previewzoomoverlay
This commit is contained in:
@@ -1,5 +1,4 @@
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import React, { useCallback, useEffect, useMemo, useRef, useState } from 'react';
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import { createPortal } from 'react-dom';
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import {
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DownloadIcon,
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EditIcon,
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@@ -15,6 +14,7 @@ import { formatFileSize } from '../utils/format';
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import { resolveDocumentAssetUrl, createAssetView } from '../asset_manager';
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import { useAssetNavigator } from '../hooks/useAssetNavigator';
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import { CORRESPONDENT_ROLES } from '../constants/correspondents';
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import PreviewZoomOverlay from './PreviewZoomOverlay';
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const MAX_PREVIEW_STACK_ITEMS = 15;
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@@ -351,35 +351,6 @@ const DetailPanel = ({
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const [ocrLoading, setOcrLoading] = useState(false);
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const [ocrError, setOcrError] = useState(null);
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const [zoomedPreview, setZoomedPreview] = useState(null);
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const [zoomNative, setZoomNative] = useState(false);
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const [zoomPan, setZoomPan] = useState({ x: 0, y: 0 });
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const [isZoomDragging, setIsZoomDragging] = useState(false);
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const zoomStageRef = useRef(null);
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const zoomImageMetricsRef = useRef({ naturalWidth: 0, naturalHeight: 0 });
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const zoomDragRef = useRef(null);
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const zoomSkipClickRef = useRef(false);
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const clampPan = useCallback(
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(x, y) => {
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const stage = zoomStageRef.current;
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const { naturalWidth, naturalHeight } = zoomImageMetricsRef.current;
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if (!stage || !naturalWidth || !naturalHeight) {
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return { x: 0, y: 0 };
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}
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const stageRect = stage.getBoundingClientRect();
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if (stageRect.width <= 0 || stageRect.height <= 0) {
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return { x: 0, y: 0 };
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}
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const imageWidth = zoomNative ? naturalWidth : Math.min(naturalWidth, stageRect.width);
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const imageHeight = zoomNative ? naturalHeight : Math.min(naturalHeight, stageRect.height);
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const limitX = Math.max(0, (imageWidth - stageRect.width) / 2);
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const limitY = Math.max(0, (imageHeight - stageRect.height) / 2);
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const clampedX = Math.min(Math.max(x, -limitX), limitX);
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const clampedY = Math.min(Math.max(y, -limitY), limitY);
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return { x: clampedX, y: clampedY };
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},
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[zoomNative],
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);
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useEffect(() => {
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if (!singleDoc) {
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@@ -413,51 +384,6 @@ const DetailPanel = ({
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setZoomedPreview(null);
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}, [selectionKey]);
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useEffect(() => {
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if (!zoomedPreview) {
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setZoomNative(false);
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setZoomPan({ x: 0, y: 0 });
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setIsZoomDragging(false);
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zoomDragRef.current = null;
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zoomSkipClickRef.current = false;
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}
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}, [zoomedPreview]);
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useEffect(() => {
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zoomSkipClickRef.current = false;
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if (zoomNative) {
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setZoomPan((current) => {
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const clamped = clampPan(current.x, current.y);
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if (clamped.x === current.x && clamped.y === current.y) {
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return current;
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}
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return clamped;
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});
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} else {
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setZoomPan({ x: 0, y: 0 });
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setIsZoomDragging(false);
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zoomDragRef.current = null;
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}
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}, [zoomNative, clampPan]);
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useEffect(() => {
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if (!zoomNative) {
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return undefined;
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}
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const handleResize = () => {
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setZoomPan((current) => {
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const clamped = clampPan(current.x, current.y);
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if (clamped.x === current.x && clamped.y === current.y) {
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return current;
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}
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return clamped;
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});
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};
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window.addEventListener('resize', handleResize);
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handleResize();
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return () => window.removeEventListener('resize', handleResize);
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}, [zoomNative, clampPan]);
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const startTitleEdit = useCallback(() => {
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if (!singleDoc) return;
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setTitleEditDocId(singleDoc.id);
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@@ -826,22 +752,10 @@ const DetailPanel = ({
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mode: config.mode,
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docId: config.docId ?? null,
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});
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setZoomNative(false);
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setZoomPan({ x: 0, y: 0 });
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setIsZoomDragging(false);
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zoomDragRef.current = null;
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zoomSkipClickRef.current = false;
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zoomImageMetricsRef.current = { naturalWidth: 0, naturalHeight: 0 };
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}, []);
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const closeZoomPreview = useCallback(() => {
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setZoomedPreview(null);
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setZoomNative(false);
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setZoomPan({ x: 0, y: 0 });
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setIsZoomDragging(false);
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zoomDragRef.current = null;
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zoomSkipClickRef.current = false;
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zoomImageMetricsRef.current = { naturalWidth: 0, naturalHeight: 0 };
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}, []);
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const handleSingleZoom = useCallback(
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@@ -863,160 +777,6 @@ const DetailPanel = ({
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[openZoomPreview, stackTopDocId, topHasPreview],
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);
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const handleZoomImageLoad = useCallback(
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(event) => {
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zoomImageMetricsRef.current = {
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naturalWidth: event.currentTarget.naturalWidth || 0,
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naturalHeight: event.currentTarget.naturalHeight || 0,
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};
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setZoomPan((current) => {
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const clamped = clampPan(current.x, current.y);
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return { x: clamped.x, y: clamped.y };
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});
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},
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[clampPan],
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);
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const handleZoomImageClick = useCallback(
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(event) => {
