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Revert controlled components #4009

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May 18, 2023
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57 changes: 0 additions & 57 deletions compat/src/render.js
Original file line number Diff line number Diff line change
Expand Up @@ -87,44 +87,12 @@ let oldEventHook = options.event;
options.event = e => {
if (oldEventHook) e = oldEventHook(e);

/** @type {ControlledTarget} */
const target = e.currentTarget;
const eventType = e.type;
if (
(eventType === 'input' || eventType === 'change') &&
target._isControlled
) {
// Note: We can't just send the event to the afterEvent function because
// some properties on the event (e.g. currentTarget) will be changed by the
// time afterEvent is called. `currentTarget` will be `null` at that point.
// The browser reuses event objects for event handlers and just modifies the
// relevant properties before invoking the next handler. So whenever we call
// afterEvent, if we were to inspect the original Event object, we would see
// that the currentTarget is null. So instead we pass the event type and the
// target to afterEvent.
Promise.resolve().then(() => afterEvent(eventType, target));
}

e.persist = empty;
e.isPropagationStopped = isPropagationStopped;
e.isDefaultPrevented = isDefaultPrevented;
return (e.nativeEvent = e);
};

/**
* @typedef {EventTarget & {value: any; checked: any; _isControlled: boolean; _prevValue: any}} ControlledTarget
* @param {string} eventType
* @param {ControlledTarget} target
*/
function afterEvent(eventType, target) {
if (target.value != null) {
Promise.resolve().then(() => (target.value = target._prevValue));
}
if (eventType === 'change' && target.checked != null) {
Promise.resolve().then(() => (target.checked = target._prevValue));
}
}

function empty() {}

function isPropagationStopped() {
Expand Down Expand Up @@ -278,33 +246,8 @@ options.diffed = function (vnode) {
oldDiffed(vnode);
}

const type = vnode.type;
const props = vnode.props;
const dom = vnode._dom;
const isControlled = dom && dom._isControlled;

if (
dom != null &&
(type === 'input' || type === 'textarea' || type === 'select')
) {
if (isControlled === false) {
} else if (
isControlled ||
props.oninput ||
props.onchange ||
props.onChange
) {
if (props.value != null) {
dom._isControlled = true;
dom._prevValue = props.value;
} else if (props.checked != null) {
dom._isControlled = true;
dom._prevValue = props.checked;
} else {
dom._isControlled = false;
}
}
}

if (
dom != null &&
Expand Down
216 changes: 0 additions & 216 deletions compat/test/browser/controlledInput.test.js

This file was deleted.

19 changes: 0 additions & 19 deletions demo/controlled-inputs.jsx

This file was deleted.

5 changes: 0 additions & 5 deletions demo/index.jsx
Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,6 @@ import SuspenseRouterBug from './suspense-router';
import NestedSuspenseBug from './nested-suspense';
import Contenteditable from './contenteditable';
import { MobXDemo } from './mobx';
import ControlledInputs from './controlled-inputs';

let isBenchmark = /(\/spiral|\/pythagoras|[#&]bench)/g.test(
window.location.href
Expand Down Expand Up @@ -136,9 +135,6 @@ class App extends Component {
<Link href="/contenteditable" activeClassName="active">
contenteditable
</Link>
<Link href="/controlled-inputs" activeClassName="active">
Controlled Inputs
</Link>
</nav>
</header>
<main>
Expand Down Expand Up @@ -169,7 +165,6 @@ class App extends Component {
<SuspenseRouterBug path="/suspense-router" />
<NestedSuspenseBug path="/nested-suspense" />
<Contenteditable path="/contenteditable" />
<ControlledInputs path="/controlled-inputs" />
</Router>
</main>
</div>
Expand Down