Enhance signature handling and annotation features
- Added dependency injection for `AnnotationService`, `DocumentService`, and `AuthService` in `ReportViewer.razor`. - Improved signature button logic with dynamic appearance and feedback. - Introduced annotation checkbox overlays for marking signature fields. - Refactored signature saving and application logic into `SaveSignatureAsync` and `SubmitSignaturesAsync`. - Added `BuildFreshBaseReport` and `AddAnnotationPlaceholders` for dynamic report creation. - Implemented annotation-specific signature placement with `AddSignatureAtAnnotation`. - Enhanced state management for annotations and signature overlays. - Updated `app.css` with styles for annotation checkboxes. - Added cache-control headers and versioned JavaScript in `index.html`. - Improved `receiver-signature.js` with annotation checkbox management, optimized signature pad logic, and debugging utilities. - Performed general code cleanup and optimization for maintainability.
This commit is contained in:
@@ -1,221 +1,337 @@
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window.receiverSignature = (() => {
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const pads = new Map();
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// ?? State ???????????????????????????????????????????????????????????????
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const pads = new Map();
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const typedSignatures = new Map();
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const imageSignatures = new Map();
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const overlayButtons = new Map(); // annotationId -> { btn, signed }
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let _dotNetRef = null;
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function getPosition(canvas, event) {
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const rect = canvas.getBoundingClientRect();
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const source = event.touches && event.touches.length ? event.touches[0] : event;
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return {
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x: (source.clientX - rect.left) * (canvas.width / rect.width),
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y: (source.clientY - rect.top) * (canvas.height / rect.height)
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// DevExpress Blazor Report Viewer selectors (confirmed via debugDumpViewerDom)
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const PAGE_IMG_SEL = '.dxbrv-report-preview-content-img';
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const SCROLL_CONTAINER_SEL = '.dxbrv-surface-wrapper';
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const VIEWER_WRAPPER_SEL = '.receiver-viewer-wrapper';
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// DX report coordinate space (1/100 inch, A4)
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const DX_PAGE_WIDTH = 827.0;
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const DX_PAGE_HEIGHT = 1169.0;
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// Signature field size in DX units
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const SIG_WIDTH_DX = 230.0;
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const SIG_HEIGHT_DX = 154.0;
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// ?? Annotation Checkboxes ????????????????????????????????????????????????
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// Active install context — holds everything needed to reposition on resize/scroll
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let _installCtx = null;
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function installAnnotationCheckboxes(annotations, checkedIds, dotNetRef) {
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_dotNetRef = dotNetRef;
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// Tear down previous install completely
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_teardownCheckboxes();
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if (!annotations || annotations.length === 0) return;
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const ctx = {
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annotations,
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checkedIds: new Set(Array.isArray(checkedIds) ? checkedIds : []),
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scrollEl: null,
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pageEls: [],
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resizeObs: null,
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onScroll: null,
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onResize: null,
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resizeTimer: null,
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};
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_installCtx = ctx;
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_waitForCheckboxPages(ctx);
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}
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function clearCanvas(canvas) {
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canvas.getContext('2d').clearRect(0, 0, canvas.width, canvas.height);
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function _teardownCheckboxes() {
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document.querySelectorAll('.annot-sig-cb-wrapper').forEach(el => el.remove());
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overlayButtons.clear();
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if (!_installCtx) return;
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const ctx = _installCtx;
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if (ctx.resizeObs) { ctx.resizeObs.disconnect(); ctx.resizeObs = null; }
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if (ctx.scrollEl && ctx.onScroll) ctx.scrollEl.removeEventListener('scroll', ctx.onScroll);
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if (ctx.onResize) window.removeEventListener('resize', ctx.onResize);
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if (ctx.resizeTimer) clearTimeout(ctx.resizeTimer);
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_installCtx = null;
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}
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function _waitForCheckboxPages(ctx) {
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const wrapper = document.querySelector(VIEWER_WRAPPER_SEL);
