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Handle the case where a window doesn't have a title set - #191767

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auto-submit[bot] merged 2 commits into
flutter:masterfrom
robert-ancell:linux-null-title
Aug 27, 2026
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auto-submit[bot] merged 2 commits into
flutter:masterfrom
robert-ancell:linux-null-title

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@flutter-dashboard flutter-dashboard Bot added the CICD Run CI/CD label Aug 26, 2026
@robert-ancell
robert-ancell requested a review from mattkae August 26, 2026 01:30
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It looks like this pull request may not have tests. Please make sure to add tests or get an explicit test exemption before merging.

If you are not sure if you need tests, consider this rule of thumb: the purpose of a test is to make sure someone doesn't accidentally revert the fix. Ask yourself, is there anything in your PR that you feel it is important we not accidentally revert back to how it was before your fix?

Reviewers: Read the Tree Hygiene page and make sure this patch meets those guidelines before LGTMing. If you believe this PR qualifies for a test exemption, contact "@test-exemption-reviewer" in the #hackers channel in Discord (don't just cc them here, they won't see it!). The test exemption team is a small volunteer group, so all reviewers should feel empowered to ask for tests, without delegating that responsibility entirely to the test exemption group.

@github-actions github-actions Bot added the framework flutter/packages/flutter repository. See also f: labels. label Aug 26, 2026

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Code Review

This pull request modifies _window_linux.dart to safely handle null pointers in _nativeToString by returning a nullable string and updating getTitle to use a fallback empty string. It also adjusts the formatting of several window controller class declarations. Feedback is provided regarding a formatting change to WindowControllerLinux that exceeds the standard 80-character limit and should be wrapped.

Comment thread packages/flutter/lib/src/widgets/_window_linux.dart

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Sure!

@mattkae mattkae added the autosubmit Merge PR when tree becomes green via auto submit App label Aug 26, 2026
@auto-submit
auto-submit Bot added this pull request to the merge queue Aug 26, 2026
Merged via the queue into flutter:master with commit 76fbda5 Aug 27, 2026
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@flutter-dashboard flutter-dashboard Bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Aug 27, 2026
auto-submit Bot pushed a commit to flutter/packages that referenced this pull request Aug 28, 2026
Roll Flutter from 15d8908addf6 to e8dca90ec9e0 (58 revisions)

