1688972 - FocusedChild fails when focus is in iframe

Status: RESOLVED FIXED

(Core :: Disability Access APIs, defect, P1)

Description

[Eitan Isaacson [:eeejay]]

Given the following url, with focus on the input
data:text/html,<iframe src="data:text/html,<input>"></iframe>

We get the following results, depending on process topography when calling FocusedChild on the top level doc:

1. Non-e10s: We get the input accessible.
2. e10s: We get null because the unique id passed back in RecvFocusChild won't resolve in the sending DocAccessibleParent since it is a member of a child doc.
3. fission: We get null because no focused accessible is returned by the focus manager when focus is in a child doc.

We need to make all of these cases work like the non-e10s case.

A note about FocusedChild: For some archaic reason accessibles are expected to return a direct focused child, or null. Document accessibles (including child docs) return a focused descendant. This API design choice is out of the scope of this bug.

Comment 1

[Eitan Isaacson [:eeejay]]

Attachment: Bug 1688972 - Make FocusedChild work across document/process boundaries. r?Jamie!

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/4572c1ba670a
Make FocusedChild work across document/process boundaries. r=Jamie

Comment 5

[Dorel Luca [:dluca]]

Backed out changeset 4572c1ba670a (bug 1688972) for Browser-chrome failures in accessible/tests/browser/fission/browser_take_focus.js. CLOSED TREE

Log:
https://treeherder.mozilla.org/logviewer?job_id=328247553&repo=autoland&lineNumber=3502

Push with failures:
https://treeherder.mozilla.org/jobs?repo=autoland&group_state=expanded&selectedTaskRun=M-ic0V78TfCZw83t6Xmg3Q.0&revision=4572c1ba670a3ddb159cf37ba9684fb6055f260e

Backout:
https://hg.mozilla.org/integration/autoland/rev/6b095a7cc6c6d7718adf0d3e6b7b31bef96441cc

Comment 6

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/b3216f1cfd1f
Make FocusedChild work across document/process boundaries. r=Jamie

Comment 7

[Atila Butkovits]

https://hg.mozilla.org/mozilla-central/rev/b3216f1cfd1f