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authorSteve Block <steveblock@google.com>2011-05-06 11:45:16 +0100
committerSteve Block <steveblock@google.com>2011-05-12 13:44:10 +0100
commitcad810f21b803229eb11403f9209855525a25d57 (patch)
tree29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /Source/WebCore/html/HTMLFormElement.cpp
parent121b0cf4517156d0ac5111caf9830c51b69bae8f (diff)
downloadexternal_webkit-cad810f21b803229eb11403f9209855525a25d57.zip
external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.gz
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Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'Source/WebCore/html/HTMLFormElement.cpp')
-rw-r--r--Source/WebCore/html/HTMLFormElement.cpp669
1 files changed, 669 insertions, 0 deletions
diff --git a/Source/WebCore/html/HTMLFormElement.cpp b/Source/WebCore/html/HTMLFormElement.cpp
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+++ b/Source/WebCore/html/HTMLFormElement.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, 2005, 2006, 2007, 2008, 2009 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 "HTMLFormElement.h"
+
+#include "Attribute.h"
+#include "DOMFormData.h"
+#include "DOMWindow.h"
+#include "Document.h"
+#include "Event.h"
+#include "EventNames.h"
+#include "FileList.h"
+#include "FileSystem.h"
+#include "FormData.h"
+#include "FormDataList.h"
+#include "FormState.h"
+#include "Frame.h"
+#include "FrameLoader.h"
+#include "FrameLoaderClient.h"
+#include "HTMLDocument.h"
+#include "HTMLFormCollection.h"
+#include "HTMLImageElement.h"
+#include "HTMLInputElement.h"
+#include "HTMLNames.h"
+#include "MIMETypeRegistry.h"
+#include "Page.h"
+#include "RenderTextControl.h"
+#include "ScriptEventListener.h"
+#include "Settings.h"
+#include "ValidityState.h"
+#include <limits>
+
+#if PLATFORM(WX)
+#include <wx/defs.h>
+#include <wx/filename.h>
+#endif
+
+using namespace std;
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+HTMLFormElement::HTMLFormElement(const QualifiedName& tagName, Document* document)
+ : HTMLElement(tagName, document)
+ , m_associatedElementsBeforeIndex(0)
+ , m_associatedElementsAfterIndex(0)
+ , m_wasUserSubmitted(false)
+ , m_isSubmittingOrPreparingForSubmission(false)
+ , m_shouldSubmit(false)
+ , m_isInResetFunction(false)
+ , m_wasMalformed(false)
+ , m_wasDemoted(false)
+{
+ ASSERT(hasTagName(formTag));
+}
+
+PassRefPtr<HTMLFormElement> HTMLFormElement::create(Document* document)
+{
+ return adoptRef(new HTMLFormElement(formTag, document));
+}
+
+PassRefPtr<HTMLFormElement> HTMLFormElement::create(const QualifiedName& tagName, Document* document)
+{
+ return adoptRef(new HTMLFormElement(tagName, document));
+}
+
+HTMLFormElement::~HTMLFormElement()
+{
+ if (!autoComplete())
+ document()->unregisterForDocumentActivationCallbacks(this);
+
+ for (unsigned i = 0; i < m_associatedElements.size(); ++i)
+ m_associatedElements[i]->formDestroyed();
+ for (unsigned i = 0; i < m_imageElements.size(); ++i)
+ m_imageElements[i]->m_form = 0;
+}
+
+bool HTMLFormElement::formWouldHaveSecureSubmission(const String& url)
+{
+ return document()->completeURL(url).protocolIs("https");
+}
+
+bool HTMLFormElement::rendererIsNeeded(RenderStyle* style)
+{
+ if (!m_wasDemoted)
+ return HTMLElement::rendererIsNeeded(style);
+
+ ContainerNode* node = parentNode();
+ RenderObject* parentRenderer = node->renderer();
+ bool parentIsTableElementPart = (parentRenderer->isTable() && node->hasTagName(tableTag))
+ || (parentRenderer->isTableRow() && node->hasTagName(trTag))
+ || (parentRenderer->isTableSection() && node->hasTagName(tbodyTag))
+ || (parentRenderer->isTableCol() && node->hasTagName(colTag))
