Animate the like button (#5033)
* Animate the like button * Respect reduced motion * Move like count into animated component * Animate text * Fix layout on Android * Animate text backwards too * Fix bad copypasta * Reflect nonlocal updates to animated valueszio/stable
dan
GitHub
parent
c41f372b3c
commit
ed232e69f7
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@ -6,6 +6,14 @@ import {
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View,
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type ViewStyle,
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} from 'react-native'
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import Animated, {
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Easing,
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interpolate,
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SharedValue,
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useAnimatedStyle,
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useSharedValue,
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withTiming,
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} from 'react-native-reanimated'
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import * as Clipboard from 'expo-clipboard'
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import {
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AppBskyFeedDefs,
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@ -24,6 +32,7 @@ import {shareUrl} from '#/lib/sharing'
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import {useGate} from '#/lib/statsig/statsig'
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import {toShareUrl} from '#/lib/strings/url-helpers'
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import {s} from '#/lib/styles'
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import {isWeb} from '#/platform/detection'
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import {Shadow} from '#/state/cache/types'
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import {useFeedFeedbackContext} from '#/state/feed-feedback'
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import {
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@ -45,6 +54,7 @@ import {
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Heart2_Stroke2_Corner0_Rounded as HeartIconOutline,
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} from '#/components/icons/Heart2'
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import * as Prompt from '#/components/Prompt'
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import {PlatformInfo} from '../../../../../modules/expo-bluesky-swiss-army'
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import {PostDropdownBtn} from '../forms/PostDropdownBtn'
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import {formatCount} from '../numeric/format'
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import {Text} from '../text/Text'
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@ -109,6 +119,19 @@ let PostCtrls = ({
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[t],
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) as StyleProp<ViewStyle>
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const likeValue = post.viewer?.like ? 1 : 0
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const likeIconAnimValue = useSharedValue(likeValue)
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const likeTextAnimValue = useSharedValue(likeValue)
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const nextExpectedLikeValue = React.useRef(likeValue)
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React.useEffect(() => {
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// Catch nonlocal changes (e.g. shadow update) and always reflect them.
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if (likeValue !== nextExpectedLikeValue.current) {
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nextExpectedLikeValue.current = likeValue
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likeIconAnimValue.value = likeValue
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likeTextAnimValue.value = likeValue
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}
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}, [likeValue, likeIconAnimValue, likeTextAnimValue])
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const onPressToggleLike = React.useCallback(async () => {
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if (isBlocked) {
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Toast.show(
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@ -120,6 +143,20 @@ let PostCtrls = ({
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try {
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if (!post.viewer?.like) {
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nextExpectedLikeValue.current = 1
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if (PlatformInfo.getIsReducedMotionEnabled()) {
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likeIconAnimValue.value = 1
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likeTextAnimValue.value = 1
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} else {
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likeIconAnimValue.value = withTiming(1, {
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duration: 400,
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easing: Easing.out(Easing.cubic),
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})
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likeTextAnimValue.value = withTiming(1, {
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duration: 400,
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easing: Easing.out(Easing.cubic),
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})
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}
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playHaptic()
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sendInteraction({
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item: post.uri,
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@ -129,6 +166,16 @@ let PostCtrls = ({
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captureAction(ProgressGuideAction.Like)
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await queueLike()
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} else {
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nextExpectedLikeValue.current = 0
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likeIconAnimValue.value = 0 // Intentionally not animated
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if (PlatformInfo.getIsReducedMotionEnabled()) {
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likeTextAnimValue.value = 0
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} else {
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likeTextAnimValue.value = withTiming(0, {
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duration: 400,
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easing: Easing.out(Easing.cubic),
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})
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}
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await queueUnlike()
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}
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} catch (e: any) {
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@ -138,6 +185,8 @@ let PostCtrls = ({
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}
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}, [
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_,
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likeIconAnimValue,
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likeTextAnimValue,
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playHaptic,
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post.uri,
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post.viewer?.like,
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@ -315,29 +364,14 @@ let PostCtrls = ({
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}
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accessibilityHint=""
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hitSlop={POST_CTRL_HITSLOP}>
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{post.viewer?.like ? (
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<HeartIconFilled style={s.likeColor} width={big ? 22 : 18} />
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) : (
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<HeartIconOutline
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style={[defaultCtrlColor, {pointerEvents: 'none'}]}
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width={big ? 22 : 18}
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<AnimatedLikeIcon
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big={big ?? false}
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likeIconAnimValue={likeIconAnimValue}
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likeTextAnimValue={likeTextAnimValue}
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defaultCtrlColor={defaultCtrlColor}
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isLiked={Boolean(post.viewer?.like)}
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likeCount={post.likeCount ?? 0}
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/>
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)}
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{typeof post.likeCount !== 'undefined' && post.likeCount > 0 ? (
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<Text
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testID="likeCount"
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style={[
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[
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big ? a.text_md : {fontSize: 15},
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a.user_select_none,
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post.viewer?.like
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? [a.font_bold, s.likeColor]
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: defaultCtrlColor,
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],
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]}>
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{formatCount(i18n, post.likeCount)}
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</Text>
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) : undefined}
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</Pressable>
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</View>
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{big && (
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@ -416,3 +450,194 @@ let PostCtrls = ({
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}
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PostCtrls = memo(PostCtrls)
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export {PostCtrls}
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function AnimatedLikeIcon({
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big,
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likeIconAnimValue,
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likeTextAnimValue,
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defaultCtrlColor,
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isLiked,
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likeCount,
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}: {
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big: boolean
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likeIconAnimValue: SharedValue<number>
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likeTextAnimValue: SharedValue<number>
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defaultCtrlColor: StyleProp<ViewStyle>
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isLiked: boolean
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likeCount: number
