Revert "completely rearchitect toasts"

This reverts commit 2e2fcaeeed.

modules/expo-scroll-forwarder/ios/ExpoScrollForwarderView.swift

@@ -9,7 +9,7 @@ class ExpoScrollForwarderView: ExpoView, UIGestureRecognizerDelegate {
     }
   }
 
-  private var rctScrollView: RCTScrollView?
+  private var scrollView: UIScrollView?
   private var rctRefreshCtrl: RCTRefreshControl?
   private var cancelGestureRecognizers: [UIGestureRecognizer]?
   private var animTimer: Timer?
@@ -68,7 +68,7 @@ class ExpoScrollForwarderView: ExpoView, UIGestureRecognizerDelegate {
   }
 
   @IBAction func callOnPan(_ sender: UIPanGestureRecognizer) {
-    guard let rctsv = self.rctScrollView, let sv = rctsv.scrollView else {
+    guard let sv = self.scrollView else {
       return
     }
 
@@ -113,7 +113,7 @@ class ExpoScrollForwarderView: ExpoView, UIGestureRecognizerDelegate {
   }
 
   func startDecayAnimation(_ translation: CGFloat, _ velocity: CGFloat) {
-    guard let sv = self.rctScrollView?.scrollView else {
+    guard let sv = self.scrollView else {
       return
     }
 
@@ -161,31 +161,48 @@ class ExpoScrollForwarderView: ExpoView, UIGestureRecognizerDelegate {
     return offset
   }
   
-  func tryFindScrollView() {
+  private func findScrollView(in view: UIView, foundCount: Int) -> UIScrollView? {
-    guard let scrollViewTag = scrollViewTag else {
+    var foundCount = foundCount
-      return
+    if let sv = view as? UIScrollView { return sv }
+    for child in view.subviews {
+      if let found = findScrollView(in: child, foundCount: foundCount) {
+        if foundCount == 1 {
+          print("found sv: \(found)")
+//          return found
+        } else {
+          print("found sv: \(found)")
+          foundCount += 1
+        }
+      }
+    }
+    return nil
   }
 
+  func tryFindScrollView() {
     // Before we switch to a different scrollview, we always want to remove the cancel gesture recognizer.
     // Otherwise we might end up with duplicates when we switch back to that scrollview.
     self.removeCancelGestureRecognizers()
     
-    self.rctScrollView = self.appContext?
+    guard let sv = self.findScrollView(in: self.superview!.superview!.superview!, foundCount: 0) else {
-      .findView(withTag: scrollViewTag, ofType: RCTScrollView.self)
+      print("⚠️ ExpoScrollForwarder: couldn’t find UIScrollView under tag \(tag)")
-    self.rctRefreshCtrl = self.rctScrollView?.scrollView.refreshControl as? RCTRefreshControl
+      return
+    }
+
+    self.scrollView = sv
+    self.rctRefreshCtrl = sv.refreshControl as? RCTRefreshControl
 
     self.addCancelGestureRecognizers()
   }
 
   func addCancelGestureRecognizers() {
     self.cancelGestureRecognizers?.forEach { r in
-      self.rctScrollView?.scrollView?.addGestureRecognizer(r)
+      self.scrollView?.addGestureRecognizer(r)
     }
   }
 
   func removeCancelGestureRecognizers() {
     self.cancelGestureRecognizers?.forEach { r in
-      self.rctScrollView?.scrollView?.removeGestureRecognizer(r)
+      self.scrollView?.removeGestureRecognizer(r)
     }
   }
 
@@ -202,7 +219,7 @@ class ExpoScrollForwarderView: ExpoView, UIGestureRecognizerDelegate {
   }
 
   func scrollToOffset(_ offset: Int, animated: Bool = true) {
-    self.rctScrollView?.scroll(toOffset: CGPoint(x: 0, y: offset), animated: animated)
+    self.scrollView?.scrollRectToVisible(CGRect(x: 0, y: offset, width: 0, height:  0), animated: animated)
   }
 
   func stopTimer() {

src/App.native.tsx

@@ -60,7 +60,6 @@ import {Provider as HiddenRepliesProvider} from '#/state/threadgate-hidden-repli
 import {Provider as TrendingConfigProvider} from '#/state/trending-config'
 import {TestCtrls} from '#/view/com/testing/TestCtrls'
 import {Provider as VideoVolumeProvider} from '#/view/com/util/post-embeds/VideoVolumeContext'
-import {ToastContainer} from '#/view/com/util/Toast'
 import * as Toast from '#/view/com/util/Toast'
 import {Shell} from '#/view/shell'
 import {ThemeProvider as Alf} from '#/alf'
@@ -157,7 +156,6 @@ function InnerApp() {
                                                     <TestCtrls />
                                                     <Shell />
                                                     <NuxDialogs />
-                                                    <ToastContainer />
                                                   </IntentDialogProvider>
                                                 </GestureHandlerRootView>
                                               </TrendingConfigProvider>