+ || (parentRenderer->isTableCell() && node->hasTagName(trTag));
+
+ if (!parentIsTableElementPart)
+ return true;
+
+ EDisplay display = style->display();
+ bool formIsTablePart = display == TABLE || display == INLINE_TABLE || display == TABLE_ROW_GROUP
+ || display == TABLE_HEADER_GROUP || display == TABLE_FOOTER_GROUP || display == TABLE_ROW
+ || display == TABLE_COLUMN_GROUP || display == TABLE_COLUMN || display == TABLE_CELL
+ || display == TABLE_CAPTION;
+
+ return formIsTablePart;
+}
+
+void HTMLFormElement::insertedIntoDocument()
+{
+ if (document()->isHTMLDocument())
+ static_cast<HTMLDocument*>(document())->addNamedItem(m_name);
+
+ HTMLElement::insertedIntoDocument();
+
+ if (hasID())
+ document()->resetFormElementsOwner(this);
+}
+
+void HTMLFormElement::removedFromDocument()
+{
+ if (document()->isHTMLDocument())
+ static_cast<HTMLDocument*>(document())->removeNamedItem(m_name);
+
+ HTMLElement::removedFromDocument();
+
+ if (hasID())
+ document()->resetFormElementsOwner(0);
+}
+
+void HTMLFormElement::handleLocalEvents(Event* event)
+{
+ Node* targetNode = event->target()->toNode();
+ if (event->eventPhase() != Event::CAPTURING_PHASE && targetNode && targetNode != this && (event->type() == eventNames().submitEvent || event->type() == eventNames().resetEvent)) {
+ event->stopPropagation();
+ return;
+ }
+ HTMLElement::handleLocalEvents(event);
+}
+
+unsigned HTMLFormElement::length() const
+{
+ unsigned len = 0;
+ for (unsigned i = 0; i < m_associatedElements.size(); ++i)
+ if (m_associatedElements[i]->isEnumeratable())
+ ++len;
+ return len;
+}
+
+Node* HTMLFormElement::item(unsigned index)
+{
+ return elements()->item(index);
+}
+
+void HTMLFormElement::submitImplicitly(Event* event, bool fromImplicitSubmissionTrigger)
+{
+ int submissionTriggerCount = 0;
+ for (unsigned i = 0; i < m_associatedElements.size(); ++i) {
+ FormAssociatedElement* formAssociatedElement = m_associatedElements[i];
+ if (!formAssociatedElement->isFormControlElement())
+ continue;
+ HTMLFormControlElement* formElement = static_cast<HTMLFormControlElement*>(formAssociatedElement);
+ if (formElement->isSuccessfulSubmitButton()) {
+ if (formElement->renderer()) {
+ formElement->dispatchSimulatedClick(event);
+ return;
+ }
+ } else if (formElement->canTriggerImplicitSubmission())
+ ++submissionTriggerCount;
+ }
+ if (fromImplicitSubmissionTrigger && submissionTriggerCount == 1)
+ prepareForSubmission(event);
+}
+
+static inline HTMLFormControlElement* submitElementFromEvent(const Event* event)
+{
+ Node* targetNode = event->target()->toNode();
+ if (!targetNode || !targetNode->isElementNode())
+ return 0;
+ Element* targetElement = static_cast<Element*>(targetNode);
+ if (!targetElement->isFormControlElement())
+ return 0;
+ return static_cast<HTMLFormControlElement*>(targetElement);
+}
+
+bool HTMLFormElement::validateInteractively(Event* event)
+{
+ ASSERT(event);
+ if (!document()->page() || !document()->page()->settings()->interactiveFormValidationEnabled() || noValidate())
+ return true;
+
+ HTMLFormControlElement* submitElement = submitElementFromEvent(event);
+ if (submitElement && submitElement->formNoValidate())
+ return true;
+
+ for (unsigned i = 0; i < m_associatedElements.size(); ++i) {
+ if (m_associatedElements[i]->isFormControlElement())
+ static_cast<HTMLFormControlElement*>(m_associatedElements[i])->hideVisibleValidationMessage();
+ }
+
+ Vector<RefPtr<FormAssociatedElement> > unhandledInvalidControls;
+ collectUnhandledInvalidControls(unhandledInvalidControls);
+ if (unhandledInvalidControls.isEmpty())
+ return true;
+ // If the form has invalid controls, abort submission.
