[a11y] Add more fields to semantics API

Add a more fields to semantic nodes for accessibility. This allows flutter and chromium clients to send us info about what's currently onscreen.

Note that this is not meant to be exhaustive, and there will be more CLs addition additonal fields and enum values. In particular this CL does not address most of the issue around scrolling and how we determine which node is currently focused (for various notions of focus).

BUG: 18796

Testing: fx run-test a11y_tests, fx run-test a11y_lib_tests

Change-Id: Ic61f66694dd9a2283b854d6081bf26f76999fb0c
3 files changed
tree: bb7a03ea486c806d176281dfe95d0340cae296df
  1. boards/
  2. build/
  3. bundles/
  4. docs/
  5. examples/
  6. garnet/
  7. peridot/
  8. products/
  9. scripts/
  10. sdk/
  11. src/
  12. third_party/
  13. tools/
  14. zircon/
  15. .clang-format
  16. .clang-tidy
  17. .dir-locals.el
  18. .gitattributes
  19. .gitignore
  20. .gn
  21. .style.yapf
  22. AUTHORS
  23. BUILD.gn
  24. CODE_OF_CONDUCT.md
  25. CONTRIBUTING.md
  26. LICENSE
  27. OWNERS
  28. PATENTS
  29. README.md
  30. rustfmt.toml
README.md

Fuchsia

Pink + Purple == Fuchsia (a new operating system)

What is Fuchsia?

Fuchsia is a modular, capability-based operating system. Fuchsia runs on modern 64-bit Intel and ARM processors.

Fuchsia is an open source project with a code of conduct that we expect everyone who interacts with the project to respect.

How can I build and run Fuchsia?

See Getting Started.

Where can I learn more about Fuchsia?

See fuchsia.dev.