WritableModelProperty.java

package jetbrains.mps.nodeEditor.cells.jetpad;

/*Generated by MPS */

import jetbrains.jetpad.model.property.Property;
import jetbrains.mps.openapi.editor.EditorContext;
import jetbrains.jetpad.model.event.EventHandler;
import jetbrains.jetpad.model.property.PropertyChangeEvent;
import jetbrains.mps.nodeEditor.cells.ChangePropertyEditorCommand;

public abstract class WritableModelProperty<T> extends ReadableModelProperty<T> implements Property<T> {
  private final String myCommandId;
  private final EditorContext myContext;

  public WritableModelProperty(String commandId, EditorContext context) {
    myCommandId = commandId;
    myContext = context;
    addHandler(new EventHandler<PropertyChangeEvent<T>>() {
      public void onEvent(PropertyChangeEvent<T> event) {
        safeSetModelPropertyValue(event.getNewValue());
      }
    });
  }

  protected void safeSetModelPropertyValue(final T t) {
    myContext.getRepository().getModelAccess().executeCommand(new ChangePropertyEditorCommand(myContext, myCommandId) {
      protected void doExecute() {
        setModelPropertyValue(t);
      }
    });
  }
  protected abstract void setModelPropertyValue(T value);
}