Re: Background image shows up in hosted mode but not in web mode
Wrong path? Some CSS/browser issues? Who knows. Take firebug and check
your page's styling.
On 11 Jun., 17:15, Manolis Platakis m.plata...@gmail.com wrote:
Hello,
I have created the following css style to add a background image to
the html page of my application.
.bg {
background: url(images/bg.gif) 50% 50% no-repeat;
}
and in the .java I have:
RootPanel.get().addStyleName(bg);
In hosted mode I can see the background image but in web mode (after
compiling), although the application is up to date, the background
image does not show up.
Any ideas on why this might be happening?
Thanks in advance,
Manolis
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Re: Browser memory usage grows
Hi, In the general case GWT's design guards against common JS pitfalls that cause memory leaks. There are a few known issues though: When you use IFrames that memory is never decently released after removing the IFrame. The FormPanel can also leak. IE6/IE7 are also consuming a huge amount of memory (half a megabyte per image sometimes) if you use ImageBundles. That is caused by the AlphaLoader trick they use to support transparent PNGs in IE6. I disabled this trick for IE7 and now everything runs a lot smoother. All other memory leaks are possible plain old Java leaks caused by not cleaning up or releasing references to objects in you application (so your fault!) David On Fri, Jun 12, 2009 at 1:41 AM, Craig Sprycraig.s...@gmail.com wrote: Hello All, We've built an application using GWT 1.5.4 that calls a json server and the memory usage for the browser that it is running in keeps going up, I've tested this in IE, Firefox and Chrome with the same result. This application is a widget based application, we have a map widget(open street maps) and some list widgets but it doesn't seem to matter which widgets that we use the memory seems to grow. I've tried using each widget individually with the same result. The json that is returned is big, Firebug doesn't give me a value. Our application polls for new information. I've also tried to use this tool: http://blogs.msdn.com/gpde/pages/javascript-memory-leak-detector.aspx But it didn't detect any leak in javascript. Unfortunatley this is an internal application so I can't point you to our application. If it would be helpful I'll try and knock up a test case. Has anyone else had this problem? If so what was the solution? Thanks, Craig Spry --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Browser memory usage grows
Hi, I would just like to clarify your last point. I thought that GWT took java code and turned it into javascript, this is what http://code.google.com/webtoolkit/overview.html seems to indicate, so when I have deployed my application there is no java running just javascript, have I missed something? I suppose what I am trying to ask is do java memory leaks translate into javascript memory leaks? Thanks, Craig Spry On Fri, Jun 12, 2009 at 4:36 PM, David david.no...@gmail.com wrote: Hi, In the general case GWT's design guards against common JS pitfalls that cause memory leaks. There are a few known issues though: When you use IFrames that memory is never decently released after removing the IFrame. The FormPanel can also leak. IE6/IE7 are also consuming a huge amount of memory (half a megabyte per image sometimes) if you use ImageBundles. That is caused by the AlphaLoader trick they use to support transparent PNGs in IE6. I disabled this trick for IE7 and now everything runs a lot smoother. All other memory leaks are possible plain old Java leaks caused by not cleaning up or releasing references to objects in you application (so your fault!) David On Fri, Jun 12, 2009 at 1:41 AM, Craig Sprycraig.s...@gmail.com wrote: Hello All, We've built an application using GWT 1.5.4 that calls a json server and the memory usage for the browser that it is running in keeps going up, I've tested this in IE, Firefox and Chrome with the same result. This application is a widget based application, we have a map widget(open street maps) and some list widgets but it doesn't seem to matter which widgets that we use the memory seems to grow. I've tried using each widget individually with the same result. The json that is returned is big, Firebug doesn't give me a value. Our application polls for new information. I've also tried to use this tool: http://blogs.msdn.com/gpde/pages/javascript-memory-leak-detector.aspx But it didn't detect any leak in javascript. Unfortunatley this is an internal application so I can't point you to our application. If it would be helpful I'll try and knock up a test case. Has anyone else had this problem? If so what was the solution? Thanks, Craig Spry --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Browser memory usage grows
Hi, The last type of memory leaks is independent of the language you use. so yes, these leaks will translate from Java to Javascript. The reason is because your code is faulty since it keeps hard references to objects that are no longer necessary. For example you might have a list of listeners on a Model in an MVC and you might reuse the model in multiple views. If you remove the view but you forget to remove it's listener on the Model then you will have a big memory leak if you keep on using the model. Besides the memory leak your application might become slower and slower as well. David On Fri, Jun 12, 2009 at 8:53 AM, Craig Sprycraig.s...@gmail.com wrote: Hi, I would just like to clarify your last point. I thought that GWT took java code and turned it into javascript, this is what http://code.google.com/webtoolkit/overview.html seems to indicate, so when I have deployed my application there is no java running just javascript, have I missed something? I suppose what I am trying to ask is do java memory leaks translate into javascript memory leaks? Thanks, Craig Spry On Fri, Jun 12, 2009 at 4:36 PM, David david.no...@gmail.com wrote: Hi, In the general case GWT's design guards against common JS pitfalls that cause memory leaks. There are a few known issues though: When you use IFrames that memory is never decently released after removing the IFrame. The FormPanel can also leak. IE6/IE7 are also consuming a huge amount of memory (half a megabyte per image sometimes) if you use ImageBundles. That is caused by the AlphaLoader trick they use to support transparent PNGs in IE6. I disabled this trick for IE7 and now everything runs a lot smoother. All other memory leaks are possible plain old Java leaks caused by not cleaning up or releasing references to objects in you application (so your fault!) David On Fri, Jun 12, 2009 at 1:41 AM, Craig Sprycraig.s...@gmail.com wrote: Hello All, We've built an application using GWT 1.5.4 that calls a json server and the memory usage for the browser that it is running in keeps going up, I've tested this in IE, Firefox and Chrome with the same result. This application is a widget based application, we have a map widget(open street maps) and some list widgets but it doesn't seem to matter which widgets that we use the memory seems to grow. I've tried using each widget individually with the same result. The json that is returned is big, Firebug doesn't give me a value. Our application polls for new information. I've also tried to use this tool: http://blogs.msdn.com/gpde/pages/javascript-memory-leak-detector.aspx But it didn't detect any leak in javascript. Unfortunatley this is an internal application so I can't point you to our application. If it would be helpful I'll try and knock up a test case. Has anyone else had this problem? If so what was the solution? Thanks, Craig Spry --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Name a function that will not get changed when compliling?
Thanks, I now realize what was that strange comments in GQuery and that's what JSNI means. I will check later the GWT exporter. thanks. On 11 יוני, 23:41, Alex Rudnick a...@google.com wrote: Hey Shedokan, The approach I've used for that is to attach a GWT function to the window object ($wnd). There's an example in the docs over here:http://code.google.com/webtoolkit/doc/1.6/DevGuideCodingBasics.html#D... Check under the subsection Calling a Java Method from Handwritten JavaScript. Like Ian said, you could also use GWT Exporter. Hope this helps! On Thu, Jun 11, 2009 at 1:58 PM, Shedokanshedok...@gmail.com wrote: Hello, How can I name a function like start() and it will not change while compliling so that other javascript can call it? thanks. -- Alex Rudnick swe, gwt, atl --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Event handler for model ?
Well what exactly you want to do?
Dalla wrote:
Could you please post some examples will?
Or maybe send me some code? mnenchevs example was good, but more
examples never hurt :-)
On 11 Juni, 14:08, Will wil...@gmail.com wrote:
That's what I use as well. I created an Abstract Class with
HashmapEventHander,HandlerRegistration for removing a handler
(because HandlerManager.removeHandler(..) is depricated) and use that
for all my UI components that create custom events. I then create sub-
Classes of EventHandler for each logical group of events but that's
just to help keep the project readable. Doing it once for the base UI
class didn't seem overweight but we'll see how it performs once I get
the project into a perf test.
On Jun 10, 8:40 am, Dalla dalla_man...@hotmail.com wrote:
Hi
I´m having trouble understanding how to implement an event handler for
my custom objects with the new event handler system. Let´s pretend I
have a very simple model class like this one:
public class ArrivalData {
private Date date;
private boolean processing = false;
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
}
When setDate is called, I want to fire an event that my view
components can listen on, and act on when called for.
How would you go about doing that? Are there any existing handler
interfaces that can be used?
I found this tutorial (see link below), but it seems pretty
complicated for what I´m trying to
acheive.http://www.itsolut.com/chrismusings/2009/04/28/business-events-with-g...
What´s best practice here?
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Re: Preventing JavaScript Injection cient/server side solutions
Evaluating user input on the client side and checking for script, etc. tags is a good practice, however, there are ways to bypass such input validation. So the next best line of defense is to validate/re- validate on the server side where the GWT RPC call terminates. I am wondering what solutions exists at that end. -- Thomas On Jun 11, 5:20 pm, Jeff Chimene jchim...@gmail.com wrote: On 06/11/2009 04:18 PM, tamsler wrote: I am trying to figure out what the best way is to handle JavaScript injection cases. Since any client side input validation handling doesn't truly prevent one from injecting JS such as using tools like Firebug to re-post RPC calls etc. I am wondering if anybody has attempted to intercept JS injection on the server side by scanning RPC calls . I could imagine using a servlet filter to do this or or some other way. Any ideas/feeback is greatly appreciated. It's a good question, but it's not really GWT related. You're talking about server-side code. The JS code generated by GWT executes in the browser. I may be completely missing your point, but perhaps these articles may be apropos:http://code.google.com/webtoolkit/articles/using_gwt_for_json_mashups... andhttp://code.google.com/webtoolkit/articles/put_your_gwt_app_on_facebo... --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: LoginSecurityFAQ and sessionID/tokens
as I interpret this article:
http://groups.google.com/group/Google-Web-Toolkit/web/security-for-gwt-applications
then you should do 2 things:
store the session-id in a cookie on the client side + include the
session-id in every RPC call (to prevent XSFR)
and if you call a custom servlet from your application (e.g. we need
this to upload files), you should also include a hidden field with a
copy of the session-id.
anyone please correct me, if that's wrong
On Jun 11, 12:35 pm, Paul Robinson ukcue...@gmail.com wrote:
If you store the session ID in a cookie so that user logins can persist
beyond browser refreshes (as suggested in the FAQ), then the session ID
will end up in the header anyway.
eags wrote:
I am implementing user logins and authentication using the model
presented in the login security FAQ. In particular I plan on manually
maintaining a table of {sessionID,User,timeout} values for each active
session and not using the normal servlet session functionality.
So, my question is, where do I get the ID that is returned to the
client? I know that I can get one from the servlet session using
HttpServletRequest.getSession().getid() but it seems like I could just
use any randomly generated key right? And maybe I if face should not
use that technique because that sessionID is also in the header where
it can be easily snooped right? So, what is a good technique for
generating the sessionID? To avoid duplicates I would just check the
sessionID table before returning the sessionID to the client and if it
is already in use I just call generateSessionID() again. So my
question is what should getSessionID() look like?
I realize the recommended approach in the LoginSecurityFAQ is
controversial and I've already read all that debate so I'm not really
interested in more of that. I just need specific help regarding these
questions assuming I am doing what is recommended in the FAQ.
Thanks in advance for any help.
