I need this to make style invalidation work with Shadow Parts in a way that's
fast. If something in the ancestor shadow root or any of its ancestor changes,
that makes a ::part() selector change, I don't want to walk the whole shadow
tree over and over in order to find the parts that I need to restyle.
Unfortunately we cannot just use the mutation observer setup from ShadowRoot
since, unlike for slotted elements, there's no restriction of where a part can
appear in the shadow tree.
That means that the regular nsIMutationObserver notifications don't quite cut
it, since we'd get notified only of subtree roots and we'd need to tree-walk
around in order to figure out if we have any new part.
I thought that I was going to be able to share more code with other bits if I
moved them away from nsIMutationObserver, thus bug 1554498, but in the end it
was not the case, so here's the "without bug 1554498" version of the patch.
The patch on top of that bug (that as I mention in the commit message I'm
ambivalent about whether we should land or not) should be pretty similar either
way.
Differential Revision: https://phabricator.services.mozilla.com/D32641
--HG--
extra : moz-landing-system : lando
We need to notify the whole parent chain (using NOTIFY) rather than just
mStyleSets, since mStyleSets is empty for @import-ed sheets.
Differential Revision: https://phabricator.services.mozilla.com/D31787
--HG--
extra : moz-landing-system : lando
It won't change then, even when removed from the UA Widget. It also gives us an
extra node bit.
Differential Revision: https://phabricator.services.mozilla.com/D20560
--HG--
extra : moz-landing-system : lando
After landing bug 1517241, some lines in Document.cpp and Element.cpp depend on
`using namespace mozilla` and `using namespace mozilla::dom` of *different*
cpp files. Therefore, when you rename some cpp files in dom/base, you'll
hit compile error.
This patch fixes the dependency with moving some classes into mozilla namespace
and adding |mozilla::| or |dom::| to a couple of lines.
Differential Revision: https://phabricator.services.mozilla.com/D15897
--HG--
rename : dom/base/nsIdentifierMapEntry.h => dom/base/IdentifierMapEntry.h
extra : moz-landing-system : lando
We can use the unattach shadow stuff because BlastSubtreeToPieces will remove
all the slots.
Differential Revision: https://phabricator.services.mozilla.com/D12531
--HG--
extra : moz-landing-system : lando
As expected, this is specific to the UA widget stuff.
What's going on here is that given we don't clear out the host when unattaching
the shadow tree, mutating that shadow tree still notifies all the way up to the
document, and that gets all the other code confused, thinking that the node is
connected.
Indeed, the first assertion that fails when loading that test-case in a debug
build is:
https://searchfox.org/mozilla-central/rev/17f55aee76b7c4610a974cffd3453454e0c8de7b/dom/base/nsNodeUtils.cpp#93
This seems the best fix to avoid confusion. Also clear the mutation observer,
to completely forget about the host.
Chrome code dealing with UA widgets needs to be careful, but I think this is
safe. All the code that assumes that GetHost() doesn't return null is in code
dealing with connected shadow trees only (style system / layout), or in
mutation observer notifications from the host.
Differential Revision: https://phabricator.services.mozilla.com/D11369
--HG--
extra : moz-landing-system : lando
So that we don't waste a bunch of memory with stuff like <svg:use>. I
plan to shrink AuthorStyles further, but this should help regardless, and isn't
very complex.
Differential Revision: https://phabricator.services.mozilla.com/D4618
--HG--
extra : moz-landing-system : lando
This moves all the node-specific reporting to nsIDocument.
OrphanReporter delegates all the reporting to that and then returns the sum of
all sizes, which is not ideal but was pre-existing.
Also, I moved the main mStyleSheets size reporting to DocumentOrShadowRoot for
it to be shared between document and ShadowRoot.
I'll add memory reporting for the computed stylesheet maps and such in the
ShadowRoot in a followup.
I went through all the XBL bindings, though it seems I could just use
GetBindingWithContent(), since according to:
https://searchfox.org/mozilla-central/rev/55da592d85c2baf8d8818010c41d9738c97013d2/dom/xbl/nsXBLBinding.cpp#615
We don't allow multiple bindings to contribute anon content. Anyway it was the
same amount of code...
Differential Revision: https://phabricator.services.mozilla.com/D4433
--HG--
extra : moz-landing-system : lando
While trying to repro bug 1484293 I noticed that this assertion failed:
https://searchfox.org/mozilla-central/rev/ef8b3886cb173d5534b954b6fb7eb2d94a9473d0/dom/base/ShadowRoot.cpp#160
(during unlink, while unbinding the kids)
We rely on GetComposedDoc returning the right thing during unbind to cleanup
some stuff (see bug 1473637 for example), so it should probably be correct all
the time, regardless of whether something is unlinked or not.
Also this makes GetComposedDoc() much faster, which is nice too, since we call
it somewhat often.
I removed NodeHasRelevantHoverRules, since it's unused (was used by the old
style system).
I moved the SetIsConnected(false) call for the shadow root to before unbinding
the kids for consistency with what Element does with the uncomposed doc flag,
now that the children's connectedness doesn't depend on the shadow root's.
