Adopt builtin components

addon/components/_has-dom.ts

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+// check if window exists and actually is the global
+export default typeof self === 'object' &&
+  self !== null &&
+  (self as Window['self']).Object === Object &&
+  typeof Window !== 'undefined' &&
+  self.constructor === Window &&
+  typeof document === 'object' &&
+  document !== null &&
+  self.document === document &&
+  typeof location === 'object' &&
+  location !== null &&
+  self.location === location &&
+  typeof history === 'object' &&
+  history !== null &&
+  self.history === history &&
+  typeof navigator === 'object' &&
+  navigator !== null &&
+  self.navigator === navigator &&
+  typeof navigator.userAgent === 'string';

addon/components/_internals.ts

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+function intern(str: string): string {
+  let obj = {};
+  //@ts-ignore
+  obj[str] = 1;
+  for (let key in obj) {
+    if (key === str) {
+      return key;
+    }
+  }
+  return str;
+}
+
+const GUID_KEY = intern(`__ember${Date.now()}`);
+
+// `enumerableSymbol` copied from https://github.com/emberjs/ember.js/blob/master/packages/@ember/-internals/utils/lib/symbol.ts
+// for not exported code these legacy components are dependant on.
+
+// Some legacy symbols still need to be enumerable for a variety of reasons.
+// This code exists for that, and as a fallback in IE11. In general, prefer
+// `symbol` below when creating a new symbol.
+function enumerableSymbol(debugName: string): string {
+  let id = GUID_KEY + Math.floor(Math.random() * Date.now());
+  let symbol = intern(`__${debugName}${id}__`);
+  return symbol;
+}
+
+export const HAS_BLOCK = enumerableSymbol('HAS_BLOCK');
+
+export function isSimpleClick(event: MouseEvent): boolean {
+  let modifier =
+    event.shiftKey || event.metaKey || event.altKey || event.ctrlKey;
+  let secondaryClick = event.which > 1; // IE9 may return undefined
+
+  return !modifier && !secondaryClick;
+}
+
+// export interface GlobalContext {
+//   imports: object;
+//   exports: object;
+//   lookup: object;
+// }
+
+// /* globals global, window, self */
+// declare const mainContext: object | undefined;
+
+// // from lodash to catch fake globals
+// function checkGlobal(value: any | null | undefined): value is object {
+//   return value && value.Object === Object ? value : undefined;
+// }
+
+// // element ids can ruin global miss checks
+// function checkElementIdShadowing(value: any | null | undefined) {
+//   return value && value.nodeType === undefined ? value : undefined;
+// }
+
+// // export real global
+// export default checkGlobal(checkElementIdShadowing(typeof global === 'object' && global)) ||
+//   checkGlobal(typeof self === 'object' && self) ||
+//   checkGlobal(typeof window === 'object' && window) ||
+//   (typeof mainContext !== 'undefined' && mainContext) || // set before strict mode in Ember loader/wrapper
+//   new Function('return this')(); // eval outside of strict mode
+
+// // legacy imports/exports/lookup stuff (should we keep this??)
+// export const context = (function (
+//   global: object,
+//   Ember: Partial<GlobalContext> | undefined
+// ): GlobalContext {
+//   return Ember === undefined
+//     ? { imports: global, exports: global, lookup: global }
+//     : {
+//         // import jQuery
+//         imports: Ember.imports || global,
+//         // export Ember
+//         exports: Ember.exports || global,
+//         // search for Namespaces
+//         lookup: Ember.lookup || global,
+//       };
+// })(global, global.Ember);

