static PassRefPtrWillBeRawPtr<AnimatableValue> createFromLength(const Length& length, const RenderStyle& style)
{
switch (length.type()) {
case Fixed:
case Percent:
case Calculated:
return AnimatableLength::create(length, style.effectiveZoom());
case Auto:
case Intrinsic:
case MinIntrinsic:
case MinContent:
case MaxContent:
case FillAvailable:
case FitContent:
return AnimatableUnknown::create(CSSPrimitiveValue::create(length, 1));
case MaxSizeNone:
return AnimatableUnknown::create(CSSValueNone);
case ExtendToZoom: // Does not apply to elements.
case DeviceWidth:
case DeviceHeight:
ASSERT_NOT_REACHED();
return nullptr;
}
ASSERT_NOT_REACHED();
return nullptr;
}
AffineTransform SVGGraphicsElement::animatedLocalTransform() const
{
AffineTransform matrix;
RenderStyle* style = renderer() ? &renderer()->style() : nullptr;
// If CSS property was set, use that, otherwise fallback to attribute (if set).
if (style && style->hasTransform()) {
// Note: objectBoundingBox is an emptyRect for elements like pattern or clipPath.
// See the "Object bounding box units" section of http://dev.w3.org/csswg/css3-transforms/
TransformationMatrix transform;
style->applyTransform(transform, renderer()->objectBoundingBox());
// Flatten any 3D transform.
matrix = transform.toAffineTransform();
// CSS bakes the zoom factor into lengths, including translation components.
// In order to align CSS & SVG transforms, we need to invert this operation.
float zoom = style->effectiveZoom();
if (zoom != 1) {
matrix.setE(matrix.e() / zoom);
matrix.setF(matrix.f() / zoom);
}
} else
transform().concatenate(matrix);
if (m_supplementalTransform)
return *m_supplementalTransform * matrix;
return matrix;
}
AffineTransform SVGGraphicsElement::calculateAnimatedLocalTransform() const
{
AffineTransform matrix;
RenderStyle* style = renderer() ? renderer()->style() : 0;
// If CSS property was set, use that, otherwise fallback to attribute (if set).
if (style && style->hasTransform()) {
TransformationMatrix transform;
float zoom = style->effectiveZoom();
// SVGTextElements need special handling for the text positioning code.
if (isSVGTextElement(this)) {
// Do not take into account SVG's zoom rules, transform-origin, or percentage values.
style->applyTransform(transform, IntSize(0, 0), RenderStyle::ExcludeTransformOrigin);
} else {
// CSS transforms operate with pre-scaled lengths. To make this work with SVG
// (which applies the zoom factor globally, at the root level) we
//
// * pre-scale the bounding box (to bring it into the same space as the other CSS values)
// * invert the zoom factor (to effectively compute the CSS transform under a 1.0 zoom)
//
// Note: objectBoundingBox is an emptyRect for elements like pattern or clipPath.
// See the "Object bounding box units" section of http://dev.w3.org/csswg/css3-transforms/
if (zoom != 1) {
FloatRect scaledBBox = renderer()->objectBoundingBox();
scaledBBox.scale(zoom);
transform.scale(1 / zoom);
style->applyTransform(transform, scaledBBox);
transform.scale(zoom);
} else {
style->applyTransform(transform, renderer()->objectBoundingBox());
}
}
// Flatten any 3D transform.
