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/* jshint jquery: true, strict: false */ |
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/* global klass: false, jQuery: false */ |
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var VatNumberCheckObject = { |
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/** |
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* A css class selector to trigger `check` logic. |
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* |
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* @type {string} |
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*/ |
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elementSelector: '', |
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/** |
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* An url to use for checking. |
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* |
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* @type {string} |
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*/ |
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checkUrl: '', |
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/** |
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* An object with (status) images to use as background after checking. |
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* |
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* @type {Object} |
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*/ |
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checkImages: {}, |
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/** |
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* Constructor. |
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* |
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* Initializes instance variables and attaches a blur event. |
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* |
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* Possible keys: |
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* - ok |
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* - failure |
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* - serviceUnavailable |
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* |
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* @param {Object} options An options object |
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*/ |
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initialize: function (options) { |
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this.elementSelector = options.elementSelector || this.elementSelector; |
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this.checkUrl = options.checkUrl || this.checkUrl; |
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this.checkImages = options.checkImages || this.checkImages; |
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jQuery(this.elementSelector).blur(jQuery.proxy(this._check, this)); |
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}, |
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/** |
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* A blur event handler. |
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* |
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* Requests the check url and displays it's status. |
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* |
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* @access protected |
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* @param {Object} event |
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*/ |
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_check: function (event) { |
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var element = jQuery(event.target); |
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jQuery.ajax({ |
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type: 'POST', |
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url: this.checkUrl, |
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beforeSend: jQuery.proxy(this._beforeSend, this, element), |
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data: { |
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vatNumber: element.val() |
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} |
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}).done( |
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jQuery.proxy(this._done, this, element) |
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).fail( |
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jQuery.proxy(this._fail, this, element) |
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); |
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}, |
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/** |
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* A request handler for `done`. |
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* |
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* @access protected |
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* @param {Object} element A DOM element |
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* @param {Object} result Request data |
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*/ |
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_done: function (element, result) { |
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if (result.status === 'ok') { |
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this._setBackground(element, this.checkImages.ok); |
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} else { |
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if (result.vatNumber.length === 0) { |
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this._setBackground(element); |
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} else { |
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this._setBackground(element, this.checkImages.failure); |
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} |
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} |
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element.val(result.vatNumber); |
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}, |
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/** |
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* A request handler for `fail`. |
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* |
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* @access protected |
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* @param {Object} element A DOM element |
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*/ |
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_fail: function (element) { |
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this._setBackground(element, this.checkImages.serviceUnavailable); |
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}, |
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/** |
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* A request handler for `beforeSend`. |
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* |
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* @access protected |
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* @param {Object} element A DOM element |
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*/ |
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_beforeSend: function (element) { |
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this._setBackground(element, ''); |
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}, |
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/** |
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* Changes the background image of a given element. |
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* |
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* @access protected |
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* @param {Object} element A DOM element |
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* @param {string} image An image (url) |
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*/ |
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_setBackground: function (element, image) { |
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var backgroundImage; |
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if (image) { |
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backgroundImage = 'url("' + image + '")'; |
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} else { |
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backgroundImage = 'none'; |
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} |
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element.css({ |
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backgroundImage: backgroundImage, |
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backgroundRepeat: 'no-repeat', |
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backgroundPosition: 'right' |
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}); |
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} |
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}; |
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var VatNumberCheck = klass(VatNumberCheckObject); |
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Oefenweb /
cakephp-vat-number-check
