This method is not a virtual call, and also looks nicer.
This patch was mostly generated by a Python script, but I manually
cleaned up the code in a few places where statements didn't need to be
split across multiple lines any more.
MozReview-Commit-ID: 8JExxqSRc59
This is mostly code removal, changing GetDisplayContentsStyle(..) checks by an
FFI call to Servo.
The tricky parts are:
* MaybeCreateLazily, which I fixed to avoid setting bits under display: none
stuff. This was a pre-existing problem, which was wallpapered by the
sc->IsInDisplayNoneSubtree() check, which effectively made the whole
assertion useless (see bug 1381017 for the only crashtest that hit this
though).
* ContentRemoved, where we can no longer know for sure whether the element is
actually display: contents if we're removing it as a response to a style
change. See the comment there. That kinda sucks, but that case is relatively
weird, and it's better than adding tons of complexity to handle that.
* GetParentComputedStyle, which also has a comment there. Also, this function
has only one caller now, so we should maybe try to remove it.
The different assertions after DestroyFramesForAndRestyle are changed for a
single assertion in the function itself, and the node bit used as an
optimization to avoid hashtable lookups is taken back.
MozReview-Commit-ID: AZm822QnhF9
The security checks outer window did here don't seem right, because the whole
point is that this method is only called by C++ code for its own purposes.
We're not adding random untrusted listeners via addSystemEventListener!
MozReview-Commit-ID: JdS5gTESclu
The CanCallerAccess check in the "webidl" version of
nsGlobalWindowOuter::AddEventListener was pointless, because bindings never
call things on outer windows.
MozReview-Commit-ID: 1CGMJ277bPu
Also switch the XPCOM-y version of EventTarget::AddEventListner to a
Nullable<bool> for aWantsUntrusted.
The three-arg overload of AddEventListener in ContentFrameMessageManager was
never called, so all the AddEventListener overloads there are not needed.
MozReview-Commit-ID: 4IhqHmPVWzE
We can't have a null content in
ScrollbarActivity::StopListeningForScrollAreaEvents, because only viewport
frames have a null GetContent().
MozReview-Commit-ID: 9iAg0ivVqqG
Summary:
I'm happy to keep it around if you think having the test_mutationobservers check
is useful.
MozReview-Commit-ID: LbWvJiO9LRZ
Reviewers: smaug
Bug #: 1446597
Differential Revision: https://phabricator.services.mozilla.com/D750
Summary: It uses two node bits that can be better suited for something else.
Reviewers: xidorn, smaug
Bug #: 1444905
Differential Revision: https://phabricator.services.mozilla.com/D709
MozReview-Commit-ID: HIPDtHm6xpM
This was used to attach a binding to a cloned node before it got inserted
into the doc. This is no longer used in the browser chrome, so this patch
removes the feature to prevent future usage and simplify dom code.
MozReview-Commit-ID: KnkHWJ8oQig
Poking at the frame tree has problems: If we poke in negative (using
eSkipNativeAnonymousContent), as we were doing, we mess up the case where we're
actually _not_ doc-level, and _not_ ::before or ::after. This can't happen for
content documents, but can happen for chrome (since nsDocElementBoxFrame
implements nsIAnonymousContentCreator).
If we poke in positive, as we used to, you get that right, but mess up the
root scrollbar case.
Instead, use a node property to mark doc level anon content. This is a case rare
enough that it seems worth to not steal a node bit.
To recap the failure:
* The initial value of -moz-control-character-visiblity is different on beta
and nightly.
* XUL has a global rule setting -moz-control-character-visibility on the root,
to a value so that it's the initial one on nightly, but the non-initial one
on beta.
* Changes to this property cause a reframe.
* Reframes of a nsIAnonymousContentCreator anon content reframe the container.
* We were failing to inherit correctly for the nsIAnonymousContentCreator
content for the root XUL element on the initial styling, inheriting from the
default computed values instead, since we failed to reach the root element's
primary frame from GetFlattenedTreeParentForDocumentElementNAC ->
AppendDocumentLevelNativeAnonymousContentTo, since the primary frame is set
_after_ processing children.
This seems somewhat risky to change, and inconsistent with any other stuff
the frame constructor does, see bug 973390.
* Given that, the next restyle of the root element, in this case caused due to
the customizable UI, we _found_ the actual correct parent, recomputed the
style, saw that -moz-control-character-visiblity had changed, and reframed.
But we were reframing the whole window, not just the NAC, because of the
fourth bullet point. Reframing the whole window caused us to lose the popup
state (that's bug 1440506).
Worse than that is the fact that given we reframe and reconstruct the
anonymous countent again, we go back to the initial bogus state, just
awaiting for the next restyle to reframe the whole window.
I wish there was a bullet-proof way to test it that isn't just counting reframes
and relying on which properties reframe or not, but due to the nature of
nsIAnonymousContentCreator's NAC, it's not possible in any easy way I can think
of.
MozReview-Commit-ID: IPYB5trsN8R
