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-rw-r--r--src/view/com/lightbox/ImageViewing/components/ImageDefaultHeader.tsx1
-rw-r--r--src/view/com/lightbox/ImageViewing/components/ImageItem/ImageItem.android.tsx87
-rw-r--r--src/view/com/lightbox/ImageViewing/components/ImageItem/ImageItem.ios.tsx34
3 files changed, 69 insertions, 53 deletions
diff --git a/src/view/com/lightbox/ImageViewing/components/ImageDefaultHeader.tsx b/src/view/com/lightbox/ImageViewing/components/ImageDefaultHeader.tsx
index e7caa58a8..7a37c7e41 100644
--- a/src/view/com/lightbox/ImageViewing/components/ImageDefaultHeader.tsx
+++ b/src/view/com/lightbox/ImageViewing/components/ImageDefaultHeader.tsx
@@ -5,7 +5,6 @@
  * LICENSE file in the root directory of this source tree.
  *
  */
-import React from 'react'
 import {
   SafeAreaView,
   StyleSheet,
diff --git a/src/view/com/lightbox/ImageViewing/components/ImageItem/ImageItem.android.tsx b/src/view/com/lightbox/ImageViewing/components/ImageItem/ImageItem.android.tsx
index 260787d2f..8e046e5ba 100644
--- a/src/view/com/lightbox/ImageViewing/components/ImageItem/ImageItem.android.tsx
+++ b/src/view/com/lightbox/ImageViewing/components/ImageItem/ImageItem.android.tsx
@@ -87,11 +87,11 @@ const ImageItem = ({
   // Note: DO NOT move any logic reading animated values outside this function.
   useAnimatedReaction(
     () => {
-      if (pinchScale.value !== 1) {
+      if (pinchScale.get() !== 1) {
         // We're currently pinching.
         return true
       }
-      const [, , committedScale] = readTransform(committedTransform.value)
+      const [, , committedScale] = readTransform(committedTransform.get())
       if (committedScale !== 1) {
         // We started from a pinched in state.
         return true
@@ -147,10 +147,10 @@ const ImageItem = ({
     .onStart(e => {
       'worklet'
       const screenSize = measureSafeArea()
-      pinchOrigin.value = {
+      pinchOrigin.set({
         x: e.focalX - screenSize.width / 2,
         y: e.focalY - screenSize.height / 2,
-      }
+      })
     })
     .onChange(e => {
       'worklet'
@@ -160,7 +160,7 @@ const ImageItem = ({
       }
       // Don't let the picture zoom in so close that it gets blurry.
       // Also, like in stock Android apps, don't let the user zoom out further than 1:1.
-      const [, , committedScale] = readTransform(committedTransform.value)
+      const [, , committedScale] = readTransform(committedTransform.get())
       const maxCommittedScale = Math.max(
         MIN_SCREEN_ZOOM,
         (imageDimensions.width / screenSize.width) * MAX_ORIGINAL_IMAGE_ZOOM,
@@ -171,20 +171,21 @@ const ImageItem = ({
         Math.max(minPinchScale, e.scale),
         maxPinchScale,
       )
-      pinchScale.value = nextPinchScale
+      pinchScale.set(nextPinchScale)
 
       // Zooming out close to the corner could push us out of bounds, which we don't want on Android.
       // Calculate where we'll end up so we know how much to translate back to stay in bounds.
       const t = createTransform()
-      prependPan(t, panTranslation.value)
-      prependPinch(t, nextPinchScale, pinchOrigin.value, pinchTranslation.value)
-      prependTransform(t, committedTransform.value)
+      prependPan(t, panTranslation.get())
+      prependPinch(t, nextPinchScale, pinchOrigin.get(), pinchTranslation.get())
+      prependTransform(t, committedTransform.get())
       const [dx, dy] = getExtraTranslationToStayInBounds(t, screenSize)
       if (dx !== 0 || dy !== 0) {
-        pinchTranslation.value = {
-          x: pinchTranslation.value.x + dx,
-          y: pinchTranslation.value.y + dy,
-        }
+        const pt = pinchTranslation.get()
+        pinchTranslation.set({
+          x: pt.x + dx,
+          y: pt.y + dy,
+        })
       }
     })
     .onEnd(() => {
@@ -193,18 +194,18 @@ const ImageItem = ({
       let t = createTransform()
       prependPinch(
         t,
-        pinchScale.value,
-        pinchOrigin.value,
-        pinchTranslation.value,
+        pinchScale.get(),
+        pinchOrigin.get(),
+        pinchTranslation.get(),
       )
-      prependTransform(t, committedTransform.value)
+      prependTransform(t, committedTransform.get())
       applyRounding(t)
-      committedTransform.value = t
+      committedTransform.set(t)
 
