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// Copyright 2015 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/animation/LengthPropertyFunctions.h"
#include "core/style/ComputedStyle.h"
namespace blink {
ValueRange LengthPropertyFunctions::getValueRange(CSSPropertyID property) {
switch (property) {
case CSSPropertyBorderBottomWidth:
case CSSPropertyBorderLeftWidth:
case CSSPropertyBorderRightWidth:
case CSSPropertyBorderTopWidth:
case CSSPropertyFlexBasis:
case CSSPropertyHeight:
case CSSPropertyLineHeight:
case CSSPropertyMaxHeight:
case CSSPropertyMaxWidth:
case CSSPropertyMinHeight:
case CSSPropertyMinWidth:
case CSSPropertyOutlineWidth:
case CSSPropertyPaddingBottom:
case CSSPropertyPaddingLeft:
case CSSPropertyPaddingRight:
case CSSPropertyPaddingTop:
case CSSPropertyPerspective:
case CSSPropertyR:
case CSSPropertyRx:
case CSSPropertyRy:
case CSSPropertyShapeMargin:
case CSSPropertyStrokeWidth:
case CSSPropertyWebkitBorderHorizontalSpacing:
case CSSPropertyWebkitBorderVerticalSpacing:
case CSSPropertyColumnGap:
case CSSPropertyColumnWidth:
case CSSPropertyWidth:
return ValueRangeNonNegative;
default:
return ValueRangeAll;
}
}
bool LengthPropertyFunctions::isZoomedLength(CSSPropertyID property) {
return property != CSSPropertyStrokeWidth;
}
bool LengthPropertyFunctions::getPixelsForKeyword(CSSPropertyID property,
CSSValueID valueID,
double& result) {
switch (property) {
case CSSPropertyBaselineShift:
if (valueID == CSSValueBaseline) {
result = 0;
return true;
}
return false;
case CSSPropertyBorderBottomWidth:
case CSSPropertyBorderLeftWidth:
case CSSPropertyBorderRightWidth:
case CSSPropertyBorderTopWidth:
case CSSPropertyColumnRuleWidth:
case CSSPropertyOutlineWidth:
if (valueID == CSSValueThin) {
result = 1;
return true;
}
if (valueID == CSSValueMedium) {
result = 3;
return true;
}
if (valueID == CSSValueThick) {
result = 5;
return true;
}
return false;
case CSSPropertyLetterSpacing:
case CSSPropertyWordSpacing:
if (valueID == CSSValueNormal) {
result = 0;
return true;
}
return false;
default:
return false;
}
}
static Length lengthFromUnsigned(unsigned short value) {
return Length(static_cast<float>(value), Fixed);
}
bool LengthPropertyFunctions::getInitialLength(CSSPropertyID property,
Length& result) {
switch (property) {
// The computed value of "initial" for the following properties is 0px if
// the associated *-style property resolves to "none" or "hidden".
// - border-width:
// https://drafts.csswg.org/css-backgrounds-3/#the-border-width
// - outline-width: https://drafts.csswg.org/css-ui-3/#outline-width
// - column-rule-width: https://drafts.csswg.org/css-multicol-1/#crw
// We ignore this value adjustment for animations and use the wrong value
// for hidden widths to avoid having to restart our animations based on the
// computed *-style values. This is acceptable since animations running on
// hidden widths are unobservable to the user, even via getComputedStyle().
