Replace image lightbox with slate-style shadowbox.
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Full-viewport blur backdrop, floating chrome, wheel/click/pinch zoom and pan; drop the ModalWide card shell around timeline and profile image viewers.
This commit is contained in:
2026-08-09 15:58:47 +10:00
parent 13523fea2b
commit e08b4ec22e
4 changed files with 543 additions and 137 deletions

View File

@@ -1,42 +1,127 @@
import { style } from '@vanilla-extract/css';
import { DefaultReset, color, config } from 'folds';
import { DefaultReset } from 'folds';
export const ImageViewer = style([
export const Root = style([
DefaultReset,
{
height: '100%',
position: 'fixed',
inset: 0,
zIndex: 200,
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
padding: 16,
boxSizing: 'border-box',
},
]);
export const ImageViewerHeader = style([
export const Backdrop = style([
DefaultReset,
{
paddingLeft: config.space.S200,
paddingRight: config.space.S200,
borderBottomWidth: config.borderWidth.B300,
flexShrink: 0,
gap: config.space.S200,
position: 'absolute',
inset: 0,
backgroundColor: 'rgba(0, 0, 0, 0.72)',
backdropFilter: 'blur(18px)',
WebkitBackdropFilter: 'blur(18px)',
cursor: 'zoom-out',
},
]);
export const ImageViewerContent = style([
export const Stage = style([
DefaultReset,
{
backgroundColor: color.Background.Container,
color: color.Background.OnContainer,
position: 'relative',
zIndex: 1,
display: 'flex',
flexDirection: 'column',
alignItems: 'stretch',
gap: 10,
maxWidth: 'min(96vw, 1100px)',
maxHeight: 'min(92vh, 900px)',
width: '100%',
minWidth: 0,
pointerEvents: 'none',
},
]);
export const Chrome = style([
DefaultReset,
{
display: 'flex',
alignItems: 'center',
gap: 8,
width: '100%',
minWidth: 0,
color: '#fff',
pointerEvents: 'auto',
},
]);
export const Title = style([
DefaultReset,
{
flex: 1,
minWidth: 0,
fontSize: 13,
fontWeight: 600,
lineHeight: '18px',
color: 'rgba(255, 255, 255, 0.9)',
overflow: 'hidden',
textOverflow: 'ellipsis',
whiteSpace: 'nowrap',
},
]);
export const ImageViewerImg = style([
export const ChromeButton = style([
DefaultReset,
{
objectFit: 'contain',
width: 'auto',
height: 'auto',
maxWidth: '100%',
maxHeight: '100%',
backgroundColor: color.Surface.Container,
transition: 'transform 100ms linear',
display: 'inline-flex',
alignItems: 'center',
justifyContent: 'center',
flexShrink: 0,
padding: 6,
border: 'none',
borderRadius: 4,
background: 'rgba(0, 0, 0, 0.4)',
color: '#fff',
cursor: 'pointer',
},
]);
export const Frame = style([
DefaultReset,
{
position: 'relative',
alignSelf: 'center',
maxWidth: 'min(96vw, 1100px)',
maxHeight: 'min(80vh, 820px)',
overflow: 'hidden',
cursor: 'zoom-in',
touchAction: 'none',
pointerEvents: 'auto',
selectors: {
'&[data-zoomed]': {
cursor: 'zoom-out',
overflow: 'visible',
},
'&[data-pannable]': {
cursor: 'grab',
},
'&[data-dragging]': {
cursor: 'grabbing',
},
},
},
]);
export const Image = style([
DefaultReset,
{
display: 'block',
borderRadius: 8,
background: 'transparent',
transform: 'translate(var(--img-tx, 0px), var(--img-ty, 0px)) scale(var(--img-zoom, 1))',
transformOrigin: '0 0',
userSelect: 'none',
},
]);

View File

@@ -1,16 +1,62 @@
/* eslint-disable jsx-a11y/no-noninteractive-element-interactions */
import React from 'react';
import React, {
useCallback,
useEffect,
useLayoutEffect,
useRef,
useState,
} from 'react';
