The dirty bit fiddling is nontrivial, but it's pretty much what we do for
invalidation and allows to keep this incrementally easily.
The only caller that we cared about for the GetFlattenedTreeParent check in
DestroyFramesForAndRestyle was the old ShadowRoot invalidation functions that
went away.
MozReview-Commit-ID: GmgPPJ6d2qX
This patch basically does:
* remove StyleSetHandle and its corresponding files
* revisit #includes of related header files and change correspondingly
* change nsIPresShell::mStyleSet to be UniquePtr<ServoStyleSet>
* change the creating path of ServoStyleSet to pass UniquePtr
* change other mentions of StyleSetHandle to ServoStyleSet*
* remove AsServo() calls on ServoStyleSet
Some unfortunate bits:
* some methods of (Servo)StyleSet only accepts ServoStyleSheet while
many places call into the methods with StyleSheet, so there are many
->AsServo() added to sheets
MozReview-Commit-ID: K4zYnuhOurA
It is no longer used, and removing this from ServoStyleSet allows us to
remove dependency from ServoStyleSet.h to StyleSheetInlines.h.
MozReview-Commit-ID: HzYNulJF7tf
The nsCSSFrameConstructor bits are now handled in PresShell::Destroy along with
the other refresh driver observers.
I cleaned up the nsRefreshDriver methods because they were using infallible
append anyway, and that simplified the logic.
MozReview-Commit-ID: 1eDUUXjUUS9
PresShell only uses performane.now to track refresh times, and notify internal
observers. We can provide more accurate times by not clamping and jittering
these numbers.
MozReview-Commit-ID: FkDGJhrLeAy
The font face set is owned by the document now, and the shell knows about
refresh driver ticks. There's no reason for it to live in the pres context.
MozReview-Commit-ID: I8gtimok7VG
This code was originally added to debug the frame visibility code.
However it wasn't architected correctly and makes the compositor use an
untrusted layers id from content. Instead of fixing this I'd rather just
delete it, since it's a big pile of code that is basically a debugging
tool that nobody owns anymore.
MozReview-Commit-ID: nPZqVeYsFp
This switches `nsNodeInfoHash` to a nsDataHashTable. The hash function and
equality operator are moved to NodeInfoInner so that they can be easily reused.
Most of them just want GetRootFrame(), and there's no need to explicitly go
through the frame manager for that, we have a handy alias in the shell.
MozReview-Commit-ID: GriEqkasidY
-Wmissing-prototypes is a new optional warning available in clang ToT. It warns about global functions that have no previous function declaration (e.g. from an #included header file). These functions can probably be made static (allowing the compiler to better optimize them) or they may be unused.
Confusingly, clang's -Wmissing-prototypes is equivalent to gcc's -Wmissing-declarations, not gcc's -Wmissing-prototypes. A function prototype is a function declaration that specifies the function's argument types. C++ requires that all function declarations specify their argument types, but C does not. As such, gcc's -Wmissing-prototypes is a C-only warning about C functions that have no previous function *prototypes* (with argument types), even if a previous function *declaration* (without argument types) was seen.
MozReview-Commit-ID: FGKVLzeQ2oK
mNeedStyleFlush is also set by animation restyle request. So it's possible
that the flag is set again in PostRestyleForThrottledAnimations() or in
sequential tasks for updating animations after the flag is cleared at the top
DoFlushPendingNotifications().
MozReview-Commit-ID: KPSS6cJb4HX
This unfortunately doesn't fix my test-case (because we're replacing the text
content all the time and all that), but it's still worth it, since it fixes the
case we care about (the parser appending).
We could also optimize pure insertions (since in that case we can still figure
out what the old text was), but it's probably annoying and not worth the churn.
In any case, we cannot optimize anything that resembles any kind of removal,
because from there we don't know the old text in any way (and the text nodes
like to reuse string buffers and such).
We could do two other optimizations to replace / extend this one, in that order:
* Pass the buffer and length to CharacterDataWillChange, and use that to get
the exact old text and the new one in RestyleManager. That would make the
optimization exact.
* Pass some sort of Maybe<bool> mWasWhitespace down the CharacterDataChangeInfo
which is computed like:
HasFlag(NS_CACHED_TEXT_IS_ONLY_WHITESPACE)
? Some(NS_TEXT_IS_ONLY_WHITESPACE)
: Nothing()
It's not clear to me it's going to be completely worth the churn, so I haven't
done those yet, if we see code in the wild which resembles my testcase, we can
think of doing it.
MozReview-Commit-ID: 2rTWaZti8rv
