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lint: collab-client (#4574) 

* lint: collab-client

* Undo incorrect lint fixes

These will be re-fixed in a future commit.

* Properly fix guard-for-in error

* Properly fix prefer-rest-params errors

* Move some code back to where it was

Moving the code makes it hard to review the diff.

* Delete DISCONNECT_REASON case

Someone reading the code won't understand what "used to handle
appLevelDisconnectReason" means until they dig through the Git
history. Given the server never sends messages of type
DISCONNECT_REASON anyway, just delete the case.

* Refine lint fixes

Co-authored-by: Richard Hansen <rhansen@rhansen.org>
pull/4599/head
John McLear 2020-12-21 20:19:00 +00:00 committed by GitHub
parent d34a70c940
commit 4aef15cb11
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 157 additions and 173 deletions
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330
src/static/js/collab_client.js
View File

@ -1,3 +1,5 @@
'use strict';
/** /**
* This code is mostly from the old Etherpad. Please help us to comment this code. * This code is mostly from the old Etherpad. Please help us to comment this code.
* This helps other people to understand this code better and helps them to improve it. * This helps other people to understand this code better and helps them to improve it.
@ -22,13 +24,12 @@
const chat = require('./chat').chat; const chat = require('./chat').chat;
const hooks = require('./pluginfw/hooks'); const hooks = require('./pluginfw/hooks');
const browser = require('./browser');
// Dependency fill on init. This exists for `pad.socket` only. // Dependency fill on init. This exists for `pad.socket` only.
// TODO: bind directly to the socket. // TODO: bind directly to the socket.
let pad = undefined; let pad = undefined;
function getSocket() { const getSocket = () => pad && pad.socket;
return pad && pad.socket;
}
/** Call this when the document is ready, and a new Ace2Editor() has been created and inited. /** Call this when the document is ready, and a new Ace2Editor() has been created and inited.
ACE's ready callback does not need to have fired yet. ACE's ready callback does not need to have fired yet.
@ -38,13 +39,9 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
pad = _pad; // Inject pad to avoid a circular dependency. pad = _pad; // Inject pad to avoid a circular dependency.
let rev = serverVars.rev; let rev = serverVars.rev;
const padId = serverVars.padId;
let state = 'IDLE'; let state = 'IDLE';
let stateMessage; let stateMessage;
let channelState = 'CONNECTING'; let channelState = 'CONNECTING';
let appLevelDisconnectReason = null;
let lastCommitTime = 0; let lastCommitTime = 0;
let initialStartConnectTime = 0; let initialStartConnectTime = 0;
@ -56,46 +53,34 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
const caughtErrors = []; const caughtErrors = [];
const caughtErrorCatchers = []; const caughtErrorCatchers = [];
const caughtErrorTimes = []; const caughtErrorTimes = [];
const debugMessages = [];
const msgQueue = []; const msgQueue = [];
let isPendingRevision = false; let isPendingRevision = false;
tellAceAboutHistoricalAuthors(serverVars.historicalAuthorData);
tellAceActiveAuthorInfo(initialUserInfo);
const callbacks = { const callbacks = {
onUserJoin() {}, onUserJoin: () => {},
onUserLeave() {}, onUserLeave: () => {},
onUpdateUserInfo() {}, onUpdateUserInfo: () => {},
onChannelStateChange() {}, onChannelStateChange: () => {},
onClientMessage() {}, onClientMessage: () => {},
onInternalAction() {}, onInternalAction: () => {},
onConnectionTrouble() {}, onConnectionTrouble: () => {},
onServerMessage: () => {},
}; };
if (browser.firefox) { if (browser.firefox) {
// Prevent "escape" from taking effect and canceling a comet connection; // Prevent "escape" from taking effect and canceling a comet connection;
// doesn't work if focus is on an iframe. // doesn't work if focus is on an iframe.