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Re: Preventing JavaScript Injection cient/server side solutions
on the client side, we simply use a html-editor and only enable simple functions like bold, italics, list... however, as already pointed out the user may easily work around this - and if he does, all tags/attributes that we do not allow will silently be filtered out on the serverside: we use this: http://www.owasp.org/index.php/Category:OWASP_AntiSamy_Project On Jun 12, 9:45 am, tamsler tams...@gmail.com wrote: Evaluating user input on the client side and checking for script, etc. tags is a good practice, however, there are ways to bypass such input validation. So the next best line of defense is to validate/re- validate on the server side where the GWT RPC call terminates. I am wondering what solutions exists at that end. -- Thomas On Jun 11, 5:20 pm, Jeff Chimene jchim...@gmail.com wrote: On 06/11/2009 04:18 PM, tamsler wrote: I am trying to figure out what the best way is to handle JavaScript injection cases. Since any client side input validation handling doesn't truly prevent one from injecting JS such as using tools like Firebug to re-post RPC calls etc. I am wondering if anybody has attempted to intercept JS injection on the server side by scanning RPC calls . I could imagine using a servlet filter to do this or or some other way. Any ideas/feeback is greatly appreciated. It's a good question, but it's not really GWT related. You're talking about server-side code. The JS code generated by GWT executes in the browser. I may be completely missing your point, but perhaps these articles may be apropos:http://code.google.com/webtoolkit/articles/using_gwt_for_json_mashups... andhttp://code.google.com/webtoolkit/articles/put_your_gwt_app_on_facebo... --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Eclipse Classic 3.5
Good to hear! Thanks very much. Looking forward to the release! On Jun 11, 10:24 pm, Rajeev Dayal rda...@google.com wrote: Hi, We're currently working on this. I don't have a set date for you, but we will get it out there as soon as we can. Thanks, Rajeev On Thu, Jun 11, 2009 at 4:15 PM, Joakim sarne...@gmail.com wrote: Any news on the progress of the 3.5 support? Can we expect a working plugin in time for the final release of Galileo in two weeks? On 28 Maj, 20:37, Miguel Méndez mmen...@google.com wrote: The plugin code is not open sourced at this time, but we do plan to open source it. On Tue, May 26, 2009 at 7:50 PM, acabler acab...@gmail.com wrote: This will be really nice to have. Is the plugin code available in svn yet? I would like to check it out so I can contribute patches for issues like these. thanks, adam On May 23, 10:40 am, Alex Rudnick a...@google.com wrote: Hey LiR, The plugin doesn't supportEclipse3.5yet. We're aware of the incompatibility, and it'll be fixed in an upcoming release -- likely soon before Galileo gets officially released. Thanks! On Fri, May 22, 2009 at 11:46 PM, LiR kirill...@gmail.com wrote: EclipseClassic3.5is available but google plugin (for 3.4 version) doesn`t want to install in new version. I have a Install Details message in top of window: The operation cannot be completed. See the details. And details block: Cannot complete the install because one or more required items could not be found. Software being installed: com.google.gdt.eclipse.suite.e34.feature.feature.group 1.0.1.v200905131143 Missing requirement: com.google.gdt.eclipse.suite.e34.feature.feature.group 1.0.1.v200905131143 requires 'org.eclipse.platform.feature.group [3.4.0,3.5.0)' but it could not be found -- Alex Rudnick swe, gwt, atl -- Miguel --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: GAE + GWT + password transfer
I really wish I had an answer to this. On Jun 10, 5:04 pm, Shane shanelstev...@gmail.com wrote: Sorry to keep talking to myself here, but I find what other sites are doing really interesting, and pertinent to GAE because there doesn't seem to be an agreed upon solution. Facebook uses a form for their logins that posts to an HTTPS url: https://login.facebook.com/login.php? So does Google for that matter. Twitter also allows forhttp://twitter.comandhttps://twitter.com, although the default is plaint http, probably because https is slower and more computationally expensive. So it looks like https is the most secure way, but I noticed that Google App Engine doesn't allow SSL unless you are using a *.appspot.com domain. http://code.google.com/appengine/docs/python/config/appconfig.html#Se... So if I have have my blah.mydomain.com pointing via DNS CNAME, to my blah.appspot.com, I can't usehttps://blah.mydomain.com. All this just to not send the password to the server plain text. :| Cheers, Shane On Jun 10, 4:15 pm, Shane shanelstev...@gmail.com wrote: I've actually just noticed that Twitter itself uses Basic Auth: http://apiwiki.twitter.com/Authentication It says OAuth is in development, but that Basic Auth won't be going anywhere for the foreseeable future. The trouble is, Basic Auth is insecure: http://en.wikipedia.org/wiki/Basic_access_authentication Although the scheme is easily implemented, it relies on the assumption that the connection between the client and server computers is secure and can be trusted. Specifically, the credentials are passed as plaintext and could be intercepted easily. The scheme also provides no protection for the information passed back from the server. I am going to look around at other public web API's, but if a site as large as Twitter is content to use this system, should I be all that worried? I would really like to know what experienced web programmers do here, either in GAE+GWT, or just generally. Cheers, Shane On Jun 10, 1:02 am, Shane shanelstev...@gmail.com wrote: I've seen some pretty heated debates around the discussion boards about this, but I haven't seen a solution that people decide on. Simply put, any application that I want to write will likely perform some sort of mashup between other services, like Twitter. For me to do anything interesting, I need the user to enter their Twitter username and password into a GWT client-side control on my site, which I then send back to my app on running on GAE. I'll then use the password to log into Twitter with their credentials and do whatever if is I want to do, all the while not saving the users password in plain text anywhere. I have no interest in holding onto anyone's credentials. So what is the best way for me to do this? I am hearing people say that anything short of HTTPS is a waste of time. I guess this also becomes the larger issue of authentication generally, and I'm surprised there are still such heated discussions on the subject. I thought it'd be a done deal by now. So, if anyone could point my in the right direction, in the context of GWT+GAE, I'd much appreciate it. --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Mouse Wheel Handler on a TextBox
Ah I wish I had known this before I created a native method to handle
it. haha
Thanks for the info. I was just wondering, are there any major
disadvantages with using the latest svn revisions as opposed to the
latest stable release?
-DLH
On Jun 11, 2:54 pm, Sumit Chandel sumitchan...@google.com wrote:
Hi D L H,
I'm guessing the browser you were testing on when you tried this out was
Firefox 3? There is a known (and fixed) issue for this reported on the Issue
Tracker. See Issue #2902 (link below). The fix for the issue has been
committed all will be included in the next release.
Issue #2902:http://code.google.com/p/google-web-toolkit/issues/detail?id=2902
If you're working from the GWT trunk, you can pick up and patch the issue
with r5398.
Hope that helps,
-Sumit Chandel
On Mon, Jun 8, 2009 at 7:09 AM, D L H thed2...@gmail.com wrote:
hello.
i'm trying to make a TextBox that will change value when someone
scrolls the mouse wheel over it. specifically, my goal is for the
number in the text box to increase when i scroll up, and decrease when
i scroll down. however, i'm having trouble figuring out the
MouseWheelHandler. i simplified my code to just change the value to
UP or DOWN, but it just doesn't work. it compiles though. i also
tried it with event.preventDefault(), but that didn't seem to have any
effect.
private TextBox valueField = new TextBox();
...
...
valueField.addMouseWheelHandler(new MouseWheelHandler() {
public void onMouseWheel(MouseWheelEvent event) {
//event.preventDefault();
if(event.isNorth()) {
valueField.setText(UP);
} else {
valueField.setText(DOWN);
}
}
});
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Running GWT with IBM JDK
Hi All, I got into this funny situation that i can not run my GWT application in IBM JDK(1.5). It seems GWT is using some sun related classes which are not available in IBM Java version. Can you please advise how can i deploy such application with IBM java. 10:20:39,309 ERROR [[/SwSupWebTool]] Exception while dispatching incoming RPC call com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract com.citi.client.beans.ApplicationUser com.citi.client.service.LoginService.login (java.lang.String,java.lang.String) throws com.citi.client.exception.ClientAppException' threw an unexpected exception: java.lang.NoSuchMethodError: sun/security/util/ HostnameChecker.getSubjectX500Name(Ljava/security/cert/ X509Certificate;)Lsun/security/x509/X500Name; at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure (RPC.java:360) at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse (RPC.java:546) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall (RemoteServiceServlet.java:166) at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost (RemoteServiceServlet.java:86) at javax.servlet.http.HttpServlet.service(HttpServlet.java: 713) at javax.servlet.http.HttpServlet.service(HttpServlet.java: 806) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke (StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke (StandardContextValve.java:175) at org.apache.geronimo.tomcat.valve.DefaultSubjectValve.invoke (DefaultSubjectValve.java:56) at org.apache.geronimo.tomcat.GeronimoStandardContext $SystemMethodValve.invoke(GeronimoStandardContext.java:353) at org.apache.geronimo.tomcat.valve.GeronimoBeforeAfterValve.invoke (GeronimoBeforeAfterValve.java:47) at org.apache.catalina.core.StandardHostValve.invoke (StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:104) at org.apache.catalina.core.StandardEngineValve.invoke (StandardEngineValve.java:109) at org.apache.catalina.valves.AccessLogValve.invoke (AccessLogValve.java:563) at org.apache.catalina.connector.CoyoteAdapter.service (CoyoteAdapter.java:261) at org.apache.coyote.http11.Http11Processor.process (Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol $Http11ConnectionHandler.process(Http11Protocol.java:581) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run (JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:810) Caused by: java.lang.NoSuchMethodError: sun/security/util/ HostnameChecker.getSubjectX500Name(Ljava/security/cert/ X509Certificate;)Lsun/security/x509/X500Name; at com.sun.net.ssl.internal.www.protocol.https.VerifierWrapper.getServername (DelegateHttpsURLConnection.java:154) at com.sun.net.ssl.internal.www.protocol.https.VerifierWrapper.verify (DelegateHttpsURLConnection.java:104) at sun.net.www.protocol.https.HttpsClient.checkURLSpoofing (HttpsClient.java:482) at sun.net.www.protocol.https.HttpsClient.afterConnect (HttpsClient.java:415) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect (AbstractDelegateHttpsURLConnection.java:170) at sun.net.www.protocol.http.HttpURLConnection.getInputStream (HttpURLConnection.java:943) at com.sun.net.ssl.internal.www.protocol.https.HttpsURLConnectionOldImpl.getInputStream (HttpsURLConnectionOldImpl.java:204) at gfinet.desktop.client.AuthValidator.postData (AuthValidator.java:600) at gfinet.desktop.client.AuthValidator.authenticateUserByPassword (AuthValidator.java:179) at gfinet.desktop.client.AuthAgent.authenticateUserOnly (AuthAgent.java:308) at com.citi.server.service.impl.GWTServiceImpl.login (GWTServiceImpl.java:121) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:79) at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:618) at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse (RPC.java:527) ... 20 more --~--~-~--~~~---~--~~ 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
async code and the callback-chain
hi all, I hope someone can help to find a solution to the following problem: I have some complex code that may need data from the server. When I make a request I get the data asynchronous, so I have to provide a callback to handle the response. Now all the code that use this function need a callback too. But this leads to very long chains of nested callbacks. Especially when I need to call async methods in a loop and every call may depend on the previous, I can`t find a way to do this without calling the method recursive in the onSuccess of the callback. But this way I get a StackOverflow very fast. I can`t request all data first and run the code that needs it after that, cause which data is needed may depend on the data I already got. I have really no idea - hopefully you have thx 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 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 -~--~~~~--~~--~--~---
Re: Running GWT with IBM JDK
On 12 juin, 14:49, ping2ravi ping2r...@gmail.com wrote: at sun.net.www.protocol.http.HttpURLConnection.getInputStream (HttpURLConnection.java:943) at com.sun.net.ssl.internal.www.protocol.https.HttpsURLConnectionOldImpl.getInputStream (HttpsURLConnectionOldImpl.java:204) at gfinet.desktop.client.AuthValidator.postData (AuthValidator.java:600) at gfinet.desktop.client.AuthValidator.authenticateUserByPassword (AuthValidator.java:179) at gfinet.desktop.client.AuthAgent.authenticateUserOnly (AuthAgent.java:308) at com.citi.server.service.impl.GWTServiceImpl.login (GWTServiceImpl.java:121) It actually looks like this is *your* code that throws. --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: GWT architecture MVP/EventBus (mentioned at Google I/O)
On 11 juin, 21:34, Benju b...@fastcastmedia.com wrote: I did not attend Google I/O but as soon as the video Google I/O 2009 - Best Practices for Architecting GWT App (http://www.youtube.com/ watch?v=PDuhR18-EdM) was posted I reviewed it and was a bit confused by the idea of an EventBus. For my part, I was pleased to see it as a best practice, as that's what I'm thinking about for nearly a year (would require a huuge refactoring of our app, so it's still just an idea floating in the air) (I didn't watch the video, just looked at the slides) From what I can tell the idea is that UI widgets requiring data from the server are able to fire off requests for some form of data like void getTransactionsForAccount(Account acct) then at some unknown later time (ms to seconds ussually) when a response comes in from the RPC call the eventbus is what actually directly recives the data and then it is dispatched Well, not necessarily, though yes, that's what they said at Google I/ O. One of the reasons is that there are probably more than a single place where you use that same data in your app (in GMail it could be the list of mails, the unread count for the box and/or label(s), and the conversation view of course). That way, all places are informed, wherever the initial request came from. Client UI: Hey call some RPC method with these parameters, my AsyncCallback is this EventBus thing ...some unknown time passes while the server does magic... Client Event Bus: A response came in of type X/Y/Z I should fire an event to all interested parties Client UI: According to this event I just recieved some of my UI code needs to change A few things are still very hazy for me... 1- What is missing here is when would the Client UI typically subscribe/unsubscribe from the event bus. If this were a desktop application I would simply use weak reference so I would not have to unsubscribe my UI manually to prevent a memory leak. As with any event, I'd subscribe in the onLoad and unsubscribe in the onUnload (would be even better if there was a destructor, so that even when not attached to the DOM, your widget could receive events and enter a dirty state, so that when it is attached again to the DOM it knows if it has to refresh or not) 2- Is there some EventBus code I should be using that already exists in the GWT SDK? Is this the same code that is used for handling widget events like clicking a button? Wasn't the code shown in the slides? (page #73 in the PDF, the event bus is just a HandlerManager (GWT 1.6 and upwards)) 3- Would you typically have one eventbus code for everything? If your event bus is just a HandleManager as in the presentation's sample code, then yes. You would probably have one event bus (instance) for the whole app, but you could also use some kind of HMVC (HMVP?) with component-wide event buses. (I'd rather have a single event bus though, and just use component- specific events) 4- How does this tie in with the MVP pattern? slide #73, he seems to be injecting the event bus into the presenter (I'm not used to MVP but it seems pretty logical to me). --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Community announcements on GWT blog
Hi, I've read community updates here : http://googlewebtoolkit.blogspot.com/2009/06/gwt-community-updates.html. I just wonder why it is talking about SmartGWT but not ExtGWT ? --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Background image shows up in hosted mode but not in web mode
It was, indeed, a css non-standard that was ignored by Firefox. Thanks
for your answer.
