GWT 2.7.0

com.google.gwt.resources.gss
Class ImageSpriteCreator

java.lang.Object
  extended by com.google.gwt.thirdparty.common.css.compiler.ast.DefaultTreeVisitor
      extended by 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.


Nested Class Summary
(package private) static interface ImageSpriteCreator.MethodByPathHelper
           
 
Constructor Summary
ImageSpriteCreator(com.google.gwt.thirdparty.common.css.compiler.ast.MutatingVisitController visitController, ResourceContext context, com.google.gwt.thirdparty.common.css.compiler.ast.ErrorManager errorManager)
           
ImageSpriteCreator(com.google.gwt.thirdparty.common.css.compiler.ast.MutatingVisitController visitController, ResourceContext context, com.google.gwt.thirdparty.common.css.compiler.ast.ErrorManager errorManager, ImageSpriteCreator.MethodByPathHelper methodByPathHelper)
           
 
Method Summary
 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
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

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)

ImageSpriteCreator

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

GWT 2.7.0