Examples with TextEdit org.eclipse.text.edits.TextEdit used on opensource projects

Example 11 with TextEdit

use of org.eclipse.text.edits.TextEdit in project che by eclipse.

the class DeleteChangeCreator method addTextEditFromRewrite.

private static TextChange addTextEditFromRewrite(TextChangeManager manager, ICompilationUnit cu, ASTRewrite rewrite) throws CoreException {
    try {
        ITextFileBuffer buffer = RefactoringFileBuffers.acquire(cu);
        TextEdit resultingEdits = rewrite.rewriteAST(buffer.getDocument(), cu.getJavaProject().getOptions(true));
        TextChange textChange = manager.get(cu);
        if (textChange instanceof TextFileChange) {
            TextFileChange tfc = (TextFileChange) textChange;
            tfc.setSaveMode(TextFileChange.KEEP_SAVE_STATE);
        }
        String message = RefactoringCoreMessages.DeleteChangeCreator_1;
        TextChangeCompatibility.addTextEdit(textChange, message, resultingEdits);
        return textChange;
    } finally {
        RefactoringFileBuffers.release(cu);
    }
}

Example 12 with TextEdit

use of org.eclipse.text.edits.TextEdit in project che by eclipse.

the class MoveCuUpdateCreator method addReferenceUpdates.

private void addReferenceUpdates(TextChangeManager changeManager, ICompilationUnit movedUnit, IProgressMonitor pm, RefactoringStatus status) throws JavaModelException, CoreException {
    List<ICompilationUnit> cuList = Arrays.asList(fCus);
    SearchResultGroup[] references = getReferences(movedUnit, pm, status);
    for (int i = 0; i < references.length; i++) {
        SearchResultGroup searchResultGroup = references[i];
        ICompilationUnit referencingCu = searchResultGroup.getCompilationUnit();
        if (referencingCu == null)
            continue;
        boolean simpleReferencesNeedNewImport = simpleReferencesNeedNewImport(movedUnit, referencingCu, cuList);
        SearchMatch[] results = searchResultGroup.getSearchResults();
        for (int j = 0; j < results.length; j++) {
            // TODO: should update type references with results from addImport
            TypeReference reference = (TypeReference) results[j];
            if (reference.isImportDeclaration()) {
                ImportRewrite rewrite = getImportRewrite(referencingCu);
                IImportDeclaration importDecl = (IImportDeclaration) SearchUtils.getEnclosingJavaElement(results[j]);
                if (Flags.isStatic(importDecl.getFlags())) {
                    rewrite.removeStaticImport(importDecl.getElementName());
                    addStaticImport(movedUnit, importDecl, rewrite);
                } else {
                    rewrite.removeImport(importDecl.getElementName());
                    rewrite.addImport(createStringForNewImport(movedUnit, importDecl));
                }
            } else if (reference.isQualified()) {
                TextChange textChange = changeManager.get(referencingCu);
                String changeName = RefactoringCoreMessages.MoveCuUpdateCreator_update_references;
                TextEdit replaceEdit = new ReplaceEdit(reference.getOffset(), reference.getSimpleNameStart() - reference.getOffset(), fNewPackage);
                TextChangeCompatibility.addTextEdit(textChange, changeName, replaceEdit);
            } else if (simpleReferencesNeedNewImport) {
                ImportRewrite importEdit = getImportRewrite(referencingCu);
                String typeName = reference.getSimpleName();
                importEdit.addImport(getQualifiedType(fDestination.getElementName(), typeName));
            }
        }
    }
}

Example 13 with TextEdit

use of org.eclipse.text.edits.TextEdit in project che by eclipse.

the class MultiStateTextFileChange method createTextEditProcessor.

