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3e70e190dd
Now use a normal message to keep the connection alive. Avoids the annoying error messages in the console when the browser times out the connection.
55 lines
1.9 KiB
JavaScript
55 lines
1.9 KiB
JavaScript
/* vim:fileencoding=utf-8
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*
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* Copyright (C) 2015 Kovid Goyal <kovid at kovidgoyal.net>
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*
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* Distributed under terms of the GPLv3 license
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*/
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(function(autoreload_port) {
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"use strict";
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var url = 'ws://127.0.0.1:' + autoreload_port;
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var MAX_RETRIES = 10;
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function ReconnectingWebSocket() {
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self = this;
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self.retries = 0;
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self.interval = 100;
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self.disable = false;
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self.opened_at_least_once = false;
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self.reconnect = function() {
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self.ws = new WebSocket(url);
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self.ws.onopen = function(event) {
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self.retries = 0;
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self.opened_at_least_once = true;
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self.interval = 100;
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console.log('Connected to reloading WebSocket server at port: ' + autoreload_port);
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window.addEventListener('beforeunload', function (event) {
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console.log('Shutting down connection to reload server, before page unload');
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self.disable = true;
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self.ws.close();
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});
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};
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self.ws.onmessage = function(event) {
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if (event.data !== 'ping') console.log('Received mesasge from reload server: ' + event.data);
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if (event.data === 'reload') window.location.reload(true);
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};
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self.ws.onclose = function(event) {
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if (self.disable || !self.opened_at_least_once) return;
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console.log('Connection to reload server closed with code: ' + event.code + ' and reason: ' + event.reason);
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self.retries += 1;
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if (self.retries < MAX_RETRIES) {
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setTimeout(self.reconnect, self.interval);
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} else window.location.reload(true);
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};
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};
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self.reconnect();
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}
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var sock = new ReconnectingWebSocket();
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})(AUTORELOAD_PORT);
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