flutter/flutter@15d8908...e8dca90

2026-08-27 15619084+vashworth@users.noreply.github.com Terminate existing process before launching with devicectl (flutter/flutter#191885)
2026-08-27 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from qjOQi-zAgu_tADorh... to dDxH8G5cDBP602eyG... (flutter/flutter#191889)
2026-08-27 bkonyi@google.com [flutter_tools] Verify native assets tree-shaking during linking (flutter/flutter#191637)
2026-08-27 30870216+gaaclarke@users.noreply.github.com Denylists b-series powervr from vulkan (flutter/flutter#191808)
2026-08-27 97480502+b-luk@users.noreply.github.com Handle linear and radial gradients in UberSDF (flutter/flutter#190874)
2026-08-27 engine-flutter-autoroll@skia.org Roll Packages from 740f093 to bd3cbc1 (7 revisions) (flutter/flutter#191886)
2026-08-27 jason-simmons@users.noreply.github.com Disable more Windows tests that have been causing CI flakes (flutter/flutter#191822)
2026-08-27 engine-flutter-autoroll@skia.org Roll Skia from d32721369bd8 to 82e972ea84b1 (2 revisions) (flutter/flutter#191880)
2026-08-27 engine-flutter-autoroll@skia.org Roll Skia from 3640b8edd16c to d32721369bd8 (10 revisions) (flutter/flutter#191858)
2026-08-27 154381524+flutteractionsbot@users.noreply.github.com Revert: [AGP 9] Update remaining tests to AGP 9 (flutter/flutter#191863)
2026-08-27 engine-flutter-autoroll@skia.org Roll Fuchsia Test Scripts from 0iCv10IlKfiilEBOU... to 6SXRz6wsA2Zm_rAqP... (flutter/flutter#191852)
2026-08-27 137456488+flutter-pub-roller-bot@users.noreply.github.com Roll pub packages (flutter/flutter#191851)
2026-08-27 46920873+gabrimatic@users.noreply.github.com Refactor FormField build wrappers (flutter/flutter#185795)
2026-08-27 50643541+Mairramer@users.noreply.github.com Make ScrollPhysics reactive by introducing shouldUpdate (flutter/flutter#189664)
2026-08-27 chris@bracken.jp macOS: Fix crash on out-of-bounds text input ranges (flutter/flutter#191780)
2026-08-27 34871572+gmackall@users.noreply.github.com Add HCPP feature flag, and turn it on by default in beta/master (flutter/flutter#190623)
2026-08-27 bkonyi@google.com [tool] Migrate CleanCommand to modular dependency injection (flutter/flutter#190742)
2026-08-26 katelovett@google.com Update triage docs for ecosystem and codelab changes (flutter/flutter#191809)
2026-08-26 jesswon@google.com [AGP 9] Update remaining tests to AGP 9 (flutter/flutter#191824)
2026-08-26 louisehsu@google.com [UIScene] Migrate dev/benchmarks/complex_layout to UIScene lifecycle (flutter/flutter#191619)
2026-08-26 57765714+Vi-debug@users.noreply.github.com Add SliverAppBar showOnScreen semantics test coverage (flutter/flutter#190410)
2026-08-26 95318996+shawnridgeway-google@users.noreply.github.com Add prompt_suggestion icon to list of RTL mirroring icons. (flutter/flutter#191741)
2026-08-26 okorohelijah@google.com Remove bringup for batch 3 (flutter/flutter#191750)
2026-08-26 engine-flutter-autoroll@skia.org Roll Skia from b5465d7b0b77 to 3640b8edd16c (6 revisions) (flutter/flutter#191835)
