
+
+            capabilities |= Capabilities.Movable | Capabilities.Resizable;
+            clippingOptions = ClippingOptions.ClipAndCacheContents;
+
+            ClearClassList();
+            AddToClassList("sgblackboard");
+
+            this.AddManipulator(new Dragger { clampToParentEdges = true });
+
+            scrollable = false;
+
+            shadow.Add(new Resizer());
+        }
+    }
+}

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Blackboard/Blackboard.cs.meta

+fileFormatVersion: 2
+guid: 4312a96008ca8754593210fc93a4575d
+MonoImporter:
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+  serializedVersion: 2
+  defaultReferences: []
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+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Blackboard/BlackboardField.cs

+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using UnityEditor.Experimental.UIElements.GraphView;
+using UnityEngine;
+using UnityEngine.Experimental.UIElements;
+
+namespace UnityEditor.ShaderGraph.Drawing
+{
+    class BlackboardField : GraphElement
+    {
+        private VisualElement m_ContentItem;
+        private Image m_Icon;
+        private Label m_TextLabel;
+        private TextField m_TextField;
+        private Label m_TypeLabel;
+        private bool m_EditTitleCancelled = false;
+        SelectionDropper m_SelectionDropper;
+
+        public string text
+        {
+            get { return m_TextLabel.text; }
+            set { m_TextLabel.text = value; }
+        }
+
+        public string typeText
+        {
+            get { return m_TypeLabel.text; }
+            set { m_TypeLabel.text = value; }
+        }
+
+        public Texture icon
+        {
+            get { return m_Icon.image; }
+            set
+            {
+                m_Icon.image = value;
+
+                if (value == null)
+                {
+                    AddToClassList("noIcon");
+                    m_Icon.visible = false;
+                }
+                else
+                {
+                    RemoveFromClassList("noIcon");
+                    m_Icon.visible = true;
+                }
+            }
+        }
+
+        public BlackboardField()
+            : this(null, "", "") { }
+
+        public BlackboardField(Texture icon, string text, string typeText)
+        {
+            var tpl = AssetDatabase.LoadAssetAtPath<VisualTreeAsset>("Assets/UnityShaderEditor/Editor/Resources/UXML/GraphView/BlackboardField.uxml");
+            VisualElement mainContainer = tpl.CloneTree(null);
+
+            mainContainer.AddToClassList("mainContainer");
+            mainContainer.pickingMode = PickingMode.Ignore;
+
+            m_ContentItem = mainContainer.Q("contentItem");
+
+            m_TextLabel = mainContainer.Q<Label>("textLabel");
+            m_Icon = mainContainer.Q<Image>("iconItem");
+            m_TypeLabel = mainContainer.Q<Label>("typeLabel");
+
+            m_TextField = mainContainer.Q<TextField>("textField");
+            m_TextField.visible = false;
+            m_TextField.RegisterCallback<FocusOutEvent>(e => { OnEditTextFinished(); });
+            m_TextField.RegisterCallback<KeyDownEvent>(OnTextFieldKeyPressed);
+
+            Add(mainContainer);
+
+            RegisterCallback<MouseDownEvent>(OnMouseDownEvent);
+
+            capabilities |= Capabilities.Selectable | Capabilities.Droppable | Capabilities.Deletable;
+
+            ClearClassList();
+            AddToClassList("sgblackboardField");
+
+            this.text = text;
+            this.icon = icon;
+            this.typeText = typeText;
+
+            m_SelectionDropper = new SelectionDropper(Handler);
+            typeof(SelectionDropper).GetFields(BindingFlags.NonPublic | BindingFlags.Instance).FirstOrDefault(f => f.Name == "m_Active").SetValue(m_SelectionDropper, false);
+            this.AddManipulator(m_SelectionDropper);
+            RegisterCallback<MouseUpEvent>(OnMouseUp);
+        }
+
+        void OnMouseUp(MouseUpEvent evt)
+        {
+            if (evt.button == 1)
+            {
+                var gm = new GenericMenu();
+
+                gm.AddItem(new GUIContent("Rename"), false, RenameGo);
+
+                gm.ShowAsContext();
+                evt.StopPropagation();
+                evt.PreventDefault();
+            }
+        }
+
+        void Handler(IMGUIEvent evt, List<ISelectable> selection, IDropTarget dropTarget)
+        {
+        }
+
+        private void OnTextFieldKeyPressed(KeyDownEvent e)
+        {
+            switch (e.keyCode)
+            {
+                case KeyCode.Escape:
+                    m_EditTitleCancelled = true;
+                    m_TextField.Blur();
+                    break;
+                case KeyCode.Return:
+                case KeyCode.KeypadEnter:
+                    m_TextField.Blur();
+                    break;
+                default:
+                    break;
+            }
+        }
+
+        private void OnEditTextFinished()
+        {
+            m_ContentItem.visible = true;
+            m_TextField.visible = false;
+
+            if (!m_EditTitleCancelled && (text != m_TextField.text))
+            {
+                Blackboard blackboard = GetFirstAncestorOfType<Blackboard>();
+
+                if (blackboard.editTextRequested != null)
+                {
+                    blackboard.editTextRequested(blackboard, this, m_TextField.text);
+                }
+                else
+                {
+                    text = m_TextField.text;
+                }
+            }
+
+            m_EditTitleCancelled = false;
+        }
+
+        private void OnMouseDownEvent(MouseDownEvent e)
+        {
+            if ((e.clickCount == 2) && e.button == (int)MouseButton.LeftMouse)
+            {
+                RenameGo();
+                e.PreventDefault();
+            }
+        }
+
+        internal void RenameGo()
+        {
+            m_TextField.text = text;
+            m_TextField.visible = true;
+            m_ContentItem.visible = false;
+            m_TextField.Focus();
+            m_TextField.SelectAll();
+        }
+    }
+}

