- I’m editing a file - drawing an annotation;
- quickly switch to another file
- annotationChanged event was never fired
How can i handle this case - when annotationChanged havent fired yet due to Apryse’s embedded timeout, but user has already closed that file?
Hello, I’m AiRon, an automated tech support bot 
While you wait for one of our customer support representatives, I can help you with your question.
It seems you are encountering an issue with the
annotationChanged event not firing immediately due to a possible delay or throttling when switching between files quickly in Apryse’s WebViewer SDK. This can occur if there is a delay in handling the annotation events, which might be due to throttling mechanisms within the SDK to optimize performance.Some things you can try:
- Ensure that the event listener for
annotationChangedis set up correctly and is not being removed when switching files. - Consider using a debounce or throttle mechanism to handle rapid changes and ensure that events are processed in a timely manner.
- Check if the issue persists in both development and production environments, as certain behaviors might differ.
- Implement a cleanup function to handle any pending events when a file is closed or switched.
Here are some resources that might help you:
- Annotation Events - Apryse Documentation: Details about the
annotationChangedevent and its parameters. - Setting up listen/trigger events for real-time collaboration in the client: Information on handling events and collaboration.
- Import/export annotations Database: Learn how to manage annotations effectively with import/export functionalities.
- Custom UI Enhancements to WebViewer with React: Examples of customizing WebViewer in React, which might offer insight into handling events.
Hopefully, this helps you solve your problem while you wait for a human to get back to you.
Hello Ihor,
Thank you for contacting Apryse Forums.
Perhaps, you can wait for the specific event to occur. Try wrapping the event listener in a Promise to wait for the annotationChanged event to fire before closing the file.
Best Regards,
Darian