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      1 /*
      2  * Copyright (C) 2011 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "DetailsMarkerControl.h"
     33 
     34 #include "HTMLNames.h"
     35 #include "HTMLSummaryElement.h"
     36 #include "RenderDetailsMarker.h"
     37 
     38 namespace WebCore {
     39 
     40 using namespace HTMLNames;
     41 
     42 DetailsMarkerControl::DetailsMarkerControl(Document* document)
     43     : HTMLDivElement(divTag, document)
     44 {
     45 }
     46 
     47 RenderObject* DetailsMarkerControl::createRenderer(RenderArena* arena, RenderStyle*)
     48 {
     49     return new (arena) RenderDetailsMarker(this);
     50 }
     51 
     52 bool DetailsMarkerControl::rendererIsNeeded(RenderStyle* style)
     53 {
     54     return summaryElement()->isMainSummary() && HTMLDivElement::rendererIsNeeded(style);
     55 }
     56 
     57 const AtomicString& DetailsMarkerControl::shadowPseudoId() const
     58 {
     59     DEFINE_STATIC_LOCAL(AtomicString, pseudId, ("-webkit-details-marker"));
     60     return pseudId;
     61 }
     62 
     63 HTMLSummaryElement* DetailsMarkerControl::summaryElement()
     64 {
     65     Node* node = this->shadowAncestorNode();
     66     ASSERT(!node || toElement(node)->hasTagName(summaryTag));
     67     return static_cast<HTMLSummaryElement*>(node);
     68 }
     69 
     70 }
     71