OO.ui.DropdownWidget

Extends

Constructor

DropdownWidgets are not menus themselves, rather they contain a menu of options created with OO.ui.MenuOptionWidget. The DropdownWidget takes care of opening and displaying the menu so that users can interact with it.

If you want to use this within an HTML form, such as a OO.ui.FormLayout, use OO.ui.DropdownInputWidget instead.

For more information, please see the OOUI documentation on MediaWiki.

Example

// A DropdownWidget with a menu that contains three options.
    const dropdown = new OO.ui.DropdownWidget( {
        label: 'Dropdown menu: Select a menu option',
        menu: {
            items: [
                new OO.ui.MenuOptionWidget( {
                    data: 'a',
                    label: 'First'
                } ),
                new OO.ui.MenuOptionWidget( {
                    data: 'b',
                    label: 'Second'
                } ),
                new OO.ui.MenuOptionWidget( {
                    data: 'c',
                    label: 'Third'
                } )
            ]
        }
    } );

    $( document.body ).append( dropdown.$element );

    dropdown.getMenu().selectItemByData( 'b' );

    dropdown.getMenu().findSelectedItem().getData(); // Returns 'b'.

Parameters:

Name Type Attributes Description
config Object optional

Configuration options

Properties:
Name Type Attributes Description
menu Object optional

Configuration options to pass to menu select widget.
$overlay jQuery | boolean optional

Render the menu into a separate layer. This configuration is useful in cases where the expanded menu is larger than its containing <div>. The specified overlay layer is usually on top of the containing <div> and has a larger area. By default, the menu uses relative positioning. Pass 'true' to use the default overlay. See https://www.mediawiki.org/wiki/OOUI/Concepts#Overlays.
Mixes in:
Source:

DropdownWidgets are not menus themselves, rather they contain a menu of options created with OO.ui.MenuOptionWidget.

Properties

icon #

The symbolic name of the icon (e.g., ‘remove’ or ‘menu’), or a map of symbolic names. A map is used for i18n purposes and contains a default icon name and additional names keyed by language code. The default name is used when no icon is keyed by the user's language.

Example of an i18n map:

{ default: 'bold-a', en: 'bold-b', de: 'bold-f' }

Note: the static property will be overridden if the #icon configuration is used.

Properties:

Type Description
Object | string
Mixes in:
Source:
The symbolic name of the icon (e.g., ‘remove’ or ‘menu’), or a map of symbolic names.

iconTitle #

The icon title, displayed when users move the mouse over the icon. The value can be text, a function that returns title text, or null for no title.

The static property will be overridden if the #iconTitle configuration is used.

Properties:

Type Description
string | function | null
Mixes in:
Source:
The icon title, displayed when users move the mouse over the icon.

indicator #

Symbolic name of the indicator (e.g. ‘required’ or ‘down’). The static property will be overridden if the #indicator configuration is used.

Properties:

Type Description
string | null
Mixes in:
Source:
Symbolic name of the indicator (e.g.

indicatorTitle #

A text string used as the indicator title, a function that returns title text, or null for no title. The static property will be overridden if the #indicatorTitle configuration is used.

Properties:

Type Description
string | function | null
Mixes in:
Source:

A text string used as the indicator title, a function that returns title text, or null for no title.

label #

The label text. The label can be specified as a plaintext string, a function that will produce a string (will be resolved on construction time), or null for no label. The static value will be overridden if a label is specified with the #label config option.

Properties:

Type Description
string | function | null
Mixes in:
Source:
The label text.

title #

The title text, a function that returns text, or null for no title. The value of the static property is overridden if the #title config option is used.

If the element has a default title (e.g. <input type=file>), null will allow that title to be shown. Use empty string to suppress it.

Properties:

Type Description
string | function | null
Mixes in:
Source:
The title text, a function that returns text, or null for no title.

Methods

getClosestScrollableElementContainer() → {HTMLElement} #

Get closest scrollable container.

Inherited from:
Source:

Returns:

Closest scrollable container

Type
HTMLElement
Get closest scrollable container.

getData() → {Mixed} #

Get element data.

Inherited from:
Source:

Returns:

Element data

Type
Mixed
Get element data.

getElementDocument() → {HTMLDocument} #

Get the DOM document.

Inherited from:
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Returns:

Document object

Type
HTMLDocument
Get the DOM document.

getElementGroup() → {OO.ui.mixin.GroupElement|null} #

Get group element is in.

Inherited from:
Source:

Returns:

Group element, null if none

Type
OO.ui.mixin.GroupElement | null
Get group element is in.

getElementId() → {string} #

Ensure that the element has an 'id' attribute, setting it to an unique value if it's missing, and return its value.

Inherited from:
Source:

Returns:

Type
string

Ensure that the element has an 'id' attribute, setting it to an unique value if it's missing, and return its value.

getElementWindow() → {Window} #

Get the DOM window.

Inherited from:
Source:

Returns:

Window object

Type
Window
Get the DOM window.

getInputId() → {string|null} #

Get an ID of a labelable node which is part of this widget, if any, to be used for <label for> value.

If this function returns null, the widget should have a meaningful #simulateLabelClick method instead.

Inherited from:
Source:

Returns:

The ID of the labelable element

Type
string | null

Get an ID of a labelable node which is part of this widget, if any, to be used for <label for> value.

getMenu() → {OO.ui.MenuSelectWidget} #

Get the menu.

