166 lines
5.7 KiB
C++
166 lines
5.7 KiB
C++
/*
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* Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies)
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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 "HTMLSummaryElement.h"
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#include "DetailsMarkerControl.h"
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#include "EventNames.h"
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#include "HTMLDetailsElement.h"
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#include "HTMLFormControlElement.h"
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#include "HTMLSlotElement.h"
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#include "KeyboardEvent.h"
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#include "MouseEvent.h"
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#include "PlatformMouseEvent.h"
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#include "RenderBlockFlow.h"
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#include "ShadowRoot.h"
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#include "SlotAssignment.h"
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#include <wtf/IsoMallocInlines.h>
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLSummaryElement);
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using namespace HTMLNames;
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class SummarySlotElement final : public SlotAssignment {
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private:
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void hostChildElementDidChange(const Element&, ShadowRoot& shadowRoot) override
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{
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didChangeSlot(SlotAssignment::defaultSlotName(), shadowRoot);
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}
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const AtomString& slotNameForHostChild(const Node&) const override { return SlotAssignment::defaultSlotName(); }
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};
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Ref<HTMLSummaryElement> HTMLSummaryElement::create(const QualifiedName& tagName, Document& document)
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{
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Ref<HTMLSummaryElement> summary = adoptRef(*new HTMLSummaryElement(tagName, document));
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summary->addShadowRoot(ShadowRoot::create(document, makeUnique<SummarySlotElement>()));
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return summary;
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}
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HTMLSummaryElement::HTMLSummaryElement(const QualifiedName& tagName, Document& document)
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: HTMLElement(tagName, document)
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{
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ASSERT(hasTagName(summaryTag));
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}
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RenderPtr<RenderElement> HTMLSummaryElement::createElementRenderer(RenderStyle&& style, const RenderTreePosition&)
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{
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// <summary> elements with display:list-item should not be rendered as list items because they'd end up with two markers before the text (one from summary element and the other as a list item).
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return RenderElement::createFor(*this, WTFMove(style), { RenderElement::ConstructBlockLevelRendererFor::ListItem, RenderElement::ConstructBlockLevelRendererFor::Inline, RenderElement::ConstructBlockLevelRendererFor::TableOrTablePart });
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}
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void HTMLSummaryElement::didAddUserAgentShadowRoot(ShadowRoot& root)
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{
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root.appendChild(DetailsMarkerControl::create(document()));
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root.appendChild(HTMLSlotElement::create(slotTag, document()));
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}
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RefPtr<HTMLDetailsElement> HTMLSummaryElement::detailsElement() const
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{
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auto* parent = parentElement();
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if (parent && is<HTMLDetailsElement>(*parent))
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return downcast<HTMLDetailsElement>(parent);
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// Fallback summary element is in the shadow tree.
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auto* host = shadowHost();
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if (host && is<HTMLDetailsElement>(*host))
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return downcast<HTMLDetailsElement>(host);
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return nullptr;
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}
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bool HTMLSummaryElement::isActiveSummary() const
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{
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RefPtr<HTMLDetailsElement> details = detailsElement();
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if (!details)
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return false;
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return details->isActiveSummary(*this);
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}
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static bool isClickableControl(EventTarget* target)
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{
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if (!is<Element>(target))
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return false;
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auto& element = downcast<Element>(*target);
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return is<HTMLFormControlElement>(element) || is<HTMLFormControlElement>(element.shadowHost());
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}
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int HTMLSummaryElement::defaultTabIndex() const
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{
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return isActiveSummary() ? 0 : -1;
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}
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bool HTMLSummaryElement::supportsFocus() const
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{
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return isActiveSummary();
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}
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void HTMLSummaryElement::defaultEventHandler(Event& event)
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{
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if (isActiveSummary() && renderer()) {
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if (event.type() == eventNames().DOMActivateEvent && !isClickableControl(event.target())) {
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if (RefPtr<HTMLDetailsElement> details = detailsElement())
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details->toggleOpen();
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event.setDefaultHandled();
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return;
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}
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if (is<KeyboardEvent>(event)) {
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KeyboardEvent& keyboardEvent = downcast<KeyboardEvent>(event);
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if (keyboardEvent.type() == eventNames().keydownEvent && keyboardEvent.keyIdentifier() == "U+0020") {
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setActive(true, true);
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// No setDefaultHandled() - IE dispatches a keypress in this case.
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return;
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}
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if (keyboardEvent.type() == eventNames().keypressEvent) {
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switch (keyboardEvent.charCode()) {
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case '\r':
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dispatchSimulatedClick(&event);
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keyboardEvent.setDefaultHandled();
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return;
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case ' ':
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// Prevent scrolling down the page.
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keyboardEvent.setDefaultHandled();
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return;
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}
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}
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if (keyboardEvent.type() == eventNames().keyupEvent && keyboardEvent.keyIdentifier() == "U+0020") {
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if (active())
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dispatchSimulatedClick(&event);
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keyboardEvent.setDefaultHandled();
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return;
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}
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}
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}
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HTMLElement::defaultEventHandler(event);
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}
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bool HTMLSummaryElement::willRespondToMouseClickEvents()
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{
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if (isActiveSummary() && renderer())
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return true;
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return HTMLElement::willRespondToMouseClickEvents();
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}
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}
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