Navigator Roadmap

This document is based on the current consensus between implementers of what the core set of features and priorities should be.

Feature Complete Requirements

Navigation between spine items (from the first to the last)
Rendering resources (scroll AND paged)
Support for vertical-writing, RTL/LTR reading directions
Navigate directly to a resource (spine or resources)
Support hyperlinking between resources
Ability to inject CSS and/or JS into resources (XHTML & HTML)
Calculate current location, go to a saved location

Revision 1

Full fixed layout support
- Multiple spreads
- Rendition properties (orientation, page position)
Media Overlays
Preloading, Prerendering
Locators
- Character level precision
- Multiple locators (including CFI)
- Calculate a locator based on a DOM range
- Go to a specific locator

TBD

Footnote & endnotes
Syncing locators
Native support for images, audio& video (not in a webview)
epubReadingSystem Object
Progression in a publication (page or % based)
Annotations & Highlights
TTS
Default stylesheet, rules for applying styles
Event flow model