refactor(popover): get popover working with dom, react, angular components

packages/demos/react/src/pages/PageOne.js

@@ -1,9 +1,10 @@
 import React, { Component } from 'react';
 
-import { createModal } from '@ionic/react';
+import { createModal, createPopover } from '@ionic/react';
 
 import PageTwo from './PageTwo';
 import ModalPage from './ModalPage';
+import PopoverPage from './PopoverPage';
 
 export default class PageOne extends Component {
 
@@ -46,6 +47,15 @@ export default class PageOne extends Component {
     });
   }
 
+  openPopover(event) {
+    return createPopover({
+      component: PopoverPage,
+      ev: event
+    }).then((popover) => {
+      return popover.present();
+    });
+  }
+
   componentDidMount() {
     setInterval(() => {
       this.setState({ content: Math.random() * 1000});
@@ -66,7 +76,10 @@ export default class PageOne extends Component {
           <ion-button onClick={() => this.goToPageTwo()}>Go to Page Two</ion-button>
         </div>
         <div>
-          <ion-button onClick={() => this.openModal()}>OpenModal</ion-button>
+          <ion-button onClick={() => this.openModal()}>Open Modal</ion-button>
+        </div>
+        <div>
+          <ion-button onClick={(event) => this.openPopover(event)}>Open Popover</ion-button>
         </div>
         <div>
           Some random content: {this.state.content}

packages/demos/react/src/pages/PopoverPage.js

@@ -0,0 +1,49 @@
+import React, { Component } from 'react';
+
+import PageThree from './PageThree';
+
+export default class PopoverPage extends Component {
+
+  constructor() {
+    super();
+    this.style = {
+      height: '100%'
+    };
+    this.state = {
+      content: 'popover page - ' + 50
+    }
+  }
+
+  componentDidMount() {
+    console.log('componentDidMount');
+    setInterval(() => {
+      this.setState({ content: 'Popover page - ' + Math.random() * 1000});
+    }, 1000);
+  }
+
+  dismiss() {
+    return this.props.popover.dismiss();
+  }
+
+  render() {
+    return [
+      <ion-header ref={(element) => this.element = element}>
+        <ion-toolbar>
+          <ion-title>Popover Page</ion-title>
+        </ion-toolbar>
+      </ion-header>,
+      <ion-content>
+        Popover Page
+        <div>
+          <ion-button onClick={() => this.dismiss()}>Dismiss</ion-button>
+        </div>
+        <div>
+          Some random content: {this.state.content}
+        </div>
+        <div>
+          Props : {this.props.paramOne}
+        </div>
+      </ion-content>
+    ];
+  }
+}