merged with master

1 files changed, 226 insertions, 211 deletions

diff --git a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
index 4562fd8a7..2fa59d589 100644
--- a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
+++ b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
@@ -1,58 +1,63 @@
-import { action, computed, observable, trace, ObservableSet, runInAction } from "mobx";
+import { action, computed } from "mobx";
 import { observer } from "mobx-react";
 import { Document } from "../../../../fields/Document";
-import { FieldWaiting } from "../../../../fields/Field";
 import { KeyStore } from "../../../../fields/KeyStore";
-import { TextField } from "../../../../fields/TextField";
+import { emptyFunction, returnFalse, returnOne } 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 { 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 { BooleanField } from "../../../../fields/BooleanField";
 
 @observer
 export class CollectionFreeFormView extends CollectionSubView {
-    public _canvasRef = React.createRef<HTMLDivElement>();
+    public static RIGHT_BTN_DRAG = false;
     private _selectOnLoaded: string = ""; // id of document that should be selected once it's loaded (used for click-to-type)
+    private _lastX: number = 0;
+    private _lastY: number = 0;
+    private get _pwidth() { return this.props.PanelWidth(); }
+    private get _pheight() { return this.props.PanelHeight(); }
 
-    public addLiveTextBox = (newBox: Document) => {
-        // mark this collection so that when the text box is created we can send it the SelectOnLoad prop to focus itself and receive text input
-        this._selectOnLoaded = newBox.Id;
+    @computed get nativeWidth() { return this.props.Document.GetNumber(KeyStore.NativeWidth, 0); }
+    @computed get nativeHeight() { return this.props.Document.GetNumber(KeyStore.NativeHeight, 0); }
+    private get borderWidth() { return this.isAnnotationOverlay ? 0 : COLLECTION_BORDER_WIDTH; }
+    private get isAnnotationOverlay() { return this.props.fieldKey && this.props.fieldKey.Id === KeyStore.Annotations.Id; } // bcz: ? Why do we need to compare Id's?
+    private panX = () => this.props.Document.GetNumber(KeyStore.PanX, 0);
+    private panY = () => this.props.Document.GetNumber(KeyStore.PanY, 0);
+    private zoomScaling = () => this.props.Document.GetNumber(KeyStore.Scale, 1);
+    private centeringShiftX = () => !this.nativeWidth ? this._pwidth / 2 : 0;  // shift so pan position is at center of window for non-overlay collections
+    private centeringShiftY = () => !this.nativeHeight ? this._pheight / 2 : 0;// shift so pan position is at center of window for non-overlay collections
+    private getTransform = (): Transform => this.props.ScreenToLocalTransform().translate(-this.borderWidth, -this.borderWidth).translate(-this.centeringShiftX(), -this.centeringShiftY()).transform(this.getLocalTransform());
+    private getContainerTransform = (): Transform => this.props.ScreenToLocalTransform().translate(-this.borderWidth, -this.borderWidth);
+    private getLocalTransform = (): Transform => Transform.Identity().scale(1 / this.zoomScaling()).translate(this.panX(), this.panY());
+    private addLiveTextBox = (newBox: Document) => {
+        this._selectOnLoaded = newBox.Id;// track the new text box so we can give it a prop that tells it to focus itself when it's displayed
         this.addDocument(newBox, false);
     }
-
-    public addDocument = (newBox: Document, allowDuplicates: boolean) => {
-        let added = this.props.addDocument(newBox, false);
+    @action
+    private addDocument = (newBox: Document, allowDuplicates: boolean) => {
+        this.props.addDocument(newBox, false);
         this.bringToFront(newBox);
-        return added;
+        return true;
     }
-
-    public selectDocuments = (docs: Document[]) => {
+    private selectDocuments = (docs: Document[]) => {
         SelectionManager.DeselectAll;
-        docs.map(doc => {
-            const dv = DocumentManager.Instance.getDocumentView(doc);
-            if (dv) {
-                SelectionManager.SelectDoc(dv, true);
-            }
-        });
+        docs.map(doc => DocumentManager.Instance.getDocumentView(doc)).filter(dv => dv).map(dv =>
+            SelectionManager.SelectDoc(dv!, true));
     }
-
     public getActiveDocuments = () => {
         var curPage = this.props.Document.GetNumber(KeyStore.CurPage, -1);
         return this.props.Document.GetList(this.props.fieldKey, [] as Document[]).reduce((active, doc) => {
@@ -64,61 +69,38 @@ export class CollectionFreeFormView extends CollectionSubView {
         }, [] as Document[]);
     }
 
