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PrimeFaces LightBox Widget

Type parameters

Hierarchy

Index

Constructors

constructor

  • Creates a new instance of this widget. Please note that you should NOT override this constructor. Instead, override the init method, which is called at the end of the constructor once the instance is created.

    Type parameters

    Parameters

    • cfg: PartialWidgetCfg<TCfg>

      The widget configuration to be used for this widget instance. This widget configuration is usually created on the server by the javax.faces.render.Renderer for this component.

    Returns LightBox<TCfg>

Properties

caption

The DOM element for the caption container below the lightbox.

captionText

captionText: JQuery<HTMLElement>

The DOM element for the caption text below the lightbox.

cfg

cfg: PartialWidgetCfg<TCfg>

The configuration of this widget instance. Please note that no property is guaranteed to be present, you should always check for undefined before accessing a property. This is partly because the value of a property is not transmitted from the server to the client when it equals the default.

closeIcon

closeIcon: JQuery<HTMLElement>

The DOM element for the close icon to hide the lightbox.

content

The DOM element for the content of the lightbox

contentWrapper

contentWrapper: JQuery<HTMLElement>

The DOM element for the content container of the lightbox-

current

current: number

Index of the slide currently being shown.

destroyListeners

Array of registered listeners invoked when this widget is destroyed. You should normally not use modify this directly, use addDestroyListener instead.

id

id: string | string[]

The client-side ID of this widget, with all parent naming containers, such as myForm:myWidget. This is also the ID of the container HTML element for this widget. In case the widget needs multiple container elements (such as Paginator), this may also be an array if IDs.

iframe

The DOM element for the iframe, if mode is set to iframe.

iframeLoaded

iframeLoaded: boolean

Whether the iframe was already loaded.

imageDisplay

imageDisplay: JQuery<HTMLElement>

The DOM element for the image, if mode is set to image.

inline

The DOM element for the inline content element, if mode is set to inline.

jq

The jQuery instance of the container element of this widget. In case id is an array, it will contain multiple elements. Please note that some widgets have got not DOM elements at all, in this case this will be an empty jQuery instance.

jqId

jqId: string

A CSS selector for the container element (or elements, in case id is an array) of this widget, This is usually an ID selector (that is properly escaped). You can select the container element or elements like this: $(widget.jqId).

links

The DOM element for the links in the inline content, if mode is set to inline.

navigators

navigators: JQuery<HTMLElement>

The DOM element for the arrow buttons for switching to the previous or next slide.

onshowHandlers

onshowHandlers: OnShowHandlersCallback[]

List of registered callback handlers for when the lightbox is shown.

panel

The DOM element for the entire lightbox overlay panel.

refreshListeners

Array of registered listeners invoked when this widget is refreshed. You should normally not use modify this directly, use addRefreshListener instead.

widgetVar

widgetVar: string

The name of the widget variables of this widget. The widget variable can be used to access a widget instance by calling PF('myWidgetVar').

Methods

addDestroyListener

  • Lets you register a listener that is called before the component is destroyed.

    When an AJAX call is made and this component is updated, the DOM element is replaced with the newly rendered content. When the element is removed from the DOM by the update, the DOM element is detached from the DOM and all destroy listeners are called. This makes it possible to add listeners from outside the widget code.

    If you call this method twice with the same listener, it will be registered twice and later also called twice.

    Note that for this to work, you must not override the destroy method; or if you do, call super.

    Also, after this widget was detached is done, all destroy listeners will be unregistered.

    since

    7.0

    Parameters

    Returns void

Private addOnshowHandler

  • addOnshowHandler(fn: () => void): void
  • Adds a callback that is invoked when the lightbox is displayed.

    Parameters

    • fn: () => void

      A callback that is invoked when the lightbox is shown.

        • (): void
        • Returns void

    Returns void

addRefreshListener

  • When an AJAX call is made and this component is updated, the DOM element is replaced with the newly rendered content. However, no new instance of the widget is created. Instead, after the DOM element was replaced, all refresh listeners are called. This makes it possible to add listeners from outside the widget code.

