| /* |
| * 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 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 "third_party/blink/renderer/core/html/forms/html_form_control_element.h" |
| |
| #include "third_party/blink/renderer/core/accessibility/ax_object_cache.h" |
| #include "third_party/blink/renderer/core/css/selector_checker.h" |
| #include "third_party/blink/renderer/core/dom/element_traversal.h" |
| #include "third_party/blink/renderer/core/dom/events/event.h" |
| #include "third_party/blink/renderer/core/dom/events/event_dispatch_forbidden_scope.h" |
| #include "third_party/blink/renderer/core/frame/web_feature.h" |
| #include "third_party/blink/renderer/core/html/forms/html_form_element.h" |
| #include "third_party/blink/renderer/core/html/forms/validity_state.h" |
| #include "third_party/blink/renderer/core/html/parser/html_parser_idioms.h" |
| #include "third_party/blink/renderer/core/layout/layout_object.h" |
| #include "third_party/blink/renderer/platform/bindings/exception_state.h" |
| #include "third_party/blink/renderer/platform/instrumentation/use_counter.h" |
| #include "third_party/blink/renderer/platform/loader/fetch/resource_fetcher.h" |
| #include "third_party/blink/renderer/platform/wtf/vector.h" |
| |
| namespace blink { |
| |
| HTMLFormControlElement::HTMLFormControlElement(const QualifiedName& tag_name, |
| Document& document) |
| : HTMLElement(tag_name, document), |
| autofill_state_(WebAutofillState::kNotFilled), |
| blocks_form_submission_(false) { |
| SetHasCustomStyleCallbacks(); |
| static unsigned next_free_unique_id = 0; |
| unique_renderer_form_control_id_ = next_free_unique_id++; |
| } |
| |
| HTMLFormControlElement::~HTMLFormControlElement() = default; |
| |
| void HTMLFormControlElement::Trace(Visitor* visitor) { |
| ListedElement::Trace(visitor); |
| HTMLElement::Trace(visitor); |
| } |
| |
| String HTMLFormControlElement::formAction() const { |
| const AtomicString& action = FastGetAttribute(html_names::kFormactionAttr); |
| if (action.IsEmpty()) { |
| return GetDocument().Url(); |
| } |
| return GetDocument().CompleteURL(StripLeadingAndTrailingHTMLSpaces(action)); |
| } |
| |
| void HTMLFormControlElement::setFormAction(const AtomicString& value) { |
| setAttribute(html_names::kFormactionAttr, value); |
| } |
| |
| String HTMLFormControlElement::formEnctype() const { |
| const AtomicString& form_enctype_attr = |
| FastGetAttribute(html_names::kFormenctypeAttr); |
| if (form_enctype_attr.IsNull()) |
| return g_empty_string; |
| return FormSubmission::Attributes::ParseEncodingType(form_enctype_attr); |
| } |
| |
| void HTMLFormControlElement::setFormEnctype(const AtomicString& value) { |
| setAttribute(html_names::kFormenctypeAttr, value); |
| } |
| |
| String HTMLFormControlElement::formMethod() const { |
| const AtomicString& form_method_attr = |
| FastGetAttribute(html_names::kFormmethodAttr); |
| if (form_method_attr.IsNull()) |
| return g_empty_string; |
| return FormSubmission::Attributes::MethodString( |
| FormSubmission::Attributes::ParseMethodType(form_method_attr)); |
| } |
| |
| void HTMLFormControlElement::setFormMethod(const AtomicString& value) { |
| setAttribute(html_names::kFormmethodAttr, value); |
| } |
| |
| bool HTMLFormControlElement::FormNoValidate() const { |
| return FastHasAttribute(html_names::kFormnovalidateAttr); |
| } |
| |
| void HTMLFormControlElement::Reset() { |
| SetAutofillState(WebAutofillState::kNotFilled); |
| ResetImpl(); |
| } |
| |
| void HTMLFormControlElement::AttributeChanged( |
| const AttributeModificationParams& params) { |
| HTMLElement::AttributeChanged(params); |
| if (params.name == html_names::kDisabledAttr && |
| params.old_value.IsNull() != params.new_value.IsNull()) { |
| DisabledAttributeChanged(); |
| if (params.reason == AttributeModificationReason::kDirectly && |
| IsDisabledFormControl() && AdjustedFocusedElementInTreeScope() == this) |
| blur(); |
| } |
| } |
| |
| void HTMLFormControlElement::ParseAttribute( |
| const AttributeModificationParams& params) { |
| const QualifiedName& name = params.name; |
