<!DOCTYPE html>
<html ng-app="myApp" lang="en">
<head>
<meta charset="utf-8">
<title>I am Tom</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.1/angular.js"></script>
<script type="text/javascript" src="js/angularjs/mask.js"></script>
<script type="text/javascript" src="js/angularjs/module.js"></script>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body ng-controller="myController">
<div class="divito">
<h3 clas="h3">Please Input following text: I am Tom</h3>
<textarea class="textarea" style="resize: none" cols="30" row="2" ui-mask="i am tom" ng-model="greeting" data-ng-trim="fasle" ng-trim="false">
</textarea>
</div>
</body>
</html>
的style.css
body{
background-color: #fbfbfb;
}
.textarea{
width:600px;
height:60px;
text-align: center;
font-size: 43px;
border-radius: 10px;
}
.divito {
margin: 200px 30% 0 33%;
position: relative;
}
textarea.ng-invalid {
border:2px solid #EA4335;
}
textarea.ng-valid {
background-color:lightgreen;
}
这是我的script.js
var app = angular.module('myApp',[]);
app.controller('myController', ['$scope', function ($scope) {
$scope.greeting = '123456789';
}]).directive('uiMask', [
function () {
var maskDefinitions = {
// 'I': /[I-i]/,
// '2': /[a]/,
// '3': /[m]/,
// '4': /[T]/,
// '5': /[o]/
'a': /[a]/, 'A': /[A]/,
'b': /[b]/, 'B': /[B]/,
'c': /[c]/, 'C': /[C]/,
'd': /[d]/, 'D': /[D]/,
'e': /[e]/, 'E': /[E]/,
'f': /[f]/, 'F': /[F]/,
'g': /[g]/, 'G': /[G]/,
'h': /[h]/, 'H': /[H]/,
'i': /[i]/, 'I': /[I]/,
'j': /[j]/, 'J': /[J]/,
'k': /[h]/, 'K': /[K]/,
'l': /[l]/, 'L': /[L]/,
'm': /[m]/, 'M': /[M]/,
'n': /[n]/, 'N': /[N]/,
'o': /[o]/, 'O': /[O]/,
'p': /[p]/, 'P': /[P]/,
'q': /[q]/, 'Q': /[Q]/,
'r': /[r]/, 'R': /[R]/,
's': /[s]/, 'S': /[S]/,
't': /[t]/, 'T': /[T]/,
'u': /[u]/, 'U': /[U]/,
'v': /[v]/, 'V': /[V]/,
'w': /[w]/, 'W': /[W]/,
'x': /[x]/, 'X': /[X]/,
'y': /[y]/, 'Y': /[Y]/,
'z': /[z]/, 'Z': /[Z]/
};
return {
priority: 100,
require: 'ngModel',
restrict: 'A',
link: function (scope, iElement, iAttrs, controller) {
//console.log('init');
var maskProcessed = false, eventsBound = false,
maskCaretMap, maskPatterns, maskPlaceholder, maskComponents,
validValue,
// Minimum required length of the value to be considered valid
minRequiredLength,
value, valueMasked, isValid,
// Vars for initializing/uninitializing
originalPlaceholder = iAttrs.placeholder,
originalMaxlength = iAttrs.maxlength,
// Vars used exclusively in eventHandler()
oldValue, oldValueUnmasked, oldCaretPosition, oldSelectionLength;
function initialize(maskAttr) {
if (!angular.isDefined(maskAttr)){
return uninitialize();
}
processRawMask(maskAttr);
if (!maskProcessed){
return uninitialize();
}
initializeElement();
bindEventListeners();
}
function formatter(fromModelValue) {
if (!maskProcessed){
return fromModelValue;
}
value = unmaskValue(fromModelValue || '');
// isValid = validateValue(value);
// controller.$setValidity('mask', isValid);
if (isValid) validValue = value;
//console.log('formatter valid:'+validValue);
return isValid && value.length ? maskValue(value) : undefined;
}
function parser(fromViewValue) {
if (!maskProcessed){
return fromViewValue;
}
value = unmaskValue(fromViewValue || '');
isValid = validateValue(value);
viewValue = value.length ? maskValue(value) : '';
// We have to set viewValue manually as the reformatting of the input
// value performed by eventHandler() doesn't happen until after
// this parser is called, which causes what the user sees in the input
// to be out-of-sync with what the controller's $viewValue is set to.