case CSSPropertyBorderBottomWidth:
case CSSPropertyBorderLeftWidth:
case CSSPropertyBorderRightWidth:
case CSSPropertyBorderTopWidth:
result = lengthFromUnsigned(ComputedStyle::initialBorderWidth());
return true;
case CSSPropertyOutlineWidth:
result = lengthFromUnsigned(ComputedStyle::initialOutlineWidth());
return true;
case CSSPropertyColumnRuleWidth:
result = lengthFromUnsigned(ComputedStyle::initialColumnRuleWidth());
return true;
default:
return getLength(property, ComputedStyle::initialStyle(), result);
}
}
bool LengthPropertyFunctions::getLength(CSSPropertyID property,
const ComputedStyle& style,
Length& result) {
switch (property) {
case CSSPropertyBottom:
result = style.bottom();
return true;
case CSSPropertyCx:
result = style.svgStyle().cx();
return true;
case CSSPropertyCy:
result = style.svgStyle().cy();
return true;
case CSSPropertyFlexBasis:
result = style.flexBasis();
return true;
case CSSPropertyHeight:
result = style.height();
return true;
case CSSPropertyLeft:
result = style.left();
return true;
case CSSPropertyMarginBottom:
result = style.marginBottom();
return true;
case CSSPropertyMarginLeft:
result = style.marginLeft();
return true;
case CSSPropertyMarginRight:
result = style.marginRight();
return true;
case CSSPropertyMarginTop:
result = style.marginTop();
return true;
case CSSPropertyMaxHeight:
result = style.maxHeight();
return true;
case CSSPropertyMaxWidth:
result = style.maxWidth();
return true;
case CSSPropertyMinHeight:
result = style.minHeight();
return true;
case CSSPropertyMinWidth:
result = style.minWidth();
return true;
case CSSPropertyOffsetDistance:
result = style.offsetDistance();
return true;
case CSSPropertyPaddingBottom:
result = style.paddingBottom();
return true;
case CSSPropertyPaddingLeft:
result = style.paddingLeft();
return true;
case CSSPropertyPaddingRight:
result = style.paddingRight();
return true;
case CSSPropertyPaddingTop:
result = style.paddingTop();
return true;
case CSSPropertyR:
result = style.svgStyle().r();
return true;
case CSSPropertyRight:
result = style.right();
return true;
case CSSPropertyRx:
result = style.svgStyle().rx();
return true;
case CSSPropertyRy:
result = style.svgStyle().ry();
return true;
case CSSPropertyShapeMargin:
result = style.shapeMargin();
return true;
case CSSPropertyStrokeDashoffset:
result = style.strokeDashOffset();
return true;
case CSSPropertyTextIndent:
result = style.textIndent();
return true;
case CSSPropertyTop:
result = style.top();
return true;
case CSSPropertyWebkitPerspectiveOriginX:
result = style.perspectiveOriginX();
return true;
case CSSPropertyWebkitPerspectiveOriginY:
result = style.perspectiveOriginY();
return true;
case CSSPropertyWebkitTransformOriginX:
result = style.transformOriginX();
return true;
case CSSPropertyWebkitTransformOriginY:
result = style.transformOriginY();
return true;
case CSSPropertyWidth:
result = style.width();
return true;
case CSSPropertyX:
result = style.svgStyle().x();
return true;
case CSSPropertyY:
result = style.svgStyle().y();
return true;
case CSSPropertyBorderBottomWidth:
result = Length(style.borderBottomWidth(), Fixed);
return true;
case CSSPropertyBorderLeftWidth:
result = Length(style.borderLeftWidth(), Fixed);
return true;
case CSSPropertyBorderRightWidth:
result = Length(style.borderRightWidth(), Fixed);
return true;
case CSSPropertyBorderTopWidth:
result = Length(style.borderTopWidth(), Fixed);
return true;
case CSSPropertyLetterSpacing:
result = Length(style.letterSpacing(), Fixed);
return true;
case CSSPropertyOutlineOffset:
result = Length(style.outlineOffset(), Fixed);
return true;
case CSSPropertyOutlineWidth:
result = Length(style.outlineWidth(), Fixed);
return true;
case CSSPropertyWebkitBorderHorizontalSpacing:
result = Length(style.horizontalBorderSpacing(), Fixed);
return true;
case CSSPropertyWebkitBorderVerticalSpacing:
result = Length(style.verticalBorderSpacing(), Fixed);
return true;
case CSSPropertyColumnGap:
result = Length(style.columnGap(), Fixed);
return true;
case CSSPropertyColumnRuleWidth:
result = Length(style.columnRuleWidth(), Fixed);
return true;
case CSSPropertyWebkitTransformOriginZ:
result = Length(style.transformOriginZ(), Fixed);
return true;
case CSSPropertyWordSpacing:
result = Length(style.wordSpacing(), Fixed);
return true;
case CSSPropertyBaselineShift:
if (style.baselineShift() != BS_LENGTH)
return false;
result = style.baselineShiftValue();
return true;
case CSSPropertyLineHeight:
// Percent Lengths are used to represent numbers on line-height.