matrix = transform.toAffineTransform();
} else {
m_transform->currentValue()->concatenate(matrix);
}
if (hasSVGRareData())
return *svgRareData()->animateMotionTransform() * matrix;
return matrix;
}
void RenderMediaControls::adjustMediaSliderThumbSize(RenderStyle& style)
{
int part;
switch (style.appearance()) {
case MediaSliderThumbPart:
part = MediaSliderThumb;
break;
case MediaVolumeSliderThumbPart:
part = MediaVolumeSliderThumb;
break;
case MediaFullScreenVolumeSliderThumbPart:
part = MediaFullScreenVolumeSliderThumb;
break;
default:
return;
}
CGSize size;
wkMeasureMediaUIPart(part, 0, &size);
float zoomLevel = style.effectiveZoom();
style.setWidth(Length(static_cast<int>(size.width * zoomLevel), Fixed));
style.setHeight(Length(static_cast<int>(size.height * zoomLevel), Fixed));
}
static bool paintMediaVolumeSlider(RenderObject* object, const PaintInfo& paintInfo, const IntRect& rect)
{
HTMLMediaElement* mediaElement = toParentMediaElement(object);
if (!mediaElement)
return false;
GraphicsContext* context = paintInfo.context;
RenderStyle* style = object->style();
paintRoundedSliderBackground(rect, style, context);
// Calculate volume position for white background rectangle.
float volume = mediaElement->volume();
if (std::isnan(volume) || volume < 0)
return true;
if (volume > 1)
volume = 1;
if (!hasSource(mediaElement) || !mediaElement->hasAudio() || mediaElement->muted())
volume = 0;
// Calculate the position relative to the center of the thumb.
float fillWidth = 0;
if (volume > 0) {
float thumbCenter = mediaVolumeSliderThumbWidth / 2;
float zoomLevel = style->effectiveZoom();
float positionWidth = volume * (rect.width() - (zoomLevel * thumbCenter));
fillWidth = positionWidth + (zoomLevel * thumbCenter / 2);
}
Color startColor = Color(195, 195, 195);
Color endColor = Color(217, 217, 217);
paintSliderRangeHighlight(rect, style, context, 0.0, fillWidth, startColor, endColor);
return true;
}
void RenderTheme::adjustStyle(StyleResolver& styleResolver, RenderStyle& style, Element* element, bool UAHasAppearance, const BorderData& border, const FillLayer& background, const Color& backgroundColor)
{
// Force inline and table display styles to be inline-block (except for table- which is block)
ControlPart part = style.appearance();
if (style.display() == INLINE || style.display() == INLINE_TABLE || style.display() == TABLE_ROW_GROUP
|| style.display() == TABLE_HEADER_GROUP || style.display() == TABLE_FOOTER_GROUP
|| style.display() == TABLE_ROW || style.display() == TABLE_COLUMN_GROUP || style.display() == TABLE_COLUMN
|| style.display() == TABLE_CELL || style.display() == TABLE_CAPTION)
style.setDisplay(INLINE_BLOCK);
else if (style.display() == COMPACT || style.display() == LIST_ITEM || style.display() == TABLE)
style.setDisplay(BLOCK);
if (UAHasAppearance && isControlStyled(style, border, background, backgroundColor)) {
if (part == MenulistPart) {
style.setAppearance(MenulistButtonPart);
part = MenulistButtonPart;
} else
style.setAppearance(NoControlPart);
}
if (!style.hasAppearance())
return;
// Never support box-shadow on native controls.
