feat(ui): misc canvas perf improvements

- disable listening when not needed
- use useMemo for gridlines

invokeai/frontend/web/src/features/canvas/components/IAICanvas.tsx

@@ -210,7 +210,7 @@ const IAICanvas = () => {
           onWheel={handleWheel}
           draggable={(tool === 'move' || isStaging) && !isModifyingBoundingBox}
         >
-          <Layer id="grid" visible={shouldShowGrid}>
+          <Layer id="grid" visible={shouldShowGrid} listening={false}>
             <IAICanvasGrid />
           </Layer>
 
@@ -230,17 +230,21 @@ const IAICanvas = () => {
             <IAICanvasMaskLines visible={true} listening={false} />
             <IAICanvasMaskCompositer listening={false} />
           </Layer>
-          <Layer>
+          <Layer listening={false}>
             <IAICanvasBoundingBoxOverlay />
           </Layer>
-          <Layer id="preview" imageSmoothingEnabled={shouldAntialias}>
+          <Layer
+            id="preview"
+            listening={false}
+            imageSmoothingEnabled={shouldAntialias}
+          >
             {!isStaging && (
               <IAICanvasToolPreview
                 visible={tool !== 'move'}
                 listening={false}
               />
             )}
-            <IAICanvasStagingArea visible={isStaging} />
+            <IAICanvasStagingArea listening={false} visible={isStaging} />
             {shouldShowIntermediates && <IAICanvasIntermediateImage />}
             <IAICanvasBoundingBox
               visible={shouldShowBoundingBox && !isStaging}

invokeai/frontend/web/src/features/canvas/components/IAICanvasBoundingBoxOverlay.tsx

@@ -34,7 +34,7 @@ const IAICanvasBoundingBoxOverlay = () => {
   } = useAppSelector(selector);
 
   return (
-    <Group>
+    <Group listening={false}>
       <Rect
         offsetX={stageCoordinates.x / stageScale}
         offsetY={stageCoordinates.y / stageScale}

invokeai/frontend/web/src/features/canvas/components/IAICanvasGrid.tsx

@@ -4,8 +4,7 @@ import { createMemoizedSelector } from 'app/store/createMemoizedSelector';
 import { stateSelector } from 'app/store/store';
 import { useAppSelector } from 'app/store/storeHooks';
 import { range } from 'lodash-es';
-import type { ReactNode } from 'react';
-import { memo, useCallback, useLayoutEffect, useState } from 'react';
+import { memo, useCallback, useMemo } from 'react';
 import { Group, Line as KonvaLine } from 'react-konva';
 
 const selector = createMemoizedSelector([stateSelector], ({ canvas }) => {
@@ -16,7 +15,6 @@ const selector = createMemoizedSelector([stateSelector], ({ canvas }) => {
 const IAICanvasGrid = () => {
   const { stageScale, stageCoordinates, stageDimensions } =
     useAppSelector(selector);
-  const [gridLines, setGridLines] = useState<ReactNode[]>([]);
   const [gridLineColor] = useToken('colors', ['base.800']);
 
   const unscale = useCallback(
@@ -26,7 +24,7 @@ const IAICanvasGrid = () => {
     [stageScale]
   );
 
-  useLayoutEffect(() => {
+  const gridLines = useMemo(() => {
     const { width, height } = stageDimensions;
     const { x, y } = stageCoordinates;
 
@@ -77,6 +75,7 @@ const IAICanvasGrid = () => {
         points={[0, 0, 0, ySize]}
         stroke={gridLineColor}
         strokeWidth={1}
+        listening={false}
       />
     ));
     const yLines = range(0, ySteps).map((i) => (
@@ -87,13 +86,14 @@ const IAICanvasGrid = () => {
         points={[0, 0, xSize, 0]}
         stroke={gridLineColor}
         strokeWidth={1}
+        listening={false}
       />
     ));
 
