[Glitch] Center thumbnails on focus point
Port the display part of the following commits to glitch-soc: *90f12f2e5a
*b170627ceb
*11697d6894
*56eb5c3f34
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f1e25b672a
commit
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2 changed files with 21 additions and 9 deletions
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@ -136,16 +136,21 @@ class Item extends React.PureComponent {
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let thumbnail = '';
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if (attachment.get('type') === 'image') {
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const previewUrl = attachment.get('preview_url');
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const previewUrl = attachment.get('preview_url');
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const previewWidth = attachment.getIn(['meta', 'small', 'width']);
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const originalUrl = attachment.get('url');
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const originalWidth = attachment.getIn(['meta', 'original', 'width']);
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const originalUrl = attachment.get('url');
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const originalWidth = attachment.getIn(['meta', 'original', 'width']);
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const hasSize = typeof originalWidth === 'number' && typeof previewWidth === 'number';
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const srcSet = hasSize ? `${originalUrl} ${originalWidth}w, ${previewUrl} ${previewWidth}w` : null;
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const sizes = hasSize ? `(min-width: 1025px) ${320 * (width / 100)}px, ${width}vw` : null;
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const sizes = hasSize ? `(min-width: 1025px) ${320 * (width / 100)}px, ${width}vw` : null;
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const focusX = attachment.getIn(['meta', 'focus', 'x']) || 0;
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const focusY = attachment.getIn(['meta', 'focus', 'y']) || 0;
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const x = ((focusX / 2) + .5) * 100;
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const y = ((focusY / -2) + .5) * 100;
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thumbnail = (
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<a
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@ -154,7 +159,14 @@ class Item extends React.PureComponent {
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onClick={this.handleClick}
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target='_blank'
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>
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<img className={letterbox ? 'letterbox' : null} src={previewUrl} srcSet={srcSet} sizes={sizes} alt={attachment.get('description')} title={attachment.get('description')} />
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<img
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className={letterbox ? 'letterbox' : null}
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src={previewUrl}
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srcSet={srcSet}
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sizes={sizes}
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alt={attachment.get('description')}
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title={attachment.get('description')}
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style={{ objectPosition: `${x}% ${y}%` }} />
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</a>
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);
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} else if (attachment.get('type') === 'gifv') {
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@ -226,7 +238,7 @@ export default class MediaGallery extends React.PureComponent {
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}
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handleRef = (node) => {
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if (node && this.isStandaloneEligible()) {
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if (node /*&& this.isStandaloneEligible()*/) {
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// offsetWidth triggers a layout, so only calculate when we need to
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this.setState({
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width: node.offsetWidth,
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@ -29,7 +29,7 @@ const formatTime = secondsNum => {
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return (hours === '00' ? '' : `${hours}:`) + `${minutes}:${seconds}`;
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};
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const findElementPosition = el => {
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export const findElementPosition = el => {
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let box;
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if (el.getBoundingClientRect && el.parentNode) {
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@ -60,7 +60,7 @@ const findElementPosition = el => {
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};
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};
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const getPointerPosition = (el, event) => {
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export const getPointerPosition = (el, event) => {
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const position = {};
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const box = findElementPosition(el);
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const boxW = el.offsetWidth;
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@ -76,7 +76,7 @@ const getPointerPosition = (el, event) => {
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pageY = event.changedTouches[0].pageY;
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}
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position.y = Math.max(0, Math.min(1, ((boxY - pageY) + boxH) / boxH));
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position.y = Math.max(0, Math.min(1, (pageY - boxY) / boxH));
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position.x = Math.max(0, Math.min(1, (pageX - boxX) / boxW));
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return position;
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