Add media editing modal (#11563)

Move media description input to a modal and unite that modal with
the focal point modal. Add a hint about choosing focal points, as
well as a preview of a 16:9 thumbnail. Enable the user to watch
the video next to the media description input.

Fix #8320
Fix #6713

app/javascript/mastodon/features/compose/components/upload.js

@@ -4,16 +4,11 @@ import PropTypes from 'prop-types';
 import Motion from '../../ui/util/optional_motion';
 import spring from 'react-motion/lib/spring';
 import ImmutablePureComponent from 'react-immutable-pure-component';
-import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
+import { FormattedMessage } from 'react-intl';
 import classNames from 'classnames';
 import Icon from 'mastodon/components/icon';
 
-const messages = defineMessages({
-  description: { id: 'upload_form.description', defaultMessage: 'Describe for the visually impaired' },
-});
-
-export default @injectIntl
-class Upload extends ImmutablePureComponent {
+export default class Upload extends ImmutablePureComponent {
 
   static contextTypes = {
     router: PropTypes.object,
@@ -21,30 +16,10 @@ class Upload extends ImmutablePureComponent {
 
   static propTypes = {
     media: ImmutablePropTypes.map.isRequired,
-    intl: PropTypes.object.isRequired,
     onUndo: PropTypes.func.isRequired,
-    onDescriptionChange: PropTypes.func.isRequired,
     onOpenFocalPoint: PropTypes.func.isRequired,
-    onSubmit: PropTypes.func.isRequired,
   };
 
-  state = {
-    hovered: false,
-    focused: false,
-    dirtyDescription: null,
-  };
-
-  handleKeyDown = (e) => {
-    if (e.keyCode === 13 && (e.ctrlKey || e.metaKey)) {
-      this.handleSubmit();
-    }
-  }
-
-  handleSubmit = () => {
-    this.handleInputBlur();
-    this.props.onSubmit(this.context.router.history);
-  }
-
   handleUndoClick = e => {
     e.stopPropagation();
     this.props.onUndo(this.props.media.get('id'));
@@ -55,69 +30,21 @@ class Upload extends ImmutablePureComponent {
     this.props.onOpenFocalPoint(this.props.media.get('id'));
   }
 
-  handleInputChange = e => {
-    this.setState({ dirtyDescription: e.target.value });
-  }
-
-  handleMouseEnter = () => {
-    this.setState({ hovered: true });
-  }
-
-  handleMouseLeave = () => {
-    this.setState({ hovered: false });
-  }
-
-  handleInputFocus = () => {
-    this.setState({ focused: true });
-  }
-
-  handleClick = () => {
-    this.setState({ focused: true });
-  }
-
-  handleInputBlur = () => {
-    const { dirtyDescription } = this.state;
-
-    this.setState({ focused: false, dirtyDescription: null });
-
-    if (dirtyDescription !== null) {
-      this.props.onDescriptionChange(this.props.media.get('id'), dirtyDescription);
-    }
-  }
-
   render () {
-    const { intl, media } = this.props;
-    const active          = this.state.hovered || this.state.focused;
-    const description     = this.state.dirtyDescription || (this.state.dirtyDescription !== '' && media.get('description')) || '';
+    const { media } = this.props;
     const focusX = media.getIn(['meta', 'focus', 'x']);
     const focusY = media.getIn(['meta', 'focus', 'y']);
     const x = ((focusX /  2) + .5) * 100;
     const y = ((focusY / -2) + .5) * 100;
 
     return (
-      <div className='compose-form__upload' tabIndex='0' onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave} onClick={this.handleClick} role='button'>
+      <div className='compose-form__upload' tabIndex='0' role='button'>
         <Motion defaultStyle={{ scale: 0.8 }} style={{ scale: spring(1, { stiffness: 180, damping: 12 }) }}>
           {({ scale }) => (
             <div className='compose-form__upload-thumbnail' style={{ transform: `scale(${scale})`, backgroundImage: `url(${media.get('preview_url')})`, backgroundPosition: `${x}% ${y}%` }}>
-              <div className={classNames('compose-form__upload__actions', { active })}>
+              <div className={classNames('compose-form__upload__actions', { active: true })}>
                 <button className='icon-button' onClick={this.handleUndoClick}><Icon id='times' /> <FormattedMessage id='upload_form.undo' defaultMessage='Delete' /></button>
-                {media.get('type') === 'image' && <button className='icon-button' onClick={this.handleFocalPointClick}><Icon id='crosshairs' /> <FormattedMessage id='upload_form.focus' defaultMessage='Crop' /></button>}
-              </div>
-
-              <div className={classNames('compose-form__upload-description', { active })}>
-                <label>
-                  <span style={{ display: 'none' }}>{intl.formatMessage(messages.description)}</span>
-
-                  <textarea
-                    placeholder={intl.formatMessage(messages.description)}
-                    value={description}
-                    maxLength={420}
-                    onFocus={this.handleInputFocus}
-                    onChange={this.handleInputChange}
-                    onBlur={this.handleInputBlur}
-                    onKeyDown={this.handleKeyDown}
-                  />
-                </label>
+                <button className='icon-button' onClick={this.handleFocalPointClick}><Icon id='pencil' /> <FormattedMessage id='upload_form.edit' defaultMessage='Edit' /></button>
               </div>
             </div>
           )}