// Copied from TextChange
private TextEditProcessor createTextEditProcessor(ComposableBufferChange change, IDocument document, int flags, boolean preview) {
    List excludes = new ArrayList(0);
    for (final Iterator iterator = change.getGroups().iterator(); iterator.hasNext(); ) {
        TextEditBasedChangeGroup group = (TextEditBasedChangeGroup) iterator.next();
        if (!group.isEnabled())
            excludes.addAll(Arrays.asList(group.getTextEdits()));
    }
    if (preview) {
        fCopier = new TextEditCopier(change.getEdit());
        TextEdit copiedEdit = fCopier.perform();
        boolean keep = getKeepPreviewEdits();
        if (keep)
            flags = flags | TextEdit.UPDATE_REGIONS;
        LocalTextEditProcessor result = new LocalTextEditProcessor(document, copiedEdit, flags);
        result.setExcludes(mapEdits((TextEdit[]) excludes.toArray(new TextEdit[excludes.size()]), fCopier));
        if (!keep)
            fCopier = null;
        return result;
    } else {
        LocalTextEditProcessor result = new LocalTextEditProcessor(document, change.getEdit(), flags | TextEdit.UPDATE_REGIONS);
        result.setExcludes((TextEdit[]) excludes.toArray(new TextEdit[excludes.size()]));
        return result;
    }
}

Example 14 with TextEdit

use of org.eclipse.text.edits.TextEdit in project che by eclipse.

the class MultiStateTextFileChange method getPreviewContent.

/*
	 * @see org.eclipse.ltk.core.refactoring.TextEditBasedChange#getPreviewContent(org.eclipse.ltk.core.refactoring.TextEditBasedChangeGroup[],org.eclipse.jface.text.IRegion,boolean,int,org.eclipse.core.runtime.IProgressMonitor)
	 */
public final String getPreviewContent(final TextEditBasedChangeGroup[] groups, final IRegion region, final boolean expand, final int surround, final IProgressMonitor monitor) throws CoreException {
    final Set cachedGroups = new HashSet(Arrays.asList(groups));
    final IDocument document = new Document(getCurrentDocument(monitor).get());
    // Marks the region in the document to be previewed
    final Position range = new Position(region.getOffset(), region.getLength());
    try {
        ComposableBufferChange change = null;
        final TextEditBasedChangeGroup[] changedGroups = getChangeGroups();
        LinkedList compositeUndo = new LinkedList();
        for (int index = 0; index < fChanges.size(); index++) {
            change = (ComposableBufferChange) fChanges.get(index);
            TextEdit copy = null;
            try {
                // Have to use a copy
                fCopier = new TextEditCopier(change.getEdit());
                copy = fCopier.perform();
                // Create a mapping from the copied edits to its originals
                final Map originalMap = new HashMap();
                for (final Iterator outer = change.getGroups().iterator(); outer.hasNext(); ) {
                    final ComposableBufferChangeGroup group = (ComposableBufferChangeGroup) outer.next();
                    for (final Iterator inner = group.getCachedEdits().iterator(); inner.hasNext(); ) {
                        final TextEdit originalEdit = (TextEdit) inner.next();
                        final TextEdit copiedEdit = fCopier.getCopy(originalEdit);
                        if (copiedEdit != null)
                            originalMap.put(copiedEdit, originalEdit);
                        else
                            //$NON-NLS-1$
                            RefactoringCorePlugin.logErrorMessage("Could not find a copy for the indexed text edit " + originalEdit.toString());
                    }
                }
                final ComposableBufferChangeGroup[] currentGroup = { null };
                final TextEdit[] currentEdit = { null };
                // Text edit processor which sets the change group and
                // current edit when processing
                final TextEditProcessor processor = new TextEditProcessor(document, copy, TextEdit.NONE) {

                    protected final boolean considerEdit(final TextEdit edit) {
                        final TextEdit originalEdit = (TextEdit) originalMap.get(edit);
                        if (originalEdit != null) {
                            currentEdit[0] = originalEdit;
                            boolean found = false;
                            for (int offset = 0; offset < changedGroups.length && !found; offset++) {
                                final ComposableBufferChangeGroup group = (ComposableBufferChangeGroup) changedGroups[offset];
                                if (group.containsEdit(originalEdit)) {
                                    currentGroup[0] = group;
                                    found = true;
                                }
                            }
                            if (!found)
                                currentGroup[0] = null;
                        } else if (!(edit instanceof MultiTextEdit)) {
                            //$NON-NLS-1$
                            RefactoringCorePlugin.logErrorMessage("Could not find the original of the copied text edit " + edit.toString());
                        }
                        return true;
                    }
                };
                final LinkedList eventUndos = new LinkedList();
                // Listener to record the undos on the document (offsets
                // relative to the document event)
                final IDocumentListener listener = new IDocumentListener() {

