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-rw-r--r--src/components/Dialog/index.tsx215
1 files changed, 152 insertions, 63 deletions
diff --git a/src/components/Dialog/index.tsx b/src/components/Dialog/index.tsx
index 9132e68de..0da2919c5 100644
--- a/src/components/Dialog/index.tsx
+++ b/src/components/Dialog/index.tsx
@@ -1,16 +1,21 @@
 import React, {useImperativeHandle} from 'react'
-import {View, Dimensions} from 'react-native'
+import {View, Dimensions, Keyboard, Pressable} from 'react-native'
 import BottomSheet, {
-  BottomSheetBackdrop,
+  BottomSheetBackdropProps,
   BottomSheetScrollView,
   BottomSheetTextInput,
   BottomSheetView,
+  useBottomSheet,
+  WINDOW_HEIGHT,
 } from '@gorhom/bottom-sheet'
 import {useSafeAreaInsets} from 'react-native-safe-area-context'
+import Animated, {useAnimatedStyle} from 'react-native-reanimated'
 
-import {useTheme, atoms as a} from '#/alf'
+import {useTheme, atoms as a, flatten} from '#/alf'
 import {Portal} from '#/components/Portal'
 import {createInput} from '#/components/forms/TextField'
+import {logger} from '#/logger'
+import {useDialogStateControlContext} from '#/state/dialogs'
 
 import {
   DialogOuterProps,
@@ -18,29 +23,92 @@ import {
   DialogInnerProps,
 } from '#/components/Dialog/types'
 import {Context} from '#/components/Dialog/context'
+import {isNative} from 'platform/detection'
 
 export {useDialogControl, useDialogContext} from '#/components/Dialog/context'
 export * from '#/components/Dialog/types'
 // @ts-ignore
 export const Input = createInput(BottomSheetTextInput)
 
+function Backdrop(props: BottomSheetBackdropProps) {
+  const t = useTheme()
+  const bottomSheet = useBottomSheet()
+
+  const animatedStyle = useAnimatedStyle(() => {
+    const opacity =
+      (Math.abs(WINDOW_HEIGHT - props.animatedPosition.value) - 50) / 1000
+
+    return {
+      opacity: Math.min(Math.max(opacity, 0), 0.55),
+    }
+  })
+
+  const onPress = React.useCallback(() => {
+    bottomSheet.close()
+  }, [bottomSheet])
+
+  return (
+    <Animated.View
+      style={[
+        t.atoms.bg_contrast_300,
+        {
+          top: 0,
+          left: 0,
+          right: 0,
+          bottom: 0,
+          position: 'absolute',
+        },
+        animatedStyle,
+      ]}>
+      <Pressable
+        accessibilityRole="button"
+        accessibilityLabel="Dialog backdrop"
+        accessibilityHint="Press the backdrop to close the dialog"
+        style={{flex: 1}}
+        onPress={onPress}
+      />
+    </Animated.View>
+  )
+}
+
 export function Outer({
   children,
   control,
   onClose,
   nativeOptions,
+  testID,
 }: React.PropsWithChildren<DialogOuterProps>) {
   const t = useTheme()
   const sheet = React.useRef<BottomSheet>(null)
   const sheetOptions = nativeOptions?.sheet || {}
   const hasSnapPoints = !!sheetOptions.snapPoints
   const insets = useSafeAreaInsets()
+  const closeCallback = React.useRef<() => void>()
+  const {setDialogIsOpen} = useDialogStateControlContext()
 
-  const open = React.useCallback<DialogControlProps['open']>((i = 0) => {
-    sheet.current?.snapToIndex(i)
-  }, [])
+  /*
+   * Used to manage open/closed, but index is otherwise handled internally by `BottomSheet`
+   */
+  const [openIndex, setOpenIndex] = React.useState(-1)
 
-  const close = React.useCallback(() => {
+  /*
+   * `openIndex` is the index of the snap point to open the bottom sheet to. If >0, the bottom sheet is open.
+   */
+  const isOpen = openIndex > -1
+
+  const open = React.useCallback<DialogControlProps['open']>(
+    ({index} = {}) => {
+      setDialogIsOpen(control.id, true)
+      // can be set to any index of `snapPoints`, but `0` is the first i.e. "open"
+      setOpenIndex(index || 0)
+    },
+    [setOpenIndex, setDialogIsOpen, control.id],
+  )
+
+  const close = React.useCallback<DialogControlProps['close']>(cb => {
+    if (cb && typeof cb === 'function') {
+      closeCallback.current = cb
+    }
     sheet.current?.close()
   }, [])
 
@@ -53,81 +121,92 @@ export function Outer({
     [open, close],
   )
 
