This reduces reliance on the peek operation, which the generic stream
implementation does not support.
This also corrects the naming, since "tag" wasn't entirely correct for
some of the operations, where the tag takes up only part of a byte, with
the rest being reserved for data.
This used to be optional and was disabled in two cases:
- On a mouse move event during dragging; because double clicks are
only possible on mouse up events, this had no effect.
- On a mouse event for automatic cursor tracking; this has now gained
support for double click events.
Since it's always enabled now, we can remove the `bool` argument.
At the moment, there is no immediate advantage compared to just calling
the underlying functions directly, but having a common interface feels
more ergonomic (users don't have to care about how a type serializes)
and maybe we'll find a way to hide the actual implementation from direct
access some time in the future.
As a nearby comment says, "This is a terrible approximation".
This doesn't make things less terrible, but it does make things
more correct in the given framework of terribleness.
Fixes#17156.
Per CSS-SIZING-3, the min-content block size should be equivalent to the
max-content block size for some boxes.
Honoring this gives more correct results, and avoids unnecessary work in
many cases since the cached max-content size can be reused.
Grid containers were incorrectly represented as BlockContainer before.
Furthermore, GridFormattingContext had a bogus inheritance relationship
with BlockFormattingContext.
This patch brings our architecture closer to spec by making grid
containers be plain boxes and making GFC not inherit from BFC.
This is used in v2 profiles for the required 'desc' tag. In v2
profiles, it's also used by the 'dmnd', 'dmdd', 'scrd', 'vued' tags.
In v4 profiles, these all use 'mluc' instead (except for 'scrd', which
is no longer part of the spec in v4).
This fixes a few rendering bugs especially where the first or last
color stop had a zero alpha value. Note we can't just set the first
and last values on the gradient line to the first/last colors since
that might not be correct (e.g. have a transition hint).
In this patch only top level and not the more complicated for loop using
statements are supported. Also, as noted in the latest meeting of tc39
async parts of the spec are not stage 3 thus not included.
There were two problems:
1. They didn't handle surrogates
2. They used signed chars, leading to eg 0x00e4 being treated as 0xffe4
Also add a basic test that catches both issues.
There's some code duplication with Utf16CodePointIterator::operator*(),
but let's get things working first.
