TextTrackCueGeneric.cpp [plain text]
#include "config.h"
#if ENABLE(VIDEO_TRACK)
#include "TextTrackCueGeneric.h"
#include "CSSPropertyNames.h"
#include "CSSValueKeywords.h"
#include "HTMLNames.h"
#include "HTMLSpanElement.h"
#include "InbandTextTrackPrivateClient.h"
#include "Logging.h"
#include "RenderObject.h"
#include "ScriptExecutionContext.h"
#include "TextTrackCue.h"
namespace WebCore {
class TextTrackCueGenericBoxElement final : public VTTCueBox {
public:
static PassRefPtr<TextTrackCueGenericBoxElement> create(Document& document, TextTrackCueGeneric& cue)
{
return adoptRef(new TextTrackCueGenericBoxElement(document, cue));
}
virtual void applyCSSProperties(const IntSize&) override;
private:
TextTrackCueGenericBoxElement(Document&, VTTCue&);
};
TextTrackCueGenericBoxElement::TextTrackCueGenericBoxElement(Document& document, VTTCue& cue)
: VTTCueBox(document, cue)
{
}
void TextTrackCueGenericBoxElement::applyCSSProperties(const IntSize& videoSize)
{
setInlineStyleProperty(CSSPropertyPosition, CSSValueAbsolute);
setInlineStyleProperty(CSSPropertyUnicodeBidi, CSSValueWebkitPlaintext);
TextTrackCueGeneric* cue = static_cast<TextTrackCueGeneric*>(getCue());
RefPtr<HTMLSpanElement> cueElement = cue->element();
float size = static_cast<float>(cue->getCSSSize());
if (cue->useDefaultPosition()) {
setInlineStyleProperty(CSSPropertyBottom, 0, CSSPrimitiveValue::CSS_PX);
setInlineStyleProperty(CSSPropertyMarginBottom, 1.0, CSSPrimitiveValue::CSS_PERCENTAGE);
} else {
setInlineStyleProperty(CSSPropertyLeft, static_cast<float>(cue->position()), CSSPrimitiveValue::CSS_PERCENTAGE);
setInlineStyleProperty(CSSPropertyTop, static_cast<float>(cue->line()), CSSPrimitiveValue::CSS_PERCENTAGE);
if (cue->getWritingDirection() == VTTCue::Horizontal)
setInlineStyleProperty(CSSPropertyWidth, size, CSSPrimitiveValue::CSS_PERCENTAGE);
else
setInlineStyleProperty(CSSPropertyHeight, size, CSSPrimitiveValue::CSS_PERCENTAGE);
}
if (cue->getWritingDirection() == VTTCue::Horizontal)
setInlineStyleProperty(CSSPropertyMinWidth, "-webkit-min-content");
else
setInlineStyleProperty(CSSPropertyMinHeight, "-webkit-min-content");
if (cue->foregroundColor().isValid())
cueElement->setInlineStyleProperty(CSSPropertyColor, cue->foregroundColor().serialized());
if (cue->highlightColor().isValid())
cueElement->setInlineStyleProperty(CSSPropertyBackgroundColor, cue->highlightColor().serialized());
if (cue->getWritingDirection() == VTTCue::Horizontal)
setInlineStyleProperty(CSSPropertyHeight, CSSValueAuto);
else
setInlineStyleProperty(CSSPropertyWidth, CSSValueAuto);
if (cue->baseFontSizeRelativeToVideoHeight())
cue->setFontSize(cue->baseFontSizeRelativeToVideoHeight(), videoSize, false);
if (cue->getAlignment() == VTTCue::Middle)
setInlineStyleProperty(CSSPropertyTextAlign, CSSValueCenter);
else if (cue->getAlignment() == VTTCue::End)
setInlineStyleProperty(CSSPropertyTextAlign, CSSValueEnd);
else
setInlineStyleProperty(CSSPropertyTextAlign, CSSValueStart);
if (cue->backgroundColor().isValid())
setInlineStyleProperty(CSSPropertyBackgroundColor, cue->backgroundColor().serialized());
setInlineStyleProperty(CSSPropertyWebkitWritingMode, cue->getCSSWritingMode(), false);
setInlineStyleProperty(CSSPropertyWhiteSpace, CSSValuePreWrap);
}
