Implement pager and tabbar for desktop web

1 files changed, 72 insertions, 0 deletions

diff --git a/src/view/screens/home/FeedsTabBar.tsx b/src/view/screens/home/FeedsTabBar.tsx
new file mode 100644
index 000000000..d34034103
--- /dev/null
+++ b/src/view/screens/home/FeedsTabBar.tsx
@@ -0,0 +1,72 @@
+import React from 'react'
+import {Animated, StyleSheet} from 'react-native'
+import {observer} from 'mobx-react-lite'
+import {TabBar} from 'view/com/util/TabBar'
+import {RenderTabBarFnProps} from 'view/com/util/pager/Pager'
+import {useStores} from 'state/index'
+import {usePalette} from 'lib/hooks/usePalette'
+import {useSafeAreaInsets} from 'react-native-safe-area-context'
+import {useAnimatedValue} from 'lib/hooks/useAnimatedValue'
+import {clamp} from 'lodash'
+
+const BOTTOM_BAR_HEIGHT = 48
+
+export const FeedsTabBar = observer(
+  (props: RenderTabBarFnProps & {onPressSelected: () => void}) => {
+    const store = useStores()
+    const safeAreaInsets = useSafeAreaInsets()
+    const pal = usePalette('default')
+    const interp = useAnimatedValue(0)
+
+    const pad = React.useMemo(
+      () => ({
+        paddingBottom: clamp(safeAreaInsets.bottom, 15, 20),
+      }),
+      [safeAreaInsets],
+    )
+
+    React.useEffect(() => {
+      Animated.timing(interp, {
+        toValue: store.shell.minimalShellMode ? 0 : 1,
+        duration: 100,
+        useNativeDriver: true,
+        isInteraction: false,
+      }).start()
+    }, [interp, store.shell.minimalShellMode])
+    const transform = {
+      transform: [
+        {translateY: Animated.multiply(interp, -1 * BOTTOM_BAR_HEIGHT)},
+      ],
+    }
+
+    return (
+      <Animated.View
+        style={[pal.view, pal.border, styles.tabBar, pad, transform]}>
+        <TabBar
+          {...props}
+          items={['Following', "What's hot"]}
+          indicatorPosition="top"
+          indicatorColor={pal.colors.link}
+        />
+      </Animated.View>
+    )
+  },
+)
+
+const styles = StyleSheet.create({
+  tabBar: {
+    position: 'absolute',
+    left: 0,
+    right: 0,
+    bottom: 0,
+    flexDirection: 'row',
+    alignItems: 'center',
+    paddingHorizontal: 10,
+    borderTopWidth: 1,
+    paddingTop: 0,
+    paddingBottom: 30,
+  },
+  tabBarAvi: {
+    marginRight: 4,
+  },
+})