fix(events): fix ionic/angular events

packages/angular/src/providers/events.ts

@@ -1,33 +1,20 @@
 import { Injectable } from '@angular/core';
+import { IonicWindow } from '../types/interfaces';
 
-import { ensureElementInBody, hydrateElement } from '../util/util';
-
-let hydratedElement: HTMLIonEventsElement = null;
 
 @Injectable()
 export class Events {
 
-  publish(topic: string, event?: any): Promise<any> {
-    return getElement().then((element: HTMLIonEventsElement) => {
-      return element.publish(topic, event);
-    });
-  }
-
   subscribe(topic: string, handler: (event?: any) => void) {
-    return getElement().then((element: HTMLIonEventsElement) => {
-      return element.subscribe(topic, handler);
-    });
+    return (window as IonicWindow).Ionic.Events.subscribe(topic, handler);
   }
-}
-function getElement(): Promise<HTMLIonEventsElement> {
-  if (hydratedElement) {
-    return Promise.resolve(hydratedElement);
-  }
-  const element = ensureElementInBody(ELEMENT_NAME);
-  return hydrateElement(element).then((element: HTMLIonEventsElement) => {
-    hydratedElement = element;
-    return element;
-  });
-}
 
-const ELEMENT_NAME = 'ion-events';
+  unsubscribe(topic: string, handler: (event?: any) => void) {
+    return (window as IonicWindow).Ionic.Events.unsubscribe(topic, handler);
+  }
+
+  publish(topic: string, event?: any) {
+    return (window as IonicWindow).Ionic.Events.publish(topic, event);
+  }
+
+}

packages/angular/src/types/interfaces.ts

@@ -21,3 +21,16 @@ export interface AngularEscapeHatch extends EscapeHatch {
   cfr?: ComponentFactoryResolver;
   injector?: Injector;
 }
+
+export interface IonicGlobal {
+  config: any;
+  Events: {
+    subscribe: (topic: string, ...handlers: Function[]) => void;
+    unsubscribe: (topic: string, handler: Function) => void;
+    publish: (topic: string, ...args: any[]) => any[];
+  };
+}
+
+export interface IonicWindow extends Window {
+  Ionic: IonicGlobal;
+}