$(window).bind('keydown', (evt) => { $(window).bind('keydown', (evt) => {
if (evt.which == 27) { if (evt.which === 27) {
evt.preventDefault(); evt.preventDefault();
} }
}); });
} }
editor.setProperty('userAuthor', userId); const handleUserChanges = () => {
editor.setBaseAttributedText(serverVars.initialAttributedText, serverVars.apool);
editor.setUserChangeNotificationCallback(wrapRecordingErrors('handleUserChanges', handleUserChanges));
function dmesg(str) {
if (typeof window.ajlog === 'string') window.ajlog += `${str}\n`;
debugMessages.push(str);
}
function handleUserChanges() {
if (editor.getInInternationalComposition()) return; if (editor.getInInternationalComposition()) return;
if ((!getSocket()) || channelState == 'CONNECTING') { if ((!getSocket()) || channelState === 'CONNECTING') {
if (channelState == 'CONNECTING' && (((+new Date()) - initialStartConnectTime) > 20000)) { if (channelState === 'CONNECTING' && (((+new Date()) - initialStartConnectTime) > 20000)) {
setChannelState('DISCONNECTED', 'initsocketfail'); setChannelState('DISCONNECTED', 'initsocketfail');
} else { } else {
// check again in a bit // check again in a bit
@ -106,11 +91,11 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
const t = (+new Date()); const t = (+new Date());
if (state != 'IDLE') { if (state !== 'IDLE') {
if (state == 'COMMITTING' && msgQueue.length == 0 && (t - lastCommitTime) > 20000) { if (state === 'COMMITTING' && msgQueue.length === 0 && (t - lastCommitTime) > 20000) {
// a commit is taking too long // a commit is taking too long
setChannelState('DISCONNECTED', 'slowcommit'); setChannelState('DISCONNECTED', 'slowcommit');
} else if (state == 'COMMITTING' && msgQueue.length == 0 && (t - lastCommitTime) > 5000) { } else if (state === 'COMMITTING' && msgQueue.length === 0 && (t - lastCommitTime) > 5000) {
callbacks.onConnectionTrouble('SLOW'); callbacks.onConnectionTrouble('SLOW');
} else { } else {
// run again in a few seconds, to detect a disconnect // run again in a few seconds, to detect a disconnect
@ -121,17 +106,19 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
const earliestCommit = lastCommitTime + 500; const earliestCommit = lastCommitTime + 500;
if (t < earliestCommit) { if (t < earliestCommit) {
setTimeout(wrapRecordingErrors('setTimeout(handleUserChanges)', handleUserChanges), earliestCommit - t); setTimeout(
wrapRecordingErrors('setTimeout(handleUserChanges)', handleUserChanges),
earliestCommit - t);
return; return;
} }
// apply msgQueue changeset. // apply msgQueue changeset.
if (msgQueue.length != 0) { if (msgQueue.length !== 0) {
let msg; let msg;
while (msg = msgQueue.shift()) { while ((msg = msgQueue.shift())) {
const newRev = msg.newRev; const newRev = msg.newRev;
rev = newRev; rev = newRev;
if (msg.type == 'ACCEPT_COMMIT') { if (msg.type === 'ACCEPT_COMMIT') {
editor.applyPreparedChangesetToBase(); editor.applyPreparedChangesetToBase();
setStateIdle(); setStateIdle();
callCatchingErrors('onInternalAction', () => { callCatchingErrors('onInternalAction', () => {
@ -141,7 +128,7 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
callbacks.onConnectionTrouble('OK'); callbacks.onConnectionTrouble('OK');
}); });
handleUserChanges(); handleUserChanges();
} else if (msg.type == 'NEW_CHANGES') { } else if (msg.type === 'NEW_CHANGES') {
const changeset = msg.changeset; const changeset = msg.changeset;
const author = (msg.author || ''); const author = (msg.author || '');
const apool = msg.apool; const apool = msg.apool;
@ -181,67 +168,60 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
// run again in a few seconds, to detect a disconnect // run again in a few seconds, to detect a disconnect
setTimeout(wrapRecordingErrors('setTimeout(handleUserChanges)', handleUserChanges), 3000); setTimeout(wrapRecordingErrors('setTimeout(handleUserChanges)', handleUserChanges), 3000);
} }
} };
function setUpSocket() { const setUpSocket = () => {
hiccupCount = 0;
setChannelState('CONNECTED'); setChannelState('CONNECTED');
doDeferredActions(); doDeferredActions();
initialStartConnectTime = +new Date(); initialStartConnectTime = +new Date();
