HasAttachHandlers

implements HasHandlers

com.google.gwt.event.logical.shared.HasAttachHandlers

Known Indirect Subclasses

AbsolutePanel, AbstractCellTree, AbstractHasData<T>, AbstractPager, Anchor, Audio, Button, ButtonBase, CalendarView, Canvas, CaptionPanel, CellBrowser, CellList<T>, CellPanel, CellTable<T>, and 93 others.

AbsolutePanel	An absolute panel positions all of its children absolutely, allowing them to overlap.
AbstractCellTree	An abstract representation of a tree widget that renders items using `Cell`s.
AbstractHasData<T>	An abstract `Widget` that implements `HasData`.
AbstractPager	An abstract pager that exposes many methods useful for paging.
Anchor	A widget that represents a simple <a> element.
Audio	A widget representing an <audio> element.
Button	A standard push-button widget.
ButtonBase	Abstract base class for `Button`, `CheckBox`, `RadioButton`.
CalendarView	The CalendarView is a calendar grid that represents the current view of a `DatePicker`.
Canvas	A widget representing a <canvas> element.
CaptionPanel	A panel that wraps its contents in a border with a caption that appears in the upper left corner of the border.
CellBrowser	A "browsable" view of a tree in which only a single node per level may be open at one time.
CellList<T>	A single column list of cells.
CellPanel	A panel whose child widgets are contained within the cells of a table.
CellTable<T>	A tabular view that supports paging and columns.
CellTree	A view of a tree.
CellWidget<C>	A `Widget` that wraps a `Cell`.
CheckBox	A standard check box widget.
ComplexPanel	Abstract base class for panels that can contain multiple child widgets.
Composite	A type of widget that can wrap another widget, hiding the wrapped widget's methods.
CustomButton	CustomButton is a base button class with built in support for a set number of button faces.
DateBox	A text box that shows a `DatePicker` when the user focuses on it.
DateLabel	Extends `ValueLabel` for convenience when dealing with dates and `DateTimeFormat`, especially in `UiBinder` templates.
DatePicker	Standard GWT date picker.
DeckPanel	A panel that displays all of its child widgets in a 'deck', where only one can be visible at a time.
DecoratedPopupPanel	A `PopupPanel` that wraps its content in a 3x3 grid, which allows users to add rounded corners.
DecoratedStackPanel	A `StackPanel` that wraps each item in a 2x3 grid (six box), which allows users to add rounded corners.
DecoratedTabBar	A `TabBar` that wraps each tab in a 2x3 grid (six box), which allows users to add rounded corners.
DecoratedTabPanel	A `TabPanel` that uses a `DecoratedTabBar` with rounded corners.
DecoratorPanel	A `SimplePanel` that wraps its contents in stylized boxes, which can be used to add rounded corners to a `Widget`.
DefaultCalendarView	Simple calendar view.
DefaultMonthSelector	A simple `MonthSelector` used for the default date picker.
DialogBox	A form of popup that has a caption area at the top and can be dragged by the user.
DisclosurePanel	A widget that consists of a header and a content panel that discloses the content when a user clicks on the header.
DockLayoutPanel	A panel that lays its child widgets out "docked" at its outer edges, and allows its last widget to take up the remaining space in its center.
DockPanel	This class is deprecated. Use `DockLayoutPanel` instead, but understand that it is not a drop in replacement for this class. It requires standards mode, and is most easily used under a `RootLayoutPanel` (as opposed to a `RootPanel`
DoubleBox	A ValueBox that uses `DoubleParser` and `DoubleRenderer`.
FileUpload	A widget that wraps the HTML <input type='file'> element.
FlexTable	A flexible table that creates cells on demand.
FlowPanel	A panel that formats its child widgets using the default HTML layout behavior.
FocusPanel	A simple panel that makes its contents focusable, and adds the ability to catch mouse and keyboard events.
FocusWidget	Abstract base class for most widgets that can receive keyboard focus.
FormPanel	A panel that wraps its contents in an HTML <FORM> element.
Frame	A widget that wraps an IFRAME element, which can contain an arbitrary web site.
Grid	A rectangular grid that can contain text, html, or a child `Widget` within its cells.
HTML	A widget that can contain arbitrary HTML.
HTMLPanel	A panel that contains HTML, and which can attach child widgets to identified elements within that HTML.
HTMLTable	HTMLTable contains the common table algorithms for `Grid` and `FlexTable`.
Hidden	Represents a hidden field in an HTML form.
HorizontalPanel	A panel that lays all of its widgets out in a single horizontal column.
HorizontalSplitPanel	This class is deprecated. Use `SplitLayoutPanel` instead, but understand that it is not a drop in replacement for this class. It requires standards mode, and is most easily used under a `RootLayoutPanel` (as opposed to a `RootPanel`
Hyperlink	A widget that serves as an "internal" hyperlink.
Image	A widget that displays the image at a given URL.
InlineHTML	A widget that can contain arbitrary HTML.
InlineHyperlink	A widget that serves as an "internal" hyperlink.
