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ladybird/Userland/Libraries/LibWeb/HTML/AttributeNames.cpp

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LibWeb: Add cached global attribute name FlyStrings Instead of creating extremely common FlyStrings like "id" and "class" on demand every time they are needed, we now have AttributeNames.h, which provides Web::HTML::AttributeNames::{id,class_} This avoids a bunch of string allocations during selector matching.
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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
Everything: Move to SPDX license identifiers in all files. SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
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* SPDX-License-Identifier: BSD-2-Clause
LibWeb: Add cached global attribute name FlyStrings Instead of creating extremely common FlyStrings like "id" and "class" on demand every time they are needed, we now have AttributeNames.h, which provides Web::HTML::AttributeNames::{id,class_} This avoids a bunch of string allocations during selector matching.
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*/
LibWeb: Fix #include <LibWeb/{DOM => HTML}/AttributeNames.h> This file has been moved from DOM/ to HTML/ in a784090b91139776b26fbac2a8426de3abdea308.
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#include <LibWeb/HTML/AttributeNames.h>
LibWeb: Add cached global attribute name FlyStrings Instead of creating extremely common FlyStrings like "id" and "class" on demand every time they are needed, we now have AttributeNames.h, which provides Web::HTML::AttributeNames::{id,class_} This avoids a bunch of string allocations during selector matching.
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Everywhere: Use nested namespace qualifiers
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namespace Web::HTML {
LibWeb: Add cached global attribute name FlyStrings Instead of creating extremely common FlyStrings like "id" and "class" on demand every time they are needed, we now have AttributeNames.h, which provides Web::HTML::AttributeNames::{id,class_} This avoids a bunch of string allocations during selector matching.
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namespace AttributeNames {
LibWeb: Port AttributeNames to FlyString
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#define __ENUMERATE_HTML_ATTRIBUTE(name) FlyString name;
LibWeb: Use HTML::AttributeNames::foo instead of FlyString("foo") To avoid the costly instantiation of FlyStrings whenever we're looking up attributes, use the premade HTML::AttributeNames globals. :^)
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ENUMERATE_HTML_ATTRIBUTES
#undef __ENUMERATE_HTML_ATTRIBUTE
LibWeb: Add cached global attribute name FlyStrings Instead of creating extremely common FlyStrings like "id" and "class" on demand every time they are needed, we now have AttributeNames.h, which provides Web::HTML::AttributeNames::{id,class_} This avoids a bunch of string allocations during selector matching.
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AK: Make "foo"_fly_string infallible Stop worrying about tiny OOMs. Work towards #20405.
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void initialize_strings()
LibWeb: Add cached global attribute name FlyStrings Instead of creating extremely common FlyStrings like "id" and "class" on demand every time they are needed, we now have AttributeNames.h, which provides Web::HTML::AttributeNames::{id,class_} This avoids a bunch of string allocations during selector matching.
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{
LibWeb: s_initialized should be static in the AttributeNames initialiser
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static bool s_initialized = false;
LibWeb: Initialize static web strings during main-thread VM creation These are currently initialized in a [[gnu::constructor]], which has a weird initialization order. These constructors are invoked before main() and, incidentally, before any user-defined default constructors of the static strings they are initializing. This will become an issue when these strings are ported to FlyString, which has a user-defined default constructor. In that scenario, when the FlyString constructor is executed after the [[gnu::constructor]], the strings will be "reset" to the empty string. Instead of relying on a non-standard compiler extension here, let's just initialize these strings explicitly during main-thread VM creation, as this now happens in WebContent's main().
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VERIFY(!s_initialized);
LibWeb: Use HTML::AttributeNames::foo instead of FlyString("foo") To avoid the costly instantiation of FlyStrings whenever we're looking up attributes, use the premade HTML::AttributeNames globals. :^)
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#define __ENUMERATE_HTML_ATTRIBUTE(name) \
LibWeb: Port AttributeNames to FlyString
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name = #name##_fly_string;
LibWeb: Use HTML::AttributeNames::foo instead of FlyString("foo") To avoid the costly instantiation of FlyStrings whenever we're looking up attributes, use the premade HTML::AttributeNames globals. :^)
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ENUMERATE_HTML_ATTRIBUTES
#undef __ENUMERATE_HTML_ATTRIBUTE
LibWeb: Add almost all obsolete but required IDL attributes As according to https://html.spec.whatwg.org/multipage/obsolete.html Section 16.3 "Requirements for implementations" Not all of these attributes are included due to requiring a bit more functionality.
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// NOTE: Special cases for C++ keywords.
LibWeb: Port AttributeNames to FlyString
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class_ = "class"_fly_string;
for_ = "for"_fly_string;
default_ = "default"_fly_string;
char_ = "char"_fly_string;
LibWeb: Add HTML elements to factories, add missing tags and attributes This is mostly to get the grunt work of the way. This is split up into multiple commits to hopefully make it more manageable to review. Note that these are not full implementations, and the bindings mostly get the low hanging fruit. Also implements some attributes that I kept out because they had dashes in them. Therefore, this closes #2905.
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// NOTE: Special cases for attributes with dashes in them.
LibWeb: Port AttributeNames to FlyString
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accept_charset = "accept-charset"_fly_string;
http_equiv = "http-equiv"_fly_string;
LibWeb: Use HTML::AttributeNames::foo instead of FlyString("foo") To avoid the costly instantiation of FlyStrings whenever we're looking up attributes, use the premade HTML::AttributeNames globals. :^)
2020-06-03 20:51:28 +02:00
LibWeb: Add cached global attribute name FlyStrings Instead of creating extremely common FlyStrings like "id" and "class" on demand every time they are needed, we now have AttributeNames.h, which provides Web::HTML::AttributeNames::{id,class_} This avoids a bunch of string allocations during selector matching.
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s_initialized = true;
}
}
LibWeb: Define method to check if an attribute is a boolean attribute
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// https://html.spec.whatwg.org/#boolean-attribute
LibWeb: Port AttributeNames to FlyString
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bool is_boolean_attribute(FlyString const& attribute)
LibWeb: Define method to check if an attribute is a boolean attribute
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{
// NOTE: This is the list of attributes from https://html.spec.whatwg.org/#attributes-3
// with a Value column value of "Boolean attribute".
return attribute.is_one_of(
AttributeNames::allowfullscreen,
AttributeNames::async,
AttributeNames::autofocus,
AttributeNames::autoplay,
AttributeNames::checked,
AttributeNames::controls,
AttributeNames::default_,
AttributeNames::defer,
AttributeNames::disabled,
AttributeNames::formnovalidate,
AttributeNames::inert,
AttributeNames::ismap,
AttributeNames::itemscope,
AttributeNames::loop,
AttributeNames::multiple,
AttributeNames::muted,
AttributeNames::nomodule,
AttributeNames::novalidate,
AttributeNames::open,
AttributeNames::playsinline,
AttributeNames::readonly,
AttributeNames::required,
AttributeNames::reversed,
AttributeNames::selected);
}
LibWeb: Add cached global attribute name FlyStrings Instead of creating extremely common FlyStrings like "id" and "class" on demand every time they are needed, we now have AttributeNames.h, which provides Web::HTML::AttributeNames::{id,class_} This avoids a bunch of string allocations during selector matching.
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}
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