This patch adds support for script elements with the type attribute set
to "module". As a first cut the changes are mainly focused around inline
scripts.
Co-authored-by: davidot <davidot@serenityos.org>
This patch adds support for the HostGetSupportedImportAssertions and
HostResolveImportedModule host hooks.
Co-authored-by: davidot <davidot@serenityos.org>
This patch adds various algorithms required to fetch and link module
scripts.
Some parts such as actually creating a request and error handling are
not implemented or use temporary non spec compliant code to get us
further.
Co-authored-by: davidot <davidot@serenityos.org>
This patchs adds the Web::HTML::Script subclass ModuleScript and
JavaScriptModuleScript as a type of ModuleScript as well as various
algorithms related to JavaScript module scripts.
Co-authored-by: davidot <davidot@serenityos.org>
This patch adds the ModuleMap class used to keep track of the type and
url of a module as well as the fetching state associated. Each
environment settings object now also has a module map.
Previously we would simply check the an input string against a list of
mime type essences, ignoring that the input might not be a valid mime
type or contain parameters.
This patch moves the helpers into the MimeSniff namespace and properly
parses an input string before comparing the essence.
This is a more correct check than !is_inline_block(), as it now enters
all elements that have inline behavior on the outside and flow behavior
on the inside.
These were totally ad-hoc before, is_inline() was based on a boolean
flag on Layout::Node that we set in various situations.
Meanwhile, is_inline_block() was a combination on is_inline() plus a
type check to see if the layout node inherited from BlockContainer.
This patch replaces the above mess with simple lookups of the CSS
display value. Note that layout nodes without their own style (i.e text
nodes) are automatically assumed to be inline and non-blocks. This has
to be special-cased since layout nodes without style will consult the
style of their parent, so without short-circuiting this would break.
This is one of many small steps towards being able to remove the ad-hoc
Layout::Node::is_inline() in favor of honoring the CSS display value
everywhere instead.
We always create a Layout::InitialContainingBlock for the ICB, but in a
future where we always honor the CSS::Display everywhere, we need to
make sure everyone has the right display values.
With the addition of the 'fetch params' struct, the single ownership
model we had so far falls apart completely.
Additionally, this works nicely for FilteredResponse's internal response
instead of risking a dangling reference.
Replacing the public constructor with a create() function also found a
few instances of a Request being stack-allocated!
...and clean up afterwards, of course. Additionally to preparing to run
a script, we also prepare to run a callback here. This matches WebIDL's
invoke_callback() / call_user_object_operation() functions, and prevents
a crash in host_make_job_callback() when getting the incumbent settings
object.
Running the following JS no longer crashes after this change:
```js
new Promise((resolve) => {
setTimeout(resolve, 0);
}).then(() => {
return Promise.reject();
});
```
See further discussion/investigation here:
995019647210268246241026922985
Many thanks to Luke for doing the hard work here, tracking this down,
and suggesting the fix!
Co-authored-by: Luke Wilde <lukew@serenityos.org>
This includes punting on the actual file picker implementation all the
way out to the PageClient. It's likely that some of the real details
should be implemented somewhere closer, like the BrowsingContext or the
Page, but we'll get there.
For now, this allows https://copy.sh/v86 to load the emulation of the
preselected images all the way until it hits a call to
URL.createObjectURL.
We parse the arguments that come in, but since we don't yet track
scrollable overflow, we can't do the full "scroll an element into view"
algorithm. For now, we just call out to the PageClient and ask it to
bring the nearest principal box into the visible viewport.
When we have nested flexbox layouts within one another, and the child
context wants to call up to the parent context and ask for help with
dimensioning the child flex container, we now simply do nothing.
As far as I can tell, this works out just fine, since the child flex
container will already be dimensioned by the flex layout algorithm.
Previously, FlexFormattingContext would calculate intrinsic sizes in
both axes simultaneously, despite only one being needed.
This patch reduces the amount of unnecessary work by only calculating
the requested intrinsic size.
After speaking with fantasai at CSSWG about this, it turns out I had
misunderstood intrinsic heights. I originally believed all intrinsic
sizes had to be computed with no influence from the surrounding context.
As it turns out, intrinsic heights *are* influenced by the available
width, since it's needed to determine where lines break.
The APIs for calculating min-content and max-content heights now take
the available width as inputs. This instantly improves layout in many
cases where we'd previously make things way too wide.
