chinwagsocial/app/javascript/mastodon/features/compose/components/upload.js
Ben Lubar 309043b158 Improve image description user experience (#10036)
* Add image descriptions to searchable post content.

* Allow multi-line image descriptions.

* Request image descriptions in the same query as posts when creating the search index.

(see https://github.com/tootsuite/mastodon/pull/10036#discussion_r256551624)
2019-02-14 01:04:43 +01:00

129 lines
4.3 KiB
JavaScript

import React from 'react';
import ImmutablePropTypes from 'react-immutable-proptypes';
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 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 {
static contextTypes = {
router: PropTypes.object,
};
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'));
}
handleFocalPointClick = e => {
e.stopPropagation();
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 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'>
<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 })}>
<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>
</div>
</div>
)}
</Motion>
</div>
);
}
}