                    public final void documentAboutToBeChanged(final DocumentEvent event) {
                        final ComposableUndoEdit edit = new ComposableUndoEdit();
                        edit.setGroup(currentGroup[0]);
                        edit.setOriginal(currentEdit[0]);
                        edit.setUndo(createUndoEdit(document, event.getOffset(), event.getLength(), event.getText()));
                        eventUndos.addFirst(edit);
                    }

                    public final void documentChanged(final DocumentEvent event) {
                    // Do nothing
                    }
                };
                try {
                    // Record undos in LIFO order
                    document.addDocumentListener(listener);
                    processor.performEdits();
                } finally {
                    document.removeDocumentListener(listener);
                }
                compositeUndo.addFirst(eventUndos);
            } finally {
                fCopier = null;
            }
        }
        final IPositionUpdater positionUpdater = new IPositionUpdater() {

            public final void update(final DocumentEvent event) {
                final int eventOffset = event.getOffset();
                final int eventLength = event.getLength();
                final int eventOldEndOffset = eventOffset + eventLength;
                final String eventText = event.getText();
                final int eventNewLength = eventText == null ? 0 : eventText.length();
                final int eventNewEndOffset = eventOffset + eventNewLength;
                final int deltaLength = eventNewLength - eventLength;
                try {
                    final Position[] positions = event.getDocument().getPositions(COMPOSABLE_POSITION_CATEGORY);
                    for (int index = 0; index < positions.length; index++) {
                        final Position position = positions[index];
                        if (position.isDeleted())
                            continue;
                        final int offset = position.getOffset();
                        final int length = position.getLength();
                        final int end = offset + length;
                        if (offset > eventOldEndOffset) {
                            // position comes way after change - shift
                            position.setOffset(offset + deltaLength);
                        } else if (end < eventOffset) {
                        // position comes way before change - leave
                        // alone
                        } else if (offset == eventOffset) {
                        // leave alone, since the edits are overlapping
                        } else if (offset <= eventOffset && end >= eventOldEndOffset) {
                            // event completely internal to the position
                            // -
                            // adjust length
                            position.setLength(length + deltaLength);
                        } else if (offset < eventOffset) {
                            // event extends over end of position - include
                            // the
                            // replacement text into the position
                            position.setLength(eventNewEndOffset - offset);
                        } else if (end > eventOldEndOffset) {
                            // event extends from before position into it -
                            // adjust
                            // offset and length, including the replacement
                            // text into
                            // the position
                            position.setOffset(eventOffset);
                            int deleted = eventOldEndOffset - offset;
                            position.setLength(length - deleted + eventNewLength);
                        } else {
                            // event comprises the position - keep it at the
                            // same
                            // position, but always inside the replacement
                            // text
                            int newOffset = Math.min(offset, eventNewEndOffset);
                            int newEndOffset = Math.min(end, eventNewEndOffset);
                            position.setOffset(newOffset);
                            position.setLength(newEndOffset - newOffset);
                        }
                    }
                } catch (BadPositionCategoryException exception) {
                // ignore and return
                }
            }
        };
        try {
            document.addPositionCategory(COMPOSABLE_POSITION_CATEGORY);
            document.addPositionUpdater(positionUpdater);
            // Apply undos in LIFO order to get to the original document
            // Track the undos of edits which are in change groups to be
            // previewed and insert
            // Undo edits for them (corresponding to the linearized net
            // effect on the original document)
            final LinkedList undoQueue = new LinkedList();
            for (final Iterator outer = compositeUndo.iterator(); outer.hasNext(); ) {
                for (final Iterator inner = ((List) outer.next()).iterator(); inner.hasNext(); ) {
                    final ComposableUndoEdit edit = (ComposableUndoEdit) inner.next();
                    final ReplaceEdit undo = edit.getUndo();
                    final int offset = undo.getOffset();
                    final int length = undo.getLength();
                    final String text = undo.getText();
                    ComposableEditPosition position = new ComposableEditPosition();
                    if (cachedGroups.contains(edit.getGroup())) {
                        if (text == null || text.equals("")) {
                            //$NON-NLS-1$
                            position.offset = offset;
                            if (length != 0) {
                                // Undo is a delete, create final insert
                                // edit
                                position.length = 0;
                                position.setText(edit.getOriginalText());
                            } else
                                //$NON-NLS-1$
                                RefactoringCorePlugin.logErrorMessage("Dubious undo edit found: " + undo.toString());
                        } else if (length == 0) {
                            position.offset = offset;
                            // Undo is an insert, create final delete
                            // edit
                            //$NON-NLS-1$
                            position.setText("");
                            position.length = text.length();
                        } else {
                            // Undo is a replace, create final replace edit
                            position.offset = offset;
                            position.length = length;
                            position.setText(edit.getOriginalText());
                        }
                        document.addPosition(COMPOSABLE_POSITION_CATEGORY, position);
                    }
                    position = new ComposableEditPosition();
                    position.offset = undo.getOffset();
                    position.length = undo.getLength();
                    position.setText(undo.getText());
                    undoQueue.add(position);
                }
                for (final Iterator iterator = undoQueue.iterator(); iterator.hasNext(); ) {
                    final ComposableEditPosition position = (ComposableEditPosition) iterator.next();
                    document.replace(position.offset, position.length, position.getText());
                    iterator.remove();
                }
            }
            // Use a simple non deleting position updater for the range
            final IPositionUpdater markerUpdater = new NonDeletingPositionUpdater(MARKER_POSITION_CATEGORY);
            try {
                final Position[] positions = document.getPositions(COMPOSABLE_POSITION_CATEGORY);
                document.addPositionCategory(MARKER_POSITION_CATEGORY);
                document.addPositionUpdater(markerUpdater);
                document.addPosition(MARKER_POSITION_CATEGORY, range);
                for (int index = 0; index < positions.length; index++) {
                    final ComposableEditPosition position = (ComposableEditPosition) positions[index];
                    //$NON-NLS-1$
                    document.replace(position.offset, position.length, position.getText() != null ? position.getText() : "");
                }
            } catch (BadPositionCategoryException exception) {
                RefactoringCorePlugin.log(exception);
            } finally {
                document.removePositionUpdater(markerUpdater);
                try {
                    document.removePosition(MARKER_POSITION_CATEGORY, range);
                    document.removePositionCategory(MARKER_POSITION_CATEGORY);
                } catch (BadPositionCategoryException exception) {
                // Cannot happen
                }
            }
        } catch (BadPositionCategoryException exception) {
            RefactoringCorePlugin.log(exception);
        } finally {
            document.removePositionUpdater(positionUpdater);
            try {
                document.removePositionCategory(COMPOSABLE_POSITION_CATEGORY);
            } catch (BadPositionCategoryException exception) {
                RefactoringCorePlugin.log(exception);
            }
        }
        return getContent(document, new Region(range.offset, range.length), expand, surround);
    } catch (MalformedTreeException exception) {
        RefactoringCorePlugin.log(exception);
    } catch (BadLocationException exception) {
        RefactoringCorePlugin.log(exception);
    }
    return getPreviewDocument(monitor).get();
}

