Merge pull request d3#205 from d3/two

Update d3-selection

package.json

@@ -1,6 +1,9 @@
 {
   "name": "d3-zoom",
-  "version": "1.8.3",
+  "version": "2.0.0-rc.1",
+  "publishConfig": {
+    "tag": "next"
+  },
   "description": "Pan and zoom SVG, HTML or Canvas using mouse or touch input.",
   "keywords": [
     "d3",
@@ -34,14 +37,15 @@
     "postpublish": "git push && git push --tags && cd ../d3.github.com && git pull && cp ../${npm_package_name}/dist/${npm_package_name}.js ${npm_package_name}.v${npm_package_version%%.*}.js && cp ../${npm_package_name}/dist/${npm_package_name}.min.js ${npm_package_name}.v${npm_package_version%%.*}.min.js && git add ${npm_package_name}.v${npm_package_version%%.*}.js ${npm_package_name}.v${npm_package_version%%.*}.min.js && git commit -m \"${npm_package_name} ${npm_package_version}\" && git push && cd - && zip -j dist/${npm_package_name}.zip -- LICENSE README.md dist/${npm_package_name}.js dist/${npm_package_name}.min.js"
   },
   "dependencies": {
-    "d3-dispatch": "1",
-    "d3-drag": "1",
-    "d3-interpolate": "1",
-    "d3-selection": "1",
-    "d3-transition": "1"
+    "d3-dispatch": ">=2.0.0-rc.1",
+    "d3-drag": ">=2.0.0-rc.1",
+    "d3-interpolate": ">=2.0.0-rc.1",
+    "d3-selection": ">=2.0.0-rc.3",
+    "d3-transition": ">=2.0.0-rc.3"
   },
   "devDependencies": {
     "eslint": "6",
+    "jsdom": "^16.2.2",
     "rollup": "1",
     "rollup-plugin-terser": "5",
     "tape": "4"

src/constant.js

@@ -1,5 +1 @@
-export default function(x) {
-  return function() {
-    return x;
-  };
-}
+export default x => () => x;

src/event.js

@@ -1,5 +1,14 @@
-export default function ZoomEvent(target, type, transform) {
-  this.target = target;
-  this.type = type;
-  this.transform = transform;
+export default function ZoomEvent(type, {
+  sourceEvent,
+  target,
+  transform,
+  dispatch
+}) {
+  Object.defineProperties(this, {
+    type: {value: type, enumerable: true, configurable: true},
+    sourceEvent: {value: sourceEvent, enumerable: true, configurable: true},
+    target: {value: target, enumerable: true, configurable: true},
+    transform: {value: transform, enumerable: true, configurable: true},
+    _: {value: dispatch}
+  });
 }

src/noevent.js

@@ -1,10 +1,8 @@
-import {event} from "d3-selection";
-
-export function nopropagation() {
+export function nopropagation(event) {
   event.stopImmediatePropagation();
 }
 
-export default function() {
+export default function(event) {
   event.preventDefault();
   event.stopImmediatePropagation();
 }