Focal points (#6520)
* Add focus param to media API, center thumbnails on focus point * Add UI for setting a focal point * Improve focal point icon on upload item * Use focal point in upload preview * Add focalPoint property to ActivityPub * Don't show focal point button for non-image attachmentsmain
Eugen Rochko
7 years ago
committed by
GitHub
parent
d3a62d2637
commit
90f12f2e5a
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import React from 'react';
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import ImmutablePropTypes from 'react-immutable-proptypes';
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import ImmutablePureComponent from 'react-immutable-pure-component';
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import { connect } from 'react-redux';
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import ImageLoader from './image_loader';
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import classNames from 'classnames';
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import { changeUploadCompose } from '../../../actions/compose';
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import { getPointerPosition } from '../../video';
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const mapStateToProps = (state, { id }) => ({
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media: state.getIn(['compose', 'media_attachments']).find(item => item.get('id') === id),
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});
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const mapDispatchToProps = (dispatch, { id }) => ({
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onSave: (x, y) => {
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dispatch(changeUploadCompose(id, { focus: `${x.toFixed(2)},${y.toFixed(2)}` }));
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},
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});
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@connect(mapStateToProps, mapDispatchToProps)
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export default class FocalPointModal extends ImmutablePureComponent {
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static propTypes = {
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media: ImmutablePropTypes.map.isRequired,
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};
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state = {
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x: 0,
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y: 0,
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focusX: 0,
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focusY: 0,
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dragging: false,
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};
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componentWillMount () {
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this.updatePositionFromMedia(this.props.media);
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}
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componentWillReceiveProps (nextProps) {
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if (this.props.media.get('id') !== nextProps.media.get('id')) {
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this.updatePositionFromMedia(nextProps.media);
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}
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}
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componentWillUnmount () {
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document.removeEventListener('mousemove', this.handleMouseMove);
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document.removeEventListener('mouseup', this.handleMouseUp);
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}
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handleMouseDown = e => {
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document.addEventListener('mousemove', this.handleMouseMove);
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document.addEventListener('mouseup', this.handleMouseUp);
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this.updatePosition(e);
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this.setState({ dragging: true });
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}
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handleMouseMove = e => {
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this.updatePosition(e);
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}
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handleMouseUp = () => {
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document.removeEventListener('mousemove', this.handleMouseMove);
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document.removeEventListener('mouseup', this.handleMouseUp);
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this.setState({ dragging: false });
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this.props.onSave(this.state.focusX, this.state.focusY);
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}
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updatePosition = e => {
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const { x, y } = getPointerPosition(this.node, e);
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const focusX = (x - .5) * 2;
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const focusY = (y - .5) * -2;
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this.setState({ x, y, focusX, focusY });
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}
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updatePositionFromMedia = media => {
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const focusX = media.getIn(['meta', 'focus', 'x']);
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const focusY = media.getIn(['meta', 'focus', 'y']);
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if (focusX && focusY) {
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const x = (focusX / 2) + .5;
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const y = (focusY / -2) + .5;
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this.setState({ x, y, focusX, focusY });
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} else {
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this.setState({ x: 0.5, y: 0.5, focusX: 0, focusY: 0 });
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}
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}
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setRef = c => {
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this.node = c;
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}
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render () {
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const { media } = this.props;
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const { x, y, dragging } = this.state;
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const width = media.getIn(['meta', 'original', 'width']) || null;
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const height = media.getIn(['meta', 'original', 'height']) || null;
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return (
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<div className='modal-root__modal media-modal'>
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<div className={classNames('media-modal__content focal-point', { dragging })} ref={this.setRef}>
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<ImageLoader
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previewSrc={media.get('preview_url')}
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src={media.get('url')}
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width={width}
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height={height}
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/>
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<div className='focal-point__reticle' style={{ top: `${y * 100}%`, left: `${x * 100}%` }} />
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<div className='focal-point__overlay' onMouseDown={this.handleMouseDown} />
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</div>
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</div>
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);
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}
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}
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