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HTMLFormControlElement.cpp
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HTMLFormControlElement.cpp
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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2001 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2004-2022 Apple Inc. All rights reserved.
* (C) 2006 Alexey Proskuryakov (ap@nypop.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "HTMLFormControlElement.h"
#include "Autofill.h"
#include "ControlStates.h"
#include "ElementInlines.h"
#include "Event.h"
#include "EventHandler.h"
#include "EventNames.h"
#include "FormAssociatedElement.h"
#include "Frame.h"
#include "FrameView.h"
#include "HTMLButtonElement.h"
#include "HTMLFormElement.h"
#include "HTMLInputElement.h"
#include "HTMLParserIdioms.h"
#include "PopoverData.h"
#include "PseudoClassChangeInvalidation.h"
#include "Quirks.h"
#include "RenderBox.h"
#include "RenderTheme.h"
#include "SelectionRestorationMode.h"
#include "Settings.h"
#include "StyleTreeResolver.h"
#include "ValidationMessage.h"
#include <wtf/IsoMallocInlines.h>
#include <wtf/Ref.h>
#include <wtf/SetForScope.h>
#include <wtf/Vector.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLFormControlElement);
using namespace HTMLNames;
HTMLFormControlElement::HTMLFormControlElement(const QualifiedName& tagName, Document& document, HTMLFormElement* form)
: HTMLElement(tagName, document)
, ValidatedFormListedElement(form)
, m_isRequired(false)
, m_valueMatchesRenderer(false)
, m_wasChangedSinceLastFormControlChangeEvent(false)
{
setHasCustomStyleResolveCallbacks();
}
HTMLFormControlElement::~HTMLFormControlElement()
{
clearForm();
}
String HTMLFormControlElement::formEnctype() const
{
const AtomString& formEnctypeAttr = attributeWithoutSynchronization(formenctypeAttr);
if (formEnctypeAttr.isNull())
return emptyString();
return FormSubmission::Attributes::parseEncodingType(formEnctypeAttr);
}
void HTMLFormControlElement::setFormEnctype(const AtomString& value)
{
setAttributeWithoutSynchronization(formenctypeAttr, value);
}
String HTMLFormControlElement::formMethod() const
{
auto& formMethodAttr = attributeWithoutSynchronization(formmethodAttr);
if (formMethodAttr.isNull())
return emptyString();
bool dialogElementEnabled = document().settings().dialogElementEnabled();
return FormSubmission::Attributes::methodString(FormSubmission::Attributes::parseMethodType(formMethodAttr, dialogElementEnabled), dialogElementEnabled);
}
void HTMLFormControlElement::setFormMethod(const AtomString& value)
{
setAttributeWithoutSynchronization(formmethodAttr, value);
}
bool HTMLFormControlElement::formNoValidate() const
{
return hasAttributeWithoutSynchronization(formnovalidateAttr);
}
String HTMLFormControlElement::formAction() const
{
const AtomString& value = attributeWithoutSynchronization(formactionAttr);
if (value.isEmpty())
return document().url().string();
return document().completeURL(stripLeadingAndTrailingHTMLSpaces(value)).string();
}
void HTMLFormControlElement::setFormAction(const AtomString& value)
{
setAttributeWithoutSynchronization(formactionAttr, value);
}
Node::InsertedIntoAncestorResult HTMLFormControlElement::insertedIntoAncestor(InsertionType insertionType, ContainerNode& parentOfInsertedTree)
{
HTMLElement::insertedIntoAncestor(insertionType, parentOfInsertedTree);
ValidatedFormListedElement::insertedIntoAncestor(insertionType, parentOfInsertedTree);
return InsertedIntoAncestorResult::NeedsPostInsertionCallback;
}
void HTMLFormControlElement::didFinishInsertingNode()
{
HTMLElement::didFinishInsertingNode();
ValidatedFormListedElement::didFinishInsertingNode();
}
void HTMLFormControlElement::didMoveToNewDocument(Document& oldDocument, Document& newDocument)
{
HTMLElement::didMoveToNewDocument(oldDocument, newDocument);
ValidatedFormListedElement::didMoveToNewDocument();
}
void HTMLFormControlElement::removedFromAncestor(RemovalType removalType, ContainerNode& oldParentOfRemovedTree)
