org.apache.flex.compiler.internal.css.codegen

Class CSSCompilationSession

java.lang.Object

org.apache.flex.compiler.internal.css.codegen.CSSCompilationSession

Direct Known Subclasses:

JSCSSCompilationSession

public class CSSCompilationSession
extends Object

A CSS compilation session stores data used by one compilation cycle.

This class has two goals

1. Cache CSS semantic resolution results for CSS code generation.
2. Exclude CSS rules not used by any compilation units so that the target size SWF is smaller.

In order to keep CSS model immutable during semantic analysis, the analysis result such as which rules to keep and which properties to clobber is stored in this auxiliary data structure.

Field Summary

Fields

Modifier and Type	Field and Description
Set<ICSSRule>	activatedRules A set of rules that will be included in the code generation.
List<ICSSDocument>	cssDocuments A list of CSS models to be included in the code generation.
ArrayList<CSSFontFace>	fontFaces A set of font faces that will be included in the code generation.
Set<String>	inheritingStyles A set of inheriting style names.
Map<CSSFunctionCallPropertyValue,EmbedCompilationUnit>	resolvedEmbedProperties A map from Embed() property values to their resolved EmbedCompilationUnit's.
Map<ICSSSelector,String>	resolvedSelectors A map of type selectors to their resolved class qnames.

Constructor Summary

Constructors

Constructor and Description
CSSCompilationSession() Initialize a CSS compilation session object.

Method Summary

Methods

Modifier and Type	Method and Description
void	disable() Disables CSS code generation and dependency analysis for this CSSCompilationSession.
ICSSCodeGenResult	emitStyleDataClass(IFlexProject project, IABCVisitor abcVisitor) Generate code for CSS data.
boolean	isDisabled()
boolean	isKeepAllTypeSelectors()
protected boolean	keepRule(ICSSRule newRule) Determine if a rule should be in the output
void	setKeepAllTypeSelectors(boolean keepAllTypeSelectors) Set whether to keep all type selectors for linking.
protected ICSSDocument	synthesisNormalizedCSS() Synthesize a normalized CSS model from the ICSSRule's activated from singleSelectorRules.

Methods inherited from class java.lang.Object

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

Field Detail

resolvedEmbedProperties

public final Map<CSSFunctionCallPropertyValue,EmbedCompilationUnit> resolvedEmbedProperties

A map from Embed() property values to their resolved EmbedCompilationUnit's.

resolvedSelectors

public final Map<ICSSSelector,String> resolvedSelectors

A map of type selectors to their resolved class qnames.

inheritingStyles

public final Set<String> inheritingStyles

A set of inheriting style names.

activatedRules

public final Set<ICSSRule> activatedRules

A set of rules that will be included in the code generation.

fontFaces

public ArrayList<CSSFontFace> fontFaces

A set of font faces that will be included in the code generation.

cssDocuments

public final List<ICSSDocument> cssDocuments

A list of CSS models to be included in the code generation. The CSS properties are prioritized by their order in the list. The first CSS in the model has the least priority.

Constructor Detail

CSSCompilationSession

public CSSCompilationSession()

Initialize a CSS compilation session object.

Method Detail

keepRule

protected boolean keepRule(ICSSRule newRule)

Determine if a rule should be in the output

Returns:

true if rule should be in the output

synthesisNormalizedCSS

protected ICSSDocument synthesisNormalizedCSS()

Synthesize a normalized CSS model from the ICSSRule's activated from singleSelectorRules. The normalized CSS does not have "@namespace" rules; Its rules come from different CSS documents.

Returns:

A synthesized CSS model from normalized CSS model.

emitStyleDataClass

public ICSSCodeGenResult emitStyleDataClass(IFlexProject project,
                                   IABCVisitor abcVisitor)
                                     throws Exception

Generate code for CSS data.

Parameters:

project - ICompilerProject for which code is being generated.

abcVisitor - IABCVisitor to which needed abc constructs are added.

Throws:

Exception - error

disable

public void disable()

Disables CSS code generation and dependency analysis for this CSSCompilationSession. This method is called from SWFTarget when compiling a SWF that will not have a system manager.

isDisabled

public boolean isDisabled()

Returns:

true if CSS code generation and dependency analysis is disabled for this CSSCompilationSession, false otherwise.

isKeepAllTypeSelectors

public boolean isKeepAllTypeSelectors()

Returns:

True if all type selectors are kept for linking.

setKeepAllTypeSelectors

public void setKeepAllTypeSelectors(boolean keepAllTypeSelectors)

Set whether to keep all type selectors for linking.

Parameters:

keepAllTypeSelectors - value