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Use autofill-event.js to workaround browsers issue: Form model doesn'…
…t update on autocomplete angular/angular.js#1460
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Emmanuel ROHEE
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Sep 11, 2014
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/** | ||
* Autofill event polyfill ##version:1.0.0## | ||
* (c) 2014 Google, Inc. | ||
* License: MIT | ||
*/ | ||
(function(window) { | ||
var $ = window.jQuery || window.angular.element; | ||
var rootElement = window.document.documentElement, | ||
$rootElement = $(rootElement); | ||
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addGlobalEventListener('change', markValue); | ||
addValueChangeByJsListener(markValue); | ||
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$.prototype.checkAndTriggerAutoFillEvent = jqCheckAndTriggerAutoFillEvent; | ||
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// Need to use blur and not change event | ||
// as Chrome does not fire change events in all cases an input is changed | ||
// (e.g. when starting to type and then finish the input by auto filling a username) | ||
addGlobalEventListener('blur', function(target) { | ||
// setTimeout needed for Chrome as it fills other | ||
// form fields a little later... | ||
window.setTimeout(function() { | ||
findParentForm(target).find('input').checkAndTriggerAutoFillEvent(); | ||
}, 20); | ||
}); | ||
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window.document.addEventListener('DOMContentLoaded', function() { | ||
// The timeout is needed for Chrome as it auto fills | ||
// login forms some time after DOMContentLoaded! | ||
window.setTimeout(function() { | ||
$rootElement.find('input').checkAndTriggerAutoFillEvent(); | ||
}, 200); | ||
}, false); | ||
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return; | ||
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// ---------- | ||
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function jqCheckAndTriggerAutoFillEvent() { | ||
var i, el; | ||
for (i=0; i<this.length; i++) { | ||
el = this[i]; | ||
if (!valueMarked(el)) { | ||
markValue(el); | ||
triggerChangeEvent(el); | ||
} | ||
} | ||
} | ||
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function valueMarked(el) { | ||
var val = el.value, | ||
$$currentValue = el.$$currentValue; | ||
if (!val && !$$currentValue) { | ||
return true; | ||
} | ||
return val === $$currentValue; | ||
} | ||
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function markValue(el) { | ||
el.$$currentValue = el.value; | ||
} | ||
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function addValueChangeByJsListener(listener) { | ||
var jq = window.jQuery || window.angular.element, | ||
jqProto = jq.prototype; | ||
var _val = jqProto.val; | ||
jqProto.val = function(newValue) { | ||
var res = _val.apply(this, arguments); | ||
if (arguments.length > 0) { | ||
forEach(this, function(el) { | ||
listener(el, newValue); | ||
}); | ||
} | ||
return res; | ||
} | ||
} | ||
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function addGlobalEventListener(eventName, listener) { | ||
// Use a capturing event listener so that | ||
// we also get the event when it's stopped! | ||
// Also, the blur event does not bubble. | ||
rootElement.addEventListener(eventName, onEvent, true); | ||
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function onEvent(event) { | ||
var target = event.target; | ||
listener(target); | ||
} | ||
} | ||
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function findParentForm(el) { | ||
while (el) { | ||
if (el.nodeName === 'FORM') { | ||
return $(el); | ||
} | ||
el = el.parentNode; | ||
} | ||
return $(); | ||
} | ||
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function forEach(arr, listener) { | ||
if (arr.forEach) { | ||
return arr.forEach(listener); | ||
} | ||
var i; | ||
for (i=0; i<arr.length; i++) { | ||
listener(arr[i]); | ||
} | ||
} | ||
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function triggerChangeEvent(element) { | ||
var doc = window.document; | ||
var event = doc.createEvent("HTMLEvents"); | ||
event.initEvent("change", true, true); | ||
element.dispatchEvent(event); | ||
} | ||
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})(window); |