-  const onChange = React.useCallback(
-    (index: number) => {
-      if (index === -1) {
-        onClose?.()
-      }
-    },
-    [onClose],
-  )
+  const onCloseInner = React.useCallback(() => {
+    Keyboard.dismiss()
+    try {
+      closeCallback.current?.()
+    } catch (e: any) {
+      logger.error(`Dialog closeCallback failed`, {
+        message: e.message,
+      })
+    } finally {
+      closeCallback.current = undefined
+    }
+    setDialogIsOpen(control.id, false)
+    onClose?.()
+    setOpenIndex(-1)
+  }, [control.id, onClose, setDialogIsOpen])
 
   const context = React.useMemo(() => ({close}), [close])
 
   return (
-    <Portal>
-      <BottomSheet
-        enableDynamicSizing={!hasSnapPoints}
-        enablePanDownToClose
-        keyboardBehavior="interactive"
-        android_keyboardInputMode="adjustResize"
-        keyboardBlurBehavior="restore"
-        topInset={insets.top}
-        {...sheetOptions}
-        ref={sheet}
-        index={-1}
-        backgroundStyle={{backgroundColor: 'transparent'}}
-        backdropComponent={props => (
-          <BottomSheetBackdrop
-            opacity={0.4}
-            appearsOnIndex={0}
-            disappearsOnIndex={-1}
-            {...props}
-          />
-        )}
-        handleIndicatorStyle={{backgroundColor: t.palette.primary_500}}
-        handleStyle={{display: 'none'}}
-        onChange={onChange}>
-        <Context.Provider value={context}>
-          <View
-            style={[
-              a.absolute,
-              a.inset_0,
-              t.atoms.bg,
-              {
-                borderTopLeftRadius: 40,
-                borderTopRightRadius: 40,
-                height: Dimensions.get('window').height * 2,
-              },
-            ]}
-          />
-          {children}
-        </Context.Provider>
-      </BottomSheet>
-    </Portal>
+    isOpen && (
+      <Portal>
+        <View
+          // iOS
+          accessibilityViewIsModal
+          // Android
+          importantForAccessibility="yes"
+          style={[a.absolute, a.inset_0]}
+          testID={testID}>
+          <BottomSheet
+            enableDynamicSizing={!hasSnapPoints}
+            enablePanDownToClose
+            keyboardBehavior="interactive"
+            android_keyboardInputMode="adjustResize"
+            keyboardBlurBehavior="restore"
+            topInset={insets.top}
+            {...sheetOptions}
+            snapPoints={sheetOptions.snapPoints || ['100%']}
+            ref={sheet}
+            index={openIndex}
+            backgroundStyle={{backgroundColor: 'transparent'}}
+            backdropComponent={Backdrop}
+            handleIndicatorStyle={{backgroundColor: t.palette.primary_500}}
+            handleStyle={{display: 'none'}}
+            onClose={onCloseInner}>
+            <Context.Provider value={context}>
+              <View
+                style={[
+                  a.absolute,
+                  a.inset_0,
+                  t.atoms.bg,
+                  {
+                    borderTopLeftRadius: 40,
+                    borderTopRightRadius: 40,
+                    height: Dimensions.get('window').height * 2,
+                  },
+                ]}
+              />
+              {children}
+            </Context.Provider>
+          </BottomSheet>
+        </View>
+      </Portal>
+    )
   )
 }
 
-// TODO a11y props here, or is that handled by the sheet?
-export function Inner(props: DialogInnerProps) {
+export function Inner({children, style}: DialogInnerProps) {
   const insets = useSafeAreaInsets()
   return (
     <BottomSheetView
       style={[
-        a.p_lg,
+        a.p_xl,
         {
           paddingTop: 40,
           borderTopLeftRadius: 40,
           borderTopRightRadius: 40,
           paddingBottom: insets.bottom + a.pb_5xl.paddingBottom,
         },
+        flatten(style),
       ]}>
-      {props.children}
+      {children}
     </BottomSheetView>
   )
 }
 
-export function ScrollableInner(props: DialogInnerProps) {
+export function ScrollableInner({children, style}: DialogInnerProps) {
   const insets = useSafeAreaInsets()
   return (
     <BottomSheetScrollView
@@ -136,13 +215,16 @@ export function ScrollableInner(props: DialogInnerProps) {
       style={[
         a.flex_1, // main diff is this
         a.p_xl,
+        a.h_full,
         {
           paddingTop: 40,
           borderTopLeftRadius: 40,
           borderTopRightRadius: 40,
         },
-      ]}>
-      {props.children}
+        flatten(style),
+      ]}
+      contentContainerStyle={isNative ? a.pb_4xl : undefined}>
+      {children}
       <View style={{height: insets.bottom + a.pt_5xl.paddingTop}} />
     </BottomSheetScrollView>
   )
@@ -150,8 +232,15 @@ export function ScrollableInner(props: DialogInnerProps) {
 
 export function Handle() {
   const t = useTheme()
+
+  const onTouchStart = React.useCallback(() => {
+    Keyboard.dismiss()
+  }, [])
+
   return (
-    <View style={[a.absolute, a.w_full, a.align_center, a.z_10, {height: 40}]}>
+    <View
+      style={[a.absolute, a.w_full, a.align_center, a.z_10, {height: 40}]}
+      onTouchStart={onTouchStart}>
       <View
         style={[
           a.rounded_sm,