Examples with IUndoHandler org.freeplane.core.undo.IUndoHandler used on opensource projects

Example 21 with IUndoHandler

use of org.freeplane.core.undo.IUndoHandler in project freeplane by freeplane.

the class ModeController method undoableRemoveExtensions.

public void undoableRemoveExtensions(final Object key, final NodeModel from, final NodeModel which) {
    final MapModel map = from.getMap();
    if (map == null) {
        removeExtensions(key, from, which);
        return;
    }
    final IUndoHandler undoHandler = map.getExtension(IUndoHandler.class);
    if (undoHandler == null) {
        removeExtensions(key, from, which);
        return;
    }
    final NodeModel backup = new NodeModel(null);
    copyExtensions(key, from, backup);
    final IActor actor = new IActor() {

        public void undo() {
            copyExtensions(key, backup, from);
            getMapController().nodeChanged(from);
        }

        public String getDescription() {
            return "undoableCopyExtensions";
        }

        public void act() {
            removeExtensions(key, from, which);
            getMapController().nodeChanged(from);
        }
    };
    execute(actor, map);
}