com.google.gwt.cell.client
Class ActionCell<C>

java.lang.Object
  com.google.gwt.cell.client.AbstractCell<C>
      com.google.gwt.cell.client.ActionCell<C>

Type Parameters:

C - the type that this Cell represents

All Implemented Interfaces:

Cell<C>

public class ActionCell<C>
extends AbstractCell<C>

A cell that renders a button and takes a delegate to perform actions on mouseUp.

Note: This class is new and its interface subject to change.

Nested Class Summary

static interface

ActionCell.Delegate<T> The delegate that will handle events from the cell.

Constructor Summary

ActionCell(java.lang.String message, ActionCell.Delegate<C> delegate)
Construct a new ActionCell.

Method Summary

boolean	consumesEvents() Returns true if the cell is interested in browser events.
java.lang.Void	onBrowserEvent(Element parent, C value, java.lang.Object viewData, NativeEvent event, ValueUpdater<C> valueUpdater) Handle a browser event that took place within the cell.
void	render(C value, java.lang.Object viewData, java.lang.StringBuilder sb) Render a cell as HTML into a StringBuilder, suitable for passing to Element.setInnerHTML(java.lang.String) on a container element.

Methods inherited from class com.google.gwt.cell.client.AbstractCell

dependsOnSelection, setValue

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ActionCell

public ActionCell(java.lang.String message,
                  ActionCell.Delegate<C> delegate)

Construct a new ActionCell.

Parameters:

message - the message to display on the button

delegate - the delegate that will handle events

Method Detail

consumesEvents

public boolean consumesEvents()

Description copied from interface: Cell

Returns true if the cell is interested in browser events. The default implementation returns false.

Specified by:

consumesEvents in interface Cell<C>

Overrides:

consumesEvents in class AbstractCell<C>

onBrowserEvent

public java.lang.Void onBrowserEvent(Element parent,
                                     C value,
                                     java.lang.Object viewData,
                                     NativeEvent event,
                                     ValueUpdater<C> valueUpdater)

Description copied from interface: Cell

Handle a browser event that took place within the cell. The default implementation returns null.

Specified by:

onBrowserEvent in interface Cell<C>

Overrides:

onBrowserEvent in class AbstractCell<C>

Parameters:

parent - the parent Element

value - the value associated with the cell

viewData - the view data associated with the cell, or null

event - the native browser event

valueUpdater - a ValueUpdater, or null

Returns:

a view data object which may be the one passed in or a new object

render

public void render(C value,
                   java.lang.Object viewData,
                   java.lang.StringBuilder sb)

Description copied from interface: Cell

Render a cell as HTML into a StringBuilder, suitable for passing to Element.setInnerHTML(java.lang.String) on a container element.

Specified by:

render in interface Cell<C>

Specified by:

render in class AbstractCell<C>

Parameters:

value - the cell value to be rendered

viewData - view data associated with the cell

sb - the StringBuilder to be written to