1433085 - [TSF][e10s] Candidate window of Microsoft Pinyin disappeared after commiting part of composing string

Status: RESOLVED DUPLICATE of bug 1422230

(Core :: Widget: Win32, defect)

Description

[taroxd]

Attachment: attach.zip

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:58.0) Gecko/20100101 Firefox/58.0
Build ID: 20180118215408

Steps to reproduce:

1. Type "nihao" in Microsoft Pinyin
2. Select "你" in the candidate window

I recorded some log as I did in https://bugzilla.mozilla.org/show_bug.cgi?id=1418747. In the attachment, 1.log is the log file with "nsTextStoreWidgets:5,ContentCacheWidgets:5,sync", 2.log with "nsTextStoreWidgets:5,IMEContentObserver:5,sync"


Actual results:

The candidate window disappeared. See the screenshot "what_happened.png" in the attachment.


Expected results:

It should not have disappeared. See the screenshot "expected.png" in the attachment.

Comment 1

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

Got it. Thank you for the report and log files in bug 1418747.

According to the log, when you commit a part of composing string, MS Pinyin does:
1. Commits composition only with committed part. (i.e., only "你" in your STR)
2. Computes next character rect of "你".
3. Starts composition again after "你" with "hao".

Therefore, GetTextExt() doesn't do any hack since there is no composition.

Comment 2

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

> User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:58.0) Gecko/20100101 Firefox/58.0

Oh, you tested with 58. Do you still reproduce this bug with 59 beta? I fixed bug 1422230 and perhaps, it may fix your symptom too.

Comment 3

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

You can download beta build from here:
https://www.mozilla.org/en-US/firefox/channel/desktop/

Unfortunately, I don't know if zipped build is available for avoiding install.

Comment 5

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

Thank you!