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KnockoutJS to ES2015/ES6

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TODO: use the new Proxy for ko.observable
This commit is contained in:
djmaze 2020-10-04 21:58:13 +02:00
parent a0f8ac0dad
commit 72ed2b08b2
56 changed files with 941 additions and 1873 deletions
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27
vendors/knockout/src/binding/defaultBindings/textInput.js vendored
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@ -1,13 +1,11 @@
(function () {
ko.bindingHandlers['textInput'] = {
'init': function (element, valueAccessor, allBindings) {
'init': (element, valueAccessor, allBindings) => {
var previousElementValue = element.value,
timeoutHandle,
elementValueBeforeEvent;
var updateModel = function (event) {
var updateModel = event => {
clearTimeout(timeoutHandle);
elementValueBeforeEvent = timeoutHandle = undefined;
@ -20,7 +18,7 @@ ko.bindingHandlers['textInput'] = {
}
};
var deferUpdateModel = function (event) {
var deferUpdateModel = event => {
if (!timeoutHandle) {
// The elementValueBeforeEvent variable is set *only* during the brief gap between an
// event firing and the updateModel function running. This allows us to ignore model
@ -32,11 +30,7 @@ ko.bindingHandlers['textInput'] = {
}
};
// IE9 will mess up the DOM if you handle events synchronously which results in DOM changes (such as other bindings);
// so we'll make sure all updates are asynchronous
var ourUpdate = false;
var updateView = function () {
var updateView = () => {
var modelValue = ko.utils.unwrapObservable(valueAccessor());
if (modelValue === null || modelValue === undefined) {
@ -51,20 +45,17 @@ ko.bindingHandlers['textInput'] = {
// Update the element only if the element and model are different. On some browsers, updating the value
// will move the cursor to the end of the input, which would be bad while the user is typing.
if (element.value !== modelValue) {
ourUpdate = true; // Make sure we ignore events (propertychange) that result from updating the value
element.value = modelValue;
ourUpdate = false;
previousElementValue = element.value; // In case the browser changes the value (see #2281)
}
};
var onEvent = function (event, handler) {
var onEvent = (event, handler) =>
ko.utils.registerEventHandler(element, event, handler);
};
if (DEBUG && ko.bindingHandlers['textInput']['_forceUpdateOn']) {
// Provide a way for tests to specify exactly which events are bound
ko.utils.arrayForEach(ko.bindingHandlers['textInput']['_forceUpdateOn'], function(eventName) {
ko.utils.arrayForEach(ko.bindingHandlers['textInput']['_forceUpdateOn'], eventName => {
if (eventName.slice(0,5) == 'after') {
onEvent(eventName.slice(5), deferUpdateModel);
} else {
@ -89,9 +80,5 @@ ko.expressionRewriting.twoWayBindings['textInput'] = true;
// textinput is an alias for textInput
ko.bindingHandlers['textinput'] = {
// preprocess is the only way to set up a full alias
'preprocess': function (value, name, addBinding) {
addBinding('textInput', value);
}
'preprocess': (value, name, addBinding) => addBinding('textInput', value)
};
})();