| /******************************************************************************* |
| * Copyright (c) 2000, 2018 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.ui.refactoring; |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.widgets.Composite; |
| |
| import org.eclipse.core.runtime.CoreException; |
| |
| import org.eclipse.core.resources.IFile; |
| |
| import org.eclipse.jface.preference.IPreferenceStore; |
| import org.eclipse.jface.resource.JFaceResources; |
| |
| import org.eclipse.jface.text.Document; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.Region; |
| import org.eclipse.jface.text.source.SourceViewer; |
| |
| import org.eclipse.ui.IEditorInput; |
| import org.eclipse.ui.part.FileEditorInput; |
| |
| import org.eclipse.ui.texteditor.IDocumentProvider; |
| |
| import org.eclipse.ltk.core.refactoring.RefactoringStatusContext; |
| import org.eclipse.ltk.ui.refactoring.TextStatusContextViewer; |
| |
| import org.eclipse.jdt.core.IClassFile; |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IPackageFragmentRoot; |
| import org.eclipse.jdt.core.ISourceRange; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| import org.eclipse.jdt.internal.corext.refactoring.base.JavaStringStatusContext; |
| import org.eclipse.jdt.internal.corext.refactoring.util.JavaStatusContext; |
| import org.eclipse.jdt.internal.corext.util.Messages; |
| |
| import org.eclipse.jdt.ui.JavaElementLabels; |
| import org.eclipse.jdt.ui.PreferenceConstants; |
| import org.eclipse.jdt.ui.text.JavaSourceViewerConfiguration; |
| import org.eclipse.jdt.ui.text.JavaTextTools; |
| |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| import org.eclipse.jdt.internal.ui.javaeditor.InternalClassFileEditorInput; |
| import org.eclipse.jdt.internal.ui.javaeditor.JavaSourceViewer; |
| |
| |
| public class JavaStatusContextViewer extends TextStatusContextViewer { |
| |
| @Override |
| public void createControl(Composite parent) { |
| super.createControl(parent); |
| final SourceViewer viewer= getSourceViewer(); |
| viewer.unconfigure(); |
| IPreferenceStore store= JavaPlugin.getDefault().getCombinedPreferenceStore(); |
| viewer.configure(new JavaSourceViewerConfiguration(JavaPlugin.getDefault().getJavaTextTools().getColorManager(), store, null, null)); |
| viewer.getControl().setFont(JFaceResources.getFont(PreferenceConstants.EDITOR_TEXT_FONT)); |
| } |
| |
| @Override |
| protected SourceViewer createSourceViewer(Composite parent) { |
| IPreferenceStore store= JavaPlugin.getDefault().getCombinedPreferenceStore(); |
| return new JavaSourceViewer(parent, null, null, false, SWT.LEFT_TO_RIGHT | SWT.V_SCROLL | SWT.H_SCROLL | SWT.MULTI | SWT.FULL_SELECTION, store); |
| } |
| |
| private IPackageFragmentRoot getPackageFragmentRoot(IClassFile file) { |
| |
| IJavaElement element= file.getParent(); |
| while (element != null && element.getElementType() != IJavaElement.PACKAGE_FRAGMENT_ROOT) |
| element= element.getParent(); |
| |
| return (IPackageFragmentRoot) element; |
| } |
| |
| @Override |
| public void setInput(RefactoringStatusContext context) { |
| if (context instanceof JavaStatusContext) { |
| JavaStatusContext jsc= (JavaStatusContext)context; |
| IDocument document= null; |
| if (jsc.isBinary()) { |
| IClassFile file= jsc.getClassFile(); |
| IEditorInput editorInput= new InternalClassFileEditorInput(file); |
| document= getDocument(JavaPlugin.getDefault().getClassFileDocumentProvider(), editorInput); |
| if (document.getLength() == 0) |
| document= new Document(Messages.format(RefactoringMessages.JavaStatusContextViewer_no_source_found0, JavaElementLabels.getElementLabel(getPackageFragmentRoot(file), JavaElementLabels.ALL_DEFAULT))); |
| updateTitle(file); |
| } else { |
| ICompilationUnit cunit= jsc.getCompilationUnit(); |
| if (cunit.isWorkingCopy()) { |
| try { |
| document= newJavaDocument(cunit.getSource()); |
| } catch (JavaModelException e) { |
| // document is null which is a valid input. |
| } |
| } else { |
| IEditorInput editorInput= new FileEditorInput((IFile)cunit.getResource()); |
| document= getDocument(JavaPlugin.getDefault().getCompilationUnitDocumentProvider(), editorInput); |
| } |
| if (document == null) |
| document= new Document(RefactoringMessages.JavaStatusContextViewer_no_source_available); |
| updateTitle(cunit); |
| } |
| setInput(document, createRegion(jsc.getSourceRange())); |
| } else if (context instanceof JavaStringStatusContext) { |
| updateTitle(null); |
| JavaStringStatusContext sc= (JavaStringStatusContext)context; |
| setInput(newJavaDocument(sc.getSource()), createRegion(sc.getSourceRange())); |
| } |
| } |
| |
| private IDocument newJavaDocument(String source) { |
| IDocument result= new Document(source); |
| JavaTextTools textTools= JavaPlugin.getDefault().getJavaTextTools(); |
| textTools.setupJavaDocumentPartitioner(result); |
| return result; |
| } |
| |
| private static IRegion createRegion(ISourceRange range) { |
| return new Region(range.getOffset(), range.getLength()); |
| } |
| |
| private IDocument getDocument(IDocumentProvider provider, IEditorInput input) { |
| if (input == null) |
| return null; |
| IDocument result= null; |
| try { |
| provider.connect(input); |
| result= provider.getDocument(input); |
| } catch (CoreException e) { |
| } finally { |
| provider.disconnect(input); |
| } |
| return result; |
| } |
| } |