На ConnectionStateChanged проверяем был ли пользователь в списке.

git-svn-id: svn://192.168.3.15/activex/AVS/Sources/TeamlabOffice/trunk/OfficeWeb@56732 954022d7-b5bf-4e40-9824-e11837661b57

Common/docscoapi.js

@@ -723,18 +723,22 @@
 	};
 
 	DocsCoApi.prototype._onConnectionStateChanged = function (data) {
-		var userStateChanged = null;
+		var userStateChanged = null, userId, stateChanged = false;
 		if (undefined !== data["state"] && this.onConnectionStateChanged) {
 			userStateChanged = new asc_user(data);
 
+			userId = userStateChanged.asc_getId();
 			if (userStateChanged.asc_getState()) {
-				this._participants[userStateChanged.asc_getId()] = userStateChanged;
+				this._participants[userId] = userStateChanged;
 				++this._countEditUsers;
-			} else {
-				delete this._participants[userStateChanged.asc_getId()];
+				stateChanged = true;
+			} else if (this._participants.hasOwnProperty(userId)){
+				delete this._participants[userId];
 				--this._countEditUsers;
+				stateChanged = true;
 			}
 
+			if (stateChanged) {
 				// Посылаем эвент о совместном редактировании
 				if (1 < this._countEditUsers)
 					this._onStartCoAuthoring(/*isStartEvent*/false);
@@ -744,6 +748,7 @@
 				this.onParticipantsChanged(this._participants, this._countEditUsers);
 				this.onConnectionStateChanged(userStateChanged);
 			}
+		}
 	};
 
 	DocsCoApi.prototype._onDrop = function (data) {