single link can be dragged from link menu

2 files changed, 14 insertions, 2 deletions

diff --git a/src/client/util/DragManager.ts b/src/client/util/DragManager.ts
index b32c25b0a..82d30e0e6 100644
--- a/src/client/util/DragManager.ts
+++ b/src/client/util/DragManager.ts
@@ -43,6 +43,18 @@ export function SetupDrag(_reference: React.RefObject<HTMLElement>, docFunc: ()
     return onItemDown;
 }
 
+export async function DragLinkAsDocument(dragEle: HTMLElement, x: number, y: number, linkDoc: Doc, sourceDoc: Doc) {
+    let draggeddoc = LinkManager.Instance.findOppositeAnchor(linkDoc, sourceDoc);
+    let moddrag = await Cast(draggeddoc.annotationOn, Doc);
+    let dragData = new DragManager.DocumentDragData(moddrag ? [moddrag] : [draggeddoc]);
+    DragManager.StartDocumentDrag([dragEle], dragData, x, y, {
+        handlers: {
+            dragComplete: action(emptyFunction),
+        },
+        hideSource: false
+    });
+}
+
 export async function DragLinksAsDocuments(dragEle: HTMLElement, x: number, y: number, sourceDoc: Doc) {
     let srcTarg = sourceDoc.proto;
     let draggedDocs: Doc[] = [];
diff --git a/src/client/views/nodes/LinkBox.tsx b/src/client/views/nodes/LinkBox.tsx
index 09df1eac5..8d07547ed 100644
--- a/src/client/views/nodes/LinkBox.tsx
+++ b/src/client/views/nodes/LinkBox.tsx
@@ -10,7 +10,7 @@ import { Doc } from '../../../new_fields/Doc';
 import { StrCast, Cast } from '../../../new_fields/Types';
 import { observable, action } from 'mobx';
 import { LinkManager } from '../../util/LinkManager';
-import { DragLinksAsDocuments } from '../../util/DragManager';
+import { DragLinksAsDocuments, DragLinkAsDocument } from '../../util/DragManager';
 import { SelectionManager } from '../../util/SelectionManager';
 library.add(faEye, faEdit, faTimes, faArrowRight, faChevronDown, faChevronUp);
 
@@ -76,7 +76,7 @@ export class LinkBox extends React.Component<Props> {
             document.removeEventListener("pointermove", this.onLinkButtonMoved);
             document.removeEventListener("pointerup", this.onLinkButtonUp);
 
-            DragLinksAsDocuments(this._drag.current, e.x, e.y, SelectionManager.SelectedDocuments()[0].props.Document);
+            DragLinkAsDocument(this._drag.current, e.x, e.y, this.props.linkDoc, this.props.sourceDoc);
         }
         e.stopPropagation();
     }