Source:

Returns:

Menu of widget

Type
OO.ui.MenuSelectWidget
Get the menu.

getTagName() → {string} #

Get the HTML tag name.

Override this method to base the result on instance information.

Inherited from:
Source:

Returns:

HTML tag name

Type
string
Get the HTML tag name.

highlightQuery(text, query, compare, combineMarks) → {jQuery} #

Highlight the first occurrence of the query in the given text

Parameters:

Name Type Attributes Default Description
text string

Text
query string

Query to find
compare function optional

Optional string comparator, e.g. Intl.Collator().compare
combineMarks boolean optional
 false

Pull combining marks into highlighted text
Mixes in:
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Returns:

Text with the first match of the query sub-string wrapped in highlighted span

Type
jQuery

Highlight the first occurrence of the query in the given text

.

isDisabled() → {boolean} #

Check if the widget is disabled.

Inherited from:
Source:

Returns:

Widget is disabled

Type
boolean
Check if the widget is disabled.

isElementAttached() → {boolean} #

Check if the element is attached to the DOM

Inherited from:
Source:

Returns:

The element is attached to the DOM

Type
boolean

Check if the element is attached to the DOM

.

isVisible() → {boolean} #

Check if element is visible.

Inherited from:
Source:

Returns:

element is visible

Type
boolean
Check if element is visible.

restorePreInfuseState(state)protected #

Restore the pre-infusion dynamic state for this widget.

This method is called after #$element has been inserted into DOM. The parameter is the return value of #gatherPreInfuseState.

Parameters:

Name Type Description
state Object
Inherited from:
Source:
Restore the pre-infusion dynamic state for this widget.

scrollElementIntoView(config) → {jQuery.Promise} #

Scroll element into view.

Parameters:

Name Type Attributes Description
config Object optional

Configuration options
Inherited from:
Source:

Returns:

Promise which resolves when the scroll is complete

Type
jQuery.Promise
Scroll element into view.

setData(data) → {OO.ui.Element} #

Set element data.

Parameters:

Name Type Description
data Mixed

Element data
Inherited from:
Source:

Returns:

The element, for chaining

Type
OO.ui.Element
Set element data.

setDisabled(disabled) → {OO.ui.Widget} #

Set the 'disabled' state of the widget.

When a widget is disabled, it cannot be used and its appearance is updated to reflect this state.

Parameters:

Name Type Attributes Default Description
disabled boolean optional
 false

Disable widget
Inherited from:
Source:

Returns:

The widget, for chaining

Type
OO.ui.Widget
Set the 'disabled' state of the widget.

setElementGroup(group) → {OO.ui.Element} #

Set group element is in.

Parameters:

Name Type Description
group OO.ui.mixin.GroupElement | null

Group element, null if none
Inherited from:
Source:

Returns:

The element, for chaining

Type
OO.ui.Element
Set group element is in.

setElementId(id) → {OO.ui.Element} #

Set the element has an 'id' attribute.

Parameters:

Name Type Description
id string
Inherited from:
Source:

Returns:

The element, for chaining

Type
OO.ui.Element
Set the element has an 'id' attribute.

setLabelledBy(id) #

Set the element with the given ID as a label for this widget.

Parameters:

Name Type Description
id string | null
Overrides:
Source:
Set the element with the given ID as a label for this widget.

simulateLabelClick() #

Simulate the behavior of clicking on a label (a HTML <label> element) bound to this input. HTML only allows <label> to act on specific "labelable" elements; complex widgets might need to override this method to provide intuitive, accessible behavior.

By default, this does nothing. OO.ui.mixin.TabIndexedElement overrides it for focusable widgets. Individual widgets may override it too.

This method is called by OO.ui.LabelWidget and OO.ui.FieldLayout. It should not be called directly.

Inherited from:
Source:
Simulate the behavior of clicking on a label (a HTML <label> element) bound to this input.

supports(methods) → {boolean} #

Check if element supports one or more methods.

Parameters:

Name Type Description
methods string | Array.<string>

Method or list of methods to check
Inherited from:
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Returns:

All methods are supported

Type
boolean
Check if element supports one or more methods.

toggle(show) → {OO.ui.Element} #

Toggle visibility of an element.

Parameters:

Name Type Attributes Description
show boolean optional

Make element visible, omit to toggle visibility
Inherited from:
Source:

Fires:

Returns:

The element, for chaining

Type
OO.ui.Element
Toggle visibility of an element.

updateDisabled() → {OO.ui.Widget} #

Update the disabled state, in case of changes in parent widget.

Inherited from:
Source:

Returns:

The widget, for chaining

Type
OO.ui.Widget
Update the disabled state, in case of changes in parent widget.

updateThemeClasses() #

Update the theme-provided classes.

This is called in element mixins and widget classes any time state changes. Updating is debounced, minimizing overhead of changing multiple attributes and guaranteeing that theme updates do not occur within an element's constructor

Inherited from:
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Update the theme-provided classes.

Events

disable(disabled) #

A 'disable' event is emitted when the disabled state of the widget changes (i.e. on disable and enable).

Parameters:

Name Type Description
disabled boolean

Widget is disabled
Inherited from:
Source:

A 'disable' event is emitted when the disabled state of the widget changes (i.e.

toggle(visible) #

A 'toggle' event is emitted when the visibility of the widget changes.

Parameters:

Name Type Description
visible boolean

Widget is visible
Inherited from:
Source:
A 'toggle' event is emitted when the visibility of the widget changes.