/*******************************************************************************
* Copyright (c) 2007, 2012 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
* bug:244839 - eugene@genuitec.com
*******************************************************************************/
package org.eclipse.wst.jsdt.web.ui.views.contentoutline;
import java.util.ArrayList;
import java.util.List;
import java.util.Vector;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.jface.text.Position;
import org.eclipse.swt.graphics.Image;
import org.eclipse.wst.html.ui.internal.contentoutline.JFaceNodeAdapterForHTML;
import org.eclipse.wst.jsdt.core.IJavaScriptElement;
import org.eclipse.wst.jsdt.core.IJavaScriptUnit;
import org.eclipse.wst.jsdt.core.IMember;
import org.eclipse.wst.jsdt.core.ISourceRange;
import org.eclipse.wst.jsdt.core.ISourceReference;
import org.eclipse.wst.jsdt.core.IType;
import org.eclipse.wst.jsdt.core.JavaScriptModelException;
import org.eclipse.wst.jsdt.internal.core.JavaElement;
import org.eclipse.wst.jsdt.internal.core.Member;
import org.eclipse.wst.jsdt.internal.core.SourceRefElement;
import org.eclipse.wst.jsdt.ui.JavaScriptElementLabelProvider;
import org.eclipse.wst.jsdt.ui.StandardJavaScriptElementContentProvider;
import org.eclipse.wst.jsdt.web.core.javascript.IJsTranslation;
import org.eclipse.wst.jsdt.web.core.javascript.JsTranslationAdapter;
import org.eclipse.wst.jsdt.web.ui.internal.Logger;
import org.eclipse.wst.sse.core.StructuredModelManager;
import org.eclipse.wst.sse.core.internal.provisional.IModelManager;
import org.eclipse.wst.sse.core.internal.provisional.INodeAdapter;
import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument;
import org.eclipse.wst.sse.ui.internal.contentoutline.IJFaceNodeAdapter;
import org.eclipse.wst.xml.core.internal.document.NodeImpl;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMDocument;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel;
import org.eclipse.wst.xml.ui.internal.contentoutline.JFaceNodeAdapterFactory;
import org.w3c.dom.Node;
/**
*
* Provisional API: This class/interface is part of an interim API that is still under development and expected to
* change significantly before reaching stability. It is being made available at this early stage to solicit feedback
* from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
* (repeatedly) as the API evolves.
*/
public class JFaceNodeAdapterForJs extends JFaceNodeAdapterForHTML {
public JFaceNodeAdapterForJs(JFaceNodeAdapterFactory adapterFactory) {
super(adapterFactory);
}
private IJavaScriptUnit lazyCu;
private IProgressMonitor monitor;
private JavaScriptElementLabelProvider javaElementLabelProvider;
public Object[] getChildren(Object object) {
if (object instanceof IJavaScriptElement) {
return getJavaElementProvider().getChildren(object);
}
if (object instanceof IJavaWebNode) {
JavaElement enclosedElement = (JavaElement) ((IJavaWebNode) object).getJavaElement();
if (enclosedElement != null) {
try {
IJavaScriptElement[] children = enclosedElement.getChildren();
if (children == null) {
return new IJavaScriptElement[0];
}
Object[] nodes = new Object[children.length];
Node parent = ((IJavaWebNode) object).getParentNode();
for (int i = 0; i < children.length; i++) {
// int htmllength = ((SourceRefElement) (children[i])).getSourceRange().getLength();
// int htmloffset = ((SourceRefElement) (children[i])).getSourceRange().getOffset();
IJavaScriptElement javaElement = children[i];
ISourceRange range = null;
if (javaElement instanceof Member) {
range = ((IMember) javaElement).getNameRange();
} else {
range = ((ISourceReference) javaElement).getSourceRange();
}
int htmllength = range.getLength();
int htmloffset = range.getOffset();
Position position = new Position(htmloffset, htmllength);
nodes[i] = getJsNode(parent, javaElement, position);
}
return nodes;
} catch (JavaScriptModelException ex) {
}
}
}
Node node = (Node) object;
if (isJSElementParent(node)) {
