[Layout] Base (#6907)

* Add common gutter styles as hook

* Add computed scrollbar gutter CSS vars

* Add new layout components

* Replace layout components in settings screens

* Remove old back button

* Invert web border logic for easier migration

* Clean up Slot API

* Port over FF handling of scrollbar offset

* Trade boilerplate for ease of use

* Limit to one line

* Allow two lines, fix wrapping

* Fix alignment

* sticky headers

* set max with on header and center

* [Layout] Notifications Header (#6910)

* Replace notifications screen header

* fix cropped indicator

---------

Co-authored-by: Samuel Newman <mozzius@protonmail.com>

* Replace Hashtag header (#6928)

* [Layout] ChatList header (#6929)

* Replace ChatList header

* update chat settings as well

---------

Co-authored-by: Samuel Newman <mozzius@protonmail.com>

* Add web borders to Chat settings

* Remove unused var

* Move ChatList header outside center

* Replace empty chat layout

* fix breakpoints

* [Layout] Scrollbar gutters (#6908)

* Fix sidebar alignment

* Make sure scrollbars don't hide

* Gift left nav more space

* Use stable one-edge, update logic in RightNav

* Ope

* Increase width

* Reset

* Add transform to sidebars

* Remove bg in sidebars

* Handle shifts in layout components

* Replace scroll-removal handling

* Make react-remove-scroll an explicit dep

* Remove unused script

* use correct scroll insets (#6950)

* [Layout] Feeds headers (#6913)

* Replace ViewHeader internals, duplicate old ViewHeader

* Replace Feeds header

* Replace SavedFeeds header

* Visual alignment

* Uglier but clear

* Use old ViewHeader for SavedFeeds

* use Layout.Center instead of Layout.Content

* use left-aligned header for feed edit

* delete unused old view header

---------

Co-authored-by: Samuel Newman <mozzius@protonmail.com>

* [Layout] Every other screen (#6953)

* attempt to fix double borders on every other screen

* delete ListHeaderDesktop

* delete `SimpleViewHeader` and fix screens (#6956)

* Make Layout.Center not full height

* Refactor List to use Layout.Center, remove built-in borders

* Fix Home screen

* Refactor PagerWithHeader to use Layout components

* Replace components in ProfileFeed and ProfileList

* Borders on Profile

* Search screen replacements

* use new header for profile subpage header (#6958)

* Search AutocompleteResults

* use new header for starter pack wizard (#6957)

* Fix post thread

* Enable borders by default

* Moderation muted and blocked accounts

* Fix scrollbar offset on Labeler

* Remove ScrollView from Moderation

* Remove ScrollView from Deactivated

* Remove ScrollView from onboarding

* Remove ScrollView from SignupQueued

* Mark deprecations

* fix lint

* Fix double borders on profile load

* Remove unneeded CenteredView from noty Feed

* Remove double Center layout on Notifications screen

* Remove double Center layout on ChatList screen

* Handle scrollbar offset in chat

* Use new atom for other scrollbar offsets

* Remove borders from old views

* Better doc

* Remove temp migration prop

* Fix new atom usage on native

* Clean up Hashtag screen

* Layout docs

* Clarify usage in Pager

* Handle nested offset contexts

* Clean up Layout

* fix feeds page

* asymmetric header on native (#6969)