-    @observable public DownX: number = 0;
-    @observable public DownY: number = 0;
-    @observable private _lastX: number = 0;
-    @observable private _lastY: number = 0;
-    @observable private _pwidth: number = 0;
-    @observable private _pheight: number = 0;
-
-    @computed get panX(): number { return this.props.Document.GetNumber(KeyStore.PanX, 0); }
-    @computed get panY(): number { return this.props.Document.GetNumber(KeyStore.PanY, 0); }
-    @computed get scale(): number { return this.props.Document.GetNumber(KeyStore.Scale, 1); }
-    @computed get isAnnotationOverlay() { return this.props.fieldKey && this.props.fieldKey.Id === KeyStore.Annotations.Id; } // bcz: ? Why do we need to compare Id's?
-    @computed get nativeWidth() { return this.props.Document.GetNumber(KeyStore.NativeWidth, 0); }
-    @computed get nativeHeight() { return this.props.Document.GetNumber(KeyStore.NativeHeight, 0); }
-    @computed get zoomScaling() { return this.props.Document.GetNumber(KeyStore.Scale, 1); }
-    @computed get centeringShiftX() { return !this.props.Document.GetNumber(KeyStore.NativeWidth, 0) ? this._pwidth / 2 : 0; }  // shift so pan position is at center of window for non-overlay collections
-    @computed get centeringShiftY() { return !this.props.Document.GetNumber(KeyStore.NativeHeight, 0) ? this._pheight / 2 : 0; }// shift so pan position is at center of window for non-overlay collections
-
     @undoBatch
     @action
     drop = (e: Event, de: DragManager.DropEvent) => {
-        if (super.drop(e, de)) {
-            if (de.data instanceof DragManager.DocumentDragData) {
-                let droppedDocs = de.data.droppedDocuments;
-                let xoff = de.data.xOffset as number || 0;
-                let yoff = de.data.yOffset as number || 0;
-                if (droppedDocs.length) {
-                    let screenX = de.x - xoff;
-                    let screenY = de.y - yoff;
-                    const [x, y] = this.getTransform().transformPoint(screenX, screenY);
-                    let dragDoc = droppedDocs[0];
-                    let dragX = dragDoc.GetNumber(KeyStore.X, 0);
-                    let dragY = dragDoc.GetNumber(KeyStore.Y, 0);
-                    droppedDocs.map(async d => {
-                        let docX = d.GetNumber(KeyStore.X, 0);
-                        let docY = d.GetNumber(KeyStore.Y, 0);
-                        d.SetNumber(KeyStore.X, x + (docX - dragX));
-                        d.SetNumber(KeyStore.Y, y + (docY - dragY));
-                        let docW = await d.GetTAsync(KeyStore.Width, NumberField);
-                        let docH = await d.GetTAsync(KeyStore.Height, NumberField);
-                        if (!docW) {
-                            d.SetNumber(KeyStore.Width, 300);
-                        }
-                        if (!docH) {
-                            d.SetNumber(KeyStore.Height, 300);
-                        }
-                        this.bringToFront(d);
-                    });
-                }
+        if (super.drop(e, de) && de.data instanceof DragManager.DocumentDragData) {
+            if (de.data.droppedDocuments.length) {
+                let dragDoc = de.data.droppedDocuments[0];
+                let zoom = dragDoc.GetNumber(KeyStore.ZoomBasis, 1);
+                let [xp, yp] = this.getTransform().transformPoint(de.x, de.y);
+                let x = xp - de.data.xOffset / zoom;
+                let y = yp - de.data.yOffset / zoom;
+                let dropX = de.data.droppedDocuments[0].GetNumber(KeyStore.X, 0);
+                let dropY = de.data.droppedDocuments[0].GetNumber(KeyStore.Y, 0);
+                de.data.droppedDocuments.map(d => {
+                    d.SetNumber(KeyStore.X, x + (d.GetNumber(KeyStore.X, 0) - dropX));
+                    d.SetNumber(KeyStore.Y, y + (d.GetNumber(KeyStore.Y, 0) - dropY));
+                    if (!d.GetNumber(KeyStore.Width, 0)) {
+                        d.SetNumber(KeyStore.Width, 300);
+                    }
+                    if (!d.GetNumber(KeyStore.Height, 0)) {
+                        let nw = d.GetNumber(KeyStore.NativeWidth, 0);
+                        let nh = d.GetNumber(KeyStore.NativeHeight, 0);
+                        d.SetNumber(KeyStore.Height, nw && nh ? nh / nw * d.Width() : 300);
+                    }
+                    this.bringToFront(d);
+                });
+                SelectionManager.ReselectAll();
             }
             return true;
         }
         return false;
     }
 
