mirror of
https://github.com/overleaf/overleaf.git
synced 2024-11-07 20:31:06 -05:00
1213709578
[web] migrate frontend logging to debugConsole GitOrigin-RevId: b03ff9030b03fff059738d2270bc4b4912e79f16
810 lines
24 KiB
JavaScript
810 lines
24 KiB
JavaScript
/* eslint-disable
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camelcase,
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n/handle-callback-err,
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max-len,
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*/
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// TODO: This file was created by bulk-decaffeinate.
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// Fix any style issues and re-enable lint.
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/*
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* decaffeinate suggestions:
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* DS001: Remove Babel/TypeScript constructor workaround
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* DS101: Remove unnecessary use of Array.from
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* DS102: Remove unnecessary code created because of implicit returns
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* DS103: Rewrite code to no longer use __guard__
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* DS205: Consider reworking code to avoid use of IIFEs
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* DS206: Consider reworking classes to avoid initClass
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* DS207: Consider shorter variations of null checks
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* Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
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*/
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import RangesTracker from '@overleaf/ranges-tracker'
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import EventEmitter from '../../utils/EventEmitter'
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import ShareJsDoc from './ShareJsDoc'
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import { debugConsole } from '@/utils/debugging'
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let Document
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export default Document = (function () {
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Document = class Document extends EventEmitter {
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static initClass() {
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this.prototype.MAX_PENDING_OP_SIZE = 64
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}
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static getDocument(ide, doc_id) {
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if (!this.openDocs) {
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this.openDocs = {}
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}
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// Try to clean up existing docs before reopening them. If the doc has no
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// buffered ops then it will be deleted by _cleanup() and a new instance
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// of the document created below. This prevents us trying to follow the
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// joinDoc:existing code path on an existing doc that doesn't have any
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// local changes and getting an error if its version is too old.
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if (this.openDocs[doc_id]) {
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debugConsole.log(
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`[getDocument] Cleaning up existing document instance for ${doc_id}`
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)
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this.openDocs[doc_id]._cleanUp()
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}
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if (this.openDocs[doc_id] == null) {
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debugConsole.log(
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`[getDocument] Creating new document instance for ${doc_id}`
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)
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this.openDocs[doc_id] = new Document(ide, doc_id)
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} else {
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debugConsole.log(
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`[getDocument] Returning existing document instance for ${doc_id}`
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)
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}
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return this.openDocs[doc_id]
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}
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static hasUnsavedChanges() {
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const object = this.openDocs || {}
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for (const doc_id in object) {
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const doc = object[doc_id]
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if (doc.hasBufferedOps()) {
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return true
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}
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}
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return false
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}
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static flushAll() {
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return (() => {
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const result = []
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for (const doc_id in this.openDocs) {
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const doc = this.openDocs[doc_id]
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result.push(doc.flush())
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}
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return result
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})()
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}
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constructor(ide, doc_id) {
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super()
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this.ide = ide
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this.doc_id = doc_id
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this.connected = this.ide.socket.socket.connected
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this.joined = false
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this.wantToBeJoined = false
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this._checkAceConsistency = () => this._checkConsistency(this.ace)
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this._checkCM6Consistency = () => this._checkConsistency(this.cm6)
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this._bindToEditorEvents()
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this._bindToSocketEvents()
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}
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editorType() {
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if (this.ace) {
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return 'ace'
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} else if (this.cm6) {
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return 'cm6'
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} else {
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return null
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}
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}
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attachToAce(ace) {
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this.ace = ace
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if (this.doc != null) {
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this.doc.attachToAce(this.ace)
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}
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const editorDoc = this.ace.getSession().getDocument()
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editorDoc.on('change', this._checkAceConsistency)
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return this.ide.$scope.$emit('document:opened', this.doc)
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}
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detachFromAce() {
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if (this.doc != null) {
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this.doc.detachFromAce()
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}
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const editorDoc =
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this.ace != null ? this.ace.getSession().getDocument() : undefined
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if (editorDoc != null) {
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editorDoc.off('change', this._checkAceConsistency)
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}
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delete this.ace
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this.clearChaosMonkey()
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return this.ide.$scope.$emit('document:closed', this.doc)
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}
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attachToCM6(cm6) {
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this.cm6 = cm6
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if (this.doc != null) {
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this.doc.attachToCM6(this.cm6)
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}
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if (this.cm6 != null) {
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this.cm6.on('change', this._checkCM6Consistency)
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}
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return this.ide.$scope.$emit('document:opened', this.doc)
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}
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detachFromCM6() {
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if (this.doc != null) {
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this.doc.detachFromCM6()
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}
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if (this.cm6 != null) {
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this.cm6.off('change', this._checkCM6Consistency)
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}
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delete this.cm6
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this.clearChaosMonkey()
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return this.ide.$scope.$emit('document:closed', this.doc)
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}
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submitOp(...args) {
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return this.doc != null
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? this.doc.submitOp(...Array.from(args || []))
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: undefined
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}
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_checkConsistency(editor) {
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// We've been seeing a lot of errors when I think there shouldn't be
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// any, which may be related to this check happening before the change is
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// applied. If we use a timeout, hopefully we can reduce this.
