More improvements to come. In particular, this still iterates through Shadow DOM
in each_xbl_cascade_data, but that should be changed later. That allows to
cleanup a bunch of stuff and finally fix Shadow DOM cascade order.
We still rely on the binding parent to be setup properly in the shadow tree, but
that requirement can go away later (we can walk the containing shadow chain
instead).
This mostly focuses on removing the XBL binding from the Shadow host.
It'd be nice to do EnumerateShadowRoots faster. I think that should also be a
followup, if needed.
MozReview-Commit-ID: Jf2iGvLC5de
If a single element is inserted in the document, from the lazy frame
construction path we mark it as the restyle root.
It has no restyle data, and we weren't calling ClearServoData when its parent
was being removed from ClearServoDataFromSubtree, thus leaving the stale restyle
root.
MozReview-Commit-ID: GY812b8tDk0
--HG--
extra : rebase_source : e6d1035e7d3a72b931aa53ac8dcbf7db58982479
We used to do it this way effectively until I fixed it in bug 1400936.
Per the list of fuzz bugs that bug has in the "Depends on" field, some of those
without a super-clear fix, and others that aren't listed in there, and all the
complexity we had to deal with while receiving restyle requests mid-unbind, etc,
I think this is the right call.
This clears data on RestyleManager::ContentRemoved for non-anonymous nodes, and
on UnbindFromTree for subtrees rooted at anonymous nodes.
This will hopefully yield enforceable invariants.
MozReview-Commit-ID: IMwX5Uh1apv
--HG--
extra : rebase_source : 6cafc4499c9b80cbc96f1c4d1496e524f59e3c4d
Everyone calls them with the shell of the current composed document, and this
allows the multi-presShell stuff to just be in UpdateCurrentStyleSources /
DoGetStyleContextNoFlush.
The only reason we need to use OwnerDoc()->GetShell() instead of the composed
doc in GetStyleContext / GetStyleContextNoFlush is Element::GetBindingURL, which
does expect to get the binding URL for stuff outside of the composed doc (and
changing that gave me a useless browser).
That's technically a behavior change on the cases that used to pass nullptr, but
I think all callers are fine with that. I could also just add a special function
for that particular case, it may be worth it.
MozReview-Commit-ID: 2XlnkgdgDCK
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
--HG--
extra : rebase_source : 52c175afbbfc0cf5cd33c39b6f0577452a90f1a0
It would be convenient to get nsPresContext from nsIDocument.
MozReview-Commit-ID: Ei6V3UE8XGr
--HG--
extra : rebase_source : 8d2a917eb62cf341e4e1810451fd01c01dbc3bad
We used to do it this way effectively until I fixed it in bug 1400936.
Per the list of fuzz bugs that bug has in the "Depends on" field, some of those
without a super-clear fix, and others that aren't listed in there, and all the
complexity we had to deal with while receiving restyle requests mid-unbind, etc,
I think this is the right call.
This clears data on RestyleManager::ContentRemoved for non-anonymous nodes, and
on UnbindFromTree for subtrees rooted at anonymous nodes.
This will hopefully yield enforceable invariants.
MozReview-Commit-ID: IMwX5Uh1apv
KeyframeEffect and KeyframeEffectReadOnly constructors can run in the caller
compartment, which is okay because the current compartment is used in the
following places and all of them are safe:
1. GlobalObject::CallerType(), that is ultimately passed to
nsDocument::IsWebAnimationsEnabled in KeyframeEffectParamsFromUnion,
to decide whether to copy mIterationComposite/mComposite to
KeyframeEffectParams.
GlobalObject::CallerType() can now be different than the target window's one,
if the caller has the system principal and the target is web content, and
in that case nsDocument::IsWebAnimationsEnabled there always returns true
while Web Animations can be disabled on web content.
honoring the mIterationComposite/mComposite properties is OK, since it just
changes the animation behavior, and this is disabled by default until
remaining spec issues are resolved.
2. GlobalObject::Context(), that is ultimately passed to
KeyframeUtils::GetKeyframesFromObject and used while extracting information
from passed-in keyframe object, with iterable/iterator protocols.
Performing that operation in the caller side is okay, since the same thing
can be done on caller, and the operation doesn't perform any GCThing
allocation on the target window global.
KeyframeEffect and KeyframeEffectReadOnly constructors can run in the caller
compartment, which is okay because of the following reasons:
1. The target window global is used for most operation:
* KeyframeEffectReadOnly::ConstructKeyframeEffect uses the target window
global instead of current global.
