5608bc4eaf
HTMLObjectElement will need to be both a FormAssociatedElement and a
BrowsingContextContainer. Currently, both of these classes inherit from
HTMLElement. This can work in C++, but is generally frowned upon, and
doesn't play particularly well with the rest of LibWeb.
Instead, we can essentially revert commit 3bb5c62 to remove HTMLElement
from FormAssociatedElement's hierarchy. This means that objects such as
HTMLObjectElement individually inherit from FormAssociatedElement and
HTMLElement now.
Some caveats are:
* FormAssociatedElement still needs to know when the HTMLElement is
inserted into and removed from the DOM. This hook is automatically
injected via a macro now, while still allowing classes like
HTMLInputElement to also know when the element is inserted.
* Casting from a DOM::Element to a FormAssociatedElement is now a
sideways cast, rather than directly following an inheritance chain.
This means static_cast cannot be used here; but we can safely use
dynamic_cast since the only 2 instances of this already use RTTI to
verify the cast.
87 lines
2.6 KiB
C++
87 lines
2.6 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/HTML/HTMLButtonElement.h>
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#include <LibWeb/HTML/HTMLFormElement.h>
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namespace Web::HTML {
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HTMLButtonElement::HTMLButtonElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: HTMLElement(document, move(qualified_name))
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{
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// https://html.spec.whatwg.org/multipage/form-elements.html#the-button-element:activation-behaviour
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activation_behavior = [this](auto&) {
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// 1. If element is disabled, then return.
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if (!enabled())
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return;
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// 2. If element does not have a form owner, then return.
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if (!form())
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return;
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// 3. If element's node document is not fully active, then return.
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if (!this->document().is_fully_active())
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return;
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// 4. Switch on element's type attribute's state:
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switch (type_state()) {
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case TypeAttributeState::Submit:
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// Submit Button
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// Submit element's form owner from element.
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form()->submit_form(this);
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break;
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case TypeAttributeState::Reset:
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// Reset Button
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// FIXME: Reset element's form owner.
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TODO();
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break;
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case TypeAttributeState::Button:
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// Button
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// Do nothing.
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break;
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default:
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VERIFY_NOT_REACHED();
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}
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};
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}
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HTMLButtonElement::~HTMLButtonElement() = default;
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String HTMLButtonElement::type() const
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{
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auto value = attribute(HTML::AttributeNames::type);
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#define __ENUMERATE_HTML_BUTTON_TYPE_ATTRIBUTE(keyword, _) \
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if (value.equals_ignoring_case(#keyword)) \
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return #keyword;
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ENUMERATE_HTML_BUTTON_TYPE_ATTRIBUTES
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#undef __ENUMERATE_HTML_BUTTON_TYPE_ATTRIBUTE
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// The missing value default and invalid value default are the Submit Button state.
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return "submit";
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}
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HTMLButtonElement::TypeAttributeState HTMLButtonElement::type_state() const
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{
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auto value = attribute(HTML::AttributeNames::type);
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#define __ENUMERATE_HTML_BUTTON_TYPE_ATTRIBUTE(keyword, state) \
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if (value.equals_ignoring_case(#keyword)) \
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return HTMLButtonElement::TypeAttributeState::state;
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ENUMERATE_HTML_BUTTON_TYPE_ATTRIBUTES
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#undef __ENUMERATE_HTML_BUTTON_TYPE_ATTRIBUTE
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// The missing value default and invalid value default are the Submit Button state.
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return HTMLButtonElement::TypeAttributeState::Submit;
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}
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void HTMLButtonElement::set_type(String const& type)
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{
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set_attribute(HTML::AttributeNames::type, type);
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}
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}
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