@dioxide-js/detect-provider
Version:
A tiny utility for detecting the Dioxide-wallet provider which injected at window.dioxide.
60 lines (56 loc) • 2.23 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global.dioxideDetectProvider = factory());
}(this, (function () { 'use strict';
/**
* Returns a Promise that resolves to the value of window.dioxide if it is
* The Promise will not reject, but an error will be thrown if invalid options
* are provided.
*
* @param options - Options bag.
* @param options.timeout - Milliseconds to wait for 'dioxide#initialized' to
* be dispatched. Default: 3000
* @returns A Promise that resolves with the Provider if it is detected within
* given timeout, otherwise null.
*/
function detectDioxideProvider(_a) {
var _b = _a === void 0 ? {} : _a, _c = _b.timeout, timeout = _c === void 0 ? 3000 : _c;
if (typeof timeout !== 'number') {
throw new Error("@duiyuan/detect-provider: Expected option 'timeout' to be a number.");
}
var done = false;
return new Promise(function (resolve) {
// Resolve promise immediately when detect window.dioxide
// Otherwise detect it after dioxide#initialized event trigger, you will got null after given timeout
if (window.dioxide) {
detect();
}
else {
window.addEventListener('dioxide#initialized', detect, {
once: true,
});
setTimeout(function () {
detect();
}, timeout);
}
function detect() {
if (done) {
return;
}
done = true;
window.removeEventListener('dioxide#initialized', detect);
if (window.dioxide) {
resolve(window.dioxide);
}
else {
var message = 'Unable to detect window.dioxide';
console.error('@dioxide/detect-provider:', message);
resolve(null);
}
}
});
}
return detectDioxideProvider;
})));
//# sourceMappingURL=detect-provider.umd.js.map