Name

LzFocus — Handles keyboard focus.

Synopsis

JavaScript: LzFocus
Type: Object
Access: public
Topic: LFC.Services
Declared in: WEB-INF/lps/lfc/services/LzFocus.lzs

Description

This service manages the keyboard focus. At any time, at most one view has the keyboard focus. This is the view that receives key events when a key is pressed.

See The Software Developer's Guide for a discussion of keyboard focus.

Details

Static Properties (5)

csel
static public var csel = null;
downDel
static public var downDel = { ... };
focuswithkey
static public var focuswithkey : Boolean = null;
This attribute is set to true when the focus has moved because the user has hit the next or prev focus key (usually 'tab' and 'shift-tab'.) If the focus moves due to mouse-click the value is set to false. If the focus moves through programmatic control, the value is unchanged from its last value.
lastfocus
static public var lastfocus : LzView = null;
A reference to the last view that held the focus
upDel
static public var upDel = { ... };

Static Methods (7)

clearFocus()
static public function clearFocus();
Remove the focus from the currently focused view (if there is one). An 'onblur' event is first sent to the view.
getFocus()
static public function getFocus() : LzView;
Get the currently focused view.
getNext()
static public function getNext(focusview : LzView) : LzView;
Returns the next focusable view.
getPrev()
static public function getPrev(focusview : LzView) : LzView;
Returns the previous focusable view.
next()
static public function next();
Move the focus to the next focusable view.
prev()
static public function prev();
Move the focus to the previous focusable view.
setFocus()
static public function setFocus(newsel : LzView);
Set the focus to the given view. If this is not the currently focused view, an onblur event is sent to the currently focused view, and an onfocus event is sent to the new view. When setFocus is called as the result of an onblur or onfocus event, all the delegates registered for the event run before the next setFocus call is made. While it is not an error for multiple responders to call setFocus as the result of the same onfocus or onblur event, only one of the calls will be executed.

Static Events (1)

onfocus
static public event onfocus;
Sent when the focus changes, with the argument being the view that was just focused. If nothing is focussed, this event is sent with null.

JavaScript Synopsis

public var LzFocus = { ... };