performance fixes - don't invalidate as much by using reactions in place of computd values; don't make things active when things are dragged unless CanEmbed; fix for linkBox to use reaction.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/client/util/SnappingManager.ts b/src/client/util/SnappingManager.ts
index 3cb41ab4d..c0cd94067 100644
--- a/src/client/util/SnappingManager.ts
+++ b/src/client/util/SnappingManager.ts
@@ -5,6 +5,7 @@ export namespace SnappingManager {
     class Manager {
         @observable IsDragging: boolean = false;
         @observable IsResizing: Doc | undefined;
+        @observable CanEmbed: boolean = false;
         @observable public horizSnapLines: number[] = [];
         @observable public vertSnapLines: number[] = [];
         @action public clearSnapLines() {
@@ -38,10 +39,16 @@ export namespace SnappingManager {
     export function SetIsResizing(doc: Doc | undefined) {
         runInAction(() => (manager.IsResizing = doc));
     }
+    export function SetCanEmbed(canEmbed: boolean) {
+        runInAction(() => (manager.CanEmbed = canEmbed));
+    }
     export function GetIsDragging() {
         return manager.IsDragging;
     }
     export function GetIsResizing() {
         return manager.IsResizing;
     }
+    export function GetCanEmbed() {
+        return manager.CanEmbed;
+    }
 }