95 lines
3.3 KiB
C++
95 lines
3.3 KiB
C++
/*
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* (C) 1999 Antti Koivisto (koivisto@kde.org)
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* (C) 2001 Dirk Mueller (mueller@kde.org)
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* Copyright (C) 2004-2017 Apple Inc. All rights reserved.
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* (C) 2006 Alexey Proskuryakov (ap@nypop.com)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#include "config.h"
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#include "HTMLLegendElement.h"
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#include "ElementIterator.h"
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#include "HTMLFieldSetElement.h"
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#include "HTMLNames.h"
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#include "SelectionRestorationMode.h"
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#include <wtf/IsoMallocInlines.h>
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLLegendElement);
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inline HTMLLegendElement::HTMLLegendElement(const QualifiedName& tagName, Document& document)
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: HTMLElement(tagName, document)
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{
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ASSERT(hasTagName(HTMLNames::legendTag));
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}
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Ref<HTMLLegendElement> HTMLLegendElement::create(const QualifiedName& tagName, Document& document)
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{
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return adoptRef(*new HTMLLegendElement(tagName, document));
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}
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RefPtr<HTMLFormControlElement> HTMLLegendElement::associatedControl()
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{
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// Check if there's a fieldset belonging to this legend.
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auto enclosingFieldset = ancestorsOfType<HTMLFieldSetElement>(*this).first();
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if (!enclosingFieldset)
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return nullptr;
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// Find first form element inside the fieldset that is not a legend element.
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// FIXME: Should we consider tabindex?
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return descendantsOfType<HTMLFormControlElement>(*enclosingFieldset).first();
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}
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void HTMLLegendElement::focus(const FocusOptions& options)
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{
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if (document().haveStylesheetsLoaded()) {
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document().updateLayoutIgnorePendingStylesheets();
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if (isFocusable()) {
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Element::focus({ options.selectionRestorationMode, options.direction });
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return;
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}
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}
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// To match other browsers' behavior, never restore previous selection.
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if (auto control = associatedControl())
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control->focus({ SelectionRestorationMode::SelectAll, options.direction });
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}
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bool HTMLLegendElement::accessKeyAction(bool sendMouseEvents)
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{
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if (auto control = associatedControl())
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return control->accessKeyAction(sendMouseEvents);
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return false;
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}
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HTMLFormElement* HTMLLegendElement::form() const
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{
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// According to the specification, If the legend has a fieldset element as
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// its parent, then the form attribute must return the same value as the
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// form attribute on that fieldset element. Otherwise, it must return null.
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auto fieldset = makeRefPtr(parentNode());
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if (!is<HTMLFieldSetElement>(fieldset))
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return nullptr;
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return downcast<HTMLFieldSetElement>(*fieldset).form();
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}
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} // namespace
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