2026-08-26 louisehsu@google.com Uiscene migrate custom channels views (flutter/flutter#191817)
2026-08-26 matt.boetger@gmail.com Support --[no-]adb-log-filtering CLI option (flutter/flutter#187252)
2026-08-26 engine-flutter-autoroll@skia.org Roll Dart SDK from cb8a4e1a0fbb to cb4c39d067f3 (2 revisions) (flutter/flutter#191825)
2026-08-26 nate.w5687@gmail.com Fix `Navigator.pushNamed<T>()` type checking (flutter/flutter#188148)
2026-08-26 robert.ancell@canonical.com Handle the case where a window doesn't have a title set (flutter/flutter#191767)
2026-08-26 github@alexv525.com [Android] Remove old `InputType` constructor from embedding (flutter/flutter#191244)
2026-08-26 engine-flutter-autoroll@skia.org Roll Skia from 244a6a0f8f92 to b5465d7b0b77 (19 revisions) (flutter/flutter#191810)
2026-08-26 46920873+gabrimatic@users.noreply.github.com Tolerate floating-point rounding in paintImage centerSlice assertion (flutter/flutter#185789)
2026-08-26 30870216+gaaclarke@users.noreply.github.com Fixes translated bounded blurs (flutter/flutter#191615)
2026-08-26 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from MstTWE1RDOT-RnrtH... to qjOQi-zAgu_tADorh... (flutter/flutter#191769)
2026-08-26 136096126+glitchfl@users.noreply.github.com Lerp HSVColor and HSLColor hue along the shortest arc (flutter/flutter#191186)
2026-08-26 116356835+AbdeMohlbi@users.noreply.github.com Fix enum instances comparison to use `equality ==` since dart has the correct behavior now (flutter/flutter#191537)
2026-08-26 30870216+gaaclarke@users.noreply.github.com Switches windows to opengles 3 (flutter/flutter#191516)
2026-08-26 engine-flutter-autoroll@skia.org Roll Dart SDK from 7739e8602bc1 to cb8a4e1a0fbb (1 revision) (flutter/flutter#191784)
2026-08-26 chris@bracken.jp iOS,macOS: Check viewType before creating a platform view (flutter/flutter#191777)
2026-08-26 154381524+flutteractionsbot@users.noreply.github.com Revert: [tool_tests] Remove bringup from Windows tool_tests_commands_2_2 (flutter/flutter#191793)
2026-08-26 kevmoo@users.noreply.github.com refactor(flutter_tools): clean up dead unreferenced declarations (flutter/flutter#191163)
2026-08-26 engine-flutter-autoroll@skia.org Roll Fuchsia GN SDK from a87CbQSWEjkPUK1ZY... to ZsxUUK2SfA-TrNvb8... (flutter/flutter#191763)
2026-08-26 bkonyi@google.com [tool_tests] Remove bringup from Windows tool_tests_commands_2_2 (flutter/flutter#191732)
2026-08-25 36861262+QuncCccccc@users.noreply.github.com Remove legacy gen_defaults analyze checks (flutter/flutter#191629)
2026-08-25 52160996+FMorschel@users.noreply.github.com Refactors `try` to avoid `unawaited_return_in_try_block` case (flutter/flutter#191129)
2026-08-25 engine-flutter-autoroll@skia.org Roll Dart SDK from 8996935d3d0a to 7739e8602bc1 (1 revision) (flutter/flutter#191754)
...
@robert-ancell
robert-ancell deleted the linux-null-title branch August 31, 2026 00:24
victorsanni pushed a commit to victorsanni/packages that referenced this pull request Sep 9, 2026
…r#12660)