TextTrackCueGeneric::TextTrackCueGeneric(ScriptExecutionContext& context, double start, double end, const String& content)
: VTTCue(context, start, end, content)
, m_baseFontSizeRelativeToVideoHeight(0)
, m_fontSizeMultiplier(0)
, m_defaultPosition(true)
{
}
PassRefPtr<VTTCueBox> TextTrackCueGeneric::createDisplayTree()
{
return TextTrackCueGenericBoxElement::create(ownerDocument(), *this);
}
void TextTrackCueGeneric::setLine(double line, ExceptionCode& ec)
{
m_defaultPosition = false;
VTTCue::setLine(line, ec);
}
void TextTrackCueGeneric::setPosition(double position, ExceptionCode& ec)
{
m_defaultPosition = false;
VTTCue::setPosition(position, ec);
}
void TextTrackCueGeneric::setFontSize(int fontSize, const IntSize& videoSize, bool important)
{
if (!hasDisplayTree() || !fontSize)
return;
if (important || !baseFontSizeRelativeToVideoHeight()) {
VTTCue::setFontSize(fontSize, videoSize, important);
return;
}
double size = videoSize.height() * baseFontSizeRelativeToVideoHeight() / 100;
if (fontSizeMultiplier())
size *= fontSizeMultiplier() / 100;
displayTreeInternal()->setInlineStyleProperty(CSSPropertyFontSize, lround(size), CSSPrimitiveValue::CSS_PX);
LOG(Media, "TextTrackCueGeneric::setFontSize - setting cue font size to %li", lround(size));
}
bool TextTrackCueGeneric::cueContentsMatch(const TextTrackCue& cue) const
{
if (!VTTCue::cueContentsMatch(cue))
return false;
const TextTrackCueGeneric* other = static_cast<const TextTrackCueGeneric*>(&cue);
if (m_baseFontSizeRelativeToVideoHeight != other->baseFontSizeRelativeToVideoHeight())
return false;
if (m_fontSizeMultiplier != other->fontSizeMultiplier())
return false;
if (m_fontName != other->fontName())
return false;
if (m_foregroundColor != other->foregroundColor())
return false;
if (m_backgroundColor != other->backgroundColor())
return false;
return true;
}
bool TextTrackCueGeneric::isEqual(const TextTrackCue& cue, TextTrackCue::CueMatchRules match) const
{
if (!TextTrackCue::isEqual(cue, match))
return false;
if (cue.cueType() != TextTrackCue::Generic)
return false;
return cueContentsMatch(cue);
}
bool TextTrackCueGeneric::doesExtendCue(const TextTrackCue& cue) const
{
if (!cueContentsMatch(cue))
return false;
return VTTCue::doesExtendCue(cue);
}
bool TextTrackCueGeneric::isOrderedBefore(const TextTrackCue* that) const
{
if (VTTCue::isOrderedBefore(that))
return true;
if (that->cueType() == Generic && startTime() == that->startTime() && endTime() == that->endTime()) {
std::pair<double, double> thisPosition = getPositionCoordinates();
std::pair<double, double> thatPosition = toVTTCue(that)->getPositionCoordinates();
return thisPosition.second > thatPosition.second || (thisPosition.second == thatPosition.second && thisPosition.first < thatPosition.first);
}
return false;
}
bool TextTrackCueGeneric::isPositionedAbove(const TextTrackCue* that) const
{
if (that->cueType() == Generic && startTime() == that->startTime() && endTime() == that->endTime()) {
std::pair<double, double> thisPosition = getPositionCoordinates();
std::pair<double, double> thatPosition = toVTTCue(that)->getPositionCoordinates();
return thisPosition.second > thatPosition.second || (thisPosition.second == thatPosition.second && thisPosition.first < thatPosition.first);
}
if (that->cueType() == Generic)
return startTime() > that->startTime();
return VTTCue::isOrderedBefore(that);
}
}
#endif