controller.$viewValue = viewValue;
controller.$setValidity('mask', isValid);
if (value === '' && controller.$error.required !== undefined){
controller.$setValidity('required', false);
}
if (isValid) validValue = value;
//console.log('parser valid:'+validValue);
return isValid ? value : undefined;
}
iAttrs.$observe('uiMask', initialize);
controller.$formatters.push(formatter);
controller.$parsers.push(parser);
function uninitialize() {
maskProcessed = false;
unbindEventListeners();
if (angular.isDefined(originalPlaceholder)){
iElement.attr('placeholder', originalPlaceholder);
}else{
iElement.removeAttr('placeholder');
}
if (angular.isDefined(originalMaxlength)){
iElement.attr('maxlength', originalMaxlength);
}else{
iElement.removeAttr('maxlength');
}
iElement.val(controller.$modelValue);
controller.$viewValue = controller.$modelValue;
return false;
}
function initializeElement() {
value = oldValueUnmasked = unmaskValue(controller.$modelValue || '');
valueMasked = oldValue = maskValue(value);
isValid = validateValue(value);
viewValue = isValid && value.length ? valueMasked : '';
if (iAttrs.maxlength){ // Double maxlength to allow pasting new val at end of mask
iElement.attr('maxlength', maskCaretMap[maskCaretMap.length-1]*2);
}
iElement.attr('placeholder', maskPlaceholder);
iElement.val(viewValue);
controller.$viewValue = viewValue;
// Not using $setViewValue so we don't clobber the model value and dirty the form
// without any kind of user interaction.
}
function bindEventListeners() {
if (eventsBound){
return true;
}
iElement.bind('blur', blurHandler);
iElement.bind('mousedown mouseup', mouseDownUpHandler);
iElement.bind('input keyup click', eventHandler);
eventsBound = true;
}
// function unbindEventListeners() {
// if (!eventsBound){
// return true;
// }
// iElement.unbind('blur', blurHandler);
// iElement.unbind('mousedown', mouseDownUpHandler);
// iElement.unbind('mouseup', mouseDownUpHandler);
// iElement.unbind('input', eventHandler);
// iElement.unbind('keyup', eventHandler);
// iElement.unbind('click', eventHandler);
// eventsBound = false;
// }
function validateValue(value) {
// Zero-length value validity is ngRequired's determination
return value.length ? value.length >= minRequiredLength : true;
}
function unmaskValue(value) {
var valueUnmasked = '',
maskPatternsCopy = maskPatterns.slice();
// Preprocess by stripping mask components from value
value = value.toString();
angular.forEach(maskComponents, function(component, i) {
value = value.replace(component, '');
});
angular.forEach(value.split(''), function(chr, i) {
if (maskPatternsCopy.length && maskPatternsCopy[0].test(chr)) {
valueUnmasked += chr;
maskPatternsCopy.shift();
}
});
return valueUnmasked;
}
function maskValue(unmaskedValue) {
var valueMasked = '',
maskCaretMapCopy = maskCaretMap.slice();
angular.forEach(maskPlaceholder.split(''), function(chr, i) {
if (unmaskedValue.length && i === maskCaretMapCopy[0]) {
valueMasked += unmaskedValue.charAt(0) || '_';
unmaskedValue = unmaskedValue.substr(1);
maskCaretMapCopy.shift(); }
else{
valueMasked += chr;
}
});
return valueMasked;
}
function processRawMask(mask) {
var characterCount = 0;
maskCaretMap = [];
maskPatterns = [];
maskPlaceholder = '';
// No complex mask support for now...
