Remove dependencies

package.json

@@ -48,8 +48,5 @@
     "karma-mocha-reporter": "^2.2.5",
     "mocha": "^6.2.2"
   },
-  "dependencies": {
-    "form-data-entries": "^1.0.4",
-    "selector-set": "^1.1.5"
-  }
+  "dependencies": {}
 }

src/index.js

@@ -1,8 +1,5 @@
 /* @flow strict */
 
-import SelectorSet from 'selector-set'
-import formDataEntries from 'form-data-entries'
-
 // Parse HTML text into document fragment.
 function parseHTML(document: Document, html: string): DocumentFragment {
   const template = document.createElement('template')
@@ -12,7 +9,7 @@ function parseHTML(document: Document, html: string): DocumentFragment {
 
 function serialize(form: HTMLFormElement): string {
   const params = new URLSearchParams()
-  const entries = 'entries' in FormData.prototype ? new FormData(form).entries() : formDataEntries(form)
+  const entries = new FormData(form).entries()
   for (const [name, value] of [...entries]) {
     params.append(name, value.toString())
   }
@@ -65,9 +62,9 @@ type Kicker = {
   html: () => Promise<SimpleResponse>
 }
 
-export type RemoteFormHandler = (form: HTMLFormElement, kicker: Kicker, req: SimpleRequest) => void | Promise<void>
+export type RemoteFormHandler = (form: HTMLFormElement, kicker: Kicker, req: SimpleRequest) => void
 
-let selectorSet: ?SelectorSet<RemoteFormHandler>
+let formHandlers: Map<string, RemoteFormHandler[]>
 
 const afterHandlers = []
 const beforeHandlers = []
@@ -81,26 +78,39 @@ export function beforeRemote(fn: (form: HTMLFormElement) => mixed) {
 }
 
 export function remoteForm(selector: string, fn: RemoteFormHandler) {
-  if (!selectorSet) {
-    selectorSet = new SelectorSet()
+  if (!formHandlers) {
+    formHandlers = new Map<string, RemoteFormHandler[]>()
     document.addEventListener('submit', handleSubmit)
   }
-  selectorSet.add(selector, fn)
+  const handlers = formHandlers.get(selector) || []
+  formHandlers.set(selector, [...handlers, fn])
 }
 
 export function remoteUninstall(selector: string, fn: RemoteFormHandler) {
-  if (selectorSet) {
-    selectorSet.remove(selector, fn)
+  if (formHandlers) {
+    const handlers = formHandlers.get(selector) || []
+    formHandlers.set(selector, handlers.filter(x => x !== fn))
+  }
+}
+
+function getMatches(el: HTMLElement): RemoteFormHandler[] {
+  const results = []
+  for (const selector of formHandlers.keys()) {
+    if (el.matches(selector)) {
+      const handlers = formHandlers.get(selector) || []
+      results.push(...handlers)
+    }
   }
+  return results
 }
 
 function handleSubmit(event: Event) {
   if (!(event.target instanceof HTMLFormElement)) {
     return
   }
   const form = event.target
-  const matches = selectorSet && selectorSet.matches(form)
-  if (!matches || matches.length === 0) {
+  const matches = getMatches(form)
+  if (matches.length === 0) {
     return
   }
 
@@ -143,7 +153,7 @@ function handleSubmit(event: Event) {
 // Process each handler sequentially until it either completes or calls the
 // kicker function.
 async function processHandlers(
-  matches: Array<*>,
+  matches: RemoteFormHandler[],
   form: HTMLFormElement,
   req: SimpleRequest,
   kickerPromise: Promise<SimpleResponse>
@@ -167,7 +177,7 @@ async function processHandlers(
         return kick()
       }
     }
-    await Promise.race([kickerCalled, match.data.call(null, form, kicker, req)])
+    await Promise.race([kickerCalled, match(form, kicker, req)])
   }
   return kickerWasCalled
 }

test/karma.config.js

@@ -22,13 +22,9 @@ function checker(request, response, next) {
 
 module.exports = function(config) {
   config.set({
+    basePath: '..',
     frameworks: ['mocha', 'chai'],
-    files: [
-      '../node_modules/form-data-entries/index.umd.js',
-      '../node_modules/selector-set/selector-set.js',
-      '../dist/index.umd.js',
-      'test.js'
-    ],
+    files: [{pattern: 'dist/index.esm.js', type: 'module'}, {pattern: 'test/test.js', type: 'module'}],
     reporters: ['mocha'],
     port: 9876,
     colors: true,

test/test.js

@@ -1,4 +1,4 @@
-const {remoteForm: _remoteForm, remoteUninstall} = window.remoteForm
+import {remoteForm as _remoteForm, remoteUninstall} from '../dist/index.esm.js'
 
 describe('remoteForm', function() {
   let htmlForm
@@ -63,17 +63,21 @@ describe('remoteForm', function() {
   })
 
   it('chained handlers', function(done) {
-    let previousCallbackCalled = false
+    let callbacksCalled = 0
+
     remoteForm('.remote-widget', async function() {
-      await new Promise(resolve => setTimeout(resolve, 10))
-      previousCallbackCalled = true
+      callbacksCalled++
+
+      if (callbacksCalled === 2) {
+        done()
+      }
     })
 
     remoteForm('.my-remote-form', async function() {
-      if (previousCallbackCalled) {
+      callbacksCalled++
+
+      if (callbacksCalled === 2) {
         done()
-      } else {
-        done(new Error('The previous remote form callback was not called'))
       }
     })