mirror of
https://github.com/overleaf/overleaf.git
synced 2024-10-31 21:21:03 -04:00
bf452bf306
The meta.source of an update is populated on the server side so we need to keep our local connection id up to date with it. When a duplicate op is submitted we must send all possible client ids that it could have been sent with.
260 lines
7.2 KiB
CoffeeScript
260 lines
7.2 KiB
CoffeeScript
define [
|
|
"utils/EventEmitter"
|
|
"ide/editor/ShareJsDoc"
|
|
], (EventEmitter, ShareJsDoc) ->
|
|
class Document extends EventEmitter
|
|
@getDocument: (ide, doc_id) ->
|
|
@openDocs ||= {}
|
|
if !@openDocs[doc_id]?
|
|
@openDocs[doc_id] = new Document(ide, doc_id)
|
|
return @openDocs[doc_id]
|
|
|
|
@hasUnsavedChanges: () ->
|
|
for doc_id, doc of (@openDocs or {})
|
|
return true if doc.hasBufferedOps()
|
|
return false
|
|
|
|
@flushAll: () ->
|
|
for doc_id, doc of @openDocs
|
|
doc.flush()
|
|
|
|
constructor: (@ide, @doc_id) ->
|
|
@connected = @ide.socket.socket.connected
|
|
@joined = false
|
|
@wantToBeJoined = false
|
|
@_checkConsistency = _.bind(@_checkConsistency, @)
|
|
@inconsistentCount = 0
|
|
@_bindToEditorEvents()
|
|
@_bindToSocketEvents()
|
|
|
|
attachToAce: (@ace) ->
|
|
@doc?.attachToAce(@ace)
|
|
editorDoc = @ace.getSession().getDocument()
|
|
editorDoc.on "change", @_checkConsistency
|
|
|
|
detachFromAce: () ->
|
|
@doc?.detachFromAce()
|
|
editorDoc = @ace?.getSession().getDocument()
|
|
editorDoc?.off "change", @_checkConsistency
|
|
|
|
_checkConsistency: () ->
|
|
# We've been seeing a lot of errors when I think there shouldn't be
|
|
# any, which may be related to this check happening before the change is
|
|
# applied. If we use a timeout, hopefully we can reduce this.
|
|
setTimeout () =>
|
|
editorValue = @ace?.getValue()
|
|
sharejsValue = @doc?.getSnapshot()
|
|
if editorValue != sharejsValue
|
|
@inconsistentCount++
|
|
else
|
|
@inconsistentCount = 0
|
|
|
|
if @inconsistentCount >= 3
|
|
@_onError new Error("Editor text does not match server text")
|
|
, 0
|
|
|
|
getSnapshot: () ->
|
|
@doc?.getSnapshot()
|
|
|
|
getType: () ->
|
|
@doc?.getType()
|
|
|
|
getInflightOp: () ->
|
|
@doc?.getInflightOp()
|
|
|
|
getPendingOp: () ->
|
|
@doc?.getPendingOp()
|
|
|
|
hasBufferedOps: () ->
|
|
@doc?.hasBufferedOps()
|
|
|
|
_bindToSocketEvents: () ->
|
|
@_onUpdateAppliedHandler = (update) => @_onUpdateApplied(update)
|
|
@ide.socket.on "otUpdateApplied", @_onUpdateAppliedHandler
|
|
@_onErrorHandler = (error, update) => @_onError(error, update)
|
|
@ide.socket.on "otUpdateError", @_onErrorHandler
|
|
@_onDisconnectHandler = (error) => @_onDisconnect(error)
|
|
@ide.socket.on "disconnect", @_onDisconnectHandler
|
|
|
|
_bindToEditorEvents: () ->
|
|
onReconnectHandler = (update) =>
|
|
@_onReconnect(update)
|
|
@_unsubscribeReconnectHandler = @ide.$scope.$on "project:joined", onReconnectHandler
|
|
|
|
_unBindFromEditorEvents: () ->
|
|
@_unsubscribeReconnectHandler()
|
|
|
|
_unBindFromSocketEvents: () ->
|
|
@ide.socket.removeListener "otUpdateApplied", @_onUpdateAppliedHandler
|
|
@ide.socket.removeListener "otUpdateError", @_onErrorHandler
|
|
@ide.socket.removeListener "disconnect", @_onDisconnectHandler
|
|
|
|
leaveAndCleanUp: () ->
|
|
@leave (error) =>
|
|
@_cleanUp()
|
|
|
|
join: (callback = (error) ->) ->
|
|
@wantToBeJoined = true
|
|
@_cancelLeave()
|
|
if @connected
|
|
return @_joinDoc callback
|
|
else
|
|
@_joinCallbacks ||= []
|
|
@_joinCallbacks.push callback
|
|
|
|
leave: (callback = (error) ->) ->
|
|
@wantToBeJoined = false
|
|
@_cancelJoin()
|
|
if (@doc? and @doc.hasBufferedOps())
|
|
@_leaveCallbacks ||= []
|
|
@_leaveCallbacks.push callback
|
|
else if !@connected
|
|
callback()
|
|
else
|
|
@_leaveDoc(callback)
|
|
|
|
flush: () ->
|
|
@doc?.flushPendingOps()
|
|
|
|
pollSavedStatus: () ->
|
|
# returns false if doc has ops waiting to be acknowledged or
|
|
# sent that haven't changed since the last time we checked.
|
|
# Otherwise returns true.
|
|
inflightOp = @getInflightOp()
|
|
pendingOp = @getPendingOp()
|
|
if !inflightOp? and !pendingOp?