style.setBoxShadow(nullptr);
#if USE(NEW_THEME)
switch (part) {
case CheckboxPart:
case InnerSpinButtonPart:
case RadioPart:
case PushButtonPart:
case SquareButtonPart:
case DefaultButtonPart:
case ButtonPart: {
// Border
LengthBox borderBox(style.borderTopWidth(), style.borderRightWidth(), style.borderBottomWidth(), style.borderLeftWidth());
borderBox = m_theme->controlBorder(part, style.fontCascade(), borderBox, style.effectiveZoom());
if (borderBox.top().value() != static_cast<int>(style.borderTopWidth())) {
if (borderBox.top().value())
style.setBorderTopWidth(borderBox.top().value());
else
style.resetBorderTop();
}
if (borderBox.right().value() != static_cast<int>(style.borderRightWidth())) {
if (borderBox.right().value())
style.setBorderRightWidth(borderBox.right().value());
else
style.resetBorderRight();
}
if (borderBox.bottom().value() != static_cast<int>(style.borderBottomWidth())) {
style.setBorderBottomWidth(borderBox.bottom().value());
if (borderBox.bottom().value())
style.setBorderBottomWidth(borderBox.bottom().value());
else
style.resetBorderBottom();
}
if (borderBox.left().value() != static_cast<int>(style.borderLeftWidth())) {
style.setBorderLeftWidth(borderBox.left().value());
if (borderBox.left().value())
style.setBorderLeftWidth(borderBox.left().value());
else
style.resetBorderLeft();
}
// Padding
LengthBox paddingBox = m_theme->controlPadding(part, style.fontCascade(), style.paddingBox(), style.effectiveZoom());
if (paddingBox != style.paddingBox())
style.setPaddingBox(paddingBox);
// Whitespace
if (m_theme->controlRequiresPreWhiteSpace(part))
style.setWhiteSpace(PRE);
// Width / Height
// The width and height here are affected by the zoom.
// FIXME: Check is flawed, since it doesn't take min-width/max-width into account.
LengthSize controlSize = m_theme->controlSize(part, style.fontCascade(), LengthSize(style.width(), style.height()), style.effectiveZoom());
if (controlSize.width() != style.width())
style.setWidth(controlSize.width());
if (controlSize.height() != style.height())
style.setHeight(controlSize.height());
// Min-Width / Min-Height
LengthSize minControlSize = m_theme->minimumControlSize(part, style.fontCascade(), style.effectiveZoom());
if (minControlSize.width() != style.minWidth())
style.setMinWidth(minControlSize.width());
if (minControlSize.height() != style.minHeight())
style.setMinHeight(minControlSize.height());
// Font
if (auto themeFont = m_theme->controlFont(part, style.fontCascade(), style.effectiveZoom())) {
// If overriding the specified font with the theme font, also override the line height with the standard line height.
style.setLineHeight(RenderStyle::initialLineHeight());
if (style.setFontDescription(themeFont.value()))
style.fontCascade().update(nullptr);
}
// Special style that tells enabled default buttons in active windows to use the ActiveButtonText color.
// The active window part of the test has to be done at paint time since it's not triggered by a style change.
style.setInsideDefaultButton(part == DefaultButtonPart && element && !element->isDisabledFormControl());
break;
}
default:
break;
}
#endif
// Call the appropriate style adjustment method based off the appearance value.
switch (style.appearance()) {
#if !USE(NEW_THEME)
case CheckboxPart:
return adjustCheckboxStyle(styleResolver, style, element);
case RadioPart:
return adjustRadioStyle(styleResolver, style, element);
case PushButtonPart:
case SquareButtonPart:
case DefaultButtonPart:
case ButtonPart:
return adjustButtonStyle(styleResolver, style, element);
case InnerSpinButtonPart:
return adjustInnerSpinButtonStyle(styleResolver, style, element);
#endif
case TextFieldPart:
return adjustTextFieldStyle(styleResolver, style, element);
case TextAreaPart:
return adjustTextAreaStyle(styleResolver, style, element);
case MenulistPart:
return adjustMenuListStyle(styleResolver, style, element);
case MenulistButtonPart:
return adjustMenuListButtonStyle(styleResolver, style, element);
case MediaPlayButtonPart:
case MediaCurrentTimePart:
case MediaTimeRemainingPart:
case MediaEnterFullscreenButtonPart:
case MediaExitFullscreenButtonPart:
case MediaMuteButtonPart:
case MediaVolumeSliderContainerPart:
return adjustMediaControlStyle(styleResolver, style, element);
