/*!
 * ObjectOriented UserInterface LabeledElement class.
 *
 * @copyright 2011-2013 OOJS Team and others; see AUTHORS.txt
 * @license The MIT License (MIT); see LICENSE.txt
 */

/**
 * Element containing a label.
 *
 * @class
 * @abstract
 *
 * @constructor
 * @param {jQuery} $label Label node, assigned to #$label
 * @param {Object} [config] Configuration options
 * @cfg {jQuery|string} [label=''] Label text
 */
OO.ui.LabeledElement = function OoUiLabeledElement( $label, config ) {
	// Config intialization
	config = config || {};

	// Properties
	this.$label = $label;
	this.label = null;

	// Initialization
	this.$label.addClass( 'oo-ui-labeledElement-label' );
	this.setLabel( config.label );
};

/* Static Properties */

OO.ui.LabeledElement.static = {};

/* Methods */

/**
 * Set the label.
 *
 * @method
 * @param {jQuery|string} [value] jQuery HTML node selection or string text value to use for label
 * @chainable
 */
OO.ui.LabeledElement.prototype.setLabel = function ( value ) {
	var empty = false;

	if ( typeof value === 'string' && value.trim() ) {
		this.$label.text( value );
		this.label = value;
	} else if ( value instanceof jQuery ) {
		this.$label.empty().append( value );
		this.label = value;
	} else {
		this.$label.empty();
		this.label = null;
		empty = true;
	}
	this.$label[empty ? 'addClass' : 'removeClass']( 'oo-ui-labeledElement-empty' );

	return this;
};

/**
 * Fit the label.
 *
 * @method
 * @chainable
 */
OO.ui.LabeledElement.prototype.fitLabel = function () {
	if ( this.$label.autoEllipsis ) {
		this.$label.autoEllipsis( { 'hasSpan': false, 'tooltip': true } );
	}
	return this;
};