Merge branch 'master' of github-tsch-brown:browngraphicslab/Dash-Web

8 files changed, 97 insertions, 205 deletions

diff --git a/src/client/views/collections/collectionFreeForm/CollectionFreeFormLinksView.tsx b/src/client/views/collections/collectionFreeForm/CollectionFreeFormLinksView.tsx
index cf058090d..647c83d4d 100644
--- a/src/client/views/collections/collectionFreeForm/CollectionFreeFormLinksView.tsx
+++ b/src/client/views/collections/collectionFreeForm/CollectionFreeFormLinksView.tsx
@@ -1,4 +1,4 @@
-import { computed, reaction } from "mobx";
+import { computed, reaction, trace, IReactionDisposer } from "mobx";
 import { observer } from "mobx-react";
 import { Document } from "../../../../fields/Document";
 import { FieldWaiting } from "../../../../fields/Field";
@@ -15,18 +15,15 @@ import React = require("react");
 @observer
 export class CollectionFreeFormLinksView extends React.Component<CollectionViewProps> {
 
-    HackToAvoidReactionFiringUnnecessarily?: Document = undefined;
+    _brushReactionDisposer?: IReactionDisposer;
     componentDidMount() {
-        this.HackToAvoidReactionFiringUnnecessarily = this.props.Document;
-        reaction(() =>
-            DocumentManager.Instance.getAllDocumentViews(this.HackToAvoidReactionFiringUnnecessarily!).
-                map(dv => dv.props.Document.GetNumber(KeyStore.X, 0)),
+        this._brushReactionDisposer = reaction(() => this.props.Document.GetList<Document>(this.props.fieldKey, []).map(doc => doc.GetNumber(KeyStore.X, 0)),
             () => {
-                let views = DocumentManager.Instance.getAllDocumentViews(this.props.Document);
+                let views = this.props.Document.GetList<Document>(this.props.fieldKey, []);
                 for (let i = 0; i < views.length; i++) {
                     for (let j = 0; j < views.length; j++) {
-                        let srcDoc = views[j].props.Document;
-                        let dstDoc = views[i].props.Document;
+                        let srcDoc = views[j];
+                        let dstDoc = views[i];
                         let x1 = srcDoc.GetNumber(KeyStore.X, 0);
                         let x1w = srcDoc.GetNumber(KeyStore.Width, -1);
                         let x2 = dstDoc.GetNumber(KeyStore.X, 0);
@@ -53,7 +50,7 @@ export class CollectionFreeFormLinksView extends React.Component<CollectionViewP
                             linkDoc.SetText(KeyStore.LinkDescription, "Brush between " + srcTarg.Title + " and " + dstTarg.Title);
                             linkDoc.SetData(KeyStore.BrushingDocs, [dstTarg, srcTarg], ListField);
 
-                            brushAction = brushAction = (field: ListField<Document>) => {
+                            brushAction = (field: ListField<Document>) => {
                                 if (findBrush(field) === -1) {
                                     console.log("ADD BRUSH " + srcTarg.Title + " " + dstTarg.Title);
                                     (findBrush(field) === -1) && field.Data.push(linkDoc);
@@ -67,6 +64,11 @@ export class CollectionFreeFormLinksView extends React.Component<CollectionViewP
                 }
             });
     }
+    componentWillUnmount() {
+        if (this._brushReactionDisposer) {
+            this._brushReactionDisposer();
+        }
+    }
     documentAnchors(view: DocumentView) {
         let equalViews = [view];
         let containerDoc = view.props.Document.GetT(KeyStore.AnnotationOn, Document);
diff --git a/src/client/views/collections/collectionFreeForm/CollectionFreeFormRemoteCursors.scss b/src/client/views/collections/collectionFreeForm/CollectionFreeFormRemoteCursors.scss
index c38787802..c5b8fc5e8 100644
--- a/src/client/views/collections/collectionFreeForm/CollectionFreeFormRemoteCursors.scss
+++ b/src/client/views/collections/collectionFreeForm/CollectionFreeFormRemoteCursors.scss
@@ -1,4 +1,4 @@
-@import "global_variables";
+@import "globalCssVariables";
 
