From dcf6a497157afcc9fa8820128a85362bcb71fdc7 Mon Sep 17 00:00:00 2001
From: Paul Frazee <pfrazee@gmail.com>
Date: Wed, 16 Nov 2022 10:58:39 -0600
Subject: [PATCH] Add animations to post controls

---
 src/view/com/util/PostCtrls.tsx | 167 +++++++++++++++++++++++---------
 1 file changed, 122 insertions(+), 45 deletions(-)

diff --git a/src/view/com/util/PostCtrls.tsx b/src/view/com/util/PostCtrls.tsx
index 707030ea..ab9e261c 100644
--- a/src/view/com/util/PostCtrls.tsx
+++ b/src/view/com/util/PostCtrls.tsx
@@ -1,5 +1,12 @@
 import React from 'react'
 import {StyleSheet, Text, TouchableOpacity, View} from 'react-native'
+import Animated, {
+  useSharedValue,
+  useAnimatedStyle,
+  withDelay,
+  withTiming,
+  interpolate,
+} from 'react-native-reanimated'
 import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome'
 import {UpIcon, UpIconSolid, DownIcon, DownIconSolid} from '../../lib/icons'
 import {s, colors} from '../../lib/styles'
@@ -19,48 +26,123 @@ interface PostCtrlsOpts {
 }
 
