added a sizeProvider computedFn for efficiency since size doesn't change as often as position

1 files changed, 7 insertions, 5 deletions

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())