Change media reordering design in the compose form in web UI (#32093)

app/javascript/mastodon/features/compose/components/upload.tsx

@@ -0,0 +1,130 @@
+import { useCallback } from 'react';
+
+import { FormattedMessage } from 'react-intl';
+
+import classNames from 'classnames';
+
+import { useSortable } from '@dnd-kit/sortable';
+import { CSS } from '@dnd-kit/utilities';
+
+import CloseIcon from '@/material-icons/400-20px/close.svg?react';
+import EditIcon from '@/material-icons/400-24px/edit.svg?react';
+import WarningIcon from '@/material-icons/400-24px/warning.svg?react';
+import {
+  undoUploadCompose,
+  initMediaEditModal,
+} from 'mastodon/actions/compose';
+import { Blurhash } from 'mastodon/components/blurhash';
+import { Icon } from 'mastodon/components/icon';
+import type { MediaAttachment } from 'mastodon/models/media_attachment';
+import { useAppDispatch, useAppSelector } from 'mastodon/store';
+
+export const Upload: React.FC<{
+  id: string;
+  dragging?: boolean;
+  overlay?: boolean;
+  tall?: boolean;
+  wide?: boolean;
+}> = ({ id, dragging, overlay, tall, wide }) => {
+  const dispatch = useAppDispatch();
+  const media = useAppSelector(
+    (state) =>
+      state.compose // eslint-disable-line @typescript-eslint/no-unsafe-call
+        .get('media_attachments') // eslint-disable-line @typescript-eslint/no-unsafe-member-access
+        .find((item: MediaAttachment) => item.get('id') === id) as  // eslint-disable-line @typescript-eslint/no-unsafe-member-access
+        | MediaAttachment
+        | undefined,
+  );
+  const sensitive = useAppSelector(
+    (state) => state.compose.get('spoiler') as boolean, // eslint-disable-line @typescript-eslint/no-unsafe-call, @typescript-eslint/no-unsafe-member-access
+  );
+
+  const handleUndoClick = useCallback(() => {
+    dispatch(undoUploadCompose(id));
+  }, [dispatch, id]);
+
+  const handleFocalPointClick = useCallback(() => {
+    dispatch(initMediaEditModal(id));
+  }, [dispatch, id]);
+
+  const { attributes, listeners, setNodeRef, transform, transition } =
+    useSortable({ id });
+
+  if (!media) {
+    return null;
+  }
+
+  const focusX = media.getIn(['meta', 'focus', 'x']) as number;
+  const focusY = media.getIn(['meta', 'focus', 'y']) as number;
+  const x = (focusX / 2 + 0.5) * 100;
+  const y = (focusY / -2 + 0.5) * 100;
+  const missingDescription =
+    ((media.get('description') as string | undefined) ?? '').length === 0;
+
+  const style = {
+    transform: CSS.Transform.toString(transform),
+    transition,
+  };
+
+  return (
+    <div
+      className={classNames('compose-form__upload media-gallery__item', {
+        dragging,
+        overlay,
+        'media-gallery__item--tall': tall,
+        'media-gallery__item--wide': wide,
+      })}
+      ref={setNodeRef}
+      style={style}
+      {...attributes}
+      {...listeners}
+    >
+      <div
+        className='compose-form__upload__thumbnail'
+        style={{
+          backgroundImage: !sensitive
+            ? `url(${media.get('preview_url') as string})`
+            : undefined,
+          backgroundPosition: `${x}% ${y}%`,
+        }}
+      >
+        {sensitive && (
+          <Blurhash
+            hash={media.get('blurhash') as string}
+            className='compose-form__upload__preview'
+          />
+        )}
+
+        <div className='compose-form__upload__actions'>
+          <button
+            type='button'
+            className='icon-button compose-form__upload__delete'
+            onClick={handleUndoClick}
+          >
+            <Icon id='close' icon={CloseIcon} />
+          </button>
+          <button
+            type='button'
+            className='icon-button'
+            onClick={handleFocalPointClick}
+          >
+            <Icon id='edit' icon={EditIcon} />{' '}
+            <FormattedMessage id='upload_form.edit' defaultMessage='Edit' />
+          </button>
+        </div>
+
+        <div className='compose-form__upload__warning'>
+          <button
+            type='button'
+            className={classNames('icon-button', {
+              active: missingDescription,
+            })}
+            onClick={handleFocalPointClick}
+          >
+            {missingDescription && <Icon id='warning' icon={WarningIcon} />} ALT
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+};