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      1 /*
      2  * Copyright (C) 2010 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 
     23 #if ENABLE(PROGRESS_TAG)
     24 
     25 #include "AccessibilityProgressIndicator.h"
     26 
     27 #include "FloatConversion.h"
     28 #include "HTMLNames.h"
     29 #include "HTMLProgressElement.h"
     30 #include "RenderObject.h"
     31 #include "RenderProgress.h"
     32 
     33 namespace WebCore {
     34 
     35 using namespace HTMLNames;
     36 
     37 AccessibilityProgressIndicator::AccessibilityProgressIndicator(RenderProgress* renderer)
     38     : AccessibilityRenderObject(renderer)
     39 {
     40 }
     41 
     42 PassRefPtr<AccessibilityProgressIndicator> AccessibilityProgressIndicator::create(RenderProgress* renderer)
     43 {
     44     return adoptRef(new AccessibilityProgressIndicator(renderer));
     45 }
     46 
     47 bool AccessibilityProgressIndicator::accessibilityIsIgnored() const
     48 {
     49     return accessibilityIsIgnoredBase() == IgnoreObject;
     50 }
     51 
     52 float AccessibilityProgressIndicator::valueForRange() const
     53 {
     54     if (element()->position() >= 0)
     55         return narrowPrecisionToFloat(element()->value());
     56     // Indeterminate progress bar should return 0.
     57     return 0.0f;
     58 }
     59 
     60 float AccessibilityProgressIndicator::maxValueForRange() const
     61 {
     62     return narrowPrecisionToFloat(element()->max());
     63 }
     64 
     65 float AccessibilityProgressIndicator::minValueForRange() const
     66 {
     67     return 0.0f;
     68 }
     69 
     70 HTMLProgressElement* AccessibilityProgressIndicator::element() const
     71 {
     72     return toRenderProgress(m_renderer)->progressElement();
     73 }
     74 
     75 
     76 } // namespace WebCore
     77 
     78 #endif // ENABLE(PROGRESS_TAG)
     79