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if (!wrapper) return;
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if (!_tryInstallCheckboxes(ctx)) {
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const observer = new MutationObserver(() => {
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if (_tryInstallCheckboxes(ctx)) observer.disconnect();
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});
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observer.observe(wrapper, { childList: true, subtree: true });
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setTimeout(() => observer.disconnect(), 15000);
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}
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}
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function _tryInstallCheckboxes(ctx) {
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const scrollEl = document.querySelector(SCROLL_CONTAINER_SEL);
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if (!scrollEl) return false;
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const pageEls = Array.from(document.querySelectorAll(PAGE_IMG_SEL));
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if (pageEls.length === 0) return false;
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if (getComputedStyle(scrollEl).position === 'static')
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scrollEl.style.position = 'relative';
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ctx.scrollEl = scrollEl;
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ctx.pageEls = pageEls;
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// Initial render
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_renderAllCheckboxes(ctx);
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// ResizeObserver — watches every page image for size changes (zoom in/out)
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const ro = new ResizeObserver(() => _repositionAll(ctx));
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pageEls.forEach(el => ro.observe(el));
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ctx.resizeObs = ro;
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// Scroll — reposition when user scrolls the viewer
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ctx.onScroll = () => _repositionAll(ctx);
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scrollEl.addEventListener('scroll', ctx.onScroll, { passive: true });
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// Window resize — debounced 60 ms
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ctx.onResize = () => {
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if (ctx.resizeTimer) clearTimeout(ctx.resizeTimer);
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ctx.resizeTimer = setTimeout(() => _repositionAll(ctx), 60);
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};
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window.addEventListener('resize', ctx.onResize, { passive: true });
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return true;
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}
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function _repositionAll(ctx) {
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if (!ctx || !ctx.scrollEl) return;
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const scrollEl = ctx.scrollEl;
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const pageEls = Array.from(document.querySelectorAll(PAGE_IMG_SEL)); // re-query in case DOM changed
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if (pageEls.length === 0) return;
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const scrollRect = scrollEl.getBoundingClientRect();
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ctx.annotations.forEach(ann => {
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const wrapper = document.querySelector(`.annot-sig-cb-wrapper[data-annot-id="${ann.id}"]`);
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if (!wrapper) return;
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const pageEl = pageEls[(ann.page || 1) - 1] ?? pageEls[pageEls.length - 1];
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if (!pageEl) return;
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const pageRect = pageEl.getBoundingClientRect();
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if (pageRect.width === 0 || pageRect.height === 0) return;
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const scaleX = pageRect.width / DX_PAGE_WIDTH;
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const scaleY = pageRect.height / DX_PAGE_HEIGHT;
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const absLeft = pageRect.left - scrollRect.left + scrollEl.scrollLeft + (ann.x || 0) * scaleX;
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const absTop = pageRect.top - scrollRect.top + scrollEl.scrollTop + (ann.y || 0) * scaleY;
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const boxW = SIG_WIDTH_DX * scaleX;
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const boxH = SIG_HEIGHT_DX * scaleY;
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wrapper.style.left = Math.round(absLeft) + 'px';
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wrapper.style.top = Math.round(absTop) + 'px';
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wrapper.style.width = Math.round(boxW) + 'px';
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wrapper.style.height = Math.round(boxH) + 'px';
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});
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}
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function _renderAllCheckboxes(ctx) {
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const scrollEl = ctx.scrollEl;
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const pageEls = ctx.pageEls;
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const scrollRect = scrollEl.getBoundingClientRect();
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ctx.annotations.forEach(ann => {
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const pageEl = pageEls[(ann.page || 1) - 1] ?? pageEls[pageEls.length - 1];
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if (!pageEl) return;
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const pageRect = pageEl.getBoundingClientRect();
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if (pageRect.width === 0 || pageRect.height === 0) return;
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const scaleX = pageRect.width / DX_PAGE_WIDTH;
