PendingStatus: display placeholder attachments

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

app/soapbox/features/placeholder/components/placeholder_media_gallery.js

@@ -0,0 +1,96 @@
+import React from 'react';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import { Map as ImmutableMap } from 'immutable';
+import PropTypes from 'prop-types';
+
+export default class PlaceholderMediaGallery extends React.Component {
+
+  static propTypes = {
+    media: ImmutablePropTypes.map.isRequired,
+    defaultWidth: PropTypes.number,
+  }
+
+  state = {
+    width: this.props.defaultWidth,
+  };
+
+  handleRef = (node) => {
+    if (node) {
+      this.setState({
+        width: node.offsetWidth,
+      });
+    }
+  }
+
+  getSizeData = size => {
+    const { defaultWidth } = this.props;
+    const width = this.state.width || defaultWidth;
+
+    const style = {};
+    let itemsDimensions = [];
+
+    if (size === 1) {
+      style.height = width * 9 / 16;
+
+      itemsDimensions = [
+        { w: '100%', h: '100%' },
+      ];
+    } else if (size === 2) {
+      style.height = width / 2;
+
+      itemsDimensions = [
+        { w: '50%', h: '100%', r: '2px' },
+        { w: '50%', h: '100%', l: '2px' },
+      ];
+    } else if (size === 3) {
+      style.height = width;
+
+      itemsDimensions = [
+        { w: '50%', h: '50%', b: '2px', r: '2px' },
+        { w: '50%', h: '50%', b: '2px', l: '2px' },
+        { w: '100%', h: '50%', t: '2px' },
+      ];
+    } else if (size >= 4) {
+      style.height = width;
+
+      itemsDimensions = [
+        { w: '50%', h: '50%', b: '2px', r: '2px' },
+        { w: '50%', h: '50%', b: '2px', l: '2px' },
+        { w: '50%', h: '50%', t: '2px', r: '2px' },
+        { w: '50%', h: '50%', t: '2px', l: '2px' },
+      ];
+    }
+
+    return ImmutableMap({
+      style,
+      itemsDimensions,
+      size,
+      width,
+    });
+  }
+
+  renderItem = (dimensions, i) => {
+    const width = dimensions.w;
+    const height = dimensions.h;
+    const top = dimensions.t || 'auto';
+    const right = dimensions.r || 'auto';
+    const bottom = dimensions.b || 'auto';
+    const left = dimensions.l || 'auto';
+    const float = dimensions.float || 'left';
+    const position = dimensions.pos || 'relative';
+
+    return <div key={i} className='media-gallery__item' style={{ position, float, left, top, right, bottom, height, width }} />;
+  }
+
+  render() {
+    const { media } = this.props;
+    const sizeData = this.getSizeData(media.size);
+
+    return (
+      <div className='media-gallery media-gallery--placeholder' style={sizeData.get('style')} ref={this.handleRef}>
+        {media.take(4).map((_, i) => this.renderItem(sizeData.get('itemsDimensions')[i], i))}
+      </div>
+    );
+  }
+
+}

app/soapbox/features/placeholder/components/placeholder_status_content.js

@@ -13,7 +13,7 @@ export default class PlaceholderStatusContent extends React.Component {
     const { maxLength, minLength } = this.props;
     const length = randomIntFromInterval(maxLength, minLength);
 
-    return(
+    return (
       <div className='status__content status__content--placeholder' tabIndex='0' key='content'>
         {generateText(length)}
       </div>

app/soapbox/features/ui/components/pending_status.js

@@ -10,9 +10,9 @@ import { Link, NavLink } from 'react-router-dom';
 import { getDomain } from 'soapbox/utils/accounts';
 import Avatar from 'soapbox/components/avatar';
 import DisplayName from 'soapbox/components/display_name';
-import AttachmentThumbs from 'soapbox/components/attachment_thumbs';
 import PollPreview from './poll_preview';
 import PlaceholderCard from 'soapbox/features/placeholder/components/placeholder_card';
+import PlaceholderMediaGallery from '../../placeholder/components/placeholder_media_gallery';
 
 const shouldHaveCard = pendingStatus => {
   return Boolean(pendingStatus.get('content').match(/https?:\/\/\S*/));
@@ -34,8 +34,7 @@ class PendingStatus extends ImmutablePureComponent {
 
     if (status.get('media_attachments') && !status.get('media_attachments').isEmpty()) {
       return (
-        <AttachmentThumbs
+        <PlaceholderMediaGallery
-          compact
           media={status.get('media_attachments')}
         />
       );

app/soapbox/features/ui/util/pending_status_builder.js

@@ -22,7 +22,7 @@ export const buildStatus = (state, pendingStatus, idempotencyKey) => {
     in_reply_to_account_id: null,
     in_reply_to_id: pendingStatus.get('in_reply_to_id'),
     language: null,
-    media_attachments: [], // TODO: render pending thumbs
+    media_attachments: pendingStatus.get('media_ids').map(id => ({ id })),
     mentions: [],
     muted: false,
     pinned: false,

app/styles/placeholder.scss

@@ -1,7 +1,8 @@
 .placeholder-status,
 .placeholder-hashtag,
 .notification--placeholder,
-.status-card--placeholder {
+.status-card--placeholder,
+.media-gallery--placeholder {
   position: relative;
 
   &::before {
@@ -120,3 +121,11 @@
     opacity: 0.1;
   }
 }
+
+.media-gallery.media-gallery--placeholder {
+  background: none;
+
+  .media-gallery__item {
+    background-color: var(--brand-color--faint);
+  }
+}