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Blackboard/BlackboardField.cs.meta

+fileFormatVersion: 2
+guid: 353b195797b2ff24092e20c643077f2f
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
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+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Blackboard/BlackboardFieldPropertyView.cs

+using System;
+using UnityEditor.Experimental.UIElements;
+using UnityEditor.Graphing;
+using UnityEngine;
+using UnityEngine.Experimental.UIElements;
+
+namespace UnityEditor.ShaderGraph.Drawing
+{
+    class BlackboardFieldPropertyView : VisualElement
+    {
+        readonly AbstractMaterialGraph m_Graph;
+
+        public BlackboardFieldPropertyView(AbstractMaterialGraph graph, IShaderProperty property)
+        {
+            m_Graph = graph;
+            if (property is FloatShaderProperty)
+            {
+                var floatProperty = (FloatShaderProperty)property;
+                var field = new FloatField { value = floatProperty.value };
+                field.OnValueChanged(evt =>
+                {
+                    floatProperty.value = (float)evt.newValue;
+                    DirtyNodes();
+                });
+                AddRow("Default", field);
+            }
+            else if (property is Vector2ShaderProperty)
+            {
+                var vectorProperty = (Vector2ShaderProperty)property;
+                var field = new Vector2Field { value = vectorProperty.value };
+                field.OnValueChanged(evt =>
+                {
+                    vectorProperty.value = evt.newValue;
+                    DirtyNodes();
+                });
+                AddRow("Default", field);
+            }
+            else if (property is Vector3ShaderProperty)
+            {
+                var vectorProperty = (Vector3ShaderProperty)property;
+                var field = new Vector3Field { value = vectorProperty.value };
+                field.OnValueChanged(evt =>
+                {
+                    vectorProperty.value = evt.newValue;
+                    DirtyNodes();
+                });
+                AddRow("Default", field);
+            }
+            else if (property is Vector4ShaderProperty)
+            {
+                var vectorProperty = (Vector4ShaderProperty)property;
+                var field = new Vector4Field { value = vectorProperty.value };
+                field.OnValueChanged(evt =>
+                {
+                    vectorProperty.value = evt.newValue;
+                    DirtyNodes();
+                });
+                AddRow("Default", field);
+            }
+            else if (property is ColorShaderProperty)
+            {
+                var colorProperty = (ColorShaderProperty)property;
+                var field = new ColorField { value = property.defaultValue, hdr = colorProperty.HDR };
+                field.OnValueChanged(evt =>
+                {
+                    colorProperty.value = evt.newValue;
+                    DirtyNodes();
+                });
+                AddRow("Default", field);
+            }
+            else if (property is TextureShaderProperty)
+            {
+                var textureProperty = (TextureShaderProperty)property;
+                var field = new ObjectField { value = textureProperty.value.texture, objectType = typeof(Texture) };
+                field.OnValueChanged(evt =>
+                {
+                    textureProperty.value.texture = (Texture)evt.newValue;
+                    DirtyNodes();
+                });
+                AddRow("Default", field);
+            }
+            else if (property is CubemapShaderProperty)
+            {
+                var cubemapProperty = (CubemapShaderProperty)property;
+                var field = new ObjectField { value = cubemapProperty.value.cubemap, objectType = typeof(Cubemap) };
+                field.OnValueChanged(evt =>
+                {
+                    cubemapProperty.value.cubemap = (Cubemap)evt.newValue;
+                    DirtyNodes();
+                });
+                AddRow("Default", field);
+            }
+//            AddRow("Type", new TextField());
+//            AddRow("Exposed", new Toggle(null));
+//            AddRow("Range", new Toggle(null));
+//            AddRow("Default", new TextField());
+//            AddRow("Tooltip", new TextField());
+
+            AddToClassList("sgblackboardFieldPropertyView");
+        }
+
+        void AddRow(string labelText, VisualElement control)
+        {
+            VisualElement rowView = new VisualElement();
+
+            rowView.AddToClassList("rowView");
+
+            Label label = new Label(labelText);
+
+            label.AddToClassList("rowViewLabel");
+            rowView.Add(label);
+
+            control.AddToClassList("rowViewControl");
+            rowView.Add(control);
+
+            Add(rowView);
+        }
+
+        void DirtyNodes()
+        {
+            foreach (var node in m_Graph.GetNodes<PropertyNode>())
+                node.Dirty(ModificationScope.Node);
+        }
+    }
+}

