Examples of org.eclipse.wst.xml.core.internal.contentmodel.modelquery.ModelQuery

Package org.eclipse.wst.xml.core.internal.contentmodel.modelquery

Examples of org.eclipse.wst.xml.core.internal.contentmodel.modelquery.ModelQuery

org.eclipse.wst.xml.core.internal.contentmodel.modelquery.ModelQuery
This class provides an interface for performing higher level queries based on a xml model (DOM) and one or more associated content models (CMDocument). The queries provided can be organized into three groups: 1) DOM Node to CMNode mapping Given a grammatically valid DOM Node the corresponding CMNode can be determined. (i.e. Element -> CMElementDeclaration, Attr -> CMAttributeDeclaration, CharacterData -> CMDataType) 2) DOM editing tests ("Can I do this?") Questions such as canInsert, canRemove, canReplace can assist in the editing of a DOM. The validityChecking argument determines the strictness of the validity testing that occurs. - VALIDITY_NONE : The current content of the Element is ignored. Only the content model is considered. This is most useful for codeassist related queries. - VALIDITY_STRICT : The current content of the Element is considered. Returns true only if the operation preserves content validity. This is useful when DOM editing needs to be constrained to maintain validity. - VALIDITY_PARTIAL : Some optimized compromise between the two options above. 3) DOM editing actions ("What can I do here?") These methods return ModelQueryActions that are relevant at some specified DOM Node. The actions indicate what kinds of DOM Node can be inserted where (at what index).

  public IPropertyDescriptor createTextPropertyDescriptor(Text text) {
    IPropertyDescriptor result = null;
    Node parentNode = text.getParentNode();
    if ((parentNode != null) && (parentNode.getNodeType() == Node.ELEMENT_NODE)) {
      Element parentElement = (Element) parentNode;
      ModelQuery mq = ModelQueryUtil.getModelQuery(text.getOwnerDocument());
      CMElementDeclaration ed = null;
      if (mq != null) {
        ed = mq.getCMElementDeclaration(parentElement);
      }
      if (ed != null) {
        result = createPropertyDescriptorHelper(HACK, parentElement, ed);
      }
      else {

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  public IPropertyDescriptor createAttributePropertyDescriptor(Attr attr) {
    IPropertyDescriptor result = null;


    String attributeName = attr.getName();
    ModelQuery mq = ModelQueryUtil.getModelQuery(attr.getOwnerDocument());


    CMAttributeDeclaration ad = null;
    if (mq != null) {
      ad = mq.getCMAttributeDeclaration(attr);
    }
    if (ad != null) {
      result = createPropertyDescriptorHelper(attributeName, attr.getOwnerElement(), ad);
    }

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    }
    else {
      // ENUMERATED values
      String[] valueStrings = null;
      // valueStrings = valuesHelper.getEnumeratedValues();
      ModelQuery modelQuery = ModelQueryUtil.getModelQuery(fNode.getOwnerDocument());
      if ((modelQuery != null) && (fNode.getNodeType() == Node.ELEMENT_NODE)) {
        valueStrings = modelQuery.getPossibleDataTypeValues((Element) fNode, attrDecl);
      }
      else {
        valueStrings = attrDecl.getAttrType().getEnumeratedValues();
      }
      if (valueStrings != null) {

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   * @return CMElementDeclaration
   */
  private CMElementDeclaration getCMElementDeclaration(Element element) {
    CMElementDeclaration ed = null;


    ModelQuery mq = ModelQueryUtil.getModelQuery(element.getOwnerDocument());
    if (mq != null) {
      ed = mq.getCMElementDeclaration(element);
    }
    return ed;
  }

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  private CMElementDeclaration getDeclaration() {
    if ((fNode == null) || (fNode.getNodeType() != Node.ELEMENT_NODE)) {
      return null;
    }
    ModelQuery modelQuery = ModelQueryUtil.getModelQuery(fNode.getOwnerDocument());
    if (modelQuery != null) {
      return modelQuery.getCMElementDeclaration((Element) fNode);
    }
    return null;
  }

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    CMElementDeclaration ed = getDeclaration();
    CMNamedNodeMap attrMap = null;
    if (ed != null) {
      attrMap = ed.getAttributes();
      CMNamedNodeMapImpl allAttributes = new CMNamedNodeMapImpl(attrMap);
      ModelQuery modelQuery = ModelQueryUtil.getModelQuery(fNode.getOwnerDocument());
      if(modelQuery != null) {
      List nodes = modelQuery.getAvailableContent((Element) fNode, ed, ModelQuery.INCLUDE_ATTRIBUTES);
        for (int k = 0; k < nodes.size(); k++) {
          CMNode cmnode = (CMNode) nodes.get(k);
          if (cmnode.getNodeType() == CMNode.ATTRIBUTE_DECLARATION) {
            allAttributes.put(cmnode);
          }

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  public static String SMALL_ICON_URL = "small-icon"; //$NON-NLS-1$


  public static CMNode getDeclaration(Node node) {
    CMNode decl = null;
    ModelQuery mq = null;
    switch (node.getNodeType()) {
      case Node.ATTRIBUTE_NODE : {
        mq = ModelQueryUtil.getModelQuery(((Attr) node).getOwnerDocument());
        decl = mq.getCMAttributeDeclaration((Attr) node);
      }
        break;
      case Node.ELEMENT_NODE : {
        mq = ModelQueryUtil.getModelQuery(node.getOwnerDocument());
        decl = mq.getCMElementDeclaration((Element) node);
      }
        break;
    }
    return decl;
  }

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  public void invokeCMDocumentLoad() {
    if (fIsDisabled) return;
    try {
      fIsLoading = true;
      
      ModelQuery modelQuery = ModelQueryUtil.getModelQuery(fDocument);
      if ((modelQuery != null) && (modelQuery.getCMDocumentManager() != null)) {
        CMDocumentLoader loader = isGrammarInferenceEnabled ? new InferredGrammarBuildingCMDocumentLoader(fDocument, modelQuery) : new CMDocumentLoader(fDocument, modelQuery);
        loader.loadCMDocuments();
      }
    } finally {
      fIsLoading = false;

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   *         <code>null</code> if not possible
   */
  protected CMElementDeclaration getCMElementDeclaration(Node node) {
    CMElementDeclaration result = null;
    if (node.getNodeType() == Node.ELEMENT_NODE) {
      ModelQuery modelQuery = ModelQueryUtil.getModelQuery(node.getOwnerDocument());
      if (modelQuery != null) {
        result = modelQuery.getCMElementDeclaration((Element) node);
      }
    }
    return result;
  }

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    Assert.isTrue(fCMDocumentManagerListener == null);


    // register for CMDocumentManager events
    ModelQueryAdapter mqadapter = (ModelQueryAdapter) node.getAdapterFor(ModelQueryAdapter.class);
    if (mqadapter != null) {
      ModelQuery mquery = mqadapter.getModelQuery();
      if ((mquery != null) && (mquery.getCMDocumentManager() != null)) {
        cmDocumentManager = mquery.getCMDocumentManager();
        fCMDocumentManagerListener = new CMDocumentManagerListenerImpl();
        cmDocumentManager.addListener(fCMDocumentManagerListener);
      }
    }
  }

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