-
     @action
     cleanupInteractions = () => {
         document.removeEventListener("pointermove", this.onPointerMove);
@@ -127,83 +109,106 @@ export class CollectionFreeFormView extends CollectionSubView {
 
     @action
     onPointerDown = (e: React.PointerEvent): void => {
-        if (((e.button === 2 && (!this.isAnnotationOverlay || this.zoomScaling !== 1)) || e.button === 0) && this.props.active()) {
-            document.removeEventListener("pointermove", this.onPointerMove);
+        let childSelected = this.props.Document.GetList(this.props.fieldKey, [] as Document[]).filter(doc => doc).reduce((childSelected, doc) => {
+            var dv = DocumentManager.Instance.getDocumentView(doc);
+            return childSelected || (dv && SelectionManager.IsSelected(dv) ? true : false);
+        }, false);
+        if ((CollectionFreeFormView.RIGHT_BTN_DRAG &&
+            (((e.button === 2 && (!this.isAnnotationOverlay || this.zoomScaling() !== 1)) ||
+                (e.button === 0 && e.altKey)) && (childSelected || this.props.active()))) ||
+            (!CollectionFreeFormView.RIGHT_BTN_DRAG &&
+                ((e.button === 0 && !e.altKey && (!this.isAnnotationOverlay || this.zoomScaling() !== 1)) && (childSelected || this.props.active())))) {
+            this.cleanupInteractions();
             document.addEventListener("pointermove", this.onPointerMove);
-            document.removeEventListener("pointerup", this.onPointerUp);
             document.addEventListener("pointerup", this.onPointerUp);
-            this._lastX = this.DownX = e.pageX;
-            this._lastY = this.DownY = e.pageY;
-            if (this.props.isSelected()) {
-                e.stopPropagation();
-            }
+            this._lastX = e.pageX;
+            this._lastY = e.pageY;
         }
     }
 
-    @action
     onPointerUp = (e: PointerEvent): void => {
-        e.stopPropagation();
-
         this.cleanupInteractions();
     }
 
