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      1 /*
      2  * Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies)
      3  *
      4  * This library is free software; you can redistribute it and/or
      5  * modify it under the terms of the GNU Library General Public
      6  * License as published by the Free Software Foundation; either
      7  * version 2 of the License, or (at your option) any later version.
      8  *
      9  * This library is distributed in the hope that it will be useful,
     10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  * Library General Public License for more details.
     13  *
     14  * You should have received a copy of the GNU Library General Public License
     15  * along with this library; see the file COPYING.LIB.  If not, write to
     16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  * Boston, MA 02110-1301, USA.
     18  *
     19  */
     20 
     21 #include "config.h"
     22 #include "HTMLSummaryElement.h"
     23 
     24 #include "DetailsMarkerControl.h"
     25 #include "HTMLDetailsElement.h"
     26 #include "HTMLNames.h"
     27 #include "MouseEvent.h"
     28 #include "PlatformMouseEvent.h"
     29 #include "RenderSummary.h"
     30 
     31 namespace WebCore {
     32 
     33 using namespace HTMLNames;
     34 
     35 PassRefPtr<HTMLSummaryElement> HTMLSummaryElement::create(const QualifiedName& tagName, Document* document)
     36 {
     37     RefPtr<HTMLSummaryElement> result = adoptRef(new HTMLSummaryElement(tagName, document));
     38     result->createShadowSubtree();
     39     return result;
     40 }
     41 
     42 HTMLSummaryElement::HTMLSummaryElement(const QualifiedName& tagName, Document* document)
     43     : HTMLElement(tagName, document)
     44 {
     45     ASSERT(hasTagName(summaryTag));
     46 }
     47 
     48 RenderObject* HTMLSummaryElement::createRenderer(RenderArena* arena, RenderStyle*)
     49 {
     50     return new (arena) RenderSummary(this);
     51 }
     52 
     53 void HTMLSummaryElement::createShadowSubtree()
     54 {
     55     ExceptionCode ec = 0;
     56     ensureShadowRoot()->appendChild(DetailsMarkerControl::create(document()), ec, true);
     57 }
     58 
     59 HTMLDetailsElement* HTMLSummaryElement::detailsElement() const
     60 {
     61     Element* mayDetails = toElement(parentNodeForRenderingAndStyle());
     62     if (!mayDetails || !mayDetails->hasTagName(detailsTag))
     63         return 0;
     64     return static_cast<HTMLDetailsElement*>(mayDetails);
     65 }
     66 
     67 bool HTMLSummaryElement::isMainSummary() const
     68 {
     69     if (HTMLDetailsElement* details = detailsElement())
     70         return details->mainSummary() == this;
     71     return 0;
     72 }
     73 
     74 void HTMLSummaryElement::defaultEventHandler(Event* event)
     75 {
     76     HTMLElement::defaultEventHandler(event);
     77     if (!isMainSummary() || !renderer() || !renderer()->isSummary() || !event->isMouseEvent() || event->type() != eventNames().clickEvent || event->defaultHandled())
     78         return;
     79 
     80     MouseEvent* mouseEvent = static_cast<MouseEvent*>(event);
     81     if (mouseEvent->button() != LeftButton)
     82         return;
     83 
     84     if (HTMLDetailsElement* details = detailsElement())
     85         details->toggleOpen();
     86     event->setDefaultHandled();
     87 }
     88 
     89 }
     90