+
+ RefPtr<HTMLFormElement> protector(this);
+ // Focus on the first focusable control and show a validation message.
+ for (unsigned i = 0; i < unhandledInvalidControls.size(); ++i) {
+ FormAssociatedElement* unhandledAssociatedElement = unhandledInvalidControls[i].get();
+ HTMLElement* unhandled = toHTMLElement(unhandledAssociatedElement);
+ if (unhandled->isFocusable() && unhandled->inDocument()) {
+ RefPtr<Document> originalDocument(unhandled->document());
+ unhandled->scrollIntoViewIfNeeded(false);
+ // scrollIntoViewIfNeeded() dispatches events, so the state
+ // of 'unhandled' might be changed so it's no longer focusable or
+ // moved to another document.
+ if (unhandled->isFocusable() && unhandled->inDocument() && originalDocument == unhandled->document()) {
+ unhandled->focus();
+ if (unhandled->isFormControlElement())
+ static_cast<HTMLFormControlElement*>(unhandled)->updateVisibleValidationMessage();
+ break;
+ }
+ }
+ }
+ // Warn about all of unfocusable controls.
+ if (Frame* frame = document()->frame()) {
+ for (unsigned i = 0; i < unhandledInvalidControls.size(); ++i) {
+ FormAssociatedElement* unhandledAssociatedElement = unhandledInvalidControls[i].get();
+ HTMLElement* unhandled = toHTMLElement(unhandledAssociatedElement);
+ if (unhandled->isFocusable() && unhandled->inDocument())
+ continue;
+ String message("An invalid form control with name='%name' is not focusable.");
+ message.replace("%name", unhandledAssociatedElement->name());
+ frame->domWindow()->console()->addMessage(HTMLMessageSource, LogMessageType, ErrorMessageLevel, message, 0, document()->url().string());
+ }
+ }
+ return false;
+}
+
+bool HTMLFormElement::prepareForSubmission(Event* event)
+{
+ Frame* frame = document()->frame();
+ if (m_isSubmittingOrPreparingForSubmission || !frame)
+ return m_isSubmittingOrPreparingForSubmission;
+
+ m_isSubmittingOrPreparingForSubmission = true;
+ m_shouldSubmit = false;
+
+ // Interactive validation must be done before dispatching the submit event.
+ if (!validateInteractively(event)) {
+ m_isSubmittingOrPreparingForSubmission = false;
+ return false;
+ }
+
+ frame->loader()->client()->dispatchWillSendSubmitEvent(this);
+
+ if (dispatchEvent(Event::create(eventNames().submitEvent, true, true)))
+ m_shouldSubmit = true;
+
+ m_isSubmittingOrPreparingForSubmission = false;
+
+ if (m_shouldSubmit)
+ submit(event, true, true, NotSubmittedByJavaScript);
+
+ return m_shouldSubmit;
+}
+
+void HTMLFormElement::submit()
+{
+ submit(0, false, true, NotSubmittedByJavaScript);
+}
+
+void HTMLFormElement::submitFromJavaScript()
+{
+ Frame* frame = document()->frame();
+ if (!frame)
+ return;
+ submit(0, false, frame->script()->anyPageIsProcessingUserGesture(), SubmittedByJavaScript);
+}
+
+void HTMLFormElement::submit(Event* event, bool activateSubmitButton, bool processingUserGesture, FormSubmissionTrigger formSubmissionTrigger)
+{
+ FrameView* view = document()->view();
+ Frame* frame = document()->frame();
+ if (!view || !frame)
+ return;
+
+ if (m_isSubmittingOrPreparingForSubmission) {
+ m_shouldSubmit = true;
+ return;
+ }
+
+ m_isSubmittingOrPreparingForSubmission = true;
+ m_wasUserSubmitted = processingUserGesture;
+
+ HTMLFormControlElement* firstSuccessfulSubmitButton = 0;
+ bool needButtonActivation = activateSubmitButton; // do we need to activate a submit button?