 .collectionFreeFormRemoteCursors-cont {
     
diff --git a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.scss b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.scss
index 81f2146e4..26c794e91 100644
--- a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.scss
+++ b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.scss
@@ -1,13 +1,13 @@
-@import "../../global_variables";
+@import "../../globalCssVariables";
 .collectionfreeformview-measure {
-    position: absolute;
+    position: inherit;
     top: 0;
     left: 0;
     width: 100%;
     height: 100%;
   }
 .collectionfreeformview {
-  position: absolute;
+  position: inherit;
   top: 0;
   left: 0;
   width: 100%;
@@ -16,7 +16,7 @@
 }
 .collectionfreeformview-container {
   .collectionfreeformview > .jsx-parser {
-    position: absolute;
+    position: inherit;
     height: 100%;
     width: 100%;
   }
@@ -28,8 +28,10 @@
     // background-size: 30px 30px;
   // }
 
+  border-width: $COLLECTION_BORDER_WIDTH;
   box-shadow: $intermediate-color 0.2vw 0.2vw 0.8vw;
-  border: 0px solid $light-color-secondary;
+  border-color:  $light-color-secondary;
+  border-style: solid; 
   border-radius: $border-radius;
   box-sizing: border-box;
   position: absolute;
@@ -41,7 +43,7 @@
 }
 .collectionfreeformview-overlay {
   .collectionfreeformview > .jsx-parser {
-    position: absolute;
+    position: inherit;
     height: 100%;
   }
   .formattedTextBox-cont {
@@ -49,10 +51,12 @@
   }
  
   opacity: 0.99;
-  border: 0px solid transparent;
+  border-width: 0;
+  border-color: transparent;
+  border-style: solid; 
   border-radius: $border-radius;
   box-sizing: border-box;
-  position:absolute;
+  position: absolute;
   overflow: hidden;
   top: 0;
   left: 0;
diff --git a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
index 01ebbe0e1..e19dc98fa 100644
--- a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
+++ b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
@@ -1,31 +1,30 @@
-import { action, computed, observable, trace, ObservableSet, runInAction } from "mobx";
+import { action, computed, observable, runInAction } from "mobx";
 import { observer } from "mobx-react";
+import Measure from "react-measure";
 import { Document } from "../../../../fields/Document";
 import { FieldWaiting } from "../../../../fields/Field";
 import { KeyStore } from "../../../../fields/KeyStore";
+import { NumberField } from "../../../../fields/NumberField";
 import { TextField } from "../../../../fields/TextField";
+import { emptyFunction, returnFalse } from "../../../../Utils";
+import { DocumentManager } from "../../../util/DocumentManager";
 import { DragManager } from "../../../util/DragManager";
+import { SelectionManager } from "../../../util/SelectionManager";
 import { Transform } from "../../../util/Transform";
 import { undoBatch } from "../../../util/UndoManager";
+import { COLLECTION_BORDER_WIDTH } from "../../../views/globalCssVariables.scss";
 import { InkingCanvas } from "../../InkingCanvas";
+import { Main } from "../../Main";
 import { CollectionFreeFormDocumentView } from "../../nodes/CollectionFreeFormDocumentView";
 import { DocumentContentsView } from "../../nodes/DocumentContentsView";
 import { DocumentViewProps } from "../../nodes/DocumentView";
-import { COLLECTION_BORDER_WIDTH } from "../CollectionBaseView";
 import { CollectionSubView } from "../CollectionSubView";
 import { CollectionFreeFormLinksView } from "./CollectionFreeFormLinksView";
+import { CollectionFreeFormRemoteCursors } from "./CollectionFreeFormRemoteCursors";
 import "./CollectionFreeFormView.scss";
 import { MarqueeView } from "./MarqueeView";
 import React = require("react");
 import v5 = require("uuid/v5");
-import { CollectionFreeFormRemoteCursors } from "./CollectionFreeFormRemoteCursors";
-import { PreviewCursor } from "./PreviewCursor";
-import { DocumentManager } from "../../../util/DocumentManager";
-import { SelectionManager } from "../../../util/SelectionManager";
-import { NumberField } from "../../../../fields/NumberField";
-import { Main } from "../../Main";
-import Measure from "react-measure";
-import { returnFalse, emptyFunction } from "../../../../Utils";
 
 @observer
 export class CollectionFreeFormView extends CollectionSubView {
@@ -297,8 +296,12 @@ export class CollectionFreeFormView extends CollectionSubView {
                 layoutKey={KeyStore.OverlayLayout} isTopMost={this.props.isTopMost} isSelected={returnFalse} select={emptyFunction} />);
     }
 