Example 15 with TextEdit

use of org.eclipse.text.edits.TextEdit in project che by eclipse.

the class CUCorrectionProposal method createTextChange.

/**
	 * Creates the text change for this proposal.
	 * This method is only called once and only when no text change has been passed in
	 * {@link #CUCorrectionProposal(String, ICompilationUnit, TextChange, int, Image)}.
	 *
	 * @return the created text change
	 * @throws CoreException if the creation of the text change failed
	 */
protected TextChange createTextChange() throws CoreException {
    ICompilationUnit cu = getCompilationUnit();
    String name = getName();
    TextChange change;
    if (!cu.getResource().exists()) {
        String source;
        try {
            source = cu.getSource();
        } catch (JavaModelException e) {
            JavaPlugin.log(e);
            // empty
            source = new String();
        }
        Document document = new Document(source);
        document.setInitialLineDelimiter(StubUtility.getLineDelimiterUsed(cu));
        change = new DocumentChange(name, document);
    } else {
        CompilationUnitChange cuChange = new CompilationUnitChange(name, cu);
        cuChange.setSaveMode(TextFileChange.LEAVE_DIRTY);
        change = cuChange;
    }
    TextEdit rootEdit = new MultiTextEdit();
    change.setEdit(rootEdit);
    // initialize text change
    IDocument document = change.getCurrentDocument(new NullProgressMonitor());
    addEdits(document, rootEdit);
    return change;
}