3 files changed, 87 insertions, 0 deletions
diff --git a/src/view/com/util/fab/FAB.tsx b/src/view/com/util/fab/FAB.tsx
new file mode 100644
index 000000000..b222fe45c
--- /dev/null
+++ b/src/view/com/util/fab/FAB.tsx
@@ -0,0 +1 @@
+export {FABInner as FAB} from './FABInner'
diff --git a/src/view/com/util/fab/FAB.web.tsx b/src/view/com/util/fab/FAB.web.tsx
new file mode 100644
index 000000000..0a8831fa9
--- /dev/null
+++ b/src/view/com/util/fab/FAB.web.tsx
@@ -0,0 +1,14 @@
+import React from 'react'
+import {View} from 'react-native'
+import {FABInner, FABProps} from './FABInner'
+import {useWebMediaQueries} from 'lib/hooks/useWebMediaQueries'
+
+export const FAB = (_opts: FABProps) => {
+  const {isDesktop} = useWebMediaQueries()
+
+  if (!isDesktop) {
+    return <FABInner {..._opts} />
+  }
+
+  return <View />
+}
diff --git a/src/view/com/util/fab/FABInner.tsx b/src/view/com/util/fab/FABInner.tsx
new file mode 100644
index 000000000..3d44c0dd4
--- /dev/null
+++ b/src/view/com/util/fab/FABInner.tsx
@@ -0,0 +1,72 @@
+import React from 'react'
+import {observer} from 'mobx-react-lite'
+import {
+  Animated,
+  GestureResponderEvent,
+  StyleSheet,
+  TouchableWithoutFeedback,
+} from 'react-native'
+import LinearGradient from 'react-native-linear-gradient'
+import {gradients} from 'lib/styles'
+import {useAnimatedValue} from 'lib/hooks/useAnimatedValue'
+import {useStores} from 'state/index'
+import {isMobileWeb} from 'platform/detection'
+
+type OnPress = ((event: GestureResponderEvent) => void) | undefined
+export interface FABProps {
+  testID?: string
+  icon: JSX.Element
+  onPress: OnPress
+}
+
+export const FABInner = observer(({testID, icon, onPress}: FABProps) => {
+  const store = useStores()
+  const interp = useAnimatedValue(0)
+  React.useEffect(() => {
+    Animated.timing(interp, {
+      toValue: store.shell.minimalShellMode ? 1 : 0,
+      duration: 100,
+      useNativeDriver: true,
+      isInteraction: false,
+    }).start()
+  }, [interp, store.shell.minimalShellMode])
+  const transform = {
+    transform: [{translateY: Animated.multiply(interp, 60)}],
+  }
+  return (
+    <TouchableWithoutFeedback testID={testID} onPress={onPress}>
+      <Animated.View
+        style={[styles.outer, isMobileWeb && styles.mobileWebOuter, transform]}>
+        <LinearGradient
+          colors={[gradients.blueLight.start, gradients.blueLight.end]}
+          start={{x: 0, y: 0}}
+          end={{x: 1, y: 1}}
+          style={styles.inner}>
+          {icon}
+        </LinearGradient>
+      </Animated.View>
+    </TouchableWithoutFeedback>
+  )
+})
+
+const styles = StyleSheet.create({
+  outer: {
+    position: 'absolute',
+    zIndex: 1,
+    right: 28,
+    bottom: 94,
+    width: 60,
+    height: 60,
+    borderRadius: 30,
+  },
+  mobileWebOuter: {
+    bottom: 114,
+  },
+  inner: {
+    width: 60,
+    height: 60,
+    borderRadius: 30,
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+})