Examples of com.google.gxp.compiler.schema.ElementValidator

com.google.gxp.compiler.schema.ElementValidator

Schema component which represents an XML element. SchemaParser creates these out of <element> elements.
Each ElementValidator corresponds to a single type of element in the output, but may be used to validate an arbitrary number of elements of that type. For example, one instance of ElementValidator could be used to validate all XHTML <img> elements.
ElementValidators are retrieved via {@link Schema#getElementValidator(String)}.

    }


    @Override
    public Expression visitOutputElement(OutputElement element) {
      List<Expression> values = Lists.newArrayList();
      ElementValidator elementValidator = element.getValidator();
      Schema elementSchema = element.getSchema();
      String tagPrefix = elementSchema.getTagPrefix();
      DocType docType = element.getDocType();
      if (docType != null) {
        values.add(flattenDocType(element, docType));
      }
      values.add(new StringConstant(element, elementSchema, "<"));
      if (tagPrefix != null) {
        values.add(new StringConstant(element, elementSchema, tagPrefix + ":"));
      }
      values.add(new StringConstant(element, elementSchema,
                                    element.getLocalName()));


      if (docType != null) {
        values.add(flattenXmlns(element));
      }


      for (final Attribute attr : element.getAttributes()) {
        AttributeValidator attrValidator = elementValidator.getAttributeValidator(attr.getName());
        Expression empty = new StringConstant(attr, elementSchema, "");
        if (attrValidator.isFlagSet(AttributeValidator.Flag.BOOLEAN)) {
          Expression attrValue = attr.getValue().acceptVisitor(this);
          if (attrValue.hasStaticString()) {
            values.add(buildBooleanAttrExpression(attr, element));
          } else {
            if (attrValue instanceof ConvertibleToContent) {
              ConvertibleToContent ctc = (ConvertibleToContent)attrValue;
              attrValue = ctc.getSubexpression();
            }
            values.add(new Conditional(element, elementSchema,
                                       attrValue,
                                       buildBooleanAttrExpression(attr, element),
                                       empty));
          }
        } else {
          Expression condition = attr.getCondition();
          if (condition != null) {
            values.add(new Conditional(element, elementSchema, condition,
                                       buildAttrExpression(attr, element), empty));
          } else {
            values.add(buildAttrExpression(attr, element));
          }
        }
      }


      for (String attrBundle : element.getAttrBundles()) {
        values.add(new EscapeExpression(elementSchema,
                                        new AttrBundleReference(element, attrBundle)));
      }


      if (elementValidator.isFlagSet(ElementValidator.Flag.NOENDTAG)) {
        values.add(new Conditional(
            element, elementSchema,
            new IsXmlExpression(element, elementSchema),
            new StringConstant(element, elementSchema, " /"),
            new StringConstant(element, elementSchema, "")));
      }
      values.add(new StringConstant(element, elementSchema, ">"));
      values.add(element.getContent().acceptVisitor(this));
      if (!elementValidator.isFlagSet(ElementValidator.Flag.NOENDTAG)) {
        values.add(new StringConstant(element, elementSchema, "</"));
        if (tagPrefix != null) {
          values.add(new StringConstant(element, elementSchema,
                                        tagPrefix + ":"));
        }

View Full Code Here

      return null;
    }


    // OutputNamespace elements
    public Void visitParsedOutputElement(OutputNamespace.ParsedOutputElement node) {
      ElementValidator validator = node.getValidator();
      AttributeMap attrMap = nodeParts.getAttributes();


      String docTypeName = attrMap.getOptional(GxpNamespace.INSTANCE, "doctype", null);
      DocType docType;
      if (docTypeName == null) {
        docType = null;
      } else {
        docType = validator.getDocType(docTypeName);
        if (docType == null) {
          alertSink.add(new InvalidDoctypeError(node, docTypeName));
        }
      }


      // if an output element has a gxp:ph attribute we surrount the element
      // tags (but NOT the element content) with placeholders
      String phName = attrMap.getOptional(GxpNamespace.INSTANCE, "ph", null);


      // TODO(laurence): always collect content here, and check against
      // NOENDTAG in Validator phase.
      Expression content;
      if (validator.isFlagSet(ElementValidator.Flag.NOENDTAG)) {
        // Ignore supplied children. EditableParts will generate alerts about
        // them if necessary.
        content = new StringConstant(node, null, "");
      } else {
        content = getCollapsableContent(attrMap);
      }


      String innerContentTypeString = validator.getInnerContentType();
      Schema innerSchema = (innerContentTypeString == null)
          ? null
          : schemaFactory.fromContentTypeName(innerContentTypeString);