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return setTimeout(() => {
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const editorValue = editor != null ? editor.getValue() : undefined
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const sharejsValue =
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this.doc != null ? this.doc.getSnapshot() : undefined
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if (editorValue !== sharejsValue) {
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return this._onError(
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new Error('Editor text does not match server text'),
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{},
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editorValue
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)
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}
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}, 0)
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}
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getSnapshot() {
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return this.doc != null ? this.doc.getSnapshot() : undefined
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}
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getType() {
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return this.doc != null ? this.doc.getType() : undefined
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}
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getInflightOp() {
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return this.doc != null ? this.doc.getInflightOp() : undefined
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}
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getPendingOp() {
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return this.doc != null ? this.doc.getPendingOp() : undefined
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}
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getRecentAck() {
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return this.doc != null ? this.doc.getRecentAck() : undefined
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}
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getOpSize(op) {
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return this.doc != null ? this.doc.getOpSize(op) : undefined
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}
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hasBufferedOps() {
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return this.doc != null ? this.doc.hasBufferedOps() : undefined
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}
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setTrackingChanges(track_changes) {
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return (this.doc.track_changes = track_changes)
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}
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getTrackingChanges() {
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return !!this.doc.track_changes
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}
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setTrackChangesIdSeeds(id_seeds) {
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return (this.doc.track_changes_id_seeds = id_seeds)
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}
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_bindToSocketEvents() {
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this._onUpdateAppliedHandler = update => this._onUpdateApplied(update)
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this.ide.socket.on('otUpdateApplied', this._onUpdateAppliedHandler)
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this._onErrorHandler = (error, message) => {
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// 'otUpdateError' are emitted per doc socket.io room, hence we can be
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// sure that message.doc_id exists.
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if (message.doc_id !== this.doc_id) {
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// This error is for another doc. Do not action it. We could open
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// a modal that has the wrong context on it.
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return
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}
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this._onError(error, message)
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}
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this.ide.socket.on('otUpdateError', this._onErrorHandler)
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this._onDisconnectHandler = error => this._onDisconnect(error)
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return this.ide.socket.on('disconnect', this._onDisconnectHandler)
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}
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_bindToEditorEvents() {
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const onReconnectHandler = update => {
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return this._onReconnect(update)
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}
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return (this._unsubscribeReconnectHandler = this.ide.$scope.$on(
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'project:joined',
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onReconnectHandler
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))
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}
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_unBindFromEditorEvents() {
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return this._unsubscribeReconnectHandler()
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}
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_unBindFromSocketEvents() {
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this.ide.socket.removeListener(
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'otUpdateApplied',
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this._onUpdateAppliedHandler
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)
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this.ide.socket.removeListener('otUpdateError', this._onErrorHandler)
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return this.ide.socket.removeListener(
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'disconnect',
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this._onDisconnectHandler
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)
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}
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leaveAndCleanUp(cb) {
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return this.leave(error => {
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this._cleanUp()
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if (cb) cb(error)
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})
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}
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join(callback) {
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if (callback == null) {
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callback = function () {}
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}
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this.wantToBeJoined = true
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this._cancelLeave()
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if (this.connected) {
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return this._joinDoc(callback)
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} else {
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if (!this._joinCallbacks) {
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this._joinCallbacks = []
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}
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return this._joinCallbacks.push(callback)
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}
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}
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leave(callback) {
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if (callback == null) {
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callback = function () {}
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}
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this.flush() // force an immediate flush when leaving document
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this.wantToBeJoined = false
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this._cancelJoin()
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if (this.doc != null && this.doc.hasBufferedOps()) {
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debugConsole.log(
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'[leave] Doc has buffered ops, pushing callback for later'
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)
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if (!this._leaveCallbacks) {
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this._leaveCallbacks = []
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}
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return this._leaveCallbacks.push(callback)
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} else if (!this.connected) {
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debugConsole.log('[leave] Not connected, returning now')
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return callback()
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} else {
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debugConsole.log('[leave] Leaving now')
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return this._leaveDoc(callback)