// if (mask instanceof Array) {
// angular.forEach(mask, function(item, i) {
// if (item instanceof RegExp) {
// maskCaretMap.push(characterCount++);
// maskPlaceholder += '_';
// maskPatterns.push(item);
// }
// else if (typeof item == 'string') {
// angular.forEach(item.split(''), function(chr, i) {
// maskPlaceholder += chr;
// characterCount++;
// });
// }
// });
// }
// Otherwise it's a simple mask
// else
if (typeof mask === 'string') {
minRequiredLength = 0;
var isOptional = false;
angular.forEach(mask.split(''), function(chr, i) {
if (maskDefinitions[chr]) {
maskCaretMap.push(characterCount);
maskPlaceholder += '_';
maskPatterns.push(maskDefinitions[chr]);
characterCount++;
if (!isOptional) {
minRequiredLength++;
}
}
else if (chr === "?") {
isOptional = true;
}
else{
maskPlaceholder += chr;
characterCount++;
}
});
}
// Caret position immediately following last position is valid.
maskCaretMap.push(maskCaretMap.slice().pop() + 1);
// Generate array of mask components that will be stripped from a masked value
// before processing to prevent mask components from being added to the unmasked value.
// E.g., a mask pattern of '+7 9999' won't have the 7 bleed into the unmasked value.
// If a maskable char is followed by a mask char and has a mask
// char behind it, we'll split it into it's own component so if
// a user is aggressively deleting in the input and a char ahead
// of the maskable char gets deleted, we'll still be able to strip
// it in the unmaskValue() preprocessing.
maskComponents = maskPlaceholder.replace(/[_]+/g,'_').replace(/([^_]+)([a-zA-Z0-9])([^_])/g, '$1$2_$3').split('_');
maskProcessed = maskCaretMap.length > 1 ? true : false;
}
function blurHandler(e) {
oldCaretPosition = 0;
oldSelectionLength = 0;
if (!isValid || value.length === 0) {
valueMasked = '';
iElement.val('');
scope.$apply(function() {
controller.$setViewValue('');
});
}
}
function mouseDownUpHandler(e) {
if (e.type === 'mousedown'){
iElement.bind('mouseout', mouseoutHandler);
}else{
iElement.unbind('mouseout', mouseoutHandler);
}
}
iElement.bind('mousedown mouseup', mouseDownUpHandler);
function mouseoutHandler(e) {
oldSelectionLength = getSelectionLength(this);
iElement.unbind('mouseout', mouseoutHandler);
}
function eventHandler(e) {
e = e || {};
// Allows more efficient minification
var eventWhich = e.which,
eventType = e.type;
// Prevent shift and ctrl from mucking with old values
if (eventWhich === 16 || eventWhich === 91){ return true;}
var val = iElement.val(),
valOld = oldValue,
valMasked,
valUnmasked = unmaskValue(val),
valUnmaskedOld = oldValueUnmasked,
valAltered = false,
caretPos = getCaretPosition(this) || 0,
caretPosOld = oldCaretPosition || 0,
caretPosDelta = caretPos - caretPosOld,
caretPosMin = maskCaretMap[0],
caretPosMax = maskCaretMap[valUnmasked.length] || maskCaretMap.slice().shift(),
selectionLen = getSelectionLength(this),
selectionLenOld = oldSelectionLength || 0,
isSelected = selectionLen > 0,
wasSelected = selectionLenOld > 0,
// Case: Typing a character to overwrite a selection
isAddition = (val.length > valOld.length) || (selectionLenOld && val.length > valOld.length - selectionLenOld),
// Case: Delete and backspace behave identically on a selection
isDeletion = (val.length < valOld.length) || (selectionLenOld && val.length === valOld.length - selectionLenOld),
isSelection = (eventWhich >= 37 && eventWhich <= 40) && e.shiftKey, // Arrow key codes
isKeyLeftArrow = eventWhich === 37,
// Necessary due to "input" event not providing a key code
isKeyBackspace = eventWhich === 8 || (eventType !== 'keyup' && isDeletion && (caretPosDelta === -1)),
isKeyDelete = eventWhich === 46 || (eventType !== 'keyup' && isDeletion && (caretPosDelta === 0 ) && !wasSelected),
// Handles cases where caret is moved and placed in front of invalid maskCaretMap position. Logic below
// ensures that, on click or leftward caret placement, caret is moved leftward until directly right of
// non-mask character. Also applied to click since users are (arguably) more likely to backspace
// a character when clicking within a filled input.