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Blackboard/BlackboardFieldPropertyView.cs.meta

+fileFormatVersion: 2
+guid: d71f7c86172344198783dacd26515c28
+timeCreated: 1516704904

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Blackboard/BlackboardProvider.cs

+using System;
+using System.Collections.Generic;
+using UnityEditor.Graphing;
+using UnityEditor.ShaderGraph.Drawing.Inspector;
+using UnityEngine;
+using UnityEngine.Experimental.UIElements;
+
+namespace UnityEditor.ShaderGraph.Drawing
+{
+    class BlackboardProvider
+    {
+        readonly string m_AssetName;
+        readonly AbstractMaterialGraph m_Graph;
+        readonly Texture2D m_ExposedIcon;
+        readonly Dictionary<Guid, BlackboardRow> m_PropertyRows;
+        readonly BlackboardSection m_Section;
+        public Blackboard blackboard { get; private set; }
+        public Action updateAssetRequested { get; set; }
+
+        public BlackboardProvider(string assetName, AbstractMaterialGraph graph)
+        {
+            m_AssetName = assetName;
+            m_Graph = graph;
+            m_ExposedIcon = Resources.Load("GraphView/Nodes/BlackboardFieldExposed") as Texture2D;
+            m_PropertyRows = new Dictionary<Guid, BlackboardRow>();
+
+            blackboard = new Blackboard()
+            {
+                scrollable = true,
+                title = assetName,
+                editTextRequested = EditTextRequested,
+                addItemRequested = AddItemRequested,
+                moveItemRequested = MoveItemRequested
+            };
+
+            m_Section = new BlackboardSection { headerVisible = false };
+            m_Section.Add(new Button(OnClickSave) { text = "Save" });
+            foreach (var property in graph.properties)
+                AddProperty(property);
+            blackboard.Add(m_Section);
+        }
+
+        void MoveItemRequested(Blackboard blackboard, int i, VisualElement visualElement)
+        {
+            Debug.Log(i);
+        }
+
+        void AddItemRequested(Blackboard blackboard)
+        {
+            var gm = new GenericMenu();
+            gm.AddItem(new GUIContent("Float"), false, () => AddProperty(new FloatShaderProperty(), true));
+            gm.AddItem(new GUIContent("Vector2"), false, () => AddProperty(new Vector2ShaderProperty(), true));
+            gm.AddItem(new GUIContent("Vector3"), false, () => AddProperty(new Vector3ShaderProperty(), true));
+            gm.AddItem(new GUIContent("Vector4"), false, () => AddProperty(new Vector4ShaderProperty(), true));
+            gm.AddItem(new GUIContent("Color"), false, () => AddProperty(new ColorShaderProperty(), true));
+            gm.AddItem(new GUIContent("Texture"), false, () => AddProperty(new TextureShaderProperty(), true));
+            gm.AddItem(new GUIContent("Cubemap"), false, () => AddProperty(new CubemapShaderProperty(), true));
+            gm.ShowAsContext();
+        }
+
+        void EditTextRequested(Blackboard blackboard, VisualElement visualElement, string newText)
+        {
+            var field = (BlackboardField)visualElement;
+            var property = (IShaderProperty)field.userData;
+            if (newText != property.displayName)
+            {
+                property.displayName = newText;
+                field.text = newText;
+                DirtyNodes();
+            }
+        }
+
+        void OnClickSave()
+        {
+            if (updateAssetRequested != null)
+                updateAssetRequested();
+        }
+
+        public void HandleGraphChanges()
+        {
+            foreach (var propertyGuid in m_Graph.removedProperties)
+            {
+                BlackboardRow row;
+                if (m_PropertyRows.TryGetValue(propertyGuid, out row))
+                {
+                    row.RemoveFromHierarchy();
+                    m_PropertyRows.Remove(propertyGuid);
+                }
+            }
+
+            foreach (var property in m_Graph.addedProperties)
+                AddProperty(property);
+        }
+
+        void AddProperty(IShaderProperty property, bool focus = false)
+        {
+            if (m_PropertyRows.ContainsKey(property.guid))
+                throw new ArgumentException("Property already exists");
+            var field = new BlackboardField(m_ExposedIcon, property.displayName, property.propertyType.ToString()) { userData = property };
+            var row = new BlackboardRow(field, new BlackboardFieldPropertyView(m_Graph, property));
+            m_Section.Add(row);
+            m_PropertyRows[property.guid] = row;
+
+            if (focus)
+                field.RenameGo();
+        }
+
+        void DirtyNodes()
+        {
+            foreach (var node in m_Graph.GetNodes<PropertyNode>())
+                node.Dirty(ModificationScope.Node);
+        }
+    }
+}

