| /******************************************************************************* |
| * Copyright (c) 2004, 2010 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.ant.internal.ui.editor.templates; |
| |
| import org.eclipse.ant.internal.ui.model.IAntModel; |
| |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.Document; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.Position; |
| import org.eclipse.jface.text.TextUtilities; |
| import org.eclipse.jface.text.templates.DocumentTemplateContext; |
| import org.eclipse.jface.text.templates.Template; |
| import org.eclipse.jface.text.templates.TemplateBuffer; |
| import org.eclipse.jface.text.templates.TemplateContextType; |
| import org.eclipse.jface.text.templates.TemplateException; |
| import org.eclipse.jface.text.templates.TemplateTranslator; |
| |
| public class AntContext extends DocumentTemplateContext { |
| |
| private IAntModel fAntModel; |
| |
| public AntContext(TemplateContextType type, IDocument document, IAntModel model, Position position) { |
| super(type, document, position); |
| fAntModel = model; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.text.templates.TemplateContext#evaluate(org.eclipse.jface.text.templates.Template) |
| */ |
| @Override |
| public TemplateBuffer evaluate(Template template) throws BadLocationException, TemplateException { |
| if (!canEvaluate(template)) |
| return null; |
| |
| TemplateBuffer templateBuffer = createTemplateBuffer(template); |
| |
| if (templateBuffer == null) { |
| return null; |
| } |
| |
| // TODO Not enabled see bug 55356 |
| // if (false && AntUIPlugin.getDefault().getPreferenceStore().getBoolean(AntEditorPreferenceConstants.TEMPLATES_USE_CODEFORMATTER)) { |
| // FormattingPreferences prefs = new FormattingPreferences(); |
| // XmlFormatter.format(templateBuffer, this, prefs); |
| // } |
| return templateBuffer; |
| } |
| |
| private TemplateBuffer createTemplateBuffer(Template template) throws BadLocationException, TemplateException { |
| String lineDelimiter = TextUtilities.getDefaultLineDelimiter(getDocument()); |
| IDocument document = new Document(template.getPattern()); |
| convertLineDelimiters(document, lineDelimiter); |
| |
| TemplateTranslator translator = new TemplateTranslator(); |
| TemplateBuffer buffer = translator.translate(document.get()); |
| |
| getContextType().resolve(buffer, this); |
| |
| return buffer; |
| } |
| |
| private static void convertLineDelimiters(IDocument document, String defaultLineDelimiter) throws BadLocationException { |
| int lines = document.getNumberOfLines(); |
| for (int line = 0; line < lines; line++) { |
| IRegion region = document.getLineInformation(line); |
| String lineDelimiter = document.getLineDelimiter(line); |
| if (lineDelimiter != null) |
| document.replace(region.getOffset() + region.getLength(), lineDelimiter.length(), defaultLineDelimiter); |
| } |
| } |
| |
| /** |
| * @return Returns the AntModel. |
| */ |
| public IAntModel getAntModel() { |
| return fAntModel; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.text.templates.DocumentTemplateContext#getEnd() |
| */ |
| @Override |
| public int getEnd() { |
| int start = getCompletionOffset(); |
| int length = getCompletionLength(); |
| |
| IDocument document = getDocument(); |
| if (start > 0 && document.get().charAt(start - 1) == '<' && document.getLength() > 1) { |
| length++; |
| } |
| |
| int end = getCompletionOffset() + length; |
| |
| try { |
| while (start != end && Character.isWhitespace(document.getChar(end - 1))) |
| end--; |
| } |
| catch (BadLocationException e) { |
| // Return latest valid end |
| } |
| |
| return end; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.text.templates.DocumentTemplateContext#getStart() |
| */ |
| @Override |
| public int getStart() { |
| int replacementOffset = getCompletionOffset(); |
| if (replacementOffset > 0 && getDocument().get().charAt(replacementOffset - 1) == '<') { |
| replacementOffset--; |
| } |
| return replacementOffset; |
| } |
| } |