planning

node_modules/decap-cms-widget-file/src/FilePreview.js

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+import React from 'react';
+import PropTypes from 'prop-types';
+import styled from '@emotion/styled';
+import { List } from 'immutable';
+import { WidgetPreviewContainer } from 'decap-cms-ui-default';
+
+const FileLink = styled(({ href, path }) => (
+  <a href={href} rel="noopener noreferrer" target="_blank">
+    {path}
+  </a>
+))`
+  display: block;
+`;
+
+function FileLinkList({ values, getAsset, field }) {
+  return (
+    <div>
+      {values.map(value => (
+        <FileLink key={value} path={value} href={getAsset(value, field)} />
+      ))}
+    </div>
+  );
+}
+
+function FileContent(props) {
+  const { value, getAsset, field } = props;
+  if (Array.isArray(value) || List.isList(value)) {
+    return <FileLinkList values={value} getAsset={getAsset} field={field} />;
+  }
+  return <FileLink key={value} path={value} href={getAsset(value, field)} />;
+}
+
+function FilePreview(props) {
+  return (
+    <WidgetPreviewContainer>
+      {props.value ? <FileContent {...props} /> : null}
+    </WidgetPreviewContainer>
+  );
+}
+
+FilePreview.propTypes = {
+  getAsset: PropTypes.func.isRequired,
+  value: PropTypes.node,
+};
+
+export default FilePreview;