@kui-shell/core
Version:
An Electron-based shell for cloud-native development
63 lines • 2.45 kB
JavaScript
/*
* Copyright 2020 The Kubernetes Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
import { Capabilities } from '..';
/** Signals that indicate we are being terminated */
const signals = ['SIGINT', 'SIGTERM', 'SIGUSR1', 'SIGUSR2'];
/** Interface with process.on/off */
function toggle(op, handler) {
return __awaiter(this, void 0, void 0, function* () {
if (op === 'on') {
process.on('exit', handler);
}
else {
process.off('exit', handler);
}
signals.forEach(signal => {
if (op === 'on') {
process.on(signal, handler);
}
else {
process.off(signal, handler);
}
});
});
}
export function onQuit(handler) {
if (Capabilities.isHeadless()) {
toggle('on', handler);
}
else if (typeof window.addEventListener === 'function') {
window.addEventListener('beforeunload', handler);
}
}
export function offQuit(handler) {
if (Capabilities.isHeadless()) {
toggle('off', handler);
}
else if (typeof window.removeEventListener === 'function') {
window.removeEventListener('beforeunload', handler);
}
}
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