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}
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}
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flush() {
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return this.doc != null ? this.doc.flushPendingOps() : undefined
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}
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chaosMonkey(line, char) {
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if (line == null) {
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line = 0
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}
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if (char == null) {
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char = 'a'
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}
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const orig = char
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let copy = null
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let pos = 0
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const timer = () => {
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if (copy == null || !copy.length) {
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copy = orig.slice() + ' ' + new Date() + '\n'
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line += Math.random() > 0.1 ? 1 : -2
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if (line < 0) {
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line = 0
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}
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pos = 0
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}
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char = copy[0]
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copy = copy.slice(1)
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if (this.ace) {
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this.ace.session.insert({ row: line, column: pos }, char)
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} else if (this.cm6) {
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this.cm6.view.dispatch({
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changes: {
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from: Math.min(pos, this.cm6.view.state.doc.length),
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insert: char,
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},
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})
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}
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pos += 1
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return (this._cm = setTimeout(
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timer,
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100 + (Math.random() < 0.1 ? 1000 : 0)
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))
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}
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return (this._cm = timer())
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}
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clearChaosMonkey() {
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const timer = this._cm
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if (timer) {
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delete this._cm
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return clearTimeout(timer)
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}
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}
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pollSavedStatus() {
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// returns false if doc has ops waiting to be acknowledged or
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// sent that haven't changed since the last time we checked.
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// Otherwise returns true.
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let saved
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const inflightOp = this.getInflightOp()
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const pendingOp = this.getPendingOp()
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const recentAck = this.getRecentAck()
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const pendingOpSize = pendingOp != null && this.getOpSize(pendingOp)
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if (inflightOp == null && pendingOp == null) {
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// there's nothing going on, this is ok.
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saved = true
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debugConsole.log('[pollSavedStatus] no inflight or pending ops')
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} else if (inflightOp != null && inflightOp === this.oldInflightOp) {
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// The same inflight op has been sitting unacked since we
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// last checked, this is bad.
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saved = false
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debugConsole.log('[pollSavedStatus] inflight op is same as before')
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} else if (
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pendingOp != null &&
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recentAck &&
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pendingOpSize < this.MAX_PENDING_OP_SIZE
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) {
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// There is an op waiting to go to server but it is small and
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// within the flushDelay, this is ok for now.
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saved = true
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debugConsole.log(
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'[pollSavedStatus] pending op (small with recent ack) assume ok',
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pendingOp,
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pendingOpSize
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)
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} else {
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// In any other situation, assume the document is unsaved.
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saved = false
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debugConsole.log(
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`[pollSavedStatus] assuming not saved (inflightOp?: ${
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inflightOp != null
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}, pendingOp?: ${pendingOp != null})`
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)
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}
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this.oldInflightOp = inflightOp
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return saved
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}
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_cancelLeave() {
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if (this._leaveCallbacks != null) {
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return delete this._leaveCallbacks
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}
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}
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_cancelJoin() {
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if (this._joinCallbacks != null) {
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return delete this._joinCallbacks
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}
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}
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_onUpdateApplied(update) {
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this.ide.pushEvent('received-update', {
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doc_id: this.doc_id,
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remote_doc_id: update != null ? update.doc : undefined,
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wantToBeJoined: this.wantToBeJoined,
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update,
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hasDoc: this.doc != null,
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})
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if (
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window.disconnectOnAck != null &&
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Math.random() < window.disconnectOnAck
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) {
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debugConsole.log('Disconnecting on ack', update)
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window._ide.socket.socket.disconnect()
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// Pretend we never received the ack
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return
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}
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if (window.dropAcks != null && Math.random() < window.dropAcks) {
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if (update.op == null) {
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// Only drop our own acks, not collaborator updates
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debugConsole.log('Simulating a lost ack', update)
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return
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}
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}
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if (