    If you call this method twice with the same listener, it will be registered twice and later also called twice.

    Note that for this to work, you must not override the refresh method; or if you do, call super.

    Also, after the refresh is done, all refresh listeners will be deregistered. If you added the listeners from within this widget, consider adding the refresh listeners not only in the init method, but also again in the refresh method after calling super.

    since

    7.0.0

    Parameters

    Returns void

Private bindCommonEvents

  • bindCommonEvents(): void
  • Sets up some common event handlers required independent of the content shown in the lightbox.

    Returns void

callBehavior

  • Each widget may have one or several behaviors attached to it. This method calls all attached behaviors for the given event name. In case no such behavior exists, this method does nothing and returns immediately.

    A behavior is a way for associating client-side scripts with UI components that opens all sorts of possibilities, including client-side validation, DOM and style manipulation, keyboard handling, and more. When the behavior is triggered, the configured JavaScript gets executed.

    Behaviors are often, but not necessarily, AJAX behavior. When triggered, it initiates a request the server and processes the response once it is received. This enables several features such as updating or replacing elements dynamically. You can add an AJAX behavior via <p:ajax event="name" actionListener="#{...}" onstart="..." />.

    since

    7.0

    Parameters

    • event: string

      The name of an event to call.

    • Optional ext: Partial<ConfigurationExtender>

      Additional configuration that is passed to the AJAX request for the server-side callback.

    Returns void

center

  • center(): void
  • Centers this lightbox so that is moved to the center of the browser viewport.

    Returns void

Private createPanel

  • createPanel(): void
  • Creates the DOM elements for the lightbox panel.

    Returns void

destroy

  • destroy(): void
  • Will be called after an AJAX request if the widget container will be detached.

    When an AJAX call is made and this component is updated, the DOM element is replaced with the newly rendered content. When the element is removed from the DOM by the update, the DOM element is detached from the DOM and this method gets called.

    Please note that instead of overriding this method, you should consider adding a destroy listener instead via addDestroyListener. This has the advantage of letting you add multiple listeners, and makes it possible to add additional listeners from code outside this widget.

    By default, this method just calls all destroy listeners.

    Returns void

disableModality

  • disableModality(): void
  • Makes this lightbox a non-modal dialog so that the user can interact with other content on the page.

    Returns void

enableModality

  • enableModality(): void
  • Makes this lightbox a modal dialog so that the user cannot interact with other content on the page.

    Returns void

getBehavior

  • getBehavior(name: string): null | Behavior
  • Each widget may have one or several behaviors attached to it. This method returns the callback function for the given event.

    Note: Do not call the method directly, the recommended way to invoke a behavior is via callBehavior.

    A behavior is a way for associating client-side scripts with UI components that opens all sorts of possibilities, including client-side validation, DOM and style manipulation, keyboard handling, and more. When the behavior is triggered, the configured JavaScript gets executed.

    Behaviors are often, but not necessarily, AJAX behavior. When triggered, it initiates a request the server and processes the response once it is received. This enables several features such as updating or replacing elements dynamically. You can add an AJAX behavior via <p:ajax event="name" actionListener="#{...}" onstart="..." />.

    Parameters

    • name: string

      The name of an event for which to retrieve the behavior.

    Returns null | Behavior

    The behavior with the given name, or null if no such behavior exists.

getJQ

  • Each widget has got a container element, this method returns that container. This container element is usually also the element whose ID is the client-side ID of the JSF component.

    Returns JQuery<HTMLElement>

    The jQuery instance representing the main HTML container element of this widget.

getParentForm

  • Gets the closest parent form for this widget.

    since

    10.0.0

    Returns JQuery<HTMLElement>

    A JQuery instance that either contains the form when found, or an empty JQuery instance when the form could not be found.

getParentFormId

  • getParentFormId(): undefined | string
  • Gets the closest parent form ID for this widget lazily so it can be used in AJAX requests.

    since

    10.0.0

    Returns undefined | string

    Either the form ID or undefined if no form can be found.

hasBehavior

  • hasBehavior(event: string): boolean
  • Each widget may have one or several behaviors attached to it. This method checks whether this widget has got at least one behavior associated with given event name.

