Module io.sf.carte.css4j

Package io.sf.carte.doc.style.css.om

Class ComputedCSSStyle

java.lang.Object

io.sf.carte.doc.style.css.om.AbstractCSSStyleDeclaration

io.sf.carte.doc.style.css.om.BaseCSSStyleDeclaration

io.sf.carte.doc.style.css.om.ComputedCSSStyle

All Implemented Interfaces:

CSSComputedProperties, CSSStyleDeclaration, NodeStyleDeclaration, Serializable, Cloneable, CSS2Properties

Direct Known Subclasses:

DOMComputedStyle

public abstract class ComputedCSSStyle
extends BaseCSSStyleDeclaration
implements CSSComputedProperties

Style declaration that computes CSS properties.

See section 6.1 of the Document Object Model CSS spec.

See Also:

• Serialized Form

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ComputedCSSStyle(BaseDocumentCSSStyleSheet docSheet)
protected	ComputedCSSStyle(ComputedCSSStyle copiedObject)

Method Summary

Modifier and Type	Method	Description
abstract ComputedCSSStyle	clone()
String[]	getBackgroundImages()	Gets the computed value(s) for the 'background-image' property.
BoxValues	getBoxValues(short unitType)	Get the box values from a simple box model.
StyleValue	getCascadedValue(String property)
float	getComputedFontSize()	Gets the computed value of the font-size property.
float	getComputedLineHeight()	Gets the computed line height with the default 'normal' value of 1.16em.
float	getComputedLineHeight(float defval)	Gets the computed line height, in typographic points.
TypedValue	getCSSBackgroundColor()	Gets the primitive, computed value for the 'background-color' property.
TypedValue	getCSSColor()	Gets the primitive, computed value for the 'color' property.
String	getCssText()	Retrieves the parsable textual representation of the declaration block (excluding the surrounding curly braces).
StyleValue	getCSSValue(String property)	Gets the absolute, primitive "computed" value for the given property.
protected TypedValue	getCurrentColor()
protected String	getHref(CSSTypedValue cssVal, String baseHref)	Attempts to get the absolute Href from the string value of a (uri) property.
String	getMinifiedCssText()	Retrieves a minified textual representation of the declaration block (excluding the surrounding curly braces).
CSSElement	getOwnerNode()	The node that owns this declaration.
protected BaseDocumentCSSStyleSheet	getOwnerSheet()
abstract ComputedCSSStyle	getParentComputedStyle()	Gets the computed style for the parent element.
String	getPropertyValue(String propertyName)	Gets the text value of a CSS property if it has been explicitly set within this declaration block.
ComputedCSSStyle	getRevertStyle(Condition pseudoElt)
StyleDeclarationErrorHandler	getStyleDeclarationErrorHandler()	Get the error handler for this style declaration.
String	getText()	Gets the (whitespace-trimmed) text content of the node associated to this style.
String	getUsedFontFamily()	Gets the used value of the font-family property.
protected void	setOwnerNode(CSSElement node)
protected void	setPropertyCSSValue(String propertyName, StyleValue value, String hrefcontext)
void	writeCssText(SimpleWriter wri, StyleFormattingContext context)	Writes a textual representation of the declaration block (excluding the surrounding curly braces) to a SimpleWriter, and according to a StyleFormattingContext.

Methods inherited from class io.sf.carte.doc.style.css.om.BaseCSSStyleDeclaration

