Fix Scrollbar drag behavior #179199
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Fix Scrollbar drag behavior #179199
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This pull request correctly fixes an issue where a scrollbar could be dragged even when there was no scrollable range. The logic is updated to properly check for a scrollable range by comparing maxScrollExtent and minScrollExtent. A new test case has been added to validate this fix. The changes are well-implemented and improve the correctness of the scrollbar behavior.
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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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Updates
_canHandleScrollGestures()to check if there's an actual scrollable range (maxScrollExtent > minScrollExtent) instead of only checking ifmaxScrollExtent > 0.0.Fixes #178863
Pre-launch Checklist
///).If you need help, consider asking for advice on the #hackers-new channel on Discord.
Note: The Flutter team is currently trialing the use of Gemini Code Assist for GitHub. Comments from the
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