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(update != null ? update.doc : undefined) === this.doc_id &&
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this.doc != null
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) {
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this.ide.pushEvent('received-update:processing', {
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update,
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})
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// FIXME: change this back to processUpdateFromServer when redis fixed
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this.doc.processUpdateFromServerInOrder(update)
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if (!this.wantToBeJoined) {
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return this.leave()
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}
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}
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}
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_onDisconnect() {
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debugConsole.log('[onDisconnect] disconnecting')
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this.connected = false
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this.joined = false
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return this.doc != null
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? this.doc.updateConnectionState('disconnected')
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: undefined
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}
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_onReconnect() {
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debugConsole.log('[onReconnect] reconnected (joined project)')
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this.ide.pushEvent('reconnected:afterJoinProject')
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this.connected = true
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if (
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this.wantToBeJoined ||
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(this.doc != null ? this.doc.hasBufferedOps() : undefined)
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) {
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debugConsole.log(
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`[onReconnect] Rejoining (wantToBeJoined: ${
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this.wantToBeJoined
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} OR hasBufferedOps: ${
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this.doc != null ? this.doc.hasBufferedOps() : undefined
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})`
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)
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return this._joinDoc(error => {
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if (error != null) {
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return this._onError(error)
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}
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this.doc.updateConnectionState('ok')
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this.doc.flushPendingOps()
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return this._callJoinCallbacks()
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})
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}
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}
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_callJoinCallbacks() {
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for (const callback of Array.from(this._joinCallbacks || [])) {
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callback()
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}
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return delete this._joinCallbacks
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}
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_joinDoc(callback) {
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if (callback == null) {
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callback = function () {}
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}
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if (this.doc != null) {
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this.ide.pushEvent('joinDoc:existing', {
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doc_id: this.doc_id,
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version: this.doc.getVersion(),
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})
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return this.ide.socket.emit(
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'joinDoc',
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this.doc_id,
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this.doc.getVersion(),
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{ encodeRanges: true },
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(error, docLines, version, updates, ranges) => {
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if (error != null) {
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return callback(error)
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}
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this.joined = true
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this.doc.catchUp(updates)
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this._decodeRanges(ranges)
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this._catchUpRanges(
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ranges != null ? ranges.changes : undefined,
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ranges != null ? ranges.comments : undefined
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)
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return callback()
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}
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)
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} else {
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this.ide.pushEvent('joinDoc:new', {
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doc_id: this.doc_id,
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})
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return this.ide.socket.emit(
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'joinDoc',
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this.doc_id,
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{ encodeRanges: true },
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|
(error, docLines, version, updates, ranges) => {
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if (error != null) {
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return callback(error)
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}
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this.joined = true
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this.ide.pushEvent('joinDoc:inited', {
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doc_id: this.doc_id,
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version,
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})
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this.doc = new ShareJsDoc(
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this.doc_id,
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docLines,
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version,
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this.ide.socket,
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this.ide.globalEditorWatchdogManager
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)
|
|
this._decodeRanges(ranges)
|
|
this.ranges = new RangesTracker(
|
|
ranges != null ? ranges.changes : undefined,
|
|
ranges != null ? ranges.comments : undefined
|
|
)
|
|
this._bindToShareJsDocEvents()
|
|
return callback()
|
|
}
|
|
)
|
|
}
|
|
}
|
|
|
|
_decodeRanges(ranges) {
|
|
const decodeFromWebsockets = text => decodeURIComponent(escape(text))
|
|
try {
|
|
for (const change of Array.from(ranges.changes || [])) {
|
|
if (change.op.i != null) {
|
|
change.op.i = decodeFromWebsockets(change.op.i)
|
|
}
|
|
if (change.op.d != null) {
|
|
change.op.d = decodeFromWebsockets(change.op.d)
|
|
}
|
|
}
|
|
return (() => {
|
|
const result = []
|
|
for (const comment of Array.from(ranges.comments || [])) {
|
|
if (comment.op.c != null) {
|
|
result.push((comment.op.c = decodeFromWebsockets(comment.op.c)))
|
|
} else {
|
|
result.push(undefined)
|
|
}
|
|
}
|
|
return result
|
|
})()
|
|
} catch (err) {
|
|
debugConsole.error(err)
|
|
}
|
|
}
|
|
|
|
_leaveDoc(callback) {
|
|
if (callback == null) {
|
|
callback = function () {}
|
|
}
|
|
this.ide.pushEvent('leaveDoc', {
|
|
doc_id: this.doc_id,
|
|
})
|
|
debugConsole.log('[_leaveDoc] Sending leaveDoc request')
|
|
return this.ide.socket.emit('leaveDoc', this.doc_id, error => {
|
|
if (error != null) {
|
|
return callback(error)
|
|
}
|
|
this.joined = false
|
|
for (callback of Array.from(this._leaveCallbacks || [])) {
|
|
debugConsole.log('[_leaveDoc] Calling buffered callback', callback)
|
|
callback(error)
|
|
}
|
|
delete this._leaveCallbacks
|
|
return callback(error)
|
|
})
|
|
}
|
|
|
|
_cleanUp() {
|
|
// if we arrive here from _onError the pending and inflight ops will have been cleared
|
|
if (this.hasBufferedOps()) {
|
|
debugConsole.log(
|
|
`[_cleanUp] Document (${this.doc_id}) has buffered ops, refusing to remove from openDocs`
|
|
)
|
|
return // return immediately, do not unbind from events
|
|
} else if (Document.openDocs[this.doc_id] === this) {
|
|
debugConsole.log(
|
|
`[_cleanUp] Removing self (${this.doc_id}) from in openDocs`
|
|
)
|
|
delete Document.openDocs[this.doc_id]
|
|
} else {
|
|
// It's possible that this instance has error, and the doc has been reloaded.
