Initially this was going to be a simple cleanup: Remove some useless namespaces
here and there and so on, remove `using` statements from the header and so on.
But unfortunately, DOMIntersectionObserver.h (which is included in Element.h,
unnecessarily) ended up exposing `Element` unnamespaced to a lot of code, so I
had to fix that.
Differential Revision: https://phabricator.services.mozilla.com/D55316
Sub classes of `nsITextControlElement` are only `HTMLInputElement` and
`HTMLTextAreaElement`. And both base class is
`nsGenericHTMLFormElementWithState`. Therefore, we can make
`nsITextControlElement` inherit `nsGenericHTMLFormElementWithState` and
make `HTMLInputElement` and `HTMLTextAreaElement` inherit
`nsITextControlElement`. Then, we can get rid of a lot of QI between
`nsINode`/`nsIContent`/`Element` and `nsITextControlElement` (and note that
some of them in a hot path).
Additionally, this patch renames `nsITextControlElement` to
`mozilla::TextControlElement`.
Differential Revision: https://phabricator.services.mozilla.com/D54330
Sub classes of `nsITextControlElement` are only `HTMLInputElement` and
`HTMLTextAreaElement`. And both base class is
`nsGenericHTMLFormElementWithState`. Therefore, we can make
`nsITextControlElement` inherit `nsGenericHTMLFormElementWithState` and
make `HTMLInputElement` and `HTMLTextAreaElement` inherit
`nsITextControlElement`. Then, we can get rid of a lot of QI between
`nsINode`/`nsIContent`/`Element` and `nsITextControlElement` (and note that
some of them in a hot path).
Additionally, this patch renames `nsITextControlElement` to
`mozilla::TextControlElement`.
Differential Revision: https://phabricator.services.mozilla.com/D54330
This expands Element with chrome-only setAttribute methods that give devtools
callers an ExtendedPrincipal with a CSP with a flag set to allow changes to
inline styles. This gives devtools the ability to modify documents with a
Content-Security-Policy.
Differential Revision: https://phabricator.services.mozilla.com/D41313
This was generated with:
```
rg -l -g '*.{cpp,h}' MOZ_XBL . | while read FILE ; do
echo $FILE
unifdef -m -UMOZ_XBL $FILE
done
```
After this, I manually removed the directive in nsContentUtils.cpp due to:
unifdef: ./dom/base/nsContentUtils.cpp: 4630: Unterminated string literal
unifdef: Output may be truncated
Differential Revision: https://phabricator.services.mozilla.com/D51337
When XBL is disabled, no code in dom/xbl will be built. Also, adds ifdefs
to remove any of the XBL related code elsewhere. There's definitely more
that can be done here, but I think it's better to wait to do the rest of
the cleanup when we actually remove the code.
Depends on D45612
Differential Revision: https://phabricator.services.mozilla.com/D45613
People keep shooting themselves in the feet because of this codepath and writing
slow code.
There are just a few elements with bindings left, so just check those.
Also simplify a bit the code. The XUL element + tagname check should be pretty
fast now, and ComputedStyle objects no longer keep weak pointers to pres
contexts and such, so can be safely kept on a RefPtr across an style flush.
Differential Revision: https://phabricator.services.mozilla.com/D47995
This contains an (intentional) behavior change, which is that we always copy
(i.e. don't reparse) style attributes, even across documents.
XUL and HTML already had this behavior. This makes stuff like SVG and MathML
consistent with that.
Depends on D44128
Differential Revision: https://phabricator.services.mozilla.com/D44129
ReferrerPolicy gets tossed back and forth as a uint32_t and
ReferrerPolicy enum in header file. Expose ReferrerPolicyValues from
webidl file and use consistently in native code.
Differential Revision: https://phabricator.services.mozilla.com/D41954
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
BindContext was going to have way more information at first, but then I realized
that most of the things I wanted to know were basically a flag away using the
parent node.
Still I think it's worth it, now experimenting with BindToTree will only mean
adding a field to a struct that's included from a couple cpp files, instead of a
massive pain.
I also think this is clearer, and doing this highlights quite a few
inconsistencies in our code which I've left untouched, but commented with
FIXMEs.