Roll Flutter from 15d8908addf6 to e8dca90ec9e0 (58 revisions)

flutter/flutter@15d8908...e8dca90

2026-08-27 15619084+vashworth@users.noreply.github.com Terminate existing process before launching with devicectl (flutter/flutter#191885)
2026-08-27 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from qjOQi-zAgu_tADorh... to dDxH8G5cDBP602eyG... (flutter/flutter#191889)
2026-08-27 bkonyi@google.com [flutter_tools] Verify native assets tree-shaking during linking (flutter/flutter#191637)
2026-08-27 30870216+gaaclarke@users.noreply.github.com Denylists b-series powervr from vulkan (flutter/flutter#191808)
2026-08-27 97480502+b-luk@users.noreply.github.com Handle linear and radial gradients in UberSDF (flutter/flutter#190874)
2026-08-27 engine-flutter-autoroll@skia.org Roll Packages from 740f093 to bd3cbc1 (7 revisions) (flutter/flutter#191886)
2026-08-27 jason-simmons@users.noreply.github.com Disable more Windows tests that have been causing CI flakes (flutter/flutter#191822)
2026-08-27 engine-flutter-autoroll@skia.org Roll Skia from d32721369bd8 to 82e972ea84b1 (2 revisions) (flutter/flutter#191880)
2026-08-27 engine-flutter-autoroll@skia.org Roll Skia from 3640b8edd16c to d32721369bd8 (10 revisions) (flutter/flutter#191858)
2026-08-27 154381524+flutteractionsbot@users.noreply.github.com Revert: [AGP 9] Update remaining tests to AGP 9 (flutter/flutter#191863)
2026-08-27 engine-flutter-autoroll@skia.org Roll Fuchsia Test Scripts from 0iCv10IlKfiilEBOU... to 6SXRz6wsA2Zm_rAqP... (flutter/flutter#191852)
2026-08-27 137456488+flutter-pub-roller-bot@users.noreply.github.com Roll pub packages (flutter/flutter#191851)
2026-08-27 46920873+gabrimatic@users.noreply.github.com Refactor FormField build wrappers (flutter/flutter#185795)
2026-08-27 50643541+Mairramer@users.noreply.github.com Make ScrollPhysics reactive by introducing shouldUpdate (flutter/flutter#189664)
2026-08-27 chris@bracken.jp macOS: Fix crash on out-of-bounds text input ranges (flutter/flutter#191780)
2026-08-27 34871572+gmackall@users.noreply.github.com Add HCPP feature flag, and turn it on by default in beta/master (flutter/flutter#190623)
2026-08-27 bkonyi@google.com [tool] Migrate CleanCommand to modular dependency injection (flutter/flutter#190742)
2026-08-26 katelovett@google.com Update triage docs for ecosystem and codelab changes (flutter/flutter#191809)
2026-08-26 jesswon@google.com [AGP 9] Update remaining tests to AGP 9 (flutter/flutter#191824)
2026-08-26 louisehsu@google.com [UIScene] Migrate dev/benchmarks/complex_layout to UIScene lifecycle (flutter/flutter#191619)
2026-08-26 57765714+Vi-debug@users.noreply.github.com Add SliverAppBar showOnScreen semantics test coverage (flutter/flutter#190410)
2026-08-26 95318996+shawnridgeway-google@users.noreply.github.com Add prompt_suggestion icon to list of RTL mirroring icons. (flutter/flutter#191741)
2026-08-26 okorohelijah@google.com Remove bringup for batch 3 (flutter/flutter#191750)