addOverrideProperty, addProperty, addStyle, appendLonghandMinifiedCssText, appendShorthandMinifiedCssText, compatLonghand, computeBoundProperty, diff, equals, getAzimuth, getBackground, getBackgroundAttachment, getBackgroundColor, getBackgroundImage, getBackgroundPosition, getBackgroundRepeat, getBorder, getBorderBottom, getBorderBottomColor, getBorderBottomStyle, getBorderBottomWidth, getBorderCollapse, getBorderColor, getBorderLeft, getBorderLeftColor, getBorderLeftStyle, getBorderLeftWidth, getBorderRight, getBorderRightColor, getBorderRightStyle, getBorderRightWidth, getBorderSpacing, getBorderStyle, getBorderTop, getBorderTopColor, getBorderTopStyle, getBorderTopWidth, getBorderWidth, getBottom, getCaptionSide, getClear, getClip, getColor, getContent, getCounterIncrement, getCounterReset, getCssFloat, getCue, getCueAfter, getCueBefore, getCursor, getDeclaredCSSValue, getDirection, getDisplay, getElevation, getEmptyCells, getFont, getFontFamily, getFontSize, getFontSizeAdjust, getFontStretch, getFontStyle, getFontVariant, getFontWeight, getHeight, getLeft, getLength, getLetterSpacing, getLineHeight, getListStyle, getListStyleImage, getListStylePosition, getListStyleType, getMargin, getMarginBottom, getMarginLeft, getMarginRight, getMarginTop, getMarkerOffset, getMarks, getMaxHeight, getMaxWidth, getMinHeight, getMinWidth, getOrphans, getOutline, getOutlineColor, getOutlineStyle, getOutlineWidth, getOverflow, getPadding, getPaddingBottom, getPaddingLeft, getPaddingRight, getPaddingTop, getPage, getPageBreakAfter, getPageBreakBefore, getPageBreakInside, getParentRule, getPause, getPauseAfter, getPauseBefore, getPitch, getPitchRange, getPlayDuring, getPosition, getPropertyCSSValue, getPropertyPriority, getQuotes, getRichness, getRight, getSize, getSpeak, getSpeakHeader, getSpeakNumeral, getSpeakPunctuation, getSpeechRate, getStress, getStyleDatabase, getStyleSheetFactory, getTableLayout, getTextAlign, getTextDecoration, getTextIndent, getTextShadow, getTextTransform, getTop, getUnicodeBidi, getValueFactory, getVerticalAlign, getVisibility, getVoiceFamily, getVolume, getWhiteSpace, getWidows, getWidth, getWordSpacing, getZIndex, hashCode, isEmpty, item, prioritySplit, removeProperty, setAzimuth, setBackground, setBackgroundAttachment, setBackgroundColor, setBackgroundImage, setBackgroundPosition, setBackgroundRepeat, setBorder, setBorderBottom, setBorderBottomColor, setBorderBottomStyle, setBorderBottomWidth, setBorderCollapse, setBorderColor, setBorderLeft, setBorderLeftColor, setBorderLeftStyle, setBorderLeftWidth, setBorderRight, setBorderRightColor, setBorderRightStyle, setBorderRightWidth, setBorderSpacing, setBorderStyle, setBorderTop, setBorderTopColor, setBorderTopStyle, setBorderTopWidth, setBorderWidth, setBottom, setCaptionSide, setClear, setClip, setColor, setContent, setCounterIncrement, setCounterReset, setCssFloat, setCssText, setCue, setCueAfter, setCueBefore, setCursor, setDirection, setDisplay, setElevation, setEmptyCells, setFont, setFontFamily, setFontSize, setFontSizeAdjust, setFontStretch, setFontStyle, setFontVariant, setFontWeight, setHeight, setLeft, setLetterSpacing, setLexicalProperty, setLineHeight, setListStyle, setListStyleImage, setListStylePosition, setListStyleType, setLonghandProperty, setMargin, setMarginBottom, setMarginLeft, setMarginRight, setMarginTop, setMarkerOffset, setMarks, setMaxHeight, setMaxWidth, setMinHeight, setMinWidth, setOrphans, setOutline, setOutlineColor, setOutlineStyle, setOutlineWidth, setOverflow, setPadding, setPaddingBottom, setPaddingLeft, setPaddingRight, setPaddingTop, setPage, setPageBreakAfter, setPageBreakBefore, setPageBreakInside, setPause, setPauseAfter, setPauseBefore, setPitch, setPitchRange, setPlayDuring, setPosition, setProperty, setProperty, setQuotes, setRichness, setRight, setSize, setSpeak, setSpeakHeader, setSpeakNumeral, setSpeakPunctuation, setSpeechRate, setStress, setTableLayout, setTextAlign, setTextDecoration, setTextIndent, setTextShadow, setTextTransform, setTop, setUnicodeBidi, setVerticalAlign, setVisibility, setVoiceFamily, setVolume, setWhiteSpace, setWidows, setWidth, setWordSpacing, setZIndex, shorthandError, testColor, toString, writeLonghandCssText, writeShorthandCssText

