com.google.gwt.resources.gss

Class ImageSpriteCreator

java.lang.Object

com.google.gwt.thirdparty.common.css.compiler.ast.DefaultTreeVisitor

com.google.gwt.resources.gss.ImageSpriteCreator

All Implemented Interfaces:

com.google.gwt.thirdparty.common.css.compiler.ast.AtRuleHandler, com.google.gwt.thirdparty.common.css.compiler.ast.CssCompilerPass, com.google.gwt.thirdparty.common.css.compiler.ast.CssTreeVisitor

public class ImageSpriteCreator
extends com.google.gwt.thirdparty.common.css.compiler.ast.DefaultTreeVisitor
implements com.google.gwt.thirdparty.common.css.compiler.ast.CssCompilerPass

Visitor that detects sprite definitions and replace them by several css rules in order to create the corresponding sprited image.

This visitor will replace the following gss: .foo { padding: 5px; gwt-sprite: imageResource; width: 150px; } to the corresponding gss: .foo { padding: 5px; /* @alternate */ width: eval("imageResource.getWidth", "px"); /* @alternate */ height: eval("imageResource.getHeight", "px"); /* @alternate */ overflow: hidden; /* @alternate */ background: resourceUrl("imageResource") eval("imageResource.getLeft", "px") eval("imageResource.getTop", "px") no-repeat; width: 150px; }

This visitor will also check the presence of the ImageResource.ImageOptions annotation on the image resource in order to support correctly horizontal or vertical repetition.

Constructor Summary

Constructors

Constructor and Description
ImageSpriteCreator(com.google.gwt.thirdparty.common.css.compiler.ast.MutatingVisitController visitController, ResourceContext context, com.google.gwt.thirdparty.common.css.compiler.ast.ErrorManager errorManager)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	enterDeclaration(com.google.gwt.thirdparty.common.css.compiler.ast.CssDeclarationNode declaration)
void	runPass()

Methods inherited from class com.google.gwt.thirdparty.common.css.compiler.ast.DefaultTreeVisitor

enterArgumentNode, enterAttributeSelector, enterBlock, enterClassSelector, enterCombinator, enterComponent, enterCompositeValueNode, enterCompositeValueNodeOperator, enterConditionalBlock, enterConditionalRule, enterDeclarationBlock, enterDefinition, enterFontFace, enterFunctionNode, enterIdSelector, enterImportBlock, enterImportRule, enterKey, enterKeyBlock, enterKeyframeRuleset, enterKeyframesRule, enterMediaRule, enterMediaTypeListDelimiter, enterMixin, enterMixinDefinition, enterPageRule, enterPageSelector, enterPropertyValue, enterProvideNode, enterPseudoClass, enterPseudoElement, enterRequireNode, enterRuleset, enterSelector, enterSelectorBlock, enterTree, enterUnknownAtRule, enterValueNode, leaveArgumentNode, leaveAttributeSelector, leaveBlock, leaveClassSelector, leaveCombinator, leaveComponent, leaveCompositeValueNode, leaveCompositeValueNodeOperator, leaveConditionalBlock, leaveConditionalRule, leaveDeclaration, leaveDeclarationBlock, leaveDefinition, leaveFontFace, leaveFunctionNode, leaveIdSelector, leaveImportBlock, leaveImportRule, leaveKey, leaveKeyBlock, leaveKeyframeRuleset, leaveKeyframesRule, leaveMediaRule, leaveMediaTypeListDelimiter, leaveMixin, leaveMixinDefinition, leavePageRule, leavePageSelector, leavePropertyValue, leaveProvideNode, leavePseudoClass, leavePseudoElement, leaveRequireNode, leaveRuleset, leaveSelector, leaveSelectorBlock, leaveTree, leaveUnknownAtRule, leaveValueNode, visit

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, toString

Constructor Detail

ImageSpriteCreator

public ImageSpriteCreator(com.google.gwt.thirdparty.common.css.compiler.ast.MutatingVisitController visitController,
                  ResourceContext context,
                  com.google.gwt.thirdparty.common.css.compiler.ast.ErrorManager errorManager)

Method Detail

enterDeclaration

public boolean enterDeclaration(com.google.gwt.thirdparty.common.css.compiler.ast.CssDeclarationNode declaration)

Specified by:

enterDeclaration in interface com.google.gwt.thirdparty.common.css.compiler.ast.CssTreeVisitor

Overrides:

enterDeclaration in class com.google.gwt.thirdparty.common.css.compiler.ast.DefaultTreeVisitor

runPass

public void runPass()

Specified by:

runPass in interface com.google.gwt.thirdparty.common.css.compiler.ast.CssCompilerPass