24 lines
686 B
JavaScript
24 lines
686 B
JavaScript
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export const injectScript = ({ eventName }) => {
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window.callGM = ({ action, args }, timeout = 5000) =>
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new Promise((resolve, reject) => {
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const handleEvent = (e) => {
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window.removeEventListener(eventName + "_pong", handleEvent);
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const { data, error } = e.detail;
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if (error) {
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reject(new Error(error));
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} else {
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resolve(data);
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}
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};
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window.addEventListener(eventName + "_pong", handleEvent);
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window.dispatchEvent(
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new CustomEvent(eventName + "_ping", { action, args })
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);
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setTimeout(() => {
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handleEvent({ detail: { error: "timeout" } });
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}, timeout);
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});
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};
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