if (style.specifiedLineHeight().isPercentOrCalc())
return false;
result = style.specifiedLineHeight();
return true;
case CSSPropertyPerspective:
if (!style.hasPerspective())
return false;
result = Length(style.perspective(), Fixed);
return true;
case CSSPropertyStrokeWidth:
DCHECK(!isZoomedLength(CSSPropertyStrokeWidth));
result = style.strokeWidth().length();
return true;
case CSSPropertyVerticalAlign:
if (style.verticalAlign() != EVerticalAlign::Length)
return false;
result = style.getVerticalAlignLength();
return true;
case CSSPropertyColumnWidth:
if (style.hasAutoColumnWidth())
return false;
result = Length(style.columnWidth(), Fixed);
return true;
default:
return false;
}
}
bool LengthPropertyFunctions::setLength(CSSPropertyID property,
ComputedStyle& style,
const Length& value) {
switch (property) {
// Setters that take a Length value.
case CSSPropertyBaselineShift:
style.setBaselineShiftValue(value);
return true;
case CSSPropertyBottom:
style.setBottom(value);
return true;
case CSSPropertyCx:
style.setCx(value);
return true;
case CSSPropertyCy:
style.setCy(value);
return true;
case CSSPropertyFlexBasis:
style.setFlexBasis(value);
return true;
case CSSPropertyHeight:
style.setHeight(value);
return true;
case CSSPropertyLeft:
style.setLeft(value);
return true;
case CSSPropertyMarginBottom:
style.setMarginBottom(value);
return true;
case CSSPropertyMarginLeft:
style.setMarginLeft(value);
return true;
case CSSPropertyMarginRight:
style.setMarginRight(value);
return true;
case CSSPropertyMarginTop:
style.setMarginTop(value);
return true;
case CSSPropertyMaxHeight:
style.setMaxHeight(value);
return true;
case CSSPropertyMaxWidth:
style.setMaxWidth(value);
return true;
case CSSPropertyMinHeight:
style.setMinHeight(value);
return true;
case CSSPropertyMinWidth:
style.setMinWidth(value);
return true;
case CSSPropertyOffsetDistance:
style.setOffsetDistance(value);
return true;
case CSSPropertyPaddingBottom:
style.setPaddingBottom(value);
return true;
case CSSPropertyPaddingLeft:
style.setPaddingLeft(value);
return true;
case CSSPropertyPaddingRight:
style.setPaddingRight(value);
return true;
case CSSPropertyPaddingTop:
style.setPaddingTop(value);
return true;
case CSSPropertyR:
style.setR(value);
return true;
case CSSPropertyRx:
style.setRx(value);
return true;
case CSSPropertyRy:
style.setRy(value);
return true;
case CSSPropertyRight:
style.setRight(value);
return true;
case CSSPropertyShapeMargin:
style.setShapeMargin(value);
return true;
case CSSPropertyStrokeDashoffset:
style.setStrokeDashOffset(value);
return true;
case CSSPropertyTop:
style.setTop(value);
return true;
case CSSPropertyWidth:
style.setWidth(value);
return true;
case CSSPropertyWebkitPerspectiveOriginX:
style.setPerspectiveOriginX(value);
return true;
case CSSPropertyWebkitPerspectiveOriginY:
style.setPerspectiveOriginY(value);
return true;
case CSSPropertyWebkitTransformOriginX:
style.setTransformOriginX(value);
return true;
case CSSPropertyWebkitTransformOriginY:
style.setTransformOriginY(value);
return true;
case CSSPropertyX:
style.setX(value);
return true;
case CSSPropertyY:
style.setY(value);
return true;
case CSSPropertyLineHeight:
// Percent Lengths are used to represent numbers on line-height.
if (value.isPercentOrCalc())
return false;
style.setLineHeight(value);
return true;
// TODO(alancutter): Support setters that take a numeric value (need to
// resolve percentages).
case CSSPropertyBorderBottomWidth:
case CSSPropertyBorderLeftWidth:
case CSSPropertyBorderRightWidth:
case CSSPropertyBorderTopWidth:
case CSSPropertyLetterSpacing:
case CSSPropertyOutlineOffset:
case CSSPropertyOutlineWidth:
case CSSPropertyPerspective:
case CSSPropertyStrokeWidth:
case CSSPropertyVerticalAlign:
case CSSPropertyWebkitBorderHorizontalSpacing:
case CSSPropertyWebkitBorderVerticalSpacing:
case CSSPropertyColumnGap:
case CSSPropertyColumnRuleWidth:
case CSSPropertyColumnWidth:
case CSSPropertyWebkitTransformOriginZ:
case CSSPropertyWordSpacing:
return false;
default:
return false;
}
}
} // namespace blink
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