1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef MediaValuesCached_h 6 #define MediaValuesCached_h 7 8 #include "core/css/MediaValues.h" 9 10 namespace WebCore { 11 12 class MediaValuesCached FINAL : public MediaValues { 13 public: 14 struct MediaValuesCachedData { 15 // Members variables must be thread safe, since they're copied to the parser thread 16 int viewportWidth; 17 int viewportHeight; 18 int deviceWidth; 19 int deviceHeight; 20 float devicePixelRatio; 21 int colorBitsPerComponent; 22 int monochromeBitsPerComponent; 23 PointerDeviceType pointer; 24 int defaultFontSize; 25 bool threeDEnabled; 26 bool scanMediaType; 27 bool screenMediaType; 28 bool printMediaType; 29 bool strictMode; 30 MediaValuesCachedDataMediaValuesCachedData31 MediaValuesCachedData() 32 : viewportWidth(0) 33 , viewportHeight(0) 34 , deviceWidth(0) 35 , deviceHeight(0) 36 , devicePixelRatio(1.0) 37 , colorBitsPerComponent(24) 38 , monochromeBitsPerComponent(0) 39 , pointer(UnknownPointer) 40 , defaultFontSize(16) 41 , threeDEnabled(false) 42 , scanMediaType(false) 43 , screenMediaType(true) 44 , printMediaType(false) 45 , strictMode(true) 46 { 47 } 48 }; 49 50 static PassRefPtr<MediaValues> create(); 51 static PassRefPtr<MediaValues> create(Document&); 52 static PassRefPtr<MediaValues> create(LocalFrame*); 53 static PassRefPtr<MediaValues> create(MediaValuesCachedData&); 54 virtual PassRefPtr<MediaValues> copy() const OVERRIDE; 55 virtual bool isSafeToSendToAnotherThread() const OVERRIDE; 56 virtual bool computeLength(double value, CSSPrimitiveValue::UnitType, int& result) const OVERRIDE; 57 virtual bool computeLength(double value, CSSPrimitiveValue::UnitType, double& result) const OVERRIDE; 58 59 virtual int viewportWidth() const OVERRIDE; 60 virtual int viewportHeight() const OVERRIDE; 61 virtual int deviceWidth() const OVERRIDE; 62 virtual int deviceHeight() const OVERRIDE; 63 virtual float devicePixelRatio() const OVERRIDE; 64 virtual int colorBitsPerComponent() const OVERRIDE; 65 virtual int monochromeBitsPerComponent() const OVERRIDE; 66 virtual PointerDeviceType pointer() const OVERRIDE; 67 virtual bool threeDEnabled() const OVERRIDE; 68 virtual bool scanMediaType() const OVERRIDE; 69 virtual bool screenMediaType() const OVERRIDE; 70 virtual bool printMediaType() const OVERRIDE; 71 virtual bool strictMode() const OVERRIDE; 72 virtual Document* document() const OVERRIDE; 73 virtual bool hasValues() const OVERRIDE; 74 75 protected: 76 MediaValuesCached(); 77 MediaValuesCached(LocalFrame*); 78 MediaValuesCached(const MediaValuesCachedData&); 79 80 MediaValuesCachedData m_data; 81 }; 82 83 } // namespace 84 85 #endif // MediaValuesCached_h 86