mediawiki-extensions-Visual.../modules/ve/ui/widgets/ve.ui.InputWidget.js
Roan Kattouw 8e8ddd9cad Fix exception in InputWidget when config.value isn't set
Change-Id: I0d41d8b39aa6777f206ec47b8ceefff012e2b00b
2013-06-10 15:52:25 -07:00

163 lines
3.6 KiB
JavaScript

/*!
* VisualEditor UserInterface InputWidget class.
*
* @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/**
* Creates an ve.ui.InputWidget object.
*
* @class
* @abstract
* @extends ve.ui.Widget
*
* @constructor
* @param {Object} [config] Config options
* @cfg {string} [name=''] HTML input name
* @cfg {string} [value=''] Input value
* @cfg {boolean} [readOnly=false] Prevent changes
*/
ve.ui.InputWidget = function VeUiInputWidget( config ) {
// Config intialization
config = ve.extendObject( { 'readOnly': false }, config );
// Parent constructor
ve.ui.Widget.call( this, config );
// Properties
this.$input = this.getInputElement( config );
this.value = config.value === undefined ? '' : config.value;
this.readonly = false;
// Events
this.$input.on( 'keydown mouseup cut paste change input select', ve.bind( this.onEdit, this ) );
// Initialization
this.$input.attr( 'name', config.name ).val( this.value );
this.setReadOnly( config.readOnly );
this.$.addClass( 've-ui-inputWidget' ).append( this.$input );
};
/* Inheritance */
ve.inheritClass( ve.ui.InputWidget, ve.ui.Widget );
/* Events */
/**
* @event change
* @param value
*/
/* Methods */
/**
* Get input element.
*
* @method
* @param {Object} [config] Config options
* @return {jQuery} Input element
*/
ve.ui.InputWidget.prototype.getInputElement = function () {
return this.$$( '<input>' );
};
/**
* Handle potentially value-changing events.
*
* @method
* @param {jQuery.Event} e Key down, mouse up, cut, paste, change, input, or select event
*/
ve.ui.InputWidget.prototype.onEdit = function () {
if ( !this.disabled ) {
// Allow the stack to clear so the value will be updated
setTimeout( ve.bind( function () {
this.setValue( this.$input.val() );
}, this ) );
}
};
/**
* Get the value of the input.
*
* @method
* @returns {string} Input value
*/
ve.ui.InputWidget.prototype.getValue = function () {
return this.value;
};
/**
* Sets the direction of the current input, either RTL or LTR
*
* @method
* @param {boolean} isRTL
*/
ve.ui.InputWidget.prototype.setRTL = function ( isRTL ) {
if ( isRTL ) {
this.$input.removeClass( 've-ui-ltr' );
this.$input.addClass( 've-ui-rtl' );
} else {
this.$input.removeClass( 've-ui-rtl' );
this.$input.addClass( 've-ui-ltr' );
}
};
/**
* Set the value of the input.
*
* @method
* @param {string} value New value
* @emits change
* @chainable
*/
ve.ui.InputWidget.prototype.setValue = function ( value ) {
var domValue = this.$input.val();
value = this.sanitizeValue( value );
if ( this.value !== value ) {
this.value = value;
// Only update the DOM if we must
if ( domValue !== this.value ) {
this.$input.val( this.value );
}
this.emit( 'change', this.value );
}
return this;
};
/**
* Sanitize incoming value.
*
* @method
* @param {string} value Original value
* @returns {string} Sanitized value
*/
ve.ui.InputWidget.prototype.sanitizeValue = function ( value ) {
return String( value );
};
/**
* Check if the widget is read-only.
*
* @method
* @param {boolean} Input is read-only
*/
ve.ui.InputWidget.prototype.isReadOnly = function () {
return this.readOnly;
};
/**
* Set the read-only state of the widget.
*
* This should probably change the widgets's appearance and prevent it from being used.
*
* @method
* @param {boolean} state Make input read-only
* @chainable
*/
ve.ui.InputWidget.prototype.setReadOnly = function ( state ) {
this.readOnly = !!state;
this.$input.prop( 'readonly', this.readOnly );
return this;
};