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event.stopPropagation();
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if (zoomSkipClickRef.current) {
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zoomSkipClickRef.current = false;
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return;
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}
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if (!zoomNative) {
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const stage = zoomStageRef.current;
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const { naturalWidth, naturalHeight } = zoomImageMetricsRef.current;
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if (stage && naturalWidth && naturalHeight) {
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const stageRect = stage.getBoundingClientRect();
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const imageRect = event.currentTarget.getBoundingClientRect();
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const clickX = event.clientX - imageRect.left;
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const clickY = event.clientY - imageRect.top;
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const ratioX = imageRect.width ? clickX / imageRect.width : 0.5;
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const ratioY = imageRect.height ? clickY / imageRect.height : 0.5;
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const focusX = naturalWidth * ratioX;
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const focusY = naturalHeight * ratioY;
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const halfWidth = naturalWidth / 2;
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const halfHeight = naturalHeight / 2;
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const limitX = Math.max(0, (naturalWidth - stageRect.width) / 2);
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const limitY = Math.max(0, (naturalHeight - stageRect.height) / 2);
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let targetPanX = -(focusX - halfWidth);
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let targetPanY = -(focusY - halfHeight);
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targetPanX = Math.min(Math.max(targetPanX, -limitX), limitX);
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targetPanY = Math.min(Math.max(targetPanY, -limitY), limitY);
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setZoomPan({ x: targetPanX, y: targetPanY });
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} else {
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setZoomPan({ x: 0, y: 0 });
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}
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setZoomNative(true);
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} else {
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setZoomNative(false);
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}
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},
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[zoomNative],
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);
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const handleZoomImagePointerDown = useCallback(
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(event) => {
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if (!zoomNative || event.button !== 0) {
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return;
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}
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event.preventDefault();
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zoomSkipClickRef.current = false;
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zoomDragRef.current = {
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pointerId: event.pointerId,
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originX: zoomPan.x,
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originY: zoomPan.y,
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startX: event.clientX,
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startY: event.clientY,
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moved: false,
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};
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event.currentTarget.setPointerCapture(event.pointerId);
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},
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[zoomNative, zoomPan],
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);
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const handleZoomImagePointerMove = useCallback(
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(event) => {
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const drag = zoomDragRef.current;
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if (!drag || drag.pointerId !== event.pointerId) {
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return;
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}
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const deltaX = event.clientX - drag.startX;
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const deltaY = event.clientY - drag.startY;
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if (!drag.moved && (Math.abs(deltaX) > 2 || Math.abs(deltaY) > 2)) {
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drag.moved = true;
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setIsZoomDragging(true);
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}
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if (drag.moved) {
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const clamped = clampPan(drag.originX + deltaX, drag.originY + deltaY);
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setZoomPan((current) =>
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current.x === clamped.x && current.y === clamped.y ? current : clamped,
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);
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}
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},
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[clampPan],
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);
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const endZoomDrag = useCallback(() => {
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zoomDragRef.current = null;
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setIsZoomDragging(false);
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}, []);
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const handleZoomImagePointerUp = useCallback(
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(event) => {
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const drag = zoomDragRef.current;
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if (!drag || drag.pointerId !== event.pointerId) {
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return;
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}
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event.currentTarget.releasePointerCapture(event.pointerId);
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zoomSkipClickRef.current = Boolean(drag.moved);
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endZoomDrag();
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},
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[endZoomDrag],
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);
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const handleZoomImagePointerCancel = useCallback(
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(event) => {
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const drag = zoomDragRef.current;
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if (!drag || drag.pointerId !== event.pointerId) {
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return;
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}
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event.currentTarget.releasePointerCapture(event.pointerId);
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zoomSkipClickRef.current = true;
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endZoomDrag();
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},
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[endZoomDrag],
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);
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const handleZoomStageWheel = useCallback(
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(event) => {
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if (!zoomNative) {
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return;
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}
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const deltaX = Number.isFinite(event.deltaX) ? event.deltaX : 0;
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const deltaY = Number.isFinite(event.deltaY) ? event.deltaY : 0;
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if (!deltaX && !deltaY) {
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return;
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}
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let updated = false;
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setZoomPan((current) => {
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const clamped = clampPan(current.x - deltaX, current.y - deltaY);
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if (clamped.x === current.x && clamped.y === current.y) {
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return current;
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}
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updated = true;
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return clamped;
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});
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if (updated) {
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event.preventDefault();
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event.stopPropagation();
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}
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},
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[zoomNative, clampPan],
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);
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const zoomDisplay = useMemo(() => {
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if (!zoomedPreview) {
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return null;
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@@ -1089,50 +849,6 @@ const DetailPanel = ({
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}
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}, [zoomedPreview, zoomDisplay]);
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const zoomDisplayUrl = zoomDisplay?.url;
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useEffect(() => {
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if (!zoomDisplayUrl) {
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return;
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}
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setZoomPan((current) => {
