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PrimeFaces SelectOneMenu Widget

SelectOneMenu is an extended version of the standard SelectOneMenu.

Type Parameters

Hierarchy

Index

Constructors

  • 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 SelectOneMenu<TCfg>

Properties

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.

changed: boolean

Whether the value of this widget was changed from its original value.

customInput: JQuery<HTMLElement>

The DOM element for the input field that lets the user enter a custom value which does not have to match one of the available options.

customInputVal: string

The custom value that was entered by the user which does not have to match one the available options.

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

disabled: boolean

Whether this widget is currently disabled.

filterInput: JQuery<HTMLElement>

The DOM element for the input field that lets the user enter a search term to filter the list of available options.

The filter that was selected and is currently used.

Map between the available filter types and the filter implementation.

focusInput: JQuery<HTMLElement>

The hidden input that can be focused via the tab key etc. (only used with editable="true")

hasFloatLabel: boolean

Is this component wrapped in a float label.

hideOverlayHandler?: UnbindCallback

Unbind callback for the hide overlay handler.

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.

input: JQuery<HTMLElement>

The DOM element for the hidden input with the current value.

isDynamicLoaded: boolean

Whether the contents of the overlay panel were loaded.

isTabbing: boolean

Whether the current process is handling the tab key.

items?: JQuery<HTMLElement>

The DOM elements for the available selectable options.

itemsContainer?: JQuery<HTMLElement>

The DOM element for the container with the available selectable options.

itemsWrapper: JQuery<HTMLElement>

The DOM element for the wrapper with the container with the available selectable options.

jq: JQuery<HTMLElement>

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: 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).

keyboardTarget: JQuery<HTMLElement>

The DOM element used as target for keyboard - events.

label: JQuery<HTMLElement>

The DOM element for the label indicating the currently selected option.

labeledBy: JQuery<HTMLElement>

The DOM element for the label connected to he SelectOneMenu. up.

menuIcon: JQuery<HTMLElement>

The DOM element for the icon for bringing up the overlay panel.

optGroupsSize: number

The number of option groups.

options: JQuery<HTMLElement>

The DOM elements for the available selectable options.

panel: JQuery<HTMLElement>

The DOM element for the overlay panel with the available selectable options.

panelId: JQuery<HTMLElement>

ID of the DOM element for the overlay panel with the available selectable options.

panelWidthAdjusted: number

The adjusted width of the overlay panel.

preShowValue: JQuery<HTMLElement>

The DOM element for the selected option that is shown before the overlay panel is brought.

querying?: boolean

Whether an AJAX request for the autocompletion items is currently in progress.

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

resizeHandler?: UnbindCallback

Unbind callback for the resize handler.

scrollHandler?: UnbindCallback

Unbind callback for the scroll handler.

searchTimer: number

ID of the timeout for the delay of the filter input in the overlay panel.

searchValue: number

Letters typed for selection. (#4682, only used with editable="false")

transition?: null | CssTransitionHandler

Handler for CSS transitions used by this widget.

triggers: JQuery<HTMLElement>

The DOM elements for the buttons that can trigger (hide or show) the overlay panel with the available selectable options.

value: string

The current value of this select one menu.

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

  • _render(): void
  • This render method is called by this deferred widget once the widget container has become visible. You may now proceed with widget initialization.

    Must be overridden, or an error will be thrown.

    override

    Returns void

  • _show(): void
  • Brings up the overlay panel with the available selectable options. Compared this show, this does not ensure the the overlay panel is loaded already (when dynamic loading is enabled).

    Returns void

  • addDeferredRender(widgetId: string, container: JQuery<HTMLElement>, callback: (() => boolean)): void
  • Adds a deferred rendering task for the given widget to the queue.

    Parameters

    • widgetId: string

      The ID of a deferred widget.

    • container: JQuery<HTMLElement>

      The container element that should be visible.

    • callback: (() => boolean)

      Callback that is invoked when the widget may possibly have become visible. Should return true when the widget was rendered, or false when the widget still needs to be rendered later.

        • (): boolean
        • Returns boolean

    Returns void

  • 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

  • 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

  • alignPanel(): void
  • Align the overlay panel with the available selectable options so that is is positioned next to the the button.

    Returns void

  • alignPanelWidth(): void
  • Adjust the width of the overlay panel.

    Returns void

  • bindEvents(): void
  • Sets up all event listeners required by this widget.

    Returns void

  • bindFilterEvents(): void
  • Sets up the event listeners for the filter input in the overlay panel.

    Returns void

  • bindFloatLabel(): void
  • Sets up the event listeners if this is bound to a floating label.

