/*******************************************************************************
* Copyright (c) 2001, 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
*
*******************************************************************************/
package org.eclipse.wst.jsdt.web.ui.internal.java.refactoring;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.ITextSelection;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.ui.texteditor.ITextEditor;
import org.eclipse.wst.jsdt.core.IJavaScriptElement;
import org.eclipse.wst.jsdt.web.core.javascript.IJsTranslation;
import org.eclipse.wst.jsdt.web.core.javascript.JsTranslationAdapter;
import org.eclipse.wst.sse.core.StructuredModelManager;
import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMDocument;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel;
/**
*
* 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.
*/
class JSPJavaSelectionProvider {
static IJavaScriptElement[] getSelection(ITextEditor textEditor) {
IJavaScriptElement[] elements = null;
IDocument document = textEditor.getDocumentProvider().getDocument(textEditor.getEditorInput());
ISelection selection = textEditor.getSelectionProvider().getSelection();
if (selection instanceof ITextSelection) {
ITextSelection textSelection = (ITextSelection) selection;
// get the JSP translation object for this editor's document
IStructuredModel model = null;
try {
model = StructuredModelManager.getModelManager().getExistingModelForRead(document);
if (model instanceof IDOMModel) {
IDOMModel xmlModel = (IDOMModel) model;
IDOMDocument xmlDoc = xmlModel.getDocument();
JsTranslationAdapter adapter = (JsTranslationAdapter) xmlDoc.getAdapterFor(IJsTranslation.class);
if (adapter != null) {
IJsTranslation translation = adapter.getJsTranslation(true);
elements = translation.getElementsFromJsRange(translation.getJavaScriptOffset(textSelection.getOffset()), translation.getJavaScriptOffset(textSelection.getOffset() + textSelection.getLength()));
}
}
} finally {
if (model != null) {
model.releaseFromRead();
}
}
}
if (elements == null) {
elements = new IJavaScriptElement[0];
}
return elements;
}
}