|
|
// This creates a new instance in Document.openDoc with the same id. We shouldn't
|
|
// clear it because it's not this instance.
|
|
debugConsole.log(
|
|
`[_cleanUp] New instance of (${this.doc_id}) created. Not removing`
|
|
)
|
|
}
|
|
this._unBindFromEditorEvents()
|
|
return this._unBindFromSocketEvents()
|
|
}
|
|
|
|
_bindToShareJsDocEvents() {
|
|
this.doc.on('error', (error, meta) => this._onError(error, meta))
|
|
this.doc.on('externalUpdate', update => {
|
|
this.ide.pushEvent('externalUpdate', { doc_id: this.doc_id })
|
|
return this.trigger('externalUpdate', update)
|
|
})
|
|
this.doc.on('remoteop', (...args) => {
|
|
this.ide.pushEvent('remoteop', { doc_id: this.doc_id })
|
|
return this.trigger('remoteop', ...Array.from(args))
|
|
})
|
|
this.doc.on('op:sent', op => {
|
|
this.ide.pushEvent('op:sent', {
|
|
doc_id: this.doc_id,
|
|
op,
|
|
})
|
|
return this.trigger('op:sent')
|
|
})
|
|
this.doc.on('op:acknowledged', op => {
|
|
this.ide.pushEvent('op:acknowledged', {
|
|
doc_id: this.doc_id,
|
|
op,
|
|
})
|
|
this.ide.$scope.$emit('ide:opAcknowledged', {
|
|
doc_id: this.doc_id,
|
|
op,
|
|
})
|
|
return this.trigger('op:acknowledged')
|
|
})
|
|
this.doc.on('op:timeout', op => {
|
|
this.ide.pushEvent('op:timeout', {
|
|
doc_id: this.doc_id,
|
|
op,
|
|
})
|
|
this.trigger('op:timeout')
|
|
return this._onError(new Error('op timed out'))
|
|
})
|
|
this.doc.on('flush', (inflightOp, pendingOp, version) => {
|
|
return this.ide.pushEvent('flush', {
|
|
doc_id: this.doc_id,
|
|
inflightOp,
|
|
pendingOp,
|
|
v: version,
|
|
})
|
|
})
|
|
|
|
let docChangedTimeout
|
|
this.doc.on('change', (ops, oldSnapshot, msg) => {
|
|
this._applyOpsToRanges(ops, oldSnapshot, msg)
|
|
if (docChangedTimeout) {
|
|
window.clearTimeout(docChangedTimeout)
|
|
}
|
|
docChangedTimeout = window.setTimeout(() => {
|
|
window.dispatchEvent(
|
|
new CustomEvent('doc:changed', { detail: { id: this.doc_id } })
|
|
)
|
|
this.ide.$scope.$emit('doc:changed', { doc_id: this.doc_id })
|
|
}, 50)
|
|
})
|
|
|
|
this.doc.on('flipped_pending_to_inflight', () => {
|
|
return this.trigger('flipped_pending_to_inflight')
|
|
})
|
|
|
|
let docSavedTimeout
|
|
this.doc.on('saved', () => {
|
|
if (docSavedTimeout) {
|
|
window.clearTimeout(docSavedTimeout)
|
|
}
|
|
docSavedTimeout = window.setTimeout(() => {
|
|
window.dispatchEvent(
|
|
new CustomEvent('doc:saved', { detail: { id: this.doc_id } })
|
|
)
|
|
this.ide.$scope.$emit('doc:saved', { doc_id: this.doc_id })
|
|
}, 50)
|
|
})
|
|
}
|
|
|
|
_onError(error, meta, editorContent) {
|
|
if (meta == null) {
|
|
meta = {}
|
|
}
|
|
meta.doc_id = this.doc_id
|
|
debugConsole.log('ShareJS error', error, meta)
|
|
if (error.message === 'no project_id found on client') {
|
|
debugConsole.log('ignoring error, will wait to join project')
|
|
return
|
|
}
|
|
if (this.doc != null) {
|
|
this.doc.clearInflightAndPendingOps()
|
|
}
|
|
this.trigger('error', error, meta, editorContent)
|
|
// The clean up should run after the error is triggered because the error triggers a
|
|
// disconnect. If we run the clean up first, we remove our event handlers and miss
|
|
// the disconnect event, which means we try to leaveDoc when the connection comes back.