case MediaSliderPart:
case MediaVolumeSliderPart:
case MediaFullScreenVolumeSliderPart:
case SliderHorizontalPart:
case SliderVerticalPart:
return adjustSliderTrackStyle(styleResolver, style, element);
case SliderThumbHorizontalPart:
case SliderThumbVerticalPart:
return adjustSliderThumbStyle(styleResolver, style, element);
case SearchFieldPart:
return adjustSearchFieldStyle(styleResolver, style, element);
case SearchFieldCancelButtonPart:
return adjustSearchFieldCancelButtonStyle(styleResolver, style, element);
case SearchFieldDecorationPart:
return adjustSearchFieldDecorationPartStyle(styleResolver, style, element);
case SearchFieldResultsDecorationPart:
return adjustSearchFieldResultsDecorationPartStyle(styleResolver, style, element);
case SearchFieldResultsButtonPart:
return adjustSearchFieldResultsButtonStyle(styleResolver, style, element);
case ProgressBarPart:
return adjustProgressBarStyle(styleResolver, style, element);
#if ENABLE(METER_ELEMENT)
case MeterPart:
case RelevancyLevelIndicatorPart:
case ContinuousCapacityLevelIndicatorPart:
case DiscreteCapacityLevelIndicatorPart:
case RatingLevelIndicatorPart:
return adjustMeterStyle(styleResolver, style, element);
#endif
#if ENABLE(SERVICE_CONTROLS)
case ImageControlsButtonPart:
break;
#endif
case CapsLockIndicatorPart:
return adjustCapsLockIndicatorStyle(styleResolver, style, element);
#if ENABLE(ATTACHMENT_ELEMENT)
case AttachmentPart:
return adjustAttachmentStyle(styleResolver, style, element);
#endif
default:
break;
}
}
PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSValuePool::createValue(const Length& value, const RenderStyle& style)
{
return CSSPrimitiveValue::create(value, style.effectiveZoom());
}
static PassRefPtr<AnimatableValue> createFromLength(const Length& length, const RenderStyle& style)
{
switch (length.type()) {
case Fixed:
return AnimatableLength::create(adjustFloatForAbsoluteZoom(length.value(), style), AnimatableLength::UnitTypePixels);
case Percent:
return AnimatableLength::create(length.value(), AnimatableLength::UnitTypePercentage);
case ViewportPercentageWidth:
return AnimatableLength::create(length.value(), AnimatableLength::UnitTypeViewportWidth);
case ViewportPercentageHeight:
return AnimatableLength::create(length.value(), AnimatableLength::UnitTypeViewportHeight);
case ViewportPercentageMin:
return AnimatableLength::create(length.value(), AnimatableLength::UnitTypeViewportMin);
case ViewportPercentageMax:
return AnimatableLength::create(length.value(), AnimatableLength::UnitTypeViewportMax);
case Calculated:
return AnimatableLength::create(CSSCalcValue::createExpressionNode(length.calculationValue()->expression(), style.effectiveZoom()));
case Auto:
case Intrinsic:
case MinIntrinsic:
case MinContent:
case MaxContent:
case FillAvailable:
case FitContent:
return AnimatableUnknown::create(CSSPrimitiveValue::create(length));
case Undefined:
return AnimatableUnknown::create(CSSValueNone);
case ExtendToZoom: // Does not apply to elements.
case Relative: // Does not get used by interpolable properties.
ASSERT_NOT_REACHED();
return 0;
}
ASSERT_NOT_REACHED();
return 0;
}
void SVGTextLayoutEngine::layoutTextOnLineOrPath(SVGInlineTextBox* textBox, const RenderSVGInlineText& text, const RenderStyle& style)
{
if (m_inPathLayout && !m_textPathCalculator)
return;
SVGElement* lengthContext = toSVGElement(text.parent()->node());
RenderObject* textParent = text.parent();
bool definesTextLength = textParent ? parentDefinesTextLength(textParent) : false;
const SVGRenderStyle& svgStyle = style.svgStyle();
m_visualMetricsListOffset = 0;
m_visualCharacterOffset = 0;
const Vector<SVGTextMetrics>& visualMetricsValues = text.layoutAttributes()->textMetricsValues();
ASSERT(!visualMetricsValues.isEmpty());
const Font& font = style.font();
SVGTextLayoutEngineSpacing spacingLayout(font, style.effectiveZoom());
SVGTextLayoutEngineBaseline baselineLayout(font);
bool didStartTextFragment = false;
bool applySpacingToNextCharacter = false;
float lastAngle = 0;
float baselineShift = baselineLayout.calculateBaselineShift(svgStyle, lengthContext);
baselineShift -= baselineLayout.calculateAlignmentBaselineShift(m_isVerticalText, &text);
// Main layout algorithm.