InlineLabel	A widget that contains arbitrary text, not interpreted as HTML.
IntegerBox	A ValueBox that uses `IntegerParser` and `IntegerRenderer`.
Label	A widget that contains arbitrary text, not interpreted as HTML.
LabelBase<T>	Abstract base class for all text display widgets.
LayoutPanel	A panel that lays its children out in arbitrary `layers` using the `Layout` class.
LazyPanel	Convenience class to help lazy loading.
ListBox	A widget that presents a list of choices to the user, either as a list box or as a drop-down list.
LoggingPopup	A simple popup to show log messages, which can be resized, minimized, and dragged to a different location.
LongBox	A ValueBox that uses `LongParser` and `LongRenderer`.
MenuBar	A standard menu bar widget.
MonthSelector	Abstract month selector widget.
NamedFrame	A `Frame` that has a 'name' associated with it.
NotificationMole	Simple widget for providing notification feedback.
NumberLabel<T extends Number>	Extends `ValueLabel` for convenience when dealing with numbers and `NumberFormat`, especially in `UiBinder` templates.
PageSizePager	A simple pager that controls the page size.
Panel	Abstract base class for all panels, which are widgets that can contain other widgets.
PasswordTextBox	A text box that visually masks its input to prevent eavesdropping.
PopupPanel	A panel that can "pop up" over other widgets.
PushButton	A normal push button with custom styling.
RadioButton	A mutually-exclusive selection radio button widget.
ResetButton	A standard push-button widget which will automatically reset its enclosing `FormPanel` if any.
ResizeComposite	A `Composite` implementation that implements `RequiresResize` and automatically delegates that interface's methods to its wrapped widget, which must itself implement `RequiresResize`.
RichTextArea	A rich text editor that allows complex styling and formatting.
RootLayoutPanel	A singleton implementation of `LayoutPanel` that always attaches itself to the document body (i.e.
RootPanel	The panel to which all other widgets must ultimately be added.
ScrollPanel	A simple panel that wraps its contents in a scrollable area.
SimpleCheckBox	A simple checkbox widget, with no label.
SimplePager	A pager for controlling a `HasRows` that only supports simple page navigation.
SimplePanel	Base class for panels that contain only one widget.
SimpleRadioButton	A simple radio button widget, with no label.
SplitLayoutPanel	A panel that adds user-positioned splitters between each of its child widgets.
StackLayoutPanel	A panel that stacks its children vertically, displaying only one at a time, with a header for each child which the user can click to display.
StackPanel	A panel that stacks its children vertically, displaying only one at a time, with a header for each child which the user can click to display.
SubmitButton	A standard push-button widget which will automatically submit its enclosing `FormPanel` if any.
SuggestBox	A `SuggestBox` is a text box or text area which displays a pre-configured set of selections that match the user's input.
TabBar	A horizontal bar of folder-style tabs, most commonly used as part of a `TabPanel`.
TabLayoutPanel	A panel that represents a tabbed set of pages, each of which contains another widget.
TabPanel	A panel that represents a tabbed set of pages, each of which contains another widget.
TextArea	A text box that allows multiple lines of text to be entered.
TextBox	A standard single-line text box.
TextBoxBase	Abstract base class for most text entry widgets.
ToggleButton	A `ToggleButton` is a stylish stateful button which allows the user to toggle between `up` and `down` states.
Tree	A standard hierarchical tree widget.
ValueBox<T>	A text box able to parse its displayed value.
ValueBoxBase<T>	Abstract base class for all text entry widgets.
ValueBoxEditorDecorator<T>	A simple decorator to display leaf widgets with an error message.
ValueLabel<T>	A label displaying its value through a renderer.
ValueListBox<T>	Implementation of `HasConstrainedValue` based on a `SelectElement`.
ValuePicker<T>	Allows the user to pick a single value from a list.
VerticalPanel	A panel that lays all of its widgets out in a single vertical column.
VerticalSplitPanel	This class is deprecated. Use `SplitLayoutPanel` instead, but understand that it is not a drop in replacement for this class. It requires standards mode, and is most easily used under a `RootLayoutPanel` (as opposed to a `RootPanel`
Video	A widget representing a <video> element.
Widget	The base class for the majority of user-interface objects.

Class Overview

A widget that implements this interface is a public source of AttachEvent events.

Summary

Public Methods
abstract HandlerRegistration	addAttachHandler(AttachEvent.Handler handler) Adds an `AttachEvent` handler.

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Inherited Methods

From interface com.google.gwt.event.shared.HasHandlers

Public Methods

public abstract HandlerRegistration addAttachHandler (AttachEvent.Handler handler)

Adds an AttachEvent handler.

Parameters

handler	the handler

Returns

the handler registration

Interfaces