Closed Bug 711648 Opened 8 years ago Closed 8 years ago

Pre-commit underline is not shown for the composing text


(Firefox for Android :: General, defect, P4)




Firefox 12
Tracking Status
firefox11 --- fixed
firefox12 --- fixed
fennec 11+ ---


(Reporter: nhirata, Assigned: alexp)





(1 file, 2 obsolete files)

1. go to
2. long tap in a text field and select simeji
3. click in a text field
4. type some japanese characters

Expected: underline underneath the Japanese character before committing
Actual: no underline.

used :
on Samsung Galaxy S II Android OS 2.3
With the bug 595008 fix the underline for the composing text is not displayed now regardless of the IME used. That's due to different handling of the IME events.
It is a step back compared to the previous implementation, but still on par with the stock browser, which does not show the underline either.
I am planning to look into this, but I believe it's not a high priority issue.
Assignee: nobody → alexp
Summary: Tinderbox build does not show the precommit underline when using simeji → Pre-commit underline is not shown for the composing text
Priority: -- → P4
tracking-fennec: --- → ?
We probably need this for CJK IMEs
tracking-fennec: ? → +
Attached patch WIP Patch (obsolete) — Splinter Review
Implements the composition style handling. The patch needs a bit tweaking though to make sure everything works in all situations.
Attached patch Patch 2Splinter Review
Composition events are now issued more correctly, with the composing transaction kept open while the text is being edited.

setComposingRegion() still needs a better implementation.
Attachment #588606 - Attachment is obsolete: true
Attached patch WIP Patch 3 (obsolete) — Splinter Review
Added handling for setComposingRegion(), but this is really work-in-progress, which needs to be fixed, as it causes very weird behavior with SwiftKey X.
Attachment #589415 - Attachment is obsolete: true
Attachment #590079 - Attachment is obsolete: true
Comment on attachment 589415 [details] [diff] [review]
Patch 2

The second version of the patch is probably the best way to go at the moment. It implements the most of the functionality without major side-effects.

The composition events are issued more or less correctly, the composing text style is handled in most cases, with pre-commit underline being displayed.

Later if needed I may have another approach to further improve this in a follow-up bug.
Attachment #589415 - Attachment description: WIP Patch 2 → Patch 2
Attachment #589415 - Attachment is obsolete: false
Attachment #589415 - Flags: review?(blassey.bugs)
Attachment #589415 - Flags: review?(blassey.bugs) → review+
Closed: 8 years ago
Resolution: --- → FIXED
Target Milestone: --- → Firefox 12
Comment on attachment 589415 [details] [diff] [review]
Patch 2

[Approval Request Comment]
Regression caused by (bug #): Bug 595008
User impact if declined: IME composition events are fired not quite correctly; Slower typing with VKB with extra selections of the text; No underline and special text style while typing with VKB, which is important especially for Japanese and similar languages.
Testing completed (on m-c, etc.): 
Risk to taking this patch (and alternatives if risky): Possible regressions for untested IMEs.
Attachment #589415 - Flags: approval-mozilla-aurora?
Comment on attachment 589415 [details] [diff] [review]
Patch 2

[Triage Comment]
Mobile only - approved for Aurora.
Attachment #589415 - Flags: approval-mozilla-aurora? → approval-mozilla-aurora+
tracking-fennec: + → 11+
Blocks: 720333
Depends on: 743468
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