HTMLFormControlElement.cpp [plain text]
#include "config.h"
#include "HTMLFormControlElement.h"
#include "Attribute.h"
#include "ControlStates.h"
#include "Event.h"
#include "EventHandler.h"
#include "EventNames.h"
#include "Frame.h"
#include "HTMLFieldSetElement.h"
#include "HTMLFormElement.h"
#include "HTMLInputElement.h"
#include "HTMLLegendElement.h"
#include "HTMLTextAreaElement.h"
#include "RenderBox.h"
#include "RenderTheme.h"
#include "ValidationMessage.h"
#include <wtf/Ref.h>
#include <wtf/Vector.h>
namespace WebCore {
using namespace HTMLNames;
HTMLFormControlElement::HTMLFormControlElement(const QualifiedName& tagName, Document& document, HTMLFormElement* form)
: LabelableElement(tagName, document)
, m_disabled(false)
, m_isReadOnly(false)
, m_isRequired(false)
, m_valueMatchesRenderer(false)
, m_disabledByAncestorFieldset(false)
, m_dataListAncestorState(Unknown)
, m_willValidateInitialized(false)
, m_willValidate(true)
, m_isValid(true)
, m_wasChangedSinceLastFormControlChangeEvent(false)
, m_hasAutofocused(false)
{
setForm(form ? form : HTMLFormElement::findClosestFormAncestor(*this));
setHasCustomStyleResolveCallbacks();
}
HTMLFormControlElement::~HTMLFormControlElement()
{
}
String HTMLFormControlElement::formEnctype() const
{
const AtomicString& formEnctypeAttr = fastGetAttribute(formenctypeAttr);
if (formEnctypeAttr.isNull())
return emptyString();
return FormSubmission::Attributes::parseEncodingType(formEnctypeAttr);
}
void HTMLFormControlElement::setFormEnctype(const String& value)
{
setAttribute(formenctypeAttr, value);
}
String HTMLFormControlElement::formMethod() const
{
const AtomicString& formMethodAttr = fastGetAttribute(formmethodAttr);
if (formMethodAttr.isNull())
return emptyString();
return FormSubmission::Attributes::methodString(FormSubmission::Attributes::parseMethodType(formMethodAttr));
}
void HTMLFormControlElement::setFormMethod(const String& value)
{
setAttribute(formmethodAttr, value);
}
bool HTMLFormControlElement::formNoValidate() const
{
return fastHasAttribute(formnovalidateAttr);
}
bool HTMLFormControlElement::computeIsDisabledByFieldsetAncestor() const
{
Element* previousAncestor = nullptr;
for (Element* ancestor = parentElement(); ancestor; ancestor = ancestor->parentElement()) {
if (isHTMLFieldSetElement(ancestor) && ancestor->hasAttribute(disabledAttr)) {
HTMLFieldSetElement& fieldSetAncestor = toHTMLFieldSetElement(*ancestor);
bool isInFirstLegend = previousAncestor && isHTMLLegendElement(previousAncestor) && previousAncestor == fieldSetAncestor.legend();
return !isInFirstLegend;
}
previousAncestor = ancestor;
}
return false;
}
void HTMLFormControlElement::setAncestorDisabled(bool isDisabled)
{
ASSERT(computeIsDisabledByFieldsetAncestor() == isDisabled);
bool oldValue = m_disabledByAncestorFieldset;
m_disabledByAncestorFieldset = isDisabled;
if (oldValue != m_disabledByAncestorFieldset)
disabledStateChanged();
}
void HTMLFormControlElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (name == formAttr)
formAttributeChanged();
else if (name == disabledAttr) {
bool oldDisabled = m_disabled;
m_disabled = !value.isNull();
if (oldDisabled != m_disabled)
disabledAttributeChanged();
} else if (name == readonlyAttr) {
bool wasReadOnly = m_isReadOnly;
m_isReadOnly = !value.isNull();
if (wasReadOnly != m_isReadOnly)
readOnlyAttributeChanged();
} else if (name == requiredAttr) {
bool wasRequired = m_isRequired;
m_isRequired = !value.isNull();
if (wasRequired != m_isRequired)
requiredAttributeChanged();
} else
HTMLElement::parseAttribute(name, value);
}
void HTMLFormControlElement::disabledAttributeChanged()
{
disabledStateChanged();
}
void HTMLFormControlElement::disabledStateChanged()
{
setNeedsWillValidateCheck();
didAffectSelector(AffectedSelectorDisabled | AffectedSelectorEnabled);
if (renderer() && renderer()->style().hasAppearance())
renderer()->theme().stateChanged(*renderer(), ControlStates::EnabledState);
}
void HTMLFormControlElement::readOnlyAttributeChanged()
{
setNeedsWillValidateCheck();
setNeedsStyleRecalc();
if (renderer() && renderer()->style().hasAppearance())
renderer()->theme().stateChanged(*renderer(), ControlStates::ReadOnlyState);
}
void HTMLFormControlElement::requiredAttributeChanged()
{
setNeedsValidityCheck();
setNeedsStyleRecalc();
}
