Adobe® Flex® 4 Language Reference
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spark.core 
NavigationUnit 
Packagespark.core
Classpublic final class NavigationUnit
InheritanceNavigationUnit Inheritance Object

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

The NavigationUnit class defines the possible values for the getVerticalScrollPositionDelta() and getHorizontalScrollPositionDelta() methods of the IViewport class.

All of these constants have the same values as their flash.ui.Keyboard counterparts, except PAGE_LEFT and PAGE_RIGHT, for which no keyboard key equivalents exist.

See also



Public Properties
 PropertyDefined By
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
 Inheritedprototype : Object
[static] A reference to the prototype object of a class or function object.
Object
Public Methods
 MethodDefined By
 Inherited
Indicates whether an object has a specified property defined.
Object
  
[static] Returns true if the keyCode maps directly to a NavigationUnit enum value.
NavigationUnit
 Inherited
Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.
Object
 Inherited
Indicates whether the specified property exists and is enumerable.
Object
 Inherited
Sets the availability of a dynamic property for loop operations.
Object
 Inherited
Returns the string representation of this object, formatted according to locale-specific conventions.
Object
 Inherited
Returns the string representation of the specified object.
Object
 Inherited
Returns the primitive value of the specified object.
Object
Public Constants
 ConstantDefined By
  DOWN : uint = 40
[static] Navigate one line or "step" downwards.
NavigationUnit
  END : uint = 35
[static] Navigate to the end of the document.
NavigationUnit
  HOME : uint = 36
[static] Navigate to the origin of the document.
NavigationUnit
  LEFT : uint = 37
[static] Navigate one line or "step" to the left.
NavigationUnit
  PAGE_DOWN : uint = 34
[static] Navigate one page downwards.
NavigationUnit
  PAGE_LEFT : uint = 0x2397
[static] Navigate one page to the left.
NavigationUnit
  PAGE_RIGHT : uint = 0x2398
[static] Navigate one page to the right.
NavigationUnit
  PAGE_UP : uint = 33
[static] Navigate one page upwards.
NavigationUnit
  RIGHT : uint = 39
[static] Navigate one line or "step" to the right.
NavigationUnit
  UP : uint = 38
[static] Navigate one line or "step" upwards.
NavigationUnit
Method Detail

isNavigationUnit

()method
public static function isNavigationUnit(keyCode:uint):Boolean

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

Returns true if the keyCode maps directly to a NavigationUnit enum value.

Parameters

keyCode:uint

Returns
Boolean
Constant Detail

DOWN

Constant
public static const DOWN:uint = 40

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

Navigate one line or "step" downwards.

END

Constant 
public static const END:uint = 35

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

Navigate to the end of the document.

HOME

Constant 
public static const HOME:uint = 36

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

Navigate to the origin of the document.

LEFT

Constant 
public static const LEFT:uint = 37

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

Navigate one line or "step" to the left.

PAGE_DOWN

Constant 
public static const PAGE_DOWN:uint = 34

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

Navigate one page downwards.

PAGE_LEFT

Constant 
public static const PAGE_LEFT:uint = 0x2397

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

Navigate one page to the left. The value of this constant, 0x2397, is the same as the Unicode "previous page" character.

PAGE_RIGHT

Constant 
public static const PAGE_RIGHT:uint = 0x2398

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

Navigate one page to the right. The value of this constant, 0x2398, is the same as the Unicode "next page" character.

PAGE_UP

Constant 
public static const PAGE_UP:uint = 33

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

Navigate one page upwards.

RIGHT

Constant 
public static const RIGHT:uint = 39

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

Navigate one line or "step" to the right.

UP

Constant 
public static const UP:uint = 38

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

Navigate one line or "step" upwards.