Gridview Vaadin网格进入/离开编辑模式的侦听器?
我想在vaadin网格进入编辑模式时启用/禁用一些复选框 不幸的是,我找不到正确的钩子。我得到的最接近的是SelectionListener,但它与编辑模式不匹配Gridview Vaadin网格进入/离开编辑模式的侦听器?,gridview,vaadin,Gridview,Vaadin,我想在vaadin网格进入编辑模式时启用/禁用一些复选框 不幸的是,我找不到正确的钩子。我得到的最接近的是SelectionListener,但它与编辑模式不匹配 grid.addSelectionListener(new SelectionListener() { ... } ); 当网格进入编辑模式时,有没有办法获取事件?对于Vaadin 8 对于vaadin8您可以扩展网格,并返回一个自定义的编辑器(据我所知,目前还没有实现用于捕获启动事件的侦听器) 此外,您还可以添加cancel&sa
grid.addSelectionListener(new SelectionListener() { ... } );
当网格进入编辑模式时,有没有办法获取事件?对于Vaadin 8
对于vaadin8您可以扩展网格
,并返回一个自定义的编辑器
(据我所知,目前还没有实现用于捕获启动事件的侦听器)
此外,您还可以添加cancel&save侦听器(已由框架实现)以查看编辑器是否已关闭
CustomEditor.java
public class CustomEditor<T> extends EditorImpl<T> {
private EventRouter eventRouter = new EventRouter();
public CustomEditor(PropertySet<T> propertySet) {
super(propertySet);
}
public Registration addStartListener(EditorStartListener<T> listener) {
return eventRouter.addListener(EditorStartEvent.class, listener,
EditorStartListener.class.getDeclaredMethods()[0]);
}
@Override
protected void doEdit(T bean) {
super.doEdit(bean);
fireToggleEvent(bean);
}
private void fireToggleEvent(T bean) {
eventRouter.fireEvent(new EditorStartEvent<>(this, bean));
}
}
@FunctionalInterface
public interface EditorStartListener<T> extends Serializable {
void onEditorStart(EditorStartEvent<T> event);
}
public class EditorStartEvent<T> extends EventObject {
private T bean;
public EditorStartEvent(Editor<T> editor, T bean) {
super(editor);
this.bean = bean;
}
@SuppressWarnings("unchecked")
@Override
public Editor<T> getSource() {
return (Editor<T>) super.getSource();
}
public Grid<T> getGrid() {
return getSource().getGrid();
}
public T getBean() {
return bean;
}
}
public class CustomGrid<T> extends Grid<T> {
private PropertySet<T> propertySet;
public CustomGrid() {
super();
}
// Other constructors omitted for clarity
@Override
protected void setPropertySet(PropertySet<T> propertySet) {
this.propertySet = propertySet;
super.setPropertySet(propertySet);
}
@Override
protected Editor<T> createEditor() {
return new CustomEditor<T>(propertySet);
}
}
public interface EditStartListener extends Serializable {
public static final Method EDIT_START_METHOD = ReflectTools.findMethod(EditStartListener.class, "editStart", EditStartEvent.class);
public void editStart(EditStartEvent event);
}
public class CustomGrid extends Grid {
public void addEditStartListener(EditStartListener listener) {
addListener(EditStartEvent.class, listener, EditStartListener.EDIT_START_METHOD);
}
@Override
protected void doEditItem() {
super.doEditItem();
fireEvent(new EditStartEvent(this));
}
}
EditStartEvent.java
public class EditStartEvent extends Component.Event {
public EditStartEvent(Component source) {
super(source);
}
public Grid getGrid() {
return (Grid) getSource();
}
}
CustomGrid.java
public class CustomEditor<T> extends EditorImpl<T> {
private EventRouter eventRouter = new EventRouter();
public CustomEditor(PropertySet<T> propertySet) {
super(propertySet);
}
public Registration addStartListener(EditorStartListener<T> listener) {
return eventRouter.addListener(EditorStartEvent.class, listener,
EditorStartListener.class.getDeclaredMethods()[0]);
}
@Override
protected void doEdit(T bean) {
super.doEdit(bean);
fireToggleEvent(bean);
}
private void fireToggleEvent(T bean) {
eventRouter.fireEvent(new EditorStartEvent<>(this, bean));
}
}
@FunctionalInterface
public interface EditorStartListener<T> extends Serializable {
void onEditorStart(EditorStartEvent<T> event);
}
public class EditorStartEvent<T> extends EventObject {
private T bean;
public EditorStartEvent(Editor<T> editor, T bean) {
super(editor);
this.bean = bean;
}
@SuppressWarnings("unchecked")
@Override
public Editor<T> getSource() {
return (Editor<T>) super.getSource();
}
public Grid<T> getGrid() {
return getSource().getGrid();
}
public T getBean() {
return bean;
}
}
public class CustomGrid<T> extends Grid<T> {
private PropertySet<T> propertySet;
public CustomGrid() {
super();
}
// Other constructors omitted for clarity
@Override
protected void setPropertySet(PropertySet<T> propertySet) {
this.propertySet = propertySet;
super.setPropertySet(propertySet);
}
@Override
protected Editor<T> createEditor() {
return new CustomEditor<T>(propertySet);
}
}
public interface EditStartListener extends Serializable {
public static final Method EDIT_START_METHOD = ReflectTools.findMethod(EditStartListener.class, "editStart", EditStartEvent.class);
public void editStart(EditStartEvent event);
}
public class CustomGrid extends Grid {
public void addEditStartListener(EditStartListener listener) {
addListener(EditStartEvent.class, listener, EditStartListener.EDIT_START_METHOD);
}
@Override
protected void doEditItem() {
super.doEditItem();
fireEvent(new EditStartEvent(this));
}
}