|
|
// This could intefere with the new connection of a new instance of this document.
|
|
return this._cleanUp()
|
|
}
|
|
|
|
_applyOpsToRanges(ops, oldSnapshot, msg) {
|
|
let old_id_seed
|
|
if (ops == null) {
|
|
ops = []
|
|
}
|
|
let track_changes_as = null
|
|
const remote_op = msg != null
|
|
if (__guard__(msg != null ? msg.meta : undefined, x => x.tc) != null) {
|
|
old_id_seed = this.ranges.getIdSeed()
|
|
this.ranges.setIdSeed(msg.meta.tc)
|
|
}
|
|
if (remote_op && (msg.meta != null ? msg.meta.tc : undefined)) {
|
|
track_changes_as = msg.meta.user_id
|
|
} else if (!remote_op && this.track_changes_as != null) {
|
|
;({ track_changes_as } = this)
|
|
}
|
|
this.ranges.track_changes = track_changes_as != null
|
|
for (const op of this._filterOps(ops)) {
|
|
this.ranges.applyOp(op, { user_id: track_changes_as })
|
|
}
|
|
if (old_id_seed != null) {
|
|
this.ranges.setIdSeed(old_id_seed)
|
|
}
|
|
if (remote_op) {
|
|
// With remote ops, Ace hasn't been updated when we receive this op,
|
|
// so defer updating track changes until it has
|
|
return setTimeout(() => this.emit('ranges:dirty'))
|
|
} else {
|
|
return this.emit('ranges:dirty')
|
|
}
|
|
}
|
|
|
|
_catchUpRanges(changes, comments) {
|
|
// We've just been given the current server's ranges, but need to apply any local ops we have.
|
|
// Reset to the server state then apply our local ops again.
|
|
if (changes == null) {
|
|
changes = []
|
|
}
|
|
if (comments == null) {
|
|
comments = []
|
|
}
|
|
this.emit('ranges:clear')
|
|
this.ranges.changes = changes
|
|
this.ranges.comments = comments
|
|
this.ranges.track_changes = this.doc.track_changes
|
|
for (const op of this._filterOps(this.doc.getInflightOp() || [])) {
|
|
this.ranges.setIdSeed(this.doc.track_changes_id_seeds.inflight)
|
|
this.ranges.applyOp(op, { user_id: this.track_changes_as })
|
|
}
|
|
for (const op of this._filterOps(this.doc.getPendingOp() || [])) {
|
|
this.ranges.setIdSeed(this.doc.track_changes_id_seeds.pending)
|
|
this.ranges.applyOp(op, { user_id: this.track_changes_as })
|
|
}
|
|
return this.emit('ranges:redraw')
|
|
}
|
|
|
|
_filterOps(ops) {
|
|
// Read-only token users can't see/edit comment, so we filter out comment
|
|
// ops to avoid highlighting comment ranges.
|
|
if (window.isRestrictedTokenMember) {
|
|
return ops.filter(op => op.c == null)
|
|
} else {
|
|
return ops
|
|
}
|
|
}
|
|
}
|
|
Document.initClass()
|
|
return Document
|
|
})()
|
|
|
|
function __guard__(value, transform) {
|
|
return typeof value !== 'undefined' && value !== null
|
|
? transform(value)
|
|
: undefined
|
|
}
|