author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 04 Oct 2010 01:32:07 +0300 | |
changeset 2 | 303757a437d3 |
parent 0 | 4f2f89ce4247 |
permissions | -rw-r--r-- |
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/* |
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* CSS Media Query Evaluator |
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* |
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* Copyright (C) 2006 Kimmo Kinnunen <kimmo.t.kinnunen@nokia.com>. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY |
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include "config.h" |
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#include "MediaQueryEvaluator.h" |
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#include "Chrome.h" |
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#include "ChromeClient.h" |
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#include "CSSPrimitiveValue.h" |
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#include "CSSStyleSelector.h" |
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#include "CSSValueList.h" |
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#include "FloatRect.h" |
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#include "Frame.h" |
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#include "FrameView.h" |
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#include "IntRect.h" |
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#include "MediaFeatureNames.h" |
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#include "MediaList.h" |
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#include "MediaQuery.h" |
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#include "MediaQueryExp.h" |
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#include "NodeRenderStyle.h" |
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#include "Page.h" |
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#include "RenderView.h" |
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#include "RenderStyle.h" |
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#include "PlatformScreen.h" |
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#include <wtf/HashMap.h> |
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#if ENABLE(3D_RENDERING) && USE(ACCELERATED_COMPOSITING) |
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#include "RenderLayerCompositor.h" |
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#endif |
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namespace WebCore { |
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using namespace MediaFeatureNames; |
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enum MediaFeaturePrefix { MinPrefix, MaxPrefix, NoPrefix }; |
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typedef bool (*EvalFunc)(CSSValue*, RenderStyle*, Frame*, MediaFeaturePrefix); |
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typedef HashMap<AtomicStringImpl*, EvalFunc> FunctionMap; |
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static FunctionMap* gFunctionMap; |
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|
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/* |
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* FIXME: following media features are not implemented: color_index, scan, resolution |
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* |
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* color_index, min-color-index, max_color_index: It's unknown how to retrieve |
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* the information if the display mode is indexed |
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* scan: The "scan" media feature describes the scanning process of |
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* tv output devices. It's unknown how to retrieve this information from |
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* the platform |
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* resolution, min-resolution, max-resolution: css parser doesn't seem to |
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* support CSS_DIMENSION |
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*/ |
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MediaQueryEvaluator::MediaQueryEvaluator(bool mediaFeatureResult) |
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: m_frame(0) |
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, m_style(0) |
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, m_expResult(mediaFeatureResult) |
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{ |
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} |
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|
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MediaQueryEvaluator:: MediaQueryEvaluator(const String& acceptedMediaType, bool mediaFeatureResult) |
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: m_mediaType(acceptedMediaType) |
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, m_frame(0) |
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, m_style(0) |
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, m_expResult(mediaFeatureResult) |
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{ |
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} |
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MediaQueryEvaluator:: MediaQueryEvaluator(const char* acceptedMediaType, bool mediaFeatureResult) |
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: m_mediaType(acceptedMediaType) |
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, m_frame(0) |
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, m_style(0) |
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, m_expResult(mediaFeatureResult) |
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{ |
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} |
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MediaQueryEvaluator:: MediaQueryEvaluator(const String& acceptedMediaType, Frame* frame, RenderStyle* style) |
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: m_mediaType(acceptedMediaType) |
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102 |
, m_frame(frame) |
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103 |
, m_style(style) |
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104 |
, m_expResult(false) // doesn't matter when we have m_frame and m_style |
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105 |
{ |
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106 |
} |
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107 |
|
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108 |
MediaQueryEvaluator::~MediaQueryEvaluator() |
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109 |
{ |
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110 |
} |
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111 |
|
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112 |
bool MediaQueryEvaluator::mediaTypeMatch(const String& mediaTypeToMatch) const |
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113 |
{ |
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114 |
return mediaTypeToMatch.isEmpty() |
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115 |
|| equalIgnoringCase(mediaTypeToMatch, "all") |
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116 |
|| equalIgnoringCase(mediaTypeToMatch, m_mediaType); |
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117 |
} |
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118 |
|
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119 |
bool MediaQueryEvaluator::mediaTypeMatchSpecific(const char* mediaTypeToMatch) const |
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120 |
{ |
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121 |
// Like mediaTypeMatch, but without the special cases for "" and "all". |
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122 |
ASSERT(mediaTypeToMatch); |
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ASSERT(mediaTypeToMatch[0] != '\0'); |
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ASSERT(!equalIgnoringCase(mediaTypeToMatch, String("all"))); |
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return equalIgnoringCase(mediaTypeToMatch, m_mediaType); |
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126 |
} |
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127 |
|
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128 |
