[RFC] Improved media modal (#5956)

* Improved media modal

ImageLoader: Impliment pinch zoom by CSS `transform: scale(X)`
ImageLoader: Impliment panning by CSS `overflow: scroll`
ImageLoader: Larger image
MediaModal: Larger close button
MediaModal: Close the modal by swiping vertically
MediaModal: Show/hide close button and right/left navigation on tapping image
MediaModal: Change the `pointer-event` CSS prpp to get more blank space to close the modal
ImageLoader: Zoom/reset zoom on double tap
MediaModal: disable vertical swiping while horizontally swiped
ImageLoader: prevent propagating touchmove event to MediaModal
MediaModal: Adjust size and potision of buttons
ImageLoader: Adjust scroll potision on pinch zoom

* Remove "swipe to close" and "double tap to zoom" features

* remove unused prop and functions

removed `onScroll` prop and `handleScroll` func in ImageLoader

* separate zoom functionary to ZoomableImage component

adjust styling of ImageLoader
add styling for ZoomableImage

* adjust size and potision of close button of media modal

* Fix for gif video

add `onClick` prop to ExtendedVideoPlayer
specify `onClick` prop to video tag for switching nav of `MediaModal`
add `.video-modal` class to scss to separate styling for `VideoModal`

* fix styling for centering

specify height of `ZoomableImage` by pixel
clean styling for `ImageLoader`

* fix lint errors

* small fix

* fixed designated parts
This commit is contained in:
Yuto Tokunaga 2018-03-05 04:32:24 +09:00 committed by Eugen Rochko
parent ef44c62d17
commit 4e929b2d17
6 changed files with 330 additions and 93 deletions

View file

@ -11,6 +11,7 @@ export default class ExtendedVideoPlayer extends React.PureComponent {
time: PropTypes.number,
controls: PropTypes.bool.isRequired,
muted: PropTypes.bool.isRequired,
onClick: PropTypes.func,
};
handleLoadedData = () => {
@ -31,6 +32,12 @@ export default class ExtendedVideoPlayer extends React.PureComponent {
this.video = c;
}
handleClick = e => {
e.stopPropagation();
const handler = this.props.onClick;
if (handler) handler();
}
render () {
const { src, muted, controls, alt } = this.props;
@ -46,6 +53,7 @@ export default class ExtendedVideoPlayer extends React.PureComponent {
muted={muted}
controls={controls}
loop={!controls}
onClick={this.handleClick}
/>
</div>
);

View file

@ -1,6 +1,7 @@
import React from 'react';
import PropTypes from 'prop-types';
import classNames from 'classnames';
import ZoomableImage from './zoomable_image';
export default class ImageLoader extends React.PureComponent {
@ -10,6 +11,7 @@ export default class ImageLoader extends React.PureComponent {
previewSrc: PropTypes.string,
width: PropTypes.number,
height: PropTypes.number,
onClick: PropTypes.func,
}
static defaultProps = {
@ -24,6 +26,7 @@ export default class ImageLoader extends React.PureComponent {
}
removers = [];
canvas = null;
get canvasContext() {
if (!this.canvas) {
@ -43,6 +46,10 @@ export default class ImageLoader extends React.PureComponent {
}
}
componentWillUnmount () {
this.removeEventListeners();
}
loadImage (props) {
this.removeEventListeners();
this.setState({ loading: true, error: false });
@ -118,7 +125,7 @@ export default class ImageLoader extends React.PureComponent {
}
render () {
const { alt, src, width, height } = this.props;
const { alt, src, width, height, onClick } = this.props;
const { loading } = this.state;
const className = classNames('image-loader', {
@ -128,22 +135,19 @@ export default class ImageLoader extends React.PureComponent {
return (
<div className={className}>
{loading ? (
<canvas
className='image-loader__preview-canvas'
width={width}
height={height}
ref={this.setCanvasRef}
style={{ opacity: loading ? 1 : 0 }}
/>
{!loading && (
<img
alt={alt}
className='image-loader__img'
src={src}
width={width}
height={height}
/>
) : (
<ZoomableImage
alt={alt}
src={src}
onClick={onClick}
/>
)}
</div>
);

