I just figured out my problem. Although this does not strike me as a
good solution...
My onModuleLoad() function had to be changed to the following:
public onModuleLoad() {
VerticalPanel vp = new VerticalPanel();
vp.add(new MenuObject());
RootPanel.get().add(vp);
String initToken = History.getToken();
if(initToken.length() > 0) {
onHistoryChanged(initToken);
} else {
onHistoryChanged("Home");
}
History.addValueChangeHandler(this);
}
It appears that I cannot just add an object to the root panel outside
of another panel.
On Feb 1, 7:37 pm, Michael Mullen <darkmage.m...@gmail.com> wrote:
> I checked a few other things.
>
> In my loading html document, I've got the following line in the body
> section to add history support:
> <iframe src="javascript:''" id="__gwt_historyFrame"
> style="position:absolute;width:0;height:0;border:0"></iframe>
>
> Is this the correct location to have this?
>
> I also just noticed that HistoryListener was depreciated, so I updated
> to ValueChangeHandler. My main section is, for the most part:
>
> public class entry implements EntryPoint, ValueChangeHandler {
> public onModuleLoad() {
> RootPanel.get().add(new MenuObject());
> String initToken = History.getToken();
> if(initToken.length() > 0) {
> onHistoryChanged(initToken);
> } else {
> onHistoryChanged("Home");
> }
> History.addValueChangeHandler(this);
> }
> public void onValueChange(ValueChangeEvent event) {
> onHistoryChanged((String) event.getValue());
> }
> public void onHistoryChanged(String token) {
> Window.alert("Testing " + token);
> }
>
> }
>
> When the page loads, a window appears alerting me to the name of the
> token being loaded. This also occurs while refreshing. However with
> the MenuBar that is displayed, the choice changes the token in the
> URL, however no window appears. If I select Reload in my browser, the
> page loads and the window appears.
>
> I've gone back and looked at the previous tutorials I was using for
> reference, but it appears that I've got everything. I could not find
> anything in the Showcase example - it looks like I've got everything.
>
> I'm using Chrome 4.0.302.3 dev, as well as Firefox 3.6 for testing.
>
> By chance is there something that I'm missing?
>
> On Jan 30, 2:31 am, Michael Mullen <darkmage.m...@gmail.com> wrote:
>
>
>
> > I was unable to find a solution in the discussion group, and I've been
> > unable to find a solution on my own. I probably missed something and
> > apologize ahead of time for draining someone's time.
>
> > Here is some code in question:
> > ...
> > public class entry implements EntryPoint, HistoryListener {
> > public onModuleLoad() {
> > RootPanel.get().add(new MenuObject());
> > History.addHistoryListener(this);
> > }
> > public void onHistoryChanged(String token) {
> > Window.alert("Testing " + token);
> > }
> > ...
>
> > }
>
> > ------- New Class -------
> > public class MenuObject extends MenuBar implements Command {
> > public MenuObject() {
> > super();
> > this.addItem(new MenuItem("Test", new Command() {
> > public void execute() {
> > History.newItem("Test");
> > }
> > ));
> > this.addItem(new MenuItem("Test1", new Command() {
> > public void execute() {
> > History.newItem("Test1");
> > }
> > ));
> > }
>
> > }
>
> > In this case, I've found that the selection of any MenuItem in my
> > custom MenuBar will not cause a change history event to occur. If I
> > were to place a complete MenuBar object in my entry point (not
> > separated into a different class), the change history event will
> > occur.
>
> > At the same time, the history token updates in either case. There are
> > no problems with the tokens in my browsers.
>
> > Is there anything that you guys could recommend to get history changes
> > by the external MenuBar class to trigger the history change event?
--
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-tool...@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.
