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/*
* Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies)
*
* 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 "HTMLSummaryElement.h"
#include "DetailsMarkerControl.h"
#include "ElementInlines.h"
#include "EventNames.h"
#include "HTMLDetailsElement.h"
#include "HTMLFormControlElement.h"
#include "HTMLSlotElement.h"
#include "KeyboardEvent.h"
#include "MouseEvent.h"
#include "PlatformMouseEvent.h"
#include "RenderBlockFlow.h"
#include "ShadowRoot.h"
#include "SlotAssignment.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLSummaryElement);
using namespace HTMLNames;
class SummarySlotElement final : public SlotAssignment {
private:
void hostChildElementDidChange(const Element&, ShadowRoot& shadowRoot) override
{
didChangeSlot(SlotAssignment::defaultSlotName(), shadowRoot);
}
const AtomString& slotNameForHostChild(const Node&) const override { return SlotAssignment::defaultSlotName(); }
};
Ref<HTMLSummaryElement> HTMLSummaryElement::create(const QualifiedName& tagName, Document& document)
{
Ref<HTMLSummaryElement> summary = adoptRef(*new HTMLSummaryElement(tagName, document));
summary->addShadowRoot(ShadowRoot::create(document, makeUnique<SummarySlotElement>()));
return summary;
}
HTMLSummaryElement::HTMLSummaryElement(const QualifiedName& tagName, Document& document)
: HTMLElement(tagName, document)
{
ASSERT(hasTagName(summaryTag));
}
RenderPtr<RenderElement> HTMLSummaryElement::createElementRenderer(RenderStyle&& style, const RenderTreePosition&)
{
// <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).
return RenderElement::createFor(*this, WTFMove(style), { RenderElement::ConstructBlockLevelRendererFor::ListItem, RenderElement::ConstructBlockLevelRendererFor::Inline, RenderElement::ConstructBlockLevelRendererFor::TableOrTablePart });
}
void HTMLSummaryElement::didAddUserAgentShadowRoot(ShadowRoot& root)
{
root.appendChild(DetailsMarkerControl::create(document()));
root.appendChild(HTMLSlotElement::create(slotTag, document()));
}
RefPtr<HTMLDetailsElement> HTMLSummaryElement::detailsElement() const
{
auto* parent = parentElement();
if (parent && is<HTMLDetailsElement>(*parent))
return downcast<HTMLDetailsElement>(parent);
// Fallback summary element is in the shadow tree.
auto* host = shadowHost();
if (host && is<HTMLDetailsElement>(*host))
return downcast<HTMLDetailsElement>(host);
return nullptr;
}
bool HTMLSummaryElement::isActiveSummary() const
{
RefPtr<HTMLDetailsElement> details = detailsElement();
if (!details)
return false;
return details->isActiveSummary(*this);
}
static bool isClickableControl(EventTarget* target)
{
if (!is<Element>(target))
return false;
auto& element = downcast<Element>(*target);
return is<HTMLFormControlElement>(element) || is<HTMLFormControlElement>(element.shadowHost());
}
int HTMLSummaryElement::defaultTabIndex() const
{
return isActiveSummary() ? 0 : -1;
}
bool HTMLSummaryElement::supportsFocus() const
{
return isActiveSummary();
}
void HTMLSummaryElement::defaultEventHandler(Event& event)
{
if (isActiveSummary() && renderer()) {
if (event.type() == eventNames().DOMActivateEvent && !isClickableControl(event.target())) {
if (RefPtr<HTMLDetailsElement> details = detailsElement())
details->toggleOpen();
event.setDefaultHandled();
return;
}
if (is<KeyboardEvent>(event)) {
KeyboardEvent& keyboardEvent = downcast<KeyboardEvent>(event);
if (keyboardEvent.type() == eventNames().keydownEvent && keyboardEvent.keyIdentifier() == "U+0020") {
setActive(true, true);
// No setDefaultHandled() - IE dispatches a keypress in this case.
return;
}
if (keyboardEvent.type() == eventNames().keypressEvent) {
switch (keyboardEvent.charCode()) {
case '\r':
dispatchSimulatedClick(&event);
keyboardEvent.setDefaultHandled();
return;
case ' ':
// Prevent scrolling down the page.
keyboardEvent.setDefaultHandled();
return;
}
}
if (keyboardEvent.type() == eventNames().keyupEvent && keyboardEvent.keyIdentifier() == "U+0020") {
if (active())
dispatchSimulatedClick(&event);
keyboardEvent.setDefaultHandled();
return;
}
}
}
HTMLElement::defaultEventHandler(event);
}
bool HTMLSummaryElement::willRespondToMouseClickEvents()
{
if (isActiveSummary() && renderer())
return true;
return HTMLElement::willRespondToMouseClickEvents();
}
}