      List<String> bundles = getBundles(attrMap);


      List<Attribute> attrs = attrMap.getUnusedAttributes();
      output.accumulate(
          new OutputElement(node.getSourcePosition(),
                            node.getDisplayName(),
                            node.getSchema(),
                            innerSchema,
                            validator.getTagName(),
                            validator,
                            docType,
                            checkAttributes(node, validator, attrs),
                            bundles,
                            phName,

View Full Code Here


    @Override
    public Expression visitOutputElement(OutputElement element) {
      boolean oldUseSpecialAttrCollapsing = useSpecialAttrCollapsing;
      useSpecialAttrCollapsing = true;
      ElementValidator validator = element.getValidator();
      SearchingVisitor contentVisitor =
          validator.isFlagSet(ElementValidator.Flag.PRESERVESPACES)
            ? this.with(PRESERVING_SPACE_OPERATORS)
            : this;
      Expression result = element.withAttributesAndContent(
          Util.map(element.getAttributes(), getAttributeFunction()),
          element.getContent().acceptVisitor(contentVisitor));

View Full Code Here

                                     SourcePosition sourcePosition,
                                     String displayName,
                                     String tagName,
                                     List<ParsedAttribute> attrs,
                                     List<ParsedElement> children) {
    ElementValidator validator = schema.getElementValidator(tagName);
    if (validator == null) {
      alertSink.add(new UnknownElementError(sourcePosition, this,
                                            displayName));
      return null;
    } else {

View Full Code Here

    }


    @Override
    public Expression visitOutputElement(OutputElement element) {
      boolean oldVisible = visible;
      ElementValidator elementValidator = element.getValidator();
      boolean oldInsideMsg = insideMsg;
      insideMsg = false;
      for (Attribute attr : element.getAttributes()) {
        AttributeValidator attrValidator =
            elementValidator.getAttributeValidator(attr.getName());
        visible = attrValidator.isFlagSet(AttributeValidator.Flag.VISIBLETEXT);
        visitAttribute(attr);
        visible = oldVisible;
      }
      insideMsg = oldInsideMsg;
      visible &= !elementValidator.isFlagSet(ElementValidator.Flag.INVISIBLEBODY);
      apply(element.getContent());
      visible = oldVisible;
      return element;
    }

View Full Code Here

      return null;
    }


    // OutputNamespace elements
    public Void visitParsedOutputElement(OutputNamespace.ParsedOutputElement node) {
      ElementValidator validator = node.getValidator();
      AttributeMap attrMap = nodeParts.getAttributes();


      String docTypeName = attrMap.getOptional(GxpNamespace.INSTANCE, "doctype", null);
      DocType docType;
      if (docTypeName == null) {
        docType = null;
      } else {
        docType = validator.getDocType(docTypeName);
        if (docType == null) {
          alertSink.add(new InvalidDoctypeError(node, docTypeName));
        }
      }


      // if an output element has a gxp:ph attribute we surrount the element
      // tags (but NOT the element content) with placeholders
      String phName = attrMap.getOptional(GxpNamespace.INSTANCE, "ph", null);


      // TODO(laurence): always collect content here, and check against
      // NOENDTAG in Validator phase.
      Expression content;
      if (validator.isFlagSet(ElementValidator.Flag.NOENDTAG)) {
        // Ignore supplied children. EditableParts will generate alerts about
        // them if necessary.
        content = new StringConstant(node, null, "");
      } else {
        content = getCollapsableContent(attrMap);
      }


      String innerContentTypeString = validator.getInnerContentType();
      Schema innerSchema = (innerContentTypeString == null)
          ? null
          : schemaFactory.fromContentTypeName(innerContentTypeString);


      List<String> bundles = getBundles(attrMap);


      List<Attribute> attrs = attrMap.getUnusedAttributes();
      output.accumulate(
          new OutputElement(node.getSourcePosition(),
                            node.getDisplayName(),
                            node.getSchema(),
                            innerSchema,
                            validator.getTagName(),
                            validator,
                            docType,
                            checkAttributes(node, validator, attrs),
                            bundles,
                            phName,

View Full Code Here

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Related Classes of com.google.gxp.compiler.schema.ElementValidator

com.google.gxp.compiler.collapse.SpaceCollapser$SearchingVisitor

com.google.gxp.compiler.flatten.ContentFlattener$Visitor

com.google.gxp.compiler.i18ncheck.I18nChecker$Visitor

com.google.gxp.compiler.parser.OutputNamespace

com.google.gxp.compiler.reparent.Reparenter$ElementVisitor

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