Remove internal jQuery usage

packages/@ember/-internals/environment/lib/env.ts

@@ -128,20 +128,6 @@ export const ENV = {
   */
   _DEBUG_RENDER_TREE: DEBUG,
 
-  /**
-    Whether the app is using jQuery. See RFC #294.
-
-    This is not intended to be set directly, as the implementation may change in
-    the future. Use `@ember/optional-features` instead.
-
-    @property _JQUERY_INTEGRATION
-    @for EmberENV
-    @type Boolean
-    @default true
-    @private
-  */
-  _JQUERY_INTEGRATION: true,
-
   /**
     Whether the app defaults to using async observers.
 

packages/@ember/-internals/views/index.d.ts

@@ -2,8 +2,6 @@ import { Option } from '@glimmer/interfaces';
 import { SimpleElement } from '@simple-dom/interface';
 import { Object as EmberObject } from '@ember/-internals/runtime';
 
-export { jQuery, jQueryDisabled } from './lib/system/jquery';
-
 export const ActionSupport: any;
 export const ChildViewsSupport: any;
 export const ClassNamesSupport: any;

packages/@ember/-internals/views/index.js

@@ -1,4 +1,3 @@
-export { jQuery, jQueryDisabled } from './lib/system/jquery';
 export {
   addChildView,
   isSimpleClick,

packages/@ember/application/instance.js

@@ -4,7 +4,6 @@
 
 import { get, set, computed } from '@ember/-internals/metal';
 import * as environment from '@ember/-internals/browser-environment';
-import { jQuery } from '@ember/-internals/views';
 import EngineInstance from '@ember/engine/instance';
 import { renderSettled } from '@ember/-internals/glimmer';
 
@@ -57,8 +56,7 @@ const ApplicationInstance = EngineInstance.extend({
 
   /**
     The root DOM element of the Application as an element or a
-    [jQuery-compatible selector
-    string](http://api.jquery.com/category/selectors/).
+    CSS selector.
 
     @private
     @property {String|DOMElement} rootElement
@@ -328,20 +326,6 @@ ApplicationInstance.reopenClass({
 */
 class BootOptions {
   constructor(options = {}) {
-    /**
-      Provide a specific instance of jQuery. This is useful in conjunction with
-      the `document` option, as it allows you to use a copy of `jQuery` that is
-      appropriately bound to the foreign `document` (e.g. a jsdom).
-
-      This is highly experimental and support very incomplete at the moment.
-
-      @property jQuery
-      @type Object
-      @default auto-detected
-      @private
-    */
-    this.jQuery = jQuery; // This default is overridable below
-
     /**
       Interactive mode: whether we need to set up event delegation and invoke
       lifecycle callbacks on Components.
@@ -392,7 +376,6 @@ class BootOptions {
     }
 
     if (!this.isBrowser) {
-      this.jQuery = null;
       this.isInteractive = false;
       this.location = 'none';
     }
@@ -416,7 +399,6 @@ class BootOptions {
     }
 
     if (!this.shouldRender) {
-      this.jQuery = null;
       this.isInteractive = false;
     }
 
@@ -486,10 +468,6 @@ class BootOptions {
       this.location = options.location;
     }
 
-    if (options.jQuery !== undefined) {
-      this.jQuery = options.jQuery;
-    }
-
     if (options.isInteractive !== undefined) {
       this.isInteractive = Boolean(options.isInteractive);
     }

packages/@ember/application/lib/application.js

@@ -11,7 +11,7 @@ import { join, once, run, schedule } from '@ember/runloop';
 import { libraries } from '@ember/-internals/metal';
 import { _loaded, runLoadHooks } from './lazy_load';
 import { RSVP } from '@ember/-internals/runtime';
-import { EventDispatcher, jQuery, jQueryDisabled } from '@ember/-internals/views';
+import { EventDispatcher } from '@ember/-internals/views';
 import {
   Route,
   Router,
@@ -26,9 +26,6 @@ import Engine from '@ember/engine';
 import { privatize as P } from '@ember/-internals/container';
 import { setupApplicationRegistry } from '@ember/-internals/glimmer';
 import { RouterService } from '@ember/-internals/routing';
-import { JQUERY_INTEGRATION } from '@ember/deprecated-features';
-
-let librariesRegistered = false;
 
