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socket.io: Reconnect if the server disconnects

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This will make the pages gracefully handle HTTP server restart events,
which happen whenever a plugin is installed or uninstalled via the
`/admin/plugins` page.
This commit is contained in:
Richard Hansen 2020-12-14 02:50:52 -05:00
parent 303964c51e
commit 9f7d42185d
4 changed files with 36 additions and 8 deletions
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12
src/static/js/pad.js
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@ -238,15 +238,25 @@ const handshake = () => {
sendClientReady(receivedClientVars);
});
socket.on('reconnecting', () => {
const socketReconnecting = () => {
// pad.collabClient might be null if the hanshake failed (or it never got that far).
if (pad.collabClient != null) {
pad.collabClient.setStateIdle();
pad.collabClient.setIsPendingRevision(true);
pad.collabClient.setChannelState('RECONNECTING');
}
};
socket.on('disconnect', (reason) => {
// The socket.io client will automatically try to reconnect for all reasons other than "io
// server disconnect".
if (reason !== 'io server disconnect') return;
socketReconnecting();
socket.connect();
});
socket.on('reconnecting', socketReconnecting);
socket.on('reconnect_failed', (error) => {
// pad.collabClient might be null if the hanshake failed (or it never got that far).
if (pad.collabClient != null) {