From e59299cfc5285ca2230175545861b145cf5fe636 Mon Sep 17 00:00:00 2001
From: Jamie Wong <jamie.lf.wong@gmail.com>
Date: Fri, 29 Dec 2017 22:22:58 -0500
Subject: [PATCH] Grab cursor for drag-panning

---
 flamechart-view.tsx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/flamechart-view.tsx b/flamechart-view.tsx
index 9ff57b1..c76b91a 100644
--- a/flamechart-view.tsx
+++ b/flamechart-view.tsx
@@ -432,6 +432,8 @@ export class FlamechartPanZoomView extends ReloadableComponent<FlamechartPanZoom
   private lastDragPos: Vec2 | null = null
 
   private onMouseDown = (ev: MouseEvent) => {
+    document.body.style.cursor = 'grabbing'
+    document.body.style.cursor = '-webkit-grabbing'
     this.lastDragPos = new Vec2(ev.offsetX, ev.offsetY)
   }
 
@@ -507,6 +509,7 @@ export class FlamechartPanZoomView extends ReloadableComponent<FlamechartPanZoom
   }
 
   private onWindowMouseUp = (ev: MouseEvent) => {
+    document.body.style.cursor = 'default'
     this.lastDragPos = null
   }