ladybird/Userland/Libraries/LibWeb/HTML/HTMLButtonElement.cpp
Luke Wilde 4fa270d81f LibWeb: Implement <button>'s activation behaviour
This allows us to submit forms from <button> elements and not just
<input type="submit">

This allows Discord to progress past the username registration :^)
2022-03-01 23:19:41 +01:00

90 lines
2.6 KiB
C++

/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/DOM/Document.h>
#include <LibWeb/HTML/HTMLButtonElement.h>
#include <LibWeb/HTML/HTMLFormElement.h>
namespace Web::HTML {
HTMLButtonElement::HTMLButtonElement(DOM::Document& document, DOM::QualifiedName qualified_name)
: FormAssociatedElement(document, move(qualified_name))
{
// https://html.spec.whatwg.org/multipage/form-elements.html#the-button-element:activation-behaviour
activation_behavior = [this](auto&) {
// 1. If element is disabled, then return.
if (!enabled())
return;
// 2. If element does not have a form owner, then return.
if (!form())
return;
// 3. If element's node document is not fully active, then return.
if (!this->document().is_fully_active())
return;
// 4. Switch on element's type attribute's state:
switch (type_state()) {
case TypeAttributeState::Submit:
// Submit Button
// Submit element's form owner from element.
form()->submit_form(this);
break;
case TypeAttributeState::Reset:
// Reset Button
// FIXME: Reset element's form owner.
TODO();
break;
case TypeAttributeState::Button:
// Button
// Do nothing.
break;
default:
VERIFY_NOT_REACHED();
}
};
}
HTMLButtonElement::~HTMLButtonElement()
{
}
String HTMLButtonElement::type() const
{
auto value = attribute(HTML::AttributeNames::type);
#define __ENUMERATE_HTML_BUTTON_TYPE_ATTRIBUTE(keyword, _) \
if (value.equals_ignoring_case(#keyword)) \
return #keyword;
ENUMERATE_HTML_BUTTON_TYPE_ATTRIBUTES
#undef __ENUMERATE_HTML_BUTTON_TYPE_ATTRIBUTE
// The missing value default and invalid value default are the Submit Button state.
return "submit";
}
HTMLButtonElement::TypeAttributeState HTMLButtonElement::type_state() const
{
auto value = attribute(HTML::AttributeNames::type);
#define __ENUMERATE_HTML_BUTTON_TYPE_ATTRIBUTE(keyword, state) \
if (value.equals_ignoring_case(#keyword)) \
return HTMLButtonElement::TypeAttributeState::state;
ENUMERATE_HTML_BUTTON_TYPE_ATTRIBUTES
#undef __ENUMERATE_HTML_BUTTON_TYPE_ATTRIBUTE
// The missing value default and invalid value default are the Submit Button state.
return HTMLButtonElement::TypeAttributeState::Submit;
}
void HTMLButtonElement::set_type(String const& type)
{
set_attribute(HTML::AttributeNames::type, type);
}
}