add loader

packages/@ember/debug/ember-inspector-support/adapters/basic.ts

@@ -59,7 +59,7 @@ export default class BasicAdapter extends BaseObject {
 
     @param {Function} callback
   */
-  onMessageReceived(callback: () => void) {
+  onMessageReceived(callback: (msg: any) => void) {
     this._messageCallbacks.push(callback);
   }
 

packages/@ember/debug/ember-inspector-support/adapters/bookmarklet.ts

@@ -1,6 +1,6 @@
 import BasicAdapter from './basic';
 
-export default class extends BasicAdapter {
+export default class BookmarkletAdapter extends BasicAdapter {
   init() {
     super.init();
     this._listen();

packages/@ember/debug/ember-inspector-support/adapters/chrome.ts

@@ -1,2 +1,2 @@
 import WebExtension from './web-extension';
-export default class extends WebExtension {}
+export default class ChromeAdapter extends WebExtension {}

packages/@ember/debug/ember-inspector-support/adapters/firefox.ts

@@ -1,7 +1,7 @@
 /* eslint no-empty:0 */
 import WebExtension from './web-extension';
 
-export default class extends WebExtension {
+export default class FirefoxAdapter extends WebExtension {
   debug(...args: unknown[]) {
     // WORKAROUND: temporarily workaround issues with firebug console object:
     // - https://github.com/tildeio/ember-extension/issues/94

packages/@ember/debug/ember-inspector-support/adapters/index.ts

@@ -0,0 +1,13 @@
+import { default as BasicAdapter } from './basic';
+import { default as BookmarkletAdapter } from './bookmarklet';
+import { default as ChromeAdapter } from './chrome';
+import { default as WebsocketAdapter } from './websocket';
+import { default as WebExtensionAdapter } from './web-extension';
+
+export default {
+  BasicAdapter,
+  BookmarkletAdapter,
+  ChromeAdapter,
+  WebExtensionAdapter,
+  WebsocketAdapter,
+};

packages/@ember/debug/ember-inspector-support/adapters/websocket.ts

@@ -2,7 +2,7 @@ import BasicAdapter from './basic';
 import { onReady } from '@ember/debug/ember-inspector-support/utils/on-ready';
 import { run } from '@ember/runloop';
 
-export default class extends BasicAdapter {
+export default class WebsocketAdapter extends BasicAdapter {
   sendMessage(options = {}) {
     this.socket.emit('emberInspectorMessage', options);
   }