while (true) {
// Find the start of the current text box in this list, respecting ligatures.
SVGTextMetrics visualMetrics(SVGTextMetrics::SkippedSpaceMetrics);
if (!currentVisualCharacterMetrics(textBox, visualMetricsValues, visualMetrics))
break;
if (visualMetrics.isEmpty()) {
advanceToNextVisualCharacter(visualMetrics);
continue;
}
SVGTextLayoutAttributes* logicalAttributes = 0;
if (!currentLogicalCharacterAttributes(logicalAttributes))
break;
ASSERT(logicalAttributes);
SVGTextMetrics logicalMetrics(SVGTextMetrics::SkippedSpaceMetrics);
if (!currentLogicalCharacterMetrics(logicalAttributes, logicalMetrics))
break;
SVGCharacterDataMap& characterDataMap = logicalAttributes->characterDataMap();
SVGCharacterData data;
SVGCharacterDataMap::iterator it = characterDataMap.find(m_logicalCharacterOffset + 1);
if (it != characterDataMap.end())
data = it->value;
float x = data.x;
float y = data.y;
// When we've advanced to the box start offset, determine using the original x/y values,
// whether this character starts a new text chunk, before doing any further processing.
if (m_visualCharacterOffset == textBox->start())
textBox->setStartsNewTextChunk(logicalAttributes->context()->characterStartsNewTextChunk(m_logicalCharacterOffset));
float angle = data.rotate == SVGTextLayoutAttributes::emptyValue() ? 0 : data.rotate;
// Calculate glyph orientation angle.
UChar currentCharacter = text.characterAt(m_visualCharacterOffset);
float orientationAngle = baselineLayout.calculateGlyphOrientationAngle(m_isVerticalText, svgStyle, currentCharacter);
// Calculate glyph advance & x/y orientation shifts.
float xOrientationShift = 0;
float yOrientationShift = 0;
float glyphAdvance = baselineLayout.calculateGlyphAdvanceAndOrientation(m_isVerticalText, visualMetrics, orientationAngle, xOrientationShift, yOrientationShift);
// Assign current text position to x/y values, if needed.
updateCharacterPositionIfNeeded(x, y);
// Apply dx/dy value adjustments to current text position, if needed.
updateRelativePositionAdjustmentsIfNeeded(data.dx, data.dy);
// Calculate CSS 'letter-spacing' and 'word-spacing' for next character, if needed.
float spacing = spacingLayout.calculateCSSSpacing(currentCharacter);
float textPathOffset = 0;
if (m_inPathLayout) {
float scaledGlyphAdvance = glyphAdvance * m_textPathScaling;
if (m_isVerticalText) {
// If there's an absolute y position available, it marks the beginning of a new position along the path.
if (y != SVGTextLayoutAttributes::emptyValue())
m_textPathCurrentOffset = y + m_textPathStartOffset;
m_textPathCurrentOffset += m_dy;
m_dy = 0;
// Apply dx/dy correction and setup translations that move to the glyph midpoint.
xOrientationShift += m_dx + baselineShift;
yOrientationShift -= scaledGlyphAdvance / 2;
} else {
// If there's an absolute x position available, it marks the beginning of a new position along the path.
