| /* |
| * 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, 2010 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_field_set_element.h" |
| |
| #include "third_party/blink/renderer/core/dom/element_traversal.h" |
| #include "third_party/blink/renderer/core/dom/events/event_dispatch_forbidden_scope.h" |
| #include "third_party/blink/renderer/core/dom/node_lists_node_data.h" |
| #include "third_party/blink/renderer/core/html/custom/element_internals.h" |
| #include "third_party/blink/renderer/core/html/forms/html_legend_element.h" |
| #include "third_party/blink/renderer/core/html/html_collection.h" |
| #include "third_party/blink/renderer/core/html_names.h" |
| #include "third_party/blink/renderer/core/layout/layout_block.h" |
| #include "third_party/blink/renderer/core/layout/layout_object_factory.h" |
| #include "third_party/blink/renderer/platform/runtime_enabled_features.h" |
| #include "third_party/blink/renderer/platform/wtf/std_lib_extras.h" |
| |
| namespace blink { |
| |
| using namespace html_names; |
| |
| inline HTMLFieldSetElement::HTMLFieldSetElement(Document& document) |
| : HTMLFormControlElement(kFieldsetTag, document) {} |
| |
| HTMLFieldSetElement* HTMLFieldSetElement::Create(Document& document) { |
| return MakeGarbageCollected<HTMLFieldSetElement>(document); |
| } |
| |
| bool HTMLFieldSetElement::MatchesValidityPseudoClasses() const { |
| return true; |
| } |
| |
| bool HTMLFieldSetElement::IsValidElement() { |
| for (Element* element : *elements()) { |
| if (element->IsFormControlElement()) { |
| if (!ToHTMLFormControlElement(element)->checkValidity( |
| nullptr, kCheckValidityDispatchNoEvent)) |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| bool HTMLFieldSetElement::IsSubmittableElement() { |
| return false; |
| } |
| |
| // Returns a disabled focused element if it's in descendants of |base|. |
| Element* |
| HTMLFieldSetElement::InvalidateDescendantDisabledStateAndFindFocusedOne( |
| Element& base) { |
| Element* focused_element = AdjustedFocusedElementInTreeScope(); |
| bool should_blur = false; |
| { |
| EventDispatchForbiddenScope event_forbidden; |
| for (HTMLElement& element : Traversal<HTMLElement>::DescendantsOf(base)) { |
| if (auto* control = ToHTMLFormControlElementOrNull(element)) |
| control->AncestorDisabledStateWasChanged(); |
| else if (element.IsFormAssociatedCustomElement()) |
| element.EnsureElementInternals().AncestorDisabledStateWasChanged(); |
| else |
| continue; |
| if (focused_element == &element && element.IsDisabledFormControl()) |
| should_blur = true; |
| } |
| } |
| return should_blur ? focused_element : nullptr; |
| } |
| |
| void HTMLFieldSetElement::DisabledAttributeChanged() { |
| // This element must be updated before the style of nodes in its subtree gets |
| // recalculated. |
| HTMLFormControlElement::DisabledAttributeChanged(); |
| if (Element* focused_element = |
| InvalidateDescendantDisabledStateAndFindFocusedOne(*this)) |
| focused_element->blur(); |
| } |
| |
| void HTMLFieldSetElement::ChildrenChanged(const ChildrenChange& change) { |
| HTMLFormControlElement::ChildrenChanged(change); |
| Element* focused_element = nullptr; |
| { |
| EventDispatchForbiddenScope event_forbidden; |
| for (HTMLLegendElement& legend : |
| Traversal<HTMLLegendElement>::ChildrenOf(*this)) { |
| if (Element* element = |
| InvalidateDescendantDisabledStateAndFindFocusedOne(legend)) |
| focused_element = element; |
| } |
| } |
| if (focused_element) |
| focused_element->blur(); |
| } |
| |
| bool HTMLFieldSetElement::SupportsFocus() const { |
| return HTMLElement::SupportsFocus() && !IsDisabledFormControl(); |
| } |
| |
| const AtomicString& HTMLFieldSetElement::FormControlType() const { |
| DEFINE_STATIC_LOCAL(const AtomicString, fieldset, ("fieldset")); |
| return fieldset; |
| } |
| |
| LayoutObject* HTMLFieldSetElement::CreateLayoutObject( |
| const ComputedStyle& style) { |
| return LayoutObjectFactory::CreateFieldset(*this, style); |
| } |
| |
| bool HTMLFieldSetElement::ShouldForceLegacyLayout() const { |
| return !RuntimeEnabledFeatures::LayoutNGFieldsetEnabled(); |
| } |
| |
| HTMLLegendElement* HTMLFieldSetElement::Legend() const { |
| return Traversal<HTMLLegendElement>::FirstChild(*this); |
| } |
| |
| HTMLCollection* HTMLFieldSetElement::elements() { |
| return EnsureCachedCollection<HTMLCollection>(kFormControls); |
| } |
| |
| int HTMLFieldSetElement::tabIndex() const { |
| return HTMLElement::tabIndex(); |
| } |
| |
| } // namespace blink |