packages/@ember/debug/ember-inspector-support/index.ts

@@ -0,0 +1,321 @@
+import { VERSION } from '@ember/version';
+import Adapters from './adapters';
+import MainModule from './main';
+import { guidFor } from '@ember/object/internals';
+import { A } from '@ember/array';
+import Namespace from '@ember/application/namespace';
+import Application from '@ember/application';
+import type ApplicationInstance from '@ember/application/instance';
+
+export function setupEmberInspectorSupport() {
+  window.addEventListener('ember-inspector-loaded' as any, (event: CustomEvent) => {
+    const adapter = event.detail.adapter;
+    const EMBER_VERSIONS_SUPPORTED = event.detail.EMBER_VERSIONS_SUPPORTED;
+    loadEmberDebug(adapter, EMBER_VERSIONS_SUPPORTED);
+  });
+
+  const e = new Event('ember-inspector-support-setup');
+  window.dispatchEvent(e);
+}
+
+function loadEmberDebug(
+  adapter: keyof typeof Adapters,
+  EMBER_VERSIONS_SUPPORTED: [string, string]
+) {
+  const w = window as any;
+  // global to prevent injection
+  if (w.NO_EMBER_DEBUG) {
+    return;
+  }
+
+  if (!versionTest(VERSION, EMBER_VERSIONS_SUPPORTED)) {
+    // Wrong inspector version. Redirect to the correct version.
+    sendVersionMiss();
+    return;
+  }
+
+  // prevent from injecting twice
+  if (!w.EmberInspector) {
+    w.EmberInspector = MainModule;
+    w.EmberInspector.Adapter = Adapters[adapter];
+
+    onApplicationStart(function appStarted(instance: ApplicationInstance) {
+      let app = instance.application;
+      if (!('__inspector__booted' in app)) {
+        // Watch for app reset/destroy
+        app.reopen({
+          reset: function (this: Application) {
+            (this as any).__inspector__booted = false;
+            this._super.apply(this, arguments as any);
+          },
+        });
+      }
+
+      if (instance && !('__inspector__booted' in instance)) {
+        instance.reopen({
+          // Clean up on instance destruction
+          willDestroy() {
+            if (w.EmberInspector.owner === instance) {
+              w.EmberInspector.destroyContainer();
+              w.EmberInspector.clear();
+            }
+            return (this as any)._super.apply(this, arguments);
+          },
+        });
+
+        if (!w.EmberInspector._application) {
+          setTimeout(() => bootEmberInspector(instance), 0);
+        }
+      }
+    });
+  }
+
+  function bootEmberInspector(appInstance: ApplicationInstance) {
+    (appInstance.application as any).__inspector__booted = true;
+    (appInstance as any).__inspector__booted = true;
+
+    // Boot the inspector (or re-boot if already booted, for example in tests)
+    w.EmberInspector._application = appInstance.application;
+    w.EmberInspector.owner = appInstance;
+    w.EmberInspector.start(true);
+  }
+
+  // There's probably a better way
+  // to determine when the application starts
+  // but this definitely works
+  function onApplicationStart(callback: Function) {
+    const adapterInstance = new Adapters[adapter]();
+
+    adapterInstance.onMessageReceived(function (message) {
+      if (message.type === 'app-picker-loaded') {
+        sendApps(adapterInstance, getApplications());
+      }
+
+      if (message.type === 'app-selected') {
+        let current = w.EmberInspector._application;
+        let selected = getApplications().find((app: any) => guidFor(app) === message.applicationId);
+
+        if (selected && current !== selected && selected.__deprecatedInstance__) {
+          bootEmberInspector(selected.__deprecatedInstance__);
+        }
+      }
+    });
+
+    let apps = getApplications();
+
+    sendApps(adapterInstance, apps);
+
+    function loadInstance(app: Application) {
+      const applicationInstances = app._applicationInstances && [...app._applicationInstances];
+      let instance = app.__deprecatedInstance__ || applicationInstances[0];
+      if (instance) {
+        // App started
+        setupInstanceInitializer(app, callback);
+        callback(instance);
+        return true;
+      }
+      return;
+    }
+
+    let app: Application;
+    for (let i = 0, l = apps.length; i < l; i++) {
+      app = apps[i];
+      // We check for the existance of an application instance because
+      // in Ember > 3 tests don't destroy the app when they're done but the app has no booted instances.
+      if (app._readinessDeferrals === 0) {
+        if (loadInstance(app)) {
+          break;
+        }
+      }
+
+      // app already run initializers, but no instance, use _bootPromise and didBecomeReady
+      if (app._bootPromise) {
+        app._bootPromise.then((app) => {
+          loadInstance(app);
+        });
+      }
+
+      app.reopen({
+        didBecomeReady(this: Application) {
+          this._super.apply(this, arguments as any);