       // Reset just the pinch.
-      pinchScale.value = 1
-      pinchOrigin.value = {x: 0, y: 0}
-      pinchTranslation.value = {x: 0, y: 0}
+      pinchScale.set(1)
+      pinchOrigin.set({x: 0, y: 0})
+      pinchTranslation.set({x: 0, y: 0})
     })
 
   const pan = Gesture.Pan()
@@ -223,29 +224,29 @@ const ImageItem = ({
       prependPan(t, nextPanTranslation)
       prependPinch(
         t,
-        pinchScale.value,
-        pinchOrigin.value,
-        pinchTranslation.value,
+        pinchScale.get(),
+        pinchOrigin.get(),
+        pinchTranslation.get(),
       )
-      prependTransform(t, committedTransform.value)
+      prependTransform(t, committedTransform.get())
 
       // Prevent panning from going out of bounds.
       const [dx, dy] = getExtraTranslationToStayInBounds(t, screenSize)
       nextPanTranslation.x += dx
       nextPanTranslation.y += dy
-      panTranslation.value = nextPanTranslation
+      panTranslation.set(nextPanTranslation)
     })
     .onEnd(() => {
       'worklet'
       // Commit just the pan.
       let t = createTransform()
-      prependPan(t, panTranslation.value)
-      prependTransform(t, committedTransform.value)
+      prependPan(t, panTranslation.get())
+      prependTransform(t, committedTransform.get())
       applyRounding(t)
-      committedTransform.value = t
+      committedTransform.set(t)
 
       // Reset just the pan.
-      panTranslation.value = {x: 0, y: 0}
+      panTranslation.set({x: 0, y: 0})
     })
 
   const singleTap = Gesture.Tap().onEnd(() => {
@@ -261,11 +262,11 @@ const ImageItem = ({
       if (!imageDimensions || !imageAspect) {
         return
       }
-      const [, , committedScale] = readTransform(committedTransform.value)
+      const [, , committedScale] = readTransform(committedTransform.get())
       if (committedScale !== 1) {
         // Go back to 1:1 using the identity vector.
         let t = createTransform()
-        committedTransform.value = withClampedSpring(t)
+        committedTransform.set(withClampedSpring(t))
         return
       }
 
@@ -299,7 +300,7 @@ const ImageItem = ({
       )
       const finalTransform = createTransform()
       prependPinch(finalTransform, scale, origin, {x: dx, y: dy})
-      committedTransform.value = withClampedSpring(finalTransform)
+      committedTransform.set(withClampedSpring(finalTransform))
     })
 
   const composedGesture = isScrollViewBeingDragged
@@ -313,13 +314,13 @@ const ImageItem = ({
       )
 
   const containerStyle = useAnimatedStyle(() => {
-    const {scaleAndMoveTransform, isHidden} = transforms.value
+    const {scaleAndMoveTransform, isHidden} = transforms.get()
     // Apply the active adjustments on top of the committed transform before the gestures.
     // This is matrix multiplication, so operations are applied in the reverse order.
     let t = createTransform()
-    prependPan(t, panTranslation.value)
-    prependPinch(t, pinchScale.value, pinchOrigin.value, pinchTranslation.value)
-    prependTransform(t, committedTransform.value)
+    prependPan(t, panTranslation.get())
+    prependPinch(t, pinchScale.get(), pinchOrigin.get(), pinchTranslation.get())
+    prependTransform(t, committedTransform.get())
     const [translateX, translateY, scale] = readTransform(t)
     const manipulationTransform = [
       {translateX},
@@ -338,7 +339,7 @@ const ImageItem = ({
   })
 
   const imageCropStyle = useAnimatedStyle(() => {
-    const {cropFrameTransform} = transforms.value
+    const {cropFrameTransform} = transforms.get()
     return {
       flex: 1,
       overflow: 'hidden',
@@ -347,7 +348,7 @@ const ImageItem = ({
   })
 
