Passive listener & install/postinstall script

build.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env sh
+if [ -f is-installed ]; then
+  echo "Skipping installation hook."
+  rm -f is-installed
+else
+  echo > is-installed
+  npm install
+  npm run build
+  rm -rf node_modules package-lock.json
+fi

package.json

@@ -8,18 +8,17 @@
     "build": "rollup -c",
     "build:examples": "cd ./examples && npm install && npm run build",
     "build:publish:examples": "npm run build:examples && rimraf examples/node_modules && gh-pages -d examples",
-    "clean": "rimraf lib es",
+    "clean": "rm -rf lib es",
     "format": "prettier --write '{src,__{tests,mocks}__}/**/*.js'",
     "lint": "eslint .",
-    "prebuild": "npm run clean",
-    "prepare": "npm run build",
     "pretest": "npm run lint",
     "size": "size-limit",
     "start:examples": "cd ./examples && npm install && npm run start:dev",
     "test": "npm run test:unit && npm run dtslint && npm run build && npm run size",
     "test:unit": "jest",
     "test:cover": "jest --coverage",
-    "dtslint": "dtslint types"
+    "dtslint": "dtslint types",
+    "install": "./build.sh"
   },
   "size-limit": [
     {
@@ -57,12 +56,6 @@
     "url": "https://github.com/FormidableLabs/react-swipeable/issues"
   },
   "homepage": "https://github.com/FormidableLabs/react-swipeable",
-  "files": [
-    "lib",
-    "es",
-    "src",
-    "types/index.d.ts"
-  ],
   "license": "MIT",
   "types": "types",
   "devDependencies": {

src/index.js

@@ -139,7 +139,7 @@ function getHandlers(set, handlerProps) {
     if (el && el.addEventListener) {
       // attach touch event listeners and handlers
       const tls = [[touchStart, onStart], [touchMove, onMove], [touchEnd, onEnd]]
-      tls.forEach(([e, h]) => el.addEventListener(e, h))
+      tls.forEach(([e, h]) => el.addEventListener(e, h, { passive: true }))
       // return properly scoped cleanup method for removing listeners
       return () => tls.forEach(([e, h]) => el.removeEventListener(e, h))
     }