Pare back the parallax animation on empty chats

src/CONST.ts

@@ -46,6 +46,8 @@ const CONST = {
         IN: 'in',
         OUT: 'out',
     },
+    // Multiplier for gyroscope animation in order to make it a bit more subtle
+    ANIMATION_GYROSCOPE_VALUE: 0.4,
     ARROW_HIDE_DELAY: 3000,
 
     API_ATTACHMENT_VALIDATIONS: {

src/libs/NumberUtils.ts

@@ -47,18 +47,6 @@ function generateHexadecimalValue(num: number): string {
     return result.join('').toUpperCase();
 }
 
-/**
- * Clamp a number in a range.
- * This is a worklet so it should be used only from UI thread.
-
- * @returns clamped value between min and max
- */
-function clampWorklet(num: number, min: number, max: number): number {
-    'worklet';
-
-    return Math.min(Math.max(num, min), max);
-}
-
 /**
  * Generates a random integer between a and b
  * It's and equivalent of _.random(a, b)
@@ -81,4 +69,4 @@ function parseFloatAnyLocale(value: string): number {
     return parseFloat(value ? value.replace(',', '.') : value);
 }
 
-export {rand64, generateHexadecimalValue, generateRandomInt, clampWorklet, parseFloatAnyLocale};
+export {rand64, generateHexadecimalValue, generateRandomInt, parseFloatAnyLocale};

src/pages/home/report/AnimatedEmptyStateBackground.tsx

@@ -1,9 +1,8 @@
 import React from 'react';
-import Animated, {SensorType, useAnimatedSensor, useAnimatedStyle, useSharedValue, withSpring} from 'react-native-reanimated';
+import Animated, {clamp, SensorType, useAnimatedSensor, useAnimatedStyle, useReducedMotion, useSharedValue, withSpring} from 'react-native-reanimated';
 import useStyleUtils from '@hooks/useStyleUtils';
 import useThemeIllustrations from '@hooks/useThemeIllustrations';
 import useWindowDimensions from '@hooks/useWindowDimensions';
-import * as NumberUtils from '@libs/NumberUtils';
 import variables from '@styles/variables';
 import CONST from '@src/CONST';
 
@@ -22,10 +21,11 @@ function AnimatedEmptyStateBackground() {
     const animatedSensor = useAnimatedSensor(SensorType.GYROSCOPE);
     const xOffset = useSharedValue(0);
     const yOffset = useSharedValue(0);
+    const isReducedMotionEnabled = useReducedMotion();
 
     // Apply data to create style object
     const animatedStyles = useAnimatedStyle(() => {
-        if (!isSmallScreenWidth) {
+        if (!isSmallScreenWidth || isReducedMotionEnabled) {
             return {};
         }
         /*
@@ -34,12 +34,12 @@ function AnimatedEmptyStateBackground() {
          */
         const {x, y} = animatedSensor.sensor.value;
         // The x vs y here seems wrong but is the way to make it feel right to the user
-        xOffset.value = NumberUtils.clampWorklet(xOffset.value + y, -IMAGE_OFFSET_X, IMAGE_OFFSET_X);
-        yOffset.value = NumberUtils.clampWorklet(yOffset.value - x, -IMAGE_OFFSET_Y, IMAGE_OFFSET_Y);
+        xOffset.value = clamp(xOffset.value + y * CONST.ANIMATION_GYROSCOPE_VALUE, -IMAGE_OFFSET_X, IMAGE_OFFSET_X);
+        yOffset.value = clamp(yOffset.value - x * CONST.ANIMATION_GYROSCOPE_VALUE, -IMAGE_OFFSET_Y, IMAGE_OFFSET_Y);
         return {
             transform: [{translateX: withSpring(-IMAGE_OFFSET_X - xOffset.value)}, {translateY: withSpring(yOffset.value)}],
         };
-    }, []);
+    }, [isReducedMotionEnabled]);
 
     return (
         <Animated.Image

src/pages/home/report/ReportActionItem.js

@@ -620,7 +620,7 @@ function ReportActionItem(props) {
         if (ReportUtils.isTaskReport(props.report)) {
             if (ReportUtils.isCanceledTaskReport(props.report, parentReportAction)) {
                 return (
-                    <>
+                    <View style={[StyleUtils.getReportWelcomeContainerStyle(props.isSmallScreenWidth, true)]}>
                         <AnimatedEmptyStateBackground />
                         <View style={[StyleUtils.getReportWelcomeTopMarginStyle(props.isSmallScreenWidth)]}>
                             <ReportActionItemSingle
@@ -632,19 +632,19 @@ function ReportActionItem(props) {
                             </ReportActionItemSingle>
                             <View style={styles.reportHorizontalRule} />
                         </View>
-                    </>
+                    </View>
                 );
             }
             return (
-                <>
+                <View style={[StyleUtils.getReportWelcomeContainerStyle(props.isSmallScreenWidth, true)]}>
                     <AnimatedEmptyStateBackground />
                     <View style={[StyleUtils.getReportWelcomeTopMarginStyle(props.isSmallScreenWidth)]}>
                         <TaskView
                             report={props.report}
                             shouldShowHorizontalRule={!props.shouldHideThreadDividerLine}
                         />
                     </View>
-                </>
+                </View>
             );
         }
         if (ReportUtils.isExpenseReport(props.report) || ReportUtils.isIOUReport(props.report)) {

tests/ui/UnreadIndicatorsTest.js

@@ -43,6 +43,7 @@ jest.mock('react-native/Libraries/LogBox/LogBox', () => ({
 jest.mock('react-native-reanimated', () => ({
     ...jest.requireActual('react-native-reanimated/mock'),
     createAnimatedPropAdapter: jest.fn,
+    useReducedMotion: jest.fn,
 }));
 
 /**