     @action
     onPointerMove = (e: PointerEvent): void => {
-        if (!e.cancelBubble && this.props.active()) {
-            if ((!this.isAnnotationOverlay || this.zoomScaling !== 1) && !e.shiftKey) {
-                let x = this.props.Document.GetNumber(KeyStore.PanX, 0);
-                let y = this.props.Document.GetNumber(KeyStore.PanY, 0);
-                let [dx, dy] = this.getTransform().transformDirection(e.clientX - this._lastX, e.clientY - this._lastY);
-                this.SetPan(x - dx, y - dy);
-                this._lastX = e.pageX;
-                this._lastY = e.pageY;
-                e.stopPropagation();
-                e.preventDefault();
+        if (!e.cancelBubble) {
+            let x = this.props.Document.GetNumber(KeyStore.PanX, 0);
+            let y = this.props.Document.GetNumber(KeyStore.PanY, 0);
+            let docs = this.props.Document.GetList(this.props.fieldKey, [] as Document[]);
+            let [dx, dy] = this.getTransform().transformDirection(e.clientX - this._lastX, e.clientY - this._lastY);
+            if (!this.isAnnotationOverlay) {
+                let minx = docs.length ? docs[0].GetNumber(KeyStore.X, 0) : 0;
+                let maxx = docs.length ? docs[0].Width() + minx : minx;
+                let miny = docs.length ? docs[0].GetNumber(KeyStore.Y, 0) : 0;
+                let maxy = docs.length ? docs[0].Height() + miny : miny;
+                let ranges = docs.filter(doc => doc).reduce((range, doc) => {
+                    let x = doc.GetNumber(KeyStore.X, 0);
+                    let xe = x + doc.GetNumber(KeyStore.Width, 0);
+                    let y = doc.GetNumber(KeyStore.Y, 0);
+                    let ye = y + doc.GetNumber(KeyStore.Height, 0);
+                    return [[range[0][0] > x ? x : range[0][0], range[0][1] < xe ? xe : range[0][1]],
+                    [range[1][0] > y ? y : range[1][0], range[1][1] < ye ? ye : range[1][1]]];
+                }, [[minx, maxx], [miny, maxy]]);
+                let panelwidth = this._pwidth / this.zoomScaling() / 2;
+                let panelheight = this._pheight / this.zoomScaling() / 2;
+                if (x - dx < ranges[0][0] - panelwidth) x = ranges[0][1] + panelwidth + dx;
+                if (x - dx > ranges[0][1] + panelwidth) x = ranges[0][0] - panelwidth + dx;
+                if (y - dy < ranges[1][0] - panelheight) y = ranges[1][1] + panelheight + dy;
+                if (y - dy > ranges[1][1] + panelheight) y = ranges[1][0] - panelheight + dy;
             }
+            this.setPan(x - dx, y - dy);
+            this._lastX = e.pageX;
+            this._lastY = e.pageY;
+            e.stopPropagation(); // doesn't actually stop propagation since all our listeners are listening to events on 'document'  however it does mark the event as cancelBubble=true which we test for in the move event handlers
+            e.preventDefault();
         }
     }
 
     @action
     onPointerWheel = (e: React.WheelEvent): void => {
-        this.props.select(false);
+        // if (!this.props.active()) {
+        //     return;
+        // }
+        let childSelected = this.props.Document.GetList(this.props.fieldKey, [] as Document[]).filter(doc => doc).reduce((childSelected, doc) => {
+            var dv = DocumentManager.Instance.getDocumentView(doc);
+            return childSelected || (dv && SelectionManager.IsSelected(dv) ? true : false);
+        }, false);
+        if (!this.props.isSelected() && !childSelected && !this.props.isTopMost) {
+            return;
+        }
         e.stopPropagation();
-        let coefficient = 1000;
+        const coefficient = 1000;
 
