| 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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