Merge pull request #14 from multiformats/webworker

feat: add support for webworkers

Author: dignifiedquire

package.json

@@ -7,14 +7,14 @@
     "./src/crypto-sha1-2.js": "./src/crypto-sha1-2-browser.js"
   },
   "scripts": {
-    "test": "aegir-test",
-    "test:browser": "aegir-test browser",
+    "test": "aegir-test --webworker",
+    "test:browser": "aegir-test browser --webworker",
     "test:node": "aegir-test node",
     "lint": "aegir-lint",
     "docs": "aegir-docs",
-    "release": "aegir-release --docs",
-    "release-minor": "aegir-release minor --docs",
-    "release-major": "aegir-release major --docs",
+    "release": "aegir-release --docs --webworker",
+    "release-minor": "aegir-release minor --docs --webworker",
+    "release-major": "aegir-release major --docs --webworker",
     "build": "aegir-build",
     "coverage": "aegir-coverage",
     "coverage-publish": "aegir-coverage publish",
@@ -38,13 +38,13 @@
   },
   "dependencies": {
     "async": "^2.1.4",
-    "js-sha3": "^0.5.5",
-    "multihashes": "^0.3.0",
+    "js-sha3": "^0.5.7",
+    "multihashes": "^0.3.2",
     "nodeify": "^1.0.0"
   },
   "devDependencies": {
-    "aegir": "^9.3.0",
-    "benchmark": "^2.1.2",
+    "aegir": "^9.4.0",
+    "benchmark": "^2.1.3",
     "chai": "^3.5.0",
     "pre-commit": "^1.2.2"
   },

src/crypto-browser.js

@@ -1,18 +1,27 @@
+/* global self */
 'use strict'
 
 const nodeify = require('nodeify')
 
 const webCrypto = getWebCrypto()
 
 function getWebCrypto () {
+  let globalContext
+
   if (typeof window !== 'undefined') {
-    if (window.crypto) {
-      return window.crypto.subtle || window.crypto.webkitSubtle
-    }
+    globalContext = window
+  } else if (typeof self !== 'undefined') {
+    globalContext = self
+  } else {
+    return
+  }
 
-    if (window.msCrypto) {
-      return window.msCrypto.subtle
-    }
+  if (globalContext.crypto) {
+    return globalContext.crypto.subtle || globalContext.crypto.webkitSubtle
+  }
+
+  if (globalContext.msCrypto) {
+    return globalContext.msCrypto.subtle
   }
 }