From 9bf6bd83bdb136e4478c59ce69ee44fc5d0d8352 Mon Sep 17 00:00:00 2001
From: kimdahey <claire_kim1@brown.edu>
Date: Wed, 29 Jan 2020 16:56:33 -0500
Subject: fixes

---
 src/client/util/InteractionUtils.ts | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'src/client/util')

diff --git a/src/client/util/InteractionUtils.ts b/src/client/util/InteractionUtils.ts
index da42bdc93..8e1beecb7 100644
--- a/src/client/util/InteractionUtils.ts
+++ b/src/client/util/InteractionUtils.ts
@@ -23,7 +23,7 @@ export namespace InteractionUtils {
 
     export function MakeMultiTouchTarget(
         element: HTMLElement,
-        startFunc: (e: Event, me: MultiTouchEvent<React.TouchEvent>) => void,
+        startFunc: (e: Event, me: MultiTouchEvent<React.TouchEvent>) => void
     ): MultiTouchEventDisposer {
         const onMultiTouchStartHandler = (e: Event) => startFunc(e, (e as CustomEvent<MultiTouchEvent<React.TouchEvent>>).detail);
         // const onMultiTouchMoveHandler = moveFunc ? (e: Event) => moveFunc(e, (e as CustomEvent<MultiTouchEvent<TouchEvent>>).detail) : undefined;
@@ -46,6 +46,17 @@ export namespace InteractionUtils {
         };
     }
 
+    export function MakeHoldTouchTarget(
+        element: HTMLElement,
+        func: (e: Event, me: MultiTouchEvent<React.TouchEvent>) => void
+    ): MultiTouchEventDisposer {
+        const handler = (e: Event) => func(e, (e as CustomEvent<MultiTouchEvent<React.TouchEvent>>).detail);
+        element.addEventListener("dashOnTouchHoldStart", handler);
+        return () => {
+            element.removeEventListener("dashOnTouchHoldStart", handler);
+        };
+    }
+
     export function GetMyTargetTouches(mte: InteractionUtils.MultiTouchEvent<React.TouchEvent | TouchEvent>, prevPoints: Map<number, React.Touch>, ignorePen: boolean): React.Touch[] {
         const myTouches = new Array<React.Touch>();
         for (const pt of mte.touches) {
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