com.vaadin.server

Class UnsupportedBrowserHandler

java.lang.Object

com.vaadin.server.SynchronizedRequestHandler

com.vaadin.server.UnsupportedBrowserHandler

All Implemented Interfaces:

RequestHandler, Serializable

public class UnsupportedBrowserHandler
extends SynchronizedRequestHandler

A RequestHandler that presents an informative page if the browser in use is unsupported. Recognizes Chrome Frame and allow it to be used.

This handler is usually added to the application by LegacyCommunicationManager.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	FORCE_LOAD_COOKIE Cookie used to ignore browser checks

Constructor Summary

Constructors

Constructor and Description
UnsupportedBrowserHandler()

Method Summary

Modifier and Type	Method and Description
boolean	synchronizedHandleRequest(VaadinSession session, VaadinRequest request, VaadinResponse response) Identical to SynchronizedRequestHandler.handleRequest(VaadinSession, VaadinRequest, VaadinResponse) except the VaadinSession is locked before this is called and unlocked after this has completed.
protected void	writeBrowserTooOldPage(VaadinRequest request, VaadinResponse response) Writes a page encouraging the user to upgrade to a more current browser.

Methods inherited from class com.vaadin.server.SynchronizedRequestHandler

canHandleRequest, handleRequest

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

FORCE_LOAD_COOKIE

public static final String FORCE_LOAD_COOKIE

Cookie used to ignore browser checks

See Also:

Constant Field Values

Constructor Detail

UnsupportedBrowserHandler

public UnsupportedBrowserHandler()

Method Detail

synchronizedHandleRequest

public boolean synchronizedHandleRequest(VaadinSession session,
                                         VaadinRequest request,
                                         VaadinResponse response)
                                  throws IOException

Description copied from class: SynchronizedRequestHandler

Identical to SynchronizedRequestHandler.handleRequest(VaadinSession, VaadinRequest, VaadinResponse) except the VaadinSession is locked before this is called and unlocked after this has completed.

Specified by:

synchronizedHandleRequest in class SynchronizedRequestHandler

Parameters:

session - The session for the request

request - The request to handle

response - The response object to which a response can be written.

Returns:

true if a response has been written and no further request handlers should be called, otherwise false

Throws:

IOException - If an IO error occurred

See Also:

SynchronizedRequestHandler.handleRequest(VaadinSession, VaadinRequest, VaadinResponse)

writeBrowserTooOldPage

protected void writeBrowserTooOldPage(VaadinRequest request,
                                      VaadinResponse response)
                               throws IOException

Writes a page encouraging the user to upgrade to a more current browser.

Parameters:

request -

response -

Throws:

IOException