1251945 - Wrong position reported to GTKIMContext if zoom in level > 100% (GTK2 build only)

Status: RESOLVED WONTFIX

(Core :: Widget: Gtk, defect)

Description

[Chih-Hsuan Yen [:yan12125]]

Attachment: A screenshot of wrong placement of the candidate panel

Steps to reproduce:

1. Start Firefox with a new profile
`mkdir /tmp/firefox-test && firefox --profile /tmp/firefox-test`
2. Ctrl-Shift-+ to zoom in
2. Switch to a Chinese IME. Here I use ibus-chewing
3. Type some Chinese characters. Choose from candidates by pressing arrow down key.

Expected results:
The candidate panel is placed correctly.

Actual results:
The candidate panel is put at a difference place. See the attachment.

More information:
* Arch Linux x86_64 with Firefox 44.0.2-2. Arch-specific patches can be found at https://projects.archlinux.org/svntogit/packages.git/tree/firefox/trunk
* Only Firefox is affected. Other programs including Google Chrome and xfce4-terminal works fine.

My ideas:
I guess the call to gtk_im_context_set_cursor_location in widget/gtk/IMContextWrapper.cpp is incorrect.

Comment 1

[Alice0775 White]

This seems to be fixed on Aurora46.0a2.

Reporter, could you test with Aurora46.0a2(Developer Edition[1])?

[1]https://www.mozilla.org/ja/firefox/channel/#developer

Comment 2

[Alice0775 White]

en-US is here
[1]https://www.mozilla.org/en-US/firefox/channel/#developer

Comment 3

[Chih-Hsuan Yen [:yan12125]]

Yep it's fixed in 46.0a2, while not in 45.0b10. Thanks for the information!

Comment 4

[Makoto Kato [:m_kato] (PTO until 5/6)]

This depends on whether GTK2 or GTK3.  Because this was fixed by Firefox/GTK3 (bug 1181000) and Firefox 45 still use GTK2.

Comment 5

[Chih-Hsuan Yen [:yan12125]]

Arch Linux upgrades Firefox to 46.0, but the bug is still. Even worse, the tarball [1] exihibits the same bug now. I'm not sure whether it's caused by a recent upgrade of GTK3 or not. Currently GTK 3.20 is used. [2]

[1] https://www.mozilla.org/en-US/firefox/channel/#firefox
[2] https://git.archlinux.org/svntogit/packages.git/tree/gtk3/trunk/PKGBUILD

Comment 6

[Chih-Hsuan Yen [:yan12125]]

Just created a test user account and tried again. No more mysterious ~/.gtk* files. Same results.

Comment 7

[Alice0775 White]

Now, 46.0 is "disabled de10s" by default.
So, We hit Bug 1261671. And Bug 1261671 is "WONTFIX" for 46.0 as well as 45(incl ESR45) :(

Comment 8

[Chih-Hsuan Yen [:yan12125]]

Thanks for the information. Backported and fixed.

Comment 9

[Chih-Hsuan Yen [:yan12125]]

I guess this ticket can be closed as the stable version is now built with GTK+3?

Comment 10

[Chih-Hsuan Yen [:yan12125]]

I'd like to mark this bug as WONTFIX, as Firefox now defaults to GTK+3. Is it OK?

Comment 11

[Makoto Kato [:m_kato] (PTO until 5/6)]

(In reply to Yen Chi Hsuan from comment #10)
> I'd like to mark this bug as WONTFIX, as Firefox now defaults to GTK+3. Is
> it OK?

Yes.  As long as I test on Nightly/GTK3, this doesn't occur.