if (x != SVGTextLayoutAttributes::emptyValue())
m_textPathCurrentOffset = x + m_textPathStartOffset;
m_textPathCurrentOffset += m_dx;
m_dx = 0;
// Apply dx/dy correction and setup translations that move to the glyph midpoint.
xOrientationShift -= scaledGlyphAdvance / 2;
yOrientationShift += m_dy - baselineShift;
}
// Calculate current offset along path.
textPathOffset = m_textPathCurrentOffset + scaledGlyphAdvance / 2;
// Move to next character.
m_textPathCurrentOffset += scaledGlyphAdvance + m_textPathSpacing + spacing * m_textPathScaling;
// Skip character, if we're before the path.
if (textPathOffset < 0) {
advanceToNextLogicalCharacter(logicalMetrics);
advanceToNextVisualCharacter(visualMetrics);
continue;
}
// Stop processing, if the next character lies behind the path.
if (textPathOffset > m_textPathLength)
break;
FloatPoint point;
bool ok = m_textPathCalculator->pointAndNormalAtLength(textPathOffset, point, angle);
ASSERT_UNUSED(ok, ok);
x = point.x();
y = point.y();
// For vertical text on path, the actual angle has to be rotated 90 degrees anti-clockwise, not the orientation angle!
if (m_isVerticalText)
angle -= 90;
} else {
// Apply all previously calculated shift values.
if (m_isVerticalText)
x += baselineShift;
else
y -= baselineShift;
x += m_dx;
y += m_dy;
}
// Determine whether we have to start a new fragment.
bool shouldStartNewFragment = m_dx || m_dy || m_isVerticalText || m_inPathLayout || angle || angle != lastAngle
|| orientationAngle || applySpacingToNextCharacter || definesTextLength;
// If we already started a fragment, close it now.
if (didStartTextFragment && shouldStartNewFragment) {
applySpacingToNextCharacter = false;
recordTextFragment(textBox, visualMetricsValues);
}
// Eventually start a new fragment, if not yet done.
if (!didStartTextFragment || shouldStartNewFragment) {
ASSERT(!m_currentTextFragment.characterOffset);
ASSERT(!m_currentTextFragment.length);
didStartTextFragment = true;
m_currentTextFragment.characterOffset = m_visualCharacterOffset;
m_currentTextFragment.metricsListOffset = m_visualMetricsListOffset;
m_currentTextFragment.x = x;
m_currentTextFragment.y = y;
// Build fragment transformation.
if (angle)
m_currentTextFragment.transform.rotate(angle);
if (xOrientationShift || yOrientationShift)
m_currentTextFragment.transform.translate(xOrientationShift, yOrientationShift);
if (orientationAngle)
m_currentTextFragment.transform.rotate(orientationAngle);
m_currentTextFragment.isTextOnPath = m_inPathLayout && m_textPathScaling != 1;
if (m_currentTextFragment.isTextOnPath) {
if (m_isVerticalText)
m_currentTextFragment.lengthAdjustTransform.scaleNonUniform(1, m_textPathScaling);
else
m_currentTextFragment.lengthAdjustTransform.scaleNonUniform(m_textPathScaling, 1);
}
}
// Update current text position, after processing of the current character finished.
if (m_inPathLayout)
updateCurrentTextPosition(x, y, glyphAdvance);
else {
// Apply CSS 'kerning', 'letter-spacing' and 'word-spacing' to next character, if needed.
if (spacing)
applySpacingToNextCharacter = true;
float xNew = x - m_dx;
float yNew = y - m_dy;
if (m_isVerticalText)
xNew -= baselineShift;
else
yNew += baselineShift;
updateCurrentTextPosition(xNew, yNew, glyphAdvance + spacing);
}
advanceToNextLogicalCharacter(logicalMetrics);
advanceToNextVisualCharacter(visualMetrics);
lastAngle = angle;
}
if (!didStartTextFragment)
return;
// Close last open fragment, if needed.
recordTextFragment(textBox, visualMetricsValues);
}
