Add visual indicator & link to nested quote posts (#34766)

app/javascript/mastodon/components/status_quoted.tsx

@@ -1,18 +1,24 @@
 import { FormattedMessage } from 'react-intl';
 
 import classNames from 'classnames';
+import { Link } from 'react-router-dom';
 
 import type { Map as ImmutableMap } from 'immutable';
 
+import ArticleIcon from '@/material-icons/400-24px/article.svg?react';
+import ChevronRightIcon from '@/material-icons/400-24px/chevron_right.svg?react';
 import { Icon } from 'mastodon/components/icon';
 import StatusContainer from 'mastodon/containers/status_container';
+import type { Status } from 'mastodon/models/status';
 import { useAppSelector } from 'mastodon/store';
 
 import QuoteIcon from '../../images/quote.svg?react';
 
+const MAX_QUOTE_POSTS_NESTING_LEVEL = 1;
+
 const QuoteWrapper: React.FC<{
   isError?: boolean;
-  children: React.ReactNode;
+  children: React.ReactElement;
 }> = ({ isError, children }) => {
   return (
     <div
@@ -26,16 +32,52 @@ const QuoteWrapper: React.FC<{
   );
 };
 
+const QuoteLink: React.FC<{
+  status: Status;
+}> = ({ status }) => {
+  const accountId = status.get('account') as string;
+  const account = useAppSelector((state) =>
+    accountId ? state.accounts.get(accountId) : undefined,
+  );
+
+  const quoteAuthorName = account?.display_name_html;
+
+  if (!quoteAuthorName) {
+    return null;
+  }
+
+  const quoteAuthorElement = (
+    <span dangerouslySetInnerHTML={{ __html: quoteAuthorName }} />
+  );
+  const quoteUrl = `/@${account.get('acct')}/${status.get('id') as string}`;
+
+  return (
+    <Link to={quoteUrl} className='status__quote-author-button'>
+      <FormattedMessage
+        id='status.quote_post_author'
+        defaultMessage='Post by {name}'
+        values={{ name: quoteAuthorElement }}
+      />
+      <Icon id='chevron_right' icon={ChevronRightIcon} />
+      <Icon id='article' icon={ArticleIcon} />
+    </Link>
+  );
+};
+
 type QuoteMap = ImmutableMap<'state' | 'quoted_status', string | null>;
 
-export const QuotedStatus: React.FC<{ quote: QuoteMap }> = ({ quote }) => {
+export const QuotedStatus: React.FC<{
+  quote: QuoteMap;
+  variant?: 'full' | 'link';
+  nestingLevel?: number;
+}> = ({ quote, nestingLevel = 1, variant = 'full' }) => {
   const quotedStatusId = quote.get('quoted_status');
   const state = quote.get('state');
   const status = useAppSelector((state) =>
     quotedStatusId ? state.statuses.get(quotedStatusId) : undefined,
   );
 
-  let quoteError: React.ReactNode | null = null;
+  let quoteError: React.ReactNode = null;
 
   if (state === 'deleted') {
     quoteError = (
@@ -78,14 +120,28 @@ export const QuotedStatus: React.FC<{ quote: QuoteMap }> = ({ quote }) => {
     return <QuoteWrapper isError>{quoteError}</QuoteWrapper>;
   }
 
+  if (variant === 'link' && status) {
+    return <QuoteLink status={status} />;
+  }
+
+  const childQuote = status?.get('quote') as QuoteMap | undefined;
+  const canRenderChildQuote =
+    childQuote && nestingLevel <= MAX_QUOTE_POSTS_NESTING_LEVEL;
+
   return (
     <QuoteWrapper>
-      <StatusContainer
-        // @ts-expect-error Status isn't typed yet
-        isQuotedPost
-        id={quotedStatusId}
-        avatarSize={40}
-      />
+      {/* @ts-expect-error Status is not yet typed */}
+      <StatusContainer isQuotedPost id={quotedStatusId} avatarSize={40}>
+        {canRenderChildQuote && (
+          <QuotedStatus
+            quote={childQuote}
+            variant={
+              nestingLevel === MAX_QUOTE_POSTS_NESTING_LEVEL ? 'link' : 'full'
+            }
+            nestingLevel={nestingLevel + 1}
+          />
+        )}
+      </StatusContainer>
     </QuoteWrapper>
   );
 };

