Package com.openhtmltopdf.context

Class StylesheetFactoryImpl

java.lang.Object

com.openhtmltopdf.context.StylesheetFactoryImpl

All Implemented Interfaces:

StylesheetFactory

public class StylesheetFactoryImpl
extends Object
implements StylesheetFactory

A Factory class for Cascading Style Sheets. Sheets are parsed using a single parser instance for all sheets. Sheets are cached by URI using a LRU test, but timestamp of file is not checked.

Field Summary

Fields

Modifier and Type	Field	Description
private final CSSParser	_cssParser
private final Map<String,Integer>	_seenStylesheetUris	This may avoid @import loops, ie.
private UserAgentCallback	_userAgentCallback	the UserAgentCallback to resolve uris
private static final int	MAX_STYLESHEET_INCLUDES	The maximum number of times a stylesheet uri can be link or imported before we give up and conclude there is a loop.

Constructor Summary

Constructors

Constructor	Description
StylesheetFactoryImpl(UserAgentCallback userAgentCallback)

Method Summary

Modifier and Type	Method	Description
Stylesheet	getStylesheet(StylesheetInfo info)	Returns a sheet by its key null if not able to load
private Stylesheet	parse(StylesheetInfo info)
Stylesheet	parse(Reader reader, StylesheetInfo info)
Ruleset	parseStyleDeclaration(int origin, String styleDeclaration)
void	setSupportCMYKColors(boolean b)
void	setUserAgentCallback(UserAgentCallback userAgent)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

_userAgentCallback

private UserAgentCallback _userAgentCallback

the UserAgentCallback to resolve uris

_seenStylesheetUris

private final Map<String,Integer> _seenStylesheetUris

This may avoid @import loops, ie. one.css includes two.css which then includes one.css.

MAX_STYLESHEET_INCLUDES

private static final int MAX_STYLESHEET_INCLUDES

The maximum number of times a stylesheet uri can be link or imported before we give up and conclude there is a loop.

See Also:

• Constant Field Values

_cssParser

private final CSSParser _cssParser

Constructor Details

StylesheetFactoryImpl

public StylesheetFactoryImpl(UserAgentCallback userAgentCallback)

Method Details

parse

public Stylesheet parse(Reader reader,
 StylesheetInfo info)

Specified by:

parse in interface StylesheetFactory

parse

private Stylesheet parse(StylesheetInfo info)

Returns:

Returns null if uri could not be loaded

parseStyleDeclaration

public Ruleset parseStyleDeclaration(int origin,
 String styleDeclaration)

Specified by:

parseStyleDeclaration in interface StylesheetFactory

getStylesheet

public Stylesheet getStylesheet(StylesheetInfo info)

Returns a sheet by its key null if not able to load

Specified by:

getStylesheet in interface StylesheetFactory

Parameters:

info - The StylesheetInfo for this sheet

Returns:

The stylesheet

setUserAgentCallback

public void setUserAgentCallback(UserAgentCallback userAgent)

setSupportCMYKColors

public void setSupportCMYKColors(boolean b)