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.w3c.dom.css.CSS2Properties

getAzimuth, getBackground, getBackgroundAttachment, getBackgroundColor, getBackgroundImage, getBackgroundPosition, getBackgroundRepeat, getBorder, getBorderBottom, getBorderBottomColor, getBorderBottomStyle, getBorderBottomWidth, getBorderCollapse, getBorderColor, getBorderLeft, getBorderLeftColor, getBorderLeftStyle, getBorderLeftWidth, getBorderRight, getBorderRightColor, getBorderRightStyle, getBorderRightWidth, getBorderSpacing, getBorderStyle, getBorderTop, getBorderTopColor, getBorderTopStyle, getBorderTopWidth, getBorderWidth, getBottom, getCaptionSide, getClear, getClip, getColor, getContent, getCounterIncrement, getCounterReset, getCssFloat, getCue, getCueAfter, getCueBefore, getCursor, getDirection, getDisplay, getElevation, getEmptyCells, getFont, getFontFamily, getFontSize, getFontSizeAdjust, getFontStretch, getFontStyle, getFontVariant, getHeight, getLeft, getLetterSpacing, getLineHeight, getListStyle, getListStyleImage, getListStylePosition, getListStyleType, getMargin, getMarginBottom, getMarginLeft, getMarginRight, getMarginTop, getMarkerOffset, getMarks, getMaxHeight, getMaxWidth, getMinHeight, getMinWidth, getOrphans, getOutline, getOutlineColor, getOutlineStyle, getOutlineWidth, getOverflow, getPadding, getPaddingBottom, getPaddingLeft, getPaddingRight, getPaddingTop, getPage, getPageBreakAfter, getPageBreakBefore, getPageBreakInside, getPause, getPauseAfter, getPauseBefore, getPitch, getPitchRange, getPlayDuring, getPosition, getQuotes, getRichness, getRight, getSize, getSpeak, getSpeakHeader, getSpeakNumeral, getSpeakPunctuation, getSpeechRate, getStress, getTableLayout, getTextAlign, getTextDecoration, getTextIndent, getTextShadow, getTextTransform, getTop, getUnicodeBidi, getVerticalAlign, getVisibility, getVoiceFamily, getVolume, getWhiteSpace, getWidows, getWidth, getWordSpacing, getZIndex, setAzimuth, setBackground, setBackgroundAttachment, setBackgroundColor, setBackgroundImage, setBackgroundPosition, setBackgroundRepeat, setBorder, setBorderBottom, setBorderBottomColor, setBorderBottomStyle, setBorderBottomWidth, setBorderCollapse, setBorderColor, setBorderLeft, setBorderLeftColor, setBorderLeftStyle, setBorderLeftWidth, setBorderRight, setBorderRightColor, setBorderRightStyle, setBorderRightWidth, setBorderSpacing, setBorderStyle, setBorderTop, setBorderTopColor, setBorderTopStyle, setBorderTopWidth, setBorderWidth, setBottom, setCaptionSide, setClear, setClip, setColor, setContent, setCounterIncrement, setCounterReset, setCssFloat, setCue, setCueAfter, setCueBefore, setCursor, setDirection, setDisplay, setElevation, setEmptyCells, setFont, setFontFamily, setFontSize, setFontSizeAdjust, setFontStretch, setFontStyle, setFontVariant, setFontWeight, setHeight, setLeft, setLetterSpacing, setLineHeight, setListStyle, setListStyleImage, setListStylePosition, setListStyleType, setMargin, setMarginBottom, setMarginLeft, setMarginRight, setMarginTop, setMarkerOffset, setMarks, setMaxHeight, setMaxWidth, setMinHeight, setMinWidth, setOrphans, setOutline, setOutlineColor, setOutlineStyle, setOutlineWidth, setOverflow, setPadding, setPaddingBottom, setPaddingLeft, setPaddingRight, setPaddingTop, setPage, setPageBreakAfter, setPageBreakBefore, setPageBreakInside, setPause, setPauseAfter, setPauseBefore, setPitch, setPitchRange, setPlayDuring, setPosition, setQuotes, setRichness, setRight, setSize, setSpeak, setSpeakHeader, setSpeakNumeral, setSpeakPunctuation, setSpeechRate, setStress, setTableLayout, setTextAlign, setTextDecoration, setTextIndent, setTextShadow, setTextTransform, setTop, setUnicodeBidi, setVerticalAlign, setVisibility, setVoiceFamily, setVolume, setWhiteSpace, setWidows, setWidth, setWordSpacing, setZIndex