import FileSaver from 'file-saver';
import classNames from 'classnames';
import { Box, Chip, Header, IconButton, Text, as } from 'folds';
import { as } from 'folds';
import { Icon, Icons } from '../icons';
import * as css from './ImageViewer.css';
import { useZoom } from '../../hooks/useZoom';
import { usePan } from '../../hooks/usePan';
import { downloadMedia } from '../../utils/matrix';
import { useMatrixClient } from '../../hooks/useMatrixClient';
import { getCurrentAccessToken } from '../../utils/auth';
const ZOOM_MIN = 1;
const ZOOM_MAX = 5;
const ZOOM_CLICK = 2.5;
const DRAG_CLICK_SLOP = 6;
type ZoomState = {
scale: number;
tx: number;
ty: number;
};
type PinchSession = {
startDist: number;
startScale: number;
startTx: number;
startTy: number;
startMidX: number;
startMidY: number;
};
const INITIAL_ZOOM: ZoomState = { scale: 1, tx: 0, ty: 0 };
function imageViewportMax() {
return {
w: Math.min(window.innerWidth * 0.96, 1100),
h: Math.min(window.innerHeight * 0.8, 820),
};
}
function pointerDistance(
a: { x: number; y: number },
b: { x: number; y: number }
): number {
return Math.hypot(a.x - b.x, a.y - b.y);
}
function pointerMidpoint(
a: { x: number; y: number },
b: { x: number; y: number }
): { x: number; y: number } {
return { x: (a.x + b.x) / 2, y: (a.y + b.y) / 2 };
}
export type ImageViewerProps = {
alt: string;
src: string;
@@ -19,18 +65,215 @@ export type ImageViewerProps = {
export const ImageViewer = as<'div', ImageViewerProps>(
({ className, alt, src, requestClose, ...props }, ref) => {
const mx = useMatrixClient();
const { zoom, zoomIn, zoomOut, setZoom } = useZoom(0.2);
const { pan, cursor, onMouseDown } = usePan(zoom !== 1);
const frameRef = useRef<HTMLDivElement>(null);
const imgRef = useRef<HTMLImageElement>(null);
const zoomRef = useRef<ZoomState>({ ...INITIAL_ZOOM });
const pointersRef = useRef<Map<number, { x: number; y: number }>>(new Map());
const dragRef = useRef<{
id: number;
x: number;
y: number;
tx: number;
ty: number;
moved: boolean;
} | null>(null);
const pinchRef = useRef<PinchSession | null>(null);
/** Skip the next click after a pinch so we don't toggle zoom. */
const suppressClickRef = useRef(false);
const baseSizeRef = useRef({ w: 0, h: 0 });
const [zoom, setZoom] = useState<ZoomState>(INITIAL_ZOOM);
const [dragging, setDragging] = useState(false);
const applyZoomCss = useCallback((next: ZoomState) => {
const img = imgRef.current;
if (!img) return;
img.style.setProperty('--img-zoom', String(next.scale));
img.style.setProperty('--img-tx', `${next.tx}px`);
img.style.setProperty('--img-ty', `${next.ty}px`);
}, []);
const clampPan = useCallback((state: ZoomState): ZoomState => {
const img = imgRef.current;
const frame = frameRef.current;
if (!img || !frame) return state;
const baseW = img.offsetWidth || baseSizeRef.current.w;
const baseH = img.offsetHeight || baseSizeRef.current.h;
const frameW = frame.clientWidth;
const frameH = frame.clientHeight;
if (!baseW || !baseH || !frameW || !frameH) return state;
const scaledW = baseW * state.scale;
const scaledH = baseH * state.scale;
let { tx, ty } = state;
if (scaledW <= frameW) tx = (frameW - scaledW) / 2;
else tx = Math.min(0, Math.max(frameW - scaledW, tx));
if (scaledH <= frameH) ty = (frameH - scaledH) / 2;
else ty = Math.min(0, Math.max(frameH - scaledH, ty));
return { ...state, tx, ty };
}, []);
const commitZoom = useCallback(