* Reusable header const

* Fix up home header

* Add back button to convo

* Add hitslop to header buttons

* Comment

* Better handling on native for new atom

* Format

* Fix nested flatlist on mod screens

* Use react-remove-scroll-bar directly

* Fix notification count overflow on web

* Clarify doc

---------

Co-authored-by: Samuel Newman <mozzius@protonmail.com>

1 files changed, 188 insertions, 0 deletions

diff --git a/src/components/Layout/index.tsx b/src/components/Layout/index.tsx
new file mode 100644
index 000000000..d08505fbf
--- /dev/null
+++ b/src/components/Layout/index.tsx
@@ -0,0 +1,188 @@
+import React, {useContext, useMemo} from 'react'
+import {StyleSheet, View, ViewProps, ViewStyle} from 'react-native'
+import {StyleProp} from 'react-native'
+import {
+  KeyboardAwareScrollView,
+  KeyboardAwareScrollViewProps,
+} from 'react-native-keyboard-controller'
+import Animated, {
+  AnimatedScrollViewProps,
+  useAnimatedProps,
+} from 'react-native-reanimated'
+import {useSafeAreaInsets} from 'react-native-safe-area-context'
+
+import {isWeb} from '#/platform/detection'
+import {useShellLayout} from '#/state/shell/shell-layout'
+import {atoms as a, useBreakpoints, useTheme, web} from '#/alf'
+import {ScrollbarOffsetContext} from '#/components/Layout/context'
+
+export * from '#/components/Layout/const'
+export * as Header from '#/components/Layout/Header'
+
+export type ScreenProps = React.ComponentProps<typeof View> & {
+  style?: StyleProp<ViewStyle>
+}
+
+/**
+ * Outermost component of every screen
+ */
+export const Screen = React.memo(function Screen({
+  style,
+  ...props
+}: ScreenProps) {
+  const {top} = useSafeAreaInsets()
+  return (
+    <>
+      {isWeb && <WebCenterBorders />}
+      <View
+        style={[a.util_screen_outer, {paddingTop: top}, style]}
+        {...props}
+      />
+    </>
+  )
+})
+
+export type ContentProps = AnimatedScrollViewProps & {
+  style?: StyleProp<ViewStyle>
+  contentContainerStyle?: StyleProp<ViewStyle>
+}
+
+/**
+ * Default scroll view for simple pages
+ */
+export const Content = React.memo(function Content({
+  children,
+  style,
+  contentContainerStyle,
+  ...props
+}: ContentProps) {
+  const {footerHeight} = useShellLayout()
+  const animatedProps = useAnimatedProps(() => {
+    return {
+      scrollIndicatorInsets: {
+        bottom: footerHeight.get(),
+        top: 0,
+        right: 1,
+      },
+    } satisfies AnimatedScrollViewProps
+  })
+
+  return (
+    <Animated.ScrollView
+      id="content"
+      automaticallyAdjustsScrollIndicatorInsets={false}
+      // sets the scroll inset to the height of the footer
+      animatedProps={animatedProps}
+      style={[scrollViewStyles.common, style]}
+      contentContainerStyle={[
+        scrollViewStyles.contentContainer,
+        contentContainerStyle,
+      ]}
+      {...props}>
+      {isWeb ? (
+        // @ts-ignore web only -esb
+        <Center>{children}</Center>
+      ) : (
+        children
+      )}
+    </Animated.ScrollView>
+  )
+})
+
+const scrollViewStyles = StyleSheet.create({
+  common: {
+    width: '100%',
+  },
+  contentContainer: {
+    paddingBottom: 100,
+  },
+})
+
+export type KeyboardAwareContentProps = KeyboardAwareScrollViewProps & {
+  children: React.ReactNode
+  contentContainerStyle?: StyleProp<ViewStyle>
+}
+
+/**
+ * Default scroll view for simple pages.
+ *
+ * BE SURE TO TEST THIS WHEN USING, it's untested as of writing this comment.
+ */
+export const KeyboardAwareContent = React.memo(function LayoutScrollView({
+  children,
+  style,
+  contentContainerStyle,
+  ...props
+}: KeyboardAwareContentProps) {
+  return (
+    <KeyboardAwareScrollView
+      style={[scrollViewStyles.common, style]}
+      contentContainerStyle={[
+        scrollViewStyles.contentContainer,
+        contentContainerStyle,
+      ]}
+      keyboardShouldPersistTaps="handled"
+      {...props}>
+      {isWeb ? <Center>{children}</Center> : children}
+    </KeyboardAwareScrollView>
+  )
+})
+
+/**
+ * Utility component to center content within the screen
+ */
+export const Center = React.memo(function LayoutContent({
+  children,
+  style,
+  ...props
+}: ViewProps) {
+  const {isWithinOffsetView} = useContext(ScrollbarOffsetContext)
+  const {gtMobile} = useBreakpoints()
+  const ctx = useMemo(() => ({isWithinOffsetView: true}), [])
+  return (
+    <View
+      style={[
+        a.w_full,
+        a.mx_auto,
+        gtMobile && {
+          maxWidth: 600,
+        },
+        style,
+        !isWithinOffsetView && a.scrollbar_offset,
+      ]}
+      {...props}>
+      <ScrollbarOffsetContext.Provider value={ctx}>
+        {children}
+      </ScrollbarOffsetContext.Provider>
+    </View>
+  )
+})
+
+/**
+ * Only used within `Layout.Screen`, not for reuse
+ */
+const WebCenterBorders = React.memo(function LayoutContent() {
+  const t = useTheme()
+  const {gtMobile} = useBreakpoints()
+  return gtMobile ? (
+    <View
+      style={[
+        a.fixed,
+        a.inset_0,
+        a.border_l,
+        a.border_r,
+        t.atoms.border_contrast_low,
+        web({
+          width: 602,
+          left: '50%',
+          transform: [
+            {
+              translateX: '-50%',
+            },
+            ...a.scrollbar_offset.transform,
+          ],
+        }),
+      ]}
+    />
+  ) : null
+})