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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 "third_party/blink/renderer/core/html/html_details_element.h"
#include "third_party/blink/public/platform/task_type.h"
#include "third_party/blink/renderer/bindings/core/v8/exception_state.h"
#include "third_party/blink/renderer/core/css_property_names.h"
#include "third_party/blink/renderer/core/css_value_keywords.h"
#include "third_party/blink/renderer/core/dom/element_traversal.h"
#include "third_party/blink/renderer/core/dom/events/event.h"
#include "third_party/blink/renderer/core/dom/shadow_root.h"
#include "third_party/blink/renderer/core/dom/text.h"
#include "third_party/blink/renderer/core/frame/use_counter.h"
#include "third_party/blink/renderer/core/html/html_div_element.h"
#include "third_party/blink/renderer/core/html/html_slot_element.h"
#include "third_party/blink/renderer/core/html/html_summary_element.h"
#include "third_party/blink/renderer/core/html/shadow/details_marker_control.h"
#include "third_party/blink/renderer/core/html/shadow/shadow_element_names.h"
#include "third_party/blink/renderer/core/html_names.h"
#include "third_party/blink/renderer/core/layout/layout_block_flow.h"
#include "third_party/blink/renderer/platform/text/platform_locale.h"
namespace blink {
using namespace HTMLNames;
HTMLDetailsElement* HTMLDetailsElement::Create(Document& document) {
HTMLDetailsElement* details = new HTMLDetailsElement(document);
details->EnsureUserAgentShadowRoot();
return details;
}
HTMLDetailsElement::HTMLDetailsElement(Document& document)
: HTMLElement(detailsTag, document), is_open_(false) {
UseCounter::Count(document, WebFeature::kDetailsElement);
}
HTMLDetailsElement::~HTMLDetailsElement() = default;
// static
bool HTMLDetailsElement::IsFirstSummary(const Node& node) {
DCHECK(IsHTMLDetailsElement(node.parentElement()));
if (!IsHTMLSummaryElement(node))
return false;
return node.parentElement() &&
&node ==
Traversal<HTMLSummaryElement>::FirstChild(*node.parentElement());
}
void HTMLDetailsElement::DispatchPendingEvent() {
DispatchEvent(Event::Create(EventTypeNames::toggle));
}
LayoutObject* HTMLDetailsElement::CreateLayoutObject(const ComputedStyle&) {
return new LayoutBlockFlow(this);
}
void HTMLDetailsElement::DidAddUserAgentShadowRoot(ShadowRoot& root) {
HTMLSummaryElement* default_summary =
HTMLSummaryElement::Create(GetDocument());
default_summary->AppendChild(
Text::Create(GetDocument(),
GetLocale().QueryString(WebLocalizedString::kDetailsLabel)));
HTMLSlotElement* summary_slot =
HTMLSlotElement::CreateUserAgentCustomAssignSlot(GetDocument());
summary_slot->SetIdAttribute(ShadowElementNames::DetailsSummary());
summary_slot->AppendChild(default_summary);
root.AppendChild(summary_slot);
HTMLDivElement* content = HTMLDivElement::Create(GetDocument());
content->SetIdAttribute(ShadowElementNames::DetailsContent());
content->AppendChild(
HTMLSlotElement::CreateUserAgentDefaultSlot(GetDocument()));
content->SetInlineStyleProperty(CSSPropertyDisplay, CSSValueNone);
root.AppendChild(content);
}
Element* HTMLDetailsElement::FindMainSummary() const {
if (HTMLSummaryElement* summary =
Traversal<HTMLSummaryElement>::FirstChild(*this))
return summary;
HTMLSlotElement* slot =
ToHTMLSlotElementOrDie(UserAgentShadowRoot()->firstChild());
DCHECK(slot->firstChild());
CHECK(IsHTMLSummaryElement(*slot->firstChild()));
return ToElement(slot->firstChild());
}
void HTMLDetailsElement::ParseAttribute(
const AttributeModificationParams& params) {
if (params.name == openAttr) {
bool old_value = is_open_;
is_open_ = !params.new_value.IsNull();
if (is_open_ == old_value)
return;
// Dispatch toggle event asynchronously.
pending_event_ = PostCancellableTask(
*GetDocument().GetTaskRunner(TaskType::kDOMManipulation), FROM_HERE,
WTF::Bind(&HTMLDetailsElement::DispatchPendingEvent,
WrapPersistent(this)));
Element* content = EnsureUserAgentShadowRoot().getElementById(
ShadowElementNames::DetailsContent());
DCHECK(content);
if (is_open_)
content->RemoveInlineStyleProperty(CSSPropertyDisplay);
else
content->SetInlineStyleProperty(CSSPropertyDisplay, CSSValueNone);
// Invalidate the LayoutDetailsMarker in order to turn the arrow signifying
// if the details element is open or closed.
Element* summary = FindMainSummary();
DCHECK(summary);
Element* control = ToHTMLSummaryElement(summary)->MarkerControl();
if (control && control->GetLayoutObject())
control->GetLayoutObject()->SetShouldDoFullPaintInvalidation();
return;
}
HTMLElement::ParseAttribute(params);
}
void HTMLDetailsElement::ToggleOpen() {
setAttribute(openAttr, is_open_ ? g_null_atom : g_empty_atom);
}
bool HTMLDetailsElement::IsInteractiveContent() const {
return true;
}
} // namespace blink