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Blackboard/BlackboardProvider.cs.meta

+fileFormatVersion: 2
+guid: 4bfb865d7a5e403682e681321336d241
+timeCreated: 1516713025

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Blackboard/BlackboardRow.cs

+using System;
+using UnityEditor.Experimental.UIElements.GraphView;
+using UnityEngine;
+using UnityEngine.Experimental.UIElements;
+
+namespace UnityEditor.ShaderGraph.Drawing
+{
+    class BlackboardRow : GraphElement
+    {
+        private VisualElement m_Root;
+        private Button m_ExpandButton;
+        private VisualElement m_ItemContainer;
+        private VisualElement m_PropertyViewContainer;
+        private bool m_Expanded = true;
+
+        public bool expanded
+        {
+            get { return m_Expanded; }
+            set
+            {
+                if (m_Expanded == value)
+                {
+                    return;
+                }
+
+                m_Expanded = value;
+
+                if (m_Expanded)
+                {
+                    m_Root.Add(m_PropertyViewContainer);
+                    AddToClassList("expanded");
+                }
+                else
+                {
+                    m_Root.Remove(m_PropertyViewContainer);
+                    RemoveFromClassList("expanded");
+                }
+            }
+        }
+
+        public BlackboardRow(VisualElement item, VisualElement propertyView)
+        {
+            var tpl = AssetDatabase.LoadAssetAtPath<VisualTreeAsset>("Assets/UnityShaderEditor/Editor/Resources/UXML/GraphView/BlackboardRow.uxml") as VisualTreeAsset;
+            VisualElement mainContainer = tpl.CloneTree(null);
+            mainContainer.AddToClassList("mainContainer");
+
+            m_Root = mainContainer.Q<VisualElement>("root");
+            m_ItemContainer = mainContainer.Q<VisualElement>("itemContainer");
+            m_PropertyViewContainer = mainContainer.Q<VisualElement>("propertyViewContainer");
+
+            m_ExpandButton = mainContainer.Q<Button>("expandButton");
+            m_ExpandButton.clickable.clicked += () => expanded = !expanded;
+
+            Add(mainContainer);
+
+            ClearClassList();
+            AddToClassList("sgblackboardRow");
+
+            m_ItemContainer.Add(item);
+            m_PropertyViewContainer.Add(propertyView);
+
+            expanded = false;
+        }
+    }
+}

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Blackboard/BlackboardRow.cs.meta

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MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Blackboard/BlackboardSection.cs