-    getTransform = (): Transform => this.props.ScreenToLocalTransform().translate(-COLLECTION_BORDER_WIDTH, -COLLECTION_BORDER_WIDTH).translate(-this.centeringShiftX, -this.centeringShiftY).transform(this.getLocalTransform());
-    getContainerTransform = (): Transform => this.props.ScreenToLocalTransform().translate(-COLLECTION_BORDER_WIDTH, -COLLECTION_BORDER_WIDTH);
+    @computed
+    get borderWidth() {
+        return this.isAnnotationOverlay ? 0 : COLLECTION_BORDER_WIDTH;
+    }
+    getTransform = (): Transform => this.props.ScreenToLocalTransform().translate(-this.borderWidth, -this.borderWidth).translate(-this.centeringShiftX, -this.centeringShiftY).transform(this.getLocalTransform());
+    getContainerTransform = (): Transform => this.props.ScreenToLocalTransform().translate(-this.borderWidth, -this.borderWidth);
     getLocalTransform = (): Transform => Transform.Identity().scale(1 / this.scale).translate(this.panX, this.panY);
     noScaling = () => 1;
     childViews = () => this.views;
@@ -307,9 +310,9 @@ export class CollectionFreeFormView extends CollectionSubView {
         const [dx, dy] = [this.centeringShiftX, this.centeringShiftY];
         const panx: number = -this.props.Document.GetNumber(KeyStore.PanX, 0);
         const pany: number = -this.props.Document.GetNumber(KeyStore.PanY, 0);
-        const zoom: number = this.zoomScaling;
-        const blay = this.backgroundView;
-        const olay = this.overlayView;
+        const zoom: number = this.zoomScaling;// needs to be a variable outside of the <Measure> otherwise, reactions won't fire
+        const backgroundView = this.backgroundView; // needs to be a variable outside of the <Measure> otherwise, reactions won't fire
+        const overlayView = this.overlayView;// needs to be a variable outside of the <Measure> otherwise, reactions won't fire
 
         return (
             <Measure onResize={(r: any) => runInAction(() => { this._pwidth = r.entry.width; this._pheight = r.entry.height; })}>
@@ -317,25 +320,21 @@ export class CollectionFreeFormView extends CollectionSubView {
                     <div className={`collectionfreeformview-measure`} ref={measureRef}>
                         <div className={`collectionfreeformview${this.isAnnotationOverlay ? "-overlay" : "-container"}`}
                             onPointerDown={this.onPointerDown} onPointerMove={(e) => super.setCursorPosition(this.getTransform().transformPoint(e.clientX, e.clientY))}
-                            onDrop={this.onDrop.bind(this)} onDragOver={this.onDragOver} onWheel={this.onPointerWheel}
-                            style={{ borderWidth: `${COLLECTION_BORDER_WIDTH}px` }} ref={this.createDropTarget}>
+                            onDrop={this.onDrop.bind(this)} onDragOver={this.onDragOver} onWheel={this.onPointerWheel} ref={this.createDropTarget}>
                             <MarqueeView container={this} activeDocuments={this.getActiveDocuments} selectDocuments={this.selectDocuments}
-                                addDocument={this.addDocument} removeDocument={this.props.removeDocument}
+                                addDocument={this.addDocument} removeDocument={this.props.removeDocument} addLiveTextDocument={this.addLiveTextBox}
                                 getContainerTransform={this.getContainerTransform} getTransform={this.getTransform}>
-                                <PreviewCursor container={this} addLiveTextDocument={this.addLiveTextBox}
-                                    getContainerTransform={this.getContainerTransform} getTransform={this.getTransform} >
-                                    <div className="collectionfreeformview" ref={this._canvasRef}
-                                        style={{ transform: `translate(${dx}px, ${dy}px) scale(${zoom}, ${zoom}) translate(${panx}px, ${pany}px)` }}>
-                                        {blay}
-                                        <CollectionFreeFormLinksView {...this.props}>
-                                            <InkingCanvas getScreenTransform={this.getTransform} Document={this.props.Document} >
-                                                {this.childViews}
-                                            </InkingCanvas>
-                                        </CollectionFreeFormLinksView>
-                                        <CollectionFreeFormRemoteCursors {...this.props} />
-                                    </div>
-                                    {olay}
-                                </PreviewCursor>
+                                <div className="collectionfreeformview" ref={this._canvasRef}
+                                    style={{ transform: `translate(${dx}px, ${dy}px) scale(${zoom}, ${zoom}) translate(${panx}px, ${pany}px)` }}>
+                                    {backgroundView}
+                                    <CollectionFreeFormLinksView {...this.props}>
+                                        <InkingCanvas getScreenTransform={this.getTransform} Document={this.props.Document} >
+                                            {this.childViews}
+                                        </InkingCanvas>
+                                    </CollectionFreeFormLinksView>
+                                    <CollectionFreeFormRemoteCursors {...this.props} />
+                                </div>
+                                {overlayView}
                             </MarqueeView>
                         </div>
                     </div>)}
diff --git a/src/client/views/collections/collectionFreeForm/MarqueeView.scss b/src/client/views/collections/collectionFreeForm/MarqueeView.scss
index 0b406e722..e5ffcec76 100644
--- a/src/client/views/collections/collectionFreeForm/MarqueeView.scss
+++ b/src/client/views/collections/collectionFreeForm/MarqueeView.scss
@@ -1,6 +1,6 @@
 