Manolis
On Jun 12, 9:21 am, alex.d alex.dukhov...@googlemail.com wrote:
Wrong path? Some CSS/browser issues? Who knows. Take firebug and check
your page's styling.
On 11 Jun., 17:15, Manolis Platakis m.plata...@gmail.com wrote:
Hello,
I have created the following css style to add a background image to
the html page of my application.
.bg {
background: url(images/bg.gif) 50% 50% no-repeat;
}
and in the .java I have:
RootPanel.get().addStyleName(bg);
In hosted mode I can see the background image but in web mode (after
compiling), although the application is up to date, the background
image does not show up.
Any ideas on why this might be happening?
Thanks in advance,
Manolis
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Re: Spring Security login forwarding to blank page issue
I'm experiencing the same. So far I'm blaming the problem on the application not being production ready yet, so it is buggy and sometimes I see some javascript errors. As these errors go away and the application stabilizes, I'll take a look at the problem more closely. But of course, if somebody has some clues about how to solve the problem, I'd like to hear them... (sorry I'm of no help). On Jun 1, 2:58 pm, tim.clymer tim.cly...@gmail.com wrote: Perhaps this may help in providing an answer. When I log out from my app and go to a different browser tab and go to the URL of my app, I'd expect to see a login screen. Instead, it seems as though the browser is caching the page and attempting to make calls to my services. In the response to these services, the server (tomcat) is sending back the login page (since I'm not logged in) as a response. It seems like the correct approach in this case would be to make sure the browser attempts to refresh my entry point every time so that it will be redirected to the login. I've tried adding meta http- equiv=Pragma content=no-cache to the top of my html file to force this like so: html head meta http-equiv=Pragma content=no-cache meta http-equiv=content-type content=text/html; charset=UTF-8 But to no avail. Any ideas? I'm in uncharted waters here with this caching stuff so your help would be greatly appreciated. Tim On Jun 1, 1:00 pm, tim.clymer tim.cly...@gmail.com wrote: I've done a bit of searching around the forums but haven't seen this issue crop up (though there are plenty of blank page issues from what I've seen). I'm having an intermittent issue where when I login to my application (I use Spring Security as my security framework), it forwards to my app's HTML page (my application's entry point). Sometimes it will then load and show the application, other times it shows just a blank page. If I refresh the blank page, my application comes up without fail. This would lend me to believe that this is a caching issue. Has anyone else experienced this and have any advice on solving it? Thanks! --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Large Data Set problems
Hi!
The problem is that in your function public void showUsers() { you
create a entry into FlexTable for each user, including the non-visible
ones.
Some browsers have problems displaying a huge data.
To solve this you have 2 options:
Create some kind of pagination into your flextable, creating a set of
your users and display only the possible visible ones(Something like
50), and remove/add the users as the user navigate through it.
Other option as Tom Hjeliming said, is to use some framework like
SmartGWT(http://code.google.com/p/smartgwt/). SmartGWT have a lot of
features and Widgets that makes life easier.
One of them is the Live Grid(http://www.smartclient.com/smartgwt/
showcase/#featured_grid_live), in the example it have around 700
records, but only render the visible ones, so it runs smooth on IE and
Firefox.
SmartGWT can load only a partial set of the data and ask server for
more when needed or load everything, depends on your requirement.
Regards
On Jun 11, 2:13 pm, Tom Hjellming thjellm...@riverglassinc.com
wrote:
Hi Joe,
The trick is to not even try to load that much data into the browser.
We use the SmartGWT widget library which has very good support for
virtual pagination of lists and comboboxes. By default, it only loads
the first 75 rows and then as the user scrolls down, calls are made back
to the server to retrieve the desired data - which is then shown to the
user. There is an occasional delay when the user sees blank space which
is then filled in when the data comes in. But overall, it is a great
solution -we're viewing tables with thousands of rows and seeing better
performance than our old Swing-based application.
Tom
Joe Larson wrote:
I am having a performance problem. I am trying to build a page that
allows the user to select from a fairly large list of objects (up to
20,000). We have filtering capabilities to trim the list so the user
doesn't have to scroll through all of them. It's a reasonable UI.
Unfortunately, I only get decent performance on Safari. IE6 is
exceptionally miserable. It's okay when the list has 100 items, but
it crashes as we exceed 300. So I've been experimenting, and I
haven't found a way around it.
So I created a sample app. All I did was populate an
ArrayListString with 20,000 fairly short strings that I read out of
the HTML file. Under Safari 4 on a G5 Mac Pro, this is almost
instant. Under IE6 on a similar age Windows box, it's taking 4
minutes. Firefox on the G5 runs out of memory.
Is it possible to store large amounts of data in my GWT applications?
Or do I have to store fairly small amounts of data and go back and
forth to the server a lot? If it's the latter, I may as well just go
back to what we used to do (WebObjects).
I'm including my little sample program. Maybe there's something
obvious that I can do?
-Joe
--- GWTMinimum.java ---
package com.missionmode.gwtminimum.client;
import java.util.*;
import com.google.gwt.core.client.*;
import com.google.gwt.user.client.*;
import com.google.gwt.user.client.ui.*;
/**
* Entry point classes define codeonModuleLoad()/code.
*/
public class GWTMinimum implements EntryPoint {
public FlexTable panel;
public Button loadBtn;
public Button displayBtn;
public ListBox listBox;
public Label label;
public ArrayListString usernames = new ArrayListString();
public String[] parts;
/**
* This is the entry point method.
*/
public void onModuleLoad() {
panel = new FlexTable();
RootPanel.get(web2).add(panel);
loadBtn = new Button(Click to start load);
panel.setWidget(0, 0, loadBtn);
loadBtn.addClickListener(new ClickListener() {
public void onClick(Widget sender) {
loadUsers();
}
});
}
/**
* We've loaded the user table. Set up so they
* can press another button to display the data.
*/
public void setupForDisplay() {
displayBtn = new Button(Click to Display);
panel.setWidget(0, 1, displayBtn);
displayBtn.addClickListener(new ClickListener() {
public void onClick(Widget sender) {
showUsers();
}
});
}
/**
* Load the users from the HTML page.
*/
public void loadUsers() {
if (parts == null) {
String str = stringFromDocument(users);
parts = str.split(===);
loadBtn.setText(Click me again);
}
else {
for (String name : parts) {
name = name.trim();
gwt-maven and web service
Hi all, I'm trying to call and get response from a wsdl service. When I compile the UI layer with maven, it throws this error: com.google.gwt.user.client.rpc.SerializationException: Type 'javax.xml.ws.WebServiceException' was not included in the set of types which can be serialized by this SerializationPolicy or its Class object could not be loaded. For security purposes, this type will not be serialized. I tried to understand the error...but I dont! I found that the class 'javax.xml.ws.WebServiceException' is implemented java.oi.Serializer but I dont know why GWTSerializer find this call non serializable. Actually, the first error I got was that Maven couldnt find the class javax.xml.ws.Service, so I added the dependency of jaxws-api.jar into pom.xml. After that, I compiled the project and the above error was thrown. Please help! Netty --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: GAE + GWT + password transfer
I'm not sure what your question is. Do you have a specific question? You mentioned problems with HTTPS on GAE, which is probably a topic more appropriate for the GAE group. As far as GWT is concerned, I think you've already got the gist: HTTPS is a must-have for sending passwords over a public network in anything that can come close to being called a secure way. On Fri, Jun 12, 2009 at 7:46 AM, Shaneshanelstev...@gmail.com wrote: I really wish I had an answer to this. On Jun 10, 5:04 pm, Shane shanelstev...@gmail.com wrote: Sorry to keep talking to myself here, but I find what other sites are doing really interesting, and pertinent to GAE because there doesn't seem to be an agreed upon solution. Facebook uses a form for their logins that posts to an HTTPS url: https://login.facebook.com/login.php? So does Google for that matter. Twitter also allows forhttp://twitter.comandhttps://twitter.com, although the default is plaint http, probably because https is slower and more computationally expensive. So it looks like https is the most secure way, but I noticed that Google App Engine doesn't allow SSL unless you are using a *.appspot.com domain. http://code.google.com/appengine/docs/python/config/appconfig.html#Se... So if I have have my blah.mydomain.com pointing via DNS CNAME, to my blah.appspot.com, I can't usehttps://blah.mydomain.com. All this just to not send the password to the server plain text. :| Cheers, Shane On Jun 10, 4:15 pm, Shane shanelstev...@gmail.com wrote: I've actually just noticed that Twitter itself uses Basic Auth: http://apiwiki.twitter.com/Authentication It says OAuth is in development, but that Basic Auth won't be going anywhere for the foreseeable future. The trouble is, Basic Auth is insecure: http://en.wikipedia.org/wiki/Basic_access_authentication Although the scheme is easily implemented, it relies on the assumption that the connection between the client and server computers is secure and can be trusted. Specifically, the credentials are passed as plaintext and could be intercepted easily. The scheme also provides no protection for the information passed back from the server. I am going to look around at other public web API's, but if a site as large as Twitter is content to use this system, should I be all that worried? I would really like to know what experienced web programmers do here, either in GAE+GWT, or just generally. Cheers, Shane On Jun 10, 1:02 am, Shane shanelstev...@gmail.com wrote: I've seen some pretty heated debates around the discussion boards about this, but I haven't seen a solution that people decide on. Simply put, any application that I want to write will likely perform some sort of mashup between other services, like Twitter. For me to do anything interesting, I need the user to enter their Twitter username and password into a GWT client-side control on my site, which I then send back to my app on running on GAE. I'll then use the password to log into Twitter with their credentials and do whatever if is I want to do, all the while not saving the users password in plain text anywhere. I have no interest in holding onto anyone's credentials. So what is the best way for me to do this? I am hearing people say that anything short of HTTPS is a waste of time. I guess this also becomes the larger issue of authentication generally, and I'm surprised there are still such heated discussions on the subject. I thought it'd be a done deal by now. So, if anyone could point my in the right direction, in the context of GWT+GAE, I'd much appreciate it. --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
New Event Handling and Composites
I am just not getting the new Event handling. I have went over every
example I can find, but it is not clicking. How do you let composite
widgets subscribe to events from other composite widgets? From reading
it sounds like there is a HandlerManager that you register with by
implementing the HasxxHandlers interface, but I cannot piece together
how the Class that creates the event fires it off to the subscribers.
