1 files changed, 177 insertions, 0 deletions
diff --git a/src/view/com/util/DropdownBtn.tsx b/src/view/com/util/DropdownBtn.tsx
new file mode 100644
index 000000000..825a5395c
--- /dev/null
+++ b/src/view/com/util/DropdownBtn.tsx
@@ -0,0 +1,177 @@
+import React, {useRef} from 'react'
+import {
+  StyleProp,
+  StyleSheet,
+  Text,
+  TouchableOpacity,
+  TouchableWithoutFeedback,
+  View,
+  ViewStyle,
+} from 'react-native'
+import {IconProp} from '@fortawesome/fontawesome-svg-core'
+import RootSiblings from 'react-native-root-siblings'
+import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome'
+import {colors} from '../../lib/styles'
+import {useStores} from '../../../state'
+import {SharePostModel} from '../../../state/models/shell'
+
+export interface DropdownItem {
+  icon?: IconProp
+  label: string
+  onPress: () => void
+}
+
+export function DropdownBtn({
+  style,
+  items,
+  menuWidth,
+  children,
+}: {
+  style?: StyleProp<ViewStyle>
+  items: DropdownItem[]
+  menuWidth?: number
+  children?: React.ReactNode
+}) {
+  const ref = useRef<TouchableOpacity>(null)
+
+  const onPress = () => {
+    ref.current?.measure(
+      (
+        _x: number,
+        _y: number,
+        width: number,
+        height: number,
+        pageX: number,
+        pageY: number,
+      ) => {
+        if (!menuWidth) {
+          menuWidth = 200
+        }
+        createDropdownMenu(
+          pageX + width - menuWidth,
+          pageY + height,
+          menuWidth,
+          items,
+        )
+      },
+    )
+  }
+
+  return (
+    <TouchableOpacity style={style} onPress={onPress} ref={ref}>
+      {children}
+    </TouchableOpacity>
+  )
+}
+
+export function PostDropdownBtn({
+  style,
+  children,
+  itemHref,
+  itemTitle,
+}: {
+  style?: StyleProp<ViewStyle>
+  children?: React.ReactNode
+  itemHref: string
+  itemTitle: string
+}) {
+  const store = useStores()
+
+  const dropdownItems: DropdownItem[] = [
+    {
+      icon: ['far', 'clone'],
+      label: 'Open in new tab',
+      onPress() {
+        store.nav.newTab(itemHref)
+      },
+    },
+    {
+      icon: 'share',
+      label: 'Share...',
+      onPress() {
+        store.shell.openModal(new SharePostModel(itemHref))
+      },
+    },
+  ]
+
+  return (
+    <DropdownBtn style={style} items={dropdownItems} menuWidth={200}>
+      {children}
+    </DropdownBtn>
+  )
+}
+
+function createDropdownMenu(
+  x: number,
+  y: number,
+  width: number,
+  items: DropdownItem[],
+): RootSiblings {
+  const onPressItem = (index: number) => {
+    sibling.destroy()
+    items[index].onPress()
+  }
+  const onOuterPress = () => sibling.destroy()
+  const sibling = new RootSiblings(
+    (
+      <>
+        <TouchableWithoutFeedback onPress={onOuterPress}>
+          <View style={styles.bg} />
+        </TouchableWithoutFeedback>
+        <View style={[styles.menu, {left: x, top: y, width}]}>
+          {items.map((item, index) => (
+            <TouchableOpacity
+              key={index}
+              style={[styles.menuItem]}
+              onPress={() => onPressItem(index)}>
+              {item.icon && (
+                <FontAwesomeIcon style={styles.icon} icon={item.icon} />
+              )}
+              <Text style={styles.label}>{item.label}</Text>
+            </TouchableOpacity>
+          ))}
+        </View>
+      </>
+    ),
+  )
+  return sibling
+}
+
+const styles = StyleSheet.create({
+  bg: {
+    position: 'absolute',
+    top: 0,
+    right: 0,
+    bottom: 0,
+    left: 0,
+    backgroundColor: '#000',
+    opacity: 0.1,
+  },
+  menu: {
+    position: 'absolute',
+    backgroundColor: '#fff',
+    borderRadius: 14,
+    opacity: 1,
+    paddingVertical: 6,
+  },
+  menuItem: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    paddingVertical: 6,
+    paddingLeft: 10,
+    paddingRight: 30,
+  },
+  menuItemBorder: {
+    borderTopWidth: 1,
+    borderTopColor: colors.gray1,
+    marginTop: 4,
+    paddingTop: 12,
+  },
+  icon: {
+    marginLeft: 6,
+    marginRight: 8,
+  },
+  label: {
+    fontSize: 15,
+  },
+})