(next: ZoomState) => {
const clamped = clampPan(next);
zoomRef.current = clamped;
applyZoomCss(clamped);
setZoom(clamped);
},
[applyZoomCss, clampPan]
);
const resetZoom = useCallback(() => {
dragRef.current = null;
pinchRef.current = null;
setDragging(false);
commitZoom({ ...INITIAL_ZOOM });
}, [commitZoom]);
const fitImage = useCallback(() => {
const img = imgRef.current;
if (!img) return;
const iw = img.naturalWidth || 0;
const ih = img.naturalHeight || 0;
if (iw <= 0 || ih <= 0) return;
const { w: maxW, h: maxH } = imageViewportMax();
const s = Math.min(1, maxW / iw, maxH / ih);
const w = Math.max(1, Math.round(iw * s));
const h = Math.max(1, Math.round(ih * s));
img.style.width = `${w}px`;
img.style.height = `${h}px`;
baseSizeRef.current = { w, h };
commitZoom({ ...INITIAL_ZOOM });
}, [commitZoom]);
const zoomAround = useCallback(
(px: number, py: number, newScale: number) => {
const z = zoomRef.current;
const scale = Math.min(ZOOM_MAX, Math.max(ZOOM_MIN, newScale));
const ix = (px - z.tx) / z.scale;
const iy = (py - z.ty) / z.scale;
commitZoom({
scale,
tx: px - ix * scale,
ty: py - iy * scale,
});
},
[commitZoom]
);
const framePoint = (clientX: number, clientY: number) => {
const frame = frameRef.current;
if (!frame) return { x: 0, y: 0 };
const r = frame.getBoundingClientRect();
return { x: clientX - r.left, y: clientY - r.top };
};
const beginPinch = useCallback(() => {
const pts = [...pointersRef.current.values()];
if (pts.length < 2) return;
const [a, b] = pts;
const mid = pointerMidpoint(a, b);
const local = framePoint(mid.x, mid.y);
const z = zoomRef.current;
pinchRef.current = {
startDist: Math.max(1, pointerDistance(a, b)),
startScale: z.scale,
startTx: z.tx,
startTy: z.ty,
startMidX: local.x,
startMidY: local.y,
};
dragRef.current = null;
setDragging(true);
}, []);
const updatePinch = useCallback(() => {
const pinch = pinchRef.current;
const pts = [...pointersRef.current.values()];
if (!pinch || pts.length < 2) return;
const [a, b] = pts;
const dist = Math.max(1, pointerDistance(a, b));
const mid = pointerMidpoint(a, b);
const local = framePoint(mid.x, mid.y);
const scale = Math.min(
ZOOM_MAX,
Math.max(ZOOM_MIN, pinch.startScale * (dist / pinch.startDist))
);
// Keep the original content under the pinch midpoint while scaling + panning.
const ix = (pinch.startMidX - pinch.startTx) / pinch.startScale;
const iy = (pinch.startMidY - pinch.startTy) / pinch.startScale;
commitZoom({
scale,
tx: local.x - ix * scale,
ty: local.y - iy * scale,
});
suppressClickRef.current = true;
}, [commitZoom]);
useLayoutEffect(() => {
resetZoom();
}, [src, resetZoom]);
useEffect(() => {
const onKey = (event: KeyboardEvent) => {
if (event.key === 'Escape') {
event.preventDefault();
requestClose();
}
};
document.addEventListener('keydown', onKey);
return () => document.removeEventListener('keydown', onKey);
}, [requestClose]);
useEffect(() => {
const frame = frameRef.current;
if (!frame) return undefined;
const onWheel = (event: WheelEvent) => {
event.preventDefault();
const img = imgRef.current;
if (!img?.src) return;
const factor = Math.exp(-event.deltaY * 0.002);
const r = frame.getBoundingClientRect();
const x = event.clientX - r.left;
const y = event.clientY - r.top;
zoomAround(x, y, zoomRef.current.scale * factor);
};
// Block browser gesture zoom / scroll while pinching on the frame.
