ClickableRenderer (vaadin-all 7.7.46 API)

java.lang.Object
- com.vaadin.client.renderers.ComplexRenderer<T>
- - com.vaadin.client.renderers.WidgetRenderer<T,W>
  - - com.vaadin.client.renderers.ClickableRenderer<T,W>

Type Parameters:

T - the presentation (column) type

W - the widget type

All Implemented Interfaces:

com.google.gwt.event.dom.client.ClickHandler, com.google.gwt.event.shared.EventHandler, Renderer<T>

Direct Known Subclasses:

ButtonRenderer, ImageRenderer, MultiSelectionRenderer
```
public abstract class ClickableRenderer<T,W extends com.google.gwt.user.client.ui.Widget>
extends WidgetRenderer<T,W>
implements com.google.gwt.event.dom.client.ClickHandler
```
An abstract superclass for renderers that render clickable widgets. Click handlers can be added to a renderer to listen to click events emitted by all widgets rendered by the renderer.

Since:

7.4

Author:

Vaadin Ltd

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`ClickableRenderer.RendererClickEvent<R>`	An event fired when a widget rendered by a ClickableWidgetRenderer subclass is clicked.
`static interface`	`ClickableRenderer.RendererClickHandler<R>`	A handler for `renderer click events`.

Constructor Summary

Constructors
Constructor Description

ClickableRenderer()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`com.google.web.bindery.event.shared.HandlerRegistration`	`addClickHandler(ClickableRenderer.RendererClickHandler<?> handler)`	Adds a click handler to this button renderer.
`abstract W`	`createWidget()`	Creates a widget to attach to a cell.
`void`	`onClick(com.google.gwt.event.dom.client.ClickEvent event)`

Methods inherited from class com.vaadin.client.renderers.WidgetRenderer
getWidget, getWidget, init, render, render

Methods inherited from class com.vaadin.client.renderers.ComplexRenderer
destroy, destroy, getConsumedEvents, onActivate, onBrowserEvent, setContentVisible

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ClickableRenderer
```
public ClickableRenderer()
```
- Method Detail
  - createWidget
```
public abstract W createWidget()
```
    Creates a widget to attach to a cell. The widgets will be attached to the cell after the cell element has been attached to DOM.
    Implementation note: It is the implementing method's responsibility to add this as a click handler of the returned widget, or a widget nested therein, in order to make click events propagate properly to handlers registered via addClickHandler.
    
    Specified by:
    
    createWidget in class WidgetRenderer<T,W extends com.google.gwt.user.client.ui.Widget>
    
    Returns:
    
    widget to attach to a cell. All returned instances should be new widget instances without a parent.
  - addClickHandler
```
public com.google.web.bindery.event.shared.HandlerRegistration addClickHandler(ClickableRenderer.RendererClickHandler<?> handler)
```
    Adds a click handler to this button renderer. The handler is invoked every time one of the widgets rendered by this renderer is clicked.
    Note that the row type of the click handler must match the row type of the containing Grid.
    
    Parameters:
    
    handler - the click handler to be added
  - onClick
```
public void onClick(com.google.gwt.event.dom.client.ClickEvent event)
```
    Specified by:
    
    onClick in interface com.google.gwt.event.dom.client.ClickHandler