caretBumpBack = (isKeyLeftArrow || isKeyBackspace || eventType === 'click') && caretPos > caretPosMin;
oldSelectionLength = selectionLen;
// These events don't require any action
if (isSelection || (isSelected && (eventType === 'click' || eventType === 'keyup'))){
return true;
}
// Value Handling
// ==============
// User attempted to delete but raw value was unaffected--correct this grievous offense
if ((eventType === 'input') && isDeletion && !wasSelected && valUnmasked === valUnmaskedOld) {
while (isKeyBackspace && caretPos > caretPosMin && !isValidCaretPosition(caretPos)){
caretPos--;
}
while (isKeyDelete && caretPos < caretPosMax && maskCaretMap.indexOf(caretPos) === -1){
caretPos++;
}
var charIndex = maskCaretMap.indexOf(caretPos);
// Strip out non-mask character that user would have deleted if mask hadn't been in the way.
valUnmasked = valUnmasked.substring(0, charIndex) + valUnmasked.substring(charIndex + 1);
valAltered = true;
}
// Update values
console.log(e);
console.log(String.fromCharCode(e.keyCode));
//console.log(String.fromCodePoint(e.keyCode));
//console.log("---> update values start");
//console.log("valUnmasked:" + valUnmasked);
//console.log("valMasked:" + valMasked);
valMasked = maskValue(valUnmasked);
oldValue = valMasked;
oldValueUnmasked = valUnmasked;
iElement.val(valMasked);
// Make sure caret is within min and max position limits
caretPos = caretPos > caretPosMax ? caretPosMax : caretPos < caretPosMin ? caretPosMin : caretPos;
// Scoot the caret back or forth until it's in a non-mask position and within min/max position limits
while (!isValidCaretPosition(caretPos) && caretPos > caretPosMin && caretPos < caretPosMax){
caretPos += caretBumpBack ? -1 : 1;
}
if ((caretBumpBack && caretPos < caretPosMax) || (isAddition && !isValidCaretPosition(caretPosOld))){
caretPos++;
}
oldCaretPosition = caretPos;
setCaretPosition(this, caretPos);
}
function isValidCaretPosition(pos) { return maskCaretMap.indexOf(pos) > -1; }
function getCaretPosition(input) {
if (input.selectionStart !== undefined){
return input.selectionStart;
}else if (document.selection) {
// Curse you IE
input.focus();
var selection = document.selection.createRange();
selection.moveStart('character', -input.value.length);
return selection.text.length;
}
}
function setCaretPosition(input, pos) {
if (input.offsetWidth === 0 || input.offsetHeight === 0){
return true; // Input's hidden
}
if (input.setSelectionRange) {
input.focus();
input.setSelectionRange(pos,pos); }
else if (input.createTextRange) {
// Curse you IE
var range = input.createTextRange();
range.collapse(true);
range.moveEnd('character', pos);
range.moveStart('character', pos);
range.select();
}
}
function getSelectionLength(input) {
if (input.selectionStart !== undefined){
return (input.selectionEnd - input.selectionStart);
}
if (document.selection){
return (document.selection.createRange().text.length);
}
}
}
};
}
]);
答案 0 :(得分：0)
我找到了一个解决方案，我只需要在css中添加它。
textarea.ng-dirty.ng-invalid {
border:2px solid #EA4335;
}
textarea.ng-dirty.ng-valid {
background-color:lightgreen;
}
现在它运作正常。