tree 17dc414c68c6f3e5d5bb1fc55f5f3c9e41b6af77
parent 7d43893bb998cb0909e021a9968ad3097246e43e
author Roozbeh Pournader <roozbeh@google.com> 1428960820 -0700
committer Roozbeh Pournader <roozbeh@google.com> 1428962503 -0700

Add more firstStrong alternatives for textDirection.

The current firstStrong value of textDirection is locale-dependent,
and can create problems when consistent display of text across
locales of potentially different direction is desired.

This adds two new values for textDirection, firstStrongLtr and
firstStrongRtl, which don't use the locale or the view's direction as
fallback, but explicit values of LTR or RTL.

Using firstStrongLtr also guarantees the exact algorithm defined in
the Unicode Bidirectional Algorithm to be used for determining
direction.

Bug: 13428339
Change-Id: I450d4f6b5197763ace7f9506c72cf87a90da4218