1 files changed, 158 insertions, 0 deletions
diff --git a/app/javascript/glitch/components/status/gallery/item.js b/app/javascript/glitch/components/status/gallery/item.js
new file mode 100644
index 000000000..7fcc14377
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+++ b/app/javascript/glitch/components/status/gallery/item.js
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+//  Package imports  //
+import React from 'react';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import PropTypes from 'prop-types';
+
+//  Mastodon imports  //
+import { isIOS } from '../../../../mastodon/is_mobile';
+
+export default class StatusGalleryItem extends React.PureComponent {
+
+  static propTypes = {
+    attachment: ImmutablePropTypes.map.isRequired,
+    index: PropTypes.number.isRequired,
+    size: PropTypes.number.isRequired,
+    letterbox: PropTypes.bool,
+    onClick: PropTypes.func.isRequired,
+    autoPlayGif: PropTypes.bool.isRequired,
+  };
+
+  handleMouseEnter = (e) => {
+    if (this.hoverToPlay()) {
+      e.target.play();
+    }
+  }
+
+  handleMouseLeave = (e) => {
+    if (this.hoverToPlay()) {
+      e.target.pause();
+      e.target.currentTime = 0;
+    }
+  }
+
+  hoverToPlay () {
+    const { attachment, autoPlayGif } = this.props;
+    return !autoPlayGif && attachment.get('type') === 'gifv';
+  }
+
+  handleClick = (e) => {
+    const { index, onClick } = this.props;
+
+    if (e.button === 0) {
+      e.preventDefault();
+      onClick(index);
+    }
+
+    e.stopPropagation();
+  }
+
+  render () {
+    const { attachment, index, size, letterbox } = this.props;
+
+    let width  = 50;
+    let height = 100;
+    let top    = 'auto';
+    let left   = 'auto';
+    let bottom = 'auto';
+    let right  = 'auto';
+
+    if (size === 1) {
+      width = 100;
+    }
+
+    if (size === 4 || (size === 3 && index > 0)) {
+      height = 50;
+    }
+
+    if (size === 2) {
+      if (index === 0) {
+        right = '2px';
+      } else {
+        left = '2px';
+      }
+    } else if (size === 3) {
+      if (index === 0) {
+        right = '2px';
+      } else if (index > 0) {
+        left = '2px';
+      }
+
+      if (index === 1) {
+        bottom = '2px';
+      } else if (index > 1) {
+        top = '2px';
+      }
+    } else if (size === 4) {
+      if (index === 0 || index === 2) {
+        right = '2px';
+      }
+
+      if (index === 1 || index === 3) {
+        left = '2px';
+      }
+
+      if (index < 2) {
+        bottom = '2px';
+      } else {
+        top = '2px';
+      }
+    }
+
+    let thumbnail = '';
+
+    if (attachment.get('type') === 'image') {
+      const previewUrl = attachment.get('preview_url');
+      const previewWidth = attachment.getIn(['meta', 'small', 'width']);
+
+      const originalUrl = attachment.get('url');
+      const originalWidth = attachment.getIn(['meta', 'original', 'width']);
+
+      const srcSet = `${originalUrl} ${originalWidth}w, ${previewUrl} ${previewWidth}w`;
+      const sizes = `(min-width: 1025px) ${320 * (width / 100)}px, ${width}vw`;
+
+      thumbnail = (
+        <a
+          className='media-gallery__item-thumbnail'
+          href={attachment.get('remote_url') || originalUrl}
+          onClick={this.handleClick}
+          target='_blank'
+        >
+          <img
+            className={letterbox ? 'letterbox' : ''}
+            src={previewUrl} srcSet={srcSet}
+            sizes={sizes}
+            alt={attachment.get('description')}
+            title={attachment.get('description')}
+          />
+        </a>
+      );
+    } else if (attachment.get('type') === 'gifv') {
+      const autoPlay = !isIOS() && this.props.autoPlayGif;
+
+      thumbnail = (
+        <div className={`media-gallery__gifv ${autoPlay ? 'autoplay' : ''}`}>
+          <video
+            className={`media-gallery__item-gifv-thumbnail${letterbox ? ' letterbox' : ''}`}
+            role='application'
+            src={attachment.get('url')}
+            onClick={this.handleClick}
+            onMouseEnter={this.handleMouseEnter}
+            onMouseLeave={this.handleMouseLeave}
+            autoPlay={autoPlay}
+            loop
+            muted
+          />
+
+          <span className='media-gallery__gifv__label'>GIF</span>
+        </div>
+      );
+    }
+
+    return (
+      <div className='media-gallery__item' key={attachment.get('id')} style={{ left: left, top: top, right: right, bottom: bottom, width: `${width}%`, height: `${height}%` }}>
+        {thumbnail}
+      </div>
+    );
+  }
+
+}