:-moz-native-anonymous can just use is_in_native_anonymous_subtree()
which is an existing function duplicating IsInNativeAnonymousSubtree().
IsRootOfUseElementShadowTree() in C++ code only has a single reference
from nsCSSPseudoClasses::MatchesElement() so we can just move it to the
Rust side. And actually Rust code has existing duplicate logic for
blocks_ancestor_combinators().
MozReview-Commit-ID: 8M1hHrYJT6Y
--HG--
extra : rebase_source : bf53ac7d8b15b0d1f7447a6056986d89b1cb4e57
Summary: They're never overridden, so no need to be virtual.
Reviewers: smaug
Bug #: 1443790
Differential Revision: https://phabricator.services.mozilla.com/D694
MozReview-Commit-ID: 8gnzLTXKqdB
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
Now that accessing nsIContent slots is not a blob of virtual function calls, we
should be able to unify logic here, and speed up the not-so-rare case for
chrome, while keeping the usual case fast.
MozReview-Commit-ID: 87iY5Cbhx4T
We should consider slot as a parent in ChildIterator: if slot's
`assignedNodes` is not empty, use `assignedNodes`, otherwise, use direct
children as fallback content.
Also, GetFlattenedTreeParentNodeInternal should be changed to use
`assignedSlot` instead of `DestInsertionPoints`.
It's a sub-class of nsAtom, useful for cases where you know you are dealing
exclusively with static atoms. The nice thing about it is that you can use
raw nsStaticAtom pointers instead of RefPtr<>. (In fact, the AddRef/Release
implementations ensure that we'll crash if we use RefPtr<nsStaticAtom>.)
MozReview-Commit-ID: 4Q6QHX5h44V
--HG--
extra : rebase_source : e4237f85b4821b684db0ef84d1f9c5e17cdee428
This is pretty much a straight-forward change except for a single thing, the
UpdateInsertionParent calls.
However, I cannot make any sense of them. They go through the inserted children
setting the insertion point, but then ClearInsertionPoints() is called.
ClearInsertionPoints calls XBLChildrenElement::ClearInsertedChildren, which sets
all the insertion points to null anyway.
Thus, I've removed that function completely.
MozReview-Commit-ID: 80daGQfLZrV
--HG--
extra : rebase_source : d52a37a60147ac11794c3cfe1aad5d202e9d2d9f
In order to tailor certain security checks to the caller that is attempting to
load a particular piece of content, we need to be able to attach an
appropriate triggering principal to the corresponding requests. Since most
HTML content is loaded based on attribute values, that means capturing the
subject principal of the caller who sets those attributes, which means making
it available to AfterSetAttr hooks.
MozReview-Commit-ID: BMDL2Uepg0X
--HG--
extra : rebase_source : 25e438c243700a9368c393e40e3a6002d968d6c8
(Path is actually r=froydnj.)
Bug 1400459 devirtualized nsIAtom so that it is no longer a subclass of
nsISupports. This means that nsAtom is now a better name for it than nsIAtom.
MozReview-Commit-ID: 91U22X2NydP
--HG--
rename : xpcom/ds/nsIAtom.h => xpcom/ds/nsAtom.h
extra : rebase_source : ac3e904a21b8b48e74534fff964f1623ee937c67
This commit removes:
* layout.css.style-attr-with-xml-base.disabled pref
* deprecation XMLBaseAttributeForStyleAttr
* code path for getting base URI of style attr considering xml:base
MozReview-Commit-ID: 1w96eqhHPab
--HG--
extra : rebase_source : 95e33da698ce0cfc9a44de8bc0d63c3fa4634644
We should not be declaring forward declarations for nsString classes directly,
instead we should use nsStringFwd.h. This will make changing the underlying
types easier.
--HG--
extra : rebase_source : b2c7554e8632f078167ff2f609392e63a136c299
I've been having problems with interdiffs on mozreview lately, so for
ease of review, this patch is being submitted as a seperate patch for
review. Once it is r+'d, it will be folded into the first patch in
this set before landing.
MozReview-Commit-ID: CS9MngaXlBd
--HG--
extra : rebase_source : 6a86fd4f7a66e73497a756976a2562d183002a2a
