Refactor spoiler button logic into separate SpoilerButton component (#34257)

app/javascript/mastodon/components/media_gallery.jsx

@@ -12,6 +12,7 @@ import { debounce } from 'lodash';
 
 import { AltTextBadge } from 'mastodon/components/alt_text_badge';
 import { Blurhash } from 'mastodon/components/blurhash';
+import { SpoilerButton } from 'mastodon/components/spoiler_button';
 import { formatTime } from 'mastodon/features/video';
 
 import { autoPlayGif, displayMedia, useBlurhash } from '../initial_state';
@@ -299,7 +300,7 @@ class MediaGallery extends PureComponent {
     const { visible } = this.state;
     const width = this.state.width || defaultWidth;
 
-    let children, spoilerButton;
+    let children;
 
     const style = {};
 
@@ -318,35 +319,11 @@ class MediaGallery extends PureComponent {
       children = media.map((attachment, i) => <Item key={attachment.get('id')} autoplay={autoplay} onClick={this.handleClick} attachment={attachment} index={i} lang={lang} size={size} displayWidth={width} visible={visible || uncached} />);
     }
 
-    if (uncached) {
-      spoilerButton = (
-        <button type='button' disabled className='spoiler-button__overlay'>
-          <span className='spoiler-button__overlay__label'>
-            <FormattedMessage id='status.uncached_media_warning' defaultMessage='Preview not available' />
-            <span className='spoiler-button__overlay__action'><FormattedMessage id='status.media.open' defaultMessage='Click to open' /></span>
-          </span>
-        </button>
-      );
-    } else if (!visible) {
-      spoilerButton = (
-        <button type='button' onClick={this.handleOpen} className='spoiler-button__overlay'>
-          <span className='spoiler-button__overlay__label'>
-            {sensitive ? <FormattedMessage id='status.sensitive_warning' defaultMessage='Sensitive content' /> : <FormattedMessage id='status.media_hidden' defaultMessage='Media hidden' />}
-            <span className='spoiler-button__overlay__action'><FormattedMessage id='status.media.show' defaultMessage='Click to show' /></span>
-          </span>
-        </button>
-      );
-    }
-
     return (
       <div className={`media-gallery media-gallery--layout-${size}`} style={style} ref={this.handleRef}>
         {children}
 
-        {(!visible || uncached) && (
-          <div className={classNames('spoiler-button', { 'spoiler-button--click-thru': uncached })}>
-            {spoilerButton}
-          </div>
-        )}
+        {(!visible || uncached) && <SpoilerButton uncached={uncached} sensitive={sensitive} onClick={this.handleOpen} />}
 
         {(visible && !uncached) && (
           <div className='media-gallery__actions'>

app/javascript/mastodon/components/spoiler_button.tsx

@@ -0,0 +1,73 @@
+import { FormattedMessage } from 'react-intl';
+
+import classNames from 'classnames';
+
+interface Props {
+  hidden?: boolean;
+  sensitive: boolean;
+  uncached?: boolean;
+  onClick: React.MouseEventHandler<HTMLButtonElement>;
+}
+
+export const SpoilerButton: React.FC<Props> = ({
+  hidden = false,
+  sensitive,
+  uncached = false,
+  onClick,
+}) => {
+  let warning;
+  let action;
+
+  if (uncached) {
+    warning = (
+      <FormattedMessage
+        id='status.uncached_media_warning'
+        defaultMessage='Preview not available'
+      />
+    );
+    action = (
+      <FormattedMessage id='status.media.open' defaultMessage='Click to open' />
+    );
+  } else if (sensitive) {
+    warning = (
+      <FormattedMessage
+        id='status.sensitive_warning'
+        defaultMessage='Sensitive content'
+      />
+    );
+    action = (
+      <FormattedMessage id='status.media.show' defaultMessage='Click to show' />
+    );
+  } else {
+    warning = (
+      <FormattedMessage
+        id='status.media_hidden'
+        defaultMessage='Media hidden'
+      />
+    );
+    action = (
+      <FormattedMessage id='status.media.show' defaultMessage='Click to show' />
+    );
+  }
+
+  return (
+    <div
+      className={classNames('spoiler-button', {
+        'spoiler-button--hidden': hidden,
+        'spoiler-button--click-thru': uncached,
+      })}
+    >
+      <button
+        type='button'
+        className='spoiler-button__overlay'
+        onClick={onClick}
+        disabled={uncached}
+      >
+        <span className='spoiler-button__overlay__label'>
+          {warning}
+          <span className='spoiler-button__overlay__action'>{action}</span>
+        </span>
+      </button>
+    </div>
+  );
+};

app/javascript/mastodon/features/audio/index.jsx

@@ -1,7 +1,7 @@
 import PropTypes from 'prop-types';
 import { PureComponent } from 'react';
 