   const imageStyle = useAnimatedStyle(() => {
-    const {cropContentTransform} = transforms.value
+    const {cropContentTransform} = transforms.get()
     return {
       flex: 1,
       transform: cropContentTransform,
@@ -359,13 +360,13 @@ const ImageItem = ({
   const [hasLoaded, setHasLoaded] = useState(false)
   useAnimatedReaction(
     () => {
-      return transforms.value.isResting && !hasLoaded
+      return transforms.get().isResting && !hasLoaded
     },
     (show, prevShow) => {
-      if (show && !prevShow) {
-        runOnJS(setShowLoader)(false)
-      } else if (!prevShow && show) {
+      if (!prevShow && show) {
         runOnJS(setShowLoader)(true)
+      } else if (prevShow && !show) {
+        runOnJS(setShowLoader)(false)
       }
     },
   )
diff --git a/src/view/com/lightbox/ImageViewing/components/ImageItem/ImageItem.ios.tsx b/src/view/com/lightbox/ImageViewing/components/ImageItem/ImageItem.ios.tsx
index f06a59ed6..c103e131b 100644
--- a/src/view/com/lightbox/ImageViewing/components/ImageItem/ImageItem.ios.tsx
+++ b/src/view/com/lightbox/ImageViewing/components/ImageItem/ImageItem.ios.tsx
@@ -16,9 +16,11 @@ import {
 import Animated, {
   runOnJS,
   SharedValue,
+  useAnimatedProps,
   useAnimatedReaction,
   useAnimatedRef,
   useAnimatedStyle,
+  useSharedValue,
 } from 'react-native-reanimated'
 import {useSafeAreaFrame} from 'react-native-safe-area-context'
 import {Image} from 'expo-image'
@@ -75,6 +77,7 @@ const ImageItem = ({
 }: Props) => {
   const scrollViewRef = useAnimatedRef<Animated.ScrollView>()
   const [scaled, setScaled] = useState(false)
+  const isDragging = useSharedValue(false)
   const screenSizeDelayedForJSThreadOnly = useSafeAreaFrame()
   const maxZoomScale = Math.max(
     MIN_SCREEN_ZOOM,
@@ -86,11 +89,20 @@ const ImageItem = ({
 
   const scrollHandler = useAnimatedScrollHandler({
     onScroll(e) {
+      'worklet'
       const nextIsScaled = e.zoomScale > 1
       if (scaled !== nextIsScaled) {
         runOnJS(handleZoom)(nextIsScaled)
       }
     },
+    onBeginDrag() {
+      'worklet'
+      isDragging.value = true
+    },
+    onEndDrag() {
+      'worklet'
+      isDragging.value = false
+    },
   })
 
   function handleZoom(nextIsScaled: boolean) {
@@ -148,7 +160,7 @@ const ImageItem = ({
   )
 
   const containerStyle = useAnimatedStyle(() => {
-    const {scaleAndMoveTransform, isHidden} = transforms.value
+    const {scaleAndMoveTransform, isHidden} = transforms.get()
     return {
       flex: 1,
       transform: scaleAndMoveTransform,
@@ -158,7 +170,7 @@ const ImageItem = ({
 
   const imageCropStyle = useAnimatedStyle(() => {
     const screenSize = measureSafeArea()
-    const {cropFrameTransform} = transforms.value
+    const {cropFrameTransform} = transforms.get()
     return {
       overflow: 'hidden',
       transform: cropFrameTransform,
@@ -171,7 +183,7 @@ const ImageItem = ({
   })
 
   const imageStyle = useAnimatedStyle(() => {
-    const {cropContentTransform} = transforms.value
+    const {cropContentTransform} = transforms.get()
     return {
       transform: cropContentTransform,
       width: '100%',
@@ -184,13 +196,13 @@ const ImageItem = ({
   const [hasLoaded, setHasLoaded] = useState(false)
   useAnimatedReaction(
     () => {
-      return transforms.value.isResting && !hasLoaded
+      return transforms.get().isResting && !hasLoaded
     },
     (show, prevShow) => {
-      if (show && !prevShow) {
-        runOnJS(setShowLoader)(false)
-      } else if (!prevShow && show) {
+      if (!prevShow && show) {
         runOnJS(setShowLoader)(true)
+      } else if (prevShow && !show) {
+        runOnJS(setShowLoader)(false)
       }
     },
   )
@@ -199,6 +211,11 @@ const ImageItem = ({
   const borderRadius =
     type === 'circle-avi' ? 1e5 : type === 'rect-avi' ? 20 : 0
 
+  const scrollViewProps = useAnimatedProps(() => ({
+    // Don't allow bounce at 1:1 rest so it can be swiped away.
+    bounces: scaled || isDragging.value,
+  }))
+
   return (
     <GestureDetector gesture={composedGesture}>
       <Animated.ScrollView
@@ -210,8 +227,7 @@ const ImageItem = ({
         maximumZoomScale={maxZoomScale}
         onScroll={scrollHandler}
         style={containerStyle}
-        bounces={scaled}
-        bouncesZoom={true}
+        animatedProps={scrollViewProps}
         centerContent>
         {showLoader && (
           <ActivityIndicator size="small" color="#FFF" style={styles.loading} />