View file

@ -3,6 +3,7 @@ import ReactSwipeableViews from 'react-swipeable-views';
import ImmutablePropTypes from 'react-immutable-proptypes';
import PropTypes from 'prop-types';
import ExtendedVideoPlayer from '../../../components/extended_video_player';
import classNames from 'classnames';
import { defineMessages, injectIntl } from 'react-intl';
import IconButton from '../../../components/icon_button';
import ImmutablePureComponent from 'react-immutable-pure-component';
@ -26,6 +27,7 @@ export default class MediaModal extends ImmutablePureComponent {
state = {
index: null,
navigationHidden: false,
};
handleSwipe = (index) => {
@ -68,14 +70,21 @@ export default class MediaModal extends ImmutablePureComponent {
return this.state.index !== null ? this.state.index : this.props.index;
}
toggleNavigation = () => {
this.setState(prevState => ({
navigationHidden: !prevState.navigationHidden,
}));
};
render () {
const { media, intl, onClose } = this.props;
const { navigationHidden } = this.state;
const index = this.getIndex();
let pagination = [];
const leftNav = media.size > 1 && <button tabIndex='0' className='modal-container__nav modal-container__nav--left' onClick={this.handlePrevClick} aria-label={intl.formatMessage(messages.previous)}><i className='fa fa-fw fa-chevron-left' /></button>;
const rightNav = media.size > 1 && <button tabIndex='0' className='modal-container__nav modal-container__nav--right' onClick={this.handleNextClick} aria-label={intl.formatMessage(messages.next)}><i className='fa fa-fw fa-chevron-right' /></button>;
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)}><i className='fa fa-fw fa-chevron-left' /></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)}><i className='fa fa-fw fa-chevron-right' /></button>;
if (media.size > 1) {
pagination = media.map((item, i) => {
@ -92,9 +101,30 @@ export default class MediaModal extends ImmutablePureComponent {
const height = image.getIn(['meta', 'original', 'height']) || null;
if (image.get('type') === 'image') {
return <ImageLoader previewSrc={image.get('preview_url')} src={image.get('url')} width={width} height={height} alt={image.get('description')} key={image.get('url')} />;
return (
<ImageLoader
previewSrc={image.get('preview_url')}
src={image.get('url')}
width={width}
height={height}
alt={image.get('description')}
key={image.get('url')}
onClick={this.toggleNavigation}
/>
);
} else if (image.get('type') === 'gifv') {
return <ExtendedVideoPlayer src={image.get('url')} muted controls={false} width={width} height={height} key={image.get('preview_url')} alt={image.get('description')} />;
return (
<ExtendedVideoPlayer
src={image.get('url')}
muted
controls={false}
width={width}
height={height}
key={image.get('preview_url')}
alt={image.get('description')}
onClick={this.toggleNavigation}
/>
);
}
return null;
@ -104,21 +134,43 @@ export default class MediaModal extends ImmutablePureComponent {
alignItems: 'center', // center vertically
};
const navigationClassName = classNames('media-modal__navigation', {
'media-modal__navigation--hidden': navigationHidden,
});
return (
<div className='modal-root__modal media-modal'>
{leftNav}
<div
className='media-modal__closer'
role='presentation'
onClick={onClose}
>
<div className='media-modal__content'>
<IconButton className='media-modal__close' title={intl.formatMessage(messages.close)} icon='times' onClick={onClose} size={16} />
<ReactSwipeableViews containerStyle={containerStyle} onChangeIndex={this.handleSwipe} index={index}>
<ReactSwipeableViews
style={{
// you can't use 100vh, because the viewport height is taller
// than the visible part of the document in some mobile
// browsers when it's address bar is visible.
// https://developers.google.com/web/updates/2016/12/url-bar-resizing
height: `${document.body.clientHeight}px`,
}}
containerStyle={containerStyle}
onChangeIndex={this.handleSwipe}
onSwitching={this.handleSwitching}
index={index}
>
{content}
</ReactSwipeableViews>
</div>
</div>
<div className={navigationClassName}>
<IconButton className='media-modal__close' title={intl.formatMessage(messages.close)} icon='times' onClick={onClose} size={40} />
{leftNav}
{rightNav}
<ul className='media-modal__pagination'>
{pagination}
</ul>
{rightNav}
</div>
</div>
);
}