 export function PostCtrls(opts: PostCtrlsOpts) {
+  const interp1 = useSharedValue<number>(0)
+  const interp2 = useSharedValue<number>(0)
+  const interp3 = useSharedValue<number>(0)
+
+  const anim1Style = useAnimatedStyle(() => ({
+    transform: [{scale: interpolate(interp1.value, [0, 1.0], [1.0, 3.0])}],
+    opacity: interpolate(interp1.value, [0, 1.0], [1.0, 0.0]),
+  }))
+  const anim2Style = useAnimatedStyle(() => ({
+    transform: [{scale: interpolate(interp2.value, [0, 1.0], [1.0, 3.0])}],
+    opacity: interpolate(interp2.value, [0, 1.0], [1.0, 0.0]),
+  }))
+  const anim3Style = useAnimatedStyle(() => ({
+    transform: [{scale: interpolate(interp3.value, [0, 1.0], [1.0, 3.0])}],
+    opacity: interpolate(interp3.value, [0, 1.0], [1.0, 0.0]),
+  }))
+
+  const onPressToggleRepostWrapper = () => {
+    if (!opts.isReposted) {
+      interp1.value = withTiming(1, {duration: 300}, () => {
+        interp1.value = withDelay(100, withTiming(0, {duration: 20}))
+      })
+    }
+    opts.onPressToggleRepost()
+  }
+  const onPressToggleUpvoteWrapper = () => {
+    if (!opts.isUpvoted) {
+      interp2.value = withTiming(1, {duration: 300}, () => {
+        interp2.value = withDelay(100, withTiming(0, {duration: 20}))
+      })
+    }
+    opts.onPressToggleUpvote()
+  }
+  const onPressToggleDownvoteWrapper = () => {
+    if (!opts.isDownvoted) {
+      interp3.value = withTiming(1, {duration: 300}, () => {
+        interp3.value = withDelay(100, withTiming(0, {duration: 20}))
+      })
+    }
+    opts.onPressToggleDownvote()
+  }
+
   return (
     <View style={styles.ctrls}>
-      <TouchableOpacity style={styles.ctrl} onPress={opts.onPressReply}>
-        <FontAwesomeIcon
-          style={styles.ctrlIcon}
-          icon={['far', 'comment']}
-          size={14}
-        />
-        <Text style={s.f13}>{opts.replyCount}</Text>
-      </TouchableOpacity>
-      <TouchableOpacity style={styles.ctrl} onPress={opts.onPressToggleRepost}>
-        <FontAwesomeIcon
-          style={opts.isReposted ? styles.ctrlIconReposted : styles.ctrlIcon}
-          icon="retweet"
-          size={18}
-        />
-        <Text style={opts.isReposted ? [s.bold, s.green3, s.f13] : s.f13}>
-          {opts.repostCount}
-        </Text>
-      </TouchableOpacity>
-      <TouchableOpacity style={styles.ctrl} onPress={opts.onPressToggleUpvote}>
-        {opts.isUpvoted ? (
-          <UpIconSolid style={styles.ctrlIconUpvoted} size={18} />
-        ) : (
-          <UpIcon style={styles.ctrlIcon} size={18} />
-        )}
-        <Text style={opts.isUpvoted ? [s.bold, s.red3, s.f13] : s.f13}>
-          {opts.upvoteCount}
-        </Text>
-      </TouchableOpacity>
-      <TouchableOpacity
-        style={styles.ctrl}
-        onPress={opts.onPressToggleDownvote}>
-        {opts.isDownvoted ? (
-          <DownIconSolid style={styles.ctrlIconDownvoted} size={18} />
-        ) : (
-          <DownIcon style={styles.ctrlIcon} size={18} />
-        )}
-        <Text style={opts.isDownvoted ? [s.bold, s.blue3, s.f13] : s.f13}>
-          {opts.downvoteCount}
-        </Text>
-      </TouchableOpacity>
+      <View style={s.flex1}>
+        <TouchableOpacity style={styles.ctrl} onPress={opts.onPressReply}>
+          <FontAwesomeIcon
+            style={styles.ctrlIcon}
+            icon={['far', 'comment']}
+            size={14}
+          />
+          <Text style={s.f13}>{opts.replyCount}</Text>
+        </TouchableOpacity>
+      </View>
+      <View style={s.flex1}>
+        <TouchableOpacity
+          onPress={onPressToggleRepostWrapper}
+          style={styles.ctrl}>
+          <Animated.View style={anim1Style}>
+            <FontAwesomeIcon
+              style={
+                opts.isReposted ? styles.ctrlIconReposted : styles.ctrlIcon
+              }
+              icon="retweet"
+              size={18}
+            />
+          </Animated.View>
+          <Text
+            style={
+              opts.isReposted
+                ? [s.bold, s.green3, s.f13, s.ml5]
+                : [s.f13, s.ml5]
+            }>
+            {opts.repostCount}
+          </Text>
+        </TouchableOpacity>
+      </View>
+      <View style={s.flex1}>
+        <TouchableOpacity
+          style={styles.ctrl}
+          onPress={onPressToggleUpvoteWrapper}>
+          <Animated.View style={anim2Style}>
+            {opts.isUpvoted ? (
+              <UpIconSolid style={styles.ctrlIconUpvoted} size={18} />
+            ) : (
+              <UpIcon style={styles.ctrlIcon} size={18} />
+            )}
+          </Animated.View>
+          <Text
+            style={
+              opts.isUpvoted ? [s.bold, s.red3, s.f13, s.ml5] : [s.f13, s.ml5]
+            }>
+            {opts.upvoteCount}
+          </Text>
+        </TouchableOpacity>
+      </View>
+      <View style={s.flex1}>
+        <TouchableOpacity
+          style={styles.ctrl}
+          onPress={onPressToggleDownvoteWrapper}>
+          <Animated.View style={anim3Style}>
+            {opts.isDownvoted ? (
+              <DownIconSolid style={styles.ctrlIconDownvoted} size={18} />
+            ) : (
+              <DownIcon style={styles.ctrlIcon} size={18} />
+            )}
+          </Animated.View>
+          <Text
+            style={
+              opts.isDownvoted
+                ? [s.bold, s.blue3, s.f13, s.ml5]
+                : [s.f13, s.ml5]
+            }>
+            {opts.downvoteCount}
+          </Text>
+        </TouchableOpacity>
+      </View>
     </View>
   )
 }
@@ -72,24 +154,19 @@ const styles = StyleSheet.create({
   ctrl: {
     flexDirection: 'row',
     alignItems: 'center',
-    flex: 1,
     paddingLeft: 4,
     paddingRight: 4,
   },
   ctrlIcon: {
-    marginRight: 5,
     color: colors.gray5,
   },
   ctrlIconReposted: {
-    marginRight: 5,
     color: colors.green3,
   },
   ctrlIconUpvoted: {
-    marginRight: 5,
     color: colors.red3,
   },
   ctrlIconDownvoted: {
-    marginRight: 5,
     color: colors.blue3,
   },
 })