* KeyframeEffectParamsFromUnion which receives `aGlobal.CallerType()`
In Xray case, Web Animations API can be disabled on web content
(currently disabled on beta/release by default), and in that case some API
won't work even it's triggered from WebExtensions, but it should be fine.
2. GetKeyframesFromObject is executed in the caller's compartment to access
the passed-in JSObject that is keyframe, with iterable/iterator protocols.
This operation doesn't perform any GCThing allocation on the target window
global.
This is a short-term solution to our inability to apply CSP to
chrome-privileged documents.
Ideally, we should be preventing all inline script execution in
chrome-privileged documents, since the reprecussions of XSS in chrome
documents are much worse than in content documents. Unfortunately, that's not
possible in the near term because a) we don't support CSP in system principal
documents at all, and b) we rely heavily on inline JS in our static XUL.
This stop-gap solution at least prevents some of the most common vectors of
XSS attack, by automatically sanitizing any HTML fragment created for a
chrome-privileged document.
MozReview-Commit-ID: 5w17celRFr
--HG--
extra : rebase_source : 1c0a1448a06d5b65e548d9f5362d06cc6d865dbe
extra : amend_source : 7184593019f238b86fd1e261941d8e8286fa4006
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
Give the compiler the chance to devirtualize / inline a bit more.
MozReview-Commit-ID: D5u2AxaZ7a1
--HG--
extra : rebase_source : e235b8b60322a113f459067e2762ea237cb26ec5
The textarea is inserted under a Shadow host, with no matching insertion point,
so its flattened tree parent node is null.
We're treating this case in the restyle root code as "the parent is the
document", but that's very wrong.
MozReview-Commit-ID: JlzUMRIYaYZ
--HG--
extra : rebase_source : feeaf7a7333097aa87b35358172472790f6c74a7
This is necessary in order to capture the correct triggering principal for
inline <style> nodes.
MozReview-Commit-ID: 9EaD40vRNkH
--HG--
extra : rebase_source : cdd4a730f24dc57783edcf666ae803379c0d6173
This is necessary in order to parse style attributes using the subject
principal of the caller, rather than defaulting to the page principal.
MozReview-Commit-ID: GIshajQ28la
--HG--
extra : rebase_source : 5dba46f61d70ec647cae16383b62961ac72d2f47
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
I'm drive-by removing the comment about the frame tree state because I looked
into it, and the answer is: we properly restore it.
The gotcha is that we retain it too much, indeed, we retain it enough that it
can leak. See bug 1397239.
MozReview-Commit-ID: LP6bXkduEZ4
--HG--
extra : rebase_source : f7e18fc35e48b75c07fcc84b939614d379926828
We could also check whether it is a subdocument frame or what not (not that
we're going to render anything down there). But at that point the value of
avoiding the FFI call starts diluting.
MozReview-Commit-ID: BBIv0O3fFuk
--HG--
extra : rebase_source : 663ead4fe3df83ea1d929b8726c8c1ab8b05c06a
I'm not adding a crashtest because the one provided is kinda unreliable, and I
suck and I wasn't able to find a better one.
MozReview-Commit-ID: CmaF0NO4Dff
--HG--
extra : rebase_source : 5d324499b1a258f9d73266c06adbc46ae98db896
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
On that test-case we have something like:
<body restyle-root>
<element dirty-descendants>
<element-2>
</element>
</body>
If we change the state of element-2 after unbinding the <body>, which clears the
body's flags, but not the children's flags, there'll be no restyle root, even
though our parent has the relevant flags anyway.
This doesn't compromise correctness in any way, so I'd rather drop the assertion
that shuffle a bunch of stuff so it holds.
MozReview-Commit-ID: KFVTkXclKST
--HG--
extra : rebase_source : 089049ba8d5458370eb4175423019a6cd170700c
This patch merges nsAtom into nsIAtom. For the moment, both names can be used
interchangeably due to a typedef. The patch also devirtualizes nsIAtom, by
making it not inherit from nsISupports, removing NS_DECL_NSIATOM, and dropping
the use of NS_IMETHOD_. It also removes nsIAtom's IIDs.
These changes trigger knock-on changes throughout the codebase, changing the
types of lots of things as follows.
- nsCOMPtr<nsIAtom> --> RefPtr<nsIAtom>
- nsCOMArray<nsIAtom> --> nsTArray<RefPtr<nsIAtom>>
- Count() --> Length()
- ObjectAt() --> ElementAt()
- AppendObject() --> AppendElement()
- RemoveObjectAt() --> RemoveElementAt()
- ns*Hashtable<nsISupportsHashKey, ...> -->
ns*Hashtable<nsRefPtrHashKey<nsIAtom>, ...>
- nsInterfaceHashtable<T, nsIAtom> --> nsRefPtrHashtable<T, nsIAtom>
- This requires adding a Get() method to nsRefPtrHashtable that it lacks but
nsInterfaceHashtable has.