+
+ for (unsigned i = 0; i < m_associatedElements.size(); ++i) {
+ FormAssociatedElement* associatedElement = m_associatedElements[i];
+ if (!associatedElement->isFormControlElement())
+ continue;
+ if (needButtonActivation) {
+ HTMLFormControlElement* control = static_cast<HTMLFormControlElement*>(associatedElement);
+ if (control->isActivatedSubmit())
+ needButtonActivation = false;
+ else if (firstSuccessfulSubmitButton == 0 && control->isSuccessfulSubmitButton())
+ firstSuccessfulSubmitButton = control;
+ }
+ }
+
+ if (needButtonActivation && firstSuccessfulSubmitButton)
+ firstSuccessfulSubmitButton->setActivatedSubmit(true);
+
+ frame->loader()->submitForm(FormSubmission::create(this, m_attributes, event, !processingUserGesture, formSubmissionTrigger));
+
+ if (needButtonActivation && firstSuccessfulSubmitButton)
+ firstSuccessfulSubmitButton->setActivatedSubmit(false);
+
+ m_shouldSubmit = false;
+ m_isSubmittingOrPreparingForSubmission = false;
+}
+
+void HTMLFormElement::reset()
+{
+ Frame* frame = document()->frame();
+ if (m_isInResetFunction || !frame)
+ return;
+
+ m_isInResetFunction = true;
+
+ if (!dispatchEvent(Event::create(eventNames().resetEvent, true, true))) {
+ m_isInResetFunction = false;
+ return;
+ }
+
+ for (unsigned i = 0; i < m_associatedElements.size(); ++i) {
+ if (m_associatedElements[i]->isFormControlElement())
+ static_cast<HTMLFormControlElement*>(m_associatedElements[i])->reset();
+ }
+
+ m_isInResetFunction = false;
+}
+
+void HTMLFormElement::parseMappedAttribute(Attribute* attr)
+{
+ if (attr->name() == actionAttr)
+ m_attributes.parseAction(attr->value());
+ else if (attr->name() == targetAttr)
+ m_attributes.setTarget(attr->value());
+ else if (attr->name() == methodAttr)
+ m_attributes.parseMethodType(attr->value());
+ else if (attr->name() == enctypeAttr)
+ m_attributes.parseEncodingType(attr->value());
+ else if (attr->name() == accept_charsetAttr)
+ m_attributes.setAcceptCharset(attr->value());
+ else if (attr->name() == autocompleteAttr) {
+ if (!autoComplete())
+ document()->registerForDocumentActivationCallbacks(this);
+ else
+ document()->unregisterForDocumentActivationCallbacks(this);
+ } else if (attr->name() == onsubmitAttr)
+ setAttributeEventListener(eventNames().submitEvent, createAttributeEventListener(this, attr));
+ else if (attr->name() == onresetAttr)
+ setAttributeEventListener(eventNames().resetEvent, createAttributeEventListener(this, attr));
+ else if (attr->name() == nameAttr) {
+ const AtomicString& newName = attr->value();
+ if (inDocument() && document()->isHTMLDocument()) {
+ HTMLDocument* document = static_cast<HTMLDocument*>(this->document());
+ document->removeNamedItem(m_name);
+ document->addNamedItem(newName);
+ }
+ m_name = newName;
+ } else
+ HTMLElement::parseMappedAttribute(attr);
+}
+
+template<class T, size_t n> static void removeFromVector(Vector<T*, n> & vec, T* item)
+{
+ size_t size = vec.size();
+ for (size_t i = 0; i != size; ++i)
+ if (vec[i] == item) {
+ vec.remove(i);
+ break;
+ }
+}
+
+unsigned HTMLFormElement::formElementIndexWithFormAttribute(Element* element)
+{
+ // Compares the position of the form element and the inserted element.
+ // Updates the indeces in order to the relation of the position:
+ unsigned short position = compareDocumentPosition(element);
+ if (position & DOCUMENT_POSITION_CONTAINS)
+ ++m_associatedElementsAfterIndex;
+ else if (position & DOCUMENT_POSITION_PRECEDING) {
+ ++m_associatedElementsBeforeIndex;
+ ++m_associatedElementsAfterIndex;
+ }
+
+ if (m_associatedElements.isEmpty())
+ return 0;
+
+ // Does binary search on m_associatedElements in order to find the index
+ // to be inserted.
