libervia-templates: default/static/websocket.js annotate

annotate default/static/websocket.js @ 140:b1e22caab8bc

ticket (item), merge-request (item): added "edit" button when url_ticket_edit is defined

author	Goffi <goffi@goffi.org>
date	Fri, 01 Jun 2018 12:47:54 +0200
parents	27d6453a6209
children

rev	line source
84 b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	1 /*
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	2 SàT templates: suit of templates for Salut à Toi
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	3 Copyright (C) 2017 Jérôme Poisson (goffi@goffi.org)
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	4
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	5 This program is free software: you can redistribute it and/or modify
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	6 it under the terms of the GNU Affero General Public License as published by
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	7 the Free Software Foundation, either version 3 of the License, or
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	8 (at your option) any later version.
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	9
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	10 This program is distributed in the hope that it will be useful,
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	13 GNU Affero General Public License for more details.
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	14
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	15 You should have received a copy of the GNU Affero General Public License
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	16 along with this program. If not, see <http://www.gnu.org/licenses/>.
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	17 */
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	18
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	19 /* websocket handler */
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	20
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	21
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	22 //TODO: retry websocket instead of reload
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	23 function WSHandler(url, token, debug=false) {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	24 var socket = new WebSocket(url, 'libervia_page_' + token );
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	25 var retried = 0;
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	26
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	27 var errorHandler = function(error) {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	28 if (retried > 20) {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	29 console.error("Too many tries, can't start websocket");
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	30 alert("Dynamic connection with server can't be established, please try to reload this page in a while or contact your service administrator");
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	31 return;
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	32 }
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	33 var delay = Math.floor((Math.random() * 10) + 1) + 30 * Math.min(retried, 6);
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	34 notifyRetry(delay, function() {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	35 retried++;
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	36 socket = new WebSocket(url, 'libervia_page_' + token );
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	37 socket.addEventListener('error', errorHandler);
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	38 });
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	39 };
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	40
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	41 socket.addEventListener('error', errorHandler);
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	42
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	43 if (debug) {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	44 socket.addEventListener('message', function(event) {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	45 console.log('WS in <== ', JSON.parse(event.data));
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	46 });
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	47 }
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	48
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	49 socket.addEventListener('message', function(event) {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	50 try {data = JSON.parse(event.data);}
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	51 catch (e) {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	52 console.warn('invalid websocket message received: %s', e);
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	53 return;
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	54 }
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	55 switch (data.type) {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	56 case 'reload':
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	57 location.reload(true);
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	58 break;
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	59 case 'dom':
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	60 selected_element = document.body.querySelector(data.selectors);
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	61 switch (data.update_type) {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	62 case 'append':
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	63 var template = document.createElement('template');
127 27d6453a6209 js (websocket): fixed parsing of new HTML Goffi <goffi@goffi.org> parents: 84 diff changeset	64 template.innerHTML = data.html.trim();
84 b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	65 new_element = template.content.firstChild;
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	66 selected_element.appendChild(new_element);
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	67 break;
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	68 default:
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	69 console.warn('Unknown DOM update type: %s', data.update_type);
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	70 }
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	71 break;
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	72 default:
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	73 console.warn('Unknown data type: %s', data.type);
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	74 }
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	75 });
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	76
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	77 socket.addEventListener('open', function (event) {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	78 console.log('Websocket opened');
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	79 retried = 0;
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	80 }.bind(this));
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	81
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	82 this.send = function(data) {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	83 if (debug) {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	84 console.log('WS out ==> ', data);
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	85 }
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	86 socket.send(JSON.stringify(data));
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	87 };
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	88
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	89 function notifyRetry(timeout, retryCb) {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	90 /* Show a notification dialog informing the user that server can't be reach
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	91 * and call retryCb after timeout seconds.
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	92 * A "retry now" link allows to retry immediately"
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	93 *
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	94 * @param timeout(int): delay before retrying, in seconds
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	95 * @param retryCb(function): function to call when retrying
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	96 */
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	97 var startTime = Date.now() / 1000;
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	98 var retryIntervalID;
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	99 var notif = document.createElement("div");
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	100 notif.setAttribute('class', 'notification retry');
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	101 //FIXME: we use English without translation for now, must be changed when we can use gettext in Libervia pages
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	102 notif.innerHTML = "<p>Can't reach the server, retrying in <span id='retry_counter'></span> seconds</p><p><a id='retry_now'>retry now</a></p>";
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	103 document.body.appendChild(notif);
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	104 var retryCounter = document.getElementById('retry_counter');
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	105 retryCounter.textContent = timeout;
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	106
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	107 var retry = function () {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	108 clearInterval(retryIntervalID);
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	109 notif.parentNode.removeChild(notif);
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	110 retryCb();
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	111 };
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	112
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	113 var updateTimer = function () {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	114 var elapsed = Math.floor(Date.now() / 1000 - startTime);
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	115 var remaining = timeout - elapsed;
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	116 if (remaining < 0) {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	117 retry();
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	118 }
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	119 else {
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	120 retryCounter.textContent = remaining;
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	121 }
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	122 };
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	123
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	124 var retryNow = document.getElementById('retry_now');
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	125 retryNow.addEventListener('click', function(){
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	126 retry();
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	127 });
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	128
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	129 retryIntervalID = setInterval(updateTimer, 1000);
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	130 }
b2ef34e602cf base, js (websocket), css (main style): dynamic pages implementation, first draft: Goffi <goffi@goffi.org> parents: diff changeset	131 }