{
HTMLElement::removedFromAncestor(removalType, oldParentOfRemovedTree);
ValidatedFormListedElement::removedFromAncestor(removalType, oldParentOfRemovedTree);
}
void HTMLFormControlElement::parseAttribute(const QualifiedName& name, const AtomString& value)
{
if (name == requiredAttr) {
bool newRequired = !value.isNull();
if (m_isRequired != newRequired) {
Style::PseudoClassChangeInvalidation requiredInvalidation(*this, { { CSSSelector::PseudoClassRequired, newRequired }, { CSSSelector::PseudoClassOptional, !newRequired } });
m_isRequired = newRequired;
requiredStateChanged();
}
} else {
HTMLElement::parseAttribute(name, value);
ValidatedFormListedElement::parseAttribute(name, value);
}
}
void HTMLFormControlElement::finishParsingChildren()
{
HTMLElement::finishParsingChildren();
if (!FormController::ownerForm(*this))
restoreFormControlStateIfNecessary();
}
void HTMLFormControlElement::disabledStateChanged()
{
ValidatedFormListedElement::disabledStateChanged();
if (renderer() && renderer()->style().hasEffectiveAppearance())
renderer()->theme().stateChanged(*renderer(), ControlStates::States::Enabled);
}
void HTMLFormControlElement::readOnlyStateChanged()
{
ValidatedFormListedElement::readOnlyStateChanged();
// Some input pseudo classes like :in-range/out-of-range change based on the readonly state.
// FIXME: Use PseudoClassChangeInvalidation instead for :has() support and more efficiency.
invalidateStyleForSubtree();
}
void HTMLFormControlElement::requiredStateChanged()
{
updateValidity();
}
void HTMLFormControlElement::didAttachRenderers()
{
// The call to updateFromElement() needs to go after the call through
// to the base class's attach() because that can sometimes do a close
// on the renderer.
if (renderer())
renderer()->updateFromElement();
}
void HTMLFormControlElement::setChangedSinceLastFormControlChangeEvent(bool changed)
{
m_wasChangedSinceLastFormControlChangeEvent = changed;
}
void HTMLFormControlElement::dispatchChangeEvent()
{
dispatchScopedEvent(Event::create(eventNames().changeEvent, Event::CanBubble::Yes, Event::IsCancelable::No));
}
void HTMLFormControlElement::dispatchCancelEvent()
{
dispatchScopedEvent(Event::create(eventNames().cancelEvent, Event::CanBubble::Yes, Event::IsCancelable::No));
}
void HTMLFormControlElement::dispatchFormControlChangeEvent()
{
dispatchChangeEvent();
setChangedSinceLastFormControlChangeEvent(false);
setInteractedWithSinceLastFormSubmitEvent(true);
}
void HTMLFormControlElement::dispatchFormControlInputEvent()
{
setChangedSinceLastFormControlChangeEvent(true);
dispatchInputEvent();
}
void HTMLFormControlElement::didRecalcStyle(Style::Change)
{
// updateFromElement() can cause the selection to change, and in turn
// trigger synchronous layout, so it must not be called during style recalc.
if (renderer()) {
RefPtr<HTMLFormControlElement> element = this;
Style::deprecatedQueuePostResolutionCallback([element] {
if (auto* renderer = element->renderer())
renderer->updateFromElement();
});
}
}
bool HTMLFormControlElement::isKeyboardFocusable(KeyboardEvent* event) const
{
return isFocusable()
&& document().frame()
&& document().frame()->eventHandler().tabsToAllFormControls(event);
}
bool HTMLFormControlElement::isMouseFocusable() const
{
#if (PLATFORM(GTK) || PLATFORM(WPE))
return HTMLElement::isMouseFocusable();
#else
if (needsMouseFocusableQuirk())
return HTMLElement::isMouseFocusable();
return false;
#endif
}
void HTMLFormControlElement::runFocusingStepsForAutofocus()
{
focus({ SelectionRestorationMode::PlaceCaretAtStart });
}
void HTMLFormControlElement::dispatchBlurEvent(RefPtr<Element>&& newFocusedElement)
{
HTMLElement::dispatchBlurEvent(WTFMove(newFocusedElement));
hideVisibleValidationMessage();
}
#if ENABLE(AUTOCORRECT)
bool HTMLFormControlElement::shouldAutocorrect() const
{
const AtomString& autocorrectValue = attributeWithoutSynchronization(autocorrectAttr);
if (!autocorrectValue.isEmpty())