| if (name == html_names::kFormAttr) { |
| FormAttributeChanged(); |
| UseCounter::Count(GetDocument(), WebFeature::kFormAttribute); |
| } else if (name == html_names::kReadonlyAttr) { |
| if (params.old_value.IsNull() != params.new_value.IsNull()) { |
| UpdateWillValidateCache(); |
| PseudoStateChanged(CSSSelector::kPseudoReadOnly); |
| PseudoStateChanged(CSSSelector::kPseudoReadWrite); |
| if (LayoutObject* o = GetLayoutObject()) |
| o->InvalidateIfControlStateChanged(kReadOnlyControlState); |
| } |
| } else if (name == html_names::kRequiredAttr) { |
| if (params.old_value.IsNull() != params.new_value.IsNull()) |
| RequiredAttributeChanged(); |
| UseCounter::Count(GetDocument(), WebFeature::kRequiredAttribute); |
| } else if (name == html_names::kAutofocusAttr) { |
| HTMLElement::ParseAttribute(params); |
| UseCounter::Count(GetDocument(), WebFeature::kAutoFocusAttribute); |
| } else { |
| HTMLElement::ParseAttribute(params); |
| } |
| } |
| |
| void HTMLFormControlElement::DisabledAttributeChanged() { |
| // Don't blur in this function because this is called for descendants of |
| // <fieldset> while tree traversal. |
| EventDispatchForbiddenScope event_forbidden; |
| |
| ListedElement::DisabledAttributeChanged(); |
| if (LayoutObject* o = GetLayoutObject()) |
| o->InvalidateIfControlStateChanged(kEnabledControlState); |
| |
| // TODO(dmazzoni): http://crbug.com/699438. |
| // Replace |CheckedStateChanged| with a generic tree changed event. |
| if (AXObjectCache* cache = GetDocument().ExistingAXObjectCache()) |
| cache->CheckedStateChanged(this); |
| } |
| |
| void HTMLFormControlElement::RequiredAttributeChanged() { |
| SetNeedsValidityCheck(); |
| PseudoStateChanged(CSSSelector::kPseudoRequired); |
| PseudoStateChanged(CSSSelector::kPseudoOptional); |
| // TODO(dmazzoni): http://crbug.com/699438. |
| // Replace |CheckedStateChanged| with a generic tree changed event. |
| if (AXObjectCache* cache = GetDocument().ExistingAXObjectCache()) |
| cache->CheckedStateChanged(this); |
| } |
| |
| bool HTMLFormControlElement::IsReadOnly() const { |
| return FastHasAttribute(html_names::kReadonlyAttr); |
| } |
| |
| bool HTMLFormControlElement::IsDisabledOrReadOnly() const { |
| return IsDisabledFormControl() || IsReadOnly(); |
| } |
| |
| void HTMLFormControlElement::SetAutofillState(WebAutofillState autofill_state) { |
| if (autofill_state == autofill_state_) |
| return; |
| |
| autofill_state_ = autofill_state; |
| PseudoStateChanged(CSSSelector::kPseudoAutofill); |
| PseudoStateChanged(CSSSelector::kPseudoAutofillSelected); |
| PseudoStateChanged(CSSSelector::kPseudoAutofillPreviewed); |
| } |
| |
| void HTMLFormControlElement::SetAutofillSection(const WebString& section) { |
| autofill_section_ = section; |
| } |
| |
| const AtomicString& HTMLFormControlElement::autocapitalize() const { |
| if (!FastGetAttribute(html_names::kAutocapitalizeAttr).IsEmpty()) |
| return HTMLElement::autocapitalize(); |
| |
| // If the form control itself does not have the autocapitalize attribute set, |
| // but the form owner is non-null and does have the autocapitalize attribute |
| // set, we inherit from the form owner. |
| if (HTMLFormElement* form = Form()) |
| return form->autocapitalize(); |
| |
| return g_empty_atom; |
| } |
| |
| void HTMLFormControlElement::AttachLayoutTree(AttachContext& context) { |
| HTMLElement::AttachLayoutTree(context); |
| |
| if (!GetLayoutObject()) |
| return; |
| |
| // The call to updateFromElement() needs to go after the call through |
| // to the base class's attachLayoutTree() because that can sometimes do a |
| // close on the layoutObject. |
| GetLayoutObject()->UpdateFromElement(); |
| } |
| |
| void HTMLFormControlElement::DidMoveToNewDocument(Document& old_document) { |
| ListedElement::DidMoveToNewDocument(old_document); |
| HTMLElement::DidMoveToNewDocument(old_document); |
| } |
| |
| Node::InsertionNotificationRequest HTMLFormControlElement::InsertedInto( |
| ContainerNode& insertion_point) { |
| HTMLElement::InsertedInto(insertion_point); |
| ListedElement::InsertedInto(insertion_point); |
