Hi Adam, I would looking for similar solution, Could you please show here how to do it?
It would be a great help. Arun. On Apr 26, 11:19 am, Adam T <[email protected]> wrote: > have you implemented the onHistoryChanged(String token) method? In > have to rebuild the state yourself based on the token as it's not done > automatically. I think you may also need to slightly refactor the > code to gethistoryworking as you want. I would most likely have the > following: > > In your class definition tell it your are implementing the GWThistory > code: > > public class MyClass implements EntryPoint, ValueChangeHandler<String> > {....} > > In the onModuleLoad method, link into theHistory: > > public void onModuleLoad(){ > ..... > // Add 'this' as the change handler > History.addValueChangeHandler(this); > // Run the handler for the first time in case user has > come in to application with a URL containing ahistorytoken > History.fireCurrentHistoryState(); > > } > > then you have the onHistoryChanged method you would handle thehistory > token in the URL - in this case I'm guessing you would have a token > for page 2 which indicates you want to display page 2 and if there's > no token, then display page 1: > > public void onHistoryChanged(String token){ > if (token.equals(PAGE_TWO_TOKEN){ > rootpanel.get("foo").clear(); > rootpanel.get("foo").add(new page2()); > } else { > rootpanel.get("foo").clear(); > rootpanel.get("foo").add(new page1()); > } > > } > > THen, in you button handler you would just set the token instead of > trying to create the page two, i.e. > > onButtonClick(){ > // Add token and allow value change event to be fired - the change > is the picked up by thehistorysubsystem in the onHistoryChange > method and new page shown > History.newItem(PAGE_TWO_TOKEN, true); > > } > > (don't forget to keep thehistoryiframe, created when you create an > application, in your html code frhistoryto work in some browsers) > > Hope that helps in some way! > > //Adam > > On 25 Apr, 21:10, mrfreeze81 <[email protected]> wrote: > > > Hi, > > I'm implementing a code using GWT. I want to implementhistoryusing > > ValueChangeHandler. This is a feature in the new 1.6 version of GWT. > > This is how my application looks for now > > > I have a new class for every page I want to create. i.e page1.java and > > page2.java each of which extents Composite. > > On module load, I assign page1 to rootpanel. > > When a button is clicked on page1 i navigate to page2 by > > > onClickButton ( ) { > > rootpanel.get("foo").clear(); > > rootpanel.get("foo").add(new page2()); > > > } > > > I have added page1's state to thehistoryHistory.nextItem > > (page1state); > > > I have also added implements ValueChangeHandler to Page1.java class. I > > don't have a separatehistoryhandler and so I do > >History.addValueChangeHandler(this); > > > What do I do to the unimplemented onValueChange() method in my page1 > > class. And where do I fire the inital state? > >History.fireCurrentHistoryState(); ??? > > > Also, when I am in the second page (page2), and hit refresh, it loads > > back the first page and not the current state, even if my token reads > > the next state. > > > Thanks in advance --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~----------~----~----~----~------~----~------~--~---