    Returns void

  • bindItemEvents(): void
  • Sets up the event listeners for the selectable items.

    Returns void

  • bindKeyEvents(): void
  • Sets up the event listeners for all keyboard related events other than the overlay panel, such as pressing space to bring up the overlay panel.

    Returns void

  • bindPanelEvents(): void
  • Sets up all panel event listeners

    Returns void

  • blur(): void
  • Removes focus from this widget.

    Returns void

  • 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

  • changeAriaValue(item: JQuery<HTMLElement>): void
  • Adjusts the value of the aria attributes for the given selectable option.

    Parameters

    • item: JQuery<HTMLElement>

      An option for which to set the aria attributes.

    Returns void

  • containsFilter(value: string, filter: string): boolean
  • Implementation of a PrimeFaces.widget.SelectOneMenu.FilterFunction that matches the given option when it contains the given search text.

    Parameters

    • value: string

      Text of an option.

    • filter: string

      Value of the filter.

    Returns boolean

    true when the text of the contains the filter value, or false otherwise.

  • destroy(): void
  • Cleans up deferred render tasks. When you extend this class and override this method, make sure to call super.

    override

    Returns void

  • disable(): void
  • Disables this widget so that the user cannot select any option.

    Returns void

  • dynamicPanelLoad(): void
  • Loads the overlay panel with the selectable options, if dynamic mode is enabled.

    Returns void

  • enable(): void
  • Enables this widget so that the user can select an option.

    Returns void

  • endsWithFilter(value: string, filter: string): boolean
  • Implementation of a PrimeFaces.widget.SelectOneMenu.FilterFunction that matches the given option when it ends with the given search text.

    Parameters

    • value: string

      Text of an option.

    • filter: string

      Value of the filter.

    Returns boolean

    true when the text of the options ends with the filter value, or false otherwise.

  • filter(value: string): void
  • Filters the available options in the overlay panel by the given search value. Note that this does not bring up the overlay panel, use show for that.

    Parameters

    • value: string

      A value against which the available options are matched.

    Returns void

  • focus(): void
  • Puts focus on this widget.

    Returns void

  • focusFilter(timeout?: number): void
  • Puts focus on the filter input in the overlay panel.

    Parameters

    • Optional timeout: number

      Amount of time in milliseconds to wait before attempting to focus the input.

    Returns void

  • getActiveItem(): JQuery<HTMLElement>
  • Finds the element for the currently select option of this select one menu.

    Returns JQuery<HTMLElement>

    The DOM element that represents the currently selected option.

  • 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.

  • 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.

  • getLabelToDisplay(value: string): string
  • Finds the label of the option with the given value.

    Parameters

    • value: string

      The value of a selectable option.

    Returns string

    The label of the option with the given value.

  • getParentForm(): JQuery<HTMLElement>
  • 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(): 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.

  • getSelectedLabel(): string
  • Finds the label of the currently selected item, if any.

    Returns string

    The label of the currently selected item. Empty string if none is selected.

  • getSelectedValue(): string
  • Finds the value of the currently selected item, if any.

    Returns string

    The value of the currently selected item. Empty string if none is selected.

  • Callback for when the enter key was pressed. Brings up the overlay panel or accepts the highlighted option.

    Parameters

    Returns void

  • Callback for when the escape key was pressed. Hides the overlay panel.

    Parameters

    Returns void

  • Callback that adjusts the label, invoked when the selected option has changed.

    Parameters

    • event: TriggeredEvent<any, any, any, any>

      The event that triggered the change.

    Returns void

  • Callback for when the space key was pressed. Brings up or hides the overlay panel.

    Parameters

    Returns void

  • Callback for when the tab key was pressed. Selects the next option.

    Parameters

    • event: TriggeredEvent<any, any, any, any>

      The keyboard event for the TAB.

    Returns void

  • handleViewportChange(): void
  • Fired when the browser viewport is resized or scrolled. In Mobile environment we don't want to hider the overlay we want to re-align it. This is because on some mobile browser the popup may force the browser to trigger a resize immediately and close the overlay. See GitHub #7075.

    Returns void

  • 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(): void
  • Hides the overlay panel with the available selectable options.

    Returns void

  • highlightItem(item: JQuery<HTMLElement>): void
  • Highlight the given selectable option.

    Parameters

    • item: JQuery<HTMLElement>

      Option to highlight.

    Returns void

  • Highlights the next option after the currently highlighted option in the overlay panel.

    Parameters

    Returns void

  • Highlights the previous option before the currently highlighted option in the overlay panel.

    Parameters

    Returns void

  • 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

  • initContents(): void
  • Finds and initializes the DOM elements that make up this widget.

    Returns void

  • 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.