static bool applyRestrictor(MediaQuery::Restrictor r, bool value) |
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129 |
{ |
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return r == MediaQuery::Not ? !value : value; |
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131 |
} |
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132 |
|
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133 |
bool MediaQueryEvaluator::eval(const MediaList* mediaList, CSSStyleSelector* styleSelector) const |
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134 |
{ |
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135 |
if (!mediaList) |
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136 |
return true; |
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137 |
|
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138 |
const Vector<MediaQuery*>& queries = mediaList->mediaQueries(); |
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139 |
if (!queries.size()) |
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return true; // empty query list evaluates to true |
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141 |
|
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142 |
// iterate over queries, stop if any of them eval to true (OR semantics) |
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143 |
bool result = false; |
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for (size_t i = 0; i < queries.size() && !result; ++i) { |
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145 |
MediaQuery* query = queries.at(i); |
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146 |
|
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if (query->ignored()) |
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148 |
continue; |
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149 |
|
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150 |
if (mediaTypeMatch(query->mediaType())) { |
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const Vector<MediaQueryExp*>* exps = query->expressions(); |
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152 |
// iterate through expressions, stop if any of them eval to false |
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153 |
// (AND semantics) |
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154 |
size_t j = 0; |
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for (; j < exps->size(); ++j) { |
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bool exprResult = eval(exps->at(j)); |
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if (styleSelector && exps->at(j)->isViewportDependent()) |
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158 |
styleSelector->addViewportDependentMediaQueryResult(exps->at(j), exprResult); |
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159 |
if (!exprResult) |
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160 |
break; |
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161 |
} |
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162 |
|
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163 |
// assume true if we are at the end of the list, |
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164 |
// otherwise assume false |
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165 |
result = applyRestrictor(query->restrictor(), exps->size() == j); |
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166 |
} else |
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167 |
result = applyRestrictor(query->restrictor(), false); |
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168 |
} |
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169 |
|
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170 |
return result; |
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171 |
} |
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172 |
|
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173 |
static bool parseAspectRatio(CSSValue* value, int& h, int& v) |
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174 |
{ |
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175 |
if (value->isValueList()) { |
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CSSValueList* valueList = static_cast<CSSValueList*>(value); |
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177 |
if (valueList->length() == 3) { |
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178 |
CSSValue* i0 = valueList->itemWithoutBoundsCheck(0); |
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179 |
CSSValue* i1 = valueList->itemWithoutBoundsCheck(1); |
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CSSValue* i2 = valueList->itemWithoutBoundsCheck(2); |
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if (i0->isPrimitiveValue() && static_cast<CSSPrimitiveValue*>(i0)->primitiveType() == CSSPrimitiveValue::CSS_NUMBER |
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&& i1->isPrimitiveValue() && static_cast<CSSPrimitiveValue*>(i1)->primitiveType() == CSSPrimitiveValue::CSS_STRING |
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&& i2->isPrimitiveValue() && static_cast<CSSPrimitiveValue*>(i2)->primitiveType() == CSSPrimitiveValue::CSS_NUMBER) { |
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String str = static_cast<CSSPrimitiveValue*>(i1)->getStringValue(); |
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185 |
if (!str.isNull() && str.length() == 1 && str[0] == '/') { |
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h = static_cast<CSSPrimitiveValue*>(i0)->getIntValue(CSSPrimitiveValue::CSS_NUMBER); |
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v = static_cast<CSSPrimitiveValue*>(i2)->getIntValue(CSSPrimitiveValue::CSS_NUMBER); |
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188 |
return true; |
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189 |
} |
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190 |
} |
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191 |
} |
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192 |
} |
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193 |
return false; |
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194 |
} |
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195 |
|
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196 |
template<typename T> |
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bool compareValue(T a, T b, MediaFeaturePrefix op) |
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198 |
{ |
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switch (op) { |
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200 |
case MinPrefix: |
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201 |
return a >= b; |
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202 |
case MaxPrefix: |
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203 |
return a <= b; |
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204 |
case NoPrefix: |
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return a == b; |
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} |
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|
207 |
return false; |
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208 |
} |
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|
209 |
|
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|
210 |
static bool numberValue(CSSValue* value, float& result) |
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211 |
{ |
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if (value->isPrimitiveValue() |
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&& static_cast<CSSPrimitiveValue*>(value)->primitiveType() == CSSPrimitiveValue::CSS_NUMBER) { |
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result = static_cast<CSSPrimitiveValue*>(value)->getFloatValue(CSSPrimitiveValue::CSS_NUMBER); |
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|
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return true; |
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216 |
} |
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|
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return false; |
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|
218 |
} |
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|
219 |
|
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static bool colorMediaFeatureEval(CSSValue* value, RenderStyle*, Frame* frame, MediaFeaturePrefix op) |
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221 |