View file

@ -16,7 +16,7 @@ export default class VideoModal extends ImmutablePureComponent {
const { media, time, onClose } = this.props;
return (
<div className='modal-root__modal media-modal'>
<div className='modal-root__modal video-modal'>
<div>
<Video
preview={media.get('preview_url')}

View file

@ -0,0 +1,151 @@
import React from 'react';
import PropTypes from 'prop-types';
const MIN_SCALE = 1;
const MAX_SCALE = 4;
const getMidpoint = (p1, p2) => ({
x: (p1.clientX + p2.clientX) / 2,
y: (p1.clientY + p2.clientY) / 2,
});
const getDistance = (p1, p2) =>
Math.sqrt(Math.pow(p1.clientX - p2.clientX, 2) + Math.pow(p1.clientY - p2.clientY, 2));
const clamp = (min, max, value) => Math.min(max, Math.max(min, value));
export default class ZoomableImage extends React.PureComponent {
static propTypes = {
alt: PropTypes.string,
src: PropTypes.string.isRequired,
width: PropTypes.number,
height: PropTypes.number,
onClick: PropTypes.func,
}
static defaultProps = {
alt: '',
width: null,
height: null,
};
state = {
scale: MIN_SCALE,
}
removers = [];
container = null;
image = null;
lastTouchEndTime = 0;
lastDistance = 0;
componentDidMount () {
let handler = this.handleTouchStart;
this.container.addEventListener('touchstart', handler);
this.removers.push(() => this.container.removeEventListener('touchstart', handler));
handler = this.handleTouchMove;
// on Chrome 56+, touch event listeners will default to passive
// https://www.chromestatus.com/features/5093566007214080
this.container.addEventListener('touchmove', handler, { passive: false });
this.removers.push(() => this.container.removeEventListener('touchend', handler));
}
componentWillUnmount () {
this.removeEventListeners();
}
removeEventListeners () {
this.removers.forEach(listeners => listeners());
this.removers = [];
}
handleTouchStart = e => {
if (e.touches.length !== 2) return;
this.lastDistance = getDistance(...e.touches);
}
handleTouchMove = e => {
const { scrollTop, scrollHeight, clientHeight } = this.container;
if (e.touches.length === 1 && scrollTop !== scrollHeight - clientHeight) {
// prevent propagating event to MediaModal
e.stopPropagation();
return;
}
if (e.touches.length !== 2) return;
e.preventDefault();
e.stopPropagation();
const distance = getDistance(...e.touches);
const midpoint = getMidpoint(...e.touches);
const scale = clamp(MIN_SCALE, MAX_SCALE, this.state.scale * distance / this.lastDistance);
this.zoom(scale, midpoint);
this.lastMidpoint = midpoint;
this.lastDistance = distance;
}
zoom(nextScale, midpoint) {
const { scale } = this.state;
const { scrollLeft, scrollTop } = this.container;
// math memo:
// x = (scrollLeft + midpoint.x) / scrollWidth
// x' = (nextScrollLeft + midpoint.x) / nextScrollWidth
// scrollWidth = clientWidth * scale
// scrollWidth' = clientWidth * nextScale
// Solve x = x' for nextScrollLeft
const nextScrollLeft = (scrollLeft + midpoint.x) * nextScale / scale - midpoint.x;
const nextScrollTop = (scrollTop + midpoint.y) * nextScale / scale - midpoint.y;
this.setState({ scale: nextScale }, () => {
this.container.scrollLeft = nextScrollLeft;
this.container.scrollTop = nextScrollTop;
});
}
handleClick = e => {
// don't propagate event to MediaModal
e.stopPropagation();
const handler = this.props.onClick;
if (handler) handler();
}
setContainerRef = c => {
this.container = c;
}
setImageRef = c => {
this.image = c;
}
render () {
const { alt, src } = this.props;
const { scale } = this.state;
const overflow = scale === 1 ? 'hidden' : 'scroll';
return (
<div
className='zoomable-image'
ref={this.setContainerRef}
style={{ overflow }}
>
<img
role='presentation'
ref={this.setImageRef}
alt={alt}
src={src}
style={{
transform: `scale(${scale})`,
transformOrigin: '0 0',
}}
onClick={this.handleClick}
/>
</div>
);
}
}

