From c5e401cb0a7fec2279ceecbc8d1429dcdd2f04b9 Mon Sep 17 00:00:00 2001
From: Fawn <fangrui_tong@brown.edu>
Date: Wed, 19 Jun 2019 22:27:21 -0400
Subject: buttons on cut links functional except for when dragged from link
 menu

---
 src/client/util/LinkManager.ts | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'src/client/util/LinkManager.ts')

diff --git a/src/client/util/LinkManager.ts b/src/client/util/LinkManager.ts
index 23ba9d2e4..544f2edda 100644
--- a/src/client/util/LinkManager.ts
+++ b/src/client/util/LinkManager.ts
@@ -1,4 +1,4 @@
-import { observable } from "mobx";
+import { observable, action } from "mobx";
 import { StrCast, Cast } from "../../new_fields/Types";
 import { Doc, DocListCast } from "../../new_fields/Doc";
 import { listSpec } from "../../new_fields/Schema";
@@ -32,6 +32,7 @@ export class LinkManager {
     @observable public allLinks: Array<Doc> = []; // list of link docs
     @observable public groupMetadataKeys: Map<string, Array<string>> = new Map();
     // map of group type to list of its metadata keys; serves as a dictionary of groups to what kind of metadata it hodls
+    @observable public linkProxies: Array<Doc> = []; // list of linkbutton docs - used to visualize link when an anchors are not in the same context
 
     // finds all links that contain the given anchor
     public findAllRelatedLinks(anchor: Doc): Array<Doc> {
@@ -134,4 +135,16 @@ export class LinkManager {
         }
     }
 
+    @action
+    public addLinkProxy(proxy: Doc) {
+        LinkManager.Instance.linkProxies.push(proxy);
+    }
+
+    public findLinkProxy(sourceViewId: string, targetViewId: string): Doc | undefined {
+        let index = LinkManager.Instance.linkProxies.findIndex(p => {
+            return StrCast(p.sourceViewId) === sourceViewId && StrCast(p.targetViewId) === targetViewId;
+        });
+        return index > -1 ? LinkManager.Instance.linkProxies[index] : undefined;
+    }
+
 }
\ No newline at end of file
-- 
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