Implement flutter/accessibility channel #179484
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This pull request implements the flutter/accessibility channel for the Linux platform. It introduces FlAccessibilityChannel for handling the channel communication and FlAccessibilityHandler to process accessibility events, specifically the 'announce' event. The changes are well-structured and include unit tests for the new functionality.
I've found one critical issue that could lead to a crash due to a missing type check. I've also left a couple of medium-severity comments regarding unused parameters and a potentially unused function pointer declaration. Please address the critical issue and consider the other suggestions for improving code clarity and robustness.
mattkae
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Dec 5, 2025
engine/src/flutter/shell/platform/linux/fl_accessibility_channel.cc
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engine/src/flutter/shell/platform/linux/fl_accessibility_handler_test.cc
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The test is failing as the new announcement signal was added in ATK 2.46 and the sysroot has 2.36. |
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The version of Debian is bullseye (oldoldstable), but is trixie (stable) for riscv builds. Ideally we'd update all the images to trixie. https://chromium.googlesource.com/chromium/src/+/refs/heads/main/build/linux/sysroot_scripts/sysroot_creator.py#24 |
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I don't think we can realistically update to trixie until Chromium does. The tarballs have to be built and uploaded to the chromium servers and it probably doesn't make sense to support this for Flutter before Chromium. I guess we'll have to find a workaround for now :( |
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…10601) Manual roll Flutter from 6a1f5b7f85a4 to e25d71b086d6 (30 revisions) Manual roll requested by [email protected] flutter/flutter@6a1f5b7...e25d71b 2025-12-10 [email protected] Ensure that the engine converts std::filesystem::path objects to UTF-8 strings on Windows (flutter/flutter#179528) 2025-12-10 [email protected] Fix the issue with pinned headers in nested SliverMainAxisGroup. (flutter/flutter#179132) 2025-12-10 [email protected] added onUserInteractionIfError for form (flutter/flutter#175515) 2025-12-10 [email protected] Fixed RenderFlex overflow in RouteObserver Example (flutter/flutter#170980) 2025-12-10 [email protected] Roll Dart SDK from 17749965ec57 to 077062c5e515 (3 revisions) (flutter/flutter#179691) 2025-12-10 [email protected] Manually roll characters (flutter/flutter#179447) 2025-12-10 [email protected] Roll Packages from 338ecd3 to 74a5a53 (4 revisions) (flutter/flutter#179693) 2025-12-10 [email protected] Marks Mac_ios draw_arcs_all_stroke_styles_perf_ios__timeline_summary to be unflaky (flutter/flutter#179669) 2025-12-10 [email protected] Check for a null cached image in SingleFrameCodec::getNextFrame (flutter/flutter#179483) 2025-12-10 [email protected] Roll Fuchsia Linux SDK from _pSztGZvEA3-Ry-GW... to u5vxWTRT0HlxOP5_r... (flutter/flutter#179652) 2025-12-10 [email protected] Implement flutter/accessibility channel (flutter/flutter#179484) 2025-12-10 [email protected] Roll Skia from 82fff05cc621 to e61cc6d073fd (4 revisions) (flutter/flutter#179646) 2025-12-10 [email protected] Make sure that a CupertinoDialogAction doesn't crash in 0x0 environment (flutter/flutter#178956) 2025-12-10 [email protected] Make SettingsChannel configuration queue not static (flutter/flutter#179636) 2025-12-10 [email protected] Make sure that a CupertinoListSection doesn't crash in 0x0 environment (flutter/flutter#179068) 2025-12-10 [email protected] Make sure that a CupertinoFormSection doesn't crash in 0x0 environment (flutter/flutter#179001) 2025-12-10 [email protected] Make sure that a CupertinoMagnifier doesn't crash in 0x0 environment (flutter/flutter#179206) 2025-12-10 [email protected] Make sure that a Tooltip doesn't crash in 0x0 environment (flutter/flutter#178461) 2025-12-10 [email protected] Make sure that a CupertinoSegmentedControl doesn't crash in 0x0 envir… (flutter/flutter#179544) 2025-12-10 [email protected] Make sure that a CupertinoSlider doesn't crash in 0x0 environment (flutter/flutter#179566) 2025-12-10 [email protected] Make sure that a CupertinoPageScaffold doesn't crash in 0x0 environment (flutter/flutter#179245) 2025-12-09 [email protected] Roll Skia from f9e32c28c5c5 to 82fff05cc621 (2 revisions) (flutter/flutter#179641) 2025-12-09 [email protected] Roll Dart SDK from 019cb923bf62 to 17749965ec57 (5 revisions) (flutter/flutter#179640) 2025-12-09 [email protected] Enhance documentation for `LocalHistoryEntry` class (flutter/flutter#179223) 2025-12-09 [email protected] WebParagrah: ellipsis (flutter/flutter#178748) 2025-12-09 [email protected] Update the doc on Google Testing to reflect the current state (flutter/flutter#177187) 2025-12-09 [email protected] [wimp] Initial Impeller on Web implementation. (flutter/flutter#175442) 2025-12-09 [email protected] Relax assertion for adding semantics locale (flutter/flutter#178140) 2025-12-09 [email protected] Fix Scrollbar drag behavior (flutter/flutter#179199) 2025-12-09 [email protected] Roll Skia from 502ee6f2a0d7 to f9e32c28c5c5 (6 revisions) (flutter/flutter#179632) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages Please CC [email protected],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Packages: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md ...
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Fixes #172023