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Fix image preview sizing for edge cases (#8322)

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Janne Mareike Koschinski 2022-04-14 20:07:34 +02:00 committed by GitHub
parent ffeab40af6
commit 1436f23e2f
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 19 additions and 1 deletions
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6
res/css/views/messages/_MImageBody.scss
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@ -38,6 +38,12 @@ $timeline-image-border-radius: 8px;
// Necessary for the border radius to apply correctly to the placeholder // Necessary for the border radius to apply correctly to the placeholder
overflow: hidden; overflow: hidden;
contain: paint; contain: paint;
min-height: $font-44px;
min-width: $font-44px;
display: flex;
justify-content: center;
align-items: center;
} }
.mx_MImageBody_thumbnail { .mx_MImageBody_thumbnail {

5
res/css/views/rooms/_EventBubbleTile.scss
View file

@ -114,6 +114,11 @@ limitations under the License.
padding-right: 48px; padding-right: 48px;
} }
.mx_MImageBody_thumbnail_container {
min-height: calc(1.8rem + var(--gutterSize) + var(--gutterSize));
min-width: calc(1.8rem + var(--gutterSize) + var(--gutterSize));
}
.mx_CallEvent { .mx_CallEvent {
background-color: unset; background-color: unset;

9
src/components/views/messages/MImageBody.tsx
View file

@ -364,10 +364,12 @@ export default class MImageBody extends React.Component<IBodyProps, IState> {
let infoWidth: number; let infoWidth: number;
let infoHeight: number; let infoHeight: number;
let infoSvg = false;
if (content.info?.w && content.info?.h) { if (content.info?.w && content.info?.h) {
infoWidth = content.info.w; infoWidth = content.info.w;
infoHeight = content.info.h; infoHeight = content.info.h;
infoSvg = content.info.mimetype.startsWith("image/svg");
} else { } else {
// Whilst the image loads, display nothing. We also don't display a blurhash image // Whilst the image loads, display nothing. We also don't display a blurhash image
// because we don't really know what size of image we'll end up with. // because we don't really know what size of image we'll end up with.
@ -449,6 +451,11 @@ export default class MImageBody extends React.Component<IBodyProps, IState> {
'mx_MImageBody_placeholder--blurhash': this.props.mxEvent.getContent().info?.[BLURHASH_FIELD], 'mx_MImageBody_placeholder--blurhash': this.props.mxEvent.getContent().info?.[BLURHASH_FIELD],
}); });
// many SVGs don't have an intrinsic size if used in <img> elements.
// due to this we have to set our desired width directly.
// this way if the image is forced to shrink, the height adapts appropriately.
const sizing = infoSvg ? { maxHeight, maxWidth, width: maxWidth } : { maxHeight, maxWidth };
const thumbnail = ( const thumbnail = (
<div className="mx_MImageBody_thumbnail_container" style={{ maxHeight, maxWidth, aspectRatio: `${infoWidth}/${infoHeight}` }}> <div className="mx_MImageBody_thumbnail_container" style={{ maxHeight, maxWidth, aspectRatio: `${infoWidth}/${infoHeight}` }}>
<SwitchTransition mode="out-in"> <SwitchTransition mode="out-in">
@ -463,7 +470,7 @@ export default class MImageBody extends React.Component<IBodyProps, IState> {
</CSSTransition> </CSSTransition>
</SwitchTransition> </SwitchTransition>
<div style={{ maxHeight, maxWidth }}> <div style={sizing}>
{ img } { img }
{ gifLabel } { gifLabel }
</div> </div>