fix(web): support for App 'appStateChange' event (#1715)

ionic-team · Jun 28, 2019 · 80cd214 · 80cd214
1 parent afc6d7e
commit 80cd214
Showing 1 changed file with 11 additions and 1 deletion.
diff --git a/core/src/web/app.ts b/core/src/web/app.ts
@@ -8,10 +8,12 @@ export class AppPluginWeb extends WebPlugin implements AppPlugin {
       name: 'App',
       platforms: ['web']
     });
+
+    document.addEventListener('visibilitychange', this.handleVisibilityChange.bind(this), false);
   }
 
   exitApp(): never {
-    throw new Error("Method not implemented.");
+    throw new Error('Method not implemented.');
   }
 
   canOpenUrl(_options: { url: string; }): Promise<{ value: boolean; }> {
@@ -25,6 +27,14 @@ export class AppPluginWeb extends WebPlugin implements AppPlugin {
   getLaunchUrl(): Promise<AppLaunchUrl> {
     return Promise.resolve({ url: '' });
   }
+
+  handleVisibilityChange():void {
+    const data = {
+      isActive: document.hidden !== true
+    };
+
+    this.notifyListeners('appStateChange', data);
+  }
 }
 
 const App = new AppPluginWeb();