| 1 | package de.ugoe.cs.swe.bnftools.ui.formatter;
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| 2 |
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| 3 | import org.eclipse.core.resources.IFile;
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| 4 | import org.eclipse.core.runtime.CoreException;
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| 5 | import org.eclipse.core.runtime.IProgressMonitor;
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| 6 | import org.eclipse.core.runtime.OperationCanceledException;
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| 7 | import org.eclipse.jface.text.BadLocationException;
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| 8 | import org.eclipse.ltk.core.refactoring.Change;
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| 9 | import org.eclipse.ltk.core.refactoring.CompositeChange;
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| 10 | import org.eclipse.ltk.core.refactoring.RefactoringStatus;
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| 11 | import org.eclipse.ltk.core.refactoring.TextFileChange;
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| 12 | import org.eclipse.ltk.core.refactoring.participants.CheckConditionsContext;
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| 13 | import org.eclipse.ltk.core.refactoring.participants.RefactoringParticipant;
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| 14 | import org.eclipse.ltk.core.refactoring.participants.RefactoringProcessor;
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| 15 | import org.eclipse.ltk.core.refactoring.participants.SharableParticipants;
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| 16 | import org.eclipse.text.edits.MultiTextEdit;
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| 17 | import org.eclipse.text.edits.ReplaceEdit;
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| 18 | import org.eclipse.text.edits.TextEditGroup;
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| 19 | import org.eclipse.xtext.parsetree.AbstractNode;
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| 20 | import org.eclipse.xtext.parsetree.CompositeNode;
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| 21 | import org.eclipse.xtext.ui.editor.XtextEditor;
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| 22 | import org.eclipse.xtext.ui.editor.model.XtextDocument;
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| 23 |
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| 24 | import de.ugoe.cs.swe.bnftools.ebnf.Rule;
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| 25 |
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| 26 | public class FormatterProcessor extends RefactoringProcessor {
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| 27 | IFile file;
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| 28 | private CompositeNode rootNode;
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| 29 | private XtextDocument document;
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| 30 |
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| 31 | // ----------------------------------------------------------------------------------------------------
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| 32 |
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| 33 | public FormatterProcessor(XtextEditor editor, CompositeNode root, XtextDocument doc) {
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| 34 | file = (IFile) editor.getEditorInput().getAdapter(IFile.class);
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| 35 | this.rootNode = root;
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| 36 | this.document = doc;
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| 37 | }
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| 38 |
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| 39 | // ----------------------------------------------------------------------------------------------------
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| 40 |
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| 41 | @Override
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| 42 | public Object[] getElements() {
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| 43 | return null;
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| 44 | }
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| 45 |
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| 46 | // ----------------------------------------------------------------------------------------------------
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| 47 |
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| 48 | @Override
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| 49 | public String getIdentifier() {
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| 50 | return "Formatter Processor";
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| 51 | }
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| 52 |
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| 53 | // ----------------------------------------------------------------------------------------------------
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| 54 |
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| 55 | @Override
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| 56 | public String getProcessorName() {
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| 57 | return "Formatter Processor";
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| 58 | }
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| 59 |
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| 60 | // ----------------------------------------------------------------------------------------------------
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| 61 |
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| 62 | @Override
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| 63 | public boolean isApplicable() throws CoreException {
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| 64 | return (rootNode != null);
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| 65 | }
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| 66 |
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| 67 | // ----------------------------------------------------------------------------------------------------
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| 68 |
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| 69 | @Override
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| 70 | public RefactoringStatus checkInitialConditions(IProgressMonitor pm)
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| 71 | throws CoreException, OperationCanceledException {
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| 72 |
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| 73 | RefactoringStatus status = new RefactoringStatus();
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| 74 |
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| 75 | if (rootNode == null)
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| 76 | status.addFatalError("Root node is null!");
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| 77 |
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| 78 | return status;
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| 79 | }
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| 80 |
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| 81 | // ----------------------------------------------------------------------------------------------------
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| 82 |
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| 83 | @Override
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| 84 | public RefactoringStatus checkFinalConditions(IProgressMonitor pm,
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| 85 | CheckConditionsContext context) throws CoreException,
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| 86 | OperationCanceledException {
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| 87 |
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| 88 | return checkInitialConditions(pm);
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| 89 | }
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| 90 |
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| 91 | // ----------------------------------------------------------------------------------------------------
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| 92 |
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| 93 | @Override
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| 94 | public Change createChange(IProgressMonitor pm) throws CoreException,
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| 95 | OperationCanceledException {
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| 96 | CompositeChange compositeChange = new CompositeChange("Custom formatter");
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| 97 | pm.beginTask("Custom formatter", 2);
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| 98 |
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| 99 | MultiTextEdit multiEdit = new MultiTextEdit();
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| 100 | TextFileChange fileChange = new TextFileChange("Custom formatter text file change", file);
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| 101 | fileChange.setEdit(multiEdit);
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| 102 | fileChange.setTextType("bnf");
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| 103 | compositeChange.add(fileChange);
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| 104 |
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| 105 | FormatterConfig config = new FormatterConfig();
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| 106 | EbnfFormatterVisitor visitor = new EbnfFormatterVisitor(config);
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| 107 | visitor.accept(rootNode.getElement());
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| 108 |
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| 109 | ReplaceEdit replaceEdit = new ReplaceEdit(0, document.getLength(), visitor.getBuf().toString());
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| 110 | multiEdit.addChild(replaceEdit);
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| 111 |
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| 112 | return compositeChange;
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| 113 |
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| 114 | }
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| 115 |
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| 116 | // ----------------------------------------------------------------------------------------------------
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| 117 |
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| 118 | @Override
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| 119 | public RefactoringParticipant[] loadParticipants(RefactoringStatus status,
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| 120 | SharableParticipants sharedParticipants) throws CoreException {
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| 121 | return null;
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| 122 | }
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| 123 |
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| 124 | } |
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