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const scaleY = pageRect.height / DX_PAGE_HEIGHT;
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const absLeft = pageRect.left - scrollRect.left + scrollEl.scrollLeft + (ann.x || 0) * scaleX;
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const absTop = pageRect.top - scrollRect.top + scrollEl.scrollTop + (ann.y || 0) * scaleY;
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const boxW = SIG_WIDTH_DX * scaleX;
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const boxH = SIG_HEIGHT_DX * scaleY;
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const isChecked = ctx.checkedIds.has(ann.id);
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_createCheckboxOverlay(ann.id, scrollEl, absLeft, absTop, boxW, boxH, isChecked);
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});
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}
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function _createCheckboxOverlay(annotationId, container, left, top, width, height, isChecked) {
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const wrapper = document.createElement('div');
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wrapper.className = 'annot-sig-cb-wrapper' + (isChecked ? ' annot-sig-cb-wrapper--checked' : '');
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wrapper.setAttribute('data-annot-id', String(annotationId));
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Object.assign(wrapper.style, {
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position: 'absolute',
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left: Math.round(left) + 'px',
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top: Math.round(top) + 'px',
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width: Math.round(width) + 'px',
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height: Math.round(height) + 'px',
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zIndex: '9999',
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cursor: 'pointer',
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boxSizing: 'border-box',
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});
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const cb = document.createElement('input');
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cb.type = 'checkbox';
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cb.checked = isChecked;
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cb.className = 'annot-sig-cb';
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cb.setAttribute('aria-label', 'Unterschriftsfeld bestaetigen');
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const label = document.createElement('span');
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label.className = 'annot-sig-cb__label';
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label.textContent = isChecked ? '\u2713 Bestaetigt' : '\u270e Hier unterschreiben';
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wrapper.appendChild(cb);
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wrapper.appendChild(label);
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wrapper.addEventListener('click', (e) => {
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if (e.target !== cb) cb.checked = !cb.checked;
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const checked = cb.checked;
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wrapper.classList.toggle('annot-sig-cb-wrapper--checked', checked);
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label.textContent = checked ? '\u2713 Bestaetigt' : '\u270e Hier unterschreiben';
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if (_installCtx) {
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if (checked) _installCtx.checkedIds.add(annotationId);
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else _installCtx.checkedIds.delete(annotationId);
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}
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if (_dotNetRef)
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_dotNetRef.invokeMethodAsync('OnAnnotationToggled', annotationId, checked);
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});
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container.appendChild(wrapper);
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overlayButtons.set(annotationId, { btn: wrapper, signed: isChecked });
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}
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function debugDumpViewerDom() {
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const wrapper = document.querySelector(VIEWER_WRAPPER_SEL);
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if (!wrapper) { console.warn('[annot] .receiver-viewer-wrapper not found'); return; }
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console.group('[annot] viewer DOM snapshot');
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const cs = new Set();
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wrapper.querySelectorAll('*').forEach(el => el.classList.forEach(c => cs.add(c)));
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console.log('classes:', [...cs].sort().join(', '));
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console.log('scroll container:', document.querySelector(SCROLL_CONTAINER_SEL));
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console.log('page images:', document.querySelectorAll(PAGE_IMG_SEL));
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console.groupEnd();
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}
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// ?? Signature Pad ???????????????????????????????????????????????????????
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function _pos(canvas, event) {
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const r = canvas.getBoundingClientRect();
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const s = (event.touches && event.touches.length) ? event.touches[0] : event;
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return { x: (s.clientX - r.left) * (canvas.width / r.width), y: (s.clientY - r.top) * (canvas.height / r.height) };
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}
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function _clear(canvas) { canvas.getContext('2d').clearRect(0, 0, canvas.width, canvas.height); }
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function initialize(canvasId) {
