Example usage for com.google.common.css.compiler.ast CssTree getMutatingVisitController

Introduction

In this page you can find the example usage for com.google.common.css.compiler.ast CssTree getMutatingVisitController.

Prototype

public MutatingVisitController getMutatingVisitController() 

Source Link

Usage

From source file:com.google.gwt.resources.rg.GssResourceGenerator.java

private List<String> finalizeTree(CssTree cssTree) throws UnableToCompleteException {
    new CheckDependencyNodes(cssTree.getMutatingVisitController(), errorManager, false).runPass();

    // Don't continue if errors exist
    checkErrors();/*from   w w w .  j  ava  2  s  .c o  m*/

    new CreateStandardAtRuleNodes(cssTree.getMutatingVisitController(), errorManager).runPass();
    new CreateMixins(cssTree.getMutatingVisitController(), errorManager).runPass();
    new CreateDefinitionNodes(cssTree.getMutatingVisitController(), errorManager).runPass();
    new CreateConstantReferences(cssTree.getMutatingVisitController()).runPass();
    new CreateConditionalNodes(cssTree.getMutatingVisitController(), errorManager).runPass();
    new CreateRuntimeConditionalNodes(cssTree.getMutatingVisitController()).runPass();
    new CreateComponentNodes(cssTree.getMutatingVisitController(), errorManager).runPass();

    new HandleUnknownAtRuleNodes(cssTree.getMutatingVisitController(), errorManager, allowedAtRules, true,
            false).runPass();
    new ProcessKeyframes(cssTree.getMutatingVisitController(), errorManager, true, true).runPass();
    new ProcessRefiners(cssTree.getMutatingVisitController(), errorManager, true).runPass();

    PermutationsCollector permutationsCollector = new PermutationsCollector(
            cssTree.getMutatingVisitController(), errorManager);
    permutationsCollector.runPass();

    return permutationsCollector.getPermutationAxes();
}

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From source file:com.google.gwt.resources.rg.GssResourceGenerator.java

private Set<String> collectExternalClasses(CssTree cssTree) {
    ExternalClassesCollector externalClassesCollector = new ExternalClassesCollector(
            cssTree.getMutatingVisitController());

    externalClassesCollector.runPass();/*from   www . j  av a  2s .c  o  m*/

    return externalClassesCollector.getExternalClassNames();
}

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From source file:com.google.gwt.resources.rg.GssResourceGenerator.java

private OptimizationInfo optimize(ExtendedCssTree extendedCssTree, ResourceContext context, boolean simplifyCss,
        boolean eliminateDeadStyles) throws UnableToCompleteException {
    CssTree cssTree = extendedCssTree.getCssTree();

    // Collect mixin definitions and replace mixins
    CollectMixinDefinitions collectMixinDefinitions = new CollectMixinDefinitions(
            cssTree.getMutatingVisitController(), errorManager);
    collectMixinDefinitions.runPass();//  w ww. ja v  a  2 s.co m
    new ReplaceMixins(cssTree.getMutatingVisitController(), errorManager,
            collectMixinDefinitions.getDefinitions()).runPass();

    new ProcessComponents<Object>(cssTree.getMutatingVisitController(), errorManager).runPass();

    RuntimeConditionalNodeCollector runtimeConditionalNodeCollector = new RuntimeConditionalNodeCollector(
            cssTree.getVisitController());
    runtimeConditionalNodeCollector.runPass();

    new ExtendedEliminateConditionalNodes(cssTree.getMutatingVisitController(),
            getPermutationsConditions(context, extendedCssTree.getPermutationAxes()),
            runtimeConditionalNodeCollector.getRuntimeConditionalNodes()).runPass();

    new DisallowDefInsideRuntimeConditionalNode(cssTree.getVisitController(), errorManager).runPass();

    // Don't continue if errors exist
    checkErrors();

    CollectConstantDefinitions collectConstantDefinitionsPass = new CollectConstantDefinitions(cssTree);
    collectConstantDefinitionsPass.runPass();

