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#if ENABLE(METER_ELEMENT) 25#include "LabelableElement.h" 26 27namespace WebCore { 28 29class MeterValueElement; 30class RenderMeter; 31 32class HTMLMeterElement FINAL : public LabelableElement { 33public: 34 static PassRefPtr<HTMLMeterElement> create(const QualifiedName&, Document*); 35 36 enum GaugeRegion { 37 GaugeRegionOptimum, 38 GaugeRegionSuboptimal, 39 GaugeRegionEvenLessGood 40 }; 41 42 double min() const; 43 void setMin(double, ExceptionCode&); 44 45 double max() const; 46 void setMax(double, ExceptionCode&); 47 48 double value() const; 49 void setValue(double, ExceptionCode&); 50 51 double low() const; 52 void setLow(double, ExceptionCode&); 53 54 double high() const; 55 void setHigh(double, ExceptionCode&); 56 57 double optimum() const; 58 void setOptimum(double, ExceptionCode&); 59 60 double valueRatio() const; 61 GaugeRegion gaugeRegion() const; 62 63 bool canContainRangeEndPoint() const { return false; } 64 65private: 66 HTMLMeterElement(const QualifiedName&, Document*); 67 virtual ~HTMLMeterElement(); 68 69 virtual bool areAuthorShadowsAllowed() const OVERRIDE { return false; } 70 RenderMeter* renderMeter() const; 71 72 virtual bool supportLabels() const OVERRIDE { return true; } 73 74 virtual bool recalcWillValidate() const { return false; } 75 virtual RenderObject* createRenderer(RenderArena*, RenderStyle*); 76 virtual bool childShouldCreateRenderer(const NodeRenderingContext&) const OVERRIDE; 77 virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE; 78 79 void didElementStateChange(); 80 virtual void didAddUserAgentShadowRoot(ShadowRoot*) OVERRIDE; 81 82 RefPtr<MeterValueElement> m_value; 83}; 84 85inline bool isHTMLMeterElement(Node* node) 86{ 87 return node->hasTagName(HTMLNames::meterTag); 88} 89 90inline HTMLMeterElement* toHTMLMeterElement(Node* node) 91{ 92 ASSERT_WITH_SECURITY_IMPLICATION(!node || isHTMLMeterElement(node)); 93 return static_cast<HTMLMeterElement*>(node); 94} 95 96} // namespace 97 98#endif 99#endif 100