{ |
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int bitsPerComponent = screenDepthPerComponent(frame->page()->mainFrame()->view()); |
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float number; |
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if (value) |
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return numberValue(value, number) && compareValue(bitsPerComponent, static_cast<int>(number), op); |
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|
226 |
|
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return bitsPerComponent != 0; |
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} |
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|
229 |
|
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230 |
static bool monochromeMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix op) |
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231 |
{ |
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if (!screenIsMonochrome(frame->page()->mainFrame()->view())) { |
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|
233 |
if (value) { |
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float number; |
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return numberValue(value, number) && compareValue(0, static_cast<int>(number), op); |
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|
236 |
} |
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|
237 |
return false; |
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|
238 |
} |
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|
239 |
|
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|
240 |
return colorMediaFeatureEval(value, style, frame, op); |
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|
241 |
} |
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|
242 |
|
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|
243 |
static bool orientationMediaFeatureEval(CSSValue* value, RenderStyle*, Frame* frame, MediaFeaturePrefix) |
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244 |
{ |
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// A missing parameter should fail |
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|
246 |
if (!value) |
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|
247 |
return false; |
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|
248 |
|
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|
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FrameView* view = frame->view(); |
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|
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int width = view->layoutWidth(); |
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|
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int height = view->layoutHeight(); |
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if (width > height) // Square viewport is portrait |
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return "landscape" == static_cast<CSSPrimitiveValue*>(value)->getStringValue(); |
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|
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return "portrait" == static_cast<CSSPrimitiveValue*>(value)->getStringValue(); |
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|
255 |
} |
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|
256 |
|
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|
257 |
static bool aspect_ratioMediaFeatureEval(CSSValue* value, RenderStyle*, Frame* frame, MediaFeaturePrefix op) |
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|
258 |
{ |
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|
259 |
if (value) { |
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|
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FrameView* view = frame->view(); |
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|
261 |
int width = view->layoutWidth(); |
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|
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int height = view->layoutHeight(); |
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|
263 |
int h = 0; |
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Revision: 201037
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|
264 |
int v = 0; |
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Revision: 201037
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|
265 |
if (parseAspectRatio(value, h, v)) |
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Revision: 201037
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|
266 |
return v != 0 && compareValue(width * v, height * h, op); |
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|
267 |
return false; |
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|
268 |
} |
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Revision: 201037
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diff
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|
269 |
|
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Revision: 201037
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|
270 |
// ({,min-,max-}aspect-ratio) |
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|
271 |
// assume if we have a device, its aspect ratio is non-zero |
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|
272 |
return true; |
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|
273 |
} |
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|
274 |
|
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|
275 |
static bool device_aspect_ratioMediaFeatureEval(CSSValue* value, RenderStyle*, Frame* frame, MediaFeaturePrefix op) |
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|
276 |
{ |
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Revision: 201037
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|
277 |
if (value) { |
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Revision: 201037
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|
278 |
FloatRect sg = screenRect(frame->page()->mainFrame()->view()); |
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|
279 |
int h = 0; |
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Revision: 201037
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|
280 |
int v = 0; |
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Revision: 201037
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|
281 |
if (parseAspectRatio(value, h, v)) |
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|
282 |
return v != 0 && compareValue(static_cast<int>(sg.width()) * v, static_cast<int>(sg.height()) * h, op); |
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|
283 |
return false; |
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|
284 |
} |
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diff
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|
285 |
|
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Revision: 201037
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|
286 |
// ({,min-,max-}device-aspect-ratio) |
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|
287 |
// assume if we have a device, its aspect ratio is non-zero |
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|
288 |
return true; |
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Revision: 201037
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diff
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|
289 |
} |
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Revision: 201037
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diff
changeset
|
290 |
|
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Revision: 201037
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|
291 |
static bool device_pixel_ratioMediaFeatureEval(CSSValue *value, RenderStyle*, Frame* frame, MediaFeaturePrefix op) |
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|
292 |
{ |
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Revision: 201037
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|
293 |
if (value) |
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Revision: 201037
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|
294 |
return value->isPrimitiveValue() && compareValue(frame->page()->chrome()->scaleFactor(), static_cast<CSSPrimitiveValue*>(value)->getFloatValue(), op); |
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|
295 |
|
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Revision: 201037
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|
