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      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/MediaValuesDynamic.h"
      7 
      8 #include "core/css/CSSHelper.h"
      9 #include "core/css/CSSPrimitiveValue.h"
     10 #include "core/css/CSSToLengthConversionData.h"
     11 #include "core/dom/Document.h"
     12 #include "core/frame/LocalFrame.h"
     13 
     14 namespace WebCore {
     15 
     16 PassRefPtr<MediaValues> MediaValuesDynamic::create(LocalFrame* frame)
     17 {
     18     return adoptRef(new MediaValuesDynamic(frame));
     19 }
     20 
     21 MediaValuesDynamic::MediaValuesDynamic(LocalFrame* frame)
     22     : m_frame(frame)
     23 {
     24     ASSERT(m_frame);
     25 }
     26 
     27 PassRefPtr<MediaValues> MediaValuesDynamic::copy() const
     28 {
     29     return adoptRef(new MediaValuesDynamic(m_frame));
     30 }
     31 
     32 bool MediaValuesDynamic::computeLength(double value, CSSPrimitiveValue::UnitType type, int& result) const
     33 {
     34     return MediaValues::computeLength(value,
     35         type,
     36         calculateDefaultFontSize(m_frame),
     37         calculateViewportWidth(m_frame),
     38         calculateViewportHeight(m_frame),
     39         result);
     40 }
     41 
     42 bool MediaValuesDynamic::computeLength(double value, CSSPrimitiveValue::UnitType type, double& result) const
     43 {
     44     return MediaValues::computeLength(value,
     45         type,
     46         calculateDefaultFontSize(m_frame),
     47         calculateViewportWidth(m_frame),
     48         calculateViewportHeight(m_frame),
     49         result);
     50 }
     51 
     52 bool MediaValuesDynamic::isSafeToSendToAnotherThread() const
     53 {
     54     return false;
     55 }
     56 
     57 int MediaValuesDynamic::viewportWidth() const
     58 {
     59     return calculateViewportWidth(m_frame);
     60 }
     61 
     62 int MediaValuesDynamic::viewportHeight() const
     63 {
     64     return calculateViewportHeight(m_frame);
     65 }
     66 
     67 int MediaValuesDynamic::deviceWidth() const
     68 {
     69     return calculateDeviceWidth(m_frame);
     70 }
     71 
     72 int MediaValuesDynamic::deviceHeight() const
     73 {
     74     return calculateDeviceHeight(m_frame);
     75 }
     76 
     77 float MediaValuesDynamic::devicePixelRatio() const
     78 {
     79     return calculateDevicePixelRatio(m_frame);
     80 }
     81 
     82 int MediaValuesDynamic::colorBitsPerComponent() const
     83 {
     84     return calculateColorBitsPerComponent(m_frame);
     85 }
     86 
     87 int MediaValuesDynamic::monochromeBitsPerComponent() const
     88 {
     89     return calculateMonochromeBitsPerComponent(m_frame);
     90 }
     91 
     92 MediaValues::PointerDeviceType MediaValuesDynamic::pointer() const
     93 {
     94     return calculateLeastCapablePrimaryPointerDeviceType(m_frame);
     95 }
     96 
     97 bool MediaValuesDynamic::threeDEnabled() const
     98 {
     99     return calculateThreeDEnabled(m_frame);
    100 }
    101 
    102 bool MediaValuesDynamic::scanMediaType() const
    103 {
    104     return calculateScanMediaType(m_frame);
    105 }
    106 
    107 bool MediaValuesDynamic::screenMediaType() const
    108 {
    109     return calculateScreenMediaType(m_frame);
    110 }
    111 
    112 bool MediaValuesDynamic::printMediaType() const
    113 {
    114     return calculatePrintMediaType(m_frame);
    115 }
    116 
    117 bool MediaValuesDynamic::strictMode() const
    118 {
    119     return calculateStrictMode(m_frame);
    120 }
    121 
    122 Document* MediaValuesDynamic::document() const
    123 {
    124     return m_frame->document();
    125 }
    126 
    127 bool MediaValuesDynamic::hasValues() const
    128 {
    129     return m_frame;
    130 }
    131 
    132 } // namespace
    133