Thanks for the reply. I think I will use the event bus for now. Half way through reading about Guice. Looks pretty neat. Will finish up and start reading about Gin. I still don't know at this stage if I can dependency inject the event bus to the view that is created by the binder. Sounds a bit unlikely as it won't be requesting the instance from the injector, but we shall see...
Thanks, Pete On 28 July, 15:39, xworker <[email protected]> wrote: > Hi > > For now I'm putting events on the eventbus from the view. Then in the > entrypoint class handle all the events. I send the eventbus in the > constructor to the view since I have'nt put in GIN yet. I will look > into the new AcitvityManager concept from the 2010 IO and the > PlaceManager. > > /A > > On 28 Juli, 16:23, PeteUK <[email protected]> wrote: > > > Hello, > > > I'm starting with GWT and struggling to know how I should architect my > > program. > > > I am using the Mail application's source code as a basis for mine, so > > I'm hoping this reaches others who have inspected the source for the > > Mail application. > > > Within the Shortcuts area, are three sub-areas (stacks in the > > StackLayoutPanel): Mailboxes, Tasks, and Contacts. Inside Mailboxes, > > assume I replaced the tree with a single button "In Box", and created > > an event handler for it: > > > public class Mailboxes extends Composite { > > ... > > > �...@uihandler("inBoxBtn") > > void btnClicked(ClickEvent e) { > > // TODO: HOW TO HANDLE THIS?? > > } > > > } > > > I am not sure how to proceed in internally architecting the handling > > code. The Mailboxes class is a view but doesn't really have an > > associated presenter. I have an "outer presenter" which really deals > > with the entire outer view of the application (the root layout panel). > > I've been thinking about the following choices but not sure how to > > proceed: > > > 1) I could put these events on the event bus, and dependency-inject > > the event bus into the Mailboxes instance somehow (I'm looking into > > gin/guice as a separate thing). > > > 2) I could define a Presenter interface for Mailboxes which has a > > callback for this button. The Mailboxes class is a view class with no > > corresponding presenter class though, so not sure how I could > > implement this! The Mailboxes instance is created in Shortcuts.ui.xml > > as follows: > > > <g:stack> > > <g:header size='3'>Mailboxes</g:header> // .N.B style divs > > removed for brevity > > <mail:Mailboxes ui:field='mailboxes'/> // <--- > > Mailboxes instance created here > > </g:stack> > > > 3) Define a Presenter interface for Mailboxes and implement the > > callback in the outer presenter object. This means outer presenter is > > dealing with things a lot lower in the object tree than I feel it > > should. > > > If your task was to extend the Mail application in this way, how would > > you think it should be done? > > > Thanks, > > > Pete -- 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.