- nsCOMPtr<nsIMutableArray> --> nsTArray<RefPtr<nsIAtom>>
- nsArrayBase::Create() --> nsTArray()
- GetLength() --> Length()
- do_QueryElementAt() --> operator[]
The patch also has some changes to Rust code that manipulates nsIAtom.
MozReview-Commit-ID: DykOl8aEnUJ
--HG--
extra : rebase_source : 254404e318e94b4c93ec8d4081ff0f0fda8aa7d1
We make nsContentUtils::EnqueueLifecycleCallback static so that it can be
called without a window object. To achive this, we also make
CustomElementReaction not taking a CustomElementRegistry in the constructor,
as it can call Upgrade statically.
MozReview-Commit-ID: 7xUvK0q7Eri
This is the actual fix, and makes sure that the state is consistent even if we
notify of state changes on a parent during unbind.
We potentially do a bit more work than needed given we set the document as the
root in that case instead of the parent which could potentially be the root
itself, but that's not a huge deal I think, given these cases are rare.
If this happens to be a perf problem, we may want to just drop the root during
UnbindFromTree if aNullParent == true and the root is a descendant of `this`.
MozReview-Commit-ID: A9d2igM0hMr
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
XPCOM's string API doesn't have the notion of a "null string". But it does have
the notion of a "void string" (or "voided string"), and that's what these
functions are returning. So the names should reflect that.
--HG--
extra : rebase_source : 4e3f982e0873877174a08a25413595ff66f7d20e
`MallocSizeOfOps::enclosing_size_of_op` is an `Option<>` type, and the panic in
question is caused by not providing a value in a case where it's needed for
measuring a HashSet.
HashMaps and HashSets are common enough that it makes sense to make
`enclosing_size_of_op` non-optional, which this patch does.
MozReview-Commit-ID: IB2aRuXHj8E
--HG--
extra : rebase_source : a6f593b718ca9e92a7a36ca7e2063a01e11c7e04
Doing it off a runnable makes the flattened tree inconsistent until that
runnable runs.
Also add an assert in frame construction that would've caught the first
only-unbind patch.
MozReview-Commit-ID: Hnua3aWSMHi
--HG--
extra : rebase_source : 2781e3b0a3f28b6b6a620902e7414dfe682fba51
We already measure (in Rust code) the things hanging off it, but overlooked the
object itself. This patch adds measurement on the C++ side.
--HG--
extra : rebase_source : f7daf62b4ec43cdc95034ffcb2a3aca27d995ae3
With previous change, KeyboardEvent is dispatched even when invisible window
has focus. However, nsRootWindow::GetControllerForCommand() returns controller
for focused window even when the window is invisible because it uses
nsFocusManager::GetFocusedDescendant() to retrieve focused window.
Perhaps, we can assume that users won't expect to do something with invisible
window when they type some keys. Then, nsRootWindow::GetControllerForCommand()
should return controller for visible ancestor window if focused window is
invisible.
This patch makes nsFocusManager::GetFocusedDescendant() can return only visible
descendants. However, it already has a bool argument. Therefore, it should
have a flag instead of adding new flag. Most changes of this patch is replacing
its callers.
Then, nsRootWindow::GetControllerForCommand() and nsRootWindow::GetControllers()
should have a bool flag if it should return controller(s) for visible window.
This patch adds a bool flag for it. Fortunately, the interface isn't scriptable.
Finally, this patch makes nsXBLPrototypeHandler::DispatchXBLCommand() and
EventStateManager::DoContentCommandEvent() retrieve controller for visible
window since they are always handles user input.
MozReview-Commit-ID: GygttTHuKRm
--HG--
extra : rebase_source : 1341273c4606298cb9b890b9312d9f5c8a75d144
This allows us to avoid posting animation-related restyles when removing
elements from the document tree.
MozReview-Commit-ID: CzN4S0DTUMa
--HG--
extra : rebase_source : a5b94d9ad5b1b2243abd0a5b188eec2b334df74d
Inserting/removing things into a doubly-linked list is much faster than doing
the same with a hashtable. Selection ranges register themselves on their common
ancestor, but all we do with that in non-debug code is iterate all the ranges
registered. A doubly-linked list works fine for that.
This adds three words to every range for the LinkedListItem members, but that
should be OK.
Inserting/removing things into a doubly-linked list is much faster than doing
the same with a hashtable. Selection ranges register themselves on their common
ancestor, but all we do with that in non-debug code is iterate all the ranges
registered. A doubly-linked list works fine for that.