For example I have the following SimpleWidget that extends Composite
that contains a single button. I have another Composite widget that
wishes to be notified when that button is clicked. Can someone fill in
the blanks for me?
(Note I did not attempt to add the event handlers because I do not
want to confuse others who may have the same issue.)
public class SimpleWidget extends Composite{
private Button button;
public SimpleWidget() {
FlowPanel fp = new FlowPanel();
button = new Button(Click me);
//With listeners I would create an anonymous inner class
//that fires the click events to registered listeners.
//I don't know how to fire events for handlers
//button.addClickHandler(handler);???
fp.add(button);
initWidget(fp);
}
}
public class DoSomething extends Composite{
public DoSomething() {
FlowPanel fp = new FlowPanel();
SimpleWidget simple = new SimpleWidget();
fp.add(simple);
initWidget(fp);
}
}
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Flex Table or DIV's for layout
Which will be lighter size wise if there are too many of them for laying out components? Suggestions? --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Dynamic ImageBundle selection ?
Hi,
My application will by displaying a country flag depending on a locale
selected form list. All the flags are gathered within LocaleFlag
(extends ImageBundle).
I want to be able to get flag image out of LocaleFlag having only a
locale name string in hand.
List selection - Locale name string (e.g. uk) - LocaleFlag -
corresponding com.google.gwt.user.client.ui.Image instance.
So far I came up with a bit brute force spaghetti code solution. I
created LocaleName enumeration with getImage():Image abstract method.
Every enum value implements the method to return corresponding image
instance.
public enum CountryCode {
...
UK() {
@Override
public Image getImage() {
return
LocaleFlags.Util.create().flagUnitedKingdom().createImage
();
}
};
abstract Image getImage();
...
}
With this enum in hand I can call CountyCode.valueOf(UK).getImage()
and this satisfies my requirement. What I don't like is massive amount
of copy-paste code I have to create ( getImage() implementation have
to be developed for every single enum value).
Can you guys come up with a better solution? Ideally that would be
LocaleFlag.getImage(UK) method that could internally discover,
create and return Image instance.
The constraint is we use ImageBundle. I'm aware of the fact the Image
itself could be used instead with an url created on-fly but that's not
an option. You should not concentrate on the subject itself (Locale
and flags) but on the solution (large enumeration code).
Regards,
Marcin.
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-~--~~~~--~~--~--~---
GWT in Eclipse spontaneously stopped working
I'm running Leopard with Eclipse 3.4.2 and GWT 1.6.4. I was able create the first Getting Started app and everything worked fine. I then started creating the StockMarket app from the tutorial and now hosted mode won't do anything on either project or a brand new empty one. There is a crashlog being generated, but I have not clue what it means. Process: java [9015] Path:/System/Library/Frameworks/JavaVM.framework/Versions/ 1.5.0/Home/bin/java Identifier: java Version: ??? (???) Code Type: X86-64 (Native) Parent Process: eclipse [8909] Date/Time: 2009-06-11 23:18:26.927 -0700 OS Version: Mac OS X 10.5.7 (9J61) Report Version: 6 Anonymous UUID: CEE66248-AC27-40A4-B86B-B4DBBAD18CA7 Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: 0x000d, 0x Crashed Thread: 0 Thread 0 Crashed: 0 ??? 0x0001000111c1 0 + 4295037377 1 ??? 0x00010001276f 0 + 4295042927 2 ??? 0x000100012a1c 0 + 4295043612 3 ??? 0x00010001104d 0 + 4295037005 Thread 0 crashed with X86 Thread State (64-bit): rax: 0x0041 rbx: 0x7fff5fbff5d8 rcx: 0x rdx: 0x0014 rdi: 0x000100014708 rsi: 0x2f7972617262694c rbp: 0x7fff5fbff420 rsp: 0x7fff5fbff420 r8: 0x910c55f2 r9: 0x r10: 0x r11: 0x r12: 0x0014 r13: 0x000100014708 r14: 0x0015 r15: 0x rip: 0x0001000111c1 rfl: 0x00010293 cr2: 0x000100014708 Binary Images: 0x7fff5fc0 - 0x7fff5fc2e643 dyld 97.1 (???) b40847f1ce1ba2ed13837aeccbf19284 /usr/lib/dyld Thanks, Leo --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Can't debug in Eclipse
Hi! I just started using the gwt. I followed the instructions in the getting started tutorial but i cant debug my application in eclipse. If i click on Debug - Stockwatcher Eclipse doesnt stop at any Breakpoint. It doesnt even switch into the debug view. The Hosted Mode Windows and the client app start but no debugging. What is my mistake? --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
file importing in gwt
I'm new of GWT.I am doing a project using GWT. The project have two module namely student and Recruiter. I want to import the file from recruiter module into file of student module.how to do this. --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
ClassNotFoundException when have reference to another project
Hello everybody! I have simple GWT project. In servlet implementation I use class from another Java project (it is regular class library). Both of them are eclipse projects. Main project has reference to library project, I can compile. But when I run it I get ClassNotFoundException. If I export my library to jar file and put that jar into WEB-INF/lib everything is fine. But my library project is under development, I modify it frequently and wish my main project picks up classes not jar file. I tried to add library project to runtime class path, it helps when run application locally, but if I upload application to google apps engine I face the same problem. What is the best way to handle this situation? Thank you, Andrey --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Can't debug in Eclipse
See http://code.google.com/p/google-web-toolkit/issues/detail?id=3724 Let me know if you have other questions. On Fri, Jun 12, 2009 at 10:54 AM, Max max.blumena...@googlemail.com wrote: Hi! I just started using the gwt. I followed the instructions in the getting started tutorial but i cant debug my application in eclipse. If i click on Debug - Stockwatcher Eclipse doesnt stop at any Breakpoint. It doesnt even switch into the debug view. The Hosted Mode Windows and the client app start but no debugging. What is my mistake? --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: GAE + GWT + password transfer
Maybe the question got lost in my research. I'm not from a Web background (C++ + video games), so this may be painfully obvious, but I want to know how people authenticate over non- HTTPS connections, specifically using GAE (Java). My point is that any app that stores any sort of user specific data will need the user to log into their app. I've had a look around at various public sites, and watched the data going back and forth over the wire, and the results are surprising. A lot of public sites use basic auth over http, which surprises me. As I mention above, even Twitter doesn't use HTTPS in its default state for users loggin in, and same goes for their REST API. So, what do people do? I am going to look into OpenID and OAuth next. Cheers, Shane On Jun 13, 12:57 am, Isaac Truett itru...@gmail.com wrote: I'm not sure what your question is. Do you have a specific question? You mentioned problems with HTTPS on GAE, which is probably a topic more appropriate for the GAE group. As far as GWT is concerned, I think you've already got the gist: HTTPS is a must-have for sending passwords over a public network in anything that can come close to being called a secure way. On Fri, Jun 12, 2009 at 7:46 AM, Shaneshanelstev...@gmail.com wrote: I really wish I had an answer to this. On Jun 10, 5:04 pm, Shane shanelstev...@gmail.com wrote: Sorry to keep talking to myself here, but I find what other sites are doing really interesting, and pertinent to GAE because there doesn't seem to be an agreed upon solution. Facebook uses a form for their logins that posts to an HTTPS url: https://login.facebook.com/login.php? So does Google for that matter. Twitter also allows forhttp://twitter.comandhttps://twitter.com, although the default is plaint http, probably because https is slower and more computationally expensive. So it looks like https is the most secure way, but I noticed that Google App Engine doesn't allow SSL unless you are using a *.appspot.com domain. http://code.google.com/appengine/docs/python/config/appconfig.html#Se... So if I have have my blah.mydomain.com pointing via DNS CNAME, to my blah.appspot.com, I can't usehttps://blah.mydomain.com. All this just to not send the password to the server plain text. :| Cheers, Shane On Jun 10, 4:15 pm, Shane shanelstev...@gmail.com wrote: I've actually just noticed that Twitter itself uses Basic Auth: http://apiwiki.twitter.com/Authentication It says OAuth is in development, but that Basic Auth won't be going anywhere for the foreseeable future. The trouble is, Basic Auth is insecure: http://en.wikipedia.org/wiki/Basic_access_authentication Although the scheme is easily implemented, it relies on the assumption that the connection between the client and server computers is secure and can be trusted. Specifically, the credentials are passed as plaintext and could be intercepted easily. The scheme also provides no protection for the information passed back from the server. I am going to look around at other public web API's, but if a site as large as Twitter is content to use this system, should I be all that worried? I would really like to know what experienced web programmers do here, either in GAE+GWT, or just generally. Cheers, Shane On Jun 10, 1:02 am, Shane shanelstev...@gmail.com wrote: I've seen some pretty heated debates around the discussion boards about this, but I haven't seen a solution that people decide on. Simply put, any application that I want to write will likely perform some sort of mashup between other services, like Twitter. For me to do anything interesting, I need the user to enter their Twitter username and password into a GWT client-side control on my site, which I then send back to my app on running on GAE. I'll then use the password to log into Twitter with their credentials and do whatever if is I want to do, all the while not saving the users password in plain text anywhere. I have no interest in holding onto anyone's credentials. So what is the best way for me to do this? I am hearing people say that anything short of HTTPS is a waste of time. I guess this also becomes the larger issue of authentication generally, and I'm surprised there are still such heated discussions on the subject. I thought it'd be a done deal by now. So, if anyone could point my in the right direction, in the context of GWT+GAE, I'd much appreciate it. --~--~-~--~~~---~--~~ 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
Getting auto scroll
Hi, I am new to GWT GWT-EXT I am using GWT and GWT-EXT. I use absolutepanel inside a GWT-EXT panel. I use drag and drop. My requirement is to get automatic scroll when I drop the widgets at the edges of absolutepanel. If I do not set sizes for GWT-EXT panel (rather mention % size) and no size mentioned for absolute panel. I do get auto scroll but when drag the drop the first element I get exception that absolutepanel has zero size. So as temp solution, I set GWT EXT panel size as 2000, 2000 to accommodate more number of dnd widgets. Here the problem is when we scroll absolutepanel towards left or bottom, placing the dropped widgets at drop location giving me problems. The way I am calculating x, y coordinates for drop target is, get screen coordinates from drop event (x, y), deduct absolutepanel absolute left and absolute right (say x1 and y2), I try to place dropped object at x2 = x-x1 and y2=y-y1. This calculation makes dropped targets placed at wrong position when absolutepanel is scrolled left. Any help is appreciated. --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: async code and the callback-chain
Daniel, First thing, With Asynchronous call you should never get the Stack over flow as Asynchronous calls are running in different thread and your function retursn back before calls finish. But i think you have genuine problem of asynchronous call chains...where writing code become too problematic. I had the same issue and long back i started this discussion that having synchronous calls will be a good idea too., so that you don't need to write async callback and leave it up to the developer if they want to use synchronous calls. But that time then i had to create a single class with one boolean variable for each kind of call and correpsonding data. So whenevr a call finishes i call the function of that class as MySIngleTonCLass.setLoginCallFNished(true) MySIngleTonCLass.setUser(User) MySIngleTonCLass.refresh(); if some other class finishes then i call something like MySIngleTonCLass.setDataRetrivedCall1(true) MySIngleTonCLass.setDataRetrived1(someData) MySIngleTonCLass.refresh(); MySIngleTonCLass.setDataRetrivedCall2(true) MySIngleTonCLass.setDataRetrived2(someData2) MySIngleTonCLass.refresh(); and then had to write my login in MySIngletonClass to update UI. ( my problem area was updating the UI) so i do something like if(getLoginCallFNished() and user != null) create Logout Link else create loginLink if(getDataRetrivedCall1() and data1!= null) Display the Data else Display No Data found So yopu need to see if such kind of solution will fir to your problem. But definitely asynchrnous call WILL not give you stack overflow. It must be your code somewhere. Ravi On Jun 12, 2:14 pm, daniel d.brelov...@googlemail.com wrote: hi all, I hope someone can help to find a solution to the following problem: I have some complex code that may need data from the server. When I make a request I get the data asynchronous, so I have to provide a callback to handle the response. Now all the code that use this function need a callback too. But this leads to very long chains of nested callbacks. Especially when I need to call async methods in a loop and every call may depend on the previous, I can`t find a way to do this without calling the method recursive in the onSuccess of the callback. But this way I get a StackOverflow very fast. I can`t request all data first and run the code that needs it after that, cause which data is needed may depend on the data I already got. I have really no idea - hopefully you have thx 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 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 -~--~~~~--~~--~--~---
Re: Request after request.
