read surrounding text

[eagleoflqj]

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[Copilot]

Pull request overview

This PR adds support for reading and forwarding the client’s surrounding text/selection info from the macOS InputMethodKit layer into the fcitx input context, so fcitx can make better context-dependent decisions (e.g., around selection/caret behavior).

Changes:

• Collect surrounding text + cursor/anchor in Swift and pass them into process_key(...).
• Extend the C++ frontend key event path to accept surrounding text and update InputContext surrounding text state.
• Enable CapabilityFlag::SurroundingText when not in password mode.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/controller.swift	Captures surrounding text/cursor/anchor per key event and forwards them to process_key.
macosfrontend/macosfrontend.swift	Implements getSurroundingText(...) using IMKTextInput APIs.
macosfrontend/macosfrontend.h	Extends keyEvent(...) signature; adds setSurroundingText(...) and cached last values.
macosfrontend/macosfrontend.cpp	Plumbs surrounding text into keyEvent(...), stores it on the input context, and sets SurroundingText capability when appropriate.
macosfrontend/macosfrontend-public.h	Updates the exported process_key(...) signature to include surrounding text + cursor/anchor.

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[Copilot]

Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated 3 comments.