commit ea7ea1287136d52fc60750c896a03d0a9a08f239
author Nektarios Paisios <nektar@chromium.org> Wed Sep 02 11:23:52 2020
committer Commit Bot <commit-bot@chromium.org> Wed Sep 02 11:23:52 2020
tree 3ae27b4cfe9cca1b40fc557162667e439b1c192f
parent 3657d37c39698793046e26d8eb88dda70cc46da9

Attaches intents to accessibility text changed events

When an accessibility text or value changed event is raise, assistive software, such as
VoiceOver and ChromeVox, doesn't really know how the previous text was modified.
The event doesn't specify for example if:
a character has been typed, a new line inserted,
a piece of text has been cut, something was pasted, or
the current selection replaced with a new piece of text.
Assistive software, such as screen readers, need to either monitor key presses, or rely on heuristics to determine what to announce.

This patch adds such information to text and value changed events
through a list of event intents which describe the command that was carried out.

R=dmazzoni@chromium.org, yosin@chromium.org

AX-Relnotes: n/a
Bug: 989156
Change-Id: Ie33cfd73d195086c80883315ee8fef13bdff251e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2214951
Commit-Queue: Nektarios Paisios <nektar@chromium.org>
Auto-Submit: Nektarios Paisios <nektar@chromium.org>
Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Reviewed-by: Yoshifumi Inoue <yosin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#803823}