const blockGesture = (event: Event) => {
if (pointersRef.current.size >= 2 || pinchRef.current) {
event.preventDefault();
}
};
frame.addEventListener('wheel', onWheel, { passive: false });
frame.addEventListener('touchmove', blockGesture, { passive: false });
return () => {
frame.removeEventListener('wheel', onWheel);
frame.removeEventListener('touchmove', blockGesture);
};
}, [zoomAround]);
useEffect(() => {
const onResize = () => fitImage();
window.addEventListener('resize', onResize);
return () => window.removeEventListener('resize', onResize);
}, [fitImage]);
const handleDownload = async () => {
try {
// Always use current session's token to avoid stale tokens during account switches
const fileContent = await downloadMedia(src, getCurrentAccessToken());
FileSaver.saveAs(fileContent, alt);
} catch (error) {
console.warn('[ImageViewer] Failed to download media:', error);
// Fallback: try to fetch via standard fetch as blob
try {
const response = await fetch(src);
if (response.ok) {
@@ -38,81 +281,171 @@ export const ImageViewer = as<'div', ImageViewerProps>(
FileSaver.saveAs(blob, alt);
}
} catch {
// If all else fails, open in new tab to let browser handle it
window.open(src, '_blank');
}
}
};
const handleClick = (event: React.MouseEvent) => {
if (suppressClickRef.current) {
suppressClickRef.current = false;
return;
}
if (dragRef.current?.moved) {
dragRef.current = null;
return;
}
const img = imgRef.current;
if (!img?.src) return;
event.preventDefault();
const { x, y } = framePoint(event.clientX, event.clientY);
if (zoomRef.current.scale <= 1.01) {
zoomAround(x, y, ZOOM_CLICK);
} else {
resetZoom();
}
};
const handlePointerDown = (event: React.PointerEvent) => {
if (event.button !== 0 && event.pointerType === 'mouse') return;
pointersRef.current.set(event.pointerId, { x: event.clientX, y: event.clientY });
frameRef.current?.setPointerCapture(event.pointerId);
if (pointersRef.current.size >= 2) {
beginPinch();
return;
}
if (zoomRef.current.scale <= 1.01) return;
const z = zoomRef.current;
dragRef.current = {
id: event.pointerId,
x: event.clientX,
y: event.clientY,
tx: z.tx,
ty: z.ty,
moved: false,
};
setDragging(true);
};
const handlePointerMove = (event: React.PointerEvent) => {
if (!pointersRef.current.has(event.pointerId)) return;
pointersRef.current.set(event.pointerId, { x: event.clientX, y: event.clientY });
if (pointersRef.current.size >= 2 && pinchRef.current) {
event.preventDefault();
updatePinch();
return;
}
const drag = dragRef.current;
if (!drag || drag.id !== event.pointerId) return;
const dx = event.clientX - drag.x;
const dy = event.clientY - drag.y;
if (!drag.moved && Math.hypot(dx, dy) > DRAG_CLICK_SLOP) drag.moved = true;
commitZoom({
scale: zoomRef.current.scale,
tx: drag.tx + dx,
ty: drag.ty + dy,
});
};
const handlePointerUp = (event: React.PointerEvent) => {
pointersRef.current.delete(event.pointerId);
frameRef.current?.releasePointerCapture(event.pointerId);
if (pinchRef.current) {
if (pointersRef.current.size >= 2) {
beginPinch();
return;
}
pinchRef.current = null;
setDragging(false);
// Extra Things: one finger left after pinch — hand off to pan if still zoomed.