} };
var hiccupCount = 0; const sendMessage = (msg) => {
function sendMessage(msg) {
getSocket().json.send( getSocket().json.send(
{ {
type: 'COLLABROOM', type: 'COLLABROOM',
component: 'pad', component: 'pad',
data: msg, data: msg,
}); });
} };
function wrapRecordingErrors(catcher, func) { const wrapRecordingErrors = (catcher, func) => function (...args) {
return function () { try {
try { return func.call(this, ...args);
return func.apply(this, Array.prototype.slice.call(arguments)); } catch (e) {
} catch (e) { caughtErrors.push(e);
caughtErrors.push(e); caughtErrorCatchers.push(catcher);
caughtErrorCatchers.push(catcher); caughtErrorTimes.push(+new Date());
caughtErrorTimes.push(+new Date()); // console.dir({catcher: catcher, e: e});
// console.dir({catcher: catcher, e: e}); throw e;
throw e; }
} };
};
}
function callCatchingErrors(catcher, func) { const callCatchingErrors = (catcher, func) => {
try { try {
wrapRecordingErrors(catcher, func)(); wrapRecordingErrors(catcher, func)();
} catch (e) { /* absorb*/ } catch (e) { /* absorb*/
} }
} };
function handleMessageFromServer(evt) { const handleMessageFromServer = (evt) => {
if (!getSocket()) return; if (!getSocket()) return;
if (!evt.data) return; if (!evt.data) return;
const wrapper = evt; const wrapper = evt;
if (wrapper.type != 'COLLABROOM' && wrapper.type != 'CUSTOM') return; if (wrapper.type !== 'COLLABROOM' && wrapper.type !== 'CUSTOM') return;
const msg = wrapper.data; const msg = wrapper.data;
if (msg.type == 'NEW_CHANGES') { if (msg.type === 'NEW_CHANGES') {
var newRev = msg.newRev; const newRev = msg.newRev;
var changeset = msg.changeset; const changeset = msg.changeset;
var author = (msg.author || ''); const author = (msg.author || '');
var apool = msg.apool; const apool = msg.apool;
// When inInternationalComposition, msg pushed msgQueue. // When inInternationalComposition, msg pushed msgQueue.
if (msgQueue.length > 0 || editor.getInInternationalComposition()) { if (msgQueue.length > 0 || editor.getInInternationalComposition()) {
if (msgQueue.length > 0) var oldRev = msgQueue[msgQueue.length - 1].newRev; const oldRev = msgQueue.length > 0 ? msgQueue[msgQueue.length - 1].newRev : rev;
else oldRev = rev; if (newRev !== (oldRev + 1)) {
if (newRev != (oldRev + 1)) {
window.console.warn(`bad message revision on NEW_CHANGES: ${newRev} not ${oldRev + 1}`); window.console.warn(`bad message revision on NEW_CHANGES: ${newRev} not ${oldRev + 1}`);
// setChannelState("DISCONNECTED", "badmessage_newchanges"); // setChannelState("DISCONNECTED", "badmessage_newchanges");
return; return;
@ -250,7 +230,7 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
return; return;
} }
if (newRev != (rev + 1)) { if (newRev !== (rev + 1)) {
window.console.warn(`bad message revision on NEW_CHANGES: ${newRev} not ${rev + 1}`); window.console.warn(`bad message revision on NEW_CHANGES: ${newRev} not ${rev + 1}`);
// setChannelState("DISCONNECTED", "badmessage_newchanges"); // setChannelState("DISCONNECTED", "badmessage_newchanges");
return; return;
@ -258,11 +238,12 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
rev = newRev; rev = newRev;
editor.applyChangesToBase(changeset, author, apool); editor.applyChangesToBase(changeset, author, apool);
} else if (msg.type == 'ACCEPT_COMMIT') { } else if (msg.type === 'ACCEPT_COMMIT') {
var newRev = msg.newRev; const newRev = msg.newRev;
if (msgQueue.length > 0) { if (msgQueue.length > 0) {
if (newRev != (msgQueue[msgQueue.length - 1].newRev + 1)) { if (newRev !== (msgQueue[msgQueue.length - 1].newRev + 1)) {
window.console.warn(`bad message revision on ACCEPT_COMMIT: ${newRev} not ${msgQueue[msgQueue.length - 1][0] + 1}`); window.console.warn('bad message revision on ACCEPT_COMMIT: ' +
`${newRev} not ${msgQueue[msgQueue.length - 1][0] + 1}`);
// setChannelState("DISCONNECTED", "badmessage_acceptcommit"); // setChannelState("DISCONNECTED", "badmessage_acceptcommit");
return; return;
} }
@ -270,7 +251,7 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
return; return;
} }
if (newRev != (rev + 1)) { if (newRev !== (rev + 1)) {