Did you've found a sollution for your case?
And, did you already take a look to GWTEventService? :)
On 27 apr, 06:53, davidst...@gmail.com davidst...@gmail.com wrote:
I mean this : getThreadLocalRequest().getSession().getId()
gives me the same id for two different clients that are opened.
Someone told me that maybe two browsers share a cookie cache/address
space
and because of that they see the same cookie.
I googled this theme about two weeks but i did not find out how to
separate them .
So maybe this affects in some way the story with requests, maybe there
is only one thread openes for two clients.
On Apr 26, 11:07 pm, Vitali Lovich vlov...@gmail.com wrote:
On Sun, Apr 26, 2009 at 3:29 PM, davidst...@gmail.com
davidst...@gmail.comwrote:
Are you sure you're not doing a notify? Maybe you actually receive an
event? InterruptedException (from memory, haven't looked at the
javadoc)
get's called when wait times out - if you call notify, it'll wake up the
thread normally.
That's exactly what i do there, notifying.
Forgive my newbieness, i thought notify should cause
InterruptedException
Minus one problem.
But i still can't understand what is going on with Hosted Mode.
There is something else, new session does not open for new client.
Maybe it is something local on my comp, maybe there is something
to configure ?
What do you mean by new session (I hate this term in general because so many
things have sessions that the term loses all meaning). Is there some
specific session id you are referring to? Threads?
On Apr 24, 6:55 am, Vitali Lovich vlov...@gmail.com wrote:
On Thu, Apr 23, 2009 at 2:05 PM, davidst...@gmail.com
davidst...@gmail.comwrote:
I tested both FF and IE6 . I'm pretty surprised too of the results, so
I'm still searching the problem.
Are you calling getEvents (the one
that sends of the request to the server) on the client-side more
than
once?
No, i checked it after you said that two requests is the maximum.
I call the getEvents only once, after logging in.
There is also something weird happens when it runs in browser .
In the getEvents on server side in this part
I can't imagine a case where the server side behavior will change if you
use
hosted mode or a browser. I mean hosted mode runs in the same VM, but
it's
a different thread.
try
{
synchronized( user )
{
user.wait( 20*1000 );
}
}
catch ( InterruptedException ignored )
{
System.out.println(Server interupted, sending response);
}
when interrupted the message is not printed. It does not enter the
catch clause at all.
Are you sure you're not doing a notify? Maybe you actually receive an
event? InterruptedException (from memory, haven't looked at the
javadoc)
get's called when wait times out - if you call notify, it'll wake up the
thread normally. Or is the other way around? In any case, put the
print
after your catch - that's where it belongs.
But definitely, instrument getEvents something like this on the server
side:
System.out.println(user + waiting for events);
try {
// code for getEvents} finally {
System.out.println(user + responding to client);
}
That'll help you figure out what your server is doing.
Also, you can usehttp://
code.google.com/p/google-web-toolkit/wiki/LightweightMetricsDe...to
inject profiling of your RPC calls to figure out what your browser is
actually doing (in case you miss something).
I've added some print after wait in the try
clause, and when the server interrupted the message in the try clause
printed.
Is it magic or something ? )))
On Apr 23, 12:01 pm, Vitali Lovich vlov...@gmail.com wrote:
Seriously doubt it's a hosted mode mode issue. Which browser did
you
test
web-mode with? Hosted mode actually launches a version of IE6, so
using
FF
or IE7 may present different issues (for instance they might have a
raised
AJAX connection limit)
The issue is purely on the client side. Are you calling getEvents
(the
one
that sends of the request to the server) on the client-side more
than
once?
On Thu, Apr 23, 2009 at 4:44 AM, davidst...@gmail.com
davidst...@gmail.comwrote:
Well, it really looks like a bug, cause when i
compile it to browser it works properly ( meanwhile ).
Thanks for your answers.
On Apr 23, 10:05 am, Salvador Diaz diaz.salva...@gmail.com
wrote:
As Vitali said, there are some common pitfalls when trying to
implement something along the lines of whatyou're trying to do.
There have been plenty of discussions related to chat
implementations
Re: Can't debug in Eclipse
Wow! Thx for the fast reply! Now debbuging works perfectly! On 12 Jun., 17:40, Rajeev Dayal rda...@google.com wrote: Seehttp://code.google.com/p/google-web-toolkit/issues/detail?id=3724 Let me know if you have other questions. On Fri, Jun 12, 2009 at 10:54 AM, Max max.blumena...@googlemail.com wrote: Hi! I just started using the gwt. I followed the instructions in the getting started tutorial but i cant debug my application in eclipse. If i click on Debug - Stockwatcher Eclipse doesnt stop at any Breakpoint. It doesnt even switch into the debug view. The Hosted Mode Windows and the client app start but no debugging. What is my mistake? --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
GWT in Custome browswer.
Hi readers, I want to know how can I run a GWT application in Custom browser in Hosted mode. Here is what exactly I am looking for: I have an application which interacts with the client machine through window.external calls. We are using a IE 6 in a custom container for getting this done. I am working on a project to convert this application to a GWT app and want to use the same container inside the GWT hosted browser. Is it possible to use a custom browser as my hosted browser in GWT? Please let me know. Thanks, Sajil Koroth --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: GWT architecture MVP/EventBus (mentioned at Google I/O)
Thanks for the reply I have some further thoughts... Looking at the source code for the event handling in GWT 1.6 it seems the fundamental difference is as follows... Old way with listeners I am adding this event listener to this component, when the listener is triggered I know the source must be this component as it is the only one added to the listener list New way with listeners I am adding this handler to this component, when something happens to the component firing and event I will receive a notification, the event itself will contain enough information such as the source or custom properties which let me determine how to do something. The more I think about the architecture outlined by the tech talk the smarter it seems. For example by using this event driven application you can swap out the UI much easier. Instead of having a button run an RPC which on result runs code that that one component you have a button trigger an RPC request which fires back to a central event handler which then notifies all interested parties regardless of which component initiated the request. When swapping out the UI for browsers to an iPhone specific version it would be much much easier to just have the exact same handlers and events but swap out the components which render things to the display. In my readings last night I discovered another term for what is outlined in the EventBus idea was coined by Martin Fowler as Event Collaboration http://martinfowler.com/eaaDev/EventCollaboration.html. In the video at 27:3# Ray Ryan shows some MVP code which seems to tie in with this it uses methods like HasClickHandlers to define the interface for the UI. Does anybody know if this is typical of MVP or a flavour cooked up by Google? I am having a hard time finding quality resources describing MVP in the sort of context appropriate to GWT. On Jun 12, 7:39 am, Thomas Broyer t.bro...@gmail.com wrote: On 11 juin, 21:34, Benju b...@fastcastmedia.com wrote: I did not attend Google I/O but as soon as the video Google I/O 2009 - Best Practices for Architecting GWT App (http://www.youtube.com/ watch?v=PDuhR18-EdM) was posted I reviewed it and was a bit confused by the idea of an EventBus. For my part, I was pleased to see it as a best practice, as that's what I'm thinking about for nearly a year (would require a huuge refactoring of our app, so it's still just an idea floating in the air) (I didn't watch the video, just looked at the slides) From what I can tell the idea is that UI widgets requiring data from the server are able to fire off requests for some form of data like void getTransactionsForAccount(Account acct) then at some unknown later time (ms to seconds ussually) when a response comes in from the RPC call the eventbus is what actually directly recives the data and then it is dispatched Well, not necessarily, though yes, that's what they said at Google I/ O. One of the reasons is that there are probably more than a single place where you use that same data in your app (in GMail it could be the list of mails, the unread count for the box and/or label(s), and the conversation view of course). That way, all places are informed, wherever the initial request came from. Client UI: Hey call some RPC method with these parameters, my AsyncCallback is this EventBus thing ...some unknown time passes while the server does magic... Client Event Bus: A response came in of type X/Y/Z I should fire an event to all interested parties Client UI: According to this event I just recieved some of my UI code needs to change A few things are still very hazy for me... 1- What is missing here is when would the Client UI typically subscribe/unsubscribe from the event bus. If this were a desktop application I would simply use weak reference so I would not have to unsubscribe my UI manually to prevent a memory leak. As with any event, I'd subscribe in the onLoad and unsubscribe in the onUnload (would be even better if there was a destructor, so that even when not attached to the DOM, your widget could receive events and enter a dirty state, so that when it is attached again to the DOM it knows if it has to refresh or not) 2- Is there some EventBus code I should be using that already exists in the GWT SDK? Is this the same code that is used for handling widget events like clicking a button? Wasn't the code shown in the slides? (page #73 in the PDF, the event bus is just a HandlerManager (GWT 1.6 and upwards)) 3- Would you typically have one eventbus code for everything? If your event bus is just a HandleManager as in the presentation's sample code, then yes. You would probably have one event bus (instance) for the whole app, but you could also use some kind of HMVC (HMVP?) with component-wide event buses. (I'd rather have a single event bus though, and just use component- specific events) 4- How does this tie in with the MVP pattern?
Incorporating existing jars without modularizing them?
I'm building a proof-of-concept GWT Google Map application that would utilize an existing Hibernate business model for data retrieval. As soon as I reference and use a class from the business model into the application, the AppEngine server complains about not being able to find the source code for that class. If I pull the class into the GWT project, then it begins complaining about all the classes it references. It's a bottomless rabbit hole. I'm working in Eclipse. I have tried including the business model as a project in the build path, as well as referencing it's distributable jar as an external jar. Same result either way. What am I doing wrong? I can't rebuild every external resource as a GWT module. --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Gwt Component Works in Hosted, but not in Tomcat.
I am new to GWT as of 3 weeks. I have a component running in hosted mode. It is a table. It works in hosted mode, but not when I deploy it to tomcat. My other components work, but it is not visible. I tried it in all browsers. I am deploying the compiled javascript. I see the javascript in the web app directory in the right place. Thanks --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: 404 error: gwt server can not be found
Hi How about removing the foward slash before searchService i.e. something like this instead: String moduleRelativeURL = GWT.getModuleBaseURL() + searchService; Had similar problems sometimes, and that worked for me. According to the docs, GWT.getModuleBaseURL() if non-empty, is guaranteed to end with a slash. --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: async code and the callback-chain
Hi Ravi,
thanks for your reply.
