How to get the visible text of a bookmarked page in Readium for iOS?

[rami-mustafa]

Hi,

I'm currently working with the Readium SDK in my iOS app that handles reflowable EPUB files. My goal is to retrieve the visible text from the page where a bookmark has been set.

Problem:

When I add a bookmark at a specific position in the EPUB, I would like to retrieve the exact text visible on the screen at that moment. This is important because the layout of the text can change depending on font size, screen orientation, and other factors.

Questions:

1. Is there an official way in Readium for iOS to reliably retrieve the visible text of a page where a bookmark is placed?
2. How can I access the text visible on the current screen, considering the dynamic nature of reflowable EPUB content?
3. Would it be possible to have an API or helper function that returns the visible text for the current page?

Any help or suggestions on how to best achieve this would be greatly appreciated. Thanks in advance!