1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5cr.define('options.internet', function() { 6 /** @const */ var EditableTextField = options.EditableTextField; 7 8 /** 9 * The regular expression that matches an IP address. String to match against 10 * should have all whitespace stripped already. 11 * @const 12 * @type {RegExp} 13 */ 14 var singleIp_ = /^([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)$/; 15 16 /** 17 * Creates a new field specifically for entering IP addresses. 18 * @constructor 19 */ 20 function IPAddressField() { 21 var el = cr.doc.createElement('div'); 22 IPAddressField.decorate(el); 23 return el; 24 } 25 26 /** 27 * Decorates an element as a inline-editable list item. Note that this is 28 * a subclass of IPAddressField. 29 * @param {!HTMLElement} el The element to decorate. 30 */ 31 IPAddressField.decorate = function(el) { 32 el.__proto__ = IPAddressField.prototype; 33 el.decorate(); 34 }; 35 36 IPAddressField.prototype = { 37 __proto__: EditableTextField.prototype, 38 39 /** @override */ 40 decorate: function() { 41 EditableTextField.prototype.decorate.call(this); 42 }, 43 44 /** 45 * Indicates whether or not empty values are allowed. 46 * @type {boolean} 47 */ 48 get allowEmpty() { 49 return this.hasAttribute('allow-empty'); 50 }, 51 52 /** @override */ 53 get currentInputIsValid() { 54 if (!this.editField.value && this.allowEmpty) 55 return true; 56 57 // Make sure it's only got numbers and ".", there are the correct 58 // count of them, and they are all within the correct range. 59 var fieldValue = this.editField.value.replace(/\s/g, ''); 60 var matches = singleIp_.exec(fieldValue); 61 var rangeCorrect = true; 62 if (matches != null) { 63 for (var i = 1; i < matches.length; ++i) { 64 var value = parseInt(matches[i], 10); 65 if (value < 0 || value > 255) { 66 rangeCorrect = false; 67 break; 68 } 69 } 70 } 71 return this.editField.validity.valid && matches != null && 72 rangeCorrect && matches.length == 5; 73 }, 74 75 /** @override */ 76 get hasBeenEdited() { 77 return this.editField.value != this.model.value; 78 }, 79 80 /** 81 * Overrides superclass to mutate the input during a successful commit. For 82 * the purposes of entering IP addresses, this just means stripping off 83 * whitespace and leading zeros from each of the octets so that they conform 84 * to the normal format for IP addresses. 85 * @override 86 * @param {string} value Input IP address to be mutated. 87 * @return {string} mutated IP address. 88 */ 89 mutateInput: function(value) { 90 if (!value) 91 return value; 92 93 var fieldValue = value.replace(/\s/g, ''); 94 var matches = singleIp_.exec(fieldValue); 95 var result = []; 96 97 // If we got this far, matches shouldn't be null, but make sure. 98 if (matches != null) { 99 // starting at one because the first match element contains the entire 100 // match, and we don't care about that. 101 for (var i = 1; i < matches.length; ++i) 102 result.push(parseInt(matches[i], 10)); 103 } 104 return result.join('.'); 105 }, 106 }; 107 108 return { 109 IPAddressField: IPAddressField, 110 }; 111}); 112