1 | package de.ugoe.cs.swe.bnftools.ui.formatter;
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2 |
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3 | import org.eclipse.core.commands.AbstractHandler;
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4 | import org.eclipse.core.commands.ExecutionEvent;
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5 | import org.eclipse.core.commands.ExecutionException;
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6 | import org.eclipse.core.runtime.NullProgressMonitor;
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7 | import org.eclipse.emf.ecore.EObject;
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8 | import org.eclipse.jface.dialogs.MessageDialog;
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9 | import org.eclipse.ltk.core.refactoring.Change;
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10 | import org.eclipse.ltk.core.refactoring.PerformChangeOperation;
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11 | import org.eclipse.ltk.core.refactoring.RefactoringCore;
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12 | import org.eclipse.ltk.core.refactoring.RefactoringStatus;
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13 | import org.eclipse.ltk.core.refactoring.participants.ProcessorBasedRefactoring;
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14 | import org.eclipse.swt.widgets.Display;
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15 | import org.eclipse.ui.PlatformUI;
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16 | import org.eclipse.xtext.parsetree.NodeAdapter;
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17 | import org.eclipse.xtext.parsetree.NodeUtil;
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18 | import org.eclipse.xtext.ui.editor.XtextEditor;
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19 | import org.eclipse.xtext.ui.editor.model.XtextDocument;
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20 |
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21 | import de.ugoe.cs.swe.bnftools.utils.RootEObjectFinder;
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22 |
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23 | public class FormatterHandler extends AbstractHandler {
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24 |
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25 | public Object execute(ExecutionEvent event) throws ExecutionException {
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26 | XtextEditor editor = (XtextEditor) PlatformUI.getWorkbench()
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27 | .getActiveWorkbenchWindow().getActivePage().getActiveEditor();
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28 |
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29 | // TODO: better error handling
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30 | if (!(editor.getDocument() instanceof XtextDocument)) {
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31 | return null;
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32 | }
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33 |
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34 | XtextDocument doc = (XtextDocument) editor.getDocument();
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35 | EObject root = doc.readOnly(new RootEObjectFinder());
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36 | NodeAdapter rootNode = NodeUtil.getNodeAdapter(root);
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37 |
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38 | FormatterProcessor processor = new FormatterProcessor(editor,
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39 | rootNode.getParserNode(), doc);
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40 |
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41 | FormatterRefactoring refactoring = new FormatterRefactoring(processor);
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42 |
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43 | try {
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44 | performRefactoring(refactoring);
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45 | } catch (InterruptedException e1) {
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46 | e1.printStackTrace();
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47 | } catch (Exception e) {
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48 | e.printStackTrace();
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49 | }
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50 |
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51 | return null;
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52 | }
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53 |
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54 | public void performRefactoring(ProcessorBasedRefactoring ref)
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55 | throws Exception {
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56 | NullProgressMonitor nullProgressMonitor = new NullProgressMonitor();
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57 | RefactoringStatus status = ref.checkAllConditions(nullProgressMonitor);
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58 | if (status.isOK()) {
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59 | Change change = ref.createChange(nullProgressMonitor);
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60 | change.initializeValidationData(nullProgressMonitor);
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61 | change.setEnabled(true);
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62 | PerformChangeOperation operation = new PerformChangeOperation(
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63 | change);
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64 | operation.setUndoManager(RefactoringCore.getUndoManager(),
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65 | ref.getProcessor().getProcessorName());
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66 | operation.run(nullProgressMonitor);
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67 | change.dispose();
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68 | } else {
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69 | MessageDialog.openInformation(
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70 | Display.getDefault().getActiveShell(), "Custom Formatter",
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71 | status.getMessageMatchingSeverity(status.getSeverity()));
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72 | }
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73 | }
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74 |
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75 | }
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