Make Servo match the focus bits of the HTML specification a bit more by
storing a `FocusableArea` as the currently focused thing in a
`Document` instead of an optional `Element`. There is always a focused
area of a `Document`, defaulting to the viewport. This is important to
support the case of focused navigables and image maps parts in the
future.
Some focus chain debugging code has been removed as the focus chain
concept needs to be reworked to match the specification more closely.
Testing: This should not change behavior so existing tests should
suffice.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Servo has lots of `LayoutXYZHelper` traits that are used to define
additional methods on `LayoutDom<XYZ>`. We can replace them with `impl
LayoutDom<XYZ>` blocks, reducing the number of LoC and making it easier
to add or modify methods.
Testing: These should be covered by existing tests
Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
This is another part of moving more operations safely to unrooted
iterators.
- Some uses of inclusively_*_siblings
- Some uses of children()
- Some uses of child_elements()
Testing: Compilation is the test as we only use previously made iterator
functions.
Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
Do not `cancel_animations_for_node` for this function.
We can then reuse it more often.
Testing: Just a refactor.
Signed-off-by: Euclid Ye <yezhizhenjiakang@gmail.com>
This makes the most basic tests pass for the font-size command. Future
PR's will continue the work,
but since this is already large enough, this is a good save point.
Part of #25005
Signed-off-by: Tim van der Lippe <tvanderlippe@gmail.com>
A lot (and I mean, really a lot) depends on these constructors.
Therefore, this is the one spaghetti ball that I could extract and
convert all `can_gc` to `cx`. There are some new introductions of
`temp_cx` in the callbacks of the servo parser, but we already had some
in other callbacks.
Part of #40600
Testing: It compiles
Signed-off-by: Tim van der Lippe <tvanderlippe@gmail.com>
This continues #43045
Changelog:
- Upstream:
74ddab4091...6de1071549
- Servo fixups:
9f2f4f3f1b...6cfce6f329
Stylo tracking issue: https://github.com/servo/stylo/issues/347
Summary of improvements:
- Adding support for the CSS-wide `revert-rule` keyword
- `::details-content` becomes element-backed, thus accepting nested
pseudo-elements like `::details-content::before`.
- Custom properties can now be registered using dashed idents in their
syntax
- Various `attr()` improvements
Testing: Various WPT improvements
---------
Signed-off-by: Oriol Brufau <obrufau@igalia.com>
This continues the work to split up the large DOM structs. In this case
we create a helper struct to store focus-related state much like
`DocumentEventHandler`.
Testing: This is mostly code motion, so should be covered by existing
tests.
Fixes: #43720
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
`DocumentOrShadowRoot#activeElement` should return retargeted results.
What that means is that if the DOM anchor of the `Document`'s focused
focusable area is within a shadow root, `Document#activeElement` should
return the shadow host. This change implements that behavior, properly
returning the `activeElement` from both `Document` and `ShadowRoot`.
Testing: This causes a decent number of WPT tests and subtests to start
passing. One subtest starts to fail, because it uses the `autofocus`
attribute
which we do not yet support.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
When navigating to a fragment the specification says to run the focusing
steps. This is possible now that the focusing steps are properly
exposed. This change also adds support for the fallback option, which is
used when the focus target is not associated with a focuable area. In
this case the fallback is to focus the viewport.
Testing: This change adds a new WPT for this behavior, which was
seemingly not tested before.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
`HTMLOrSVGElement#focus` specifies the "scroll into view" steps should
be run after focusing. This was happening implicitly as part of the
`Document`'s implementation of the "focusing steps." That behavior is
not in the specification, so this change moves the scrolling call to
where it is specified. Along with making the code match the
specification, this change simplifies it as well.
Testing: This should not modify behavior, so existing tests should
suffice.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
For years Servo has had the concept of a focus transaction which was
used only to allow falling back to focusing the viewport when focusing a
clicked element failed. As this concept isn't part of the specification,
this change removes it.
Instead, a `FocusableArea` (a specification concept) is passed to
the `Document` focusing code. A `FocusableArea` might also be the
`Document`'s viewport.
As part of this change, some focus-related methods are moved to `Node`
from `Element` as the `Document` is not an `Element`. This brings the
code closer to implementing the "focusing steps" from the specification.
Testing: This should not change behavior and is thus covered by existing
tests.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Moves node interfaces into script/dom/node/ module from script/dom/.
Testing: Just a refactor shouldn't need any testing.
Fixes: Part of #38901
Signed-off-by: Jayanta Pradhan <pradhanjayanta91@gmail.com>