 .marqueeView {
-    position: absolute;
+    position: inherit;
     top:0;
     left:0;
     width:100%;
diff --git a/src/client/views/collections/collectionFreeForm/MarqueeView.tsx b/src/client/views/collections/collectionFreeForm/MarqueeView.tsx
index 1e6faafb3..ccc2fcf0c 100644
--- a/src/client/views/collections/collectionFreeForm/MarqueeView.tsx
+++ b/src/client/views/collections/collectionFreeForm/MarqueeView.tsx
@@ -1,4 +1,4 @@
-import { action, computed, observable, trace } from "mobx";
+import { action, computed, observable } from "mobx";
 import { observer } from "mobx-react";
 import { Document } from "../../../../fields/Document";
 import { FieldWaiting } from "../../../../fields/Field";
@@ -8,10 +8,12 @@ import { Documents } from "../../../documents/Documents";
 import { SelectionManager } from "../../../util/SelectionManager";
 import { Transform } from "../../../util/Transform";
 import { InkingCanvas } from "../../InkingCanvas";
+import { PreviewCursor } from "../../PreviewCursor";
 import { CollectionFreeFormView } from "./CollectionFreeFormView";
 import "./MarqueeView.scss";
-import { PreviewCursor } from "./PreviewCursor";
 import React = require("react");
+import { undo } from "prosemirror-history";
+import { undoBatch } from "../../../util/UndoManager";
 
 interface MarqueeViewProps {
     getContainerTransform: () => Transform;
@@ -21,6 +23,7 @@ interface MarqueeViewProps {
     activeDocuments: () => Document[];
     selectDocuments: (docs: Document[]) => void;
     removeDocument: (doc: Document) => boolean;
+    addLiveTextDocument: (doc: Document) => void;
 }
 
 @observer
@@ -32,6 +35,7 @@ export class MarqueeView extends React.Component<MarqueeViewProps>
     @observable _downY: number = 0;
     @observable _used: boolean = false;
     @observable _visible: boolean = false;
+    _showOnUp: boolean = false;
     static DRAG_THRESHOLD = 4;
 
     @action
@@ -47,11 +51,31 @@ export class MarqueeView extends React.Component<MarqueeViewProps>
     }
 