2026-08-26 engine-flutter-autoroll@skia.org Roll Skia from b5465d7b0b77 to 3640b8edd16c (6 revisions) (flutter/flutter#191835)
2026-08-26 louisehsu@google.com Uiscene migrate custom channels views (flutter/flutter#191817)
2026-08-26 matt.boetger@gmail.com Support --[no-]adb-log-filtering CLI option (flutter/flutter#187252)
2026-08-26 engine-flutter-autoroll@skia.org Roll Dart SDK from cb8a4e1a0fbb to cb4c39d067f3 (2 revisions) (flutter/flutter#191825)
2026-08-26 nate.w5687@gmail.com Fix `Navigator.pushNamed<T>()` type checking (flutter/flutter#188148)
2026-08-26 robert.ancell@canonical.com Handle the case where a window doesn't have a title set (flutter/flutter#191767)
2026-08-26 github@alexv525.com [Android] Remove old `InputType` constructor from embedding (flutter/flutter#191244)
2026-08-26 engine-flutter-autoroll@skia.org Roll Skia from 244a6a0f8f92 to b5465d7b0b77 (19 revisions) (flutter/flutter#191810)
2026-08-26 46920873+gabrimatic@users.noreply.github.com Tolerate floating-point rounding in paintImage centerSlice assertion (flutter/flutter#185789)
2026-08-26 30870216+gaaclarke@users.noreply.github.com Fixes translated bounded blurs (flutter/flutter#191615)
2026-08-26 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from MstTWE1RDOT-RnrtH... to qjOQi-zAgu_tADorh... (flutter/flutter#191769)
2026-08-26 136096126+glitchfl@users.noreply.github.com Lerp HSVColor and HSLColor hue along the shortest arc (flutter/flutter#191186)
2026-08-26 116356835+AbdeMohlbi@users.noreply.github.com Fix enum instances comparison to use `equality ==` since dart has the correct behavior now (flutter/flutter#191537)
2026-08-26 30870216+gaaclarke@users.noreply.github.com Switches windows to opengles 3 (flutter/flutter#191516)
2026-08-26 engine-flutter-autoroll@skia.org Roll Dart SDK from 7739e8602bc1 to cb8a4e1a0fbb (1 revision) (flutter/flutter#191784)
2026-08-26 chris@bracken.jp iOS,macOS: Check viewType before creating a platform view (flutter/flutter#191777)
2026-08-26 154381524+flutteractionsbot@users.noreply.github.com Revert: [tool_tests] Remove bringup from Windows tool_tests_commands_2_2 (flutter/flutter#191793)
2026-08-26 kevmoo@users.noreply.github.com refactor(flutter_tools): clean up dead unreferenced declarations (flutter/flutter#191163)
2026-08-26 engine-flutter-autoroll@skia.org Roll Fuchsia GN SDK from a87CbQSWEjkPUK1ZY... to ZsxUUK2SfA-TrNvb8... (flutter/flutter#191763)
2026-08-26 bkonyi@google.com [tool_tests] Remove bringup from Windows tool_tests_commands_2_2 (flutter/flutter#191732)
2026-08-25 36861262+QuncCccccc@users.noreply.github.com Remove legacy gen_defaults analyze checks (flutter/flutter#191629)
2026-08-25 52160996+FMorschel@users.noreply.github.com Refactors `try` to avoid `unawaited_return_in_try_block` case (flutter/flutter#191129)
2026-08-25 engine-flutter-autoroll@skia.org Roll Dart SDK from 8996935d3d0a to 7739e8602bc1 (1 revision) (flutter/flutter#191754)
...
victorsanni pushed a commit to victorsanni/packages that referenced this pull request Sep 9, 2026
…r#12660)

