feat: change output file to cjs format, upgrade to babel7

.babelrc

@@ -1,11 +1,10 @@
 {
   "env": {
     "test": {
-      "presets": [["env", {"loose": true}], "stage-1"]
+      "presets": [["@babel/preset-env", {"loose": true}]]
     },
     "development": {
-      "presets": [["env", {"loose": true, "modules": false}], "stage-1"],
-      "plugins": ["external-helpers"]
+      "presets": [["@babel/preset-env", {"loose": true, "modules": false}]]
     }
   }
 }

package.json

@@ -19,20 +19,20 @@
   "license": "MIT",
   "author": "Chunpeng Huo",
   "devDependencies": {
-    "babel-eslint": "^8.2.6",
-    "babel-plugin-external-helpers": "^6.22.0",
-    "babel-preset-env": "^1.7.0",
-    "babel-preset-stage-1": "^6.24.1",
-    "babel-register": "^6.26.0",
-    "babelify": "^8.0.0",
-    "browserify": "^16.2.2",
-    "eslint": "^5.4.0",
+    "@babel/cli": "^7.1.2",
+    "@babel/core": "^7.1.2",
+    "@babel/preset-env": "^7.1.0",
+    "babel-eslint": "^10.0.1",
+    "babelify": "^10.0.0",
+    "browserify": "^16.2.3",
+    "eslint": "^5.6.1",
     "jquery": "^3.3.1",
-    "rollup": "^0.64.1",
-    "rollup-plugin-babel": "^3.0.7",
-    "rollup-plugin-node-resolve": "^3.3.0",
-    "rollup-plugin-terser": "^1.0.1",
+    "rollup": "^0.66.2",
+    "rollup-plugin-babel": "^4.0.3",
+    "rollup-plugin-node-resolve": "^3.4.0",
+    "rollup-plugin-terser": "^3.0.0",
     "standard-changelog": "^2.0.1",
+    "tap-dot": "^2.0.0",
     "tape": "^4.9.1",
     "tape-run": "^4.0.0"
   },

rollup.config.js

@@ -3,14 +3,10 @@ import resolve from 'rollup-plugin-node-resolve';
 import {terser} from "rollup-plugin-terser";
 
 export default {
-  input: 'src/index.js',
+  input: 'src/dnd-service.js',
   output: {
-    format: 'umd',
-    name: 'BcxAureliaDnd',
-    file: 'dist/index.js',
-    globals: {
-      "aurelia-event-aggregator": "AureliaEventAggregator"
-    }
+    format: 'cjs',
+    file: 'dist/index.js'
   },
   external: ["aurelia-event-aggregator"],
   plugins: [

src/dnd-service.js

@@ -9,8 +9,6 @@ import {trPreview, liPreview, unknownTagPreview, defaultPreview} from './preview
 // DndService only works in browser.
 // code can be loaded in nodejs env, as long as you don't run it.
 // for aurelia component testing in nodejs, feed constructor with a mock DndService.
-//
-
 
 const doc = _global.document;
 const documentElement = doc && doc.documentElement;
@@ -187,7 +185,7 @@ function getCoord (coord, e) {
   return host[coord];
 }
 
-export class DndSource {
+class DndSource {
   constructor(delegate, options = {}) {
     if (!delegate) {
       throw new Error("Missing delegate for dnd source.");
@@ -232,7 +230,7 @@ export class DndSource {
   }
 }
 
-export class DndTarget {
+class DndTarget {
   constructor(delegate, options = {}) {
     if (!delegate) {
       throw new Error("Missing delegate for dnd target.");
@@ -291,16 +289,15 @@ function indexOfHandler(array, handler) {
   return -1; // nothing found
 }
 
-export class DndService {
-  static inject = [EventAggregator]
-
-  dndSources = []
-  dndTargets = []
-  previewDrawers = [];
+class DndService {
 
   constructor(ea) {
     this.ea = ea;
 
+    this.dndSources = [];
+    this.dndTargets = [];
+    this.previewDrawers = [];
+
     injectStyles();
     this.addPreviewDrawer(defaultPreview);
     this.addPreviewDrawer(unknownTagPreview);
@@ -744,3 +741,6 @@ export class DndService {
   }
 }
 
+DndService.inject = [EventAggregator];
+
+export {DndService};