IssueTracker

Basic information

Please provide a descriptive title for your feedback:

Some hooks of BrowserEngineKit need to synchronously fetch data from the render process.

Which area are you seeing an issue with?

Blink-base iOS development

What type of feedback are you reporting?

Suggestion

Description

The documentation states that the BETextInput protocol supports asynchronous operations, but in our tests, we found that hooks like requestTextContextForAutocorrectionWithCompletionHandler: need their callback function completionHandler to be called synchronously; otherwise, the soft keyboard UI gets blocked and becomes unresponsive.

Additionally, the hooks textInteractionGesture:shouldBeginAtPoint: and isPointNearMarkedText: are designed as synchronous interfaces without a completionHandler callback. However, calculating the corresponding view position using the point parameter requires IPC call.

We need a clear plan to continue IME-related works:

1. Apple updates BETextInput implementation
2. Chromium either permits synchronous IPC calls from the Browser process or retrieves data in the Browser process through thread synchronization techniques