Object[] results = getJSElementsFromNode(node.getFirstChild(), true);
return filter( results );
}
return super.getChildren(object);
}
/*
* @GINO: Anonymous -- matches anonymous types on the top level
*/
protected boolean matches(Object elementObj) {
if( elementObj instanceof IJavaWebNode ){
IJavaScriptElement element = ((IJavaWebNode)elementObj).getJavaElement();
if (element.getElementType() == IJavaScriptElement.TYPE && element.getParent().getElementType() == IJavaScriptElement.JAVASCRIPT_UNIT ) {
IType type = (IType)element;
try {
return type.isAnonymous();
} catch (JavaScriptModelException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
return false;
}
/*
* @GINO: Anonymous Filter from top level
*
*/
protected Object[] filter(Object[] children) {
boolean initializers= false;
for (int i= 0; i < children.length; i++) {
if (matches(children[i])) {
initializers= true;
break;
}
}
if (!initializers)
return children;
Vector v= new Vector();
for (int i= 0; i < children.length; i++) {
if (matches(children[i]))
continue;
v.addElement(children[i]);
}
Object[] result= new Object[v.size()];
v.copyInto(result);
return result;
}
public Object[] getElements(Object object) {
if (object instanceof IJavaScriptElement) {
return getJavaElementProvider().getElements(object);
}
return super.getElements(object);
}
private JavaScriptElementLabelProvider getJavaElementLabelProvider() {
if(javaElementLabelProvider==null) {
javaElementLabelProvider = new JavaScriptElementLabelProvider();
}
return javaElementLabelProvider;
}
private StandardJavaScriptElementContentProvider getJavaElementProvider() {
return new StandardJavaScriptElementContentProvider(true);
}
private Object[] filterChildrenForRange(IJavaScriptElement[] allChildren, Node node) {
int javaPositionEnd = ((NodeImpl) node).getEndOffset();
int javaPositionStart = ((NodeImpl) node).getStartOffset();
javaPositionStart = getTranslation(node).getJavaScriptOffset(((NodeImpl) node).getStartOffset());
if (javaPositionStart < 0)
javaPositionStart = ((NodeImpl) node).getStartOffset();
javaPositionEnd = getTranslation(node).getJavaScriptOffset(((NodeImpl) node).getEndOffset() - 1);
if (javaPositionEnd < 0)
javaPositionEnd = ((NodeImpl) node).getEndOffset();
List validChildren = new ArrayList();
for (int i = 0; i < allChildren.length; i++) {
ISourceRange range = null;
if (allChildren[i] instanceof Member) {
try {
range = ((Member) allChildren[i]).getNameRange();
} catch (JavaScriptModelException e) {
Logger.logException("Error getting range of Member child.", e);
}
} else if (allChildren[i] instanceof SourceRefElement) {
try {
range = ((SourceRefElement)allChildren[i] ).getSourceRange();
} catch (JavaScriptModelException e) {
Logger.logException("Error getting range of SourceRefElement child.", e);
}
}
if (range != null && javaPositionStart <= range.getOffset() &&
(range.getLength() + range.getOffset()) <= (javaPositionEnd)) {
int htmlLength = range.getLength();
int htmlOffset = range.getOffset();
if (htmlLength >= 0 && htmlOffset >= 0) {
Position position = new Position(htmlOffset, htmlLength);
validChildren.add(getJsNode(node.getParentNode(), allChildren[i], position));
}
}
}
Object[] result = new Object[0];
if (validChildren.size() > 0) {
result = validChildren.toArray();
}
if (result == null || result.length == 0) {
return new IJavaScriptElement[0];
}
return result;
}
private synchronized Object[] getJSElementsFromNode(Node node, boolean ensureConsistant) {
// int startOffset = 0;
// int endOffset = 0;
// int type = node.getNodeType();
Object[] result = null;
//JsTranslation translation = null;
if (node.getNodeType() == Node.TEXT_NODE && (node instanceof NodeImpl)) {
// startOffset = ((NodeImpl) node).getStartOffset();
// endOffset = ((NodeImpl) node).getEndOffset();
IJavaScriptUnit unit = getLazyCu(node);
// Genuitec Begin Fix 6149: Exception opening external HTML file
if (unit == null) {
return new Object[0];
}
// Genuitec End Fix 6149: Exception opening external HTML file
