cleaned up updateIcon to use promises to avoid a bunch of setTimeouts

1 files changed, 12 insertions, 1 deletions

diff --git a/src/client/views/nodes/DocumentView.tsx b/src/client/views/nodes/DocumentView.tsx
index 4cc7eb0ff..c279badf4 100644
--- a/src/client/views/nodes/DocumentView.tsx
+++ b/src/client/views/nodes/DocumentView.tsx
@@ -16,7 +16,7 @@ import { List } from '../../../fields/List';
 import { PrefetchProxy } from '../../../fields/Proxy';
 import { listSpec } from '../../../fields/Schema';
 import { ScriptField } from '../../../fields/ScriptField';
-import { BoolCast, Cast, DocCast, NumCast, RTFCast, ScriptCast, StrCast } from '../../../fields/Types';
+import { BoolCast, Cast, DocCast, ImageCast, NumCast, RTFCast, ScriptCast, StrCast } from '../../../fields/Types';
 import { AudioField } from '../../../fields/URLField';
 import { GetEffectiveAcl, TraceMobx } from '../../../fields/util';
 import { AudioAnnoState } from '../../../server/SharedMediaTypes';
@@ -1087,6 +1087,17 @@ export class DocumentView extends DocComponent<DocumentViewProps>() {
      * Pins a Doc to the current presentation trail. (see TabDocView for implementation)
      */
     public static PinDoc: (docIn: Doc | Doc[], pinProps: PinProps) => void;
+
+    /**
+     * Renders an image of a Doc into the Doc's icon field, then returns a promise for the image value
+     * @param doc Doc to snapshot
+     * @returns promise of icon ImageField
+     */
+    public static GetDocImage(doc: Doc) {
+        return DocumentView.getDocumentView(doc)
+            ?.ComponentView?.updateIcon?.()
+            .then(() => ImageCast(DocCast(doc).icon));
+    }
     /**
      * The DocumentView below the cursor at the start of a gesture (that receives the pointerDown event).  Used by GestureOverlay to determine the doc a gesture should apply to.
      */