Enhanced EnvelopeViewer with a thumbnail sidebar for page previews and a resizable splitter (150px-400px range) for improved navigation. Updated layout to use a flexbox design for side-by-side thumbnails and PDF canvas.
Externalized CSS for maintainability and added responsive behavior for mobile devices. Improved Blazor lifecycle handling with `firstRender` checks and sequential thumbnail rendering. Addressed known issues like vertical alignment and infinite render loops.
Introduced localStorage persistence for user preferences and enhanced zoom/navigation interactivity with global mouse events.
Updated EnvelopeViewer with layout fixes, unlimited zoom, and thumbnail navigation. Added global mouse wheel zoom (`Ctrl+Wheel`) and retry logic for thumbnail rendering. Refactored layout for responsiveness and documented a critical issue causing a blank screen and infinite render loop. Proposed next steps for resolution and provided a temporary workaround using the legacy ReportViewer.
Introduced a new EnvelopeViewer component (`EnvelopeViewer.razor`)
to replace the legacy ReportViewer for non-signing workflows.
The new viewer is based on PDF.js and provides a modern,
lightweight, and responsive user experience.
Added `pdf-viewer.js` to handle PDF rendering, zoom, pagination,
and mouse wheel control, integrated with Blazor via JSInterop.
Externalized styles to `envelope-viewer.css` with a modern
glassmorphism design.
Enhanced user experience with unlimited zoom, global mouse
wheel zoom (`Ctrl+Wheel`), and responsive design. Fixed issues
like scroll behavior and canvas size restrictions.
Updated `COPILOT_CONTEXT_EN.md` to document the new
EnvelopeViewer, its architecture, and its advantages over the
legacy ReportViewer. Added external dependencies for PDF.js
via CDN and updated project history to reflect these changes.
Enhanced documentation for the EnvelopeGenerator system:
- Added purpose section describing its functionality as a digital document signing system.
- Documented solution structure, listing projects, frameworks, and purposes.
- Highlighted key files in `ReceiverUI` and `API` with their roles.
- Explained `AnnotationDto` coordinate system and unit conversions.
- Detailed the signing flow in `ReceiverUI`, including page load, signature popup, and export steps.
- Documented JavaScript checkbox overlay logic for annotations.
- Provided a breakdown of `StampSignaturesOnPdf` using iText7.
- Described `BuildFreshBaseReport` behavior in real and dev modes.
- Listed NuGet packages with versions and purposes.
- Added "Mistakes History" to prevent repeated errors.
- Clarified why DevExpress X.509 signing article does not apply.
- Summarized development sessions in a change log.