+using System;
+using System.Collections.Generic;
+using System.Linq;
+using UnityEditor.Experimental.UIElements.GraphView;
+using UnityEngine;
+using UnityEngine.Experimental.UIElements;
+using UnityEngine.Experimental.UIElements.StyleEnums;
+
+namespace UnityEditor.ShaderGraph.Drawing
+{
+    class BlackboardSection : GraphElement, IDropTarget
+    {
+        private VisualElement m_DragIndicator;
+        private VisualElement m_MainContainer;
+        private VisualElement m_Header;
+        private Label m_TitleLabel;
+        private VisualElement m_RowsContainer;
+        private int m_InsertIndex;
+
+        int InsertionIndex(Vector2 pos)
+        {
+            int index = -1;
+            VisualElement owner = contentContainer != null ? contentContainer : this;
+            Vector2 localPos = this.ChangeCoordinatesTo(owner, pos);
+
+            if (owner.ContainsPoint(localPos))
+            {
+                index = 0;
+
+                foreach (VisualElement child in Children())
+                {
+                    Rect rect = child.layout;
+
+                    if (localPos.y > (rect.y + rect.height / 2))
+                    {
+                        ++index;
+                    }
+                    else
+                    {
+                        break;
+                    }
+                }
+            }
+
+            return index;
+        }
+
+        VisualElement FindSectionDirectChild(VisualElement element)
+        {
+            VisualElement directChild = element;
+
+            while ((directChild != null) && (directChild != this))
+            {
+                if (directChild.parent == this)
+                {
+                    return directChild;
+                }
+                directChild = directChild.parent;
+            }
+
+            return null;
+        }
+
+        public BlackboardSection()
+        {
+            var tpl = AssetDatabase.LoadAssetAtPath<VisualTreeAsset>("Assets/UnityShaderEditor/Editor/Resources/UXML/GraphView/BlackboardSection.uxml") as VisualTreeAsset;
+            m_MainContainer = tpl.CloneTree(null);
+            m_MainContainer.AddToClassList("mainContainer");
+
+            m_Header = m_MainContainer.Q<VisualElement>("sectionHeader");
+            m_TitleLabel = m_MainContainer.Q<Label>("sectionTitleLabel");
+            m_RowsContainer = m_MainContainer.Q<VisualElement>("rowsContainer");
+
+            shadow.Add(m_MainContainer);
+
+            m_DragIndicator = new VisualElement();
+
+            m_DragIndicator.name = "dragIndicator";
+            m_DragIndicator.style.positionType = PositionType.Absolute;
+            shadow.Add(m_DragIndicator);
+
+            ClearClassList();
+            AddToClassList("sgblackboardSection");
+
+            m_InsertIndex = -1;
+        }
+
+        public override VisualElement contentContainer { get { return m_RowsContainer; } }
+
+        public string title
+        {
+            get { return m_TitleLabel.text; }
+            set { m_TitleLabel.text = value; }
+        }
+
+        public bool headerVisible
+        {
+            get { return m_Header.parent != null; }
+            set
+            {
+                if (value == (m_Header.parent != null))
+                    return;
+
+                if (value)
+                {
+                    m_MainContainer.Add(m_Header);
+                }
+                else
+                {
+                    m_MainContainer.Remove(m_Header);
+                }
+            }
+        }
+
+        private void SetDragIndicatorVisible(bool visible)
+        {
+            if (visible && (m_DragIndicator.parent == null))
+            {
+                shadow.Add(m_DragIndicator);
+                m_DragIndicator.visible = true;
+            }
+            else if ((visible == false) && (m_DragIndicator.parent != null))
+            {
+                shadow.Remove(m_DragIndicator);
+            }
+        }
+
+        public bool CanAcceptDrop(List<ISelectable> selection)
+        {
+            // Look for at least one selected element in this section to accept drop
+            foreach (ISelectable selected in selection)
+            {
+                VisualElement selectedElement = selected as VisualElement;
+
+                if (selected != null && Contains(selectedElement))
+                {
+                    return true;
+                }
+            }
+
+            return false;
+        }
+
+//        public bool DragUpdated(DragUpdatedEvent evt, IEnumerable<ISelectable> selection, IDropTarget dropTarget)
+        public EventPropagation DragUpdated(IMGUIEvent evt, IEnumerable<ISelectable> selection, IDropTarget dropTarget)
+        {
+            VisualElement sourceItem = null;
+
+            foreach (ISelectable selectedElement in selection)
+            {
+                sourceItem = selectedElement as VisualElement;
+
+                if (sourceItem == null)
+                    continue;
+            }
+
+            if (!Contains(sourceItem))
+            {
+                SetDragIndicatorVisible(false);
+
+                return EventPropagation.Continue;
