tree 3c1dd569660b28367df20e8639cc2eac177a78bb
parent 3efd1e90495cd1f0d0ace39c36da817b7daf0fae
author Melba Nuzen <mnuzen@google.com> 1719619168 -0700
committer Android Build Coastguard Worker <android-build-coastguard-worker@google.com> 1726027832 +0000

Send ancestor events for LiveRegion announcements

Prior to this CL, if an ancestor and its descendant both had layout changes, only the descendant would send accessibility events (this was done in aosp/2729277 to minimize number of events sent by Compose).

In the case of a liveRegion activated by a button, if the ancestor value change was triggered by a descendant button being clicked, only the `TYPE_VIEW_CLICKED` event from the descendant was being clicked, even though the ancestor value was also being changed. Without alerting TalkBack that the ancestor value was being changed, LiveRegions were not working properly.

With this fix, `CONTENT_CHANGE_TYPE_SUBTREE` is now sent in addition to `TYPE_VIEW_CLICKED`, fixing the scenario where liveRegion announcements were not being recognized by TalkBack if the change and its trigger were on ancestor/descendant components.

Fixes: 348590026
Test: sendClickedAndChangeSubtree_whenDescendantClicked() and verified with local repro provided in bug
(cherry picked from https://android-review.googlesource.com/q/commit:d2e708a4b92dd375abb47fead572b4308e72dd1e)
Merged-In: I308d5122947ecc3afbf0dbeb0d96f977d655be8a
Change-Id: I308d5122947ecc3afbf0dbeb0d96f977d655be8a