Change media modals look in web UI (#15217)

- Change overlay background to match color of viewed image
- Add interactive reply/boost/favourite buttons to footer of modal
- Change ugly "View context" link to button among the action bar

app/javascript/mastodon/features/ui/components/media_modal.js

@@ -4,13 +4,14 @@ import ImmutablePropTypes from 'react-immutable-proptypes';
 import PropTypes from 'prop-types';
 import Video from 'mastodon/features/video';
 import classNames from 'classnames';
-import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
+import { defineMessages, injectIntl } from 'react-intl';
 import IconButton from 'mastodon/components/icon_button';
 import ImmutablePureComponent from 'react-immutable-pure-component';
 import ImageLoader from './image_loader';
 import Icon from 'mastodon/components/icon';
 import GIFV from 'mastodon/components/gifv';
 import { disableSwiping } from 'mastodon/initial_state';
+import Footer from 'mastodon/features/picture_in_picture/components/footer';
 
 const messages = defineMessages({
   close: { id: 'lightbox.close', defaultMessage: 'Close' },
@@ -20,15 +21,121 @@ const messages = defineMessages({
 
 export const previewState = 'previewMediaModal';
 
+const digitCharacters = [
+  '0',
+  '1',
+  '2',
+  '3',
+  '4',
+  '5',
+  '6',
+  '7',
+  '8',
+  '9',
+  'A',
+  'B',
+  'C',
+  'D',
+  'E',
+  'F',
+  'G',
+  'H',
+  'I',
+  'J',
+  'K',
+  'L',
+  'M',
+  'N',
+  'O',
+  'P',
+  'Q',
+  'R',
+  'S',
+  'T',
+  'U',
+  'V',
+  'W',
+  'X',
+  'Y',
+  'Z',
+  'a',
+  'b',
+  'c',
+  'd',
+  'e',
+  'f',
+  'g',
+  'h',
+  'i',
+  'j',
+  'k',
+  'l',
+  'm',
+  'n',
+  'o',
+  'p',
+  'q',
+  'r',
+  's',
+  't',
+  'u',
+  'v',
+  'w',
+  'x',
+  'y',
+  'z',
+  '#',
+  '$',
+  '%',
+  '*',
+  '+',
+  ',',
+  '-',
+  '.',
+  ':',
+  ';',
+  '=',
+  '?',
+  '@',
+  '[',
+  ']',
+  '^',
+  '_',
+  '{',
+  '|',
+  '}',
+  '~',
+];
+
+const decode83 = (str) => {
+  let value = 0;
+  let c, digit;
+
+  for (let i = 0; i < str.length; i++) {
+    c = str[i];
+    digit = digitCharacters.indexOf(c);
+    value = value * 83 + digit;
+  }
+
+  return value;
+};
+
+const decodeRGB = int => ({
+  r: Math.max(0, (int >> 16)),
+  g: Math.max(0, (int >> 8) & 255),
+  b: Math.max(0, (int & 255)),
+});
+
 export default @injectIntl
 class MediaModal extends ImmutablePureComponent {
 
   static propTypes = {
     media: ImmutablePropTypes.list.isRequired,
-    status: ImmutablePropTypes.map,
+    statusId: PropTypes.string,
     index: PropTypes.number.isRequired,
     onClose: PropTypes.func.isRequired,
     intl: PropTypes.object.isRequired,
+    onChangeBackgroundColor: PropTypes.func.isRequired,
   };
 
   static contextTypes = {
@@ -67,6 +174,7 @@ class MediaModal extends ImmutablePureComponent {
 
   handleChangeIndex = (e) => {
     const index = Number(e.currentTarget.getAttribute('data-index'));
+
     this.setState({
       index: index % this.props.media.size,
       zoomButtonHidden: true,
@@ -100,6 +208,22 @@ class MediaModal extends ImmutablePureComponent {
         this.props.onClose();
       });
     }
+
+    this._sendBackgroundColor();
+  }
+
+  componentDidUpdate (prevProps, prevState) {
+    if (prevState.index !== this.state.index) {
+      this._sendBackgroundColor();
+    }
+  }
+
+  _sendBackgroundColor () {
+    const { media, onChangeBackgroundColor } = this.props;
+    const index = this.getIndex();
+    const backgroundColor = decodeRGB(decode83(media.getIn([index, 'blurhash']).slice(2, 6)));
+
+    onChangeBackgroundColor(backgroundColor);
   }
 