try {
if(ensureConsistant) unit.makeConsistent(getProgressMonitor());
} catch (JavaScriptModelException ex1) {
// TODO Auto-generated catch block
ex1.printStackTrace();
}
try {
result = filterChildrenForRange(unit.getChildren(),node);
} catch (JavaScriptModelException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
result = new Object[0];
lazyCu=null;
}
//translation = getTranslation(node);
//result = translation.getAllElementsInJsRange(startOffset, endOffset);
}
return result;
}
private IProgressMonitor getProgressMonitor() {
if(monitor==null) {
monitor = new NullProgressMonitor();
}
return monitor;
}
private Object getJsNode(Node parent, IJavaScriptElement root, Position position) {
JsJfaceNode instance = null;
if (root.getElementType() == IJavaScriptElement.TYPE) {
instance = new JsJfaceNode(parent, root, position, ((SourceRefElement) root).getElementName());
} else if (root.getElementType() == IJavaScriptElement.FIELD) {
/* Field refrence, possibly to a type may need to implement later */
instance = new JsJfaceNode(parent, root, position);
} else {
instance = new JsJfaceNode(parent, root, position);
}
String name = getJavaElementLabelProvider().getText(root);
instance.setName(name);
// ((JsJfaceNode)instance).setAdapterRegistry(registry);
INodeAdapter adapter = (instance).getAdapterFor(IJFaceNodeAdapter.class);
if (!(adapter instanceof JFaceNodeAdapterForJs)) {
(instance).removeAdapter(adapter);
(instance).addAdapter(this);
}
return instance;
}
public Image getLabelImage(Object node) {
if (node instanceof JsJfaceNode) {
return ((JsJfaceNode) node).getImage();
}
if (node instanceof IJavaScriptElement) {
return getJavaElementLabelProvider().getImage(node);
}
return super.getLabelImage(node);
}
public String getLabelText(Object node) {
// if (node instanceof JsJfaceNode) {
// return ((JsJfaceNode) node).getName();
// }
if (node instanceof IJavaScriptElement) {
return getJavaElementLabelProvider().getText(node);
}
return super.getLabelText(node);
}
public Object getParent(Object element) {
if (element instanceof IJavaScriptElement) {
return getJavaElementProvider().getParent(element);
}
return super.getParent(element);
}
private IJavaScriptUnit getLazyCu(Node node) {
if(lazyCu==null) {
IJsTranslation tran = getTranslation(node);
if(tran== null) return null;
lazyCu = tran.getCompilationUnit();
if(lazyCu==null) return null;
try {
lazyCu.makeConsistent( new NullProgressMonitor() );
} catch (JavaScriptModelException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return lazyCu;
}
private IJsTranslation getTranslation(Node node) {
IStructuredModel model = null;
IModelManager modelManager = StructuredModelManager.getModelManager();
IDOMDocument xmlDoc = null;
try {
if (modelManager != null) {
IStructuredDocument doc = ((NodeImpl) node).getStructuredDocument();
model = modelManager.getExistingModelForRead(doc);
// model = modelManager.getModelForRead(doc);
}
IDOMModel domModel = (IDOMModel) model;
if(domModel == null) return null;
xmlDoc = domModel.getDocument();
} catch (Exception e) {
Logger.logException(e);
} finally {
if (model != null) {
// model.changedModel();
model.releaseFromRead();
}
}
if (xmlDoc == null) {
return null;
}
JsTranslationAdapter translationAdapter = (JsTranslationAdapter) xmlDoc.getAdapterFor(IJsTranslation.class);
return translationAdapter.getJsTranslation(true);
}
public boolean hasChildren(Object object) {
if (object instanceof IJavaScriptElement) {
return getJavaElementProvider().hasChildren(object);
}
Node node = (Node) object;
if (node instanceof IJavaWebNode) {
return ((IJavaWebNode) object).hasChildren();
}
if (isJSElementParent(node)) {
Object[] nodes = getJSElementsFromNode(node.getFirstChild(),false);
boolean hasElements = (nodes != null && nodes.length > 0);
return hasElements;
}
return super.hasChildren(object);
}
private boolean isJSElementParent(Node node) {
return (node.hasChildNodes() && node.getNodeName().equalsIgnoreCase("script")); //$NON-NLS-1$
}
}