|
|
# there's nothing going on
|
|
saved = true
|
|
else if inflightOp == @oldInflightOp
|
|
saved = false
|
|
else if pendingOp?
|
|
saved = false
|
|
else
|
|
saved = true
|
|
|
|
@oldInflightOp = inflightOp
|
|
return saved
|
|
|
|
_cancelLeave: () ->
|
|
if @_leaveCallbacks?
|
|
delete @_leaveCallbacks
|
|
|
|
_cancelJoin: () ->
|
|
if @_joinCallbacks?
|
|
delete @_joinCallbacks
|
|
|
|
_onUpdateApplied: (update) ->
|
|
@ide.pushEvent "received-update",
|
|
doc_id: @doc_id
|
|
remote_doc_id: update?.doc
|
|
wantToBeJoined: @wantToBeJoined
|
|
update: update
|
|
|
|
if window.disconnectOnAck? and Math.random() < window.disconnectOnAck
|
|
console.log "Disconnecting on ack", update
|
|
window._ide.socket.socket.disconnect()
|
|
# Pretend we never received the ack
|
|
return
|
|
|
|
if window.dropAcks? and Math.random() < window.dropAcks
|
|
if !update.op? # Only drop our own acks, not collaborator updates
|
|
console.log "Simulating a lost ack", update
|
|
return
|
|
|
|
if update?.doc == @doc_id and @doc?
|
|
@doc.processUpdateFromServer update
|
|
|
|
if !@wantToBeJoined
|
|
@leave()
|
|
|
|
_onDisconnect: () ->
|
|
@connected = false
|
|
@joined = false
|
|
@doc?.updateConnectionState "disconnected"
|
|
|
|
_onReconnect: () ->
|
|
@ide.pushEvent "reconnected:afterJoinProject"
|
|
|
|
@connected = true
|
|
if @wantToBeJoined or @doc?.hasBufferedOps()
|
|
@_joinDoc (error) =>
|
|
return @_onError(error) if error?
|
|
@doc.updateConnectionState "ok"
|
|
@doc.flushPendingOps()
|
|
@_callJoinCallbacks()
|
|
|
|
_callJoinCallbacks: () ->
|
|
for callback in @_joinCallbacks or []
|
|
callback()
|
|
delete @_joinCallbacks
|
|
|
|
_joinDoc: (callback = (error) ->) ->
|
|
if @doc?
|
|
@ide.socket.emit 'joinDoc', @doc_id, @doc.getVersion(), (error, docLines, version, updates) =>
|
|
return callback(error) if error?
|
|
@joined = true
|
|
@doc.catchUp( updates )
|
|
callback()
|
|
else
|
|
@ide.socket.emit 'joinDoc', @doc_id, (error, docLines, version) =>
|
|
return callback(error) if error?
|
|
@joined = true
|
|
@doc = new ShareJsDoc @doc_id, docLines, version, @ide.socket
|
|
@_bindToShareJsDocEvents()
|
|
callback()
|
|
|
|
_leaveDoc: (callback = (error) ->) ->
|
|
@ide.socket.emit 'leaveDoc', @doc_id, (error) =>
|
|
return callback(error) if error?
|
|
@joined = false
|
|
for callback in @_leaveCallbacks or []
|
|
callback(error)
|
|
delete @_leaveCallbacks
|
|
callback(error)
|
|
|
|
_cleanUp: () ->
|
|
delete Document.openDocs[@doc_id]
|
|
@_unBindFromEditorEvents()
|
|
@_unBindFromSocketEvents()
|
|
|
|
_bindToShareJsDocEvents: () ->
|
|
@doc.on "error", (error, meta) => @_onError error, meta
|
|
@doc.on "externalUpdate", (update) =>
|
|
@ide.pushEvent "externalUpdate",
|
|
doc_id: @doc_id
|
|
@trigger "externalUpdate", update
|
|
@doc.on "remoteop", () =>
|
|
@ide.pushEvent "remoteop",
|
|
doc_id: @doc_id
|
|
@trigger "remoteop"
|
|
@doc.on "op:sent", (op) =>
|
|
@ide.pushEvent "op:sent",
|
|
doc_id: @doc_id
|
|
op: op
|
|
@trigger "op:sent"
|
|
@doc.on "op:acknowledged", (op) =>
|
|
@ide.pushEvent "op:acknowledged",
|
|
doc_id: @doc_id
|
|
op: op
|
|
@trigger "op:acknowledged"
|
|
@doc.on "op:timeout", (op) =>
|
|
@ide.pushEvent "op:timeout",
|
|
doc_id: @doc_id
|
|
op: op
|
|
@trigger "op:timeout"
|
|
ga?('send', 'event', 'error', "op timeout", "Op was now acknowledged - #{@ide.socket.socket.transport.name}" )
|
|
@ide.connectionManager.reconnectImmediately()
|
|
@doc.on "flush", (inflightOp, pendingOp, version) =>
|
|
@ide.pushEvent "flush",
|
|
doc_id: @doc_id,
|
|
inflightOp: inflightOp,
|
|
pendingOp: pendingOp
|
|
v: version
|
|
|
|
_onError: (error, meta = {}) ->
|
|
meta.doc_id = @doc_id
|
|
console.error "ShareJS error", error, meta
|
|
ga?('send', 'event', 'error', "shareJsError", "#{error.message} - #{@ide.socket.socket.transport.name}" )
|
|
@doc?.clearInflightAndPendingOps()
|
|
@_cleanUp()
|
|
@trigger "error", error, meta
|