     @action
+    onKeyPress = (e: KeyboardEvent) => {
+        // Mixing events between React and Native is finicky.  In FormattedTextBox, we set the
+        // DASHFormattedTextBoxHandled flag when a text box consumes a key press so that we can ignore
+        // the keyPress here.
+        //if not these keys, make a textbox if preview cursor is active!
+        if (!e.ctrlKey && !e.altKey && !e.defaultPrevented && !(e as any).DASHFormattedTextBoxHandled) {
+            //make textbox and add it to this collection
+            let [x, y] = this.props.getTransform().transformPoint(this._downX, this._downY);
+            let newBox = Documents.TextDocument({ width: 200, height: 100, x: x, y: y, title: "typed text" });
+            this.props.addLiveTextDocument(newBox);
+            PreviewCursor.Visible = false;
+            e.stopPropagation();
+        }
+    }
+    hideCursor = () => {
+        document.removeEventListener("keypress", this.onKeyPress, false);
+    }
+    @action
     onPointerDown = (e: React.PointerEvent): void => {
         if (e.buttons === 1 && !e.altKey && !e.metaKey && this.props.container.props.active()) {
             this._downX = this._lastX = e.pageX;
             this._downY = this._lastY = e.pageY;
             this._used = false;
+            this._showOnUp = true;
+            document.removeEventListener("keypress", this.onKeyPress, false);
             document.addEventListener("pointermove", this.onPointerMove, true);
             document.addEventListener("pointerup", this.onPointerUp, true);
             document.addEventListener("keydown", this.marqueeCommand, true);
@@ -63,6 +87,10 @@ export class MarqueeView extends React.Component<MarqueeViewProps>
         this._lastX = e.pageX;
         this._lastY = e.pageY;
         if (!e.cancelBubble) {
+            if (Math.abs(this._downX - e.clientX) > 4 || Math.abs(this._downY - e.clientY) > 4) {
+                this._showOnUp = false;
+                PreviewCursor.Visible = false;
+            }
             if (!this._used && e.buttons === 1 && !e.altKey && !e.metaKey &&
                 (Math.abs(this._lastX - this._downX) > MarqueeView.DRAG_THRESHOLD || Math.abs(this._lastY - this._downY) > MarqueeView.DRAG_THRESHOLD)) {
                 this._visible = true;
@@ -76,11 +104,16 @@ export class MarqueeView extends React.Component<MarqueeViewProps>
     onPointerUp = (e: PointerEvent): void => {
         this.cleanupInteractions(true);
         this._visible = false;
-        let mselect = this.marqueeSelect();
-        if (!e.shiftKey) {
-            SelectionManager.DeselectAll(mselect.length ? undefined : this.props.container.props.Document);
+        if (this._showOnUp) {
+            PreviewCursor.Show(this.hideCursor, this._downX, this._downY);
+            document.addEventListener("keypress", this.onKeyPress, false);
+        } else {
+            let mselect = this.marqueeSelect();
+            if (!e.shiftKey) {
+                SelectionManager.DeselectAll(mselect.length ? undefined : this.props.container.props.Document);
+            }
+            this.props.selectDocuments(mselect.length ? mselect : [this.props.container.props.Document]);
         }
-        this.props.selectDocuments(mselect.length ? mselect : [this.props.container.props.Document]);
     }
 
     intersectRect(r1: { left: number, top: number, width: number, height: number },
@@ -97,6 +130,7 @@ export class MarqueeView extends React.Component<MarqueeViewProps>
         return { left: topLeft[0], top: topLeft[1], width: Math.abs(size[0]), height: Math.abs(size[1]) };
     }
 
