Add `list hidden` screen (#4958)

Co-authored-by: Hailey <me@haileyok.com>
Co-authored-by: Eric Bailey <git@esb.lol>

2 files changed, 91 insertions, 2 deletions

diff --git a/src/components/moderation/Hider.tsx b/src/components/moderation/Hider.tsx
new file mode 100644
index 000000000..fcb88ddd9
--- /dev/null
+++ b/src/components/moderation/Hider.tsx
@@ -0,0 +1,89 @@
+import React from 'react'
+import {ModerationUI} from '@atproto/api'
+
+import {
+  ModerationCauseDescription,
+  useModerationCauseDescription,
+} from '#/lib/moderation/useModerationCauseDescription'
+import {
+  ModerationDetailsDialog,
+  useModerationDetailsDialogControl,
+} from '#/components/moderation/ModerationDetailsDialog'
+
+type Context = {
+  isContentVisible: boolean
+  setIsContentVisible: (show: boolean) => void
+  info: ModerationCauseDescription
+  showInfoDialog: () => void
+  meta: {
+    isNoPwi: boolean
+    allowOverride: boolean
+  }
+}
+
+const Context = React.createContext<Context>({} as Context)
+
+export const useHider = () => React.useContext(Context)
+
+export function Outer({
+  modui,
+  isContentVisibleInitialState,
+  allowOverride,
+  children,
+}: React.PropsWithChildren<{
+  isContentVisibleInitialState?: boolean
+  allowOverride?: boolean
+  modui: ModerationUI | undefined
+}>) {
+  const control = useModerationDetailsDialogControl()
+  const blur = modui?.blurs[0]
+  const [isContentVisible, setIsContentVisible] = React.useState(
+    isContentVisibleInitialState || !blur,
+  )
+  const info = useModerationCauseDescription(blur)
+
+  const meta = {
+    isNoPwi: Boolean(
+      modui?.blurs.find(
+        cause =>
+          cause.type === 'label' &&
+          cause.labelDef.identifier === '!no-unauthenticated',
+      ),
+    ),
+    allowOverride: allowOverride ?? !modui?.noOverride,
+  }
+
+  const showInfoDialog = () => {
+    control.open()
+  }
+
+  const onSetContentVisible = (show: boolean) => {
+    if (meta.allowOverride) return
+    setIsContentVisible(show)
+  }
+
+  const ctx = {
+    isContentVisible,
+    setIsContentVisible: onSetContentVisible,
+    showInfoDialog,
+    info,
+    meta,
+  }
+
+  return (
+    <Context.Provider value={ctx}>
+      {children}
+      <ModerationDetailsDialog control={control} modcause={blur} />
+    </Context.Provider>
+  )
+}
+
+export function Content({children}: {children: React.ReactNode}) {
+  const ctx = useHider()
+  return ctx.isContentVisible ? children : null
+}
+
+export function Mask({children}: {children: React.ReactNode}) {
+  const ctx = useHider()
+  return ctx.isContentVisible ? null : children
+}
diff --git a/src/components/moderation/ModerationDetailsDialog.tsx b/src/components/moderation/ModerationDetailsDialog.tsx
index ebfe45232..b8f02582c 100644
--- a/src/components/moderation/ModerationDetailsDialog.tsx
+++ b/src/components/moderation/ModerationDetailsDialog.tsx
@@ -18,7 +18,7 @@ export {useDialogControl as useModerationDetailsDialogControl} from '#/component
 
 export interface ModerationDetailsDialogProps {
   control: Dialog.DialogOuterProps['control']
-  modcause: ModerationCause
+  modcause?: ModerationCause
 }
 
 export function ModerationDetailsDialog(props: ModerationDetailsDialogProps) {
@@ -123,7 +123,7 @@ function ModerationDetailsDialogInner({
         {description}
       </Text>
 
-      {modcause.type === 'label' && (
+      {modcause?.type === 'label' && (
         <>
           <Divider />
           <Text style={[t.atoms.text, a.text_md, a.leading_snug, a.mt_lg]}>