Thanks Sumit as always -- can I check why the fall-through class exists at all? It seems a little redundant for something to replace itself! :) I know that's what the docs say ... but why I wonder?
On Aug 10, 11:53 pm, Sumit Chandel <sumitchan...@google.com> wrote: > Hi Michael, > If you could elaborate a little more on which part of deferred binding > you're not sure about, that would help pinpoint the problem you're having > and setup deferred binding code for your mobile browser target. > > In general, however, the way deferred binding works is by defining the rules > for the deferred binding using replacement (see doc link below), creating > the default and the mobile classes that should be used for the desktop > browser and mobile browser versions of your widget, respectively, and then > creating your widget via the GWT.create(MyWidget.class) call to have the > compiler create bindings for the mobile target. > > Deferred Binding using > Replacement:http://code.google.com/webtoolkit/doc/1.6/DevGuideCodingBasics.html#D... > > For an example, check out the inner workings of the PopupPanel widget. > You'll notice that the PopupImpl instance belonging to the PopupPanel class > is created using the GWT.create(PopupImpl.class) call. Looking at the > deferred binding rules for the PopupPanel in the Popup.gwt.xml file > (contained in the gwt-user.jar), you'll see that the following rules are > defined: > > <!-- Fall through to this rule is the browser isn't IE or Mozilla --> > <replace-with class="com.google.gwt.user.client.ui.impl.PopupImpl"> > <when-type-is class="com.google.gwt.user.client.ui.impl.PopupImpl"/> > </replace-with> > > <!-- Mozilla needs a different implementation due to issue #410 --> > <replace-with class="com.google.gwt.user.client.ui.impl.PopupImplMozilla"> > <when-type-is class="com.google.gwt.user.client.ui.impl.PopupImpl"/> > <any> > <when-property-is name="user.agent" value="gecko"/> > <when-property-is name="user.agent" value="gecko1_8"/> > </any> > </replace-with> > > You could essentially follow the same pattern for the mobile version of > MyWidget.class, perhaps creating a MyWidget.gwt.xml file to contain the > deferred binding rules. > > Hope that helps, > -Sumit Chandel > > On Tue, Aug 4, 2009 at 3:38 AM, grue <michael.gruetz...@googlemail.com>wrote: > > > > > > > Hi, > > > I have to add a mobile-optimized version to an existing gwt > > application. After digging through the docs I found out that deferred > > binding is the technology of chioce. I believe I understand how it > > basically works but how do I use it in that specific use case? > > The mobile UI of our application differs a lot from the standard > > version so I need seperate stylesheets, and seperate GWT controls (we > > use composites a lot). Since the basic layout of our application is > > done in the .html file I would also need a separate html file. > > Now the question is: how do I do that? Are there any best practices? > > > I'd really appreciate any hint. > > > Best regards, > > Michael --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en -~----------~----~----~----~------~----~------~--~---