Steps are:
$ for file in $(rg 'nsresult BindToTree\(' | cut -d : -f 1 | sort | uniq); do sed -i 's#nsresult BindToTree(Document\* aDocument, nsIContent\* aParent,#nsresult BindToTree(BindContext\&, nsINode\& aParent)#g' $file; done
$ for file in $(rg 'nsresult BindToTree\(' | cut -d : -f 1 | sort | uniq); do sed -i 's# nsIContent\* aBindingParent) override#override#g' $file; done
$ for file in $(rg '::BindToTree\(' | cut -d : -f 1 | sort | uniq); do sed -i 's#::BindToTree(Document\* aDocument, nsIContent\* aParent,#::BindToTree(BindContext\& aContext, nsINode\& aParent)#g' $file; done
$ for file in $(rg '::BindToTree\(' | cut -d : -f 1 | sort | uniq); do sed -i 's#nsIContent\* aBindingParent)##g' $file; done
$ for file in $(rg '::BindToTree\(' | cut -d : -f 1 | sort | uniq); do sed -i 's#::BindToTree(aDocument, aParent, aBindingParent)#::BindToTree(aContext, aParent)#g' $file; done
$ ./mach clang-format
Then manual fixups.
Depends on D32948
Differential Revision: https://phabricator.services.mozilla.com/D32949
This doesn't clean up as much as a whole, but it's a step in the right
direction. In particular, it allows us to start using simple bindings for:
* Filters
* Shapes and images, almost. Need to:
* Get rid of the complex -moz- gradient parsing (let
layout.css.simple-moz-gradient.enabled get to release).
* Counters, almost. Need to:
* Share the Attr representation with Gecko, by not using Option<>.
* Just another variant should be enough (ContentItem::{Attr,Prefixedattr},
maybe).
Which in turn allows us to remove a whole lot of bindings in followups to this.
The setup changes a bit. This also removes the double pointer I complained about
while reviewing the shared UA sheet patches. The old setup is:
```
SpecifiedUrl
* CssUrl
* Arc<CssUrlData>
* String
* UrlExtraData
* UrlValueSource
* Arc<CssUrlData>
* load id
* resolved uri
* CORS mode.
* ...
```
The new one removes the double reference to the url data via URLValue, and looks
like:
```
SpecifiedUrl
* CssUrl
* Arc<CssUrlData>
* String
* UrlExtraData
* CorsMode
* LoadData
* load id
* resolved URI
```
The LoadData is the only mutable bit that C++ can change, and is not used from
Rust. Ideally, in the future, we could just use rust-url to resolve the URL
after parsing or something, and make it all immutable. Maybe.
I've verified that this approach still works with the UA sheet patches (via the
LoadDataSource::Lazy).
The reordering of mWillChange is to avoid nsStyleDisplay from going over the
size limit. We want to split it up anyway in bug 1552587, but mBinding gains a
tag member, which means that we were having a bit of extra padding.
One thing I want to explore is to see if we can abuse rustc's non-zero
optimizations to predict the layout from C++, but that's something to explore at
some other point in time and with a lot of care and help from Michael (who sits
next to me and works on rustc ;)).
Differential Revision: https://phabricator.services.mozilla.com/D31742
$ for file in $(rg UnbindFromTree | cut -d : -f 1 | sort | uniq); do sed -i 's#UnbindFromTree(bool aDeep = true,#UnbindFromTree(#g' $file; done
$ for file in $(rg UnbindFromTree | cut -d : -f 1 | sort | uniq); do sed -i 's#UnbindFromTree(bool aDeep,#UnbindFromTree(#g' $file; done
$ for file in $(rg UnbindFromTree | cut -d : -f 1 | sort | uniq); do sed -i 's#UnbindFromTree(aDeep,#UnbindFromTree(#g' $file; done
$ ./mach clang-format
And fix the two callers and little use of the aDeep argument (see the "Manual
changes" patch attached to bug).
Differential Revision: https://phabricator.services.mozilla.com/D32898
This doesn't clean up as much as a whole, but it's a step in the right
direction. In particular, it allows us to start using simple bindings for:
* Filters
* Shapes and images, almost. Need to:
* Get rid of the complex -moz- gradient parsing (let
layout.css.simple-moz-gradient.enabled get to release).
* Counters, almost. Need to:
* Share the Attr representation with Gecko, by not using Option<>.
* Just another variant should be enough (ContentItem::{Attr,Prefixedattr},
maybe).
Which in turn allows us to remove a whole lot of bindings in followups to this.
The setup changes a bit. This also removes the double pointer I complained about
while reviewing the shared UA sheet patches. The old setup is:
```
SpecifiedUrl
* CssUrl
* Arc<CssUrlData>
* String
* UrlExtraData
* UrlValueSource
* Arc<CssUrlData>
* load id
* resolved uri
* CORS mode.
