Class HiddenVar
Object
|
+--Widget
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+--HiddenVar
- class
HiddenVar
- extends Widget
Raises:
beforedragstart
- whenever a draggable widget is about to be dragged. Listeners receive an instance of
DragEvent
. Setting the continueDrag
property of the DragEvent
to false
will prevent the drag operation from starting. (See DragEvent.continueDrag
.)
beforedragmove
- whenever the user moves the mouse during a drag operation, but before the dragged-widget's position is updated. Listeners are passed an instance of
DragEvent
. Once this event has been raised, the dragged-widget's position is updated to match the widget
property of the DragEvent
that was passed to the beforedragmove
listeners. Therefor, modifying the widget
property will affect the new position of the dragged widget. Listeners can thus constrain the region inside which the dragged-widget can be dragged. (See DragEvent.widget
.)
afterdragmove
- whenever the user moves the mouse during a drag operation, but after the dragged-widget's position has been updated. Listeners are passed the same instance of
DragEvent
that was passed to the matching beforedragmove
event. Modifying the members of the DragEvent
during an afterdragmove
event has no effect.
afterdragstop
- whenever a drag operation terminates normally on a draggable widget (ie. the user 'dropped' the widget). Listeners are passed an instance of
DragEvent
. The mouse
property of the DragEvent
reflects the co-ordinates of the mouse at the time of the drop, and the widget
property represents the co-ordinates of the dragged-widget at the time of the drop. (See DragEvent.mouse
and DragEvent.widget
.)
afterdragcancel
- whenever a drag operation is cancelled by the user (probably by pressing the escape key). Listeners are passed an instance of
DragEvent
. In the case of an afterdragcancel
event, the mouse
property of the DragEvent
reflects the co-ordinates that the mouse would have been at had it been a mouse event that caused the drag operation to be cancelled. Also, the widget
property is the co-ordinates where the dragged-widget has been placed because of the cancellation. Together, this means that the same listener could be attached to both afterdragstop
and afterdragcancel
because the members of the DragEvent
are consistent between the two events. (See DragEvent.mouse
and DragEvent.widget
.)
Deprecated use a normal JavaScript variable instead
Defined in form_widgets.js
Constructor Summary |
HiddenVar
(container, name, value)
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Methods inherited from class Widget |
installContextMenu, installDefaultContextMenu, uninstallContextMenu, isDraggable, setDraggable, addEventListener, blur, createEventTable, dispose, focus, getAbsoluteBottom, getAbsoluteLeft, getAbsoluteRight, getAbsoluteTop, getBottom, getBounds, getClientHeight, getClientWidth, getCorner, getHeight, getLeft, getPixelsPerEm, getRight, getToolTip, getTop, getWidth, isDisposed, isEnabled, layout, moveToAbsolute, moveTo, raiseEvent, registerEventType, removeEventListener, setAbsoluteBottom, setAbsoluteLeft, setAbsoluteRight, setAbsoluteTop, setBottom, setBounds, setEnabled, setHeight, setLeft, setRight, setToolTip, setTop, setWidth, setParent, toString
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HiddenVar
function HiddenVar(container, name, value)
Parameters:
html
- an HTML node to use as this widget's representation.
parent
- a Widget
that contains this widget. Use of this parameter is deprecated and it will hopefully be removed in a codebase cleanup.
Deprecated use a normal JavaScript variable instead
changeName
function changeName(newName)
changeValue
function changeValue(newValue)