| /******************************************************************************* |
| * Copyright (c) 2004, 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - Initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.xsd.ui.internal.text; |
| |
| import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel; |
| import org.eclipse.wst.xsd.ui.internal.util.ModelReconcileAdapter; |
| import org.eclipse.xsd.XSDConcreteComponent; |
| import org.eclipse.xsd.XSDSchema; |
| import org.eclipse.xsd.util.XSDConstants; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| |
| public class XSDModelReconcileAdapter extends ModelReconcileAdapter |
| { |
| protected XSDSchema schema; |
| |
| public XSDModelReconcileAdapter(Document document, XSDSchema schema) |
| { |
| super(document); |
| this.schema = schema; |
| } |
| |
| protected void handleNodeChanged(Node node) |
| { |
| // Make sure that the node is in the XSD Schema namespace. We don't need to |
| // reconcile the model for other nodes like text or nodes in other namespaces |
| // like the ones normally occurring in annotations. |
| |
| try |
| { |
| if (!shouldReconcileModelFor(node)) |
| { |
| return; |
| } |
| } |
| catch (Exception e) |
| { |
| } |
| |
| if (node instanceof Element) |
| { |
| XSDConcreteComponent concreteComponent = schema.getCorrespondingComponent(node); |
| concreteComponent.elementChanged((Element)node); |
| } |
| else if (node instanceof Document) |
| { |
| // The document changed so we may need to fix up the |
| // definition's root element |
| Document document = (Document)node; |
| Element schemaElement = document.getDocumentElement(); |
| if (schemaElement != null && schemaElement != schema.getElement()) |
| { |
| // here we handle the case where a new 'schema' element was added |
| //(e.g. the file was totally blank and then we type in the root element) |
| // |
| if (schemaElement.getLocalName().equals(XSDConstants.SCHEMA_ELEMENT_TAG)) |
| { |
| //System.out.println("****** Setting new schema"); |
| schema.setElement(schemaElement); |
| } |
| } |
| else if (schemaElement != null) |
| { |
| // handle the case where the definition element's content has changed |
| // TODO (cs) do we really need to handle this case? |
| schema.elementChanged(schemaElement); |
| } |
| else if (schemaElement == null) |
| { |
| // if there's no root element clear out the schema |
| // |
| schema.getContents().clear(); |
| // TODO (cs) I'm not sure why the above isn't enough |
| // to clear out all of the component lists |
| // for now I've just added a few more lines to do additional clearing |
| // |
| schema.getElementDeclarations().clear(); |
| schema.getTypeDefinitions().clear(); |
| schema.getAttributeDeclarations().clear(); |
| schema.getModelGroupDefinitions().clear(); |
| schema.getAttributeGroupDefinitions().clear(); |
| |
| schema.setElement(null); |
| } |
| } |
| } |
| |
| /** |
| * Checks if a change to the given node should trigger a model update. |
| * |
| * @param changedNode |
| * the DOM node to test. |
| * @return true if the change to the given node should trigger a model update. |
| */ |
| protected boolean shouldReconcileModelFor(Node changedNode) |
| { |
| // No need to reconcile if the node is in a different namespace as it is the |
| // case for nodes deeply nested in appinfo or documentation elements. |
| |
| String nodeNamespace = changedNode.getNamespaceURI(); |
| String schemaNamespace = schema.getSchemaForSchemaNamespace(); |
| |
| if (!schemaNamespace.equals(nodeNamespace)) |
| { |
| return false; |
| } |
| |
| // When a child node is added to an appinfo or documentation element |
| // No need to reconcile if the node is the first child of appinfo or documentation |
| // elements. |
| |
| Node parentNode = changedNode.getParentNode(); |
| |
| if (parentNode != null) |
| { |
| String nodeName = changedNode.getLocalName(); |
| |
| if (XSDConstants.APPINFO_ELEMENT_TAG.equals(nodeName) || XSDConstants.DOCUMENTATION_ELEMENT_TAG.equals(nodeName)) |
| { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| public void modelDirtyStateChanged(IStructuredModel model, boolean isDirty) |
| { |
| if (!isDirty) |
| { |
| // TODO need a way to tell the views to stop refreshing (temporarily) |
| // |
| /* |
| schema.reset(); |
| |
| // For some reason type references don't get fixed up when an import is removed |
| // even if we call schema.reset() explictly. To work around this we iterate thru |
| // the type references and recompute them incase a schema did infact change |
| // |
| for (Iterator i = schema.getElementDeclarations().iterator(); i.hasNext(); ) |
| { |
| XSDElementDeclarationImpl ed = (XSDElementDeclarationImpl)i.next(); |
| //ed.elementAttributesChanged(ed.getElement()); |
| XSDTypeDefinition td = ed.getTypeDefinition(); |
| td = ed.resolveTypeDefinition(td.getSchema().getTargetNamespace(), td.getName()); |
| ed.setTypeDefinition(td); |
| }*/ |
| } |
| } |
| } |