ladybird/Userland/Libraries/LibWeb/CSS/CSSFontFaceRule.cpp
Timothy Flynn 2692db8699 LibJS+Everywhere: Allow Cell::initialize overrides to throw OOM errors
Note that as of this commit, there aren't any such throwers, and the
call site in Heap::allocate will drop exceptions on the floor. This
commit only serves to change the declaration of the overrides, make sure
they return an empty value, and to propagate OOM errors frm their base
initialize invocations.
2023-01-29 00:02:45 +00:00

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/*
* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/Bindings/CSSFontFaceRulePrototype.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/CSS/CSSFontFaceRule.h>
#include <LibWeb/CSS/Serialize.h>
namespace Web::CSS {
CSSFontFaceRule* CSSFontFaceRule::create(JS::Realm& realm, FontFace&& font_face)
{
return realm.heap().allocate<CSSFontFaceRule>(realm, realm, move(font_face));
}
CSSFontFaceRule::CSSFontFaceRule(JS::Realm& realm, FontFace&& font_face)
: CSSRule(realm)
, m_font_face(move(font_face))
{
}
JS::ThrowCompletionOr<void> CSSFontFaceRule::initialize(JS::Realm& realm)
{
MUST_OR_THROW_OOM(Base::initialize(realm));
set_prototype(&Bindings::ensure_web_prototype<Bindings::CSSFontFaceRulePrototype>(realm, "CSSFontFaceRule"));
return {};
}
CSSStyleDeclaration* CSSFontFaceRule::style()
{
// FIXME: Return a CSSStyleDeclaration subclass that directs changes to the FontFace.
return nullptr;
}
// https://www.w3.org/TR/cssom/#ref-for-cssfontfacerule
DeprecatedString CSSFontFaceRule::serialized() const
{
StringBuilder builder;
// The result of concatenating the following:
// 1. The string "@font-face {", followed by a single SPACE (U+0020).
builder.append("@font-face { "sv);
// 2. The string "font-family:", followed by a single SPACE (U+0020).
builder.append("font-family: "sv);
// 3. The result of performing serialize a string on the rules font family name.
serialize_a_string(builder, m_font_face.font_family());
// 4. The string ";", i.e., SEMICOLON (U+003B).
builder.append(';');
// 5. If the rules associated source list is not empty, follow these substeps:
if (!m_font_face.sources().is_empty()) {
// 1. A single SPACE (U+0020), followed by the string "src:", followed by a single SPACE (U+0020).
builder.append(" src: "sv);
// 2. The result of invoking serialize a comma-separated list on performing serialize a URL or serialize a LOCAL for each source on the source list.
serialize_a_comma_separated_list(builder, m_font_face.sources(), [&](FontFace::Source source) {
if (source.url.cannot_be_a_base_url()) {
serialize_a_url(builder, source.url.to_deprecated_string());
} else {
serialize_a_local(builder, source.url.to_deprecated_string());
}
// NOTE: No spec currently exists for format()
if (source.format.has_value()) {
builder.append("format(\""sv);
serialize_a_string(builder, source.format.value());
builder.append("\")"sv);
}
});
// 3. The string ";", i.e., SEMICOLON (U+003B).
builder.append(';');
}
// 6. If rules associated unicode-range descriptor is present, a single SPACE (U+0020), followed by the string "unicode-range:", followed by a single SPACE (U+0020), followed by the result of performing serialize a <'unicode-range'>, followed by the string ";", i.e., SEMICOLON (U+003B).
builder.append(" unicode-range: "sv);
serialize_unicode_ranges(builder, m_font_face.unicode_ranges());
builder.append(';');
// FIXME: 7. If rules associated font-variant descriptor is present, a single SPACE (U+0020),
// followed by the string "font-variant:", followed by a single SPACE (U+0020),
// followed by the result of performing serialize a <'font-variant'>,
// followed by the string ";", i.e., SEMICOLON (U+003B).
// FIXME: 8. If rules associated font-feature-settings descriptor is present, a single SPACE (U+0020),
// followed by the string "font-feature-settings:", followed by a single SPACE (U+0020),
// followed by the result of performing serialize a <'font-feature-settings'>,
// followed by the string ";", i.e., SEMICOLON (U+003B).
// FIXME: 9. If rules associated font-stretch descriptor is present, a single SPACE (U+0020),
// followed by the string "font-stretch:", followed by a single SPACE (U+0020),
// followed by the result of performing serialize a <'font-stretch'>,
// followed by the string ";", i.e., SEMICOLON (U+003B).
// FIXME: 10. If rules associated font-weight descriptor is present, a single SPACE (U+0020),
// followed by the string "font-weight:", followed by a single SPACE (U+0020),
// followed by the result of performing serialize a <'font-weight'>,
// followed by the string ";", i.e., SEMICOLON (U+003B).
// FIXME: 11. If rules associated font-style descriptor is present, a single SPACE (U+0020),
// followed by the string "font-style:", followed by a single SPACE (U+0020),
// followed by the result of performing serialize a <'font-style'>,
// followed by the string ";", i.e., SEMICOLON (U+003B).
// 12. A single SPACE (U+0020), followed by the string "}", i.e., RIGHT CURLY BRACKET (U+007D).
builder.append(" }"sv);
return builder.to_deprecated_string();
}
}