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java.lang.Objectcom.google.gwt.user.client.ui.KeyboardListenerAdapter
KeyDownHandler,
KeyUpHandler and/or
KeyPressHandler instead
@Deprecated public class KeyboardListenerAdapter
An adapter to simplify keyboard event listeners that do not need all events defined on the KeyboardListener interface.
| 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 |
| Constructor Summary | |
|---|---|
KeyboardListenerAdapter()
Deprecated. |
|
| Method Summary | |
|---|---|
void |
onKeyDown(Widget sender,
char keyCode,
int modifiers)
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 |
onKeyUp(Widget sender,
char keyCode,
int modifiers)
Deprecated. Fired when the user releases a physical key. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public KeyboardListenerAdapter()
| Method Detail |
|---|
public void onKeyDown(Widget sender,
char keyCode,
int modifiers)
KeyboardListener
onKeyDown in interface KeyboardListenersender - 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 by
KeyboardListener.MODIFIER_SHIFT,
KeyboardListener.MODIFIER_CTRL, and
KeyboardListener.MODIFIER_ALT
public void onKeyPress(Widget sender,
char keyCode,
int modifiers)
KeyboardListener
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 with
KeyboardListener.onKeyDown(Widget, char, int) or
KeyboardListener.onKeyUp(Widget, char, int).
onKeyPress in interface KeyboardListenersender - 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 by
KeyboardListener.MODIFIER_SHIFT,
KeyboardListener.MODIFIER_CTRL, and
KeyboardListener.MODIFIER_ALT
public void onKeyUp(Widget sender,
char keyCode,
int modifiers)
KeyboardListener
onKeyUp in interface KeyboardListenersender - 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 by
KeyboardListener.MODIFIER_SHIFT,
KeyboardListener.MODIFIER_CTRL, and
KeyboardListener.MODIFIER_ALT
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