Enum Class FocusEvent.Cause
- All Implemented Interfaces:
-
Serializable,Comparable<FocusEvent.Cause>,Constable
- Enclosing class:
- FocusEvent
public static enum FocusEvent.Cause extends Enum<FocusEvent.Cause>
This enum represents the cause of a
FocusEvent- the reason why it occurred. Possible reasons include mouse events, keyboard focus traversal, window activation. If no cause is provided then the reason is UNKNOWN.- Since:
- 9
Nested Class Summary
Nested classes/interfaces declared in class java.lang.Enum
Enum.EnumDesc<E extends Enum<E>>
Enum Constant Summary
| Enum Constant | Description |
|---|---|
ACTIVATION |
An activation of a toplevel window. |
CLEAR_GLOBAL_FOCUS_OWNER |
Clearing global focus owner. |
MOUSE_EVENT |
An activating mouse event. |
ROLLBACK |
Restoring focus after a focus request has been rejected. |
TRAVERSAL |
A focus traversal action with unspecified direction. |
TRAVERSAL_BACKWARD |
A backward focus traversal action. |
TRAVERSAL_DOWN |
A down-cycle focus traversal action. |
TRAVERSAL_FORWARD |
A forward focus traversal action. |
TRAVERSAL_UP |
An up-cycle focus traversal action. |
UNEXPECTED |
A system action causing an unexpected focus change. |
UNKNOWN |
The default value. |
Method Summary
| Modifier and Type | Method | Description |
|---|---|---|
static FocusEvent.Cause |
valueOf |
Returns the enum constant of this class with the specified name. |
static FocusEvent.Cause[] |
values() |
Returns an array containing the constants of this enum class, in the order they are declared. |
Enum Constant Details
UNKNOWN
public static final FocusEvent.Cause UNKNOWN
The default value.
MOUSE_EVENT
public static final FocusEvent.Cause MOUSE_EVENT
An activating mouse event.
TRAVERSAL
public static final FocusEvent.Cause TRAVERSAL
A focus traversal action with unspecified direction.
TRAVERSAL_UP
public static final FocusEvent.Cause TRAVERSAL_UP
An up-cycle focus traversal action.
TRAVERSAL_DOWN
public static final FocusEvent.Cause TRAVERSAL_DOWN
A down-cycle focus traversal action.
TRAVERSAL_FORWARD
public static final FocusEvent.Cause TRAVERSAL_FORWARD
A forward focus traversal action.
TRAVERSAL_BACKWARD
public static final FocusEvent.Cause TRAVERSAL_BACKWARD
A backward focus traversal action.
ROLLBACK
public static final FocusEvent.Cause ROLLBACK
Restoring focus after a focus request has been rejected.
UNEXPECTED
public static final FocusEvent.Cause UNEXPECTED
A system action causing an unexpected focus change.
ACTIVATION
public static final FocusEvent.Cause ACTIVATION
An activation of a toplevel window.
CLEAR_GLOBAL_FOCUS_OWNER
public static final FocusEvent.Cause CLEAR_GLOBAL_FOCUS_OWNER
Clearing global focus owner.
Method Details
values
public static FocusEvent.Cause[] values()
Returns an array containing the constants of this enum class, in the order they are declared.
- Returns:
- an array containing the constants of this enum class, in the order they are declared
valueOf
public static FocusEvent.Cause valueOf(String name)
Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)
- Parameters:
-
name- the name of the enum constant to be returned. - Returns:
- the enum constant with the specified name
- Throws:
-
IllegalArgumentException- if this enum class has no constant with the specified name -
NullPointerException- if the argument is null
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https://docs.oracle.com/en/java/javase/17/docs/api/java.desktop/java/awt/event/FocusEvent.Cause.html