On top of https://github.com/servo/servo/pull/16890.
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Now that script has `WindowProxy` rather than `BrowsingContext` objects, we can rename `Frame` in the constellation to `BrowsingContext`. In particular, this means that `FrameId`s are now `BrowsingContextid`s, which better captures their purpose (and they are used in a lot of places, not just the constellation).
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Scroll roots are no longer nested containers holding items, so instead
we need to track the offsets of each, carefully handling fixed position
items and stacking contexts that create new reference frames.
Additionally, we remove the complexity of the pre-computed page scroll
offset, instead opting to send script scrolls to the layout task in
order to more quickly have a ScrollState there that matches the
script's idea of the scroll world.
Fixes#16405.
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This ensures that we can pass a node address as part of the asynchronous
transition end notification, making it safe to fire the corresponding
DOM event on the node from the script thread. Without explicitly rooting
this node when the transition starts, we risk the node being GCed before
the transition is complete.
---
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Fixes unsafe transmute between `AtomicRefCell<PersistentLayoutData>` and `AtomicRefCell<PartialPersistentLayoutData>` which have different memory alignment in 32 bit archs leading to SEGV crashes. See https://github.com/servo/servo/issues/16817 and https://github.com/servo/servo/pull/16816
mem::align_of values in 32 bit archs (e.g. Android):
```
PersistentLayoutData 8
PersistentLayoutData 4
AtomicRefCell<PersistentLayoutData> 8
AtomicRefCell<PartialPersistentLayoutData> 4
```
mem::align_of values in 64 bit archs
```
PersistentLayoutData 8
PersistentLayoutData 8
AtomicRefCell<PersistentLayoutData> 8
AtomicRefCell<PartialPersistentLayoutData> 8
```
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The Gecko side doesn't propagate its quirks mode yet.
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Just use WebRender's ClipId directly. This will allow us to create and
use ReferenceFrames in the future, if we need to do that. It will also
make it easier to have Servo responsible for creating the root
scrolling area, which will allow removing some old hacks in the future.
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…so with proper alignment.
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This allows accurate line numbers when reporting stylesheet errors.
@jdm This is going to require some effort to merge my changes with other recent changes to `ParserContext`. Because of that I would appreciate a quick sanity check before I put the time into performing the merge.
For example, should I store the `offset` as a u64, or should it be an Option?
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This helps Stylo builds to actually use the new cssparser.
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Use some fake pseudo elements to style servo-specific boxes in servo. Also, Since for nested inline elements non-inheritable properties are properly stored in the inline context of an inline fragment, so get
rid of them on the style using empty pseudo to do cascading.
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- [X] These changes fix#15701.
- [X] These changes do not require new tests because there should already be WPTs for image loads.
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Before this PR, every object reflected in CSSOM is in `Arc<RwLock<_>>` to enable safe (synchronized) mutable aliasing. Acquiring all these locks has significant cost during selector matching:
* https://bugzilla.mozilla.org/show_bug.cgi?id=1311469
* https://bugzilla.mozilla.org/show_bug.cgi?id=1335941
* https://bugzilla.mozilla.org/show_bug.cgi?id=1339703
This PR introduce a mechanism to protect many objects with the same `RwLock` that only needs to be acquired once.
In Stylo, there is one such lock per process (in a `lazy_static`), used for everything.
I non-Stylo Servo, I originally intended to have one such lock per document (for author-origin stylesheets, and one per process for user-agent and user sytlesheets since they’re shared across documents, and never mutated anyway). However I failed to have the same document-specific (or pipeline-specific) `Arc` reachable from both `Document` nodes and `LayoutThread`. Recursively following callers lead me to include this `Arc` in `UnprivilegedPipelineContent`, but that needs to be serializable. So there is a second process-wide lock.
This was previously #15998, closed accidentally.
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- [x] These changes fix#16026 (github issue number if applicable).
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This is on top of https://github.com/servo/servo/pull/15928.
Now that cascade() gets a Device ref, we can use the default computed values
from there to avoid propagating that state all over the place.
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This is needed for https://bugzilla.mozilla.org/show_bug.cgi?id=1346481
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@jdm @SimonSapin
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1. Added ServoUrl as a parameter to report_error(...) of ParseErrorReporter trait.
2. I am not sure how to handle the case of impl ParseErrorReporter for CSSErrorReporter and MemoryHoleReporter, so have not made any changes (other than adding ServoUrl arg) to report_error implementations for these.
3. In StdoutErrorReporter i have added the ServoUrl arg to the info! function,
4. I would like to know if i am on the correct path and clarify what else needs to be done.
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As [suggested](https://github.com/servo/servo/issues/15592#issuecomment-280379805) by @jdm `Document::nodes_from_point` now triggers a reflow.
I added a new reftest that panics with `ERROR:servo: Tried to hit test without a DisplayList` if this patch is not applied.
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https://github.com/servo/rust-cssparser/pull/123
In particular, `match_ignore_ascii_case` now supports the full `match` syntax.
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<s>Depends on https://github.com/servo/rust-cssparser/pull/122.</s>
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The design of initiating network requests from the image cache thread was simple, but it makes it difficult to implement image loading that conforms to the HTML specification. These changes make the implementation of HTMLImageElement responsible for network requests for `<img>` elements, and CSS-based images (background-image, bullets, etc.) are requested by the script thread to ensure that the layout thread does not attempt to retain unsafe pointers to DOM nodes during asynchronous operations.
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This builds on https://github.com/servo/rust-cssparser/pull/118.
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Discussion and review in https://bugzilla.mozilla.org/show_bug.cgi?id=1336646
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selectors 0.15.1 supports AFFECTED_BY_ANIMATIONS and
AFFECTED_BY_TRANSITIONS, which are used by stylo animations.
Reference:
https://bugzilla.mozilla.org/show_bug.cgi?id=1317209
---
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- [X] These changes do not require tests because I only update the version, which only added two StyleRelations flags, and are not used yet
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<!-- Please describe your changes on the following line: -->
Implements cursor positioning in input elements (text/password) via mouse. The related issue is #10083 but is only covered partly.
This PR does **not** cover:
* positioning in textarea elements via mouse
* text selection in input/textarea elements via mouse
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Source-Repo: https://github.com/servo/servo
Source-Revision: 68a8e1bf2b57afe9bf6c4fb295bdc5dca099a9f6
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When we resolve style for an eagerly computed pseudo-element, such as an anonymous box, if there are no matching rules we currently just clone the parent's style. We should only do that if `inherit_all` is true, otherwise we should inherit only the inherited properties from the parent.
I was going to use `.unwrap_or_default()` on the result of looking up `precomputed_pseudo_element_decls`, but that didn't seem to work since that map lookup returns a reference and not a `Vec` itself.
r? @emilio
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Source-Repo: https://github.com/servo/servo
Source-Revision: ebd4a8b3ee1aab910ef714420a814912fec31e30
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Source-Repo: https://github.com/servo/servo
Source-Revision: df895cb80c460594f220b6cf28aa5869464d05ec
