This patch was generated automatically by the "modeline.py" script, available
here: https://github.com/amccreight/moz-source-tools/blob/master/modeline.py
For every file that is modified in this patch, the changes are as follows:
(1) The patch changes the file to use the exact C++ mode lines from the
Mozilla coding style guide, available here:
https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Coding_Style#Mode_Line
(2) The patch deletes any blank lines between the mode line & the MPL
boilerplate comment.
(3) If the file previously had the mode lines and MPL boilerplate in a
single contiguous C++ comment, then the patch splits them into
separate C++ comments, to match the boilerplate in the coding style.
MozReview-Commit-ID: EuRsDue63tK
We don't need to bother with refcounting for these pointers, because they're
pointing to DOM elements, and the DOM is basically immutable during reflow.
And BidiParagraphData is a stack-only class which only lives for a short period
of reflow - so it can assume these pointers' targets will stick around for its
whole life.
MozReview-Commit-ID: J3SfRYoRweX
Not all of them are initialized/used in all the paths, but worth doing it just
for sanity.
MozReview-Commit-ID: 2EsHQCc0U8P
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
I believe the reordering of the first/last check across the code that
delves into letter frames is an improvement, but a currently undectable
one, since it appears that we don't currently allow ::first-letter
pseudo-elements to break across lines, even in the presence of
multi-character ::first-letters that are broken by
'word-break:break-all'.
1. Rename these functions to agree with Mozilla coding style.
2. Use singular naming instead of plural naming since each of these functions
returns an iterator pointing to a singular line.
3. Rename line() and rline() to BeginLineFrom() and RBeginLineFrom(), which
shall improve the readability.
MozReview-Commit-ID: txZjVnv9Yb
This patch mainly consists of two parts, one for resolving and the other
for reordering.
In the resolving part, the added code stores the lowest embedding level
of all bidi formatting characters precede a frame to the bidi data of
that frame when necessary.
In the reordering part, virtual frame is restored from the information
stored above before asking the bidi engine to reorder frames
Collapsing a run of continuous virtual formatting characters into one
virtual character with the lowest embedding level among them should work
because a character with a higher embedding level than either of its
neighbors should not affect the reordering result of any other part of
the sequence. (No formal proof of this theorem, though)
MozReview-Commit-ID: LQjRu0mWsZP
This patch is mainly based on smontagu's wip patch. Some non-trivial differences:
* BidiParagraphData.mIsolateCount and related code are not added in this patch.
I investigated uses of this field in the wip patch, and it seems to me none of
them makes sense:
1. in the fast path of nsBidiPresUtils::ResolveParagraph, if there would be
any isolate character in the surrounding text, there must exist more than
one runs, which indicates the isolate count condition is redundant.
2. in handle of br frame in nsBidiPresUtils::TraverseFrames, based on my
understanding of "CSS Writing Modes Level 3" section "2.4.4. Paragraph
Breaks Within Embeddings and Isolates", the resolving should happen
unconditionally.
* {control,override}Char in nsBidiPresUtils::TraverseFrames are assigned
unconditionally when in a bidi inline container, so that we can properly
handle it when there are continuations. I suspect this was the reason of
regressions in dynamic reftests from the wip patch mentioned in comment 1.
MozReview-Commit-ID: LUdBAapA48e