         if (e.ctrlKey) {
-            var nativeWidth = this.props.Document.GetNumber(KeyStore.NativeWidth, 0);
-            var nativeHeight = this.props.Document.GetNumber(KeyStore.NativeHeight, 0);
-            const coefficient = 1000;
             let deltaScale = (1 - (e.deltaY / coefficient));
-            this.props.Document.SetNumber(KeyStore.NativeWidth, nativeWidth * deltaScale);
-            this.props.Document.SetNumber(KeyStore.NativeHeight, nativeHeight * deltaScale);
+            this.props.Document.SetNumber(KeyStore.NativeWidth, this.nativeWidth * deltaScale);
+            this.props.Document.SetNumber(KeyStore.NativeHeight, this.nativeHeight * deltaScale);
             e.stopPropagation();
             e.preventDefault();
         } else {
             // if (modes[e.deltaMode] === 'pixels') coefficient = 50;
             // else if (modes[e.deltaMode] === 'lines') coefficient = 1000; // This should correspond to line-height??
-            let transform = this.getTransform();
-
             let deltaScale = (1 - (e.deltaY / coefficient));
-            if (deltaScale * this.zoomScaling < 1 && this.isAnnotationOverlay) {
-                deltaScale = 1 / this.zoomScaling;
+            if (deltaScale * this.zoomScaling() < 1 && this.isAnnotationOverlay) {
+                deltaScale = 1 / this.zoomScaling();
             }
-            let [x, y] = transform.transformPoint(e.clientX, e.clientY);
-
-            let localTransform = this.getLocalTransform();
-            localTransform = localTransform.inverse().scaleAbout(deltaScale, x, y);
-            // console.log(localTransform)
+            if (deltaScale < 0) deltaScale = -deltaScale;
+            let [x, y] = this.getTransform().transformPoint(e.clientX, e.clientY);
+            let localTransform = this.getLocalTransform().inverse().scaleAbout(deltaScale, x, y);
 
-            this.props.Document.SetNumber(KeyStore.Scale, localTransform.Scale);
-            this.SetPan(-localTransform.TranslateX / localTransform.Scale, -localTransform.TranslateY / localTransform.Scale);
+            let safeScale = Math.abs(localTransform.Scale);
+            this.props.Document.SetNumber(KeyStore.Scale, Math.abs(safeScale));
+            this.setPan(-localTransform.TranslateX / safeScale, -localTransform.TranslateY / safeScale);
+            e.stopPropagation();
         }
     }
 
     @action
-    private SetPan(panX: number, panY: number) {
-        Main.Instance.SetTextDoc(undefined, undefined);
-        var x1 = this.getLocalTransform().inverse().Scale;
-        const newPanX = Math.min((1 - 1 / x1) * this.nativeWidth, Math.max(0, panX));
-        const newPanY = Math.min((1 - 1 / x1) * this.nativeHeight, Math.max(0, panY));
+    setPan(panX: number, panY: number) {
+        var scale = this.getLocalTransform().inverse().Scale;
+        const newPanX = Math.min((1 - 1 / scale) * this.nativeWidth, Math.max(0, panX));
+        const newPanY = Math.min((1 - 1 / scale) * this.nativeHeight, Math.max(0, panY));
         this.props.Document.SetNumber(KeyStore.PanX, this.isAnnotationOverlay ? newPanX : panX);
         this.props.Document.SetNumber(KeyStore.PanY, this.isAnnotationOverlay ? newPanY : panY);
 
@@ -220,51 +225,31 @@ export class CollectionFreeFormView extends CollectionSubView {
 