addon/components/checkbox.hbs

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+{{yield}}

addon/components/checkbox.js

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+//@ts-check
+/* eslint-disable ember/no-component-lifecycle-hooks */
+/* eslint-disable ember/require-tagless-components */
+/* eslint-disable ember/no-classic-classes */
+/* eslint-disable ember/no-classic-components */
+import { set } from '@ember/object';
+import { assert } from '@ember/debug';
+import { DEBUG } from '@glimmer/env';
+import EmberComponent from '@ember/component';
+
+/**
+@module @ember/component
+*/
+
+/**
+  The internal class used to create text inputs when the `{{input}}`
+  helper is used with `type` of `checkbox`.
+
+  See [Ember.Templates.helpers.input](/ember/release/classes/Ember.Templates.helpers/methods/input?anchor=input)  for usage details.
+
+  ## Direct manipulation of `checked`
+
+  The `checked` attribute of an `Checkbox` object should always be set
+  through the Ember object or by interacting with its rendered element
+  representation via the mouse, keyboard, or touch. Updating the value of the
+  checkbox via jQuery will result in the checked value of the object and its
+  element losing synchronization.
+
+  ## Layout and LayoutName properties
+
+  Because HTML `input` elements are self closing `layout` and `layoutName`
+  properties will not be applied.
+
+  @class Checkbox
+  @public
+*/
+const Checkbox = EmberComponent.extend({
+  /**
+    By default, this component will add the `ember-checkbox` class to the component's element.
+
+    @property classNames
+    @type Array | String
+    @default ['ember-checkbox']
+    @public
+   */
+  classNames: ['ember-checkbox'],
+
+  tagName: 'input',
+
+  /**
+    By default this component will forward a number of arguments to attributes on the the
+    component's element:
+
+    * indeterminate
+    * disabled
+    * tabindex
+    * name
+    * autofocus
+    * required
+    * form
+
+    When invoked with curly braces, this is the exhaustive list of HTML attributes you can
+    customize (i.e. `{{input type="checkbox" disabled=true}}`).
+
+    When invoked with angle bracket invocation, this list is irrelevant, because you can use HTML
+    attribute syntax to customize the element (i.e.
+    `<Input @type="checkbox" disabled data-custom="custom value" />`). However, `@type` and
+    `@checked` must be passed as named arguments, not attributes.
+
+    @property attributeBindings
+    @type Array | String
+    @default ['type', 'checked', 'indeterminate', 'disabled', 'tabindex', 'name', 'autofocus', 'required', 'form']
+    @public
+  */
+  attributeBindings: [
+    'type',
+    'checked',
+    'indeterminate',
+    'disabled',
+    'tabindex',
+    'name',
+    'autofocus',
+    'required',
+    'form',
+  ],
+
+  /**
+    Sets the `type` attribute of the `Checkbox`'s element
+
+    @property disabled
+    @default false
+    @private
+   */
+  type: 'checkbox',
+
+  /**
+    Sets the `disabled` attribute of the `Checkbox`'s element
+
+    @property disabled
+    @default false
+    @public
+   */
+  disabled: false,
+
+  /**
+    Corresponds to the `indeterminate` property of the `Checkbox`'s element
+
+    @property disabled
+    @default false
+    @public
+   */
+  indeterminate: false,
+
+  /**
+    Whenever the checkbox is inserted into the DOM, perform initialization steps, which include
+    setting the indeterminate property if needed.
+
+    If this method is overridden, `super` must be called.
+
+    @method
+    @public
+   */
+  didInsertElement() {
+    this._super(...arguments);
+    this.element.indeterminate = Boolean(this.indeterminate);
+  },
+
+  /**
+    Whenever the `change` event is fired on the checkbox, update its `checked` property to reflect
+    whether the checkbox is checked.
+
+    If this method is overridden, `super` must be called.
+
+    @method
+    @public
+   */
+  change() {
+    set(this, 'checked', this.element.checked);
+  },
+});
+
+if (DEBUG) {
+  const UNSET = {};
+
+  Checkbox.reopen({
+    value: UNSET,
+
+    didReceiveAttrs() {
+      this._super();
+
+      assert(
+        "`<Input @type='checkbox' @value={{...}} />` is not supported; " +
+          "please use `<Input @type='checkbox' @checked={{...}} />` instead.",
+        !(this.type === 'checkbox' && this.value !== UNSET)
+      );
+    },
+  });
+}
+
+Checkbox.toString = () => '@ember/component/checkbox';
+
+export default Checkbox;

addon/components/link-to.hbs

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+{{~#if (has-block)~}}
+  {{yield}}
+{{~else~}}
+  {{this.linkTitle}}
+{{~/if~}}