296 |
return frame->page()->chrome()->scaleFactor() != 0; |
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Revision: 201037
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|
297 |
} |
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Revision: 201037
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diff
changeset
|
298 |
|
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Revision: 201037
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diff
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|
299 |
static bool gridMediaFeatureEval(CSSValue* value, RenderStyle*, Frame*, MediaFeaturePrefix op) |
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Revision: 201037
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|
300 |
{ |
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Revision: 201037
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parents:
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|
301 |
// if output device is bitmap, grid: 0 == true |
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Revision: 201037
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|
302 |
// assume we have bitmap device |
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Revision: 201037
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diff
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|
303 |
float number; |
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Revision: 201037
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parents:
diff
changeset
|
304 |
if (value && numberValue(value, number)) |
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Revision: 201037
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parents:
diff
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|
305 |
return compareValue(static_cast<int>(number), 0, op); |
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Revision: 201037
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diff
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|
306 |
return false; |
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} |
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static bool device_heightMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix op) |
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{ |
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if (value) { |
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FloatRect sg = screenRect(frame->page()->mainFrame()->view()); |
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RenderStyle* rootStyle = frame->document()->documentElement()->renderStyle(); |
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return value->isPrimitiveValue() && compareValue(static_cast<int>(sg.height()), static_cast<CSSPrimitiveValue*>(value)->computeLengthInt(style, rootStyle), op); |
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} |
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// ({,min-,max-}device-height) |
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// assume if we have a device, assume non-zero |
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return true; |
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} |
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|
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static bool device_widthMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix op) |
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{ |
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if (value) { |
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FloatRect sg = screenRect(frame->page()->mainFrame()->view()); |
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RenderStyle* rootStyle = frame->document()->documentElement()->renderStyle(); |
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return value->isPrimitiveValue() && compareValue(static_cast<int>(sg.width()), static_cast<CSSPrimitiveValue*>(value)->computeLengthInt(style, rootStyle), op); |
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} |
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// ({,min-,max-}device-width) |
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// assume if we have a device, assume non-zero |
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return true; |
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} |
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|
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|
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|
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static bool heightMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix op) |
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|
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{ |
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FrameView* view = frame->view(); |
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RenderStyle* rootStyle = frame->document()->documentElement()->renderStyle(); |
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|
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|
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if (value) |
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return value->isPrimitiveValue() && compareValue(view->layoutHeight(), static_cast<CSSPrimitiveValue*>(value)->computeLengthInt(style, rootStyle), op); |
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|
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|
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return view->layoutHeight() != 0; |
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|
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} |
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|
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|
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static bool widthMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix op) |
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{ |
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FrameView* view = frame->view(); |
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RenderStyle* rootStyle = frame->document()->documentElement()->renderStyle(); |
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|
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|
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if (value) |
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return value->isPrimitiveValue() && compareValue(view->layoutWidth(), static_cast<CSSPrimitiveValue*>(value)->computeLengthInt(style, rootStyle), op); |
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|
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|
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return view->layoutWidth() != 0; |
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|
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} |
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|
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|
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// rest of the functions are trampolines which set the prefix according to the media feature expression used |
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|
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|
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static bool min_colorMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
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|
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{ |
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return colorMediaFeatureEval(value, style, frame, MinPrefix); |
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|
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} |
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|
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|
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static bool max_colorMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
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|
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{ |
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|
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return colorMediaFeatureEval(value, style, frame, MaxPrefix); |
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|
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} |
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|
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|
