Package com.google.gwt.user.client.ui
Class KeyboardListenerAdapter
java.lang.Object
com.google.gwt.user.client.ui.KeyboardListenerAdapter
- All Implemented Interfaces:
KeyboardListener
,EventListener
Deprecated.
An adapter to simplify keyboard event listeners that do not need all events
defined on the KeyboardListener interface.
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Field Summary
Fields inherited from interface com.google.gwt.user.client.ui.KeyboardListener
KEY_ALT, KEY_BACKSPACE, KEY_CTRL, KEY_DELETE, KEY_DOWN, KEY_END, KEY_ENTER, KEY_ESCAPE, KEY_HOME, KEY_LEFT, KEY_PAGEDOWN, KEY_PAGEUP, KEY_RIGHT, KEY_SHIFT, KEY_TAB, KEY_UP, MODIFIER_ALT, MODIFIER_CTRL, MODIFIER_META, MODIFIER_SHIFT
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
Deprecated.Fired when the user depresses a physical key.void
onKeyPress
(Widget sender, char keyCode, int modifiers) Deprecated.Fired when a keyboard action generates a character.void
Deprecated.Fired when the user releases a physical key.
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Constructor Details
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KeyboardListenerAdapter
public KeyboardListenerAdapter()Deprecated.
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Method Details
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onKeyDown
Deprecated.Description copied from interface:KeyboardListener
Fired when the user depresses a physical key.- Specified by:
onKeyDown
in interfaceKeyboardListener
- Parameters:
sender
- the widget that was focused when the event occurred.keyCode
- the physical key that was depressed. Constants for this value are defined in this interface with the KEY prefix.modifiers
- the modifier keys pressed at when the event occurred. This value is a combination of the bits defined byKeyboardListener.MODIFIER_SHIFT
,KeyboardListener.MODIFIER_CTRL
, andKeyboardListener.MODIFIER_ALT
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onKeyPress
Deprecated.Description copied from interface:KeyboardListener
Fired when a keyboard action generates a character. This occurs after onKeyDown and onKeyUp are fired for the physical key that was pressed.It should be noted that many browsers do not generate keypress events for non-printing keyCode values, such as
KeyboardListener.KEY_ENTER
or arrow keys. These keyCodes can be reliably captured either withKeyboardListener.onKeyDown(Widget, char, int)
orKeyboardListener.onKeyUp(Widget, char, int)
.- Specified by:
onKeyPress
in interfaceKeyboardListener
- Parameters:
sender
- the widget that was focused when the event occurred.keyCode
- the Unicode character that was generated by the keyboard action.modifiers
- the modifier keys pressed at when the event occurred. This value is a combination of the bits defined byKeyboardListener.MODIFIER_SHIFT
,KeyboardListener.MODIFIER_CTRL
, andKeyboardListener.MODIFIER_ALT
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onKeyUp
Deprecated.Description copied from interface:KeyboardListener
Fired when the user releases a physical key.- Specified by:
onKeyUp
in interfaceKeyboardListener
- Parameters:
sender
- the widget that was focused when the event occurred.keyCode
- the physical key that was released. Constants for this value are defined in this interface with the KEY prefix.modifiers
- the modifier keys pressed at when the event occurred. This value is a combination of the bits defined byKeyboardListener.MODIFIER_SHIFT
,KeyboardListener.MODIFIER_CTRL
, andKeyboardListener.MODIFIER_ALT
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KeyDownHandler
,KeyUpHandler
and/orKeyPressHandler
instead