Methods inherited from interface io.sf.carte.doc.style.css.CSSComputedProperties

getFontWeight, getPropertyCSSValue, getStyleDatabase

Methods inherited from interface io.sf.carte.doc.style.css.CSSStyleDeclaration

getLength, getParentRule, getPropertyPriority, item, removeProperty, setCssText, setProperty

Constructor Details

ComputedCSSStyle

protected ComputedCSSStyle(BaseDocumentCSSStyleSheet docSheet)

ComputedCSSStyle

protected ComputedCSSStyle(ComputedCSSStyle copiedObject)

Method Details

setOwnerNode

protected void setOwnerNode(CSSElement node)

getOwnerNode

public CSSElement getOwnerNode()

Description copied from class: BaseCSSStyleDeclaration

The node that owns this declaration.

For computed styles, the owner is always the element for which the style was computed.

Specified by:

getOwnerNode in interface CSSComputedProperties

Specified by:

getOwnerNode in interface NodeStyleDeclaration

Overrides:

getOwnerNode in class BaseCSSStyleDeclaration

Returns:

the node that owns this declaration, or null if none.

getOwnerSheet

protected BaseDocumentCSSStyleSheet getOwnerSheet()

getStyleDeclarationErrorHandler

public StyleDeclarationErrorHandler getStyleDeclarationErrorHandler()

Description copied from class: AbstractCSSStyleDeclaration

Get the error handler for this style declaration.

Overrides:

getStyleDeclarationErrorHandler in class BaseCSSStyleDeclaration

Returns:

the error handler, or null if this is an anonymous style declaration.

getPropertyValue

public String getPropertyValue(String propertyName)

Description copied from interface: CSSStyleDeclaration

Gets the text value of a CSS property if it has been explicitly set within this declaration block.

If the declaration was created by a factory with the IEVALUES flag enabled, the compatibility values shall appear in the cssText serializations, but its value won't be returned by this method unless no other valid value was previously specified for the property.

Specified by:

getPropertyValue in interface CSSComputedProperties

Specified by:

getPropertyValue in interface CSSStyleDeclaration

Overrides:

getPropertyValue in class BaseCSSStyleDeclaration

Parameters:

propertyName - The name of the CSS property.

Returns:

the value of the property if it has been explicitly set for this declaration block, or the empty string if the property has not been set or is a shorthand that could not be serialized.

setPropertyCSSValue

protected void setPropertyCSSValue(String propertyName,
 StyleValue value,
 String hrefcontext)

Overrides:

setPropertyCSSValue in class BaseCSSStyleDeclaration

getCascadedValue

public StyleValue getCascadedValue(String property)
                            throws StyleDatabaseRequiredException

Throws:

StyleDatabaseRequiredException

getCSSValue

public StyleValue getCSSValue(String property)
                       throws StyleDatabaseRequiredException

Gets the absolute, primitive "computed" value for the given property.

The rendering context is not taken into account for this method.

See paragraph 6.1.2 of the Document Object Model CSS specification for the definition of "computed" values.

Overrides:

getCSSValue in class BaseCSSStyleDeclaration

Parameters:

property - the property that we want to evaluate.

Returns:

the primitive value of the property, a CSSShorthandValue if the property is a shorthand, or null if the property is not known.

Throws:

StyleDatabaseRequiredException - when a computation that requires a style database is attempted, but no style database has been set.

getComputedFontSize

public float getComputedFontSize()

Gets the computed value of the font-size property.

May require a style database to give accurate results.

Specified by:

getComputedFontSize in interface CSSComputedProperties

Returns:

the value of the font-size property, in typographic points.

getComputedLineHeight

public float getComputedLineHeight()

Gets the computed line height with the default 'normal' value of 1.16em.

Specified by:

getComputedLineHeight in interface CSSComputedProperties

Returns:

the default computed line height, in typographic points.

getComputedLineHeight

public float getComputedLineHeight(float defval)

Gets the computed line height, in typographic points.

