307934 - regression: In RTL text, can't move caret using arrow keys past point where text wraps

Status: RESOLVED FIXED

(Core :: Layout: Text and Fonts, defect)

Description

[Uri Bernstein]

In an RTL textarea where a line wraps to the next line (e.g. the upper textarea
in https://bugzilla.mozilla.org/attachment.cgi?id=128682), the caret is stuck
when you try to use left-arrow to move beyond the wrapping point (i.e. from the
first line to the second one). The same happens when you try to use right-arrow
to go back from the second line to the first one.

This regressed due to the patch for bug 305083, and is now both on the trunk and
on the 1.8 branch.

Needless to say, this is very major, and must be fixed for beta 2.

Comment 1

[Uri Bernstein]

Attachment: patch

Only "unflip" the hint when we know the inner call might want to flip it
itself.

I actually explained why this is necessary back in bug 207186 comment #28
(describing this regression if it's not done), but then forgot about it when
reviewing the patch  for bug 305083.

Comment 2

[Eyal Rozenberg]

Comment on attachment 195610 [details] [diff] [review]
patch

I'll take your word for it, I can't really do any serious reviewing. 

It would of course be more easy to understand if every mAmount could accept the
original unmodified mPreferLeft and change it according to whatever logic it
employs, but the whole thing can't be made simple and understandable anyway, so
let it be as the patch suggests.

Sorry for not having caught this either.

Comment 3

[Robert O'Callahan (:roc) (email my personal email if necessary)]

Comment on attachment 195610 [details] [diff] [review]
patch

rubber-stamp.

This code has to be rewritten on trunk.

Comment 4

[Asaf Romano (gone)]

Checking in nsTextFrame.cpp;
/cvsroot/mozilla/layout/generic/nsTextFrame.cpp,v  <--  nsTextFrame.cpp
new revision: 1.525; previous revision: 1.524
done

Comment 5

[Asaf Romano (gone)]

1.8 Branch:
Checking in nsTextFrame.cpp;
/cvsroot/mozilla/layout/generic/nsTextFrame.cpp,v  <--  nsTextFrame.cpp
new revision: 1.513.4.5; previous revision: 1.513.4.4
done

Comment 6

[(no longer active)]

Mass-assigning the new rtl keyword to RTL-related (see bug 349193).