window.console.warn(`bad message revision on ACCEPT_COMMIT: ${newRev} not ${rev + 1}`); window.console.warn(`bad message revision on ACCEPT_COMMIT: ${newRev} not ${rev + 1}`);
// setChannelState("DISCONNECTED", "badmessage_acceptcommit"); // setChannelState("DISCONNECTED", "badmessage_acceptcommit");
return; return;
@ -285,9 +266,9 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
callbacks.onConnectionTrouble('OK'); callbacks.onConnectionTrouble('OK');
}); });
handleUserChanges(); handleUserChanges();
} else if (msg.type == 'CLIENT_RECONNECT') { } else if (msg.type === 'CLIENT_RECONNECT') {
// Server sends a CLIENT_RECONNECT message when there is a client reconnect. Server also returns // Server sends a CLIENT_RECONNECT message when there is a client reconnect.
// all pending revisions along with this CLIENT_RECONNECT message // Server also returns all pending revisions along with this CLIENT_RECONNECT message
if (msg.noChanges) { if (msg.noChanges) {
// If no revisions are pending, just make everything normal // If no revisions are pending, just make everything normal
setIsPendingRevision(false); setIsPendingRevision(false);
@ -295,14 +276,15 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
} }
const headRev = msg.headRev; const headRev = msg.headRev;
var newRev = msg.newRev; const newRev = msg.newRev;
var changeset = msg.changeset; const changeset = msg.changeset;
var author = (msg.author || ''); const author = (msg.author || '');
var apool = msg.apool; const apool = msg.apool;
if (msgQueue.length > 0) { if (msgQueue.length > 0) {
if (newRev != (msgQueue[msgQueue.length - 1].newRev + 1)) { if (newRev !== (msgQueue[msgQueue.length - 1].newRev + 1)) {
window.console.warn(`bad message revision on CLIENT_RECONNECT: ${newRev} not ${msgQueue[msgQueue.length - 1][0] + 1}`); window.console.warn('bad message revision on CLIENT_RECONNECT: ' +
`${newRev} not ${msgQueue[msgQueue.length - 1][0] + 1}`);
// setChannelState("DISCONNECTED", "badmessage_acceptcommit"); // setChannelState("DISCONNECTED", "badmessage_acceptcommit");
return; return;
} }
@ -311,14 +293,14 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
return; return;
} }
if (newRev != (rev + 1)) { if (newRev !== (rev + 1)) {
window.console.warn(`bad message revision on CLIENT_RECONNECT: ${newRev} not ${rev + 1}`); window.console.warn(`bad message revision on CLIENT_RECONNECT: ${newRev} not ${rev + 1}`);
// setChannelState("DISCONNECTED", "badmessage_acceptcommit"); // setChannelState("DISCONNECTED", "badmessage_acceptcommit");
return; return;
} }
rev = newRev; rev = newRev;
if (author == pad.getUserId()) { if (author === pad.getUserId()) {
editor.applyPreparedChangesetToBase(); editor.applyPreparedChangesetToBase();
setStateIdle(); setStateIdle();
callCatchingErrors('onInternalAction', () => { callCatchingErrors('onInternalAction', () => {
@ -332,19 +314,19 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
editor.applyChangesToBase(changeset, author, apool); editor.applyChangesToBase(changeset, author, apool);
} }
if (newRev == headRev) { if (newRev === headRev) {
// Once we have applied all pending revisions, make everything normal // Once we have applied all pending revisions, make everything normal
setIsPendingRevision(false); setIsPendingRevision(false);
} }
} else if (msg.type == 'NO_COMMIT_PENDING') { } else if (msg.type === 'NO_COMMIT_PENDING') {
if (state == 'COMMITTING') { if (state === 'COMMITTING') {
// server missed our commit message; abort that commit // server missed our commit message; abort that commit
setStateIdle(); setStateIdle();
handleUserChanges(); handleUserChanges();
} }
} else if (msg.type == 'USER_NEWINFO') { } else if (msg.type === 'USER_NEWINFO') {
var userInfo = msg.userInfo; const userInfo = msg.userInfo;
var id = userInfo.userId; const id = userInfo.userId;
// Avoid a race condition when setting colors. If our color was set by a // Avoid a race condition when setting colors. If our color was set by a
// query param, ignore our own "new user" message's color value. // query param, ignore our own "new user" message's color value.