+            }
+
+            var target = evt.target as VisualElement;
+//            Vector2 localPosition = target.ChangeCoordinatesTo(this, evt.localMousePosition);
+            Vector2 localPosition = target.ChangeCoordinatesTo(this, evt.imguiEvent.mousePosition);
+
+            m_InsertIndex = InsertionIndex(localPosition);
+
+            if (m_InsertIndex != -1)
+            {
+                float indicatorY = 0;
+
+                if (m_InsertIndex == childCount)
+                {
+                    VisualElement lastChild = this[childCount - 1];
+
+                    indicatorY = lastChild.ChangeCoordinatesTo(this, new Vector2(0, lastChild.layout.height + lastChild.style.marginBottom)).y;
+                }
+                else
+                {
+                    VisualElement childAtInsertIndex = this[m_InsertIndex];
+
+                    indicatorY = childAtInsertIndex.ChangeCoordinatesTo(this, new Vector2(0, -childAtInsertIndex.style.marginTop)).y;
+                }
+
+                SetDragIndicatorVisible(true);
+
+                m_DragIndicator.layout = new Rect(0, indicatorY - m_DragIndicator.layout.height / 2, layout.width, m_DragIndicator.layout.height);
+            }
+            else
+            {
+                SetDragIndicatorVisible(false);
+
+                m_InsertIndex = -1;
+            }
+
+            return EventPropagation.Stop;
+        }
+
+        int IndexOf(VisualElement element)
+        {
+            var index = 0;
+            foreach (var childElement in Children())
+            {
+                if (childElement == element)
+                    return index;
+                index++;
+            }
+            return -1;
+        }
+
+        struct VisualElementPair
+        {
+            public VisualElement Item1;
+            public VisualElement Item2;
+
+            public VisualElementPair(VisualElement item1, VisualElement item2)
+            {
+                Item1 = item1;
+                Item2 = item2;
+            }
+        }
+
+//        public bool DragPerform(DragPerformEvent evt, IEnumerable<ISelectable> selection, IDropTarget dropTarget)
+        public EventPropagation DragPerform(IMGUIEvent evt, IEnumerable<ISelectable> selection, IDropTarget dropTarget)
+        {
+            if (m_InsertIndex != -1)
+            {
+                List<VisualElementPair> draggedElements = new List<VisualElementPair>();
+
+                foreach (ISelectable selectedElement in selection)
+                {
+                    var draggedElement = selectedElement as VisualElement;
+
+                    if (draggedElement != null && Contains(draggedElement))
+                    {
+                        draggedElements.Add(new VisualElementPair(FindSectionDirectChild(draggedElement), draggedElement));
+                    }
+                }
+
+                if (draggedElements.Count == 0)
+                {
+                    SetDragIndicatorVisible(false);
+
+                    return EventPropagation.Continue;
+                }
+
+                // Sorts the dragged elements from their relative order in their parent
+                draggedElements.Sort((pair1, pair2) => { return IndexOf(pair1.Item1).CompareTo(IndexOf(pair2.Item1)); });
+
+                int insertIndex = m_InsertIndex;
+
+                foreach (var draggedElement in draggedElements)
+                {
+                    VisualElement sectionDirectChild = draggedElement.Item1;
+                    int indexOfDraggedElement = IndexOf(sectionDirectChild);
+
+                    if (!((indexOfDraggedElement == insertIndex) || ((insertIndex - 1) == indexOfDraggedElement)))
+                    {
+                        Blackboard blackboard = GetFirstAncestorOfType<Blackboard>();
+
+                        if (blackboard.moveItemRequested != null)
+                        {
+                            blackboard.moveItemRequested(blackboard, m_InsertIndex, draggedElement.Item2);
+                        }
+                        else
+                        {
+                            if (insertIndex == contentContainer.childCount)
+                            {
+                                sectionDirectChild.BringToFront();
+                            }
+                            else
+                            {
+                                sectionDirectChild.PlaceBehind(this[insertIndex]);
+                            }
+                        }
+                    }
+
+                    if (insertIndex > indexOfDraggedElement) // No need to increment the insert index for the next dragged element if the current dragged element is above the current insert location.
+                        continue;
+                    insertIndex++;
+                }
+            }
+
+            SetDragIndicatorVisible(false);
+
+            return EventPropagation.Stop;
+        }
+
+        EventPropagation IDropTarget.DragExited()
+        {
+            SetDragIndicatorVisible(false);
+            return EventPropagation.Stop;
+        }
+    }
+}

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