     @action
     bringToFront(doc: Document) {
-        const { fieldKey: fieldKey, Document: Document } = this.props;
-
-        const value: Document[] = Document.GetList<Document>(fieldKey, []).slice();
-        value.sort((doc1, doc2) => {
-            if (doc1 === doc) {
-                return 1;
-            }
-            if (doc2 === doc) {
-                return -1;
-            }
+        let docs = this.props.Document.GetList(this.props.fieldKey, [] as Document[]).slice();
+        docs.sort((doc1, doc2) => {
+            if (doc1 === doc) return 1;
+            if (doc2 === doc) return -1;
             return doc1.GetNumber(KeyStore.ZIndex, 0) - doc2.GetNumber(KeyStore.ZIndex, 0);
-        }).map((doc, index) => {
-            doc.SetNumber(KeyStore.ZIndex, index + 1);
-        });
-    }
-
-    @computed get backgroundLayout(): string | undefined {
-        let field = this.props.Document.GetT(KeyStore.BackgroundLayout, TextField);
-        if (field && field !== FieldWaiting) {
-            return field.Data;
-        }
-    }
-    @computed get overlayLayout(): string | undefined {
-        let field = this.props.Document.GetT(KeyStore.OverlayLayout, TextField);
-        if (field && field !== FieldWaiting) {
-            return field.Data;
-        }
+        }).map((doc, index) => doc.SetNumber(KeyStore.ZIndex, index + 1));
+        doc.SetNumber(KeyStore.ZIndex, docs.length + 1);
     }
 
     focusDocument = (doc: Document) => {
+        SelectionManager.DeselectAll();
         this.props.Document.SetText(KeyStore.PanTransformType, "Ease");
-        let x = doc.GetNumber(KeyStore.X, 0) + doc.GetNumber(KeyStore.Width, 0) / 2;
-        let y = doc.GetNumber(KeyStore.Y, 0) + doc.GetNumber(KeyStore.Height, 0) / 2;
-        this.SetPan(x, y);
+        this.setPan(
+            doc.GetNumber(KeyStore.X, 0) + doc.Width() / 2,
+            doc.GetNumber(KeyStore.Y, 0) + doc.Height() / 2);
         this.props.focus(this.props.Document);
-        //     if(this.props.Document.GetText(KeyStore.PanTransformType, "") === "Ease") {
-        //         setTimeout(function(){
-        //              this.props.Document.SetText(KeyStore.PanTransformType, "None");
-        //         }.bind(this),5000);  // wait 5 seconds, then reset to false
-        //    }
+        if (this.props.Document.GetText(KeyStore.PanTransformType, "") === "Ease") {
+            setTimeout(() => this.props.Document.SetText(KeyStore.PanTransformType, "None"), 5000);  // wait 5 seconds, then reset to false
+        }
     }
 
     getDocumentViewProps(document: Document): DocumentViewProps {
         return {
             Document: document,
+            toggleMinimized: emptyFunction,
             addDocument: this.props.addDocument,
             removeDocument: this.props.removeDocument,
             moveDocument: this.props.moveDocument,
@@ -273,86 +258,116 @@ export class CollectionFreeFormView extends CollectionSubView {
             selectOnLoad: document.Id === this._selectOnLoaded,
             PanelWidth: document.Width,
             PanelHeight: document.Height,
-            ContentScaling: this.noScaling,
-            ContainingCollectionView: undefined,
+            ContentScaling: returnOne,
+            ContainingCollectionView: this.props.CollectionView,
             focus: this.focusDocument,
             parentActive: this.props.active,
-            onActiveChanged: this.props.active,
+            whenActiveChanged: this.props.active,
         };
     }
 
     @computed
     get views() {
         var curPage = this.props.Document.GetNumber(KeyStore.CurPage, -1);
-        return this.props.Document.GetList(this.props.fieldKey, [] as Document[]).filter(doc => doc).reduce((prev, doc) => {
+        let docviews = this.props.Document.GetList(this.props.fieldKey, [] as Document[]).filter(doc => doc).reduce((prev, doc) => {
             var page = doc.GetNumber(KeyStore.Page, -1);
             if (page === curPage || page === -1) {
-                prev.push(<CollectionFreeFormDocumentView key={doc.Id} {...this.getDocumentViewProps(doc)} />);
+                let minim = doc.GetT(KeyStore.IsMinimized, BooleanField);
+                if (minim === undefined || (minim && !minim.Data))
+                    prev.push(<CollectionFreeFormDocumentView key={doc.Id} {...this.getDocumentViewProps(doc)} />);
             }
             return prev;
         }, [] as JSX.Element[]);
-    }
 
