mediawiki-extensions-Visual.../modules/ve/ui/widgets/ve.ui.TextInputWidget.js
Trevor Parscal c32564f36d Text input widget enter event
Objective:

* Add an event to single line text input widgets to detect when the enter
  key has been pressed

Changes:

ve.ui.TextInputWidget.js
* Retain value of multiline config option
* Add key press handler to detect pressing of enter key
* Emit 'enter' event when enter key is pressed if input is single line

Bonus:

* Add missing documentation for multiline config option

Change-Id: Id9c64343f4a2ea8f0f45213fd2b59ca87c805b24
2013-06-11 19:21:32 +00:00

129 lines
2.8 KiB
JavaScript

/*!
* VisualEditor UserInterface TextInputWidget class.
*
* @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/**
* Creates an ve.ui.TextInputWidget object.
*
* @class
* @extends ve.ui.InputWidget
*
* @constructor
* @param {Object} [config] Config options
* @cfg {string} [placeholder] Placeholder text
* @cfg {string} [icon] Symbolic name of icon
* @cfg {boolean} [multiline=false] Allow multiple lines of text
*/
ve.ui.TextInputWidget = function VeUiTextInputWidget( config ) {
// Parent constructor
ve.ui.InputWidget.call( this, config );
// Properties
this.pending = 0;
this.multiline = !!config.multiline;
// Events
this.$input.on( 'keypress', ve.bind( this.onKeyPress, this ) );
// Initialization
this.$.addClass( 've-ui-textInputWidget' );
if ( config.icon ) {
this.$.addClass( 've-ui-textInputWidget-decorated' );
this.$.append(
$( '<span>' )
.addClass( 've-ui-textInputWidget-icon ve-ui-icon-' + config.icon )
.mousedown( ve.bind( function () {
this.$input.focus();
return false;
}, this ) )
);
}
if ( config.placeholder ) {
this.$input.attr( 'placeholder', config.placeholder );
}
};
/* Inheritance */
ve.inheritClass( ve.ui.TextInputWidget, ve.ui.InputWidget );
/* Events */
/**
* User presses enter inside the text box.
*
* Not called if input is multiline.
*
* @event enter
*/
/* Methods */
/**
* Handles key press events.
*
* @param {jQuery.Event} e Key press event
* @emits enter If enter key is pressed and input is not multiline
*/
ve.ui.TextInputWidget.prototype.onKeyPress = function ( e ) {
if ( e.which === ve.Keys.ENTER && !this.multiline ) {
this.emit( 'enter' );
}
};
/**
* Get input element.
*
* @method
* @param {Object} [config] Config options
* @return {jQuery} Input element
*/
ve.ui.TextInputWidget.prototype.getInputElement = function ( config ) {
return config.multiline ? this.$$( '<textarea>' ) : this.$$( '<input>' ).attr( 'type', 'text' );
};
/* Methods */
/**
* Checks if input is pending.
*
* @method
* @returns {boolean} Input is pending
*/
ve.ui.TextInputWidget.prototype.isPending = function () {
return !!this.pending;
};
/**
* Increases the pending stack.
*
* @method
* @chainable
*/
ve.ui.TextInputWidget.prototype.pushPending = function () {
this.pending++;
this.$.addClass( 've-ui-textInputWidget-pending' );
this.$input.addClass( 've-ui-texture-pending' );
return this;
};
/**
* Reduces the pending stack.
*
* Clamped at zero.
*
* @method
* @chainable
*/
ve.ui.TextInputWidget.prototype.popPending = function () {
this.pending = Math.max( 0, this.pending - 1 );
if ( !this.pending ) {
this.$.removeClass( 've-ui-textInputWidget-pending' );
this.$input.removeClass( 've-ui-texture-pending' );
}
return this;
};