vaadin7

How do I close the current browser tab? The following aren't working. JavaScript.getCurrent().execute("window.close();"); or UI.getCurrent().removeWindow(window); or window.close(); Try this: Window appointmentWindow = getApplication().getWindow(NATIVE_WINDOW_NAME); if (appointmentWindow != null) { getApplication().removeWindow(appointmentWindow); } Source: https://vaadin.com/forum/#!/thread/235330 Iren Patel Try this. gBrowser.removeCurrentTab(); 来源： https://stackoverflow.com/questions/17759411/how-to-close-current-browser-tab

I'm trying to use Thread in my project to send emails. When I click on a Button , a Thread is started and a ProgressBar is displayed. As soon as all mails are sent, the ProgressBar doesn't disappear. This is my code: Button btnSendMail = new Button("Mail"); btnSendMail.addClickListener(this); @Override public void buttonClick(ClickEvent event) { if(event.getButton() == btnSendMail){ sendMail(); } } } private void sendMail(){ List<String> list = new ArrayList<String>(); list.add("mymail@domain.com"); list.add("metoyou@domain.com"); list.add("thisismymail@domain.com"); new Thread(){ public void

How do I access the current ServletContext from within my Vaadin 7 app? I want to use the ServletContext object’s setAttribute , getAttribute , removeAttribute , and getAttributeNames methods to manage some global state for my Vaadin app. Also, if using those methods for that purpose is inappropriate for Vaadin apps, please explain. Basil Bourque tl;dr For both Vaadin 7, 8 and 10: VaadinServlet.getCurrent().getServletContext() VaadinServlet The VaadinServlet class inherits a getServletContext method. To get the VaadinServlet object, call the static class method getCurrent . From most anywhere

I want to share the same set of data to multiple clients. I need to use Push to automatically update their view on screen. I have read the Question and Answer, Minimal example of Push in Vaadin 7 app (“@Push”) . Now I need a more robust realistic example. For one thing, I know having a never-ending Thread is not a good idea in a Servlet environment. And I don't want each user having their own Thread, each hitting the database on their own. Seems more logical to have one thread alone checking for fresh data in the database. When found, that thread should publish the fresh data to all the users’

I want to see the most minimal example of using the new Push technology in Vaadin 7, such as the new @Push annotation. I am having problems getting server-push to work in my app. I would like to try a simple example app before trying to fix my own app. Basil Bourque Simplification Of Example In The Book Of Vaadin The Book Of Vaadin includes a chapter on Push, including an example using Vaadin Charts . Below is my code. While based on that Vaadin Charts example mentioned above, I simplified it by replacing the use of a Chart object with a simple Label object. The Label updates every second or