Log and report events like sending and receiving updates

services/web/public/coffee/editor/Document.coffee

@@ -81,6 +81,12 @@ define [
 				delete @_joinCallbacks
 
 		_onUpdateApplied: (update) ->
+			@ide.pushEvent "received-update",
+				doc_id: @doc_id
+				remote_doc_id: update?.doc
+				wantToBeJoined: @wantToBeJoined
+				update: update
+
 			if update?.doc == @doc_id and @doc?
 				@doc.processUpdateFromServer update
 
@@ -93,6 +99,8 @@ define [
 			@doc?.updateConnectionState "disconnected"
 
 		_onReconnect: () ->
+			@ide.pushEvent "reconnected:afterJoinProject"
+
 			@connected = true
 			if @wantToBeJoined or @doc?.hasBufferedOps()
 				@_joinDoc (error) =>
@@ -137,10 +145,22 @@ define [
 
 		_bindToShareJsDocEvents: () ->
 			@doc.on "error", (error, meta) => @_onError error, meta
-			@doc.on "externalUpdate", () => @trigger "externalUpdate"
-			@doc.on "remoteop", () => @trigger "remoteop"
-			@doc.on "op:sent", () => @trigger "op:sent"
-			@doc.on "op:acknowledged", () => @trigger "op:acknowledged"
+			@doc.on "externalUpdate", () => 
+				@ide.pushEvent "externalUpdate",
+					doc_id: @doc_id
+				@trigger "externalUpdate"
+			@doc.on "remoteop", () => 
+				@ide.pushEvent "remoteop",
+					doc_id: @doc_id
+				@trigger "remoteop"
+			@doc.on "op:sent", () => 
+				@ide.pushEvent "op:sent",
+					doc_id: @doc_id
+				@trigger "op:sent"
+			@doc.on "op:acknowledged", () =>
+				@ide.pushEvent "op:acknowledged",
+					doc_id: @doc_id
+				@trigger "op:acknowledged"
 
 		_onError: (error, meta = {}) ->
 			console.error "ShareJS error", error, meta

services/web/public/coffee/ide.coffee

@@ -161,14 +161,18 @@ define [
 				buttons: [ text: "OK" ]
 			}
 
+		recentEvents: []
+
+		pushEvent: (type, meta = {}) ->
+			@recentEvents.push type: type, meta: meta, date: new Date()
+			if @recentEvents.length > 10
+				@recentEvents.shift()
+
 		reportError: (error, meta = {}) ->
 			meta.client_id = @socket?.socket?.sessionid
 			meta.transport = @socket?.socket?.transport?.name
 			meta.client_now = new Date()
-			meta.last_connected = @connectionManager.lastConnected
-			meta.second_last_connected = @connectionManager.secondLastConnected
-			meta.last_disconnected = @connectionManager.lastDisconnected
-			meta.second_last_disconnected = @connectionManager.secondLastDisconnected
+			meta.recent_events = @recentEvents
 			errorObj = {}
 			for key in Object.getOwnPropertyNames(error)
 				errorObj[key] = error[key]

services/web/public/coffee/ide/ConnectionManager.coffee

@@ -8,15 +8,13 @@ define [
 			@socket = @ide.socket
 			@socket.on "connect", () =>
 				@connected = true
-				@secondLastConnected = @lastConnected
-				@lastConnected = new Date()
+				@ide.pushEvent("connected")
 				@hideModal()
 				@cancelReconnect()
 
 			@socket.on 'disconnect', () =>
 				@connected = false
-				@secondLastDisconnected = @lastDisconnected
-				@lastDisconnected = new Date()
+				@ide.pushEvent("disconnected")
 				@ide.trigger "disconnect"
 				setTimeout(=>
 					ga('send', 'event', 'editor-interaction', 'disconnect')