+          setTimeout(() => loadInstance(app), 0);
+        },
+      });
+    }
+    Application.initializer({
+      name: 'ember-inspector-booted',
+      initialize: function (app) {
+        setupInstanceInitializer(app, callback);
+      },
+    });
+  }
+
+  function setupInstanceInitializer(app: Application, callback: Function) {
+    if (!(app as any).__inspector__setup) {
+      (app as any).__inspector__setup = true;
+
+      // We include the app's guid in the initializer name because in Ember versions < 3
+      // registering an instance initializer with the same name, even if on a different app,
+      // triggers an error because instance initializers seem to be global instead of per app.
+      app.instanceInitializer({
+        name: 'ember-inspector-app-instance-booted-' + guidFor(app),
+        initialize: function (instance) {
+          callback(instance);
+        },
+      });
+    }
+  }
+
+  /**
+   * Get all the Ember.Application instances from Ember.Namespace.NAMESPACES
+   * and add our own applicationId and applicationName to them
+   * @return {*}
+   */
+  function getApplications() {
+    let namespaces = A(Namespace.NAMESPACES);
+
+    let apps = namespaces.filter(function (namespace) {
+      return namespace instanceof Application;
+    });
+
+    return apps.map(function (app: any) {
+      // Add applicationId and applicationName to the app
+      let applicationId = guidFor(app);
+      let applicationName = app.name || app.modulePrefix || `(unknown app - ${applicationId})`;
+
+      Object.assign(app, {
+        applicationId,
+        applicationName,
+      });
+
+      return app;
+    });
+  }
+
+  let channel = new MessageChannel();
+  let port = channel.port1;
+  window.postMessage('debugger-client', '*', [channel.port2]);
+
+  let registeredMiss = false;
+
+  /**
+   * This function is called if the app's Ember version
+   * is not supported by this version of the inspector.
+   *
+   * It sends a message to the inspector app to redirect
+   * to an inspector version that supports this Ember version.
+   */
+  function sendVersionMiss() {
+    if (registeredMiss) {
+      return;
+    }
+
+    registeredMiss = true;
+
+    port.addEventListener('message', (message) => {
+      if (message.type === 'check-version') {
+        sendVersionMismatch();
+      }
+    });
+
+    sendVersionMismatch();
+
+    port.start();
+
+    function sendVersionMismatch() {
+      port.postMessage({
+        name: 'version-mismatch',
+        version: VERSION,
+        from: 'inspectedWindow',
+      });
+    }
+  }
+
+  function sendApps(adapter: any, apps: any[]) {
+    const serializedApps = apps.map((app) => {
+      return {
+        applicationName: app.applicationName,
+        applicationId: app.applicationId,
+      };
+    });
+
+    adapter.sendMessage({
+      type: 'apps-loaded',
+      apps: serializedApps,
+      from: 'inspectedWindow',
+    });
+  }
+
+  /**
+   * Checks if a version is between two different versions.
+   * version should be >= left side, < right side
+   *
+   * @param {String} version1
+   * @param {String} version2
+   * @return {Boolean}
+   */
+  function versionTest(version: string, between: [string, string]) {
+    let fromVersion = between[0];
+    let toVersion = between[1];
+
+    if (compareVersion(version, fromVersion) === -1) {
+      return false;
+    }
+    return !toVersion || compareVersion(version, toVersion) === -1;
+  }
+
+  /**
+   * Compares two Ember versions.
+   *
+   * Returns:
+   * `-1` if version1 < version
+   * 0 if version1 == version2
+   * 1 if version1 > version2
+   *
+   * @param {String} version1
+   * @param {String} version2
+   * @return {Boolean} result of the comparison
+   */
+  function compareVersion(version1: string, version2: string) {
+    let compared, i;
+    let version1Split = cleanupVersion(version1).split('.');
+    let version2Split = cleanupVersion(version2).split('.');
+    for (i = 0; i < 3; i++) {
+      compared = compare(Number(version1Split[i]), Number(version2Split[i]));
+      if (compared !== 0) {
+        return compared;
+      }
+    }
+    return 0;
+  }
+
+  /**
+   * Remove -alpha, -beta, etc from versions
+   *
+   * @param {String} version
+   * @return {String} The cleaned up version
+   */
+  function cleanupVersion(version: string) {
+    return version.replace(/-.*/g, '');
+  }
+
+  /**
+   * @method compare
+   * @param {Number} val
+   * @param {Number} number
+   * @return {Number}
+   *  0: same
+   * -1: <
+   *  1: >
+   */
+  function compare(val: number, number: number) {
+    if (val === number) {
+      return 0;
+    } else if (val < number) {
+      return -1;
+    } else if (val > number) {
+      return 1;
+    }
+    return;
+  }
+}