diff options
author | Kirill Rogovoy <[email protected]> | 2021-07-20 21:24:52 +0300 |
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committer | Kirill Rogovoy <[email protected]> | 2021-07-20 21:24:52 +0300 |
commit | 5f4611d65e40eae3ca6191a15f68d69ea5a1c4cb (patch) | |
tree | 273dfc086444533d86d580961c92ba8d14781a67 /app_expo/components/screen | |
parent | f0bf4e7afdcd8b02a62be45ab3e7d047ed865a79 (diff) |
WIP
Diffstat (limited to 'app_expo/components/screen')
-rw-r--r-- | app_expo/components/screen/screen.presets.ts | 66 | ||||
-rw-r--r-- | app_expo/components/screen/screen.props.ts | 46 | ||||
-rw-r--r-- | app_expo/components/screen/screen.tsx | 66 |
3 files changed, 178 insertions, 0 deletions
diff --git a/app_expo/components/screen/screen.presets.ts b/app_expo/components/screen/screen.presets.ts new file mode 100644 index 0000000..aa8d8cf --- /dev/null +++ b/app_expo/components/screen/screen.presets.ts @@ -0,0 +1,66 @@ +import { ViewStyle } from 'react-native' +import { color } from '../../theme' + +/** + * All screen keyboard offsets. + */ +export const offsets = { + none: 0, +} + +/** + * The variations of keyboard offsets. + */ +export type KeyboardOffsets = keyof typeof offsets + +/** + * All the variations of screens. + */ +export const presets = { + /** + * No scrolling. Suitable for full-screen carousels and components + * which have built-in scrolling like FlatList. + */ + fixed: { + outer: { + backgroundColor: color.background, + flex: 1, + height: '100%', + } as ViewStyle, + inner: { + justifyContent: 'flex-start', + alignItems: 'stretch', + height: '100%', + width: '100%', + } as ViewStyle, + }, + + /** + * Scrolls. Suitable for forms or other things requiring a keyboard. + * + * Pick this one if you don't know which one you want yet. + */ + scroll: { + outer: { + backgroundColor: color.background, + flex: 1, + height: '100%', + } as ViewStyle, + inner: { justifyContent: 'flex-start', alignItems: 'stretch' } as ViewStyle, + }, +} + +/** + * The variations of screens. + */ +export type ScreenPresets = keyof typeof presets + +/** + * Is this preset a non-scrolling one? + * + * @param preset The preset to check + */ +export function isNonScrolling(preset?: ScreenPresets) { + // any of these things will make you scroll + return !preset || !presets[preset] || preset === 'fixed' +} diff --git a/app_expo/components/screen/screen.props.ts b/app_expo/components/screen/screen.props.ts new file mode 100644 index 0000000..1371c64 --- /dev/null +++ b/app_expo/components/screen/screen.props.ts @@ -0,0 +1,46 @@ +import React from 'react' +import { StyleProp, ViewStyle } from 'react-native' +import { KeyboardOffsets, ScreenPresets } from './screen.presets' + +export interface ScreenProps { + /** + * Children components. + */ + children?: React.ReactNode + + /** + * An optional style override useful for padding & margin. + */ + style?: StyleProp<ViewStyle> + + /** + * One of the different types of presets. + */ + preset?: ScreenPresets + + /** + * An optional background color + */ + backgroundColor?: string + + /** + * An optional status bar setting. Defaults to light-content. + */ + statusBar?: 'light-content' | 'dark-content' + + /** + * Should we not wrap in SafeAreaView? Defaults to false. + */ + unsafe?: boolean + + /** + * By how much should we offset the keyboard? Defaults to none. + */ + keyboardOffset?: KeyboardOffsets + + /** + * Should keyboard persist on screen tap. Defaults to handled. + * Only applies to scroll preset. + */ + keyboardShouldPersistTaps?: 'handled' | 'always' | 'never' +} diff --git a/app_expo/components/screen/screen.tsx b/app_expo/components/screen/screen.tsx new file mode 100644 index 0000000..dafe36e --- /dev/null +++ b/app_expo/components/screen/screen.tsx @@ -0,0 +1,66 @@ +import * as React from 'react' +import { KeyboardAvoidingView, Platform, ScrollView, StatusBar, View } from 'react-native' +import { useSafeAreaInsets } from 'react-native-safe-area-context' +import { ScreenProps } from './screen.props' +import { isNonScrolling, offsets, presets } from './screen.presets' + +const isIos = Platform.OS === 'ios' + +function ScreenWithoutScrolling(props: ScreenProps) { + const insets = useSafeAreaInsets() + const preset = presets.fixed + const style = props.style || {} + const backgroundStyle = props.backgroundColor ? { backgroundColor: props.backgroundColor } : {} + const insetStyle = { paddingTop: props.unsafe ? 0 : insets.top } + + return ( + <KeyboardAvoidingView + style={[preset.outer, backgroundStyle]} + behavior={isIos ? 'padding' : undefined} + keyboardVerticalOffset={offsets[props.keyboardOffset || 'none']} + > + <StatusBar barStyle={props.statusBar || 'light-content'} /> + <View style={[preset.inner, style, insetStyle]}>{props.children}</View> + </KeyboardAvoidingView> + ) +} + +function ScreenWithScrolling(props: ScreenProps) { + const insets = useSafeAreaInsets() + const preset = presets.scroll + const style = props.style || {} + const backgroundStyle = props.backgroundColor ? { backgroundColor: props.backgroundColor } : {} + const insetStyle = { paddingTop: props.unsafe ? 0 : insets.top } + + return ( + <KeyboardAvoidingView + style={[preset.outer, backgroundStyle]} + behavior={isIos ? 'padding' : undefined} + keyboardVerticalOffset={offsets[props.keyboardOffset || 'none']} + > + <StatusBar barStyle={props.statusBar || 'light-content'} /> + <View style={[preset.outer, backgroundStyle, insetStyle]}> + <ScrollView + style={[preset.outer, backgroundStyle]} + contentContainerStyle={[preset.inner, style]} + keyboardShouldPersistTaps={props.keyboardShouldPersistTaps || 'handled'} + > + {props.children} + </ScrollView> + </View> + </KeyboardAvoidingView> + ) +} + +/** + * The starting component on every screen in the app. + * + * @param props The screen props + */ +export function Screen(props: ScreenProps) { + if (isNonScrolling(props.preset)) { + return <ScreenWithoutScrolling {...props} /> + } else { + return <ScreenWithScrolling {...props} /> + } +} |