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const canvas = document.getElementById(canvasId);
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if (!canvas || pads.has(canvasId))
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return;
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const context = canvas.getContext('2d');
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context.lineWidth = 2.5;
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context.lineCap = 'round';
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context.lineJoin = 'round';
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context.strokeStyle = '#111';
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if (!canvas || pads.has(canvasId)) return;
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const ctx = canvas.getContext('2d');
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ctx.lineWidth = 2.5; ctx.lineCap = 'round'; ctx.lineJoin = 'round'; ctx.strokeStyle = '#111';
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const state = { drawing: false, hasSignature: false };
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pads.set(canvasId, state);
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const start = event => {
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event.preventDefault();
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const pos = getPosition(canvas, event);
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state.drawing = true;
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context.beginPath();
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context.moveTo(pos.x, pos.y);
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};
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const move = event => {
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if (!state.drawing)
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return;
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event.preventDefault();
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const pos = getPosition(canvas, event);
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context.lineTo(pos.x, pos.y);
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context.stroke();
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state.hasSignature = true;
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};
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const end = event => {
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if (!state.drawing)
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return;
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event.preventDefault();
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state.drawing = false;
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};
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const start = e => { e.preventDefault(); const p = _pos(canvas, e); state.drawing = true; ctx.beginPath(); ctx.moveTo(p.x, p.y); };
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const move = e => { if (!state.drawing) return; e.preventDefault(); const p = _pos(canvas, e); ctx.lineTo(p.x, p.y); ctx.stroke(); state.hasSignature = true; };
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const end = e => { if (!state.drawing) return; e.preventDefault(); state.drawing = false; };
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canvas.addEventListener('mousedown', start);
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canvas.addEventListener('mousemove', move);
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window.addEventListener('mouseup', end);
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canvas.addEventListener('touchstart', start, { passive: false });
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canvas.addEventListener('touchmove', move, { passive: false });
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canvas.addEventListener('touchend', end, { passive: false });
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canvas.addEventListener('touchmove', move, { passive: false });
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canvas.addEventListener('touchend', end, { passive: false });
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}
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function initializeTyped(canvasId) {
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const canvas = document.getElementById(canvasId);
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if (!canvas || typedSignatures.has(canvasId))
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return;
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|
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if (!canvas || typedSignatures.has(canvasId)) return;
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typedSignatures.set(canvasId, { hasSignature: false });
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}
|
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|
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function initializeImage(inputId, canvasId) {
|
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const input = document.getElementById(inputId);
|
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const input = document.getElementById(inputId);
|
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const canvas = document.getElementById(canvasId);
|
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if (!input || !canvas || imageSignatures.has(canvasId))
|
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return;
|
||||
|
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if (!input || !canvas || imageSignatures.has(canvasId)) return;
|
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const state = { hasSignature: false };
|
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imageSignatures.set(canvasId, state);
|
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|
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input.addEventListener('change', () => {
|
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const file = input.files && input.files.length ? input.files[0] : null;
|
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if (!file || !file.type.startsWith('image/')) {
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clearCanvas(canvas);
|
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state.hasSignature = false;
|
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return;
|
||||
}
|
||||
|
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const file = input.files && input.files[0];
|
