Martin Robinson 12e5d1b05e libservo: Unify notifications to the embedder that input events are handled (#39720) ...

Servo currently has three ways of notifying the embedder that input
events have been processed.

1. `WebViewDelegate::notify_keyboard_event`: This is used to implement
   overridable keybindings in servoshell. It notifies the embedder when
   a keyboard event has been processed, but not "handled" by the engine.
2. WebDriver's command message senders and receivers, this is used to
   let WebDriver wait until events have been handled to continue with
   script execution.
3. Touch event processing notifications: This is used to serialize touch
   event processing.

This change unifies the first two things with a new
`WebViewDelegate::notify_input_event_handled` API. This API informs the
embedder (via a generated id) that an input event has finished
processing and what the result of the processing was.

This allows embedders to do other things with events once they have been
processed. For example, embedders might want to chain unconsumed events
up to parent widgets or to add support for overridable keybindings.

As part of this the `canceled` flag in script's `Event` data structure
is turned into a `bitflags` mirror of the new API type to describe the
result of event handling.

Testing: This shouldn't change observable behavior and is thus covered
by existing tests.
The new API is consumed by servoshell, which uses it for tests.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>

2025-10-10 07:48:06 +00:00

..

Cargo.toml

script: Use CSP sandboxing flags for <iframe> and pass them to child Documents (#39610)

2025-10-06 17:23:03 +00:00

lib.rs

libservo: Unify notifications to the embedder that input events are handled (#39720)

2025-10-10 07:48:06 +00:00