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 #ifndef HTMLMeterElement_h 22 #define HTMLMeterElement_h 23 24 #include "core/html/LabelableElement.h" 25 26 namespace blink { 27 28 class ExceptionState; 29 class MeterValueElement; 30 class RenderMeter; 31 32 class HTMLMeterElement FINAL : public LabelableElement { 33 DEFINE_WRAPPERTYPEINFO(); 34 public: 35 static PassRefPtrWillBeRawPtr<HTMLMeterElement> create(Document&); 36 37 enum GaugeRegion { 38 GaugeRegionOptimum, 39 GaugeRegionSuboptimal, 40 GaugeRegionEvenLessGood 41 }; 42 43 double value() const; 44 void setValue(double); 45 46 double min() const; 47 void setMin(double); 48 49 double max() const; 50 void setMax(double); 51 52 double low() const; 53 void setLow(double); 54 55 double high() const; 56 void setHigh(double); 57 58 double optimum() const; 59 void setOptimum(double); 60 61 double valueRatio() const; 62 GaugeRegion gaugeRegion() const; 63 canContainRangeEndPoint()64 virtual bool canContainRangeEndPoint() const OVERRIDE { return false; } 65 66 virtual void trace(Visitor*) OVERRIDE; 67 68 private: 69 explicit HTMLMeterElement(Document&); 70 virtual ~HTMLMeterElement(); 71 areAuthorShadowsAllowed()72 virtual bool areAuthorShadowsAllowed() const OVERRIDE { return false; } 73 RenderMeter* renderMeter() const; 74 supportLabels()75 virtual bool supportLabels() const OVERRIDE { return true; } 76 77 virtual RenderObject* createRenderer(RenderStyle*) OVERRIDE; 78 virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE; 79 80 void didElementStateChange(); 81 virtual void didAddUserAgentShadowRoot(ShadowRoot&) OVERRIDE; 82 83 RefPtrWillBeMember<MeterValueElement> m_value; 84 }; 85 86 } // namespace blink 87 88 #endif // HTMLMeterElement_h 89