When performing an accessibilty scroll, the default scroll distance is
kSmallScrollIncrement (40 pixels). This value is then multiplied by the
system scale factor, as set in the display settings drop-down in the Windows
system settings.
When we imported the AX tree from Chromium, we hard-coded the system
scale factor to 1.0 due to a fair amount of abstraction of the scale
factor lookup in their code. This fills it back in.
Issue: https://github.com/flutter/flutter/issues/78798
BUG: https://bugs.fuchsia.dev/p/fuchsia/issues/detail?id=87813
As part of the fuchsia platform versioning we are stamping all of
our packages with a target api level which can be read by our assembly
tools. We would like to be able to update the target api level with a
roller so I added a file which can is read by the gn tool. I am open
to suggestions about how to change this is we do not want to add
file read calls to our gn script.
The old code stripped the USB hid usage page value from the Fuchsia
key. It shouldn't be doing that. This change fixes the issue,
and adds tests that rely on the key constants to verify that the
change indeed does what it is supposed to do.
In the process of fixing this, filed a few known issues and marked them
as TODO. These issues should be handled in separate PRs.
Fixes: https://github.com/flutter/flutter/issues/93890
Adds AddSemanticsNodeUpdateWithChildren, which tests that the native
tree of IAccessible COM objects is an accurate representation of the
platform-agnostic accessibility tree.
Issue: https://github.com/flutter/flutter/issues/77838
* Win32 a11y bridge and platform node delegates
This is the third in a series of patches adding accessibility support
for the Windows embedder. This patch wires in the Accessibility bridge,
and lands the core structure of the Windows FlutterPlatformNodeDelegate
and AccessibilityBridgeDelegate classes, including:
* Instantiating the AccessibilityBridge when the semantics tree is
enabled.
* Creating FlutterPlatformNodeDelegate wrappers for semantics tree
nodes.
* Handling custom action updates.
* Building and updating the accessibility tree on semantics updates.
* Returning the native IAccessible objects when queried.
Breaking this out so that the follow-up patches can be reviewed and
landed in smaller, independent chunks.
Issue: https://github.com/flutter/flutter/issues/77838
Issue: https://github.com/flutter/flutter/issues/93928
Previously, we'd mocked out UpdateSemanticsEnabled using a simple
lambda. Due to the embedder API's C ABI, we were unable to make use of
lambda captures. This patch instead uses MOCK_ENGINE_PROC so we can make
the test variable a local and rely on lambda capture.
Issue: https://github.com/flutter/flutter/issues/77838
Helper functions first, then callbacks/implementations, then public functions.
Add function comments.
Use consistent function naming.
Remove unnecessary protoypes.
Make a function static that wasn't.
