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      1 /*
      2  * Copyright (C) 2010, 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 "core/rendering/RenderDetailsMarker.h"
     23 
     24 #include "core/HTMLNames.h"
     25 #include "core/dom/Element.h"
     26 #include "core/html/HTMLElement.h"
     27 #include "core/paint/DetailsMarkerPainter.h"
     28 #include "core/rendering/PaintInfo.h"
     29 
     30 namespace blink {
     31 
     32 using namespace HTMLNames;
     33 
     34 RenderDetailsMarker::RenderDetailsMarker(Element* element)
     35     : RenderBlockFlow(element)
     36 {
     37 }
     38 
     39 RenderDetailsMarker::Orientation RenderDetailsMarker::orientation() const
     40 {
     41     switch (style()->writingMode()) {
     42     case TopToBottomWritingMode:
     43         if (style()->isLeftToRightDirection())
     44             return isOpen() ? Down : Right;
     45         return isOpen() ? Down : Left;
     46     case RightToLeftWritingMode:
     47         if (style()->isLeftToRightDirection())
     48             return isOpen() ? Left : Down;
     49         return isOpen() ? Left : Up;
     50     case LeftToRightWritingMode:
     51         if (style()->isLeftToRightDirection())
     52             return isOpen() ? Right : Down;
     53         return isOpen() ? Right : Up;
     54     case BottomToTopWritingMode:
     55         if (style()->isLeftToRightDirection())
     56             return isOpen() ? Up : Right;
     57         return isOpen() ? Up : Left;
     58     }
     59     return Right;
     60 }
     61 
     62 void RenderDetailsMarker::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
     63 {
     64     DetailsMarkerPainter(*this).paint(paintInfo, paintOffset);
     65 }
     66 
     67 bool RenderDetailsMarker::isOpen() const
     68 {
     69     for (RenderObject* renderer = parent(); renderer; renderer = renderer->parent()) {
     70         if (!renderer->node())
     71             continue;
     72         if (isHTMLDetailsElement(*renderer->node()))
     73             return !toElement(renderer->node())->getAttribute(openAttr).isNull();
     74         if (isHTMLInputElement(*renderer->node()))
     75             return true;
     76     }
     77 
     78     return false;
     79 }
     80 
     81 }
     82