* ...
```
The new one removes the double reference to the url data via URLValue, and looks
like:
```
SpecifiedUrl
* CssUrl
* Arc<CssUrlData>
* String
* UrlExtraData
* CorsMode
* LoadData
* load id
* resolved URI
```
The LoadData is the only mutable bit that C++ can change, and is not used from
Rust. Ideally, in the future, we could just use rust-url to resolve the URL
after parsing or something, and make it all immutable. Maybe.
I've verified that this approach still works with the UA sheet patches (via the
LoadDataSource::Lazy).
The reordering of mWillChange is to avoid nsStyleDisplay from going over the
size limit. We want to split it up anyway in bug 1552587, but mBinding gains a
tag member, which means that we were having a bit of extra padding.
One thing I want to explore is to see if we can abuse rustc's non-zero
optimizations to predict the layout from C++, but that's something to explore at
some other point in time and with a lot of care and help from Michael (who sits
next to me and works on rustc ;)).
Differential Revision: https://phabricator.services.mozilla.com/D31742
According to the spec [1] 7.2.10.2, we should use the first line box's height or width as positioning unit to adjust box's position.
We will also use this value to adjust box when `snap-to-line` is false.
There, we implement a new chrome-only API to acquire this information, which would return the first line box's size in the `block` frame.
[1] https://www.w3.org/TR/webvtt1/#ref-for-webvtt-cue-snap-to-lines-flag-12
Differential Revision: https://phabricator.services.mozilla.com/D29745
When adjusting cue's position, the goal is to place cue boxes fully inside the rendering area, and place in the right place.
In order to check whether the box is correctly inside the rendering area, we have to know the correct size of the cue box.
Therefore, we implement the new chrome-only APIs to acquire this information (box's height and width), and this returned value won't be affected by CSS transformation, which is good for positioning.
Differential Revision: https://phabricator.services.mozilla.com/D27178
`CapturingContentInfo` struct is used only in `PresShell.cpp` so that we can
make it a private struct of `PresShell` if we move all users of them,
i.e., API to access them, from `nsIPresShell` to `PresShell`.
Differential Revision: https://phabricator.services.mozilla.com/D29111
This patch creates new header, `mozilla/PresShellForwards.h`. It should have
all forward declarations of global class/struct in `nsIPresShell.h` and
`mozilla/PresShell.h`.
Additionally, this moves all `enum`s and `constant`s in them into the new file
with changing them to `enum class`es.
This will make other headers which require only specific types in the header
files not include them.
Differential Revision: https://phabricator.services.mozilla.com/D28605
This patch marks `ScrollContentIntoView()` as `MOZ_CAN_RUN_SCRIPT` and changing
some callers of them to guarantee thar their parent callers are also safe.
Additionally, this patch moves it from `nsIPresShell` to `PresShell` because
all callers can refer `PresShell` directly.
Unfortunately, this patch changes a lot of methods in autocomplete and satchel
since this patch needs to mark some interface methods as `can_run_script` and
they are called each other. This means that autocomplete module is really
sensitive like editor module. Perhaps, autocomplete and satchel should do
scroll asynchronously and unmark some of them as `MOZ_CAN_RUN_SCRIPT` again.
Differential Revision: https://phabricator.services.mozilla.com/D28320
The change to the EventTargetChainItem constructor is because we're changing mTarget to be const (to avoid taking extra stack refs to the EventTarget), so have to set it in the constructor instead of setting it after creating the object.
Differential Revision: https://phabricator.services.mozilla.com/D25813
`*Inlines.h` shouldn't be included by another header file, but `nsPresContext.h`
does it. This causes include-hell which blocks the following fix.
Additionally, it causes an include hell between `PresShell.h` vs.
`nsIPresShell.h` and `nsPresContext.h if `Document.h` includes `PresShell.h`.
Therefore, this patch also solves this include hell with adding
`nsPresContextInlines.h`.
Differential Revision: https://phabricator.services.mozilla.com/D25333
`*Inlines.h` shouldn't be included by another header file, but `nsPresContext.h`
does it. This causes include-hell which blocks the following fix.
Additionally, it causes an include hell between `PresShell.h` vs.
`nsIPresShell.h` and `nsPresContext.h if `Document.h` includes `PresShell.h`.
Therefore, this patch also solves this include hell with adding
`nsPresContextInlines.h`.
Differential Revision: https://phabricator.services.mozilla.com/D25333
