448650 - Fennec can't handle Thai line-breaking properly

Status: RESOLVED WONTFIX

(Firefox for Android Graveyard :: General, defect)

Description

[Isriya Paireepairit]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.1) Gecko/2008070206 Firefox/3.0.1
Build Identifier: 

Thai language has special characteristic: no space between words, only between sentences. So the line-breaking is a bit tricky (dictionary-based). Firefox also had this problem and it was fixed in Firefox 3 (with new text engine in Gecko 1.9 by roc) in combination with platform language API (e.g. Pango, ATSUI, Uniscribe, see: #336959 for more detail)

I ask my friend who has Nokia N800 with Thai fonts installed to test this case on latest Fennec build (0.5) and this bug happens. 

The full report is available at: http://www.google.com/notebook/public/17663711166257746396/BDSUCIwoQ1LPlu7cj

Reproducible: Always

Steps to Reproduce:
1.
2.
3.



Testing on
* N800 with OS2008 version 4.2008.23-14 (a.k.a. Diablo firmware)
* Fennec 0.5
* XUL Runner 1.9.1a1pre

Comment 1

[cmtalbert]

Isriya, Can you provide a sample web page with a line of thai that demonstrates the problem?  As I don't know the rules about thai line breaking, I'm a bit hesitant to confirm this without a test case.

Comment 2

[cmtalbert]

Sorry for the spam.  Please attach the html of the testcase page using the "Add attachment" functionality in bugzilla.  Thanks.

Comment 3

[Isriya Paireepairit]

Attachment: Testcase for Thai linebreaking

Test case for Thai linebreaking

Comment 4

[Keng Susumpow]

Attachment: Fennec 1.0b1 Thai word break testing on Mac OS X

I've tested Fennec 1.0b1 on Mac OS X with this test case (http://www.keng.ws/files/firefox/thai-word-break-test.html), seems line-breaking works correctly.

I'm not sure this is because of running Fennec on the host machine or not.

Comment 5

[Aakash Desai [:aakashd]]

Yep, this is seen on build:

Mozilla/5.0 (X11; U; Linux armv7l; en-US; rv:1.9.2b1pre) Gecko/20091008
Fennec/1.0b4

Comment 6

[BMO Automation]

Closing all opened bug in a graveyard component