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| 1 /* | 1 /* |
| 2 * CSS Media Query | 2 * CSS Media Query |
| 3 * | 3 * |
| 4 * Copyright (C) 2006 Kimmo Kinnunen <kimmo.t.kinnunen@nokia.com>. | 4 * Copyright (C) 2006 Kimmo Kinnunen <kimmo.t.kinnunen@nokia.com>. |
| 5 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). | 5 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
| 6 * Copyright (C) 2013 Apple Inc. All rights reserved. | 6 * Copyright (C) 2013 Apple Inc. All rights reserved. |
| 7 * | 7 * |
| 8 * Redistribution and use in source and binary forms, with or without | 8 * Redistribution and use in source and binary forms, with or without |
| 9 * modification, are permitted provided that the following conditions | 9 * modification, are permitted provided that the following conditions |
| 10 * are met: | 10 * are met: |
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| 23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 24 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 24 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| 25 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 25 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 28 */ | 28 */ |
| 29 | 29 |
| 30 #include "config.h" | 30 #include "config.h" |
| 31 #include "core/css/MediaQueryExp.h" | 31 #include "core/css/MediaQueryExp.h" |
| 32 | 32 |
| 33 #include "core/css/CSSPrimitiveValue.h" | |
| 34 #include "core/css/parser/CSSParserToken.h" | 33 #include "core/css/parser/CSSParserToken.h" |
| 35 #include "core/html/parser/HTMLParserIdioms.h" | 34 #include "core/html/parser/HTMLParserIdioms.h" |
| 36 #include "platform/Decimal.h" | 35 #include "platform/Decimal.h" |
| 37 #include "platform/RuntimeEnabledFeatures.h" | 36 #include "platform/RuntimeEnabledFeatures.h" |
| 38 #include "wtf/text/StringBuffer.h" | 37 #include "wtf/text/StringBuffer.h" |
| 39 #include "wtf/text/StringBuilder.h" | 38 #include "wtf/text/StringBuilder.h" |
| 40 | 39 |
| 41 namespace blink { | 40 namespace blink { |
| 42 | 41 |
| 43 using namespace MediaFeatureNames; | 42 using namespace MediaFeatureNames; |
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| 182 , m_expValue(other.expValue()) | 181 , m_expValue(other.expValue()) |
| 183 { | 182 { |
| 184 } | 183 } |
| 185 | 184 |
| 186 MediaQueryExp::MediaQueryExp(const String& mediaFeature, const MediaQueryExpValu
e& expValue) | 185 MediaQueryExp::MediaQueryExp(const String& mediaFeature, const MediaQueryExpValu
e& expValue) |
| 187 : m_mediaFeature(mediaFeature) | 186 : m_mediaFeature(mediaFeature) |
| 188 , m_expValue(expValue) | 187 , m_expValue(expValue) |
| 189 { | 188 { |
| 190 } | 189 } |
| 191 | 190 |
| 192 CSSValueID cssValueKeywordID(const CSSParserString&); | |
| 193 | |
| 194 PassOwnPtrWillBeRawPtr<MediaQueryExp> MediaQueryExp::createIfValid(const String&
mediaFeature, const Vector<CSSParserToken, 4>& tokenList) | 191 PassOwnPtrWillBeRawPtr<MediaQueryExp> MediaQueryExp::createIfValid(const String&
mediaFeature, const Vector<CSSParserToken, 4>& tokenList) |
| 195 { | 192 { |
| 196 ASSERT(!mediaFeature.isNull()); | 193 ASSERT(!mediaFeature.isNull()); |
| 197 | 194 |
| 198 MediaQueryExpValue expValue; | 195 MediaQueryExpValue expValue; |
| 199 String lowerMediaFeature = attemptStaticStringCreation(mediaFeature.lower())
; | 196 String lowerMediaFeature = attemptStaticStringCreation(mediaFeature.lower())
; |
| 200 | 197 |
| 201 // Create value for media query expression that must have 1 or more values. | 198 // Create value for media query expression that must have 1 or more values. |
| 202 if (tokenList.size() == 0 && featureWithoutValue(lowerMediaFeature)) { | 199 if (tokenList.size() == 0 && featureWithoutValue(lowerMediaFeature)) { |
| 203 // Valid, creates a MediaQueryExp with an 'invalid' MediaQueryExpValue | 200 // Valid, creates a MediaQueryExp with an 'invalid' MediaQueryExpValue |
| 204 } else if (tokenList.size() == 1) { | 201 } else if (tokenList.size() == 1) { |
| 205 CSSParserToken token = tokenList.first(); | 202 CSSParserToken token = tokenList.first(); |
| 206 | 203 |
| 207 if (token.type() == IdentToken) { | 204 if (token.type() == IdentToken) { |
| 208 CSSValueID ident = cssValueKeywordID(token.value()); | 205 CSSValueID ident = token.id(); |
| 209 if (!featureWithValidIdent(lowerMediaFeature, ident)) | 206 if (!featureWithValidIdent(lowerMediaFeature, ident)) |
| 210 return nullptr; | 207 return nullptr; |
| 211 expValue.id = ident; | 208 expValue.id = ident; |
| 212 expValue.unit = CSSPrimitiveValue::UnitType::ValueID; | 209 expValue.unit = CSSPrimitiveValue::UnitType::ValueID; |
| 213 expValue.isID = true; | 210 expValue.isID = true; |
| 214 } else if (token.type() == NumberToken || token.type() == PercentageToke
n || token.type() == DimensionToken) { | 211 } else if (token.type() == NumberToken || token.type() == PercentageToke
n || token.type() == DimensionToken) { |
| 215 // Check for numeric token types since it is only safe for these typ
es to call numericValue. | 212 // Check for numeric token types since it is only safe for these typ
es to call numericValue. |
| 216 if (featureWithValidDensity(lowerMediaFeature, token) | 213 if (featureWithValidDensity(lowerMediaFeature, token) |
| 217 || featureWithValidPositiveLength(lowerMediaFeature, token)) { | 214 || featureWithValidPositiveLength(lowerMediaFeature, token)) { |
| 218 // Media features that must have non-negative <density>, ie. dpp
x, dpi or dpcm, | 215 // Media features that must have non-negative <density>, ie. dpp
x, dpi or dpcm, |
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| 299 output.append('/'); | 296 output.append('/'); |
| 300 output.append(printNumber(denominator)); | 297 output.append(printNumber(denominator)); |
| 301 } else if (isID) { | 298 } else if (isID) { |
| 302 output.append(getValueName(id)); | 299 output.append(getValueName(id)); |
| 303 } | 300 } |
| 304 | 301 |
| 305 return output.toString(); | 302 return output.toString(); |
| 306 } | 303 } |
| 307 | 304 |
| 308 } // namespace | 305 } // namespace |
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