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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "config.h"
#include "core/css/MediaValuesCached.h"
#include "core/css/CSSPrimitiveValue.h"
#include "core/dom/Document.h"
#include "core/frame/LocalFrame.h"
#include "core/rendering/RenderObject.h"
namespace blink {
PassRefPtr<MediaValues> MediaValuesCached::create()
{
return adoptRef(new MediaValuesCached());
}
PassRefPtr<MediaValues> MediaValuesCached::create(MediaValuesCachedData& data)
{
return adoptRef(new MediaValuesCached(data));
}
PassRefPtr<MediaValues> MediaValuesCached::create(Document& document)
{
return MediaValuesCached::create(frameFrom(document));
}
PassRefPtr<MediaValues> MediaValuesCached::create(LocalFrame* frame)
{
// FIXME - Added an assert here so we can better understand when a frame is present without its view().
ASSERT(!frame || frame->view());
if (!frame || !frame->view())
return adoptRef(new MediaValuesCached());
ASSERT(frame->document() && frame->document()->renderView());
return adoptRef(new MediaValuesCached(frame));
}
MediaValuesCached::MediaValuesCached()
{
}
MediaValuesCached::MediaValuesCached(LocalFrame* frame)
{
ASSERT(isMainThread());
ASSERT(frame);
// In case that frame is missing (e.g. for images that their document does not have a frame)
// We simply leave the MediaValues object with the default MediaValuesCachedData values.
m_data.viewportWidth = calculateViewportWidth(frame);
m_data.viewportHeight = calculateViewportHeight(frame);
m_data.deviceWidth = calculateDeviceWidth(frame);
m_data.deviceHeight = calculateDeviceHeight(frame);
m_data.devicePixelRatio = calculateDevicePixelRatio(frame);
m_data.colorBitsPerComponent = calculateColorBitsPerComponent(frame);
m_data.monochromeBitsPerComponent = calculateMonochromeBitsPerComponent(frame);
m_data.primaryPointerType = calculatePrimaryPointerType(frame);
m_data.availablePointerTypes = calculateAvailablePointerTypes(frame);
m_data.primaryHoverType = calculatePrimaryHoverType(frame);
m_data.availableHoverTypes = calculateAvailableHoverTypes(frame);
m_data.defaultFontSize = calculateDefaultFontSize(frame);
m_data.threeDEnabled = calculateThreeDEnabled(frame);
m_data.strictMode = calculateStrictMode(frame);
const String mediaType = calculateMediaType(frame);
if (!mediaType.isEmpty())
m_data.mediaType = mediaType.isolatedCopy();
}
MediaValuesCached::MediaValuesCached(const MediaValuesCachedData& data)
: m_data(data)
{
}
PassRefPtr<MediaValues> MediaValuesCached::copy() const
{
return adoptRef(new MediaValuesCached(m_data));
}
bool MediaValuesCached::computeLength(double value, CSSPrimitiveValue::UnitType type, int& result) const
{
return MediaValues::computeLength(value, type, m_data.defaultFontSize, m_data.viewportWidth, m_data.viewportHeight, result);
}
bool MediaValuesCached::computeLength(double value, CSSPrimitiveValue::UnitType type, double& result) const
{
return MediaValues::computeLength(value, type, m_data.defaultFontSize, m_data.viewportWidth, m_data.viewportHeight, result);
}
bool MediaValuesCached::isSafeToSendToAnotherThread() const
{
return hasOneRef();
}
int MediaValuesCached::viewportWidth() const
{
return m_data.viewportWidth;
}
int MediaValuesCached::viewportHeight() const
{
return m_data.viewportHeight;
}
int MediaValuesCached::deviceWidth() const
{
return m_data.deviceWidth;
}
int MediaValuesCached::deviceHeight() const
{
return m_data.deviceHeight;
}
float MediaValuesCached::devicePixelRatio() const
{
return m_data.devicePixelRatio;
}
int MediaValuesCached::colorBitsPerComponent() const
{
return m_data.colorBitsPerComponent;
}
int MediaValuesCached::monochromeBitsPerComponent() const
{
return m_data.monochromeBitsPerComponent;
}
PointerType MediaValuesCached::primaryPointerType() const
{
return m_data.primaryPointerType;
}
int MediaValuesCached::availablePointerTypes() const
{
return m_data.availablePointerTypes;
}
HoverType MediaValuesCached::primaryHoverType() const
{
return m_data.primaryHoverType;
}
int MediaValuesCached::availableHoverTypes() const
{
return m_data.availableHoverTypes;
}
bool MediaValuesCached::threeDEnabled() const
{
return m_data.threeDEnabled;
}
bool MediaValuesCached::strictMode() const
{
return m_data.strictMode;
}
const String MediaValuesCached::mediaType() const
{
return m_data.mediaType;
}
Document* MediaValuesCached::document() const
{
return 0;
}
bool MediaValuesCached::hasValues() const
{
return true;
}
} // namespace
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