From e66812a1e19023d777d90ee382cb3849c5f63fc0 Mon Sep 17 00:00:00 2001
From: Bob Zeleznik <zzzman@gmail.com>
Date: Sat, 25 Apr 2020 20:59:28 -0400
Subject: added a sizeProvider computedFn for efficiency since size doesn't
 change as often as position

---
 .../collectionFreeForm/CollectionFreeFormView.tsx          | 14 +++++++++++---
 src/client/views/nodes/CollectionFreeFormDocumentView.tsx  | 12 +++++++-----
 src/new_fields/util.ts                                     |  2 +-
 3 files changed, 19 insertions(+), 9 deletions(-)

(limited to 'src')

diff --git a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
index a13c81a15..6a6879fd4 100644
--- a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
+++ b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
@@ -86,6 +86,7 @@ export class CollectionFreeFormView extends CollectionSubView<PanZoomDocument, P
     private _hitCluster = false;
     private _layoutComputeReaction: IReactionDisposer | undefined;
     private _layoutPoolData = new ObservableMap<string, PoolData>();
+    private _layoutSizeData = new ObservableMap<string, { width?: number, height?: number }>();
     private _cachedPool: Map<string, PoolData> = new Map();
     @observable private _pullCoords: number[] = [0, 0];
     @observable private _pullDirection: string = "";
@@ -903,13 +904,13 @@ export class CollectionFreeFormView extends CollectionSubView<PanZoomDocument, P
     getCalculatedPositions(params: { pair: { layout: Doc, data?: Doc }, index: number, collection: Doc, docs: Doc[], state: any }): PoolData {
         const result = this.Document.arrangeScript?.script.run(params, console.log);
         if (result?.success) {
-            return { x: 0, y: 0, transition: "transform 1s", ...result, pair: params.pair };
+            return { x: 0, y: 0, transition: "transform 1s", ...result, pair: params.pair, replica: "" };
         }
         const layoutDoc = Doc.Layout(params.pair.layout);
         const { x, y, z, color, zIndex } = params.pair.layout;
         return {
             x: NumCast(x), y: NumCast(y), z: Cast(z, "number"), color: StrCast(color), zIndex: Cast(zIndex, "number"),
-            width: Cast(layoutDoc._width, "number"), height: Cast(layoutDoc._height, "number"), pair: params.pair
+            width: Cast(layoutDoc._width, "number"), height: Cast(layoutDoc._height, "number"), pair: params.pair, replica: ""
         };
     }
 
@@ -950,6 +951,9 @@ export class CollectionFreeFormView extends CollectionSubView<PanZoomDocument, P
     childDataProvider = computedFn(function childDataProvider(this: any, doc: Doc, replica: string) {
         return this._layoutPoolData.get(doc[Id] + (replica || ""));
     }.bind(this));
+    childSizeProvider = computedFn(function childSizeProvider(this: any, doc: Doc, replica: string) {
+        return this._layoutSizeData.get(doc[Id] + (replica || ""));
+    }.bind(this));
 
     doEngineLayout(poolData: Map<string, PoolData>,
         engine: (
@@ -997,9 +1001,12 @@ export class CollectionFreeFormView extends CollectionSubView<PanZoomDocument, P
             Array.from(newPool.entries()).map(entry => {
                 const lastPos = this._cachedPool.get(entry[0]); // last computed pos
                 const newPos = entry[1];
-                if (!lastPos || newPos.x !== lastPos.x || newPos.y !== lastPos.y || newPos.z !== lastPos.z || newPos.zIndex !== lastPos.zIndex || newPos.width !== lastPos.width || newPos.height !== lastPos.height) {
+                if (!lastPos || newPos.x !== lastPos.x || newPos.y !== lastPos.y || newPos.z !== lastPos.z || newPos.zIndex !== lastPos.zIndex) {
                     this._layoutPoolData.set(entry[0], newPos);
                 }
+                if (!lastPos || newPos.height !== lastPos.height) {
+                    this._layoutSizeData.set(entry[0], { width: newPos.width, height: newPos.height });
+                }
             }));
         this._cachedPool.clear();
         Array.from(newPool.entries()).forEach(k => this._cachedPool.set(k[0], k[1]));
@@ -1012,6 +1019,7 @@ export class CollectionFreeFormView extends CollectionSubView<PanZoomDocument, P
                     {...this.getChildDocumentViewProps(entry[1].pair.layout, entry[1].pair.data)}
                     replica={entry[1].replica}
                     dataProvider={this.childDataProvider}
+                    sizeProvider={this.childSizeProvider}
                     LayoutDoc={this.childLayoutDocFunc}
                     pointerEvents={
                         this.backgroundActive ?
diff --git a/src/client/views/nodes/CollectionFreeFormDocumentView.tsx b/src/client/views/nodes/CollectionFreeFormDocumentView.tsx
index 7ef8e43f7..1c7d116c5 100644
--- a/src/client/views/nodes/CollectionFreeFormDocumentView.tsx
+++ b/src/client/views/nodes/CollectionFreeFormDocumentView.tsx
@@ -12,7 +12,8 @@ import { TraceMobx } from "../../../new_fields/util";
 import { ContentFittingDocumentView } from "./ContentFittingDocumentView";
 
