superset useTabId 源码
superset useTabId 代码
文件路径：/superset-frontend/src/hooks/useTabId.ts
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
import { useEffect, useState } from 'react';
import shortid from 'shortid';
import { BroadcastChannel } from 'broadcast-channel';
interface TabIdChannelMessage {
type: 'REQUESTING_TAB_ID' | 'TAB_ID_DENIED';
tabId: string;
}
// TODO: We are using broadcast-channel to support Safari.
// The native BroadcastChannel API will be supported in Safari version 15.4.
// After that, we should remove this dependency and use the native API.
const channel = new BroadcastChannel<TabIdChannelMessage>('tab_id_channel');
export function useTabId() {
const [tabId, setTabId] = useState<string>();
function isStorageAvailable() {
try {
return window.localStorage && window.sessionStorage;
} catch (error) {
return false;
}
}
useEffect(() => {
if (!isStorageAvailable()) {
if (!tabId) {
setTabId(shortid.generate());
}
return;
}
const updateTabId = () => {
const lastTabId = window.localStorage.getItem('last_tab_id');
const newTabId = String(
lastTabId ? Number.parseInt(lastTabId, 10) + 1 : 1,
);
window.sessionStorage.setItem('tab_id', newTabId);
window.localStorage.setItem('last_tab_id', newTabId);
setTabId(newTabId);
};
const storedTabId = window.sessionStorage.getItem('tab_id');
if (storedTabId) {
channel.postMessage({
type: 'REQUESTING_TAB_ID',
tabId: storedTabId,
});
setTabId(storedTabId);
} else {
updateTabId();
}
channel.onmessage = messageEvent => {
if (messageEvent.tabId === tabId) {
if (messageEvent.type === 'REQUESTING_TAB_ID') {
const message: TabIdChannelMessage = {
type: 'TAB_ID_DENIED',
tabId: messageEvent.tabId,
};
channel.postMessage(message);
} else if (messageEvent.type === 'TAB_ID_DENIED') {
updateTabId();
}
}
};
}, [tabId]);
return tabId;
}
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