-    @computed
-    get backgroundView() {
-        return !this.backgroundLayout ? (null) :
-            (<DocumentContentsView {...this.getDocumentViewProps(this.props.Document)}
-                layoutKey={KeyStore.BackgroundLayout} isTopMost={this.props.isTopMost} isSelected={() => false} select={() => { }} />);
+        setTimeout(() => this._selectOnLoaded = "", 600);// bcz: surely there must be a better way ....
+
+        return docviews;
     }
-    @computed
-    get overlayView() {
-        return !this.overlayLayout ? (null) :
-            (<DocumentContentsView {...this.getDocumentViewProps(this.props.Document)}
-                layoutKey={KeyStore.OverlayLayout} isTopMost={this.props.isTopMost} isSelected={() => false} select={() => { }} />);
+
+    @action
+    onCursorMove = (e: React.PointerEvent) => {
+        super.setCursorPosition(this.getTransform().transformPoint(e.clientX, e.clientY));
     }
 
-    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);
-    getLocalTransform = (): Transform => Transform.Identity().scale(1 / this.scale).translate(this.panX, this.panY);
-    noScaling = () => 1;
-    childViews = () => this.views;
+    private childViews = () => [...this.views, <CollectionFreeFormBackgroundView key="backgroundView" {...this.props} {...this.getDocumentViewProps(this.props.Document)} />];
+    render() {
+        const containerName = `collectionfreeformview${this.isAnnotationOverlay ? "-overlay" : "-container"}`;
+        const easing = () => this.props.Document.GetText(KeyStore.PanTransformType, "") === "Ease";
+        return (
+            <div className={containerName} ref={this.createDropTarget} onWheel={this.onPointerWheel}
+                style={{ borderRadius: "inherit" }}
+                onPointerDown={this.onPointerDown} onPointerMove={this.onCursorMove} onDrop={this.onDrop.bind(this)} onDragOver={this.onDragOver} >
+                {/* <svg viewBox="0 0 180 18" style={{ top: "50%", opacity: 0.05, position: "absolute" }}>
+                    <text y="15" >
+                        {this.props.Document.Title}
+                    </text>
+                </svg> */}
+                <MarqueeView container={this} activeDocuments={this.getActiveDocuments} selectDocuments={this.selectDocuments} isSelected={this.props.isSelected}
+                    addDocument={this.addDocument} removeDocument={this.props.removeDocument} addLiveTextDocument={this.addLiveTextBox}
+                    getContainerTransform={this.getContainerTransform} getTransform={this.getTransform}>
+                    <CollectionFreeFormViewPannableContents centeringShiftX={this.centeringShiftX} centeringShiftY={this.centeringShiftY}
+                        easing={easing} zoomScaling={this.zoomScaling} panX={this.panX} panY={this.panY}>
+
+                        <CollectionFreeFormLinksView {...this.props} key="freeformLinks">
+                            <InkingCanvas getScreenTransform={this.getTransform} Document={this.props.Document} >
+                                {this.childViews}
+                            </InkingCanvas>
+                        </CollectionFreeFormLinksView>
+                        <CollectionFreeFormRemoteCursors {...this.props} key="remoteCursors" />]
+                    </CollectionFreeFormViewPannableContents>
+                    <CollectionFreeFormOverlayView {...this.getDocumentViewProps(this.props.Document)} {...this.props} />
+                </MarqueeView>
+            </div>
+        );
+    }
+}
 
+@observer
+class CollectionFreeFormOverlayView extends React.Component<DocumentViewProps> {
+    @computed get overlayView() {
+        let overlayLayout = this.props.Document.GetText(KeyStore.OverlayLayout, "");
+        return !overlayLayout ? (null) :
+            (<DocumentContentsView {...this.props} layoutKey={KeyStore.OverlayLayout}
+                isTopMost={this.props.isTopMost} isSelected={returnFalse} select={emptyFunction} />);
+    }
     render() {
-        let [dx, dy] = [this.centeringShiftX, this.centeringShiftY];
+        return this.overlayView;
+    }
+}
 
