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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 "core/css/MediaValuesDynamic.h"
#include "core/css/CSSHelper.h"
#include "core/css/CSSPrimitiveValue.h"
#include "core/css/CSSToLengthConversionData.h"
#include "core/css/MediaValuesCached.h"
#include "core/dom/Document.h"
#include "core/frame/LocalFrame.h"
#include "core/layout/api/LayoutViewItem.h"
namespace blink {
MediaValues* MediaValuesDynamic::create(Document& document) {
return MediaValuesDynamic::create(frameFrom(document));
}
MediaValues* MediaValuesDynamic::create(LocalFrame* frame) {
if (!frame || !frame->view() || !frame->document() ||
frame->document()->layoutViewItem().isNull())
return MediaValuesCached::create();
return new MediaValuesDynamic(frame);
}
MediaValuesDynamic::MediaValuesDynamic(LocalFrame* frame)
: m_frame(frame),
m_viewportDimensionsOverridden(false),
m_viewportWidthOverride(0),
m_viewportHeightOverride(0) {
ASSERT(m_frame);
}
MediaValuesDynamic::MediaValuesDynamic(LocalFrame* frame,
bool overriddenViewportDimensions,
double viewportWidth,
double viewportHeight)
: m_frame(frame),
m_viewportDimensionsOverridden(overriddenViewportDimensions),
m_viewportWidthOverride(viewportWidth),
m_viewportHeightOverride(viewportHeight) {
ASSERT(m_frame);
}
MediaValues* MediaValuesDynamic::copy() const {
return new MediaValuesDynamic(m_frame, m_viewportDimensionsOverridden,
m_viewportWidthOverride,
m_viewportHeightOverride);
}
bool MediaValuesDynamic::computeLength(double value,
CSSPrimitiveValue::UnitType type,
int& result) const {
return MediaValues::computeLength(value, type,
calculateDefaultFontSize(m_frame),
calculateViewportWidth(m_frame),
calculateViewportHeight(m_frame), result);
}
bool MediaValuesDynamic::computeLength(double value,
CSSPrimitiveValue::UnitType type,
double& result) const {
return MediaValues::computeLength(value, type,
calculateDefaultFontSize(m_frame),
calculateViewportWidth(m_frame),
calculateViewportHeight(m_frame), result);
}
double MediaValuesDynamic::viewportWidth() const {
if (m_viewportDimensionsOverridden)
return m_viewportWidthOverride;
return calculateViewportWidth(m_frame);
}
double MediaValuesDynamic::viewportHeight() const {
if (m_viewportDimensionsOverridden)
return m_viewportHeightOverride;
return calculateViewportHeight(m_frame);
}
int MediaValuesDynamic::deviceWidth() const {
return calculateDeviceWidth(m_frame);
}
int MediaValuesDynamic::deviceHeight() const {
return calculateDeviceHeight(m_frame);
}
float MediaValuesDynamic::devicePixelRatio() const {
return calculateDevicePixelRatio(m_frame);
}
int MediaValuesDynamic::colorBitsPerComponent() const {
return calculateColorBitsPerComponent(m_frame);
}
int MediaValuesDynamic::monochromeBitsPerComponent() const {
return calculateMonochromeBitsPerComponent(m_frame);
}
PointerType MediaValuesDynamic::primaryPointerType() const {
return calculatePrimaryPointerType(m_frame);
}
int MediaValuesDynamic::availablePointerTypes() const {
return calculateAvailablePointerTypes(m_frame);
}
HoverType MediaValuesDynamic::primaryHoverType() const {
return calculatePrimaryHoverType(m_frame);
}
int MediaValuesDynamic::availableHoverTypes() const {
return calculateAvailableHoverTypes(m_frame);
}
bool MediaValuesDynamic::threeDEnabled() const {
return calculateThreeDEnabled(m_frame);
}
const String MediaValuesDynamic::mediaType() const {
return calculateMediaType(m_frame);
}
WebDisplayMode MediaValuesDynamic::displayMode() const {
return calculateDisplayMode(m_frame);
}
bool MediaValuesDynamic::strictMode() const {
return calculateStrictMode(m_frame);
}
DisplayShape MediaValuesDynamic::displayShape() const {
return calculateDisplayShape(m_frame);
}
Document* MediaValuesDynamic::document() const {
return m_frame->document();
}
bool MediaValuesDynamic::hasValues() const {
return m_frame;
}
DEFINE_TRACE(MediaValuesDynamic) {
visitor->trace(m_frame);
MediaValues::trace(visitor);
}
void MediaValuesDynamic::overrideViewportDimensions(double width,
double height) {
m_viewportDimensionsOverridden = true;
m_viewportWidthOverride = width;
m_viewportHeightOverride = height;
}
} // namespace blink
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