1 files changed, 51 insertions, 0 deletions
diff --git a/src/client/views/nodes/LinkManager.tsx b/src/client/views/nodes/LinkManager.tsx
new file mode 100644
index 000000000..1064eaa22
--- /dev/null
+++ b/src/client/views/nodes/LinkManager.tsx
@@ -0,0 +1,51 @@
+import { observable, computed, action } from "mobx";
+import React = require("react");
+import { SelectionManager } from "../../util/SelectionManager";
+import { observer } from "mobx-react";
+import './LinkEditor.scss';
+import { props } from "bluebird";
+import { DocumentView } from "./DocumentView";
+import { link } from "fs";
+import { StrCast, Cast } from "../../../new_fields/Types";
+import { Doc } from "../../../new_fields/Doc";
+import { listSpec } from "../../../new_fields/Schema";
+
+
+export class LinkManager {
+    private static _instance: LinkManager;
+    public static get Instance(): LinkManager {
+        return this._instance || (this._instance = new this());
+    }
+    private constructor() {
+    }
+
+    @observable
+    public allLinks: Array<Doc> = [];
+
+    public findAllRelatedLinks(source: Doc): Array<Doc> {
+        let related = LinkManager.Instance.allLinks.filter(
+            link => Doc.AreProtosEqual(source, Cast(link.linkedFrom, Doc, new Doc)) || Doc.AreProtosEqual(source, Cast(link.linkedTo, Doc, new Doc)));
+        return related;
+    }
+
+    public findRelatedGroupedLinks(source: Doc): Map<string, Array<Doc>> {
+        let related = this.findAllRelatedLinks(source);
+        let categories = new Map();
+        related.forEach(link => {
+            let group = categories.get(link.linkTags);
+            if (group) group.push(link);
+            else group = [link];
+            categories.set(link.linkTags, group);
+        })
+        return categories;
+    }
+
+    public findOppositeAnchor(link: Doc, source: Doc): Doc {
+        if (Doc.AreProtosEqual(source, Cast(link.linkedFrom, Doc, new Doc))) {
+            return Cast(link.linkedTo, Doc, new Doc);
+        } else {
+            return Cast(link.linkedFrom, Doc, new Doc);
+        }
+    }
+
+}
+\ No newline at end of file