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|
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static bool min_monochromeMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
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|
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{ |
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|
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return monochromeMediaFeatureEval(value, style, frame, MinPrefix); |
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|
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} |
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|
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|
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|
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static bool max_monochromeMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
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|
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{ |
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|
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return monochromeMediaFeatureEval(value, style, frame, MaxPrefix); |
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|
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} |
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|
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|
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|
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static bool min_aspect_ratioMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
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|
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{ |
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|
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return aspect_ratioMediaFeatureEval(value, style, frame, MinPrefix); |
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|
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} |
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|
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|
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|
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static bool max_aspect_ratioMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
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|
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{ |
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|
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return aspect_ratioMediaFeatureEval(value, style, frame, MaxPrefix); |
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|
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} |
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|
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|
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|
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static bool min_device_aspect_ratioMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
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|
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{ |
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|
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return device_aspect_ratioMediaFeatureEval(value, style, frame, MinPrefix); |
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|
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} |
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|
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|
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|
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static bool max_device_aspect_ratioMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
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|
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{ |
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|
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return device_aspect_ratioMediaFeatureEval(value, style, frame, MaxPrefix); |
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|
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} |
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|
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|
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|
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static bool min_device_pixel_ratioMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
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|
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{ |
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|
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return device_pixel_ratioMediaFeatureEval(value, style, frame, MinPrefix); |
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|
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} |
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|
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|
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|
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static bool max_device_pixel_ratioMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
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|
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{ |
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|
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return device_pixel_ratioMediaFeatureEval(value, style, frame, MaxPrefix); |
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|
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} |
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|
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|
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|
407 |
static bool min_heightMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
return heightMediaFeatureEval(value, style, frame, MinPrefix); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
410 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
411 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
412 |
static bool max_heightMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
413 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
414 |
return heightMediaFeatureEval(value, style, frame, MaxPrefix); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
415 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
416 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
417 |
static bool min_widthMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
418 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
419 |
return widthMediaFeatureEval(value, style, frame, MinPrefix); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
420 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
421 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
422 |
static bool max_widthMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
423 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
424 |
return widthMediaFeatureEval(value, style, frame, MaxPrefix); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
425 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
426 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
427 |
static bool min_device_heightMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
428 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
429 |
return device_heightMediaFeatureEval(value, style, frame, MinPrefix); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
430 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
431 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
432 |
static bool max_device_heightMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
433 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
434 |
return device_heightMediaFeatureEval(value, style, frame, MaxPrefix); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
435 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
436 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
437 |
static bool min_device_widthMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
438 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
439 |
return device_widthMediaFeatureEval(value, style, frame, MinPrefix); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
440 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
441 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
442 |
static bool max_device_widthMediaFeatureEval(CSSValue* value, RenderStyle* style, Frame* frame, MediaFeaturePrefix) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