  • matchOptions(text: string): JQuery<HTMLElement>
  • Finds all options that match the given search string.

    Parameters

    • text: string

      The search string against which to match the options.

    Returns JQuery<HTMLElement>

    All selectable options that match (contain) the given search string.

  • postRender(): void
  • Called after the widget has become visible and after it was rendered. May be overridden, the default implementation is a no-op.

    Returns void

  • 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(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

  • This render method to check whether the widget container is visible. Do not override this method, or the deferred widget functionality may not work properly anymore.

    Returns ReturnOrVoid<undefined | boolean>

    true if the widget container is visible, false or undefined otherwise.

  • renderDeferred(): void
  • Call this method in the init method if you want deferred rendering support. This method checks whether the container of this widget is visible and call _render only once it is.

    Returns void

  • renderPanelContentFromHiddenSelect(initContentsAndBindItemEvents: boolean): void
  • Renders panel content based on hidden select.

    Parameters

    Returns void

  • renderSelectItem(item: JQuery<HTMLElement>, isGrouped?: boolean): string
  • Renders panel HTML code for one select item (group).

    Parameters

    • item: JQuery<HTMLElement>

      An option (group) for which to render HTML code.

    • Optional isGrouped: boolean

      Indicates whether the item is part of a group.

    Returns string

    The rendered HTML string.

  • renderSelectItems(parentItem: JQuery<HTMLElement>, isGrouped?: boolean): string
  • Renders panel HTML-code for all select items.

    Parameters

    • parentItem: JQuery<HTMLElement>

      A parent item (select, optgroup) for which to render HTML code.

    • Optional isGrouped: boolean

      Indicated whether the elements of the parent item should be marked as grouped.

    Returns string

    The rendered HTML string.

  • resetValue(silent?: boolean): void
  • Resets the input.

    Parameters

    • Optional silent: boolean

      true to suppress triggering event listeners, or false otherwise.

    Returns void

  • resolveItemIndex(item: JQuery<HTMLElement>): number
  • Finds the index of the given selectable option.

    Parameters

    • item: JQuery<HTMLElement>

      One of the available selectable options.

    Returns number

    The index of the given item.

  • revert(): void
  • Unselect the selected item, if any, and select the please select option.

    Returns void

  • selectItem(item: JQuery<HTMLElement>, silent?: boolean): void
  • Callback for when the user selects an item with the mouse.

    Parameters

    • item: JQuery<HTMLElement>

      The option to select.

    • Optional silent: boolean

      true to suppress triggering event listeners, or false otherwise.

    Returns void

  • selectValue(value: string): void
  • Selects the option with the given value.

    Parameters

    • value: string

      Value of the option to select.

    Returns void

  • setLabel(value: string): void
  • Sets the label text that indicates the currently selected item to the item with the given value.

    Parameters

    • value: string

      Value of the item that was selected.

    Returns void

  • setQuerying(state: boolean): void
  • Sets the querying state.

    Parameters

    • state: boolean

      Querying state to set.

    Returns void

  • setupFilterMatcher(): void
  • Finds and stores the filter function which is to be used for filtering the options of this select one menu.

    Returns void

  • show(): void
  • Brings up the overlay panel with the available selectable options.

    Returns void

  • startsWithFilter(value: string, filter: string): boolean
  • Implementation of a PrimeFaces.widget.SelectOneMenu.FilterFunction that matches the given option when it starts with the given search text.

    Parameters

    • value: string

      Text of an option.

    • filter: string

      Value of the filter.

    Returns boolean

    true when the text of the options starts with the filter value, or false otherwise.

  • syncTitle(option: JQuery<HTMLElement>): void
  • Adjust the value of the title attribute to match selected option.

    Parameters

    • option: JQuery<HTMLElement>

      The option that was selected.

    Returns void

  • triggerChange(edited: boolean): void
  • Triggers the event listeners when the value of this widget changed.

    Parameters

    • edited: boolean

      Whether the value was edited by the user. If it was, checks which option is now selected.

    Returns void

  • unbindEvents(): void
  • Removes some event listeners when this widget was disabled.

    Returns void

  • unbindPanelEvents(): void
  • Unbind all panel event listeners

    Returns void

  • updateFloatLabel(input: undefined | JQuery<HTMLElement>): void
  • Handles floating label CSS if wrapped in a floating label.

    Parameters

    • input: undefined | JQuery<HTMLElement>

      the input

    Returns void

  • updatePlaceholderClass(add: boolean): void
  • Updates the style class of the label that indicates the currently selected item.

    Parameters

    • add: boolean

      true if a placeholder should be displayed, or false otherwise.

    Returns void

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