Parameters:

defval - the default value in EMs.

Returns:

the computed line height, or the default value if the computed value could not be found.

getCurrentColor

protected TypedValue getCurrentColor()

Overrides:

getCurrentColor in class BaseCSSStyleDeclaration

getCSSColor

public TypedValue getCSSColor()

Description copied from interface: CSSComputedProperties

Gets the primitive, computed value for the 'color' property.

Specified by:

getCSSColor in interface CSSComputedProperties

Overrides:

getCSSColor in class BaseCSSStyleDeclaration

Returns:

the value for the 'color' property.

getCSSBackgroundColor

public TypedValue getCSSBackgroundColor()

Description copied from interface: CSSComputedProperties

Gets the primitive, computed value for the 'background-color' property.

Specified by:

getCSSBackgroundColor in interface CSSComputedProperties

Returns:

the value for the 'background-color' property.

getBackgroundImages

public String[] getBackgroundImages()

Description copied from interface: CSSComputedProperties

Gets the computed value(s) for the 'background-image' property.

Specified by:

getBackgroundImages in interface CSSComputedProperties

Returns:

an array with the values for the layered 'background-image' property, or null if no background image was set for the element.

getHref

protected String getHref(CSSTypedValue cssVal,
 String baseHref)

Attempts to get the absolute Href from the string value of a (uri) property.

Parameters:

cssVal - the uri value.

baseHref - the base href context.

Returns:

the base URL, or null if could not be determined.

getUsedFontFamily

public String getUsedFontFamily()

Gets the used value of the font-family property.

If the computed value is a list, it returns the first item. If a style database is available, it returns the 'used' value.

If no font family is set, a default value of Serif is used.

Specified by:

getUsedFontFamily in interface CSSComputedProperties

Returns:

the value of the font-family property.

getBoxValues

public BoxValues getBoxValues(short unitType)
                       throws DOMException,
StyleDatabaseRequiredException

Get the box values from a simple box model.

Specified by:

getBoxValues in interface CSSComputedProperties

Parameters:

unitType - the desired unit type.

Returns:

the box values, in the specified unit.

Throws:

DOMException - if the document contains features that are not supported by the simple model.

StyleDatabaseRequiredException - when a computation that requires a style database is attempted, but no style database has been set.

getCssText

public String getCssText()

Description copied from class: BaseCSSStyleDeclaration

Retrieves the parsable textual representation of the declaration block (excluding the surrounding curly braces).

Specified by:

getCssText in interface CSSStyleDeclaration

Overrides:

getCssText in class BaseCSSStyleDeclaration

Returns:

the textual representation of the declaration block.

writeCssText

public void writeCssText(SimpleWriter wri,
 StyleFormattingContext context)
                  throws IOException

Description copied from class: AbstractCSSStyleDeclaration

Writes a textual representation of the declaration block (excluding the surrounding curly braces) to a SimpleWriter, and according to a StyleFormattingContext.

Specified by:

writeCssText in interface CSSStyleDeclaration

Overrides:

writeCssText in class BaseCSSStyleDeclaration

Parameters:

wri - the simple writer to write to.

context - the style formatting context.

Throws:

IOException - if a problem occurs while writing the text.

getMinifiedCssText

public String getMinifiedCssText()

Description copied from class: AbstractCSSStyleDeclaration

Retrieves a minified textual representation of the declaration block (excluding the surrounding curly braces).

Specified by:

getMinifiedCssText in interface CSSStyleDeclaration

Overrides:

getMinifiedCssText in class BaseCSSStyleDeclaration

Returns:

the minified representation of this style declaration.

getRevertStyle

public ComputedCSSStyle getRevertStyle(Condition pseudoElt)

getParentComputedStyle

public abstract ComputedCSSStyle getParentComputedStyle()

Gets the computed style for the parent element.

Specified by:

getParentComputedStyle in interface CSSComputedProperties

Returns:

the computed style for the parent element, or null if there is no parent element, or has no style associated.

getText

public String getText()

Gets the (whitespace-trimmed) text content of the node associated to this style.

Returns:

the text content, or the empty string if the box has no text.

clone

public abstract ComputedCSSStyle clone()

Overrides:

clone in class BaseCSSStyleDeclaration