This adds three words to every range for the LinkedListItem members, but that
should be OK.
Not sure about the name, or whether making it a static or not (a static seemed
slightly clearer, but nbd, feel free to bikeshed about it).
MozReview-Commit-ID: FHGmcoprN2Q
--HG--
extra : rebase_source : 2f68a55ee861d9eacc56004cb98470a518574626
We call attributeChangedCallback in two cases:
1. When any of the attributes in the observed attribute list has changed,
appended, removed, or replaced.
2. When upgrading an element, for each attribute in element's attribute list
that is in the observed attribute list.
MozReview-Commit-ID: LKUY5ibp9RI
* * *
Bug 1334051 - Part 3: Optimize attributeChanged callbacks. r=smaug
The failure here is a <script> that document.writes a whole HTML document, which
happens to have the Gecko style back-end.
Of all the elements written there, there's an <img> element which triggers a
load, which finishes and changes the state of the <img>, posting a restyle event
to its Gecko-backed restyle manager.
At that point, but before the refresh driver ticks, the element is unbound from
the tree, keeping the restyle root bits from the Gecko back-end.
Afterwards, the element is bound to a Servo-backed document, so
ClearRestyleFlagsIfGecko does nothing (since the document pointer is already
set, and points to a Servo-backed document).
Furthermore, it's inserted on a display: none subtree, so we never reach it
during the traversal to remove the flags.
Other alternative fixes for this same issue would be:
* Clearing the Gecko restyle flags in UnbindFromTree. Gecko doesn't seem to
prevent restyle roots from being outside of the document (it just does
nothing when finding them on ProcessPendingRestyles), so it doesn't seem a
very reliable solution.
* Reorder the flag clearing to be before setting the document in BindToTree.
Seems somewhat risky, and for no good reason.
MozReview-Commit-ID: B6iZKhGHc3A
--HG--
extra : rebase_source : eecb8d0fc078a8c1dc70161a266fa227e02bcd35
Another plumbing-only change, which is a precursor for the next patch.
ComputedValues are a Servo-only thing, so in order to use nsStyleSizes for both
Gecko and Servo, the ComputedValues sizes must be moved out.
MozReview-Commit-ID: BOnQSzzV0vC
--HG--
extra : rebase_source : 025c6161e509401a36525349083dd98bfda35621
This is a purely non-functional plumbing change. Instead of passing a
SizeOfState and an nsStyleSizes a bunch of places, we pass an nsWindowSizes,
which contains both of them.
This is a necessary precursor for the next patch.
MozReview-Commit-ID: Ek03wDM50rB
--HG--
extra : rebase_source : 7b05708bd21dc4e3812ea041647fa74bb413d0b9
There's only one case of sync frame construction from ContentRemoved now, and
it's not on the element being removed, but on the whitespace siblings if needed,
and _only_ when they don't support lazy frame construction.
Basically, this switches all the RecreateFramesForContent calls to use
`aAsyncInsert` (which I changed to an enum class for readability), except when
we're already reframing.
Also, it switches ReframeTextIfNeeded to opt-in into lazy frame construction,
since it's used only when aFlags == CONTENT_REMOVED.
This allows to simplify the DestroyFramesFor API (which I'm happy to rename to
something more meaningful, since now it's something like
DestroyFramesForAndRecreateThemAsync), and do some other consistency cleanups.
A bunch of the ContentRemoved callsites were pretty random at passing
aAsyncInsert, and that was some kind of a mess. This patch ensures consistency,
and makes it impossible to do O(n^2) work when removing DOM nodes, which is
nice.
The underlying reason for this is explained in the description of bug 1377848,
and basically allows us to remove a bunch of Servo hacks on the longer term (a
few of them are going away already, yay!).
MozReview-Commit-ID: 2DrUTxGV8RX
--HG--
extra : rebase_source : f428d839a5482477dea22c0fea600d54f3e8799c
For the Obama wikipedia page, this covers about 85% of the unmeasured
ComputedValues structs. The about:memory output looks like this:
> +---2,443,648 B (02.41%) -- computed-values
> | +--1,088,272 B (01.07%) -- dom
> | +----945,744 B (00.93%) -- non-dom
> | +----409,632 B (00.40%) -- visited
I'm not sure why some CVs are still being missed.
MozReview-Commit-ID: 1bYWwSi4ihn
--HG--
extra : rebase_source : 14e4bd36a54bbbd8fd265f559704bec5a5e3b154
This patch moves measurement of ComputedValues objects from Rust to C++.
