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/**
* ToggleWidget implements basic behavior of widgets with an on/off state.
* Please see OO.ui.ToggleButtonWidget and OO.ui.ToggleSwitchWidget for examples.
*
* @abstract
* @class
* @extends OO.ui.Widget
*
* @constructor
* @param {Object} [config] Configuration options
* @cfg {boolean} [value=false] The toggle’s initial on/off state.
* By default, the toggle is in the 'off' state.
*/
OO.ui.ToggleWidget = function OoUiToggleWidget( config ) {
// Configuration initialization
config = config || {};
// Parent constructor
OO.ui.ToggleWidget.super.call( this, config );
// Properties
this.value = null;
// Initialization
this.$element.addClass( 'oo-ui-toggleWidget' );
this.setValue( !!config.value );
};
/* Setup */
OO.inheritClass( OO.ui.ToggleWidget, OO.ui.Widget );
/* Events */
/**
* @event change
*
* A change event is emitted when the on/off state of the toggle changes.
*
* @param {boolean} value Value representing the new state of the toggle
*/
/* Methods */
/**
* Get the value representing the toggle’s state.
*
* @return {boolean} The on/off state of the toggle
*/
OO.ui.ToggleWidget.prototype.getValue = function () {
return this.value;
};
/**
* Set the state of the toggle: `true` for 'on', `false' for 'off'.
*
* @param {boolean} value The state of the toggle
* @fires change
* @chainable
*/
OO.ui.ToggleWidget.prototype.setValue = function ( value ) {
value = !!value;
if ( this.value !== value ) {
this.value = value;
this.emit( 'change', value );
this.$element.toggleClass( 'oo-ui-toggleWidget-on', value );
this.$element.toggleClass( 'oo-ui-toggleWidget-off', !value );
this.$element.attr( 'aria-checked', value.toString() );
}
return this;
};
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