Roll Flutter from 15d8908addf6 to e8dca90ec9e0 (58 revisions)

flutter/flutter@15d8908...e8dca90

2026-08-27 15619084+vashworth@users.noreply.github.com Terminate existing process before launching with devicectl (flutter/flutter#191885)
2026-08-27 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from qjOQi-zAgu_tADorh... to dDxH8G5cDBP602eyG... (flutter/flutter#191889)
2026-08-27 bkonyi@google.com [flutter_tools] Verify native assets tree-shaking during linking (flutter/flutter#191637)
2026-08-27 30870216+gaaclarke@users.noreply.github.com Denylists b-series powervr from vulkan (flutter/flutter#191808)
2026-08-27 97480502+b-luk@users.noreply.github.com Handle linear and radial gradients in UberSDF (flutter/flutter#190874)
2026-08-27 engine-flutter-autoroll@skia.org Roll Packages from 740f093 to bd3cbc1 (7 revisions) (flutter/flutter#191886)
2026-08-27 jason-simmons@users.noreply.github.com Disable more Windows tests that have been causing CI flakes (flutter/flutter#191822)
2026-08-27 engine-flutter-autoroll@skia.org Roll Skia from d32721369bd8 to 82e972ea84b1 (2 revisions) (flutter/flutter#191880)
2026-08-27 engine-flutter-autoroll@skia.org Roll Skia from 3640b8edd16c to d32721369bd8 (10 revisions) (flutter/flutter#191858)
2026-08-27 154381524+flutteractionsbot@users.noreply.github.com Revert: [AGP 9] Update remaining tests to AGP 9 (flutter/flutter#191863)
2026-08-27 engine-flutter-autoroll@skia.org Roll Fuchsia Test Scripts from 0iCv10IlKfiilEBOU... to 6SXRz6wsA2Zm_rAqP... (flutter/flutter#191852)
2026-08-27 137456488+flutter-pub-roller-bot@users.noreply.github.com Roll pub packages (flutter/flutter#191851)
2026-08-27 46920873+gabrimatic@users.noreply.github.com Refactor FormField build wrappers (flutter/flutter#185795)
2026-08-27 50643541+Mairramer@users.noreply.github.com Make ScrollPhysics reactive by introducing shouldUpdate (flutter/flutter#189664)
2026-08-27 chris@bracken.jp macOS: Fix crash on out-of-bounds text input ranges (flutter/flutter#191780)
2026-08-27 34871572+gmackall@users.noreply.github.com Add HCPP feature flag, and turn it on by default in beta/master (flutter/flutter#190623)
2026-08-27 bkonyi@google.com [tool] Migrate CleanCommand to modular dependency injection (flutter/flutter#190742)
2026-08-26 katelovett@google.com Update triage docs for ecosystem and codelab changes (flutter/flutter#191809)
2026-08-26 jesswon@google.com [AGP 9] Update remaining tests to AGP 9 (flutter/flutter#191824)
2026-08-26 louisehsu@google.com [UIScene] Migrate dev/benchmarks/complex_layout to UIScene lifecycle (flutter/flutter#191619)
2026-08-26 57765714+Vi-debug@users.noreply.github.com Add SliverAppBar showOnScreen semantics test coverage (flutter/flutter#190410)
2026-08-26 95318996+shawnridgeway-google@users.noreply.github.com Add prompt_suggestion icon to list of RTL mirroring icons. (flutter/flutter#191741)
2026-08-26 okorohelijah@google.com Remove bringup for batch 3 (flutter/flutter#191750)
2026-08-26 engine-flutter-autoroll@skia.org Roll Skia from b5465d7b0b77 to 3640b8edd16c (6 revisions) (flutter/flutter#191835)
2026-08-26 louisehsu@google.com Uiscene migrate custom channels views (flutter/flutter#191817)
2026-08-26 matt.boetger@gmail.com Support --[no-]adb-log-filtering CLI option (flutter/flutter#187252)
2026-08-26 engine-flutter-autoroll@skia.org Roll Dart SDK from cb8a4e1a0fbb to cb4c39d067f3 (2 revisions) (flutter/flutter#191825)
2026-08-26 nate.w5687@gmail.com Fix `Navigator.pushNamed<T>()` type checking (flutter/flutter#188148)
2026-08-26 robert.ancell@canonical.com Handle the case where a window doesn't have a title set (flutter/flutter#191767)
2026-08-26 github@alexv525.com [Android] Remove old `InputType` constructor from embedding (flutter/flutter#191244)
2026-08-26 engine-flutter-autoroll@skia.org Roll Skia from 244a6a0f8f92 to b5465d7b0b77 (19 revisions) (flutter/flutter#191810)
2026-08-26 46920873+gabrimatic@users.noreply.github.com Tolerate floating-point rounding in paintImage centerSlice assertion (flutter/flutter#185789)
2026-08-26 30870216+gaaclarke@users.noreply.github.com Fixes translated bounded blurs (flutter/flutter#191615)
2026-08-26 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from MstTWE1RDOT-RnrtH... to qjOQi-zAgu_tADorh... (flutter/flutter#191769)
2026-08-26 136096126+glitchfl@users.noreply.github.com Lerp HSVColor and HSLColor hue along the shortest arc (flutter/flutter#191186)
2026-08-26 116356835+AbdeMohlbi@users.noreply.github.com Fix enum instances comparison to use `equality ==` since dart has the correct behavior now (flutter/flutter#191537)
2026-08-26 30870216+gaaclarke@users.noreply.github.com Switches windows to opengles 3 (flutter/flutter#191516)
2026-08-26 engine-flutter-autoroll@skia.org Roll Dart SDK from 7739e8602bc1 to cb8a4e1a0fbb (1 revision) (flutter/flutter#191784)
2026-08-26 chris@bracken.jp iOS,macOS: Check viewType before creating a platform view (flutter/flutter#191777)
2026-08-26 154381524+flutteractionsbot@users.noreply.github.com Revert: [tool_tests] Remove bringup from Windows tool_tests_commands_2_2 (flutter/flutter#191793)
2026-08-26 kevmoo@users.noreply.github.com refactor(flutter_tools): clean up dead unreferenced declarations (flutter/flutter#191163)
2026-08-26 engine-flutter-autoroll@skia.org Roll Fuchsia GN SDK from a87CbQSWEjkPUK1ZY... to ZsxUUK2SfA-TrNvb8... (flutter/flutter#191763)
2026-08-26 bkonyi@google.com [tool_tests] Remove bringup from Windows tool_tests_commands_2_2 (flutter/flutter#191732)
2026-08-25 36861262+QuncCccccc@users.noreply.github.com Remove legacy gen_defaults analyze checks (flutter/flutter#191629)
2026-08-25 52160996+FMorschel@users.noreply.github.com Refactors `try` to avoid `unawaited_return_in_try_block` case (flutter/flutter#191129)
2026-08-25 engine-flutter-autoroll@skia.org Roll Dart SDK from 8996935d3d0a to 7739e8602bc1 (1 revision) (flutter/flutter#191754)
...
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