| return kInsertionDone; |
| } |
| |
| void HTMLFormControlElement::RemovedFrom(ContainerNode& insertion_point) { |
| HTMLElement::RemovedFrom(insertion_point); |
| ListedElement::RemovedFrom(insertion_point); |
| } |
| |
| void HTMLFormControlElement::WillChangeForm() { |
| ListedElement::WillChangeForm(); |
| if (formOwner() && CanBeSuccessfulSubmitButton()) |
| formOwner()->InvalidateDefaultButtonStyle(); |
| } |
| |
| void HTMLFormControlElement::DidChangeForm() { |
| ListedElement::DidChangeForm(); |
| if (formOwner() && isConnected() && CanBeSuccessfulSubmitButton()) |
| formOwner()->InvalidateDefaultButtonStyle(); |
| } |
| |
| void HTMLFormControlElement::DispatchChangeEvent() { |
| DispatchScopedEvent(*Event::CreateBubble(event_type_names::kChange)); |
| } |
| |
| HTMLFormElement* HTMLFormControlElement::formOwner() const { |
| return ListedElement::Form(); |
| } |
| |
| bool HTMLFormControlElement::IsDisabledFormControl() const { |
| // Since the MHTML is loaded in sandboxing mode with form submission and |
| // script execution disabled, we should gray out all form control elements |
| // to indicate that the form cannot be worked on. |
| if (GetDocument().Fetcher()->Archive()) |
| return true; |
| |
| return IsActuallyDisabled(); |
| } |
| |
| bool HTMLFormControlElement::MatchesEnabledPseudoClass() const { |
| return !IsDisabledFormControl(); |
| } |
| |
| bool HTMLFormControlElement::IsRequired() const { |
| return FastHasAttribute(html_names::kRequiredAttr); |
| } |
| |
| String HTMLFormControlElement::ResultForDialogSubmit() { |
| return FastGetAttribute(html_names::kValueAttr); |
| } |
| |
| void HTMLFormControlElement::DidRecalcStyle(const StyleRecalcChange change) { |
| if (change.ReattachLayoutTree()) |
| return; |
| if (LayoutObject* layout_object = GetLayoutObject()) |
| layout_object->UpdateFromElement(); |
| } |
| |
| bool HTMLFormControlElement::SupportsFocus() const { |
| return !IsDisabledFormControl(); |
| } |
| |
| bool HTMLFormControlElement::IsKeyboardFocusable() const { |
| if (RuntimeEnabledFeatures::FocuslessSpatialNavigationEnabled()) |
| return HTMLElement::IsKeyboardFocusable(); |
| |
| // Skip tabIndex check in a parent class. |
| return IsFocusable(); |
| } |
| |
| bool HTMLFormControlElement::MayTriggerVirtualKeyboard() const { |
| return false; |
| } |
| |
| bool HTMLFormControlElement::ShouldHaveFocusAppearance() const { |
| return SelectorChecker::MatchesFocusVisiblePseudoClass(*this); |
| } |
| |
| bool HTMLFormControlElement::willValidate() const { |
| return ListedElement::WillValidate(); |
| } |
| |
| bool HTMLFormControlElement::MatchesValidityPseudoClasses() const { |
| return willValidate(); |
| } |
| |
| bool HTMLFormControlElement::IsValidElement() { |
| return ListedElement::IsValidElement(); |
| } |
| |
| bool HTMLFormControlElement::IsSuccessfulSubmitButton() const { |
| return CanBeSuccessfulSubmitButton() && !IsDisabledFormControl(); |
| } |
| |
| // static |
| const HTMLFormControlElement* |
| HTMLFormControlElement::EnclosingFormControlElement(const Node* node) { |
| if (!node) |
| return nullptr; |
| return Traversal<HTMLFormControlElement>::FirstAncestorOrSelf(*node); |
| } |
| |
| String HTMLFormControlElement::NameForAutofill() const { |
| String full_name = GetName(); |
| String trimmed_name = full_name.StripWhiteSpace(); |
| if (!trimmed_name.IsEmpty()) |
| return trimmed_name; |
| full_name = GetIdAttribute(); |
| trimmed_name = full_name.StripWhiteSpace(); |
| return trimmed_name; |
| } |
| |
| void HTMLFormControlElement::CloneNonAttributePropertiesFrom( |
| const Element& source, |
| CloneChildrenFlag flag) { |
| HTMLElement::CloneNonAttributePropertiesFrom(source, flag); |
| SetNeedsValidityCheck(); |
| } |
| |
| void HTMLFormControlElement::AssociateWith(HTMLFormElement* form) { |
| AssociateByParser(form); |
| } |
| |
| int32_t HTMLFormControlElement::GetAxId() const { |
| if (AXObjectCache* cache = GetDocument().ExistingAXObjectCache()) |
| return cache->GetAXID(const_cast<HTMLFormControlElement*>(this)); |
| |
| return 0; |
| } |
| |
| } // namespace blink |