if (pointersRef.current.size === 1 && zoomRef.current.scale > 1.01) {
const [id, pt] = [...pointersRef.current.entries()][0];
const z = zoomRef.current;
dragRef.current = {
id,
x: pt.x,
y: pt.y,
tx: z.tx,
ty: z.ty,
moved: true,
};
setDragging(true);
} else {
dragRef.current = null;
}
return;
}
const drag = dragRef.current;
if (!drag || drag.id !== event.pointerId) return;
setDragging(false);
if (!drag.moved) dragRef.current = null;
else dragRef.current = { ...drag, moved: true };
};
const zoomed = zoom.scale > 1.01;
return (
<Box
className={classNames(css.ImageViewer, className)}
direction="Column"
<div
className={classNames(css.Root, className)}
role="dialog"
aria-modal="true"
aria-label={alt || 'Image viewer'}
{...props}
ref={ref}
>
<Header className={css.ImageViewerHeader} size="400">
<Box grow="Yes" alignItems="Center" gap="200">
<IconButton size="300" radii="300" onClick={requestClose}>
<Icon size="50" src={Icons.ArrowLeft} />
</IconButton>
<Text size="T300" truncate>
<div className={css.Backdrop} onClick={requestClose} aria-hidden />
<div className={css.Stage}>
<div className={css.Chrome}>
<div className={css.Title} title={alt}>
{alt}
</Text>
</Box>
<Box shrink="No" alignItems="Center" gap="200">
<IconButton
variant={zoom < 1 ? 'Success' : 'SurfaceVariant'}
outlined={zoom < 1}
size="300"
radii="Pill"
onClick={zoomOut}
aria-label="Zoom Out"
>
<Icon size="50" src={Icons.Minus} />
</IconButton>
<Chip variant="SurfaceVariant" radii="Pill" onClick={() => setZoom(zoom === 1 ? 2 : 1)}>
<Text size="B300">{Math.round(zoom * 100)}%</Text>
</Chip>
<IconButton
variant={zoom > 1 ? 'Success' : 'SurfaceVariant'}
outlined={zoom > 1}
size="300"
radii="Pill"
onClick={zoomIn}
aria-label="Zoom In"
>
<Icon size="50" src={Icons.Plus} />
</IconButton>
<Chip
variant="Primary"
</div>
<button
type="button"
className={css.ChromeButton}
aria-label="Download"
onClick={handleDownload}
radii="300"
before={<Icon size="50" src={Icons.Download} />}
>
<Text size="B300">Download</Text>
</Chip>
</Box>
</Header>
<Box
grow="Yes"
className={css.ImageViewerContent}
justifyContent="Center"
alignItems="Center"
>
<img
className={css.ImageViewerImg}
style={{
cursor,
transform: `scale(${zoom}) translate(${pan.translateX}px, ${pan.translateY}px)`,
}}
src={src}
alt={alt}
draggable={false}
onMouseDown={onMouseDown}
/>
</Box>
</Box>
<Icon size="50" src={Icons.Download} />
</button>
<button
type="button"
className={css.ChromeButton}
aria-label="Close"
onClick={requestClose}
>
<Icon size="50" src={Icons.Cross} />
</button>
</div>
<div
ref={frameRef}
className={css.Frame}
data-zoomed={zoomed || undefined}
data-pannable={zoomed || undefined}
data-dragging={dragging || undefined}
onClick={handleClick}
onPointerDown={handlePointerDown}
onPointerMove={handlePointerMove}
onPointerUp={handlePointerUp}
onPointerCancel={handlePointerUp}
>
<img
ref={imgRef}
className={css.Image}
src={src}
alt={alt}
draggable={false}
onLoad={fitImage}
/>
</div>
</div>
</div>
);
}
);

View File

@@ -1,5 +1,5 @@
import React, { ReactNode, useCallback, useEffect, useState } from 'react';
import { Badge, Box, Button, Chip, Modal, Overlay, OverlayBackdrop, OverlayCenter, Spinner, Text, Tooltip, TooltipProvider, as } from 'folds';
