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Use start instead of extent for Windows IME cursor position #45667

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merged 3 commits into from
Sep 13, 2023

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yaakovschectman
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When composing with the IME in a text edit, we should add the start of the composition range to the in-composition cursor_pos rather than its extent. When using extent, the cursor position would always be outside of the composition range, resulting in the linked bug. Add a test to check cursor position.

flutter/flutter#123749

Pre-launch Checklist

  • I read the Contributor Guide and followed the process outlined there for submitting PRs.
  • I read the Tree Hygiene wiki page, which explains my responsibilities.
  • I read and followed the Flutter Style Guide and the C++, Objective-C, Java style guides.
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@Renzo-Olivares Renzo-Olivares left a comment

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LGTM

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@Renzo-Olivares Renzo-Olivares left a comment

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LGTM

@@ -243,7 +245,7 @@ TEST(TextInputPluginTest, VerifyInputActionNewlineInsertNewLine) {
// Editing state should have been updated.
auto encoded_arguments = EncodedEditingState("\n", TextRange(1));
auto update_state_message = codec.EncodeMethodCall(
{"TextInputClient.updateEditingState", std::move(encoded_arguments)});
{kUpdateEditingStateMethod, std::move(encoded_arguments)});
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@cbracken cbracken Sep 12, 2023

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Thanks for cleaning this up while you're in here!

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LGTM stamp from a Japanese personal seal

@yaakovschectman yaakovschectman merged commit 1017f8e into flutter:main Sep 13, 2023
25 checks passed
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Sep 13, 2023
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Sep 13, 2023
auto-submit bot pushed a commit to flutter/flutter that referenced this pull request Sep 13, 2023
…134691)

flutter/engine@154d6fd...cd90cc8

2023-09-13 godofredoc@google.com Update dependabot.yml (flutter/engine#45788)
2023-09-13 skia-flutter-autoroll@skia.org Roll Skia from e39cf360ea93 to b38989859b81 (4 revisions) (flutter/engine#45787)
2023-09-13 109111084+yaakovschectman@users.noreply.github.com Use `start` instead of `extent` for Windows IME cursor position (flutter/engine#45667)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC bdero@google.com,rmistry@google.com,zra@google.com on the revert to ensure that a human
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To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose

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Mairramer pushed a commit to Mairramer/flutter that referenced this pull request Oct 10, 2023
…lutter#134691)

flutter/engine@154d6fd...cd90cc8

2023-09-13 godofredoc@google.com Update dependabot.yml (flutter/engine#45788)
2023-09-13 skia-flutter-autoroll@skia.org Roll Skia from e39cf360ea93 to b38989859b81 (4 revisions) (flutter/engine#45787)
2023-09-13 109111084+yaakovschectman@users.noreply.github.com Use `start` instead of `extent` for Windows IME cursor position (flutter/engine#45667)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC bdero@google.com,rmistry@google.com,zra@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
harryterkelsen pushed a commit that referenced this pull request Oct 23, 2023
When composing with the IME in a text edit, we should add the `start` of
the composition range to the in-composition `cursor_pos` rather than its
`extent`. When using `extent`, the cursor position would always be
outside of the composition range, resulting in the linked bug. Add a
test to check cursor position.

flutter/flutter#123749

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide] and the [C++,
Objective-C, Java style guides].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I added new tests to check the change I am making or feature I am
adding, or the PR is [test-exempt]. See [testing the engine] for
instructions on writing and running engine tests.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [ ] I signed the [CLA].
- [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/wiki/Tree-hygiene#overview
[Tree Hygiene]: https://github.com/flutter/flutter/wiki/Tree-hygiene
[test-exempt]:
https://github.com/flutter/flutter/wiki/Tree-hygiene#tests
[Flutter Style Guide]:
https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo
[C++, Objective-C, Java style guides]:
https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style
[testing the engine]:
https://github.com/flutter/flutter/wiki/Testing-the-engine
[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
https://github.com/flutter/flutter/wiki/Tree-hygiene#handling-breaking-changes
[Discord]: https://github.com/flutter/flutter/wiki/Chat
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