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/*
* Copyright (C) 2010, 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 "HTMLDetailsElement.h"
#include "HTMLNames.h"
#include "HTMLSummaryElement.h"
#include "LocalizedStrings.h"
#include "MouseEvent.h"
#include "RenderDetails.h"
#include "Text.h"
namespace WebCore {
using namespace HTMLNames;
PassRefPtr<HTMLDetailsElement> HTMLDetailsElement::create(const QualifiedName& tagName, Document* document)
{
return adoptRef(new HTMLDetailsElement(tagName, document));
}
HTMLDetailsElement::HTMLDetailsElement(const QualifiedName& tagName, Document* document)
: HTMLElement(tagName, document)
, m_mainSummary(0)
, m_isOpen(false)
{
ASSERT(hasTagName(detailsTag));
}
RenderObject* HTMLDetailsElement::createRenderer(RenderArena* arena, RenderStyle*)
{
return new (arena) RenderDetails(this);
}
Node* HTMLDetailsElement::findSummaryFor(ContainerNode* container)
{
for (Node* child = container->firstChild(); child; child = child->nextSibling()) {
if (child->hasTagName(summaryTag))
return child;
}
return 0;
}
Node* HTMLDetailsElement::findMainSummary()
{
Node* found = findSummaryFor(this);
if (found) {
removeShadowRoot();
return found;
}
createShadowSubtree();
found = findSummaryFor(shadowRoot());
ASSERT(found);
return found;
}
void HTMLDetailsElement::refreshMainSummary(RefreshRenderer refreshRenderer)
{
RefPtr<Node> oldSummary = m_mainSummary;
m_mainSummary = findMainSummary();
if (oldSummary == m_mainSummary || !attached())
return;
if (oldSummary && oldSummary->parentNodeForRenderingAndStyle()) {
oldSummary->detach();
oldSummary->attach();
}
if (refreshRenderer == RefreshRendererAllowed) {
m_mainSummary->detach();
m_mainSummary->attach();
}
}
void HTMLDetailsElement::createShadowSubtree()
{
if (shadowRoot())
return;
RefPtr<HTMLSummaryElement> defaultSummary = HTMLSummaryElement::create(summaryTag, document());
ExceptionCode ec = 0;
defaultSummary->appendChild(Text::create(document(), defaultDetailsSummaryText()), ec);
ensureShadowRoot()->appendChild(defaultSummary, ec, true);
}
void HTMLDetailsElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
{
HTMLElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
// If childCountDelta is less then zero and the main summary has changed it must be because previous main
// summary was removed. The new main summary was then inside the unrevealed content and needs to be
// reattached to create its renderer. If childCountDelta is not less then zero then a new <summary> element
// has been added and it will be attached without our help.
if (!changedByParser)
refreshMainSummary(childCountDelta < 0 ? RefreshRendererAllowed : RefreshRendererSupressed);
}
void HTMLDetailsElement::finishParsingChildren()
{
HTMLElement::finishParsingChildren();
refreshMainSummary(RefreshRendererAllowed);
}
void HTMLDetailsElement::parseMappedAttribute(Attribute* attr)
{
if (attr->name() == openAttr) {
bool oldValue = m_isOpen;
m_isOpen = !attr->value().isNull();
if (attached() && oldValue != m_isOpen) {
detach();
attach();
}
} else
HTMLElement::parseMappedAttribute(attr);
}
bool HTMLDetailsElement::childShouldCreateRenderer(Node* child) const
{
return m_isOpen || child == m_mainSummary;
}
void HTMLDetailsElement::toggleOpen()
{
setAttribute(openAttr, m_isOpen ? nullAtom : emptyAtom);
}
}
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