You`re right. ts not the async call itself that leads to the
stackoverflow. its because of the callback chain that comes when a
large amount of code depends directly or indirectly on the callback.
supposed i have some simple code like this:
public Value doSomething(Value v){
Value newV = getValue();
//do something with the values
//e.g. add them
return newV.add(v);
}
public Value execute(){
Value v1 = getValue();
Value v2 = doSomething(v1);
Value v3 = doSomesting(v2);
return doSomething(v3);
}
everything is fine with this... but when i decide that getValue()
should request the Value from the Server i have to rewrite the code
to:
private void doSomething(final Value v, final AsyncCallbackValue
callback){
getValue(new AsyncCallbackValue(){
public void onSuccess(Value result) {
//do something with the values
//e.g. add them
callback.onSuccess(result.add(v));
}
public void onFailure(Throwable caught) {
callback.onFailure(caught);
}
});
}
public void execute(final AsyncCallbackValue callback){
getValue(new AsyncCallbackValue(){
public void onSuccess(Value result) {
doSomething(result, new AsyncCallbackValue(){
public void onSuccess(Value result) {
doSomething(result, new
AsyncCallbackValue(){
public void onSuccess(Value
result) {
doSomething(result, new
AsyncCallbackValue(){
public void
onSuccess(Value result) {
callback.onSuccess(result);
}
public void
onFailure(Throwable caught) {
callback.onFailure(caught);
}
});
}
public void onFailure(Throwable
caught) {
callback.onFailure(caught);
}
});
}
public void onFailure(Throwable caught) {
callback.onFailure(caught);
}
});
}
public void onFailure(Throwable caught) {
callback.onFailure(caught);
}
});
}
of course i would not write such code, but it illustrates the problem.
The chain of callbacks gets longer with every call to doSomething.
Imagine it should be called in a loop for 100 times or more ... than a
stackoverflow occures. And even if getValue doesn`t need to aks the
server every time (maybe most values are cached on clientside) the
code must be written in this way. I can reduce the amount of written
code by providing a recursive method for such calls, but i don't find
a way to get rid of the callback chain.
On 12 Jun., 18:06, Ravi ping2r...@gmail.com wrote:
Daniel,
First thing, With Asynchronous call you should never get the Stack
over flow as Asynchronous calls are running in different thread and
your function retursn back before calls finish.
But i think you have genuine problem of asynchronous call
chains...where writing code become too problematic.
I had the same issue and long back i started this discussion that
having synchronous calls will be a good idea too., so that you don't
need to write async callback and leave it up to the developer if they
want to use synchronous calls.
But that time then i had to create a single class with one boolean
variable for each kind of call and correpsonding data.
So whenevr a call finishes i call the function of that class as
MySIngleTonCLass.setLoginCallFNished(true)
MySIngleTonCLass.setUser(User)
MySIngleTonCLass.refresh();
if some other class finishes then i call something like
MySIngleTonCLass.setDataRetrivedCall1(true)
MySIngleTonCLass.setDataRetrived1(someData)
MySIngleTonCLass.refresh();
MySIngleTonCLass.setDataRetrivedCall2(true)
MySIngleTonCLass.setDataRetrived2(someData2)
MySIngleTonCLass.refresh();
and then had to write my login in MySIngletonClass to update UI. ( my
problem area was updating the UI)
so i do something like
if(getLoginCallFNished() and user != null)
Re: GWT in Custome browswer.
http://code.google.com/p/google-web-toolkit/wiki/UsingOOPHM sajil wrote: Hi readers, I want to know how can I run a GWT application in Custom browser in Hosted mode. Here is what exactly I am looking for: I have an application which interacts with the client machine through window.external calls. We are using a IE 6 in a custom container for getting this done. I am working on a project to convert this application to a GWT app and want to use the same container inside the GWT hosted browser. Is it possible to use a custom browser as my hosted browser in GWT? Please let me know. Thanks, Sajil Koroth --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Dynamic ImageBundle selection ?
On 12 juin, 12:36, ciukes ciu...@gmail.com wrote:
My application will by displaying a country flag depending on a locale
selected form list. All the flags are gathered within LocaleFlag
(extends ImageBundle).
I want to be able to get flag image out of LocaleFlag having only a
locale name string in hand.
Er, let's start by saying that language/locale is distinct from
country. Using a flag to represent a locale is hardly a good idea (it
can be, in cases you're actually selecting a region/country and not a
language, for instance have distinct choices for GB and US).
List selection - Locale name string (e.g. uk) - LocaleFlag -
corresponding com.google.gwt.user.client.ui.Image instance.
So far I came up with a bit brute force spaghetti code solution. I
created LocaleName enumeration with getImage():Image abstract method.
Every enum value implements the method to return corresponding image
instance.
[...]
With this enum in hand I can call CountyCode.valueOf(UK).getImage()
and this satisfies my requirement. What I don't like is massive amount
of copy-paste code I have to create ( getImage() implementation have
to be developed for every single enum value).
Can you guys come up with a better solution? Ideally that would be
LocaleFlag.getImage(UK) method that could internally discover,
create and return Image instance.
The best way would be to make a new generator (which would extend or
call the ImageBundleGenerator). In this case, I would personally add
an ImageBundleWithLookup interface (extends ImageBundle) and a
corresponding generator, same as how ConstantsWithLookup relates to
Constants.
Basically, the generator would implement the lookup(String) method
(from ImageBundleWithLookup) as (for example):
private HashMapString,AbstractImagePrototype lookupCache;
public AbstractImagePrototype lookup(String key) {
AbstractImagePrototype ret = null;
if (lookupCache == null) {
lookupCache = new HashMapString, AbstractImagePrototype();
} else {
ret = lookupCache.get(key);
if (ret != null) {
return ret;
}
}
if (UK.equals(key)) {
ret = this.UK();
lookupCache.put(key, ret);
} else if (...) {
...
}
return ret; // would return null if not found
}
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Re: New Event Handling and Composites
On 12 juin, 17:24, Buzzterrier terry.je...@gmail.com wrote:
I am just not getting the new Event handling. I have went over every
example I can find, but it is not clicking. How do you let composite
widgets subscribe to events from other composite widgets? From reading
it sounds like there is a HandlerManager that you register with by
implementing the HasxxHandlers interface, but I cannot piece together
how the Class that creates the event fires it off to the subscribers.
For example I have the following SimpleWidget that extends Composite
that contains a single button. I have another Composite widget that
wishes to be notified when that button is clicked. Can someone fill in
the blanks for me?
(Note I did not attempt to add the event handlers because I do not
want to confuse others who may have the same issue.)
Using ClickHandler and ClickEvent, because it's easier, but if you
look at the code in com.google.gwt.event.logical.shared.* you'll see
how to make a new event for your specific case.
public class SimpleWidget extends Composite{
implements HasClickHandlers
private Button button;
public SimpleWidget() {
FlowPanel fp = new FlowPanel();
button = new Button(Click me);
//With listeners I would create an anonymous inner class
//that fires the click events to registered listeners.
//I don't know how to fire events for handlers
//button.addClickHandler(handler);???
button.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
SimpleWidget.this.fireEvent(event);
}
});
fp.add(button);
initWidget(fp);
}
public HandlerRegistration addClickHandler(ClickHandler handler) {
// do not call addDomHandler as it would sinkEvent too
// with addHandler, only fireEvent can fire the event
this.addHandler(handler, ClickEvent.getType());
}
}
public class DoSomething extends Composite{
public DoSomething() {
FlowPanel fp = new FlowPanel();
SimpleWidget simple = new SimpleWidget();
simple.addClickHandler(my_handler);
fp.add(simple);
initWidget(fp);
}
}
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Re: GWT best Practices - JS Library Wrappers Overlay Types
Ok, so time to look at class structure. In the JS API we have for
example:
com.google.gwt.gdata.client.calendar.CalendarFeed
com.google.gwt.gdata.client.Feed
com.google.gwt.gdata.client.atom.Feed
We won't be able to implement this structure with overlay types
because all methods are final, so for example CalendarFeed can't
override methods of its parent feed classes - it does need to override
methods to specialize the parameter and return types.
Most of the classes in the following namespaces are only used
internally.
com.google.gwt.gdata.client
com.google.gwt.gdata.client.atom
The approach seems to be to not have any class in those namespaces
used directly. For example, the Calendar namespace does not use
com.google.gwt.gdata.client.Who, instead it specializes that class as
com.google.gwt.gdata.client.calendar.CalendarWho and uses that.
So i have the following options:
1. leave the parent classes around, but remove any methods implemented
by child classes (this leaves polymorphism in place, but it's not of
much use, since these classes will be pretty much empty).
2. convert the parent classes to interfaces (this gives us useful
polymorphism)
3. remove these parent classes from the GWT API.
Option 1 is not very useful.
Option 2 works the best but perhaps adds too many interfaces.
Option 3 removes all of these internal classes, which gets rid of
polymorphism. With this approach, the GWT library would just have the
leaves of the GData API's class tree, which would result in a very
thin interface.
I'm leaning towards Option 2 at this time.
Bobby
On Jun 6, 10:45 pm, Bobby bobbysoa...@gmail.com wrote:
The GoogleAccounts module is working well and is pretty close to what
it needs to
be:http://code.google.com/p/gwt-gdata/source/browse/trunk/gdata/src/com/...
I was able to create jUnit test cases that impersonate user
authentication - the GData JS API AuthSub implementation performs
authentication by redirecting to a Google Accounts page, performing
auth and then redirecting back to the referring URL, passing along a
session token which gets stored in a cookie. To make the
authentication work i am setting the cookie directly which has the
same effect but allows the jUnit tests to work
smoothly:http://code.google.com/p/gwt-gdata/source/browse/trunk/gdata/test/com...
Now i can write unit tests for the services which read/write data with
a test account.
I'm debating whether i should split the GWT-Gdata module into multiple
sub modules. For example, instead of having one large GWT module at
com.google.gwt.gdata, have com.google.gwt.gdata be a base module
inherited by specialized modules such as:
com.google.gwt.gdata.calendar
com.google.gwt.gdata.blogger
com.google.gwt.gdata.contacts
com.google.gwt.gdata.finance
...etc
The reason is that, from my experience, you end up using GData to
interact with either Calendar or Documents for example, rather than
all of the GData systems, so it seems more natural to have a module
per GData system.
Bobby
On May 30, 10:21 pm, Bobby bobbysoa...@gmail.com wrote:
I eliminated the Date errors by making use of a
DateHelper:http://code.google.com/p/gwt-gdata/source/browse/trunk/gdata/src/com/...
Here's how i'm using
it:http://code.google.com/p/gwt-gdata/source/browse/trunk/gdata/src/com/...
I convert Dates to milliseconds since 1970 before passing them between
Java and JS.
Bobby
On May 30, 5:04 pm, Eric Ayers zun...@google.com wrote:
I don't think GWT does anything useful when you pass a Java Date
object into JSNI. You may want to pass the # of milliseconds since
1970 instead.
On Sat, May 30, 2009 at 2:03 AM, Bobby bobbysoa...@gmail.com wrote:
I'm seeing some weird behavior whenever java.util.Date is used. The
following DateTime class in GData wraps around a date:
http://code.google.com/p/gwt-gdata/source/browse/trunk/gdata/src/com/...
The newInstance method receives a java.util.Date.:
public static native DateTime newInstance(Date date, boolean
dateOnly) /*-{
return new $wnd.google.gdata.DateTime(
date,
dateOnly
);
}-*/;
Whenever i call this method it fails. If i replace it with the
following, then it works:
public static native DateTime newInstance(Date date, boolean
dateOnly) /*-{
return new $wnd.google.gdata.DateTime(
new Date(), //pass static JS date instead
dateOnly
);
}-*/;
So the date object passed in from Java causes a failure whereas a
regular JS date doesn't. I looked at the Date parameter passed in from
Java and it looked like a regular JS date - when printed, a regular
date string is displayed.