-    setGridLines(xLines.concat(yLines));
-  }, [stageScale, stageCoordinates, stageDimensions, unscale, gridLineColor]);
+    return xLines.concat(yLines);
+  }, [stageCoordinates, stageDimensions, unscale, gridLineColor]);
 
-  return <Group>{gridLines}</Group>;
+  return <Group listening={false}>{gridLines}</Group>;
 };
 
 export default memo(IAICanvasGrid);

invokeai/frontend/web/src/features/canvas/components/IAICanvasImageErrorFallback.tsx

@@ -13,13 +13,14 @@ const IAICanvasImageErrorFallback = ({
   const [rectFill, textFill] = useToken('colors', ['base.500', 'base.900']);
   const { t } = useTranslation();
   return (
-    <Group>
+    <Group listening={false}>
       <Rect
         x={canvasImage.x}
         y={canvasImage.y}
         width={canvasImage.width}
         height={canvasImage.height}
         fill={rectFill}
+        listening={false}
       />
       <Text
         x={canvasImage.x}
@@ -33,6 +34,7 @@ const IAICanvasImageErrorFallback = ({
         fontStyle="600"
         text={t('common.imageFailedToLoad')}
         fill={textFill}
+        listening={false}
       />
     </Group>
   );

invokeai/frontend/web/src/features/canvas/components/IAICanvasMaskLines.tsx

@@ -9,7 +9,7 @@ import { Group, Line } from 'react-konva';
 export const canvasLinesSelector = createMemoizedSelector(
   [stateSelector],
   ({ canvas }) => {
-    return { objects: canvas.layerState.objects };
+    return canvas.layerState.objects.filter(isCanvasMaskLine);
   }
 );
 
@@ -22,11 +22,11 @@ type InpaintingCanvasLinesProps = GroupConfig;
  */
 const IAICanvasLines = (props: InpaintingCanvasLinesProps) => {
   const { ...rest } = props;
-  const { objects } = useAppSelector(canvasLinesSelector);
+  const lines = useAppSelector(canvasLinesSelector);
 
   return (
     <Group listening={false} {...rest}>
-      {objects.filter(isCanvasMaskLine).map((line, i) => (
+      {lines.map((line, i) => (
         <Line
           key={i}
           points={line.points}

invokeai/frontend/web/src/features/canvas/components/IAICanvasObjectRenderer.tsx

@@ -59,6 +59,7 @@ const IAICanvasObjectRenderer = () => {
                 clipY={obj.clip.y}
                 clipWidth={obj.clip.width}
                 clipHeight={obj.clip.height}
+                listening={false}
               >
                 {line}
               </Group>
@@ -75,6 +76,7 @@ const IAICanvasObjectRenderer = () => {
               width={obj.width}
               height={obj.height}
               fill={rgbaColorToString(obj.color)}
+              listening={false}
             />
           );
         } else if (isCanvasEraseRect(obj)) {
@@ -87,6 +89,7 @@ const IAICanvasObjectRenderer = () => {
               height={obj.height}
               fill="rgb(255, 255, 255)"
               globalCompositeOperation="destination-out"
+              listening={false}
             />
           );
         }

invokeai/frontend/web/src/features/canvas/components/IAICanvasStagingArea.tsx

@@ -56,7 +56,7 @@ const IAICanvasStagingArea = (props: Props) => {
         <IAICanvasImage canvasImage={currentStagingAreaImage} />
       )}
       {shouldShowStagingOutline && (
-        <Group>
+        <Group listening={false}>
           <Rect
             x={x}
             y={y}
@@ -65,6 +65,7 @@ const IAICanvasStagingArea = (props: Props) => {
             strokeWidth={1}
             stroke="white"
             strokeScaleEnabled={false}
+            listening={false}
           />
           <Rect
             x={x}
@@ -75,6 +76,7 @@ const IAICanvasStagingArea = (props: Props) => {
             strokeWidth={1}
             stroke="black"
             strokeScaleEnabled={false}
+            listening={false}
           />
         </Group>
       )}