@ -361,21 +343,19 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
callbacks.onUserJoin(userInfo); callbacks.onUserJoin(userInfo);
} }
tellAceActiveAuthorInfo(userInfo); tellAceActiveAuthorInfo(userInfo);
} else if (msg.type == 'USER_LEAVE') { } else if (msg.type === 'USER_LEAVE') {
var userInfo = msg.userInfo; const userInfo = msg.userInfo;
var id = userInfo.userId; const id = userInfo.userId;
if (userSet[id]) { if (userSet[id]) {
delete userSet[userInfo.userId]; delete userSet[userInfo.userId];
fadeAceAuthorInfo(userInfo); fadeAceAuthorInfo(userInfo);
callbacks.onUserLeave(userInfo); callbacks.onUserLeave(userInfo);
} }
} else if (msg.type == 'DISCONNECT_REASON') { } else if (msg.type === 'CLIENT_MESSAGE') {
appLevelDisconnectReason = msg.reason;
} else if (msg.type == 'CLIENT_MESSAGE') {
callbacks.onClientMessage(msg.payload); callbacks.onClientMessage(msg.payload);
} else if (msg.type == 'CHAT_MESSAGE') { } else if (msg.type === 'CHAT_MESSAGE') {
chat.addMessage(msg, true, false); chat.addMessage(msg, true, false);
} else if (msg.type == 'CHAT_MESSAGES') { } else if (msg.type === 'CHAT_MESSAGES') {
for (let i = msg.messages.length - 1; i >= 0; i--) { for (let i = msg.messages.length - 1; i >= 0; i--) {
chat.addMessage(msg.messages[i], true, true); chat.addMessage(msg.messages[i], true, true);
} }
@ -389,12 +369,18 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
$('#chatloadmessagesball').css('display', 'none'); $('#chatloadmessagesball').css('display', 'none');
// there are less than 100 messages or we reached the top // there are less than 100 messages or we reached the top
if (chat.historyPointer <= 0) { $('#chatloadmessagesbutton').css('display', 'none'); } else // there are still more messages, re-show the load-button if (chat.historyPointer <= 0) {
{ $('#chatloadmessagesbutton').css('display', 'block'); } $('#chatloadmessagesbutton').css('display', 'none');
} else {
// there are still more messages, re-show the load-button
$('#chatloadmessagesbutton').css('display', 'block');
}
} }
// HACKISH: User messages do not have "payload" but "userInfo", so that all "handleClientMessage_USER_" hooks would work, populate payload // HACKISH: User messages do not have "payload" but "userInfo", so that all
// FIXME: USER_* messages to have "payload" property instead of "userInfo", seems like a quite a big work // "handleClientMessage_USER_" hooks would work, populate payload
// FIXME: USER_* messages to have "payload" property instead of "userInfo",
// seems like a quite a big work
if (msg.type.indexOf('USER_') > -1) { if (msg.type.indexOf('USER_') > -1) {
msg.payload = msg.userInfo; msg.payload = msg.userInfo;
} }
@ -402,9 +388,9 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
