It returns a PaintableBox (a PaintableWithLines, to be specific), not a
'PaintBox'. paintable_box() without the cast is already available
through BlockContainer's Box base class, we don't need to shadow it.
We are currently using the fetch controller's terminate() method to stop
ongoing fetches when the HTMLMediaElement load algorithm is invoked.
This method ultimately causes the fetch response to be a network error,
which we propagate through the HTMLMediaElement's error event. This can
cause websites, such as Steam, to avoid attempting to play any video.
The spec does not actually specify what it means to "stop" or "cancel" a
fetching process. But we should not use terminate() as that is a defined
spec method, and the spec does tend to indicate when that method should
be used (e.g. as it does in XMLHttpRequest).
The HTMLMediaElement will need to stop fetching processes when its load
algorithm is invoked while a fetch is ongoing. We don't have a way to
really stop the process, due to the way it runs on nested deferred task
invocations. So for now, this swaps the fetch callbacks (e.g. to process
a fetch response) with empty callbacks.
This is the first step towards implementing the new "navigable" concept
from the HTML spec.
Co-authored-by: Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
The "browsing context container" concept in the HTML spec has been
replaced with "navigable container". Renaming this is the first step of
many towards implementing the new world.
Co-authored-by: Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
Now that LengthStyleValue never contains `auto`, IdentifierStyleValue is
the only type that can hold an identifier. This lets us remove a couple
of virtual methods from StyleValue.
I've kept `has_auto()` and `to_identifier()` for convenience, but they
are now simple non-virtual methods.
Previously, whether trying to parse a `<length>` or `<dimension>`, we
would accept `auto` and produce a `LengthStyleValue` from it. This
would fool the `property_accepts_value()` into allowing `auto` where it
does not belong, if the property did accept lengths.
Of the few places in the parser that called `parse_dimension_value()` or
`parse_length()`, none of them were expecting it to accept `auto`, so
this fixes those too. :^)
Currently, `property_accepts_value()` always returns `true` if the
property is a shorthand. (This is a bug, and should actually be fixed
properly at some point...) This means that all identifiers are caught
here, including `auto`, which should be handled by the `flex-basis`
branch instead.
This works currently because `auto` is a LengthStyleValue, but that's
about to change!
This code assumed that `auto` was always stored as a LengthStyleValue,
which will not be true in the next commit. (And was not a safe
assumption to make anyway.)
This is a tiny bit messy because:
- The spec says we should expand this to `flex: <flex-grow> 1 0`
- All major engines expand it to `flex: <flex-grow> 1 0%`
Spec bug: https://github.com/w3c/csswg-drafts/issues/5742
This is far from perfect, but let's at least make an attempt at laying
out <svg> when encountering it inside another <svg>.
This makes https://awesomekling.substack.com actually load and render
instead of asserting. :^)
The spec defines a Permissions Policy to control some browser behaviors
on a per-origin basis. Management of these permissions live in their own
spec: https://w3c.github.io/webappsec-permissions-policy/
This implements a somewhat ad-hoc Permissions Policy for autoplaying
media elements. We will need to implement the entire policy spec for
this to be more general.
Alphabetically sort everything (namespaces and forward declarations
within namespaces), and de-duplicate repeated namespaces (namely the
Web namespace appeared twice).
Although the spec doesn't mention it, if a flex item has box-sizing:
border-box, and the specified size suggestion is a definite size, we
have to subtract the borders and padding from the size before using it.
This fixes an issue seen in "This Week in Ladybird #4" where the
screenshots ended up in one long vertical stack instead of paired up
2 by 2.
Per SVG2, any coordinate pairs following a moveto command should be
treated as implicit lineto commands with the same absoluteness as the
moveto command.
This attribute is used to define how the viewBox should be scaled.
Previously the behaviour implemented was that of "xMidYMid meet", now
all of them work (expect none :P).
With this the Discord login backend is now correctly scaled/positioned.
This also brings our SVG code a little closer to the spec! With spec
comments and all :^)
(Minor non-visible update to layout tests)
When clicking on the media timeline, compute the percentage along the
timeline's width the user clicked, and set the playback time to the same
percentage of the video's duration.
When the control bar is shown, do not toggle playback when clicking on
the control bar, unless the click target is the playback button. This
will let us implement clicking on the timeline to seek.
Note that this requires caching some layout rects on the video element.
We need to remember where the corresponding layout boxes are, and we
can't cache them on the layout box, as that may be destroyed any time.
The on_end_of_stream callback was added to notify clients that video
playback has stopped when we didn't have a way to retrieve the playback
state from Video::PlaybackManager. Now that we do, we should consolidate
on using the on_playback_state_change callback to detect such changes.
When sizing a flex container with flex-direction:column under a
max-content height constraint, we were incorrectly truncating the
infinite available height to 0 when collecting flex items into lines.
This caused us to put every flex item in its own flex line, which is the
complete opposite of what we want during max-content intrinsic sizing,
as the layout would grow wide but not tall.