Differential Revision: https://phabricator.services.mozilla.com/D3715
--HG--
extra : moz-landing-system : lando
While trying to repro bug 1484293 I noticed that this assertion failed:
https://searchfox.org/mozilla-central/rev/ef8b3886cb173d5534b954b6fb7eb2d94a9473d0/dom/base/ShadowRoot.cpp#160
(during unlink, while unbinding the kids)
We rely on GetComposedDoc returning the right thing during unbind to cleanup
some stuff (see bug 1473637 for example), so it should probably be correct all
the time, regardless of whether something is unlinked or not.
Also this makes GetComposedDoc() much faster, which is nice too, since we call
it somewhat often.
I removed NodeHasRelevantHoverRules, since it's unused (was used by the old
style system).
I moved the SetIsConnected(false) call for the shadow root to before unbinding
the kids for consistency with what Element does with the uncomposed doc flag,
now that the children's connectedness doesn't depend on the shadow root's.
Differential Revision: https://phabricator.services.mozilla.com/D3715
--HG--
extra : moz-landing-system : lando
The DOM elements within the UA Widget Shadow DOM should have its reflectors in
the UA Widget Scope. This is done by calling nsINode::IsInUAWidget() which
would check its containing shadow and its UA Widget bit.
To prevent JS access of the DOM element before it is in the
UA Widget Shadom DOM tree, various DOM methods are set to inaccessible to
UA Widget script. It would need to use the two special methods in ShadowRoot
instead to insert the DOM directly into the shadow tree.
MozReview-Commit-ID: Jz9iCaVIoij
--HG--
extra : rebase_source : b7b17be68dcde00cfeb207cb39cf16b486f2ab02
Since sed on multiple lines ended up being such a pain and I didn't end up
writing a script for this because I didn't think it'd end up being so boring, I
may have made a couple cleanups here and there as well...
Differential Revision: https://phabricator.services.mozilla.com/D2887
--HG--
extra : moz-landing-system : lando
Adding the Places* files into unified sources pushed the
unified sources into a situation that exposed a strangely
large number of errors. This seems to be the minimum set of
changes I could make to resolve all of the issues.
MozReview-Commit-ID: C2H9ce8FmE4
--HG--
extra : rebase_source : 61afc5481dc8ec34caba1886bd74200cf3659fb4
Adding the Places* files into unified sources pushed the
unified sources into a situation that exposed a strangely
large number of errors. This seems to be the minimum set of
changes I could make to resolve all of the issues.
MozReview-Commit-ID: C2H9ce8FmE4
--HG--
extra : rebase_source : 4f8dd2996d820fdb5a07afe544be5e2d6ca6a5c7
Adding the Places* files into unified sources pushed the
unified sources into a situation that exposed a strangely
large number of errors. This seems to be the minimum set of
changes I could make to resolve all of the issues.
MozReview-Commit-ID: C2H9ce8FmE4
--HG--
extra : rebase_source : b01f47e439a61492ad999ae30677c48535e8cd4c
Adding the Places* files into unified sources pushed the
unified sources into a situation that exposed a strangely
large number of errors. This seems to be the minimum set of
changes I could make to resolve all of the issues.
MozReview-Commit-ID: C2H9ce8FmE4
--HG--
extra : rebase_source : 571fd3b1e6511daa5731da76fb5d6d97bce11db1
Adding the Places* files into unified sources pushed the
unified sources into a situation that exposed a strangely
large number of errors. This seems to be the minimum set of
changes I could make to resolve all of the issues.
MozReview-Commit-ID: C2H9ce8FmE4
--HG--
extra : rebase_source : 7a3b71596b4318f517ec4c3ac0180e2aa3b721c7
This patch puts the transformed pretty print DOM into a Shadow DOM.
The stylesheet is loaded with an @import in a <style> block, so the
monospace stylesheet had to be left out.
The XBL binding is kept, pending removal when Shadow DOM ships.
It's still needed to handle the case when Shadow DOM is pref'd off too.
MozReview-Commit-ID: DQRsXB8tumF
--HG--
extra : rebase_source : 6edc3d82392af4d98de454a5228328379a0fb7ee
Summary:
Also, make stuff sound in presence of CSSOM and what not.
The dirty: false thing is reverting an accidental change that landed in the
de-XBL stuff, which was harmless, but now wouldn't let me assert stuff properly.
Reviewers: xidorn
Bug #: 1445682
Differential Revision: https://phabricator.services.mozilla.com/D748
MozReview-Commit-ID: K0W2Rv0qK8X
Summary:
Before that bug, we carefully told layout about all distribution changes before
they happened, so layout could cleanup frames and styles synchronously properly
(since otherwise there's no way afterwards to figure out what the tree shape
was).
That bug made it not do it correctly, causing this.
I obviously need to write a bunch of tests for this...
Reviewers: smaug
Bug #: 1438210
Differential Revision: https://phabricator.services.mozilla.com/D724
MozReview-Commit-ID: 8uupNhoFwme
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
Also, change DocumentFragment to use RefPtr, since that's the usual style.
MozReview-Commit-ID: 4PQ19nbmhUh
--HG--
extra : rebase_source : 2afb214b764ba48a4a8718190a6853ae6d6ea80b
Sylvestre Ledru
Emilio Cobos Álvarez
Masayuki Nakano
Razvan Maries
Olli Pettay
shindli
Timothy Guan-tin Chien
Doug Thayer
Dorel Luca
Bogdan Tara
arthur.iakab
Xidorn Quan
Boris Zbarsky
Jessica Jong