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 #include "config.h" 6 #include "core/css/MediaValuesCached.h" 7 8 #include "core/css/CSSPrimitiveValue.h" 9 #include "core/dom/Document.h" 10 #include "core/frame/LocalFrame.h" 11 #include "core/html/imports/HTMLImportsController.h" 12 #include "core/rendering/RenderObject.h" 13 14 namespace WebCore { 15 16 PassRefPtr<MediaValues> MediaValuesCached::create() 17 { 18 return adoptRef(new MediaValuesCached()); 19 } 20 21 PassRefPtr<MediaValues> MediaValuesCached::create(MediaValuesCachedData& data) 22 { 23 return adoptRef(new MediaValuesCached(data)); 24 } 25 26 PassRefPtr<MediaValues> MediaValuesCached::create(Document& document) 27 { 28 Document* executingDocument = document.importsController() ? document.importsController()->master() : &document; 29 ASSERT(executingDocument); 30 return MediaValuesCached::create(executingDocument->frame()); 31 } 32 33 PassRefPtr<MediaValues> MediaValuesCached::create(LocalFrame* frame) 34 { 35 // FIXME - Added an assert here so we can better understand when a frame is present without its view(). 36 ASSERT(!frame || frame->view()); 37 // FIXME - Because of crbug.com/371084, document()->renderView() may be null here. 38 if (!frame || !frame->view() || !frame->document() || !frame->document()->renderView()) 39 return adoptRef(new MediaValuesCached()); 40 return adoptRef(new MediaValuesCached(frame)); 41 } 42 43 MediaValuesCached::MediaValuesCached() 44 { 45 } 46 47 MediaValuesCached::MediaValuesCached(LocalFrame* frame) 48 { 49 ASSERT(isMainThread()); 50 ASSERT(frame); 51 // In case that frame is missing (e.g. for images that their document does not have a frame) 52 // We simply leave the MediaValues object with the default MediaValuesCachedData values. 53 m_data.viewportWidth = calculateViewportWidth(frame); 54 m_data.viewportHeight = calculateViewportHeight(frame); 55 m_data.deviceWidth = calculateDeviceWidth(frame); 56 m_data.deviceHeight = calculateDeviceHeight(frame); 57 m_data.devicePixelRatio = calculateDevicePixelRatio(frame); 58 m_data.colorBitsPerComponent = calculateColorBitsPerComponent(frame); 59 m_data.monochromeBitsPerComponent = calculateMonochromeBitsPerComponent(frame); 60 m_data.pointer = calculateLeastCapablePrimaryPointerDeviceType(frame); 61 m_data.defaultFontSize = calculateDefaultFontSize(frame); 62 m_data.threeDEnabled = calculateThreeDEnabled(frame); 63 m_data.scanMediaType = calculateScanMediaType(frame); 64 m_data.screenMediaType = calculateScreenMediaType(frame); 65 m_data.printMediaType = calculatePrintMediaType(frame); 66 m_data.strictMode = calculateStrictMode(frame); 67 } 68 69 MediaValuesCached::MediaValuesCached(const MediaValuesCachedData& data) 70 : m_data(data) 71 { 72 } 73 74 PassRefPtr<MediaValues> MediaValuesCached::copy() const 75 { 76 return adoptRef(new MediaValuesCached(m_data)); 77 } 78 79 bool MediaValuesCached::computeLength(double value, CSSPrimitiveValue::UnitType type, int& result) const 80 { 81 return MediaValues::computeLength(value, type, m_data.defaultFontSize, m_data.viewportWidth, m_data.viewportHeight, result); 82 } 83 84 bool MediaValuesCached::computeLength(double value, CSSPrimitiveValue::UnitType type, double& result) const 85 { 86 return MediaValues::computeLength(value, type, m_data.defaultFontSize, m_data.viewportWidth, m_data.viewportHeight, result); 87 } 88 89 bool MediaValuesCached::isSafeToSendToAnotherThread() const 90 { 91 return hasOneRef(); 92 } 93 94 int MediaValuesCached::viewportWidth() const 95 { 96 return m_data.viewportWidth; 97 } 98 99 int MediaValuesCached::viewportHeight() const 100 { 101 return m_data.viewportHeight; 102 } 103 104 int MediaValuesCached::deviceWidth() const 105 { 106 return m_data.deviceWidth; 107 } 108 109 int MediaValuesCached::deviceHeight() const 110 { 111 return m_data.deviceHeight; 112 } 113 114 float MediaValuesCached::devicePixelRatio() const 115 { 116 return m_data.devicePixelRatio; 117 } 118 119 int MediaValuesCached::colorBitsPerComponent() const 120 { 121 return m_data.colorBitsPerComponent; 122 } 123 124 int MediaValuesCached::monochromeBitsPerComponent() const 125 { 126 return m_data.monochromeBitsPerComponent; 127 } 128 129 MediaValues::PointerDeviceType MediaValuesCached::pointer() const 130 { 131 return m_data.pointer; 132 } 133 134 bool MediaValuesCached::threeDEnabled() const 135 { 136 return m_data.threeDEnabled; 137 } 138 139 bool MediaValuesCached::scanMediaType() const 140 { 141 return m_data.scanMediaType; 142 } 143 144 bool MediaValuesCached::screenMediaType() const 145 { 146 return m_data.screenMediaType; 147 } 148 149 bool MediaValuesCached::printMediaType() const 150 { 151 return m_data.printMediaType; 152 } 153 154 bool MediaValuesCached::strictMode() const 155 { 156 return m_data.strictMode; 157 } 158 159 Document* MediaValuesCached::document() const 160 { 161 return 0; 162 } 163 164 bool MediaValuesCached::hasValues() const 165 { 166 return true; 167 } 168 169 } // namespace 170
