Won't fire keydown event when an input session starting with Sogou IME

[wyattzheng]

Preflight Checklist

• I have read the Contributing Guidelines for this project.
• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for an issue that matches the one I want to file, without success.

Issue Details

• Electron Version:
  • 11.0.0-beta1
• Operating System:
  • Windows 10 (18363.1379)
• Last Known Working Electron version:
  • 10.4.0

Expected Behavior

Some events like input,keydown,keyup,compositionstart,compositionupdate,compositionend would be fired correctly.

Actual Behavior

Some input IMEs like Sogou Pinyin would never trigger the event like keydown when they are inputing.

To Reproduce

for windows:

1. download the Sogou IME installer from https://pinyin.sogou.com/
2. try to input Chinese words or Japanese words in integrated terminal of vscode

Screenshots

Additional Information

[ckerr]

try to input Chinese words or Japanese words in integrated terminal of vscode

Thanks for reporting this and helping to make Electron better!

Because of time constraints, triaging code with third-party dependencies is usually not feasible for a small team like Electron's.

Would it be possible for you to make a standalone testcase with only the code necessary to reproduce the issue? For example, Electron Fiddle is a great tool for making small test cases and makes it easy to publish your test case to a gist that Electron maintainers can use.

Stand-alone test cases make fixing issues go more smoothly: it ensure everyone's looking at the same issue, it removes all unnecessary variables from the equation, and it can also provide the basis for automated regression tests.

I'm adding the blocked/needs-repro label for this reason. After you make a test case, please link to it in a folloup comment.

Thanks in advance! Your help is appreciated.

[wyattzheng]

@ckerr Sure, i will make a testcase.

[wyattzheng]

@ckerr i created a gist by Electron Fiddle to reproduce: https://gist.github.com/4e49015759016591d9be00305f734303

[wyattzheng]

i am also trying to see what causes this between 11.0.0-beta1 and 10.4.0 .
So i am setting up a developing environment . And try to use git bisect to find out the bad commit.

[nornagon]

@ZhyMC You might be able to narrow it down with Electron Fiddle's built-in bisect feature. Enable it with View > Toggle Bisect Helper.

[wyattzheng]

@nornagon sure, but these two versions are close.

[wyattzheng]

it's hard to setting up an electron developing environment. i need to download source of chromium.

[nornagon]

@ZhyMC you might find https://github.com/electron/build-tools helpful. But also a Fiddle bisect range will probably get us pretty close. You can enable nightlies in Fiddle to get a finer range than released versions.

[ostli]

Is there any progress so far？

[asd281533890]

Same problem with electron 15.2.0. Won't fire any inputEvent with Sougou IME. No problem in chrome browser.

[codebytere]

Duplicate of #33386

[guoyianlin]

Same problem with electron 16.0.8. Won't fire any inputEvent with Sougou IME. Is there any good solution?

[asd281533890]

No problem on Windows 7 with electron 11.5.0.

[1339240789]

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[1339240789]

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