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Re-factor the LoopbackPort class to use *proper* private fields

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This commit is contained in:
Jonas Jenwald 2022-09-23 13:25:15 +02:00
parent 7404091787
commit 499610779e
1 changed files with 9 additions and 10 deletions
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19
src/display/api.js
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@ -1853,34 +1853,33 @@ class PDFPageProxy {
}
class LoopbackPort {
constructor() {
this._listeners = [];
this._deferred = Promise.resolve();
}
#listeners = [];
#deferred = Promise.resolve();
postMessage(obj, transfers) {
const event = {
data: structuredClone(obj, transfers),
};
this._deferred.then(() => {
for (const listener of this._listeners) {
this.#deferred.then(() => {
for (const listener of this.#listeners) {
listener.call(this, event);
}
});
}
addEventListener(name, listener) {
this._listeners.push(listener);
this.#listeners.push(listener);
}
removeEventListener(name, listener) {
const i = this._listeners.indexOf(listener);
this._listeners.splice(i, 1);
const i = this.#listeners.indexOf(listener);
this.#listeners.splice(i, 1);
}
terminate() {
this._listeners.length = 0;
this.#listeners.length = 0;
}
}