 /**
   An instance of `Application` is the starting point for every Ember
@@ -353,12 +350,6 @@ const Application = Engine.extend({
     // eslint-disable-line no-unused-vars
     this._super(...arguments);
 
-    if (!this.$) {
-      this.$ = jQuery;
-    }
-
-    registerLibraries();
-
     if (DEBUG) {
       if (ENV.LOG_VERSION) {
         // we only need to see this once per Application#init
@@ -1170,14 +1161,4 @@ function commonSetupRegistry(registry) {
   registry.register('service:router', RouterService);
 }
 
-function registerLibraries() {
-  if (!librariesRegistered) {
-    librariesRegistered = true;
-
-    if (JQUERY_INTEGRATION && hasDOM && !jQueryDisabled) {
-      libraries.registerCoreLibrary('jQuery', jQuery().jquery);
-    }
-  }
-}
-
 export default Application;

packages/@ember/application/tests/application_test.js

@@ -4,7 +4,6 @@ import { ENV } from '@ember/-internals/environment';
 import { libraries } from '@ember/-internals/metal';
 import { getDebugFunction, setDebugFunction } from '@ember/debug';
 import { Router, NoneLocation, Route as EmberRoute } from '@ember/-internals/routing';
-import { jQueryDisabled, jQuery } from '@ember/-internals/views';
 import { _loaded } from '@ember/application';
 import Controller from '@ember/controller';
 import { Object as EmberObject } from '@ember/-internals/runtime';
@@ -279,12 +278,7 @@ moduleFor(
       runTask(() => this.createApplication());
 
       assert.equal(messages[1], 'Ember  : ' + VERSION);
-      if (jQueryDisabled) {
-        assert.equal(messages[2], 'my-lib : ' + '2.0.0a');
-      } else {
-        assert.equal(messages[2], 'jQuery : ' + jQuery().jquery);
-        assert.equal(messages[3], 'my-lib : ' + '2.0.0a');
-      }
+      assert.equal(messages[2], 'my-lib : ' + '2.0.0a');
 
       libraries.deRegister('my-lib');
     }

packages/@ember/deprecated-features/index.ts

@@ -4,7 +4,6 @@
 // not the version that the feature will be removed.
 
 export const ROUTER_EVENTS = !!'4.0.0';
-export const JQUERY_INTEGRATION = !!'3.9.0';
 export const APP_CTRL_ROUTER_PROPS = !!'3.10.0-beta.1';
 export const MOUSE_ENTER_LEAVE_MOVE_EVENTS = !!'3.13.0-beta.1';
 export const ASSIGN = !!'4.0.0-beta.1';

packages/ember/tests/reexports_test.js

@@ -3,7 +3,6 @@ import require from 'require';
 import { EMBER_MODERNIZED_BUILT_IN_COMPONENTS, FEATURES } from '@ember/canary-features';
 import { AbstractTestCase, confirmExport, moduleFor } from 'internal-test-helpers';
 import { DEBUG } from '@glimmer/env';
-import { ENV } from '@ember/-internals/environment';
 
 moduleFor(
   'ember reexports',
@@ -443,9 +442,6 @@ let allExports = [
   // backburner
   ['_Backburner', 'backburner', 'default'],
 
-  // jquery
-  ENV._JQUERY_INTEGRATION ? [null, 'jquery', 'default'] : null,
-
   // rsvp
   [null, 'rsvp', 'default'],
   [null, 'rsvp', 'Promise'],

tests/docs/expected.js

@@ -11,7 +11,6 @@ module.exports = {
     '_APPLICATION_TEMPLATE_WRAPPER',
     '_DISABLE_PROPERTY_FALLBACK_DEPRECATION',
     '_DEBUG_RENDER_TREE',
-    '_JQUERY_INTEGRATION',
     '_DEFAULT_ASYNC_OBSERVERS',
     '_RERENDER_LOOP_LIMIT',
     '_TEMPLATE_ONLY_GLIMMER_COMPONENTS',
@@ -326,7 +325,6 @@ module.exports = {
     'isRejected',
     'isSettled',
     'join',
-    'jQuery',
     'keyDown',
     'keyPress',
     'keyUp',