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# Description of Changes Added a new `LinkLayer` component to the PDF viewer that renders clickable overlays for PDF link annotations, enabling both internal page navigation and external URL links. - Created `LinkLayer.tsx` component that extracts link annotations using the EmbedPDF annotation API with fallback to direct PDF document access - Implemented scale-aware positioning to maintain accurate link hotspots at different zoom levels - Added support for internal navigation (GoTo actions) using smooth scrolling and external links (URI actions) opening in new tabs - Integrated accessibility features with proper ARIA labels and keyboard navigation - Modified `LocalEmbedPDF.tsx` to always register the annotation plugin (even when editing is disabled) to enable reading existing link annotations - Updated `ReactRoutingController.java` and test formatting for code style consistency **Key features:** - Multi-source annotation detection (annotation API → document API → page API fallback) - Navigation lock to prevent race conditions - React performance optimizations (useMemo, useCallback) - TypeScript type safety for PDF actions and destinations This does not address support for Attachment links. Sadly, that does not seem to be possible with EmbedPDF <img width="773" height="957" alt="image" src="https://github.com/user-attachments/assets/8a04d15a-79b5-46b6-af8b-3d27246581a7" /> <img width="773" height="957" alt="image" src="https://github.com/user-attachments/assets/eeb39ca7-a114-4bd5-a4eb-9e8a27331297" /> <img width="773" height="957" alt="image" src="https://github.com/user-attachments/assets/1ee6bba3-d233-4a11-bf1a-1b56696265e1" /> <!-- Please provide a summary of the changes, including: - What was changed - Why the change was made - Any challenges encountered Closes #(issue_number) --> --- ## Checklist ### General - [X] I have read the [Contribution Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md) - [ ] I have read the [Stirling-PDF Developer Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md) (if applicable) - [ ] I have read the [How to add new languages to Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md) (if applicable) - [X] I have performed a self-review of my own code - [ ] My changes generate no new warnings ### Documentation - [ ] I have updated relevant docs on [Stirling-PDF's doc repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/) (if functionality has heavily changed) - [ ] I have read the section [Add New Translation Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags) (for new translation tags only) ### Translations (if applicable) - [ ] I ran [`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md) ### UI Changes (if applicable) - [ ] Screenshots or videos demonstrating the UI changes are attached (e.g., as comments or direct attachments in the PR) ### Testing (if applicable) - [X] I have tested my changes locally. Refer to the [Testing Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing) for more details. Signed-off-by: Balázs Szücs <bszucs1209@gmail.com> |
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