static bool shouldAutofocus(HTMLFormControlElement* element)
{
if (!element->renderer())
return false;
if (!element->fastHasAttribute(autofocusAttr))
return false;
if (!element->inDocument() || !element->document().renderView())
return false;
if (element->document().ignoreAutofocus())
return false;
if (element->document().isSandboxed(SandboxAutomaticFeatures)) {
element->document().addConsoleMessage(MessageSource::Security, MessageLevel::Error, ASCIILiteral("Blocked autofocusing on a form control because the form's frame is sandboxed and the 'allow-scripts' permission is not set."));
return false;
}
if (element->hasAutofocused())
return false;
if (isHTMLInputElement(element))
return !toHTMLInputElement(element)->isInputTypeHidden();
if (element->hasTagName(selectTag))
return true;
if (element->hasTagName(keygenTag))
return true;
if (element->hasTagName(buttonTag))
return true;
if (isHTMLTextAreaElement(element))
return true;
return false;
}
void HTMLFormControlElement::didAttachRenderers()
{
if (renderer())
renderer()->updateFromElement();
if (shouldAutofocus(this)) {
setAutofocused();
RefPtr<HTMLFormControlElement> element = this;
Style::queuePostResolutionCallback([element] {
element->focus();
});
}
}
void HTMLFormControlElement::didMoveToNewDocument(Document* oldDocument)
{
FormAssociatedElement::didMoveToNewDocument(oldDocument);
HTMLElement::didMoveToNewDocument(oldDocument);
}
Node::InsertionNotificationRequest HTMLFormControlElement::insertedInto(ContainerNode& insertionPoint)
{
if (document().hasDisabledFieldsetElement())
setAncestorDisabled(computeIsDisabledByFieldsetAncestor());
m_dataListAncestorState = Unknown;
setNeedsWillValidateCheck();
HTMLElement::insertedInto(insertionPoint);
FormAssociatedElement::insertedInto(insertionPoint);
return InsertionDone;
}
void HTMLFormControlElement::removedFrom(ContainerNode& insertionPoint)
{
m_validationMessage = nullptr;
if (m_disabledByAncestorFieldset)
setAncestorDisabled(computeIsDisabledByFieldsetAncestor());
m_dataListAncestorState = Unknown;
HTMLElement::removedFrom(insertionPoint);
FormAssociatedElement::removedFrom(insertionPoint);
}
void HTMLFormControlElement::setChangedSinceLastFormControlChangeEvent(bool changed)
{
m_wasChangedSinceLastFormControlChangeEvent = changed;
}
void HTMLFormControlElement::dispatchChangeEvent()
{
dispatchScopedEvent(Event::create(eventNames().changeEvent, true, false));
}
void HTMLFormControlElement::dispatchFormControlChangeEvent()
{
dispatchChangeEvent();
setChangedSinceLastFormControlChangeEvent(false);
}
void HTMLFormControlElement::dispatchFormControlInputEvent()
{
setChangedSinceLastFormControlChangeEvent(true);
HTMLElement::dispatchInputEvent();
}
bool HTMLFormControlElement::isDisabledFormControl() const
{
return m_disabled || m_disabledByAncestorFieldset;
}
bool HTMLFormControlElement::isRequired() const
{
return m_isRequired;
}
void HTMLFormControlElement::didRecalcStyle(Style::Change)
{
if (renderer()) {
RefPtr<HTMLFormControlElement> element = this;
Style::queuePostResolutionCallback([element]{
if (auto* renderer = element->renderer())
renderer->updateFromElement();
});
}
}
bool HTMLFormControlElement::supportsFocus() const
{
return !isDisabledFormControl();
}
bool HTMLFormControlElement::isFocusable() const
{
if (renderer() && (!renderer()->isBox() || toRenderBox(renderer())->size().isEmpty()))
return false;
return HTMLElement::isFocusable();
}
bool HTMLFormControlElement::isKeyboardFocusable(KeyboardEvent* event) const
{
if (isFocusable())
if (document().frame())
return document().frame()->eventHandler().tabsToAllFormControls(event);
return false;
}
bool HTMLFormControlElement::isMouseFocusable() const
{
#if PLATFORM(GTK)
return HTMLElement::isMouseFocusable();
#else
return false;
#endif
}
short HTMLFormControlElement::tabIndex() const
{
return Element::tabIndex();
}
bool HTMLFormControlElement::recalcWillValidate() const
{
if (m_dataListAncestorState == Unknown) {
for (ContainerNode* ancestor = parentNode(); ancestor; ancestor = ancestor->parentNode()) {
if (ancestor->hasTagName(datalistTag)) {
m_dataListAncestorState = InsideDataList;
break;
}
}
if (m_dataListAncestorState == Unknown)
m_dataListAncestorState = NotInsideDataList;
}
return m_dataListAncestorState == NotInsideDataList && !isDisabledOrReadOnly();
}
bool HTMLFormControlElement::willValidate() const