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}) {
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const t = useTheme()
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const {i18n} = useLingui()
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const likeStyle = useAnimatedStyle(() => ({
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transform: [
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{
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scale: interpolate(
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likeIconAnimValue.value,
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[0, 0.1, 0.4, 1],
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[1, 0.7, 1.2, 1],
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'clamp',
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),
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},
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],
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}))
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const circle1Style = useAnimatedStyle(() => ({
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opacity: interpolate(
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likeIconAnimValue.value,
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[0, 0.1, 0.95, 1],
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[0, 0.4, 0.4, 0],
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'clamp',
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),
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transform: [
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{
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scale: interpolate(
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likeIconAnimValue.value,
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[0, 0.4, 1],
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[0, 1.5, 1.5],
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'clamp',
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),
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},
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],
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}))
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const circle2Style = useAnimatedStyle(() => ({
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opacity: interpolate(
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likeIconAnimValue.value,
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[0, 0.1, 0.95, 1],
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[0, 1, 1, 0],
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'clamp',
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),
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transform: [
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{
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scale: interpolate(
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likeIconAnimValue.value,
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[0, 0.4, 1],
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[0, 0, 1.5],
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'clamp',
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),
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},
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],
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}))
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const countStyle = useAnimatedStyle(() => ({
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transform: [
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{
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translateY: interpolate(
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likeTextAnimValue.value,
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[0, 1],
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[0, big ? -22 : -18],
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'clamp',
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),
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},
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],
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}))
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const prevFormattedCount = formatCount(
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i18n,
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isLiked ? likeCount - 1 : likeCount,
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)
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const nextFormattedCount = formatCount(
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i18n,
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isLiked ? likeCount : likeCount + 1,
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)
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const shouldRollLike =
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prevFormattedCount !== nextFormattedCount && prevFormattedCount !== '0'
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return (
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<>
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<View>
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<Animated.View
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style={[
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{
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position: 'absolute',
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backgroundColor: s.likeColor.color,
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top: 0,
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left: 0,
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width: big ? 22 : 18,
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height: big ? 22 : 18,
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zIndex: -1,
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pointerEvents: 'none',
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borderRadius: (big ? 22 : 18) / 2,
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},
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circle1Style,
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]}
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/>
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<Animated.View
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style={[
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{
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position: 'absolute',
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backgroundColor: isWeb
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? t.atoms.bg_contrast_25.backgroundColor
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: t.atoms.bg.backgroundColor,
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top: 0,
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left: 0,
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width: big ? 22 : 18,
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height: big ? 22 : 18,
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zIndex: -1,
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pointerEvents: 'none',
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borderRadius: (big ? 22 : 18) / 2,
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},
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circle2Style,
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]}
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/>
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<Animated.View style={likeStyle}>
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{isLiked ? (
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<HeartIconFilled style={s.likeColor} width={big ? 22 : 18} />
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) : (
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<HeartIconOutline
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style={[defaultCtrlColor, {pointerEvents: 'none'}]}
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width={big ? 22 : 18}
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/>
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)}
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</Animated.View>
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</View>
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<View style={{overflow: 'hidden'}}>
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<Text
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testID="likeCount"
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style={[
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[
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big ? a.text_md : {fontSize: 15},
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a.user_select_none,
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isLiked ? [a.font_bold, s.likeColor] : defaultCtrlColor,
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{opacity: shouldRollLike ? 0 : 1},
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],
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]}>
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{likeCount > 0 ? formatCount(i18n, likeCount) : ''}
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</Text>
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<Animated.View
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aria-hidden={true}
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style={[
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countStyle,
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{
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position: 'absolute',
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top: 0,
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left: 0,
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opacity: shouldRollLike ? 1 : 0,
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},
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]}>
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<Text
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testID="likeCount"
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style={[
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[
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big ? a.text_md : {fontSize: 15},
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a.user_select_none,
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isLiked ? [a.font_bold, s.likeColor] : defaultCtrlColor,
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{height: big ? 22 : 18},
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],
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]}>
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{prevFormattedCount}
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</Text>
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<Text
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testID="likeCount"
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style={[
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[
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big ? a.text_md : {fontSize: 15},
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a.user_select_none,
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isLiked ? [a.font_bold, s.likeColor] : defaultCtrlColor,
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{height: big ? 22 : 18},
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],
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]}>
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{nextFormattedCount}
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</Text>
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</Animated.View>
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</View>
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</>
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)
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}
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