Measurement now happens (a) via DOM elements and (b) remaining elements via
the frame tree. Likewise for the style structs hanging off ComputedValues
objects.
Here is an example of the output.
> ├──27,600,448 B (26.49%) -- active/window(https://en.wikipedia.org/wiki/Barack_Obama)
> │ ├──12,772,544 B (12.26%) -- layout
> │ │ ├───4,483,744 B (04.30%) -- frames
> │ │ │ ├──1,653,552 B (01.59%) ── nsInlineFrame
> │ │ │ ├──1,415,760 B (01.36%) ── nsTextFrame
> │ │ │ ├────431,376 B (00.41%) ── nsBlockFrame
> │ │ │ ├────340,560 B (00.33%) ── nsHTMLScrollFrame
> │ │ │ ├────302,544 B (00.29%) ── nsContinuingTextFrame
> │ │ │ ├────156,408 B (00.15%) ── nsBulletFrame
> │ │ │ ├─────73,024 B (00.07%) ── nsPlaceholderFrame
> │ │ │ ├─────27,656 B (00.03%) ── sundries
> │ │ │ ├─────23,520 B (00.02%) ── nsTableCellFrame
> │ │ │ ├─────16,704 B (00.02%) ── nsImageFrame
> │ │ │ ├─────15,488 B (00.01%) ── nsTableRowFrame
> │ │ │ ├─────13,776 B (00.01%) ── nsTableColFrame
> │ │ │ └─────13,376 B (00.01%) ── nsTableFrame
> │ │ ├───3,412,192 B (03.28%) -- servo-style-structs
> │ │ │ ├──1,288,224 B (01.24%) ── Display
> │ │ │ ├────742,400 B (00.71%) ── Position
> │ │ │ ├────308,736 B (00.30%) ── Font
> │ │ │ ├────226,512 B (00.22%) ── Background
> │ │ │ ├────218,304 B (00.21%) ── TextReset
> │ │ │ ├────214,896 B (00.21%) ── Text
> │ │ │ ├────130,560 B (00.13%) ── Border
> │ │ │ ├─────81,408 B (00.08%) ── UIReset
> │ │ │ ├─────61,440 B (00.06%) ── Padding
> │ │ │ ├─────38,176 B (00.04%) ── UserInterface
> │ │ │ ├─────29,232 B (00.03%) ── Margin
> │ │ │ ├─────21,824 B (00.02%) ── sundries
> │ │ │ ├─────20,080 B (00.02%) ── Color
> │ │ │ ├─────20,080 B (00.02%) ── Column
> │ │ │ └─────10,320 B (00.01%) ── Effects
> │ │ ├───2,227,680 B (02.14%) -- computed-values
> │ │ │ ├──1,182,928 B (01.14%) ── non-dom
> │ │ │ └──1,044,752 B (01.00%) ── dom
> │ │ ├───1,500,016 B (01.44%) ── text-runs
> │ │ ├─────492,640 B (00.47%) ── line-boxes
> │ │ ├─────326,688 B (00.31%) ── frame-properties
> │ │ ├─────301,760 B (00.29%) ── pres-shell
> │ │ ├──────27,648 B (00.03%) ── pres-contexts
> │ │ └─────────176 B (00.00%) ── style-sets
The 'servo-style-structs' and 'computed-values' sub-trees are new. (Prior to
this patch, ComputedValues under DOM elements were tallied under the the
'dom/element-nodes' sub-tree, and ComputedValues not under DOM element were
ignored.) 'servo-style-structs/sundries' aggregates all the style structs that
are smaller than 8 KiB.
Other notable things done by the patch are as follows.
- It significantly changes the signatures of the methods measuring nsINode and
its subclasses, in order to handle the tallying of style structs separately
from element-nodes. Likewise for nsIFrame.
- It renames the 'layout/style-structs' sub-tree as
'layout/gecko-style-structs', to clearly distinguish it from the new
'layout/servo-style-structs' sub-tree.
- It adds some FFI functions to access various Rust-side data structures from
C++ code.
- There is a nasty hack used twice to measure Arcs, by stepping backwards from
an interior pointer to a base pointer. It works, but I want to replace it
with something better eventually. The "XXX WARNING" comments have details.
- It makes DMD print a line to the console if it sees a pointer it doesn't
recognise. This is useful for detecting when we are measuring an interior
pointer instead of a base pointer, which is bad but easy to do when Arcs are
involved.
- It removes the Rust code for measuring CVs, because it's now all done on the
C++ side.
MozReview-Commit-ID: BKebACLKtCi
--HG--
extra : rebase_source : 4d9a8c6b198a0ff025b811759a6bfa9f33a260ba
We're going to start tracking the restyle root on the presshell, so we'll need
one. This should be fine, since if the presshell doesn't exist yet we can't
have done the initial style, and if it's already been destroyed we don't need
restyle state anymore.
