added progressive disclosure for collections.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/client/views/nodes/DocumentView.tsx b/src/client/views/nodes/DocumentView.tsx
index b9c07ef6f..d15e9bcdc 100644
--- a/src/client/views/nodes/DocumentView.tsx
+++ b/src/client/views/nodes/DocumentView.tsx
@@ -1541,11 +1541,17 @@ export class DocumentView extends React.Component<DocumentViewProps> {
     } // this makes mobx trace() statements more descriptive
     public ContentRef = React.createRef<HTMLDivElement>();
     public ViewTimer: NodeJS.Timeout | undefined; // timer for res
+    public AnimEffectTimer: NodeJS.Timeout | undefined; // timer for res
     private _disposers: { [name: string]: IReactionDisposer } = {};
     public clearViewTransition = () => {
         this.ViewTimer && clearTimeout(this.ViewTimer);
         this.rootDoc._viewTransition = undefined;
     };
+    public setAnimEffect = (presEffect: Doc, timeInMs: number, afterTrans?: () => void) => {
+        this.AnimEffectTimer && clearTimeout(this.AnimEffectTimer);
+        this.rootDoc[AnimationSym] = presEffect;
+        this.AnimEffectTimer = setTimeout(() => (this.rootDoc[AnimationSym] = undefined), timeInMs);
+    };
     public setViewTransition = (transProp: string, timeInMs: number, afterTrans?: () => void, dataTrans = false) => {
         this.rootDoc._viewTransition = `${transProp} ${timeInMs}ms`;
         if (dataTrans) this.rootDoc._dataTransition = `${transProp} ${timeInMs}ms`;