import { Badge, Box, Button, Chip, Overlay, Spinner, Text, Tooltip, TooltipProvider, as } from 'folds';
import { Icon, Icons } from '../../icons';
import classNames from 'classnames';
import { Blurhash } from 'react-blurhash';
@@ -14,7 +14,6 @@ import { FALLBACK_MIMETYPE } from '../../../utils/mimeTypes';
import { stopPropagation } from '../../../utils/keyboard';
import { decryptFile, downloadEncryptedMedia, mxcUrlToHttp } from '../../../utils/matrix';
import { useMediaAuthentication } from '../../../hooks/useMediaAuthentication';
import { ModalWide } from '../../../styles/Modal.css';
import { validBlurHash } from '../../../utils/blurHash';
import { getCurrentAccessToken } from '../../../utils/auth';
import { setMediaDimensions, getMediaBlurHash, getMediaDimensions, rememberMediaBlurHash } from '../../../state/mediaDimensionCache';
@@ -192,28 +191,21 @@ export const ImageContent = as<'div', ImageContentProps>(
<div className={css.MediaSkeleton} />
))}
{srcState.status === AsyncStatus.Success && (
<Overlay open={viewer} backdrop={<OverlayBackdrop />}>
<OverlayCenter>
<FocusTrap
focusTrapOptions={{
initialFocus: false,
onDeactivate: () => setViewer(false),
clickOutsideDeactivates: true,
escapeDeactivates: stopPropagation,
}}
>
<Modal
className={ModalWide}
size="500"
>
{renderViewer({
src: srcState.data,
alt: body,
requestClose: () => setViewer(false),
})}
</Modal>
</FocusTrap>
</OverlayCenter>
<Overlay open={viewer} backdrop={null}>
<FocusTrap
focusTrapOptions={{
initialFocus: false,
onDeactivate: () => setViewer(false),
clickOutsideDeactivates: true,
escapeDeactivates: stopPropagation,
}}
>
{renderViewer({
src: srcState.data,
alt: body,
requestClose: () => setViewer(false),
})}
</FocusTrap>
</Overlay>
)}
{!autoPlay && !markedAsSpoiler && srcState.status === AsyncStatus.Idle && (

View File

@@ -1,5 +1,5 @@
import React, { useState } from 'react';
import { Avatar, Box, Modal, Overlay, OverlayBackdrop, OverlayCenter, Text, toRem } from 'folds';
import { Avatar, Box, Overlay, Text, toRem } from 'folds';
import { Icon, Icons } from '../icons';
import classNames from 'classnames';
import FocusTrap from 'focus-trap-react';
@@ -87,25 +87,21 @@ export function UserHero({ userId, avatarUrl, avatarMxc, presence }: UserHeroPro
</Avatar>
</AvatarPresence>
{viewAvatar && (
<Overlay open backdrop={<OverlayBackdrop />}>
<OverlayCenter>
<FocusTrap
focusTrapOptions={{
initialFocus: false,
onDeactivate: () => setViewAvatar(undefined),
clickOutsideDeactivates: true,
escapeDeactivates: stopPropagation,
}}
>
<Modal size="500" onContextMenu={(evt: React.MouseEvent) => evt.stopPropagation()}>
<ImageViewer
src={viewAvatar}
alt={userId}
requestClose={() => setViewAvatar(undefined)}
/>
</Modal>
</FocusTrap>
</OverlayCenter>
<Overlay open backdrop={null}>
<FocusTrap
focusTrapOptions={{
initialFocus: false,
onDeactivate: () => setViewAvatar(undefined),
clickOutsideDeactivates: true,
escapeDeactivates: stopPropagation,
}}
>
<ImageViewer
src={viewAvatar}
alt={userId}
requestClose={() => setViewAvatar(undefined)}
/>
</FocusTrap>
</Overlay>
)}
</div>