app/javascript/mastodon/locales/en.json

@@ -868,6 +868,7 @@
   "status.quote_error.rejected": "This post cannot be displayed as the original author does not allow it to be quoted.",
   "status.quote_error.removed": "This post was removed by its author.",
   "status.quote_error.unauthorized": "This post cannot be displayed as you are not authorized to view it.",
+  "status.quote_post_author": "Post by {name}",
   "status.read_more": "Read more",
   "status.reblog": "Boost",
   "status.reblog_private": "Boost with original visibility",

app/javascript/material-icons/400-24px/article-fill.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="24" viewBox="0 -960 960 960" width="24"><path d="M200-120q-33 0-56.5-23.5T120-200v-560q0-33 23.5-56.5T200-840h560q33 0 56.5 23.5T840-760v560q0 33-23.5 56.5T760-120H200Zm80-160h280v-80H280v80Zm0-160h400v-80H280v80Zm0-160h400v-80H280v80Z"/></svg>

app/javascript/material-icons/400-24px/article.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="24" viewBox="0 -960 960 960" width="24"><path d="M280-280h280v-80H280v80Zm0-160h400v-80H280v80Zm0-160h400v-80H280v80Zm-80 480q-33 0-56.5-23.5T120-200v-560q0-33 23.5-56.5T200-840h560q33 0 56.5 23.5T840-760v560q0 33-23.5 56.5T760-120H200Zm0-80h560v-560H200v560Zm0-560v560-560Z"/></svg>

app/javascript/material-icons/README.md

@@ -1 +1,12 @@
-Files in this directory are Material Symbols icons fetched using the `icons:download` task.
+Files in this directory are Material Symbols icons fetched using the `icons:download` rake task (see `/lib/tasks/icons.rake`).
+
+To add another icon, follow these steps:
+
+- Determine the name of the Material Symbols icon you want to download.
+  You can find a searchable overview of all icons on [https://fonts.google.com/icons].
+  Click on the icon you want to use and find the icon name towards the bottom of the slide-out panel (it'll be something like `icon_name`)
+- Import the icon in your React component using the following format:
+  `import IconName from '@/material-icons/400-24px/icon_name.svg?react';`
+- Run `RAILS_ENV=development rails icons:download` to download any newly imported icons.
+
+The import should now work and the icon should appear when passed to the `<Icon icon={IconName} /> component

app/javascript/styles/mastodon/components.scss

@@ -1880,11 +1880,15 @@ body > [data-popper-placement] {
 .status__quote {
   position: relative;
   margin-block-start: 16px;
-  margin-inline-start: 56px;
+  margin-inline-start: 36px;
   border-radius: 8px;
   color: var(--nested-card-text);
   background: var(--nested-card-background);
   border: var(--nested-card-border);
+
+  @media screen and (min-width: $mobile-breakpoint) {
+    margin-inline-start: 56px;
+  }
 }
 
 .status__quote--error {
@@ -1895,10 +1899,42 @@ body > [data-popper-placement] {
   font-size: 15px;
 }
 
+.status__quote-author-button {
+  position: relative;
+  overflow: hidden;
+  display: inline-flex;
+  width: auto;
+  margin-block-start: 10px;
+  padding: 5px 12px;
+  align-items: center;
+  gap: 6px;
+  font-family: inherit;
+  font-size: 14px;
+  font-weight: 700;
+  line-height: normal;
+  letter-spacing: 0;
+  text-decoration: none;
+  color: $highlight-text-color;
+  background: var(--nested-card-background);
+  border: var(--nested-card-border);
+  border-radius: 4px;
+
+  &:active,
+  &:focus,
+  &:hover {
+    border-color: lighten($highlight-text-color, 4%);
+    color: lighten($highlight-text-color, 4%);
+  }
+
+  &:focus-visible {
+    outline: $ui-button-icon-focus-outline;
+  }
+}
+
 .status__quote-icon {
   position: absolute;
   inset-block-start: 18px;
-  inset-inline-start: -50px;
+  inset-inline-start: -40px;
   display: block;
   width: 26px;
   height: 26px;
@@ -1910,6 +1946,10 @@ body > [data-popper-placement] {
     inset-block-start: 50%;
     transform: translateY(-50%);
   }
+
+  @media screen and (min-width: $mobile-breakpoint) {
+    inset-inline-start: -50px;
+  }
 }
 
 .detailed-status__link {