From 3ff149e05a76fa0a0ace32a1b0c9876c4850aa2a Mon Sep 17 00:00:00 2001
From: bob <bcz@cs.brown.edu>
Date: Tue, 26 Feb 2019 12:32:52 -0500
Subject: extended CollectionTreeView to support drag and drop.  updated
 CollectionSchemaView's drag drop

---
 src/client/util/DragManager.ts | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

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

diff --git a/src/client/util/DragManager.ts b/src/client/util/DragManager.ts
index aab23f91c..8adadee0f 100644
--- a/src/client/util/DragManager.ts
+++ b/src/client/util/DragManager.ts
@@ -1,4 +1,37 @@
 import { DocumentDecorations } from "../views/DocumentDecorations";
+import { CollectionDockingView } from "../views/collections/CollectionDockingView";
+import { Document } from "../../fields/Document"
+import { action } from "mobx";
+
+export function setupDrag(_reference: React.RefObject<HTMLDivElement>, _dragDocument: Document) {
+    let onRowMove = action((e: PointerEvent): void => {
+        e.stopPropagation();
+        e.preventDefault();
+
+        document.removeEventListener("pointermove", onRowMove);
+        document.removeEventListener('pointerup', onRowUp);
+        DragManager.StartDrag(_reference.current!, { document: _dragDocument });
+    });
+    let onRowUp = action((e: PointerEvent): void => {
+        document.removeEventListener("pointermove", onRowMove);
+        document.removeEventListener('pointerup', onRowUp);
+    });
+    let onItemDown = (e: React.PointerEvent) => {
+        // if (this.props.isSelected() || this.props.isTopMost) {
+        if (e.button == 0) {
+            e.stopPropagation();
+            e.preventDefault();
+            if (e.shiftKey) {
+                CollectionDockingView.Instance.StartOtherDrag(_reference.current!, _dragDocument);
+            } else {
+                document.addEventListener("pointermove", onRowMove);
+                document.addEventListener('pointerup', onRowUp);
+            }
+        }
+        //}
+    }
+    return onItemDown;
+}
 
 export namespace DragManager {
     export function Root() {
-- 
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