if (msg.type === 'NEW_CHANGES') msg.payload = msg; if (msg.type === 'NEW_CHANGES') msg.payload = msg;
hooks.callAll(`handleClientMessage_${msg.type}`, {payload: msg.payload}); hooks.callAll(`handleClientMessage_${msg.type}`, {payload: msg.payload});
} };
function updateUserInfo(userInfo) { const updateUserInfo = (userInfo) => {
userInfo.userId = userId; userInfo.userId = userId;
userSet[userId] = userInfo; userSet[userId] = userInfo;
tellAceActiveAuthorInfo(userInfo); tellAceActiveAuthorInfo(userInfo);
@ -414,13 +400,13 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
type: 'USERINFO_UPDATE', type: 'USERINFO_UPDATE',
userInfo, userInfo,
}); });
} };
function tellAceActiveAuthorInfo(userInfo) { const tellAceActiveAuthorInfo = (userInfo) => {
tellAceAuthorInfo(userInfo.userId, userInfo.colorId); tellAceAuthorInfo(userInfo.userId, userInfo.colorId);
} };
function tellAceAuthorInfo(userId, colorId, inactive) { const tellAceAuthorInfo = (userId, colorId, inactive) => {
if (typeof colorId === 'number') { if (typeof colorId === 'number') {
colorId = clientVars.colorPalette[colorId]; colorId = clientVars.colorPalette[colorId];
} }
@ -436,91 +422,81 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
bgcolor: cssColor, bgcolor: cssColor,
}); });
} }
} };
function fadeAceAuthorInfo(userInfo) { const fadeAceAuthorInfo = (userInfo) => {
tellAceAuthorInfo(userInfo.userId, userInfo.colorId, true); tellAceAuthorInfo(userInfo.userId, userInfo.colorId, true);
} };
function getConnectedUsers() { const getConnectedUsers = () => valuesArray(userSet);
return valuesArray(userSet);
}
function tellAceAboutHistoricalAuthors(hadata) { const tellAceAboutHistoricalAuthors = (hadata) => {
for (const author in hadata) { for (const [author, data] of Object.entries(hadata)) {
const data = hadata[author];
if (!userSet[author]) { if (!userSet[author]) {
tellAceAuthorInfo(author, data.colorId, true); tellAceAuthorInfo(author, data.colorId, true);
} }
} }
} };
function setChannelState(newChannelState, moreInfo) { const setChannelState = (newChannelState, moreInfo) => {
if (newChannelState != channelState) { if (newChannelState !== channelState) {
channelState = newChannelState; channelState = newChannelState;
callbacks.onChannelStateChange(channelState, moreInfo); callbacks.onChannelStateChange(channelState, moreInfo);
} }
} };
function valuesArray(obj) { const valuesArray = (obj) => {
const array = []; const array = [];
$.each(obj, (k, v) => { $.each(obj, (k, v) => {
array.push(v); array.push(v);
}); });
return array; return array;
} };
// We need to present a working interface even before the socket // We need to present a working interface even before the socket
// is connected for the first time. // is connected for the first time.