{
if (!m_willValidateInitialized || m_dataListAncestorState == Unknown) {
m_willValidateInitialized = true;
bool newWillValidate = recalcWillValidate();
if (m_willValidate != newWillValidate) {
m_willValidate = newWillValidate;
const_cast<HTMLFormControlElement*>(this)->setNeedsValidityCheck();
}
} else {
ASSERT(m_willValidate == recalcWillValidate());
}
return m_willValidate;
}
void HTMLFormControlElement::setNeedsWillValidateCheck()
{
bool newWillValidate = recalcWillValidate();
if (m_willValidateInitialized && m_willValidate == newWillValidate)
return;
m_willValidateInitialized = true;
m_willValidate = newWillValidate;
setNeedsValidityCheck();
setNeedsStyleRecalc();
if (!m_willValidate)
hideVisibleValidationMessage();
}
void HTMLFormControlElement::updateVisibleValidationMessage()
{
Page* page = document().page();
if (!page)
return;
String message;
if (renderer() && willValidate())
message = validationMessage().stripWhiteSpace();
if (!m_validationMessage)
m_validationMessage = std::make_unique<ValidationMessage>(this);
m_validationMessage->updateValidationMessage(message);
}
void HTMLFormControlElement::hideVisibleValidationMessage()
{
if (m_validationMessage)
m_validationMessage->requestToHideMessage();
}
bool HTMLFormControlElement::checkValidity(Vector<RefPtr<FormAssociatedElement>>* unhandledInvalidControls)
{
if (!willValidate() || isValidFormControlElement())
return true;
Ref<HTMLFormControlElement> protect(*this);
Ref<Document> originalDocument(document());
bool needsDefaultAction = dispatchEvent(Event::create(eventNames().invalidEvent, false, true));
if (needsDefaultAction && unhandledInvalidControls && inDocument() && &originalDocument.get() == &document())
unhandledInvalidControls->append(this);
return false;
}
bool HTMLFormControlElement::isValidFormControlElement() const
{
ASSERT(m_isValid == valid());
return m_isValid;
}
void HTMLFormControlElement::setNeedsValidityCheck()
{
bool newIsValid = valid();
if (willValidate() && newIsValid != m_isValid) {
setNeedsStyleRecalc();
}
m_isValid = newIsValid;
if (m_validationMessage && m_validationMessage->isVisible()) {
updateVisibleValidationMessage();
}
}
void HTMLFormControlElement::setCustomValidity(const String& error)
{
FormAssociatedElement::setCustomValidity(error);
setNeedsValidityCheck();
}
bool HTMLFormControlElement::validationMessageShadowTreeContains(const Node& node) const
{
return m_validationMessage && m_validationMessage->shadowTreeContains(node);
}
void HTMLFormControlElement::dispatchBlurEvent(PassRefPtr<Element> newFocusedElement)
{
HTMLElement::dispatchBlurEvent(newFocusedElement);
hideVisibleValidationMessage();
}
HTMLFormElement* HTMLFormControlElement::virtualForm() const
{
return FormAssociatedElement::form();
}
bool HTMLFormControlElement::isDefaultButtonForForm() const
{
return isSuccessfulSubmitButton() && form() && form()->defaultButton() == this;
}
#if ENABLE(IOS_AUTOCORRECT_AND_AUTOCAPITALIZE)
bool HTMLFormControlElement::autocorrect() const
{
const AtomicString& autocorrectValue = fastGetAttribute(autocorrectAttr);
if (!autocorrectValue.isEmpty())
return !equalIgnoringCase(autocorrectValue, "off");
if (HTMLFormElement* form = this->form())
return form->autocorrect();
return true;
}
void HTMLFormControlElement::setAutocorrect(bool autocorrect)
{
setAttribute(autocorrectAttr, autocorrect ? AtomicString("on", AtomicString::ConstructFromLiteral) : AtomicString("off", AtomicString::ConstructFromLiteral));
}
WebAutocapitalizeType HTMLFormControlElement::autocapitalizeType() const
{
WebAutocapitalizeType type = autocapitalizeTypeForAttributeValue(fastGetAttribute(autocapitalizeAttr));
if (type == WebAutocapitalizeTypeDefault) {
if (HTMLFormElement* form = this->form())
return form->autocapitalizeType();
}
return type;
}
const AtomicString& HTMLFormControlElement::autocapitalize() const
{
return stringForAutocapitalizeType(autocapitalizeType());
}
void HTMLFormControlElement::setAutocapitalize(const AtomicString& value)
{
setAttribute(autocapitalizeAttr, value);
}
#endif
HTMLFormControlElement* HTMLFormControlElement::enclosingFormControlElement(Node* node)
{
for (; node; node = node->parentNode()) {
if (node->isElementNode() && toElement(node)->isFormControlElement())
return toHTMLFormControlElement(node);
}
return 0;
}
}