In web mode jUnit hangs on newInstance(new Date(), true/false) because
a JS exception occurs. In hosted mode the following exception is
thrown:
[WARN] Malformed JSNI reference 'getFullYear'; expect subsequent
failures
Re: Passing bag of Serializable objects to RPC
Ah, I figured out what I was doing wrong. I am using GXT, and my
pojo/bean was being used as a runtime generated class that implemented
gxt's BeanModel. My ignorance on exactly how this worked prevented me
from refactoring correctly. I had been trying to make a genericized
form component, extending a FieldSet, and now it works like this:
public class SelectorFieldSetT extends BeanModel, B extends Serializable
extends FieldSet {
private GridT grid;
private CheckBoxSelectionModelT cbsm;
public SelectorFieldSet(String heading, ListColumnConfig
columnConfigs,
ListStoreT storeIn) {..make a grid, add buttons,
etc..}
...bunch of stuff...
public ArrayListB getSelectionList() {
final ArrayListB a = new ArrayListB();
for (T model : grid.getSelectionModel().getSelectedItems()) {
if (model != null) {
a.add((B) model.getBean());
}
}
return a;
}
}
So now I have a builder like this:
public static SelectorFieldSetBeanModel, MyBean buildMyBeanSelector() {
...do the Rpc Proxy / list loader stuff
...set up the columns
return new SelectorFieldSetBeanModel, MyBean(Pick My Beans!,
configs, store);
}
Then in my onSubmit() method, I can do something like this:
ReportPojo report = new ReportPojo(TheNameOfTheReport);
report.set(selectedMyBeans, myBeanSelector.getSelectionList());
ReportServiceAsync.RPC.runReport(report, callback);
On Thu, Jun 11, 2009 at 2:15 PM, Daniel Jueteamp...@gmail.com wrote:
Hi, I've read some past emails on this subject, but I want to know if
anyone has a best practice for this.
Lets say I have MyService(HashMapString,Serializable reportBag) .
I've read it's advisable to narrow down the Serializable to a type
that has a smaller set of implementations, such as using GXT2's
serializable BeanModel or making up a marker like SerializaleDTO (or
for that matter, the old IsSerializable) I'd be willing to do this,
except I'd like to put ArrayListBeanModel in my
HashMapString,Serializable reportBag
When I start stuffing things in my bag from widgets like selections
from grids, etc, these my come back as ArrayListBeanModel.
This means if I want to do
reportBag.put(StuffFromWidget1,myGrid.getSelection());
it won't work unless myGrid.getSelection() is null.
I tried wrapping ArrayListBeanModel in a new implementation of
BeanModel, but it still did not work (same error, even after
cleaning).
I guess what I'm looking for is a way to sent an object with an
arbitrary number and combination of beans and lists of beans, where a
bean is a Serializable object. I'd prefer to use some sort of map, so
I can look up the objects in my service impl.
i.e.
reportBag = new HashMapString, Serializable();
reportBag.put(SomeText,JustText);
reportBag.put(SomeBean,imaSerializableBean);
reportBag.put(ListOBeans,thatListOBeansFromAWidget);
reportBag.put(OneMoreBean,forGoodMeasureBean);
etc etc
then
MyServiceAsync.RPC.runReport(reportBag, callback);
Is this possible?
I know topics on serialization get hashed and rehashed here and I sure
don't want to bother people with noob questions. I must have read 40
threads on it today! Now I'm off to google code search to try and
find something in the wild...
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How can I add a MouseOutHandler to a FlexTable cell?
Well, the subject says everything, I would like to know how can I add
a MouseOutHandler to a FlexTable cell. I tried a lot of things but
none of them with success. I tried a wrap class:
private class FlexTableTd extends Widget implements HasMouseOutHandlers,
HasMouseOverHandlers {
public FlexTableTd(Element element) {
setElement(element);
}
public HandlerRegistration addMouseOutHandler(MouseOutHandler handler) {
return addHandler(handler, MouseOutEvent.getType());
}
public HandlerRegistration
addMouseOverHandler(MouseOverHandler handler) {
return addHandler(handler, MouseOverEvent.getType());
}
}
and I tried
FlexTableTd td = new FlexTableTd(table.getFlexCellFormatter().getElement(0, 0));
td.addMouseOverHandler(...);
but it doesn't work.
--
Eduardo S. Nunes
http://e-nunes.com.br
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no source available
Hi Guys I created an application, it starts and shows the two standard windows but there are some errors: No source is available for type org.timepedia.client.browser.Chronoscope; did you forget to inherit required module ? The answer is no - I didn't as my HelloChart.gwt.xml file contains: inherits name='org.timepedia.chronoscope.Chronoscope'/ Also I imported Chronoscope.jar which contains org.timepedia.client.browser.Chronoscope.class But why is it looking for source ? I'm not sure where the problem is. Can you help please ? Regards Peter --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Guice 2.0 servlet example
I'd try asking your question on the Google Guice group:
http://groups.google.com/group/google-guice?pli=1
--
Arthur Kalmenson
On Wed, Jun 10, 2009 at 2:40 AM, Dariuszdarius...@gmail.com wrote:
I'm trying to get the example of guice 2.0 running, but I can't figure
out why it's not working. I try to do the same thing as on this page:
http://code.google.com/p/google-guice/wiki/ServletModule
Here is what I got:
web.xml
web-app id=WebApp_ID version=2.4 xmlns=http://java.sun.com/xml/
ns/j2ee xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xsi:schemaLocation=http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd;
display-nameguicy/display-name
filter
filter-nameguiceFilter/filter-name
filter-classcom.google.inject.servlet.GuiceFilter/filter-class
/filter
filter-mapping
filter-nameguiceFilter/filter-name
url-pattern/*/url-pattern
/filter-mapping
listener
listener-classcom.test.MyGuiceServletConfig/listener-class
/listener
/web-app
MyGuiceServletConfig.java
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.servlet.GuiceServletContextListener;
public class MyGuiceServletConfig extends GuiceServletContextListener
{
�...@override
protected Injector getInjector() {
return Guice.createInjector( new MyServletModule() );
}
}
MyServletModule.java
import com.google.inject.servlet.ServletModule;
public class MyServletModule extends ServletModule {
�...@override
protected void configureServlets() {
serve(/*).with( MyServlet.class );
}
}
MyServlet.java
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.google.inject.Singleton;
@Singleton
public class MyServlet extends HttpServlet {
�...@override
public void doGet(HttpServletRequest req, HttpServletResponse
resp)
throws ServletException, IOException {
resp.setContentType(text/html);
PrintWriter writer = resp.getWriter();
writer.printf(h1Welcome to the application!/h1 );
System.out.println( ...testing );
resp.setStatus( HttpServletResponse.SC_OK );
}
/**
* Process the HTTP Post request
*/
public void doPost( HttpServletRequest request, HttpServletResponse
response ) throws ServletException, IOException {
System.out.println( inside MyServlet class );
}
}
I'm not getting anywhere and I don't have anything in my log file. I
would really appreciate any help. I think th approach of Guice is
excellent and would love to use it for my applications.
Thanks a lot in advance!
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Re: can't run javax adn org/w3c library and bigDecimal in gwt - 1.6 project
Hi Linda, The reason why you get the import javax.xml cannot be resolved and other problematic import resolutions is because these are not supported in the GWT emulated JRE (see doc link below). As the GWT code you right gets cross-compiled into JavaScript that will run in the browser, there is no meaningful equivalent for the types you imported in the JS world. GWT Emulated JRE: http://code.google.com/webtoolkit/doc/1.6/RefJreEmulation.html However, it seems like for the types of things that you wanted to do with those packages (work directly with the DOM, you can use the equivalent DOM and XML parsing APIs linked below. DOM API: http://google-web-toolkit.googlecode.com/svn/javadoc/1.6/com/google/gwt/user/client/DOM.html XMLParser API: http://google-web-toolkit.googlecode.com/svn/javadoc/1.6/com/google/gwt/xml/client/XMLParser.html As for the gwt-math project supporting doubleValue() on the BigDecimal type, I don't think the team working on the project has had a chance to get around to adding support for it just yet (see Issue #9 below on the gwt-math issue tracker). Issue #9: http://code.google.com/p/gwt-math/issues/detail?id=9 Hope that helps, -Sumit Chandel On Mon, Jun 8, 2009 at 12:22 PM, Linda linda.ctr.c...@faa.gov wrote: I and using eclipse to compile my gwt - 1.6 project. From Eclipse I do not get any compilation errors. When I run my web application, I get: The import javax.xml cannot be resolved The import org.w3c cannot be resolved And Something about can't regonize BigDecimal as a type. I downloaded gwt-math.jar (2.0), but it does not support any double functions inside Bigdecimal. For example, I get: The method doubleValue() is undefined for the type BigDecimal. Any idea I can solve these issues? Thanks. - Linda --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: gwt-maven and web service
Hello Netty, In order for classes to be serializable, their source code needs to be available and should be compiled by the GWT compiler. Since the Service class is not a white listed class, you'll have to add it to your source and use the super-source tag in your GWT module to get it compiled. See the Overriding one package implementation with another section here: http://code.google.com/webtoolkit/doc/1.6/DevGuideOrganizingProjects.html#DevGuideModuleXml -- Arthur Kalmenson On Fri, Jun 12, 2009 at 10:53 AM, netnetty...@gmail.com wrote: Hi all, I'm trying to call and get response from a wsdl service. When I compile the UI layer with maven, it throws this error: com.google.gwt.user.client.rpc.SerializationException: Type 'javax.xml.ws.WebServiceException' was not included in the set of types which can be serialized by this SerializationPolicy or its Class object could not be loaded. For security purposes, this type will not be serialized. I tried to understand the error...but I dont! I found that the class 'javax.xml.ws.WebServiceException' is implemented java.oi.Serializer but I dont know why GWTSerializer find this call non serializable. Actually, the first error I got was that Maven couldnt find the class javax.xml.ws.Service, so I added the dependency of jaxws-api.jar into pom.xml. After that, I compiled the project and the above error was thrown. Please help! Netty --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: no source available
The inherits tag needs to point to the .gwt.xml module file, not a class file. Looking at the Chronoscope library, it looks like Chronoscope.gwt.xml is actually in org.timepedia.chronoscope.Chronoscope so your inherits tag should look as follows: inherits name='org.timepedia.chronoscope.Chronoscope'/ Regards, -- Arthur Kalmenson On Fri, Jun 12, 2009 at 2:24 PM, Peter Kirklewskipkirklew...@gabaedevelopment.com wrote: Hi Guys I created an application, it starts and shows the two standard windows but there are some errors: No source is available for type org.timepedia.client.browser.Chronoscope; did you forget to inherit required module ? The answer is no - I didn't as my HelloChart.gwt.xml file contains: inherits name='org.timepedia.chronoscope.Chronoscope'/ Also I imported Chronoscope.jar which contains org.timepedia.client.browser.Chronoscope.class But why is it looking for source ? I'm not sure where the problem is. Can you help please ? Regards Peter --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Key events for scrolltable
Hi vduong, The plan for the most used and matured widgets in the incubator is to eventually have them graduate to GWT proper. In the case of the ScrollTable, part of that transition should involve bringing it into the new GWT 1.6 event architecture and having it implement some of the handlers that make sense for a ScrollTable (e.g. key handlers). There isn't an issue created for this in the Issue Tracker just yet, so I invite you to report it so that we can get it tracked and so that you will be emailed updates on the issue. GWT Issue Tracker: http://code.google.com/p/google-web-toolkit/issues/list Cheers, -Sumit Chandel On Mon, Jun 8, 2009 at 12:57 PM, vduong vdu...@hybridprojects.com wrote: Hi all, I'm trying to listen for keyboard events (specifically key down) from a scrolltable to enable selection of a cell and/or row and moving that selection around using the arrow keys. Currently, we have this working just by putting the entire scrolltable in a focus panel and adding a KeyDownHandler to that focus panel, but then we have to explicitly set the focus back on to the focus panel anytime it loses focus (e.g. for popups, cell editors), in order to begin handling the key events again. Is there any better way to listen for key events on the table? I tried sinkEvents(Event.ONKEYDOWN) from our subclass of PagingScrollTable, but my class doesn't seem to be getting the ONKEYDOWN events in onBrowserEvent. Any suggestions? Thanks! --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: New Event Handling and Composites
Thx Thomas I really appreciate this.