View file

@ -1433,36 +1433,29 @@
.image-loader {
position: relative;
width: 100%;
height: 100%;
&.image-loader--loading {
display: flex;
align-content: center;
.image-loader__preview-canvas {
filter: blur(2px);
}
}
.image-loader__img {
position: absolute;
top: 0;
left: 0;
right: 0;
max-width: 100%;
max-height: 100%;
background-image: none;
}
&.image-loader--amorphous {
position: static;
.image-loader__preview-canvas {
&.image-loader--amorphous .image-loader__preview-canvas {
display: none;
}
}
.image-loader__img {
position: static;
width: auto;
height: auto;
}
}
.zoomable-image {
position: relative;
width: 100%;
height: 100%;
display: flex;
align-content: center;
}
.navigation-bar {
@ -2799,29 +2792,6 @@ a.status-card {
}
}
.modal-container__nav {
align-items: center;
background: rgba($base-overlay-background, 0.5);
box-sizing: border-box;
border: 0;
color: $primary-text-color;
cursor: pointer;
display: flex;
font-size: 24px;
height: 100%;
padding: 30px 15px;
position: absolute;
top: 0;
}
.modal-container__nav--left {
left: -61px;
}
.modal-container__nav--right {
right: -61px;
}
.account--follows-info {
color: $primary-text-color;
position: absolute;
@ -3418,29 +3388,27 @@ a.status-card {
z-index: 9999;
}
.video-modal {
max-width: 100vw;
max-height: 100vh;
position: relative;
}
.media-modal {
max-width: 80vw;
max-height: 80vh;
width: 100%;
height: 100%;
position: relative;
.extended-video-player,
img,
canvas,
video {
max-width: 80vw;
max-height: 80vh;
max-width: 100vw;
max-height: 100vh;
width: auto;
height: auto;
margin: auto;
}
.extended-video-player,
video {
display: flex;
width: 80vw;
height: 80vh;
}
img,
canvas {
display: block;
@ -3449,12 +3417,65 @@ a.status-card {
}
.react-swipeable-view-container {
max-width: 80vw;
width: 100vw;
height: 100%;
}
}
.media-modal__content {
background: $base-overlay-background;
.media-modal__closer {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
}
.media-modal__navigation {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
pointer-events: none;
transition: opacity 0.3s linear;
will-change: opacity;
* {
pointer-events: auto;
}
&.media-modal__navigation--hidden {
opacity: 0;
* {
pointer-events: none;
}
}
}
.media-modal__nav {
background: rgba($base-overlay-background, 0.5);
box-sizing: border-box;
border: 0;
color: $primary-text-color;
cursor: pointer;
display: flex;
align-items: center;
font-size: 24px;
height: 20vmax;
margin: auto 0;
padding: 30px 15px;
position: absolute;
top: 0;
bottom: 0;
}
.media-modal__nav--left {
left: 0;
}
.media-modal__nav--right {
right: 0;
}
.media-modal__pagination {
@ -3462,7 +3483,8 @@ a.status-card {
text-align: center;
position: absolute;
left: 0;
bottom: -40px;
bottom: 20px;
pointer-events: none;
}
.media-modal__page-dot {
@ -3486,8 +3508,8 @@ a.status-card {
.media-modal__close {
position: absolute;
right: 4px;
top: 4px;
right: 8px;
top: 8px;
z-index: 100;
}