 export interface CollectionFreeFormDocumentViewProps extends DocumentViewProps {
-    dataProvider?: (doc: Doc, replica: string) => { x: number, y: number, zIndex?: number, highlight?: boolean, width: number, height: number, z: number, transition?: string, replica: string } | undefined;
+    dataProvider?: (doc: Doc, replica: string) => { x: number, y: number, zIndex?: number, highlight?: boolean, z: number, transition?: string } | undefined;
+    sizeProvider?: (doc: Doc, replica: string) => { width: number, height: number } | undefined;
     x?: number;
     y?: number;
     z?: number;
@@ -41,13 +42,14 @@ export class CollectionFreeFormDocumentView extends DocComponent<CollectionFreeF
     get Y() { return this.renderScriptDim ? this.renderScriptDim.y : this.props.y !== undefined ? this.props.y : this.dataProvider ? this.dataProvider.y : (this.Document.y || 0); }
     get ZInd() { return this.dataProvider ? this.dataProvider.zIndex : (this.Document.zIndex || 0); }
     get Highlight() { return this.dataProvider?.highlight; }
-    get width() { return this.renderScriptDim ? this.renderScriptDim.width : this.props.width !== undefined ? this.props.width : this.props.dataProvider && this.dataProvider ? this.dataProvider.width : this.layoutDoc[WidthSym](); }
+    get width() { return this.renderScriptDim ? this.renderScriptDim.width : this.props.width !== undefined ? this.props.width : this.props.sizeProvider && this.sizeProvider ? this.sizeProvider.width : this.layoutDoc[WidthSym](); }
     get height() {
-        const hgt = this.renderScriptDim ? this.renderScriptDim.height : this.props.height !== undefined ? this.props.height : this.props.dataProvider && this.dataProvider ? this.dataProvider.height : this.layoutDoc[HeightSym]();
+        const hgt = this.renderScriptDim ? this.renderScriptDim.height : this.props.height !== undefined ? this.props.height : this.props.sizeProvider && this.sizeProvider ? this.sizeProvider.height : this.layoutDoc[HeightSym]();
         return (hgt === undefined && this.nativeWidth && this.nativeHeight) ? this.width * this.nativeHeight / this.nativeWidth : hgt;
     }
     @computed get freezeDimensions() { return this.props.FreezeDimensions; }
     @computed get dataProvider() { return this.props.dataProvider?.(this.props.Document, this.props.replica); }
+    @computed get sizeProvider() { return this.props.sizeProvider?.(this.props.Document, this.props.replica); }
     @computed get nativeWidth() { return NumCast(this.layoutDoc._nativeWidth, this.props.NativeWidth() || (this.freezeDimensions ? this.layoutDoc[WidthSym]() : 0)); }
     @computed get nativeHeight() { return NumCast(this.layoutDoc._nativeHeight, this.props.NativeHeight() || (this.freezeDimensions ? this.layoutDoc[HeightSym]() : 0)); }
 
@@ -71,8 +73,8 @@ export class CollectionFreeFormDocumentView extends DocComponent<CollectionFreeF
     }
 
     contentScaling = () => this.nativeWidth > 0 && !this.props.fitToBox && !this.freezeDimensions ? this.width / this.nativeWidth : 1;
-    panelWidth = () => (this.dataProvider?.width || this.props.PanelWidth?.());
-    panelHeight = () => (this.dataProvider?.height || this.props.PanelHeight?.());
+    panelWidth = () => (this.sizeProvider?.width || this.props.PanelWidth?.());
+    panelHeight = () => (this.sizeProvider?.height || this.props.PanelHeight?.());
     getTransform = (): Transform => this.props.ScreenToLocalTransform()
         .translate(-this.X, -this.Y)
         .scale(1 / this.contentScaling())
diff --git a/src/new_fields/util.ts b/src/new_fields/util.ts
index 480a55da0..8c719ccd8 100644
--- a/src/new_fields/util.ts
+++ b/src/new_fields/util.ts
@@ -12,7 +12,7 @@ function _readOnlySetter(): never {
     throw new Error("Documents can't be modified in read-only mode");
 }
 
-const tracing = true;
+const tracing = false;
 export function TraceMobx() {
     tracing && trace();
 }
-- 
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