Examples with ChangePreviewViewerDescriptor org.eclipse.ltk.internal.ui.refactoring.ChangePreviewViewerDescriptor used on opensource projects

Example 1 with ChangePreviewViewerDescriptor

use of org.eclipse.ltk.internal.ui.refactoring.ChangePreviewViewerDescriptor in project che by eclipse.

the class RefactoringManager method getChangePreview.

/**
     * generate preview for refactoring change
     *
     * @param change
     *         the refactoring change
     * @return refactoring change preview
     * @throws RefactoringException
     *         when refactoring session or change not found.
     */
public ChangePreview getChangePreview(RefactoringChange change) throws RefactoringException {
    RefactoringSession session = getRefactoringSession(change.getSessionId());
    PreviewNode previewNode = session.getChangePreview(change.getChangeId());
    try {
        ChangePreviewViewerDescriptor descriptor = previewNode.getChangePreviewViewerDescriptor();
        if (descriptor != null) {
            IChangePreviewViewer viewer = descriptor.createViewer();
            if (viewer != null) {
                return previewNode.feedInput(viewer, Collections.EMPTY_LIST);
            }
        }
    } catch (CoreException e) {
        throw new RefactoringException(e.getMessage());
    }
    return null;
}