Directory

FaviconProgressindicator

Displays the progress as a favicon

This component comes in handy if you for example have several tabs open in your browser and waiting for a task to complete. The favicon in the browser tab will show a pie chart representing how far your task has progressed.

FaviconProgressindicator extends Vaadin's ProgressIndicator and should work with any version of Vaadin7 (that is not beta).

Check out the demo to see the component in action

Sample code

		final FaviconProgressIndicator pi = new FaviconProgressIndicator();
		pi.setPollingInterval(1000);
		pi.setValue(0f);

		layout.addComponent(pi);

// Here we create a background thread that tells how much progress is left:

		Runnable r = new Runnable() {
			
			@Override
			public void run() {
				for (int i = 0; i < 1000; i++) {
					
					try {
						getUI().getSession().getLockInstance().lock();
						// HERE updating the value
						pi.setValue(((float) (i + 1)) / 1000f);
						pi.markAsDirty();
					} finally {
						getUI().getSession().getLockInstance().unlock();
					}
					
					try {
						Thread.sleep(150);
					} catch (InterruptedException e) {

					}
				}
				
			}
		};
		new Thread(r).start();

Links

• PieCon javascript library
• Discussion Forum
• Discussion Forum (old version)
• Online Demo
• Source Code

Compatibility