1 files changed, 72 insertions, 13 deletions
diff --git a/src/components/Layout.tsx b/src/components/Layout.tsx
index 57e373164..ea11e2217 100644
--- a/src/components/Layout.tsx
+++ b/src/components/Layout.tsx
@@ -1,16 +1,22 @@
-import React from 'react'
+import React, {useContext, useMemo} from 'react'
 import {View, ViewStyle} from 'react-native'
 import {StyleProp} from 'react-native'
 import {useSafeAreaInsets} from 'react-native-safe-area-context'
 
+import {ViewHeader} from '#/view/com/util/ViewHeader'
+import {ScrollView} from '#/view/com/util/Views'
+import {CenteredView} from '#/view/com/util/Views'
 import {atoms as a} from '#/alf'
 
 // Every screen should have a Layout component wrapping it.
 // This component provides a default padding for the top of the screen.
 // This allows certain screens to avoid the top padding if they want to.
-//
-// In a future PR I will add a unified header component to this file and
-// things like a preconfigured scrollview.
+
+const LayoutContext = React.createContext({
+  withinScreen: false,
+  topPaddingDisabled: false,
+  withinScrollView: false,
+})
 
 /**
  * Every screen should have a Layout.Screen component wrapping it.
@@ -18,7 +24,7 @@ import {atoms as a} from '#/alf'
  * and height/minHeight
  */
 let Screen = ({
-  disableTopPadding,
+  disableTopPadding = false,
   style,
   ...props
 }: React.ComponentProps<typeof View> & {
@@ -26,16 +32,69 @@ let Screen = ({
   style?: StyleProp<ViewStyle>
 }): React.ReactNode => {
   const {top} = useSafeAreaInsets()
+  const context = useMemo(
+    () => ({
+      withinScreen: true,
+      topPaddingDisabled: disableTopPadding,
+      withinScrollView: false,
+    }),
+    [disableTopPadding],
+  )
   return (
-    <View
-      style={[
-        {paddingTop: disableTopPadding ? 0 : top},
-        a.util_screen_outer,
-        style,
-      ]}
-      {...props}
-    />
+    <LayoutContext.Provider value={context}>
+      <View
+        style={[
+          {paddingTop: disableTopPadding ? 0 : top},
+          a.util_screen_outer,
+          style,
+        ]}
+        {...props}
+      />
+    </LayoutContext.Provider>
   )
 }
 Screen = React.memo(Screen)
 export {Screen}
+
+let Header = (
+  props: React.ComponentProps<typeof ViewHeader>,
+): React.ReactNode => {
+  const {withinScrollView} = useContext(LayoutContext)
+  if (!withinScrollView) {
+    return (
+      <CenteredView topBorder={false} sideBorders>
+        <ViewHeader showOnDesktop showBorder {...props} />
+      </CenteredView>
+    )
+  } else {
+    return <ViewHeader showOnDesktop showBorder {...props} />
+  }
+}
+Header = React.memo(Header)
+export {Header}
+
+let Content = ({
+  style,
+  contentContainerStyle,
+  ...props
+}: React.ComponentProps<typeof ScrollView> & {
+  style?: StyleProp<ViewStyle>
+  contentContainerStyle?: StyleProp<ViewStyle>
+}): React.ReactNode => {
+  const context = useContext(LayoutContext)
+  const newContext = useMemo(
+    () => ({...context, withinScrollView: true}),
+    [context],
+  )
+  return (
+    <LayoutContext.Provider value={newContext}>
+      <ScrollView
+        style={[a.flex_1, style]}
+        contentContainerStyle={[{paddingBottom: 100}, contentContainerStyle]}
+        {...props}
+      />
+    </LayoutContext.Provider>
+  )
+}
+Content = React.memo(Content)
+export {Content}