||||
if (!file || !file.type.startsWith('image/')) { _clear(canvas); state.hasSignature = false; return; }
|
||||
const reader = new FileReader();
|
||||
reader.onload = () => {
|
||||
const image = new Image();
|
||||
image.onload = () => {
|
||||
const context = canvas.getContext('2d');
|
||||
clearCanvas(canvas);
|
||||
|
||||
const padding = 10;
|
||||
const maxWidth = canvas.width - padding * 2;
|
||||
const maxHeight = canvas.height - padding * 2;
|
||||
const scale = Math.min(maxWidth / image.width, maxHeight / image.height, 1);
|
||||
const width = image.width * scale;
|
||||
const height = image.height * scale;
|
||||
const x = (canvas.width - width) / 2;
|
||||
const y = (canvas.height - height) / 2;
|
||||
|
||||
context.drawImage(image, x, y, width, height);
|
||||
const img = new Image();
|
||||
img.onload = () => {
|
||||
const ctx = canvas.getContext('2d'); _clear(canvas);
|
||||
const p = 10, mw = canvas.width - p * 2, mh = canvas.height - p * 2;
|
||||
const s = Math.min(mw / img.width, mh / img.height, 1);
|
||||
ctx.drawImage(img, (canvas.width - img.width * s) / 2, (canvas.height - img.height * s) / 2, img.width * s, img.height * s);
|
||||
state.hasSignature = true;
|
||||
};
|
||||
image.src = reader.result;
|
||||
img.src = reader.result;
|
||||
};
|
||||
reader.readAsDataURL(file);
|
||||
});
|
||||
}
|
||||
|
||||
function clear(canvasId) {
|
||||
const canvas = document.getElementById(canvasId);
|
||||
const state = pads.get(canvasId);
|
||||
if (!canvas || !state)
|
||||
return;
|
||||
|
||||
clearCanvas(canvas);
|
||||
state.hasSignature = false;
|
||||
const c = document.getElementById(canvasId); const s = pads.get(canvasId);
|
||||
if (c && s) { _clear(c); s.hasSignature = false; }
|
||||
}
|
||||
|
||||
function clearTyped(canvasId) {
|
||||
const canvas = document.getElementById(canvasId);
|
||||
const state = typedSignatures.get(canvasId);
|
||||
if (!canvas || !state)
|
||||
return;
|
||||
|
||||
clearCanvas(canvas);
|
||||
state.hasSignature = false;
|
||||
const c = document.getElementById(canvasId); const s = typedSignatures.get(canvasId);
|
||||
if (c && s) { _clear(c); s.hasSignature = false; }
|
||||
}
|
||||
|
||||
function clearImage(inputId, canvasId) {
|
||||
const input = document.getElementById(inputId);
|
||||
const canvas = document.getElementById(canvasId);
|
||||
const state = imageSignatures.get(canvasId);
|
||||
if (!canvas || !state)
|
||||
return;
|
||||
|
||||
if (input)
|
||||
input.value = '';
|
||||
|
||||
clearCanvas(canvas);
|
||||
state.hasSignature = false;
|
||||
const inp = document.getElementById(inputId); const c = document.getElementById(canvasId); const s = imageSignatures.get(canvasId);
|
||||
if (c && s) { if (inp) inp.value = ''; _clear(c); s.hasSignature = false; }
|
||||
}
|
||||
|
||||
function renderTypedSignature(canvasId, text, fontFamily) {
|
||||
const canvas = document.getElementById(canvasId);
|
||||
const state = typedSignatures.get(canvasId);
|
||||
if (!canvas || !state)
|
||||
return;
|
||||
|
||||
const value = (text || '').trim();
|
||||
clearCanvas(canvas);
|
||||
|
||||
if (!value) {
|
||||
state.hasSignature = false;
|
||||
return;
|
||||
}
|
||||
|
||||
const context = canvas.getContext('2d');
|
||||
const maxWidth = canvas.width - 30;
|
||||
let fontSize = 54;
|
||||
|
||||
do {
|
||||
context.font = `italic ${fontSize}px ${fontFamily || 'cursive'}`;
|
||||
fontSize -= 2;
|
||||
} while (context.measureText(value).width > maxWidth && fontSize > 24);
|
||||
|
||||
context.fillStyle = '#111';
|
||||
context.textBaseline = 'middle';
|
||||
context.textAlign = 'center';
|
||||
context.fillText(value, canvas.width / 2, canvas.height / 2);
|
||||
const canvas = document.getElementById(canvasId); const state = typedSignatures.get(canvasId);
|
||||
if (!canvas || !state) return;
|
||||
const value = (text || '').trim(); _clear(canvas);
|
||||
if (!value) { state.hasSignature = false; return; }
|
||||
const ctx = canvas.getContext('2d'); let fs = 54;
|
||||
do { ctx.font = 'italic ' + fs + 'px ' + (fontFamily || 'cursive'); fs -= 2; }
|
||||
while (ctx.measureText(value).width > canvas.width - 30 && fs > 24);
|
||||
ctx.fillStyle = '#111'; ctx.textBaseline = 'middle'; ctx.textAlign = 'center';
|
||||
ctx.fillText(value, canvas.width / 2, canvas.height / 2);
|
||||
state.hasSignature = true;
|
||||
}
|
||||
|
||||
function getDataUrl(canvasId) {
|
||||
const canvas = document.getElementById(canvasId);
|
||||
const state = pads.get(canvasId);
|
||||
if (!canvas || !state || !state.hasSignature)
|
||||
return null;
|
||||
|
||||
return canvas.toDataURL('image/png');
|
||||
}
|
||||
|
||||
function getTypedDataUrl(canvasId) {
|
||||
const canvas = document.getElementById(canvasId);
|
||||
const state = typedSignatures.get(canvasId);
|
||||
if (!canvas || !state || !state.hasSignature)
|
||||
return null;
|
||||
|
||||
return canvas.toDataURL('image/png');
|
||||
}
|
||||
|
||||
function getImageDataUrl(canvasId) {
|
||||
const canvas = document.getElementById(canvasId);
|
||||
const state = imageSignatures.get(canvasId);
|
||||
if (!canvas || !state || !state.hasSignature)
|
||||
return null;
|
||||
|
||||
return canvas.toDataURL('image/png');
|
||||
}
|
||||
function getDataUrl(id) { const c = document.getElementById(id); const s = pads.get(id); return (c && s && s.hasSignature) ? c.toDataURL('image/png') : null; }
|
||||
function getTypedDataUrl(id) { const c = document.getElementById(id); const s = typedSignatures.get(id); return (c && s && s.hasSignature) ? c.toDataURL('image/png') : null; }
|
||||
function getImageDataUrl(id) { const c = document.getElementById(id); const s = imageSignatures.get(id); return (c && s && s.hasSignature) ? c.toDataURL('image/png') : null; }
|
||||
|
||||
// ?? Public API ??????????????????????????????????????????????????????????
|
||||
return {
|
||||
initialize,
|
||||
initializeTyped,
|
||||
initializeImage,
|
||||
clear,
|
||||
clearTyped,
|
||||
clearImage,
|
||||
renderTypedSignature,
|
||||
getDataUrl,
|
||||
getTypedDataUrl,
|
||||
getImageDataUrl
|
||||
installAnnotationCheckboxes: installAnnotationCheckboxes,
|
||||
debugDumpViewerDom: debugDumpViewerDom,
|
||||
initialize: initialize,
|
||||
initializeTyped: initializeTyped,
|
||||
initializeImage: initializeImage,
|
||||
clear: clear,
|
||||
clearTyped: clearTyped,
|
||||
clearImage: clearImage,
|
||||
renderTypedSignature: renderTypedSignature,
|
||||
getDataUrl: getDataUrl,
|
||||
getTypedDataUrl: getTypedDataUrl,
|
||||
getImageDataUrl: getImageDataUrl
|
||||
};
|
||||
})();
|
||||
|
||||
Reference in New Issue
Block a user