-import { defineMessages, FormattedMessage, injectIntl } from 'react-intl';
+import { defineMessages, injectIntl } from 'react-intl';
 
 import classNames from 'classnames';
 
@@ -16,6 +16,7 @@ import VisibilityOffIcon from '@/material-icons/400-24px/visibility_off.svg?reac
 import VolumeOffIcon from '@/material-icons/400-24px/volume_off-fill.svg?react';
 import VolumeUpIcon from '@/material-icons/400-24px/volume_up-fill.svg?react';
 import { Icon }  from 'mastodon/components/icon';
+import { SpoilerButton } from 'mastodon/components/spoiler_button';
 import { formatTime, getPointerPosition, fileNameFromURL } from 'mastodon/features/video';
 
 import { Blurhash } from '../../components/blurhash';
@@ -476,14 +477,6 @@ class Audio extends PureComponent {
     const progress = Math.min((currentTime / duration) * 100, 100);
     const muted = this.state.muted || volume === 0;
 
-    let warning;
-
-    if (sensitive) {
-      warning = <FormattedMessage id='status.sensitive_warning' defaultMessage='Sensitive content' />;
-    } else {
-      warning = <FormattedMessage id='status.media_hidden' defaultMessage='Media hidden' />;
-    }
-
     return (
       <div className={classNames('audio-player', { editable, inactive: !revealed })} ref={this.setPlayerRef} style={{ backgroundColor: this._getBackgroundColor(), color: this._getForegroundColor(), aspectRatio: '16 / 9' }} onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave} tabIndex={0} onKeyDown={this.handleKeyDown}>
 
@@ -521,14 +514,7 @@ class Audio extends PureComponent {
           lang={lang}
         />
 
-        <div className={classNames('spoiler-button', { 'spoiler-button--hidden': revealed || editable })}>
-          <button type='button' className='spoiler-button__overlay' onClick={this.toggleReveal}>
-            <span className='spoiler-button__overlay__label'>
-              {warning}
-              <span className='spoiler-button__overlay__action'><FormattedMessage id='status.media.show' defaultMessage='Click to show' /></span>
-            </span>
-          </button>
-        </div>
+        <SpoilerButton hidden={revealed || editable} sensitive={sensitive} onClick={this.toggleReveal} />
 
         {(revealed || editable) && <img
           src={this.props.poster}

app/javascript/mastodon/features/video/index.jsx

@@ -1,7 +1,7 @@
 import PropTypes from 'prop-types';
 import { PureComponent } from 'react';
 
-import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
+import { defineMessages, injectIntl } from 'react-intl';
 
 import classNames from 'classnames';
 
@@ -19,6 +19,7 @@ import VolumeOffIcon from '@/material-icons/400-24px/volume_off-fill.svg?react';
 import VolumeUpIcon from '@/material-icons/400-24px/volume_up-fill.svg?react';
 import { Blurhash } from 'mastodon/components/blurhash';
 import { Icon }  from 'mastodon/components/icon';
+import { SpoilerButton } from 'mastodon/components/spoiler_button';
 import { playerSettings } from 'mastodon/settings';
 
 import { displayMedia, useBlurhash } from '../../initial_state';
@@ -549,14 +550,6 @@ class Video extends PureComponent {
       preload = 'none';
     }
 
-    let warning;
-
-    if (sensitive) {
-      warning = <FormattedMessage id='status.sensitive_warning' defaultMessage='Sensitive content' />;
-    } else {
-      warning = <FormattedMessage id='status.media_hidden' defaultMessage='Media hidden' />;
-    }
-
     // The outer wrapper is necessary to avoid reflowing the layout when going into full screen
     return (
       <div style={{ aspectRatio }}>
@@ -599,14 +592,7 @@ class Video extends PureComponent {
             style={{ width: '100%' }}
           />}
 
-          <div className={classNames('spoiler-button', { 'spoiler-button--hidden': revealed || editable })}>
-            <button type='button' className='spoiler-button__overlay' onClick={this.toggleReveal}>
-              <span className='spoiler-button__overlay__label'>
-                {warning}
-                <span className='spoiler-button__overlay__action'><FormattedMessage id='status.media.show' defaultMessage='Click to show' /></span>
-              </span>
-            </button>
-          </div>
+          <SpoilerButton hidden={revealed || editable} sensitive={sensitive} onClick={this.toggleReveal} />
 
           <div className={classNames('video-player__controls', { active: paused || hovered })}>
             <div className='video-player__seek' onMouseDown={this.handleMouseDown} ref={this.setSeekRef}>