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Use React Native built-in definitions for Event and EventTarget in Fantom #53362

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Use React Native built-in definitions for Event and EventTarget in Fantom #53362

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50 changes: 4 additions & 46 deletions private/react-native-fantom/src/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -577,59 +577,17 @@ export type {
*/

if (typeof global.Event === 'undefined') {
global.Event = class Event {
constructor() {}
};
global.Event =
require('react-native/src/private/webapis/dom/events/Event').default;
} else {
console.warn(
'The global Event class is already defined. If this API is already defined by React Native, you might want to remove this logic.',
);
}

if (typeof global.EventTarget === 'undefined') {
global.EventTarget = class EventTarget {
listeners: $FlowFixMe;

constructor() {
this.listeners = {};
}

addEventListener(type: string, cb: () => void) {
if (!(type in this.listeners)) {
this.listeners[type] = [];
}
this.listeners[type].push(cb);
}

removeEventListener(type: string, cb: () => void): void {
if (!(type in this.listeners)) {
return;
}
let handlers = this.listeners[type];
for (let i in handlers) {
if (cb === handlers[i]) {
handlers.splice(i, 1);
return;
}
}
}

dispatchEvent(type: string, event: Event) {
if (!(type in this.listeners)) {
return;
}
let handlers = this.listeners[type];
for (let i in handlers) {
handlers[i].call(this, event);
}
}

clearEventListeners() {
for (let i in this.listeners) {
delete this.listeners[i];
}
}
};
global.EventTarget =
require('react-native/src/private/webapis/dom/events/EventTarget').default;
} else {
console.warn(
'The global Event class is already defined. If this API is already defined by React Native, you might want to remove this logic.',
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