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 "CSSPropertyNames.h"
36 #include "HTMLNames.h"
37 #include "core/html/HTMLMeterElement.h"
38 #include "core/rendering/RenderMeter.h"
39 #include "core/rendering/RenderTheme.h"
40
41 namespace WebCore {
42
43 using namespace HTMLNames;
44
MeterShadowElement(Document & document)45 inline MeterShadowElement::MeterShadowElement(Document& document)
46 : HTMLDivElement(document)
47 {
48 }
49
meterElement() const50 HTMLMeterElement* MeterShadowElement::meterElement() const
51 {
52 return toHTMLMeterElement(shadowHost());
53 }
54
rendererIsNeeded(const RenderStyle & style)55 bool 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
MeterInnerElement(Document & document)61 inline MeterInnerElement::MeterInnerElement(Document& document)
62 : MeterShadowElement(document)
63 {
64 }
65
create(Document & document)66 PassRefPtr<MeterInnerElement> MeterInnerElement::create(Document& document)
67 {
68 RefPtr<MeterInnerElement> element = adoptRef(new MeterInnerElement(document));
69 element->setPseudo(AtomicString("-webkit-meter-inner-element", AtomicString::ConstructFromLiteral));
70 return element.release();
71 }
72
rendererIsNeeded(const RenderStyle & style)73 bool 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
createRenderer(RenderStyle *)82 RenderObject* MeterInnerElement::createRenderer(RenderStyle*)
83 {
84 return new RenderMeter(this);
85 }
86
MeterBarElement(Document & document)87 inline MeterBarElement::MeterBarElement(Document& document)
88 : MeterShadowElement(document)
89 {
90 }
91
create(Document & document)92 PassRefPtr<MeterBarElement> MeterBarElement::create(Document& document)
93 {
94 RefPtr<MeterBarElement> element = adoptRef(new MeterBarElement(document));
95 element->setPseudo(AtomicString("-webkit-meter-bar", AtomicString::ConstructFromLiteral));
96 return element.release();
97 }
98
MeterValueElement(Document & document)99 inline MeterValueElement::MeterValueElement(Document& document)
100 : MeterShadowElement(document)
101 {
102 }
103
create(Document & document)104 PassRefPtr<MeterValueElement> MeterValueElement::create(Document& document)
105 {
106 RefPtr<MeterValueElement> element = adoptRef(new MeterValueElement(document));
107 element->updatePseudo();
108 return element.release();
109 }
110
valuePseudoId() const111 const 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
setWidthPercentage(double width)134 void MeterValueElement::setWidthPercentage(double width)
135 {
136 setInlineStyleProperty(CSSPropertyWidth, width, CSSPrimitiveValue::CSS_PERCENTAGE);
137 }
138
139 }
140