-        const panx: number = -this.props.Document.GetNumber(KeyStore.PanX, 0);
-        const pany: number = -this.props.Document.GetNumber(KeyStore.PanY, 0);
+@observer
+class CollectionFreeFormBackgroundView extends React.Component<DocumentViewProps & { isSelected: () => boolean }> {
+    @computed get backgroundView() {
+        let backgroundLayout = this.props.Document.GetText(KeyStore.BackgroundLayout, "");
+        return !backgroundLayout ? (null) :
+            (<DocumentContentsView {...this.props} layoutKey={KeyStore.BackgroundLayout}
+                isTopMost={this.props.isTopMost} isSelected={this.props.isSelected} select={emptyFunction} />);
+    }
+    render() {
+        return this.backgroundView;
+    }
+}
 
-        if (this.props.Document.GetText(KeyStore.PanTransformType, "") === "Ease") {
-            var freeformclass = "collectionfreeformview-ease";
-        } else {
-            var freeformclass = "collectionfreeformview-none";
-        }
+interface CollectionFreeFormViewPannableContentsProps {
+    centeringShiftX: () => number;
+    centeringShiftY: () => number;
+    panX: () => number;
+    panY: () => number;
+    zoomScaling: () => number;
+    easing: () => boolean;
+}
 
-        return (
-            <Measure onResize={(r: any) => runInAction(() => { this._pwidth = r.entry.width; this._pheight = r.entry.height })}>
-                {({ measureRef }) => (
-                    <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}>
-                            <MarqueeView container={this} activeDocuments={this.getActiveDocuments} selectDocuments={this.selectDocuments}
-                                addDocument={this.addDocument} removeDocument={this.props.removeDocument}
-                                getContainerTransform={this.getContainerTransform} getTransform={this.getTransform}>
-                                <PreviewCursor container={this} addLiveTextDocument={this.addLiveTextBox}
-                                    getContainerTransform={this.getContainerTransform} getTransform={this.getTransform} >
-                                    <div className={freeformclass} ref={this._canvasRef}
-                                        style={{ transform: `translate(${dx}px, ${dy}px) scale(${this.zoomScaling}, ${this.zoomScaling}) translate(${panx}px, ${pany}px)` }}>
-                                        {this.backgroundView}
-                                        <CollectionFreeFormLinksView {...this.props}>
-                                            <InkingCanvas getScreenTransform={this.getTransform} Document={this.props.Document} >
-                                                {this.childViews}
-                                            </InkingCanvas>
-                                        </CollectionFreeFormLinksView>
-                                        <CollectionFreeFormRemoteCursors {...this.props} />
-                                    </div>
-                                    {this.overlayView}
-                                </PreviewCursor>
-                            </MarqueeView>
-                        </div>
-                    </div>)}
-            </Measure>
-        );
+@observer
+class CollectionFreeFormViewPannableContents extends React.Component<CollectionFreeFormViewPannableContentsProps>{
+    render() {
+        let freeformclass = "collectionfreeformview" + (this.props.easing() ? "-ease" : "-none");
+        const cenx = this.props.centeringShiftX();
+        const ceny = this.props.centeringShiftY();
+        const panx = -this.props.panX();
+        const pany = -this.props.panY();
+        const zoom = this.props.zoomScaling();// needs to be a variable outside of the <Measure> otherwise, reactions won't fire
+        return <div className={freeformclass} style={{ borderRadius: "inherit", transform: `translate(${cenx}px, ${ceny}px) scale(${zoom}, ${zoom}) translate(${panx}px, ${pany}px)` }}>
+            {this.props.children}
+        </div>;
     }
 }
\ No newline at end of file