src/App.web.tsx

@@ -51,7 +51,7 @@ import {Provider as TrendingConfigProvider} from '#/state/trending-config'
 import {Provider as ActiveVideoProvider} from '#/view/com/util/post-embeds/ActiveVideoWebContext'
 import {Provider as VideoVolumeProvider} from '#/view/com/util/post-embeds/VideoVolumeContext'
 import * as Toast from '#/view/com/util/Toast'
-import {ToastContainer} from '#/view/com/util/Toast'
+import {ToastContainer} from '#/view/com/util/Toast.web'
 import {Shell} from '#/view/shell/index'
 import {ThemeProvider as Alf} from '#/alf'
 import {useColorModeTheme} from '#/alf/util/useColorModeTheme'

src/view/com/util/Toast.tsx

@@ -1,7 +1,13 @@
 import {useEffect, useMemo, useRef, useState} from 'react'
 import {AccessibilityInfo, View} from 'react-native'
-import {Gesture, GestureDetector} from 'react-native-gesture-handler'
+import {
+  Gesture,
+  GestureDetector,
+  GestureHandlerRootView,
+} from 'react-native-gesture-handler'
 import Animated, {
+  FadeInUp,
+  FadeOutUp,
   runOnJS,
   useAnimatedReaction,
   useAnimatedStyle,
@@ -9,13 +15,12 @@ import Animated, {
   withDecay,
   withSpring,
 } from 'react-native-reanimated'
+import RootSiblings from 'react-native-root-siblings'
 import {useSafeAreaInsets} from 'react-native-safe-area-context'
 import {
   FontAwesomeIcon,
   type Props as FontAwesomeProps,
 } from '@fortawesome/react-native-fontawesome'
-import EventEmitter from 'eventemitter3'
-import {nanoid} from 'nanoid/non-secure'
 
 import {useNonReactiveCallback} from '#/lib/hooks/useNonReactiveCallback'
 import {atoms as a, useTheme} from '#/alf'
@@ -23,37 +28,6 @@ import {Text} from '#/components/Typography'
 
 const TIMEOUT = 2e3
 
-type ToastProps = {
-  message: string
-  icon: FontAwesomeProps['icon']
-}
-
-const SHOW_TOAST = 'show-toast'
-
-const ToastEventEmitter = new EventEmitter<typeof SHOW_TOAST>()
-
-export function ToastContainer() {
-  const [toasts, setToasts] = useState<(ToastProps & {key: string})[]>([])
-
-  useEffect(() => {
-    const listener = ({message, icon}: ToastProps) => {
-      setToasts(prev => [...prev, {message, icon, key: nanoid()}])
-    }
-    ToastEventEmitter.on(SHOW_TOAST, listener)
-    return () => {
-      ToastEventEmitter.off(SHOW_TOAST, listener)
-    }
-  }, [])
-
-  return toasts.map(toast => (
-    <Toast
-      {...toast}
-      key={toast.key}
-      destroy={() => setToasts(prev => prev.filter(t => t !== toast))}
-    />
-  ))
-}
-
 export function show(
   message: string,
   icon: FontAwesomeProps['icon'] = 'check',
@@ -62,7 +36,9 @@ export function show(
     return
   }
   AccessibilityInfo.announceForAccessibility(message)
-  ToastEventEmitter.emit(SHOW_TOAST, {message, icon})
+  const item = new RootSiblings(
+    <Toast message={message} icon={icon} destroy={() => item.destroy()} />,
+  )
 }
 
 function Toast({
@@ -77,23 +53,19 @@ function Toast({
   const t = useTheme()
   const {top} = useSafeAreaInsets()
   const isPanning = useSharedValue(false)
-  const animationTranslateY = useSharedValue(-200)
   const dismissSwipeTranslateY = useSharedValue(0)
   const [cardHeight, setCardHeight] = useState(0)
 