    ReplaceConstantReferences replaceConstantReferences = new ReplaceConstantReferences(cssTree,
            collectConstantDefinitionsPass.getConstantDefinitions(), true, errorManager, false);
    replaceConstantReferences.runPass();

    new ImageSpriteCreator(cssTree.getMutatingVisitController(), context, errorManager).runPass();

    Map<String, GssFunction> gssFunctionMap = new GwtGssFunctionMapProvider(context).get();
    new ResolveCustomFunctionNodes(cssTree.getMutatingVisitController(), errorManager, gssFunctionMap, true,
            allowedNonStandardFunctions).runPass();

    if (simplifyCss) {
        // Eliminate empty rules.
        new EliminateEmptyRulesetNodes(cssTree.getMutatingVisitController()).runPass();
        // Eliminating units for zero values.
        new EliminateUnitsFromZeroNumericValues(cssTree.getMutatingVisitController()).runPass();
        // Optimize color values.
        new ColorValueOptimizer(cssTree.getMutatingVisitController()).runPass();
        // Compress redundant top-right-bottom-left value lists.
        new AbbreviatePositionalValues(cssTree.getMutatingVisitController()).runPass();
    }

    if (eliminateDeadStyles) {
        // Report errors for duplicate declarations
        new DisallowDuplicateDeclarations(cssTree.getVisitController(), errorManager).runPass();
        // Split rules by selector and declaration.
        new SplitRulesetNodes(cssTree.getMutatingVisitController()).runPass();
        // Dead code elimination.
        new MarkRemovableRulesetNodes(cssTree).runPass();
        new EliminateUselessRulesetNodes(cssTree).runPass();
        // Merge of rules with same selector.
        new MergeAdjacentRulesetNodesWithSameSelector(cssTree).runPass();
        new EliminateUselessRulesetNodes(cssTree).runPass();
        // Merge of rules with same styles.
        new MergeAdjacentRulesetNodesWithSameDeclarations(cssTree).runPass();
        new EliminateUselessRulesetNodes(cssTree).runPass();
    }

    return new OptimizationInfo(collectConstantDefinitionsPass.getConstantDefinitions());
}

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From source file:com.google.gwt.resources.rg.GssResourceGenerator.java

@Override
protected String getCssExpression(TreeLogger logger, ResourceContext context, JMethod method)
        throws UnableToCompleteException {
    CssTree cssTree = cssTreeMap.get(method).getCssTree();

    String standard = printCssTree(cssTree);

    // TODO add configuration properties for swapLtrRtlInUrl, swapLeftRightInUrl and
    // shouldFlipConstantReferences booleans
    RecordingBidiFlipper recordingBidiFlipper = new RecordingBidiFlipper(cssTree.getMutatingVisitController(),
            false, false, true);/* w w  w .  j a  va 2  s  . c om*/
    recordingBidiFlipper.runPass();

    if (recordingBidiFlipper.nodeFlipped()) {
        String reversed = printCssTree(cssTree);
        return LocaleInfo.class.getName() + ".getCurrentLocale().isRTL() ? " + reversed + " : " + standard;
    } else {
        return standard;
    }
}

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From source file:com.google.gwt.resources.rg.GssResourceGenerator.java

private Map<String, String> doClassRenaming(CssTree cssTree, JMethod method, TreeLogger logger,
        ResourceContext context) throws UnableToCompleteException {
    Map<String, Map<String, String>> replacementsWithPrefix = computeReplacements(method, logger, context);

    Set<String> externalClasses = collectExternalClasses(cssTree);

    RenamingSubstitutionMap substitutionMap = new RenamingSubstitutionMap(replacementsWithPrefix,
            externalClasses, isStrictResource(method), logger);

    new CssClassRenaming(cssTree.getMutatingVisitController(), substitutionMap, null).runPass();

    if (substitutionMap.hasError()) {
        throw new UnableToCompleteException();
    }/* www .  j a v  a2  s.co  m*/

    Map<String, String> mapping = replacementsWithPrefix.get("");

    mapping = Maps.newHashMap(Maps.filterKeys(mapping, Predicates.in(substitutionMap.getStyleClasses())));

    // add external classes in the mapping
    for (String external : externalClasses) {
        mapping.put(external, external);
    }

    return mapping;
}

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