Class UiApp

createApplication()

Deprecated. This function is deprecated and should not be used in new scripts.

Create a new UiInstance, which you can use to build a UI.

Use this in the entry point of your app to create a UI. For example:

 

 function doGet(e) {
   var app = UiApp.createApplication();
   // Create a button tied to a server click handler.
   app.add(app.createButton('Click me!', app.createServerHandler('onClick')).setId('button'));
   // Create a button tied to a client click handler.
   app.add(app.createButton('Click me too!',
       app.createClientHandler().forEventSource().setText('Clicked!')));
   return app; // If you don't return the UiInstance, the change won't happen
 }

 function onClick(e) {
   var app = UiApp.getActiveApplication();
   app.getElementById('button').setText('Clicked!');
   return app;
 }
 

Note that you cannot return a new UiInstance in an event handler from an existing UiInstance.

Return

UiInstance — a new UiInstance.

getActiveApplication()

Deprecated. This function is deprecated and should not be used in new scripts.

Gets the active UiInstance.

Use this in the context of an event handler to interact with the existing UI. For example:

 

 function doGet(e) {
   var app = UiApp.createApplication();
   app.add(app.createButton('Click me!', app.createServerHandler('onClick')).setId('button'));
   return app;
 }

 function onClick(e) {
   var app = UiApp.getActiveApplication();
   app.getElementById('button').setText('Clicked!');
   return app;  // If you don't return the UiInstance, the change won't happen
 }
 

Return

UiInstance — the active UiInstance.

getUserAgent()

Deprecated. This function is deprecated and should not be used in new scripts.

Return the browser user-agent string, so that you can tailor your app as needed.

Return

String — the user-agent string.