return !equalLettersIgnoringASCIICase(autocorrectValue, "off"_s);
if (RefPtr<HTMLFormElement> form = this->form())
return form->shouldAutocorrect();
return true;
}
#endif
#if ENABLE(AUTOCAPITALIZE)
AutocapitalizeType HTMLFormControlElement::autocapitalizeType() const
{
AutocapitalizeType type = HTMLElement::autocapitalizeType();
if (type == AutocapitalizeType::Default) {
if (RefPtr<HTMLFormElement> form = this->form())
return form->autocapitalizeType();
}
return type;
}
#endif
String HTMLFormControlElement::autocomplete() const
{
return autofillData().idlExposedValue;
}
void HTMLFormControlElement::setAutocomplete(const AtomString& value)
{
setAttributeWithoutSynchronization(autocompleteAttr, value);
}
AutofillMantle HTMLFormControlElement::autofillMantle() const
{
return is<HTMLInputElement>(*this) && downcast<HTMLInputElement>(this)->isInputTypeHidden() ? AutofillMantle::Anchor : AutofillMantle::Expectation;
}
AutofillData HTMLFormControlElement::autofillData() const
{
// FIXME: We could cache the AutofillData if we we had an efficient way to invalidate the cache when
// the autofill mantle changed (due to a type change on an <input> element) or the element's form
// owner's autocomplete attribute changed or the form owner itself changed.
return AutofillData::createFromHTMLFormControlElement(*this);
}
String HTMLFormControlElement::resultForDialogSubmit() const
{
return attributeWithoutSynchronization(HTMLNames::valueAttr);
}
static const AtomString& toggleAtom()
{
static MainThreadNeverDestroyed<const AtomString> identifier("toggle"_s);
return identifier;
}
static const AtomString& showAtom()
{
static MainThreadNeverDestroyed<const AtomString> identifier("show"_s);
return identifier;
}
static const AtomString& hideAtom()
{
static MainThreadNeverDestroyed<const AtomString> identifier("hide"_s);
return identifier;
}
// https://html.spec.whatwg.org/#popover-target-element
HTMLElement* HTMLFormControlElement::popoverTargetElement() const
{
auto canInvokePopovers = [](const HTMLFormControlElement& element) -> bool {
if (auto* inputElement = dynamicDowncast<HTMLInputElement>(element))
return inputElement->isTextButton() || inputElement->isImageButton();
return is<HTMLButtonElement>(element);
};
if (!canInvokePopovers(*this))
return nullptr;
if (isDisabledFormControl())
return nullptr;
if (form() && isSubmitButton())
return nullptr;
auto* element = dynamicDowncast<HTMLElement>(getElementAttribute(popovertargetAttr));
if (element && element->popoverState() != PopoverState::None)
return element;
return nullptr;
}
const AtomString& HTMLFormControlElement::popoverTargetAction() const
{
auto value = attributeWithoutSynchronization(HTMLNames::popovertargetactionAttr);
if (equalIgnoringASCIICase(value, showAtom()))
return showAtom();
if (equalIgnoringASCIICase(value, hideAtom()))
return hideAtom();
return toggleAtom();
}
void HTMLFormControlElement::setPopoverTargetAction(const AtomString& value)
{
setAttributeWithoutSynchronization(HTMLNames::popovertargetactionAttr, value);
}
// https://html.spec.whatwg.org/#popover-target-attribute-activation-behavior
void HTMLFormControlElement::handlePopoverTargetAction() const
{
RefPtr target = popoverTargetElement();
if (!target)
return;
ASSERT(target->popoverData());
auto action = popoverTargetAction();
bool canHide = action == hideAtom() || action == toggleAtom();
bool canShow = action == showAtom() || action == toggleAtom();
if (canHide && target->popoverData()->visibilityState() == PopoverVisibilityState::Showing)
target->hidePopover();
else if (canShow && target->popoverData()->visibilityState() == PopoverVisibilityState::Hidden) {
target->popoverData()->setInvoker(this);
target->showPopover();
}
}
// FIXME: We should remove the quirk once <rdar://problem/47334655> is fixed.
bool HTMLFormControlElement::needsMouseFocusableQuirk() const
{
return document().quirks().needsFormControlToBeMouseFocusable();
}
} // namespace Webcore