MozReview-Commit-ID: EfNVloI9ENQ
This function is large enough that it doesn't really make sense to have inline,
and we'll be adding more to it in the coming patches.
MozReview-Commit-ID: AnDfzwsMvNy
This fixes the testcase in the bug, which removes and reinserts
some elements. Our invariants require us not to set the dirty
descendants bits on unstyled elements.
MozReview-Commit-ID: 1eESZjNSURG
The patch provides FFI access to Gecko's SeenPtrs type from Rust, in order to
record what has already been measured when measuring Arcs. (The SeenPtrs must
be initialized on the Gecko side because the same table is reused for measuring
all Elements within a window, because Elements can share ComputedValues.) I
have confirmed with DMD that this is working correctly.
The patch also introduces MallocSizeOfRepeats, which is like MallocSizeOf but
takes a SizeOfState, which holds a SeenPtrs table.
MozReview-Commit-ID: DHS8zvCsEdQ
--HG--
extra : rebase_source : acf4d7909abf6ceb1719331ccf2e33137eb6dc91
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
All the SizeOf{In,Ex}cludingThis() functions take a MallocSizeOf function
which measures memory blocks. This patch introduces a new type, SizeOfState,
which includes a MallocSizeOf function *and* a table of already-measured
pointers, called SeenPtrs. This gives us a general mechanism to measure
graph-like data structures, by recording which nodes have already been
measured. (This approach is used in a number of existing reporters, but not in
a uniform fashion.)
The patch also converts the window memory reporting to use SizeOfState in a lot
of places, all the way through to the measurement of Elements. This is a
precursor for bug 1383977 which will measure Stylo elements, which involve
Arcs.
The patch also converts the existing mAlreadyMeasuredOrphanTrees table in the
OrphanReporter to use the new mechanism.
--HG--
extra : rebase_source : 2c23285f8b6c3b667560a9d14014efc4633aed51
Unfortunately, nsGenericHTMLElement::GetAssociatedEditor() cannot use concrete classes because it may return nsIEditor which is set via nsIDocShell.editor. The editor set to nsIDocShell may be implemented by JS since nsIEditor isn't marked as builtinclass.
MozReview-Commit-ID: 6GY9LOYp4hM
--HG--
extra : rebase_source : 3e0464067b30daf8254805458c5358d7ea644be8
It logically makes more sense for these effects to happen after the attribute has actually been changed and moving them allows us to get rid of the member variable HTMLImageElement::mForceReload.
MozReview-Commit-ID: IJBF3AHVb0U
--HG--
extra : rebase_source : fe3ae2a0cc55ded9702fb7654261ffee83a52057
This is necessary to facilitate the transition to cloning attributes instead of reparsing them.
HTMLImageElement's side effects proved to be a bit trickier than those of many other classes because HTMLImageElement::SetAttr intentionally forces an image reload, even if the attribute value has not been changed. Element::SetAttr, on the other hand, usually ignores attribute changes that do not change the attribute value, exiting before BeforeSetAttr is even called. In order to preserve this behavior, another virtual function |OnAttrSetButNotChanged| was added to the Element class. This function will be called in the case that Element::SetAttr exits early, allowing a forced reload to take place at that time.
MozReview-Commit-ID: 4CrH30bo5GT
--HG--
extra : rebase_source : 94245dde2710abd439671d05e99f145caca3e189
This is necessary to facilitate the transition to cloning attributes instead of reparsing them.
MozReview-Commit-ID: HzB3f1sr9y9
--HG--
extra : rebase_source : 8c343c60b5dca18fb04a4cb548907a2e4b9df1d2
In order to facilitate the movement of code with side-effects called by Element::SetAttr to Element::BeforeSetAttr and Element::AfterSetAttr, Element::AfterSetAttr should have access to the old value of the attribute. This includes information about whether there was previously a value set or not.
Accomplishing this involved passing an additional argument through functions that find and change the old attribute value in order to ensure that we can differentiate between an empty old value and an absent old value (attribute was not set).
Note that while I tried to ensure that accurate values (and their absence) are reported to Element::AfterSetAttr, I largely ignored SVG. While the old value reported for SVG values should be however accurate the value already being reported to SetAttrAndNotify was, SVG elements do not currently report unset values properly because they will never pass a null pointer to SetAttrAndNotify.
MozReview-Commit-ID: K1mha8CNFZP
--HG--
extra : rebase_source : 42776eb01451d371e4aebcc17fe3dd112c8d268b
This was originally added in bug 1133439 but it's not clear that it is needed.