let deferredActions = []; let deferredActions = [];
function defer(func, tag) { const defer = (func, tag) => function (...args) {
return function () { const action = () => {
const that = this; func.call(this, ...args);
const args = arguments;
function action() {
func.apply(that, args);
}
action.tag = tag;
if (channelState == 'CONNECTING') {
deferredActions.push(action);
} else {
action();
}
}; };
} action.tag = tag;
if (channelState === 'CONNECTING') {
deferredActions.push(action);
} else {
action();
}
};
function doDeferredActions(tag) { const doDeferredActions = (tag) => {
const newArray = []; const newArray = [];
for (let i = 0; i < deferredActions.length; i++) { for (let i = 0; i < deferredActions.length; i++) {
const a = deferredActions[i]; const a = deferredActions[i];
if ((!tag) || (tag == a.tag)) { if ((!tag) || (tag === a.tag)) {
a(); a();
} else { } else {
newArray.push(a); newArray.push(a);
} }
} }
deferredActions = newArray; deferredActions = newArray;
} };
function sendClientMessage(msg) { const sendClientMessage = (msg) => {
sendMessage( sendMessage(
{ {
type: 'CLIENT_MESSAGE', type: 'CLIENT_MESSAGE',
payload: msg, payload: msg,
}); });
} };
function getCurrentRevisionNumber() { const getCurrentRevisionNumber = () => rev;
return rev;
}
function getMissedChanges() { const getMissedChanges = () => {
const obj = {}; const obj = {};
obj.userInfo = userSet[userId]; obj.userInfo = userSet[userId];
obj.baseRev = rev; obj.baseRev = rev;
if (state == 'COMMITTING' && stateMessage) { if (state === 'COMMITTING' && stateMessage) {
obj.committedChangeset = stateMessage.changeset; obj.committedChangeset = stateMessage.changeset;
obj.committedChangesetAPool = stateMessage.apool; obj.committedChangesetAPool = stateMessage.apool;
editor.applyPreparedChangesetToBase(); editor.applyPreparedChangesetToBase();
@ -531,56 +507,56 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
obj.furtherChangesetAPool = userChangesData.apool; obj.furtherChangesetAPool = userChangesData.apool;
} }
return obj; return obj;
} };
function setStateIdle() { const setStateIdle = () => {
state = 'IDLE'; state = 'IDLE';
callbacks.onInternalAction('newlyIdle'); callbacks.onInternalAction('newlyIdle');
schedulePerhapsCallIdleFuncs(); schedulePerhapsCallIdleFuncs();
} };
function setIsPendingRevision(value) { const setIsPendingRevision = (value) => {
isPendingRevision = value; isPendingRevision = value;
} };
function callWhenNotCommitting(func) { const idleFuncs = [];
const callWhenNotCommitting = (func) => {
idleFuncs.push(func); idleFuncs.push(func);
schedulePerhapsCallIdleFuncs(); schedulePerhapsCallIdleFuncs();
} };
var idleFuncs = []; const schedulePerhapsCallIdleFuncs = () => {
function schedulePerhapsCallIdleFuncs() {
setTimeout(() => { setTimeout(() => {
if (state == 'IDLE') { if (state === 'IDLE') {
while (idleFuncs.length > 0) { while (idleFuncs.length > 0) {
const f = idleFuncs.shift(); const f = idleFuncs.shift();
f(); f();
} }
} }
}, 0); }, 0);
} };
const self = { const self = {
setOnUserJoin(cb) { setOnUserJoin: (cb) => {
callbacks.onUserJoin = cb; callbacks.onUserJoin = cb;
}, },
setOnUserLeave(cb) { setOnUserLeave: (cb) => {
callbacks.onUserLeave = cb; callbacks.onUserLeave = cb;
}, },
setOnUpdateUserInfo(cb) { setOnUpdateUserInfo: (cb) => {
callbacks.onUpdateUserInfo = cb; callbacks.onUpdateUserInfo = cb;
}, },
setOnChannelStateChange(cb) { setOnChannelStateChange: (cb) => {
callbacks.onChannelStateChange = cb; callbacks.onChannelStateChange = cb;
}, },
setOnClientMessage(cb) { setOnClientMessage: (cb) => {
callbacks.onClientMessage = cb; callbacks.onClientMessage = cb;
}, },
setOnInternalAction(cb) { setOnInternalAction: (cb) => {
callbacks.onInternalAction = cb; callbacks.onInternalAction = cb;
}, },
setOnConnectionTrouble(cb) { setOnConnectionTrouble: (cb) => {
callbacks.onConnectionTrouble = cb; callbacks.onConnectionTrouble = cb;
}, },
updateUserInfo: defer(updateUserInfo), updateUserInfo: defer(updateUserInfo),
@ -597,6 +573,14 @@ function getCollabClient(ace2editor, serverVars, initialUserInfo, options, _pad)
setIsPendingRevision, setIsPendingRevision,
}; };
tellAceAboutHistoricalAuthors(serverVars.historicalAuthorData);
tellAceActiveAuthorInfo(initialUserInfo);
editor.setProperty('userAuthor', userId);
editor.setBaseAttributedText(serverVars.initialAttributedText, serverVars.apool);
editor.setUserChangeNotificationCallback(
wrapRecordingErrors('handleUserChanges', handleUserChanges));
setUpSocket(); setUpSocket();
return self; return self;
} }