+  // for the exit animation to work on iOS the animated component
+  // must not be the root component
+  // so we need to wrap it in a view and unmount the toast ahead of time
+  const [alive, setAlive] = useState(true)
+
   const hideAndDestroyImmediately = () => {
-    'worklet'
+    setAlive(false)
-    animationTranslateY.set(
+    setTimeout(() => {
-      withSpring(
+      destroy()
-        -200,
+    }, 1e3)
-        {
-          damping: 100,
-          stiffness: 800,
-          restDisplacementThreshold: 0.01,
-        },
-        () => runOnJS(destroy)(),
-      ),
-    )
   }
 
   const destroyTimeoutRef = useRef<ReturnType<typeof setTimeout>>()
@@ -106,15 +78,8 @@ function Toast({
   })
 
   useEffect(() => {
-    animationTranslateY.set(
-      withSpring(0, {
-        damping: 100,
-        stiffness: 800,
-        restDisplacementThreshold: 0.01,
-      }),
-    )
     hideAndDestroyAfterTimeout()
-  }, [hideAndDestroyAfterTimeout, animationTranslateY])
+  }, [hideAndDestroyAfterTimeout])
 
   const panGesture = useMemo(() => {
     return Gesture.Pan()
@@ -123,15 +88,18 @@ function Toast({
       .maxPointers(1)
       .onStart(() => {
         'worklet'
+        if (!alive) return
         isPanning.set(true)
         runOnJS(pauseDestroy)()
       })
       .onUpdate(e => {
         'worklet'
+        if (!alive) return
         dismissSwipeTranslateY.value = e.translationY
       })
       .onEnd(e => {
         'worklet'
+        if (!alive) return
         runOnJS(hideAndDestroyAfterTimeout)()
         isPanning.set(false)
         if (e.velocityY < -100) {
@@ -147,15 +115,15 @@ function Toast({
           })
         } else {
           dismissSwipeTranslateY.value = withSpring(0, {
-            damping: 75,
+            stiffness: 500,
-            stiffness: 1000,
+            damping: 50,
-            restDisplacementThreshold: 0.01,
           })
         }
       })
   }, [
     dismissSwipeTranslateY,
     isPanning,
+    alive,
     hideAndDestroyAfterTimeout,
     pauseDestroy,
   ])
@@ -175,7 +143,7 @@ function Toast({
   )
 
   const animatedStyle = useAnimatedStyle(() => {
-    const translation = dismissSwipeTranslateY.get() + animationTranslateY.get()
+    const translation = dismissSwipeTranslateY.get()
     return {
       transform: [
         {
@@ -186,6 +154,14 @@ function Toast({
   })
 
   return (
+    <GestureHandlerRootView
+      style={[a.absolute, {top: topOffset, left: 16, right: 16}]}
+      pointerEvents="box-none">
+      {alive && (
+        <Animated.View
+          entering={FadeInUp}
+          exiting={FadeOutUp}
+          style={[a.flex_1]}>
           <Animated.View
             onLayout={evt => setCardHeight(evt.nativeEvent.layout.height)}
             accessibilityRole="alert"
@@ -194,8 +170,6 @@ function Toast({
             accessibilityHint=""
             onAccessibilityEscape={hideAndDestroyImmediately}
             style={[
-        a.absolute,
-        {top: topOffset, left: 16, right: 16},
               a.flex_1,
               t.name === 'dark' ? t.atoms.bg_contrast_25 : t.atoms.bg,
               a.shadow_lg,
@@ -215,7 +189,9 @@ function Toast({
                     a.justify_center,
                     {
                       backgroundColor:
-                  t.name === 'dark' ? t.palette.black : t.palette.primary_50,
+                        t.name === 'dark'
+                          ? t.palette.black
+                          : t.palette.primary_50,
                     },
                   ]}>
                   <FontAwesomeIcon
@@ -232,5 +208,8 @@ function Toast({
               </View>
             </GestureDetector>
           </Animated.View>
+        </Animated.View>
+      )}
+    </GestureHandlerRootView>
   )
 }

src/view/com/util/Toast.web.tsx

@@ -9,6 +9,7 @@ import {
   type FontAwesomeIconStyle,
   type Props as FontAwesomeProps,
 } from '@fortawesome/react-native-fontawesome'
+import type React from 'react';
 
 const DURATION = 3500
 
@@ -25,7 +26,8 @@ let toastTimeout: NodeJS.Timeout | undefined
 
 // components
 // =
-export function ToastContainer() {
+type ToastContainerProps = {}
+export const ToastContainer: React.FC<ToastContainerProps> = ({}) => {
   const [activeToast, setActiveToast] = useState<ActiveToast | undefined>()
   useEffect(() => {
     globalSetActiveToast = (t: ActiveToast | undefined) => {