It may be that we thought that new SMIL animations should trigger transitions
but that's not the case.
We want to remove this as part of this bug since Servo_NoteExplicitHints is
currently not capable of handling animation restyle hints and non-animation
restyle hints at the same time.
--HG--
extra : rebase_source : 729947c29efc51864333397cf772079646c1f197
In our current setup, in which links with an href attribute always match either
:link or :visited, no matter whether that attribute's value is a valid URI,
changes to the attribute always put the element into either the "match nothing"
state or the "match :link" state, via calls to Link::ResetLinkState.
The only thing FlushPendingLinkUpdates is needed for is (lazily, in case it
turns out to not be needed because the element got removed from the DOM anyway)
registering a history observer to switch the link state to :visited as needed.
This means that selector matching consumers that would never expose :visited
state to start with don't need to worry about calling FlushPendingLinkUpdates.
Try to speed up perceived pageload by opening a connection as soon as the
user mouses down on a link, instead of waiting for the full click/AsyncOpen
process to get there.
MozReview-Commit-ID: 4g6mZXWt9H5
--HG--
extra : rebase_source : cf7b5628058c1a1bcadc8531f2da44d259c6fdaa
This avoids conflicts with mozilla::dom::FrameType.
MozReview-Commit-ID: 7aEMbHRaTFk
--HG--
extra : rebase_source : 2d01321f5ce0ec8c0e3f70984674f82678034b3c
In the next patch we want to add a method called
GetUnanimatedStyleContextForElementNoFlush but that's much too long. Instead it
seems better to just drop 'ForElement' from all these methods since it should be
fairly obvious we are getting the style context for an element given that the
first argument is an element.
MozReview-Commit-ID: JQKaEuCKV2F
--HG--
extra : rebase_source : 3ba51f3b00d1ec7bc91102629d9c0abb88992fef
Since the ::cue div created by JS, it doesn't have the NODE_IS_NATIVE_ANONYMOUS flag.
We set the NODE_IS_NATIVE_ANONYMOUS when binding to domtree from the ::cue up to the RootOfAnonymousSubtree
so that GetClosestNonNativeAnonymousAncestor will return video element as style parent.
MozReview-Commit-ID: 3EiYOqnbY15
--HG--
extra : rebase_source : eedcd5948852c3405a719b9f3c3396ee009f7273
This means that implementations of BeforeSetAttr no longer need to UpdateState.
Those UpdateState calls will be removed in a bit.
MozReview-Commit-ID: 1yEg5D4garD
This removes the requirement that BeforeSetAttr comes before AttributeWillChange
(which needs the preparsed new value).
MozReview-Commit-ID: 87C6Mjc7ARh
Since it's not just the EventStateManager that has access to modify
these EventStates bits.
MozReview-Commit-ID: 17EpfQT5M40
--HG--
extra : rebase_source : 6d5f7ecff2d41d66cbc23ea12e08dc6295e29875
Since it's not just the EventStateManager that has access to modify
these EventStates bits.
MozReview-Commit-ID: 17EpfQT5M40
--HG--
extra : rebase_source : 6d5f7ecff2d41d66cbc23ea12e08dc6295e29875
This fits a bit better with the other stuff, and allows us to add our new NAC
bit with the other NAC related bits, which also happens to be a field that
Servo already has easy access to.
--HG--
extra : rebase_source : 52ef902eb3b23dc44cefec899b02c9180b76160c
This fits a bit better with the other stuff, and allows us to add our new NAC
bit with the other NAC related bits, which also happens to be a field that
Servo already has easy access to.
--HG--
extra : rebase_source : 52ef902eb3b23dc44cefec899b02c9180b76160c
This introduces a basic framework for servo's style system to be able
to query the style of presentation attributes which it can then insert
into the cascade. It uses that framework to implement the size and
color attributes on <font>.
There are a number of improvements that can be done on top of this:
- Implement all other properties
- Abstractify the ruledata parameter of the mappers using templates or virtual dispatch so that it can be a Servo decl block instead
- Implement aforementiond abstraction over Servo decl blocks (this obsoletes the code in the first item above, so it might just be better to skip that and directly do this)
- Replace uses of nsHTMLStyleSheet with an abstract base class containing common elements between Servo and Gecko
I'd prefer for these to be done in separate steps.
MozReview-Commit-ID: GO60qfeZOfl
--HG--
extra : rebase_source : 516d369a8627e413983361aaf85ccb7132b0a06c
This patch doesn't currently work. The test fails in two test cases. Right now the styles for a 'locked-off' psuedo class are still being applied.