+ unsigned left = 0, right = m_associatedElements.size() - 1;
+ while (left != right) {
+ unsigned middle = left + ((right - left) / 2);
+ position = element->compareDocumentPosition(toHTMLElement(m_associatedElements[middle]));
+ if (position & DOCUMENT_POSITION_FOLLOWING)
+ right = middle;
+ else
+ left = middle + 1;
+ }
+
+ position = element->compareDocumentPosition(toHTMLElement(m_associatedElements[left]));
+ if (position & DOCUMENT_POSITION_FOLLOWING)
+ return left;
+ return left + 1;
+}
+
+unsigned HTMLFormElement::formElementIndex(FormAssociatedElement* associatedElement)
+{
+ HTMLElement* element = toHTMLElement(associatedElement);
+ // Treats separately the case where this element has the form attribute
+ // for performance consideration.
+ if (element->fastHasAttribute(formAttr))
+ return formElementIndexWithFormAttribute(element);
+
+ // Check for the special case where this element is the very last thing in
+ // the form's tree of children; we don't want to walk the entire tree in that
+ // common case that occurs during parsing; instead we'll just return a value
+ // that says "add this form element to the end of the array".
+ if (element->traverseNextNode(this)) {
+ unsigned i = m_associatedElementsBeforeIndex;
+ for (Node* node = this; node; node = node->traverseNextNode(this)) {
+ if (node == element) {
+ ++m_associatedElementsAfterIndex;
+ return i;
+ }
+ if (node->isHTMLElement()
+ && (static_cast<Element*>(node)->isFormControlElement()
+ || node->hasTagName(objectTag))
+ && static_cast<HTMLElement*>(node)->form() == this)
+ ++i;
+ }
+ }
+ return m_associatedElementsAfterIndex++;
+}
+
+void HTMLFormElement::registerFormElement(FormAssociatedElement* e)
+{
+ if (e->isFormControlElement()) {
+ HTMLFormControlElement* element = static_cast<HTMLFormControlElement*>(e);
+ document()->checkedRadioButtons().removeButton(element);
+ m_checkedRadioButtons.addButton(element);
+ }
+ m_associatedElements.insert(formElementIndex(e), e);
+}
+
+void HTMLFormElement::removeFormElement(FormAssociatedElement* e)
+{
+ if (e->isFormControlElement())
+ m_checkedRadioButtons.removeButton(static_cast<HTMLFormControlElement*>(e));
+ HTMLElement* element = toHTMLElement(e);
+ if (element->fastHasAttribute(formAttr)) {
+ unsigned index;
+ for (index = 0; index < m_associatedElements.size(); ++index)
+ if (m_associatedElements[index] == e)
+ break;
+ ASSERT(index < m_associatedElements.size());
+ if (index < m_associatedElementsBeforeIndex)
+ --m_associatedElementsBeforeIndex;
+ if (index < m_associatedElementsAfterIndex)
+ --m_associatedElementsAfterIndex;
+ } else
+ --m_associatedElementsAfterIndex;
+ removeFromVector(m_associatedElements, e);
+}
+
+bool HTMLFormElement::isURLAttribute(Attribute* attr) const
+{
+ return attr->name() == actionAttr;
+}
+
+void HTMLFormElement::registerImgElement(HTMLImageElement* e)
+{
+ ASSERT(m_imageElements.find(e) == notFound);
+ m_imageElements.append(e);
+}
+
+void HTMLFormElement::removeImgElement(HTMLImageElement* e)
+{
+ ASSERT(m_imageElements.find(e) != notFound);
+ removeFromVector(m_imageElements, e);
+}
+
+PassRefPtr<HTMLCollection> HTMLFormElement::elements()
+{
+ return HTMLFormCollection::create(this);
+}
+
+String HTMLFormElement::name() const
+{
+ return getAttribute(nameAttr);
+}
+
+bool HTMLFormElement::noValidate() const
+{
+ return fastHasAttribute(novalidateAttr);
+}
+
+// FIXME: This function should be removed because it does not do the same thing as the
+// JavaScript binding for action, which treats action as a URL attribute. Last time I
+// (Darin Adler) removed this, someone added it back, so I am leaving it in for now.
