class UISpacer

A view class that represents a flexible control without any content.

class UISpacer
extends UIComponent

Description

A spacer component is rendered on-screen as an empty placeholder.

Constructor

• constructor(width?, height?, minWidth?, minHeight?)Creates a new spacer component, with optional width and height.

Instance Members

• applyViewPreset(preset)Applies the provided preset properties to this object.
• widthSpacer width (in pixels or string with unit).
• heightSpacer height (in pixels or string with unit).
• minWidthSpacer minimum width (in pixels or string with unit).
• minHeightSpacer minimum height (in pixels or string with unit).

Inherited Members

• hiddenTrue if the component should be hidden from view.
• positionOptions related to the position of this component.
• accessibleRoleWAI-ARIA role for this component, if applicable.
• accessibleLabelWAI-ARIA label text for this component (not tooltip), if applicable.
• requestFocus()Requests input focus on this component.
• requestFocusNext()Requests input focus for the next sibling component.
• requestFocusPrevious()Requests input focus for the previous sibling component.
• render(callback)Triggers asynchronous rendering for this component, and all contained components, if any.
• findViewContent(type)Implementation of View.findViewContent(), returns an empty array unless overridden.
• lastRenderOutputLast rendered output, if any; set by the UI component renderer.
• emit(event)Emits an event, immediately calling all event handlers.
• emitChange(name?, data?)Emits a change event, an instance of ManagedChangeEvent.
• listen(handler)Adds a handler for all events emitted by this object.
• isUnlinked()Returns true if the object has been unlinked.
• unlink()Unlinks this managed object.
• beforeUnlink() protectedA method that’s called immediately before unlinking an object, can be overridden.
• attach(target, observer?) protectedAttaches the provided managed object to this object.
• autoAttach(propertyName, observer?) protectedObserves a property, so that any object assigned to it is attached immediately.