MozReview-Commit-ID: DppYTmILpwy
* * *
[mq]: temp
MozReview-Commit-ID: 74iIOQumfrw
--HG--
extra : rebase_source : 276e694b61aaeb0cb55a963c793d58876a92546f
Doing QI from nsIEditor to nsIEditorIMESupport doesn't make sense because editor should always support all methods and attributes of nsIEditorIMESupport (it does NOT mean that all nsIEditor implementation need to support IME).
This patch moves all of them to nsIEditor for avoiding redundant QIs.
MozReview-Commit-ID: DzIKuGHG4iy
--HG--
extra : rebase_source : cc5e9a6ae4572ebe461d9770ffa5c23d33dc8526
Enable nsAttrValue::EnumTable to be initialized with enum. So, we could get rid
of the castings in EnumTable. Fix EnumTable initialization comment.
For those untyped enumerations, declare them with uint8_t, as to other typed
enumerations with type size larger than int16_t, force casting to int16_t.
Use {nullptr,0} instead of {0} to represent the last entry.
MozReview-Commit-ID: 7Dma3Apkmxj
--HG--
extra : rebase_source : b2289866c4c33d80c8e170727bf109d018d92f67
The main renaming was generated with the following python script:
```
import sys
import re
CAMEL_CASE_REGEX = re.compile(r"(^|_|-)([A-Z])([A-Z]+)")
DISPLAY_REGEX = re.compile(r"\bNS_STYLE_DISPLAY_([^M][A-Z_]+)\b")
def to_camel_case(ident):
return re.sub(CAMEL_CASE_REGEX,
lambda m: m.group(2) + m.group(3).lower(), ident)
def constant_to_enum(constant):
return "StyleDisplay::" + to_camel_case(constant) + ("_" if constant == "NONE" else "")
def process_line(line):
return re.sub(DISPLAY_REGEX,
lambda m: constant_to_enum(m.group(1)), line)
lines = []
with open(sys.argv[1], "r") as f:
for line in f:
lines.append(process_line(line))
with open(sys.argv[1], "w") as f:
for line in lines:
f.write(line)
```
And the following shell commands:
```
find . -name '*.cpp' -exec python display.py {} \;
find . -name '*.h' -exec python display.py {} \;
```
MozReview-Commit-ID: 91xYCbLC2Vf
hasFeature() always returning true matches the current DOM spec. SVG 2
has removed requiredFeatures. Chrome has had both of these always
return true since 2014, and they seem to have had no problems.
Even requiredFeatures="" (empty string) now returns true, matching
Chrome.
MozReview-Commit-ID: 1LEu3iK4R94
- In order to reduce the size of the following patches
and increase their readability, we rename VRDevice
to VRDisplay here first.
MozReview-Commit-ID: 3pv8scdIi5w
If the mathml.disabled preference is true, treat <math> and other MathML
elements as generic XML elements.
This patch disables the rendering code of MathML however preserves the
namespace so to reduce the breakage.
Original patch by: Kathy Brade <brade@pearlcrescent.com>
MozReview-Commit-ID: A2f2Q2b4eqR
--HG--
extra : rebase_source : 3c8530816727c01b68a831d560bfe16e7b02bd9d
Olli Pettay
Emilio Cobos Álvarez
Brian Grinstead
Hiroyuki Ikezoe
Andreea Pavel
Tooru Fujisawa
Bas Schouten
Boris Zbarsky
Cameron McCormack
Cosmin Sabou
Ashish
Kris Maglione
Bobby Holley
Bogdan Tara
John Dai
Edgar Chen
Brad Werth
Phil Ringnalda
Boris Chiou
Jonathan Watt
Chris Peterson
btian
Nicholas Nethercote
Sebastian Hengst
Ehsan Akhgari
Tobias Schneider
Wes Kocher
Thomas Wisniewski
Jessica Jong
Matt Woodrow
Andrea Marchesini
Masayuki Nakano
Xidorn Quan
Henri Sivonen
Milan Sreckovic
Kyle Machulis
Sylvestre Ledru
Bill McCloskey
Mats Palmgren
Kirk Steuber
Ryan VanderMeulen
Christian Holler
Brian Birtles
Daniel Holbert
Swapnesh Kumar Sahoo
Nicholas Hurley
bechen
Manish Goregaokar
Iris Hsiao
Tom Tromey
Jared Wein
Ho-Pang
Stone Shih
Botond Ballo
Mike de Boer
Jeremy Chen
Emilio Cobos Álvarez
Aryeh Gregor
Kearwood (Kip) Gilbert
Daosheng Mu
Jonathan Kingston