1 files changed, 33 insertions, 9 deletions

diff --git a/src/Utils.ts b/src/Utils.ts
index a5d9bd0ca..dec6245ef 100644
--- a/src/Utils.ts
+++ b/src/Utils.ts
@@ -1,24 +1,25 @@
 import v4 = require('uuid/v4');
 import v5 = require("uuid/v5");
 import { Socket } from 'socket.io';
-import { Message, Types } from './server/Message';
+import { Message, Types, Transferable } from './server/Message';
+import { Document } from './fields/Document';
 
 export class Utils {
 
     public static GenerateGuid(): string {
-        return v4()
+        return v4();
     }
 
     public static GenerateDeterministicGuid(seed: string): string {
-        return v5(seed, v5.URL)
+        return v5(seed, v5.URL);
     }
 
     public static GetScreenTransform(ele: HTMLElement): { scale: number, translateX: number, translateY: number } {
         if (!ele) {
-            return { scale: 1, translateX: 1, translateY: 1 }
+            return { scale: 1, translateX: 1, translateY: 1 };
         }
         const rect = ele.getBoundingClientRect();
-        const scale = ele.offsetWidth == 0 && rect.width == 0 ? 1 : rect.width / ele.offsetWidth;
+        const scale = ele.offsetWidth === 0 && rect.width === 0 ? 1 : rect.width / ele.offsetWidth;
         const translateX = rect.left;
         const translateY = rect.top;
 
@@ -47,7 +48,7 @@ export class Utils {
         if (this.logFilter !== undefined && this.logFilter !== message.type) {
             return;
         }
-        let idString = (message._id || message.id || "").padStart(36, ' ');
+        let idString = (message.id || "").padStart(36, ' ');
         prefix = prefix.padEnd(16, ' ');
         console.log(`${prefix}: ${idString}, ${receiving ? 'receiving' : 'sending'} ${messageName} with data ${JSON.stringify(message)}`);
     }
@@ -55,8 +56,8 @@ export class Utils {
         return (args: any) => {
             this.log(prefix, messageName, args, true);
             func(args);
-        }
-    };
+        };
+    }
 
     public static Emit<T>(socket: Socket | SocketIOClient.Socket, message: Message<T>, args: T) {
         this.log("Emit", message.Name, args, false);
@@ -81,9 +82,32 @@ export class Utils {
     public static AddServerHandlerCallback<T>(socket: Socket, message: Message<T>, handler: (args: [T, (res: any) => any]) => any) {
         socket.on(message.Message, (arg: T, fn: (res: any) => any) => {
             this.log('S receiving', message.Name, arg, true);
-            handler([arg, this.loggingCallback('S sending', fn, message.Name)])
+            handler([arg, this.loggingCallback('S sending', fn, message.Name)]);
         });
     }
 }
 
+export function OmitKeys(obj: any, keys: any, addKeyFunc?: (dup: any) => void) {
+    var dup: any = {};
+    for (var key in obj) {
+        if (keys.indexOf(key) === -1) {
+            dup[key] = obj[key];
+        }
+    }
+    addKeyFunc && addKeyFunc(dup);
+    return dup;
+}
+
+export function returnTrue() { return true; }
+
+export function returnFalse() { return false; }
+
+export function returnOne() { return 1; }
+
+export function returnZero() { return 0; }
+
+export function emptyFunction() { }
+
+export function emptyDocFunction(doc: Document) { }
+
 export type Without<T, K extends keyof T> = Pick<T, Exclude<keyof T, K>>;
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