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 33#include "core/html/shadow/MeterShadowElement.h" 34 35#include "core/CSSPropertyNames.h" 36#include "core/HTMLNames.h" 37#include "core/html/HTMLMeterElement.h" 38#include "core/rendering/RenderMeter.h" 39#include "core/rendering/RenderTheme.h" 40 41namespace blink { 42 43using namespace HTMLNames; 44 45inline MeterShadowElement::MeterShadowElement(Document& document) 46 : HTMLDivElement(document) 47{ 48} 49 50HTMLMeterElement* MeterShadowElement::meterElement() const 51{ 52 return toHTMLMeterElement(shadowHost()); 53} 54 55bool MeterShadowElement::rendererIsNeeded(const RenderStyle& style) 56{ 57 RenderObject* renderer = meterElement()->renderer(); 58 return renderer && !RenderTheme::theme().supportsMeter(renderer->style()->appearance()) && HTMLDivElement::rendererIsNeeded(style); 59} 60 61inline MeterInnerElement::MeterInnerElement(Document& document) 62 : MeterShadowElement(document) 63{ 64} 65 66PassRefPtrWillBeRawPtr<MeterInnerElement> MeterInnerElement::create(Document& document) 67{ 68 RefPtrWillBeRawPtr<MeterInnerElement> element = adoptRefWillBeNoop(new MeterInnerElement(document)); 69 element->setShadowPseudoId(AtomicString("-webkit-meter-inner-element", AtomicString::ConstructFromLiteral)); 70 return element.release(); 71} 72 73bool MeterInnerElement::rendererIsNeeded(const RenderStyle& style) 74{ 75 if (meterElement()->hasAuthorShadowRoot()) 76 return HTMLDivElement::rendererIsNeeded(style); 77 78 RenderObject* renderer = meterElement()->renderer(); 79 return renderer && !RenderTheme::theme().supportsMeter(renderer->style()->appearance()) && HTMLDivElement::rendererIsNeeded(style); 80} 81 82RenderObject* MeterInnerElement::createRenderer(RenderStyle*) 83{ 84 return new RenderMeter(this); 85} 86 87inline MeterBarElement::MeterBarElement(Document& document) 88 : MeterShadowElement(document) 89{ 90} 91 92PassRefPtrWillBeRawPtr<MeterBarElement> MeterBarElement::create(Document& document) 93{ 94 RefPtrWillBeRawPtr<MeterBarElement> element = adoptRefWillBeNoop(new MeterBarElement(document)); 95 element->setShadowPseudoId(AtomicString("-webkit-meter-bar", AtomicString::ConstructFromLiteral)); 96 return element.release(); 97} 98 99inline MeterValueElement::MeterValueElement(Document& document) 100 : MeterShadowElement(document) 101{ 102} 103 104PassRefPtrWillBeRawPtr<MeterValueElement> MeterValueElement::create(Document& document) 105{ 106 RefPtrWillBeRawPtr<MeterValueElement> element = adoptRefWillBeNoop(new MeterValueElement(document)); 107 element->updatePseudo(); 108 return element.release(); 109} 110 111const AtomicString& MeterValueElement::valuePseudoId() const 112{ 113 DEFINE_STATIC_LOCAL(AtomicString, optimumPseudoId, ("-webkit-meter-optimum-value", AtomicString::ConstructFromLiteral)); 114 DEFINE_STATIC_LOCAL(AtomicString, suboptimumPseudoId, ("-webkit-meter-suboptimum-value", AtomicString::ConstructFromLiteral)); 115 DEFINE_STATIC_LOCAL(AtomicString, evenLessGoodPseudoId, ("-webkit-meter-even-less-good-value", AtomicString::ConstructFromLiteral)); 116 117 HTMLMeterElement* meter = meterElement(); 118 if (!meter) 119 return optimumPseudoId; 120 121 switch (meter->gaugeRegion()) { 122 case HTMLMeterElement::GaugeRegionOptimum: 123 return optimumPseudoId; 124 case HTMLMeterElement::GaugeRegionSuboptimal: 125 return suboptimumPseudoId; 126 case HTMLMeterElement::GaugeRegionEvenLessGood: 127 return evenLessGoodPseudoId; 128 default: 129 ASSERT_NOT_REACHED(); 130 return optimumPseudoId; 131 } 132} 133 134void MeterValueElement::setWidthPercentage(double width) 135{ 136 setInlineStyleProperty(CSSPropertyWidth, width, CSSPrimitiveValue::CSS_PERCENTAGE); 137} 138 139} 140