+String HTMLFormElement::action() const
+{
+ return getAttribute(actionAttr);
+}
+
+void HTMLFormElement::setAction(const String &value)
+{
+ setAttribute(actionAttr, value);
+}
+
+void HTMLFormElement::setEnctype(const String &value)
+{
+ setAttribute(enctypeAttr, value);
+}
+
+String HTMLFormElement::method() const
+{
+ return getAttribute(methodAttr);
+}
+
+void HTMLFormElement::setMethod(const String &value)
+{
+ setAttribute(methodAttr, value);
+}
+
+String HTMLFormElement::target() const
+{
+ return getAttribute(targetAttr);
+}
+
+bool HTMLFormElement::wasUserSubmitted() const
+{
+ return m_wasUserSubmitted;
+}
+
+HTMLFormControlElement* HTMLFormElement::defaultButton() const
+{
+ for (unsigned i = 0; i < m_associatedElements.size(); ++i) {
+ if (!m_associatedElements[i]->isFormControlElement())
+ continue;
+ HTMLFormControlElement* control = static_cast<HTMLFormControlElement*>(m_associatedElements[i]);
+ if (control->isSuccessfulSubmitButton())
+ return control;
+ }
+
+ return 0;
+}
+
+bool HTMLFormElement::checkValidity()
+{
+ Vector<RefPtr<FormAssociatedElement> > controls;
+ collectUnhandledInvalidControls(controls);
+ return controls.isEmpty();
+}
+
+void HTMLFormElement::collectUnhandledInvalidControls(Vector<RefPtr<FormAssociatedElement> >& unhandledInvalidControls)
+{
+ RefPtr<HTMLFormElement> protector(this);
+ // Copy m_associatedElements because event handlers called from
+ // HTMLFormControlElement::checkValidity() might change m_associatedElements.
+ Vector<RefPtr<FormAssociatedElement> > elements;
+ elements.reserveCapacity(m_associatedElements.size());
+ for (unsigned i = 0; i < m_associatedElements.size(); ++i)
+ elements.append(m_associatedElements[i]);
+ for (unsigned i = 0; i < elements.size(); ++i) {
+ if (elements[i]->form() == this && elements[i]->isFormControlElement())
+ static_cast<HTMLFormControlElement*>(elements[i].get())->checkValidity(&unhandledInvalidControls);
+ }
+}
+
+HTMLFormControlElement* HTMLFormElement::elementForAlias(const AtomicString& alias)
+{
+ if (alias.isEmpty() || !m_elementAliases)
+ return 0;
+ return m_elementAliases->get(alias.impl()).get();
+}
+
+void HTMLFormElement::addElementAlias(HTMLFormControlElement* element, const AtomicString& alias)
+{
+ if (alias.isEmpty())
+ return;
+ if (!m_elementAliases)
+ m_elementAliases = adoptPtr(new AliasMap);
+ m_elementAliases->set(alias.impl(), element);
+}
+
+void HTMLFormElement::getNamedElements(const AtomicString& name, Vector<RefPtr<Node> >& namedItems)
+{
+ elements()->namedItems(name, namedItems);
+
+ HTMLFormControlElement* aliasElement = elementForAlias(name);
+ if (aliasElement) {
+ if (namedItems.find(aliasElement) == notFound) {
+ // We have seen it before but it is gone now. Still, we need to return it.
+ // FIXME: The above comment is not clear enough; it does not say why we need to do this.
+ namedItems.append(aliasElement);
+ }
+ }
+ if (namedItems.size() && namedItems.first() != aliasElement)
+ addElementAlias(static_cast<HTMLFormControlElement*>(namedItems.first().get()), name);
+}
+
+void HTMLFormElement::documentDidBecomeActive()
+{
+ ASSERT(!autoComplete());
+
+ for (unsigned i = 0; i < m_associatedElements.size(); ++i) {
+ if (m_associatedElements[i]->isFormControlElement())
+ static_cast<HTMLFormControlElement*>(m_associatedElements[i])->reset();
+ }
+}
+
+void HTMLFormElement::willMoveToNewOwnerDocument()
+{
+ if (!autoComplete())
+ document()->unregisterForDocumentActivationCallbacks(this);
+ HTMLElement::willMoveToNewOwnerDocument();
+}
+
+void HTMLFormElement::didMoveToNewOwnerDocument()
+{
+ if (!autoComplete())
+ document()->registerForDocumentActivationCallbacks(this);
+ HTMLElement::didMoveToNewOwnerDocument();
+}
+
+bool HTMLFormElement::autoComplete() const
+{
+ return !equalIgnoringCase(fastGetAttribute(autocompleteAttr), "off");
+}
+
+} // namespace