    A behavior is a way for associating client-side scripts with UI components that opens all sorts of possibilities, including client-side validation, DOM and style manipulation, keyboard handling, and more. When the behavior is triggered, the configured JavaScript gets executed.

    Behaviors are often, but not necessarily, AJAX behavior. When triggered, it initiates a request the server and processes the response once it is received. This enables several features such as updating or replacing elements dynamically. You can add an AJAX behavior via <p:ajax event="name" actionListener="#{...}" onstart="..." />.

    Parameters

    • event: string

      The name of an event to check.

    Returns boolean

    true if this widget has the given behavior, false otherwise.

hide

  • hide(): void
  • Closes this lightbox and hides it from view.

    Returns void

hideNavigators

  • hideNavigators(): void
  • Hides the navigator buttons for switching to the previous or next slide.

    Returns void

init

  • A widget class should not declare an explicit constructor, the default constructor provided by this base widget should be used. Instead, override this initialize method which is called after the widget instance was constructed. You can use this method to perform any initialization that is required. For widgets that need to create custom HTML on the client-side this is also the place where you should call your render method.

    Please make sure to call the super method first before adding your own custom logic to the init method:

    PrimeFaces.widget.MyWidget = PrimeFaces.widget.BaseWidget.extend({
      init: function(cfg) {
        this._super(cfg);
        // custom initialization
      }
    });
    
    override

    Parameters

    • cfg: PartialWidgetCfg<TCfg>

      The widget configuration to be used for this widget instance. This widget configuration is usually created on the server by the javax.faces.render.Renderer for this component.

    Returns void

isDetached

  • isDetached(): boolean
  • Checks if this widget is detached, ie whether the HTML element of this widget is currently contained within the DOM (the HTML body element). A widget may become detached during an AJAX update, and it may remain detached in case the update removed this component from the component tree.

    Returns boolean

    true if this widget is currently detached, or false otherwise.

isHidden

  • isHidden(): boolean
  • Checks whether this light is currently being displayed.

    Returns boolean

    true if this lightbox is currently hidden, or false otherwise.

refresh

  • Used in ajax updates, reloads the widget configuration.

    When an AJAX call is made and this component is updated, the DOM element is replaced with the newly rendered content. However, no new instance of the widget is created. Instead, after the DOM element was replaced, this method is called with the new widget configuration from the server. This makes it possible to persist client-side state during an update, such as the currently selected tab.

    Please note that instead of overriding this method, you should consider adding a refresh listener instead via addRefreshListener. This has the advantage of letting you add multiple listeners, and makes it possible to add additional listeners from code outside this widget.

    By default, this method calls all refresh listeners, then reinitializes the widget by calling the init method.

    override

    Parameters

    Returns void

    The value as returned by the init method, which is often undefined.

removeScriptElement

  • removeScriptElement(clientId: string | string[]): void
  • Removes the widget's script block from the DOM. Currently, the ID of this script block consists of the client-side ID of this widget with the prefix _s, but this is subject to change.

    Parameters

    • clientId: string | string[]

      The client-side ID of the widget.

    Returns void

Private scaleImage

  • Scales the given image so that it fits the lightbox viewport.

    Parameters

    Returns void

Private setupIframe

  • setupIframe(): void
  • Sets up the DOM elements and events handlers for showing an external page inside an iframe in the lightbox.

    Returns void

Private setupImaging

  • setupImaging(): void
  • Sets up the DOM elements and events handlers for showing images in the lightbox

    Returns void

Private setupInline

  • setupInline(): void
  • Sets up the DOM elements and events handlers for inline content such as videos in the lightbox.

    Returns void

show

  • show(): void
  • Brings up this lightbox and shows it to the user.

    Returns void

showNavigators

  • showNavigators(): void
  • Displays the navigator buttons for switching to the previous or next slide.

    Returns void

showURL

  • Shows the given URL in an IFRAME inside this lightbox.

    Parameters

    Returns void

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