443 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
444 |
return device_widthMediaFeatureEval(value, style, frame, MaxPrefix); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
445 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
446 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
447 |
static bool animationMediaFeatureEval(CSSValue* value, RenderStyle*, Frame*, MediaFeaturePrefix op) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
448 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
449 |
if (value) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
450 |
float number; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
451 |
return numberValue(value, number) && compareValue(1, static_cast<int>(number), op); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
452 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
453 |
return true; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
454 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
455 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
456 |
static bool transitionMediaFeatureEval(CSSValue* value, RenderStyle*, Frame*, MediaFeaturePrefix op) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
457 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
458 |
if (value) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
459 |
float number; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
460 |
return numberValue(value, number) && compareValue(1, static_cast<int>(number), op); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
461 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
462 |
return true; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
463 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
464 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
465 |
static bool transform_2dMediaFeatureEval(CSSValue* value, RenderStyle*, Frame*, MediaFeaturePrefix op) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
466 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
467 |
if (value) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
468 |
float number; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
469 |
return numberValue(value, number) && compareValue(1, static_cast<int>(number), op); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
470 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
471 |
return true; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
472 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
473 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
474 |
static bool transform_3dMediaFeatureEval(CSSValue* value, RenderStyle*, Frame* frame, MediaFeaturePrefix op) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
475 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
476 |
bool returnValueIfNoParameter; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
477 |
int have3dRendering; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
478 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
479 |
#if ENABLE(3D_RENDERING) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
480 |
bool threeDEnabled = false; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
481 |
#if USE(ACCELERATED_COMPOSITING) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
482 |
if (RenderView* view = frame->contentRenderer()) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
483 |
threeDEnabled = view->compositor()->hasAcceleratedCompositing(); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
484 |
#endif |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
485 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
486 |
returnValueIfNoParameter = threeDEnabled; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
487 |
have3dRendering = threeDEnabled ? 1 : 0; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
488 |
#else |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
489 |
UNUSED_PARAM(frame); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
490 |
returnValueIfNoParameter = false; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
491 |
have3dRendering = 0; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
492 |
#endif |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
493 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
494 |
if (value) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
495 |
float number; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
496 |
return numberValue(value, number) && compareValue(have3dRendering, static_cast<int>(number), op); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
497 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
498 |
return returnValueIfNoParameter; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
499 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
500 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
501 |
static bool view_modeMediaFeatureEval(CSSValue* value, RenderStyle*, Frame* frame, MediaFeaturePrefix op) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
502 |
{ |
2
303757a437d3
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
503 |
UNUSED_PARAM(op); |
303757a437d3
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
504 |
if (!value) |
303757a437d3
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
505 |
return true; |
303757a437d3
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
506 |
return Page::stringToViewMode(static_cast<CSSPrimitiveValue*>(value)->getStringValue()) == frame->page()->viewMode(); |
0
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
507 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
508 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
509 |
static void createFunctionMap() |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
510 |
{ |
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// Create the table. |
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gFunctionMap = new FunctionMap; |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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#define ADD_TO_FUNCTIONMAP(name, str) \ |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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gFunctionMap->set(name##MediaFeature.impl(), name##MediaFeatureEval); |
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CSS_MEDIAQUERY_NAMES_FOR_EACH_MEDIAFEATURE(ADD_TO_FUNCTIONMAP); |
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#undef ADD_TO_FUNCTIONMAP |
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} |
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518 |
|
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Revision: 201037
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bool MediaQueryEvaluator::eval(const MediaQueryExp* expr) const |
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520 |
{ |
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if (!m_frame || !m_style) |
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return m_expResult; |
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523 |
|
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if (!expr->isValid()) |
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return false; |
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526 |
|
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if (!gFunctionMap) |
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createFunctionMap(); |
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|
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Revision: 201037
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// call the media feature evaluation function. Assume no prefix |
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// and let trampoline functions override the prefix if prefix is |
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// used |
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EvalFunc func = gFunctionMap->get(expr->mediaFeature().impl()); |
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if (func) |
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return func(expr->value(), m_style, m_frame, NoPrefix); |
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|
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return false; |
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} |
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539 |
|
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Revision: 201037
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} // namespace |