   componentWillUnmount () {
@@ -112,6 +236,8 @@ class MediaModal extends ImmutablePureComponent {
         this.context.router.history.goBack();
       }
     }
+
+    this.props.onChangeBackgroundColor(null);
   }
 
   getIndex () {
@@ -127,30 +253,19 @@ class MediaModal extends ImmutablePureComponent {
   handleStatusClick = e => {
     if (e.button === 0 && !(e.ctrlKey || e.metaKey)) {
       e.preventDefault();
-      this.context.router.history.push(`/statuses/${this.props.status.get('id')}`);
+      this.context.router.history.push(`/statuses/${this.props.statusId}`);
     }
   }
 
   render () {
-    const { media, status, intl, onClose } = this.props;
+    const { media, statusId, intl, onClose } = this.props;
     const { navigationHidden } = this.state;
 
     const index = this.getIndex();
-    let pagination = [];
 
     const leftNav  = media.size > 1 && <button tabIndex='0' className='media-modal__nav media-modal__nav--left' onClick={this.handlePrevClick} aria-label={intl.formatMessage(messages.previous)}><Icon id='chevron-left' fixedWidth /></button>;
     const rightNav = media.size > 1 && <button tabIndex='0' className='media-modal__nav  media-modal__nav--right' onClick={this.handleNextClick} aria-label={intl.formatMessage(messages.next)}><Icon id='chevron-right' fixedWidth /></button>;
 
-    if (media.size > 1) {
-      pagination = media.map((item, i) => {
-        const classes = ['media-modal__button'];
-        if (i === index) {
-          classes.push('media-modal__button--active');
-        }
-        return (<li className='media-modal__page-dot' key={i}><button tabIndex='0' className={classes.join(' ')} onClick={this.handleChangeIndex} data-index={i}>{i + 1}</button></li>);
-      });
-    }
-
     const content = media.map((image) => {
       const width  = image.getIn(['meta', 'original', 'width']) || null;
       const height = image.getIn(['meta', 'original', 'height']) || null;
@@ -218,13 +333,19 @@ class MediaModal extends ImmutablePureComponent {
       'media-modal__navigation--hidden': navigationHidden,
     });
 
+    let pagination;
+
+    if (media.size > 1) {
+      pagination = media.map((item, i) => (
+        <button key={i} className={classNames('media-modal__page-dot', { active: i === index })} data-index={i} onClick={this.handleChangeIndex}>
+          {i + 1}
+        </button>
+      ));
+    }
+
     return (
       <div className='modal-root__modal media-modal'>
-        <div
-          className='media-modal__closer'
-          role='presentation'
-          onClick={onClose}
-        >
+        <div className='media-modal__closer' role='presentation' onClick={onClose} >
           <ReactSwipeableViews
             style={swipeableViewsStyle}
             containerStyle={containerStyle}
@@ -243,15 +364,10 @@ class MediaModal extends ImmutablePureComponent {
           {leftNav}
           {rightNav}
 
-          {status && (
-            <div className={classNames('media-modal__meta', { 'media-modal__meta--shifted': media.size > 1 })}>
-              <a href={status.get('url')} onClick={this.handleStatusClick}><Icon id='comments' /> <FormattedMessage id='lightbox.view_context' defaultMessage='View context' /></a>
-            </div>
-          )}
-
-          <ul className='media-modal__pagination'>
-            {pagination}
-          </ul>
+          <div className='media-modal__overlay'>
+            {pagination && <ul className='media-modal__pagination'>{pagination}</ul>}
+            {statusId && <Footer statusId={statusId} withOpenButton onClose={onClose} />}
+          </div>
         </div>
       </div>
     );