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const clamped = clampPan(current.x, current.y);
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if (clamped.x === current.x && clamped.y === current.y) {
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return current;
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}
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return clamped;
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});
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}, [zoomDisplayUrl, clampPan]);
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useEffect(() => {
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if (!zoomedPreview) {
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return undefined;
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}
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const handleKeyDown = (event) => {
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if (event.key === 'Escape') {
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setZoomedPreview(null);
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return;
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}
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if (event.key === 'ArrowLeft') {
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event.preventDefault();
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event.stopPropagation();
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if (zoomDisplay?.canGoPrev) {
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zoomDisplay.goPrev?.();
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}
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return;
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}
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if (event.key === 'ArrowRight') {
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event.preventDefault();
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event.stopPropagation();
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if (zoomDisplay?.canGoNext) {
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zoomDisplay.goNext?.();
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}
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}
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};
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window.addEventListener('keydown', handleKeyDown);
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return () => window.removeEventListener('keydown', handleKeyDown);
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}, [zoomedPreview, zoomDisplay]);
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useEffect(() => {
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if (typeof ensureAssetUrl !== 'function') {
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return;
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@@ -1196,38 +912,6 @@ const DetailPanel = ({
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stackPreviewNavigator.canGoNext,
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]);
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const zoomImageStyle = useMemo(() => {
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if (!zoomNative) {
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return {
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cursor: 'zoom-in',
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transform: 'none',
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maxWidth: '95vw',
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maxHeight: '95vh',
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};
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}
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const { naturalWidth, naturalHeight } = zoomImageMetricsRef.current;
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return {
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cursor: isZoomDragging ? 'grabbing' : 'grab',
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width: naturalWidth ? `${naturalWidth}px` : 'auto',
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height: naturalHeight ? `${naturalHeight}px` : 'auto',
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maxWidth: 'none',
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maxHeight: 'none',
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transform: `translate3d(${zoomPan.x}px, ${zoomPan.y}px, 0)`,
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};
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}, [zoomNative, zoomPan.x, zoomPan.y, isZoomDragging]);
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const zoomStageClassName = useMemo(
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() =>
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[
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'preview-zoom__stage',
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zoomNative ? 'preview-zoom__stage--native' : '',
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isZoomDragging ? 'preview-zoom__stage--dragging' : '',
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]
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.filter(Boolean)
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.join(' '),
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[zoomNative, isZoomDragging],
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);
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const renderSingle = () => {
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if (!singleDoc) {
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return <p className="meta">Select a document to view metadata, tags and actions.</p>;
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@@ -1662,70 +1346,11 @@ const DetailPanel = ({
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{selectedCount <= 1 ? renderSingle() : renderBulk()}
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</div>
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</aside>
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{zoomDisplay?.url
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? createPortal(
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<div
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className="preview-zoom-backdrop"
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role="dialog"
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aria-modal="true"
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aria-label="Enlarged document preview"
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onClick={closeZoomPreview}
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>
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<div
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ref={zoomStageRef}
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className={zoomStageClassName}
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onWheel={handleZoomStageWheel}
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>
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<img
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src={zoomDisplay.url}
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alt={zoomDisplay.alt}
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className="preview-zoom__image"
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style={zoomImageStyle}
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onLoad={handleZoomImageLoad}
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onClick={handleZoomImageClick}
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onPointerDown={handleZoomImagePointerDown}
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onPointerMove={handleZoomImagePointerMove}
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onPointerUp={handleZoomImagePointerUp}
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onPointerCancel={handleZoomImagePointerCancel}
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draggable={false}
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/>
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{zoomDisplay.canGoPrev || zoomDisplay.canGoNext ? (
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<div className="preview-zoom__nav">
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<button
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type="button"
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className="preview-zoom__nav-button"
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onClick={(event) => {
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event.stopPropagation();
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if (zoomDisplay.canGoPrev) {
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zoomDisplay.goPrev?.();
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}
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}}
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aria-label="Previous preview"
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disabled={!zoomDisplay.canGoPrev}
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>
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<ArrowLeftIcon />
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</button>
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<button
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type="button"
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className="preview-zoom__nav-button"
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onClick={(event) => {
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event.stopPropagation();
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if (zoomDisplay.canGoNext) {
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zoomDisplay.goNext?.();
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}
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}}
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aria-label="Next preview"
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disabled={!zoomDisplay.canGoNext}
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>
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<ArrowRightIcon />
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</button>
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</div>
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) : null}
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</div>
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</div>,
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document.body,
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)
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: null}
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<PreviewZoomOverlay
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open={Boolean(zoomDisplay?.url)}
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display={zoomDisplay}
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onClose={closeZoomPreview}
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/>
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</>
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);
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};
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