## Uses of Interface
com.google.gwt.event.dom.client.HasFocusHandlers

- Packages that use HasFocusHandlers
  Package | Description
  --- | ---
  com.google.gwt.canvas.client | Classes for HTML Canvas 2D support.
  com.google.gwt.event.dom.client | Types related to DOM events.
  com.google.gwt.media.client | Widgets for HTML Audio and Video support.
  com.google.gwt.user.client.ui | Widgets, Panels, and other user-interface classes.

- - ### Uses of HasFocusHandlers in com.google.gwt.canvas.client

    Classes in com.google.gwt.canvas.client that implement HasFocusHandlers
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `Canvas` | A widget representing a <canvas> element.

  - ### Uses of HasFocusHandlers in com.google.gwt.event.dom.client

    Subinterfaces of HasFocusHandlers in com.google.gwt.event.dom.client
    Modifier and Type | Interface | Description
    --- | --- | ---
    `interface` | `HasAllFocusHandlers` | This is a convenience interface that includes all focus handlers defined by the core GWT system.

  - ### Uses of HasFocusHandlers in com.google.gwt.media.client

    Classes in com.google.gwt.media.client that implement HasFocusHandlers
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `Audio` | A widget representing an <audio> element.
    `class` | `MediaBase` | A widget representing a media element.
    `class` | `Video` | A widget representing a <video> element.

  - ### Uses of HasFocusHandlers in com.google.gwt.user.client.ui

    Classes in com.google.gwt.user.client.ui that implement HasFocusHandlers
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `Anchor` | A widget that represents a simple <a> element.
    `class` | `Button` | A standard push-button widget.
    `class` | `ButtonBase` | Abstract base class for `Button`, `CheckBox`, `RadioButton`.
    `class` | `CheckBox` | A standard check box widget.
    `class` | `CustomButton` | CustomButton is a base button class with built in support for a set number of button faces.
    `class` | `DoubleBox` | A ValueBox that uses `DoubleParser` and `DoubleRenderer`.
    `class` | `FileUpload` | A widget that wraps the HTML <input type='file'> element.
    `class` | `FocusPanel` | A simple panel that makes its contents focusable, and adds the ability to catch mouse and keyboard events.
    `class` | `FocusWidget` | Abstract base class for most widgets that can receive keyboard focus.
    `class` | `IntegerBox` | A ValueBox that uses `IntegerParser` and `IntegerRenderer`.
    `class` | `ListBox` | A widget that presents a list of choices to the user, either as a list box or as a drop-down list.
    `class` | `LongBox` | A ValueBox that uses `LongParser` and `LongRenderer`.
    `class` | `PasswordTextBox` | A text box that visually masks its input to prevent eavesdropping.
    `class` | `PushButton` | A normal push button with custom styling.
    `class` | `RadioButton` | A mutually-exclusive selection radio button widget.
    `class` | `ResetButton` | A standard push-button widget which will automatically reset its enclosing `FormPanel` if any.
    `class` | `RichTextArea` | A rich text editor that allows complex styling and formatting.
    `class` | `SimpleCheckBox` | A simple checkbox widget, with no label.
    `class` | `SimpleRadioButton` | A simple radio button widget, with no label.
    `class` | `SubmitButton` | A standard push-button widget which will automatically submit its enclosing `FormPanel` if any.
    `class` | `TextArea` | A text box that allows multiple lines of text to be entered.
    `class` | `TextBox` | A standard single-line text box.
    `class` | `TextBoxBase` | Abstract base class for most text entry widgets.
    `class` | `ToggleButton` | A `ToggleButton` is a stylish stateful button which allows the user to toggle between `up` and `down` states.
    `class` | `Tree` | A standard hierarchical tree widget.
    `class` | `ValueBox<T>` | A text box able to parse its displayed value.
    `class` | `ValueBoxBase<T>` | Abstract base class for all text entry widgets.