+    @undoBatch
     @action
     marqueeCommand = (e: KeyboardEvent) => {
         if (e.key === "Backspace" || e.key === "Delete") {
diff --git a/src/client/views/collections/collectionFreeForm/PreviewCursor.scss b/src/client/views/collections/collectionFreeForm/PreviewCursor.scss
deleted file mode 100644
index 7a67c29bf..000000000
--- a/src/client/views/collections/collectionFreeForm/PreviewCursor.scss
+++ /dev/null
@@ -1,27 +0,0 @@
-
-.previewCursor {
-    color: black;
-    position: absolute;
-    transform-origin: left top;
-    top: 0;
-    left:0;
-    pointer-events: none;
-}
-.previewCursorView {
-    top: 0;
-    left:0;
-    position: absolute;
-    width:100%;
-    height:100%;
-}
-
-//this is an animation for the blinking cursor!
-// @keyframes blink {
-// 	0% {opacity: 0}
-// 	49%{opacity: 0}
-// 	50% {opacity: 1}
-// }
-
-// #previewCursor {
-//      animation: blink 1s infinite;
-// }
\ No newline at end of file
diff --git a/src/client/views/collections/collectionFreeForm/PreviewCursor.tsx b/src/client/views/collections/collectionFreeForm/PreviewCursor.tsx
deleted file mode 100644
index 8eabb020a..000000000
--- a/src/client/views/collections/collectionFreeForm/PreviewCursor.tsx
+++ /dev/null
@@ -1,120 +0,0 @@
-import { action, observable, trace, computed, reaction } from "mobx";
-import { observer } from "mobx-react";
-import { Document } from "../../../../fields/Document";
-import { Documents } from "../../../documents/Documents";
-import { Transform } from "../../../util/Transform";
-import { CollectionFreeFormView } from "./CollectionFreeFormView";
-import "./PreviewCursor.scss";
-import React = require("react");
-import { interfaceDeclaration } from "babel-types";
-
-
-export interface PreviewCursorProps {
-    getTransform: () => Transform;
-    getContainerTransform: () => Transform;
-    container: CollectionFreeFormView;
-    addLiveTextDocument: (doc: Document) => void;
-}
-
-@observer
-export class PreviewCursor extends React.Component<PreviewCursorProps>  {
-    @observable _lastX: number = 0;
-    @observable _lastY: number = 0;
-    @observable public _visible: boolean = false;
-    @observable public DownX: number = 0;
-    @observable public DownY: number = 0;
-    _showOnUp: boolean = false;
-
-    @action
-    cleanupInteractions = () => {
-        document.removeEventListener("pointerup", this.onPointerUp, true);
-        document.removeEventListener("pointermove", this.onPointerMove, true);
-    }
-
-    @action
-    onPointerDown = (e: React.PointerEvent) => {
-        if (e.button === 0 && this.props.container.props.active()) {
-            document.removeEventListener("keypress", this.onKeyPress, false);
-            this._showOnUp = true;
-            this.DownX = e.pageX;
-            this.DownY = e.pageY;
-            document.addEventListener("pointerup", this.onPointerUp, true);
-            document.addEventListener("pointermove", this.onPointerMove, true);
-        }
-    }
-    @action
-    onPointerMove = (e: PointerEvent): void => {
-        if (Math.abs(this.DownX - e.clientX) > 4 || Math.abs(this.DownY - e.clientY) > 4) {
-            this._showOnUp = false;
-            this._visible = false;
-        }
-    }
-
-    @action
-    onPointerUp = (e: PointerEvent): void => {
-        if (this._showOnUp) {
-            document.addEventListener("keypress", this.onKeyPress, false);
-            this._lastX = this.DownX;
-            this._lastY = this.DownY;
-            this._visible = true;
-        }
-        this.cleanupInteractions();
-    }
-
-    @action
-    onKeyPress = (e: KeyboardEvent) => {
-        // Mixing events between React and Native is finicky.  In FormattedTextBox, we set the
-        // DASHFormattedTextBoxHandled flag when a text box consumes a key press so that we can ignore
-        // the keyPress here.
-        //if not these keys, make a textbox if preview cursor is active!
-        if (!e.ctrlKey && !e.altKey && !e.defaultPrevented && !(e as any).DASHFormattedTextBoxHandled) {
-            //make textbox and add it to this collection
-            let [x, y] = this.props.getTransform().transformPoint(this._lastX, this._lastY);
-            let newBox = Documents.TextDocument({ width: 200, height: 100, x: x, y: y, title: "typed text" });
-            this.props.addLiveTextDocument(newBox);
-            document.removeEventListener("keypress", this.onKeyPress, false);
-            this._visible = false;
-            e.stopPropagation();
-        }
-    }
-
-    getPoint = () => this.props.getContainerTransform().transformPoint(this._lastX, this._lastY);
-    getVisible = () => this._visible;
-    setVisible = (v: boolean) => {
-        this._visible = v;
-        document.removeEventListener("keypress", this.onKeyPress, false);
-    }
-    render() {
-        return (
-            <div className="previewCursorView" onPointerDown={this.onPointerDown}>
-                {this.props.children}
-                <PreviewCursorPrompt setVisible={this.setVisible} getPoint={this.getPoint} getVisible={this.getVisible} />
-            </div>
-        );
-    }
-}
-
-export interface PromptProps {
-    getPoint: () => number[];
-    getVisible: () => boolean;
-    setVisible: (v: boolean) => void;
-}
-
-@observer
-export class PreviewCursorPrompt extends React.Component<PromptProps> {
-    private _promptRef = React.createRef<HTMLDivElement>();
-
-    //when focus is lost, this will remove the preview cursor
-    @action onBlur = (): void => this.props.setVisible(false);
-
-    render() {
-        let p = this.props.getPoint();
-        if (this.props.getVisible() && this._promptRef.current) {
-            this._promptRef.current.focus();
-        }
-        return <div className="previewCursor" id="previewCursor" onBlur={this.onBlur} tabIndex={0} ref={this._promptRef}
-            style={{ transform: `translate(${p[0]}px, ${p[1]}px)`, opacity: this.props.getVisible() ? 1 : 0 }}>
-            I
-        </div >;
-    }
-}
\ No newline at end of file