That worked, but when I handle the event in DoSomething, I need to
know what button was clicked.
e.g.
public class DoSomething extends Composite implements ClickHandler{
private SimpleWidget simpleWidget;
public DoSomething() {
FlowPanel fp = new FlowPanel();
simple = new SimpleWidget();
simple.addClickHandler(this);
fp.add(simpleWidget);
initWidget(fp);
}
public void onClick(ClickEvent event) {
if (event.getSource() == simple.getButton()) {
//do something
}else if(event.getSource() == smiple.getSomeOtherButton(){
//do something else.
}
}
}
So in the onClick handler event.getSource() sources SimpleWidget, but
I really need to know what button was clicked.
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redirect without loosing state
Hi guys. I'm not quite new to GWT, but I've recently faced quite frustrating problem, that I'm unable to solve alone. I have requirement to integrate my webapp with single sign on system which is HTTP based. So whilst starting GWT app I have redirect user to different URL, check retrieved URL and then continue to webapp GUI. I spent some time figuring out the way to persist state of app before redirect but all measures that I found (mainly Window.Location methods) are erasing GWT state. Is there a way to redirect and then go back to current GWT state? --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: How can I add a MouseOutHandler to a FlexTable cell?
Try this instead.
addMouseOverHandler(MouseOverHandler handler) {
return addDomHandler(handler, MouseOverEvent.getType());
}
On Jun 12, 12:52 pm, Eduardo Nunes esnu...@gmail.com wrote:
Well, the subject says everything, I would like to know how can I add
a MouseOutHandler to a FlexTable cell. I tried a lot of things but
none of them with success. I tried a wrap class:
private class FlexTableTd extends Widget implements HasMouseOutHandlers,
HasMouseOverHandlers {
public FlexTableTd(Element element) {
setElement(element);
}
public HandlerRegistration addMouseOutHandler(MouseOutHandler
handler) {
return addHandler(handler, MouseOutEvent.getType());
}
public HandlerRegistration
addMouseOverHandler(MouseOverHandler handler) {
return addHandler(handler, MouseOverEvent.getType());
}
}
and I tried
FlexTableTd td = new FlexTableTd(table.getFlexCellFormatter().getElement(0,
0));
td.addMouseOverHandler(...);
but it doesn't work.
--
Eduardo S. Nuneshttp://e-nunes.com.br
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Re: GWT in Eclipse spontaneously stopped working
What JVM is your project using? Can you look at your project properties and take a look? On Fri, Jun 12, 2009 at 2:33 AM, skeemer skee...@gmail.com wrote: I'm running Leopard with Eclipse 3.4.2 and GWT 1.6.4. I was able create the first Getting Started app and everything worked fine. I then started creating the StockMarket app from the tutorial and now hosted mode won't do anything on either project or a brand new empty one. There is a crashlog being generated, but I have not clue what it means. Process: java [9015] Path:/System/Library/Frameworks/JavaVM.framework/Versions/ 1.5.0/Home/bin/java Identifier: java Version: ??? (???) Code Type: X86-64 (Native) Parent Process: eclipse [8909] Date/Time: 2009-06-11 23:18:26.927 -0700 OS Version: Mac OS X 10.5.7 (9J61) Report Version: 6 Anonymous UUID: CEE66248-AC27-40A4-B86B-B4DBBAD18CA7 Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: 0x000d, 0x Crashed Thread: 0 Thread 0 Crashed: 0 ??? 0x0001000111c1 0 + 4295037377 1 ??? 0x00010001276f 0 + 4295042927 2 ??? 0x000100012a1c 0 + 4295043612 3 ??? 0x00010001104d 0 + 4295037005 Thread 0 crashed with X86 Thread State (64-bit): rax: 0x0041 rbx: 0x7fff5fbff5d8 rcx: 0x rdx: 0x0014 rdi: 0x000100014708 rsi: 0x2f7972617262694c rbp: 0x7fff5fbff420 rsp: 0x7fff5fbff420 r8: 0x910c55f2 r9: 0x r10: 0x r11: 0x r12: 0x0014 r13: 0x000100014708 r14: 0x0015 r15: 0x rip: 0x0001000111c1 rfl: 0x00010293 cr2: 0x000100014708 Binary Images: 0x7fff5fc0 - 0x7fff5fc2e643 dyld 97.1 (???) b40847f1ce1ba2ed13837aeccbf19284 /usr/lib/dyld Thanks, Leo --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: How can I add a MouseOutHandler to a FlexTable cell?
I already tried it, but it didn't work. I found a solution, but a very ugly one:
private class FlexTableTd extends UIObject implements HasMouseOutHandlers,
HasMouseOverHandlers, EventListener {
public FlexTableTd(Element element) {
this.setElement(element);
DOM.setEventListener(this.getElement(), this);
}
public HandlerRegistration addMouseOutHandler(MouseOutHandler handler) {
this.sinkEvents(Event.ONMOUSEOUT);
return
ensureHandlers().addHandler(MouseOutEvent.getType(), handler);
}
public HandlerRegistration
addMouseOverHandler(MouseOverHandler handler) {
this.sinkEvents(Event.ONMOUSEOVER);
return
ensureHandlers().addHandler(MouseOverEvent.getType(), handler);
}
public void fireEvent(GwtEvent? event) {
ensureHandlers().fireEvent(event);
}
public void onBrowserEvent(Event event) {
switch (DOM.eventGetType(event)) {
case Event.ONMOUSEOVER:
case Event.ONMOUSEOUT:
Element related = event.getRelatedTarget();
if (related != null getElement().isOrHasChild(related)) {
return;
}
break;
}
DomEvent.fireNativeEvent(event, this, this.getElement());
}
private HandlerManager handlerManager;
HandlerManager ensureHandlers() {
return handlerManager == null ? handlerManager = new
HandlerManager(this)
: handlerManager;
}
}
On Fri, Jun 12, 2009 at 4:46 PM, matthew jonesbigboxe...@gmail.com wrote:
Try this instead.
addMouseOverHandler(MouseOverHandler handler) {
return addDomHandler(handler, MouseOverEvent.getType());
}
On Jun 12, 12:52 pm, Eduardo Nunes esnu...@gmail.com wrote:
Well, the subject says everything, I would like to know how can I add
a MouseOutHandler to a FlexTable cell. I tried a lot of things but
none of them with success. I tried a wrap class:
private class FlexTableTd extends Widget implements HasMouseOutHandlers,
HasMouseOverHandlers {
public FlexTableTd(Element element) {
setElement(element);
}
public HandlerRegistration addMouseOutHandler(MouseOutHandler
handler) {
return addHandler(handler, MouseOutEvent.getType());
}
public HandlerRegistration
addMouseOverHandler(MouseOverHandler handler) {
return addHandler(handler, MouseOverEvent.getType());
}
}
and I tried
FlexTableTd td = new FlexTableTd(table.getFlexCellFormatter().getElement(0,
0));
td.addMouseOverHandler(...);
but it doesn't work.
--
Eduardo S. Nuneshttp://e-nunes.com.br
--
Eduardo S. Nunes
http://e-nunes.com.br
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Re: ClassNotFoundException when have reference to another project
Hi, Good question! This is a known issue right now. Check this thread out for a discussion: http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/951499c5773693c9 Post back here if you have any other questions. Rajeev On Fri, Jun 12, 2009 at 9:47 AM, ailinykh ailin...@gmail.com wrote: Hello everybody! I have simple GWT project. In servlet implementation I use class from another Java project (it is regular class library). Both of them are eclipse projects. Main project has reference to library project, I can compile. But when I run it I get ClassNotFoundException. If I export my library to jar file and put that jar into WEB-INF/lib everything is fine. But my library project is under development, I modify it frequently and wish my main project picks up classes not jar file. I tried to add library project to runtime class path, it helps when run application locally, but if I upload application to google apps engine I face the same problem. What is the best way to handle this situation? Thank you, Andrey --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Gwt Component Works in Hosted, but not in Tomcat.
What version of GWT are you using? What type of error are you seeing? On Fri, Jun 12, 2009 at 12:20 PM, Patrick www...@gmail.com wrote: I am new to GWT as of 3 weeks. I have a component running in hosted mode. It is a table. It works in hosted mode, but not when I deploy it to tomcat. My other components work, but it is not visible. I tried it in all browsers. I am deploying the compiled javascript. I see the javascript in the web app directory in the right place. Thanks --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: New Event Handling and Composites
So tracing the fireEvent method, I found that the source does indeed
reference the button, but in HandlerManager, the source gets changed
to SimpleWidget.
Object oldSource = event.getSource(); //event.getSouce is button
event.setSource(source); //here source is SimpleWidget
Not sure why.
the full method.
/**
* Fires the given event to the handlers listening to the event's
type.
*
* Note, any subclass should be very careful about overriding this
method, as
* adds/removes of handlers will not be safe except within this
* implementation.
*
* @param event the event
*/
public void fireEvent(GwtEvent? event) {
// If it not live we should revive it.
if (!event.isLive()) {
event.revive();
}
Object oldSource = event.getSource();
event.setSource(source);
try {
firingDepth++;
registry.fireEvent(event, isReverseOrder);
} finally {
firingDepth--;
if (firingDepth == 0) {
handleQueuedAddsAndRemoves();
}
}
if (oldSource == null) {
// This was my event, so I should kill it now that I'm done.
event.kill();
} else {
// Restoring the source for the next handler to use.
event.setSource(oldSource);
}
}
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Re: Preventing JavaScript Injection cient/server side solutions
On 06/11/2009 09:03 PM, Shawn Brown wrote: It's a good question, but it's not really GWT related. Sure it is. The OP asked: 'I am wondering if anybody has attempted to intercept JS injection on the server side by scanning RPC calls' My interpretation of the phrase on the server side obviously does not match yours. --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Preventing JavaScript Injection cient/server side solutions
On 06/12/2009 12:45 AM, tamsler wrote: Evaluating user input on the client side and checking for script, etc. tags is a good practice, however, there are ways to bypass such input validation. So the next best line of defense is to validate/re- validate on the server side where the GWT RPC call terminates. I am wondering what solutions exists at that end. -- Thomas Such solutions are probably going to be toolkit-specific, in the sense that such a toolkit may have a routines available to sanitize whatever arrives from the net and whatever you send to the client. If you are using such a toolkit, does that provide anything? Otherwise, you'll have to roll your own solution. A search on the keywords mentioned in your subject line may reveal some useful Java code (assuming that's what's executing on the server). To reiterate, GWT is a client-side solution; client-side code is the focus of this list. Obviously, a server's involved since the code must originate there. However, the details of the other side of an RPC are an exercise left to the reader. On Jun 11, 5:20�pm, Jeff Chimenejchim...@gmail.com wrote: On 06/11/2009 04:18 PM, tamsler wrote: I am trying to figure out what the best way is to handle JavaScript injection cases. Since any client side input validation handling doesn't truly prevent one from injecting JS such as using tools like Firebug to re-post RPC calls etc. I am wondering if anybody has attempted to intercept JS injection on the server side by scanning RPC calls . I could imagine using a servlet filter to do this or or some other way. Any ideas/feeback is greatly appreciated. It's a good question, but it's not really GWT related. You're talking about server-side code. The �JS code generated by GWT executes in the browser. I may be completely missing your point, but perhaps these articles may be apropos:http://code.google.com/webtoolkit/articles/using_gwt_for_json_mashups... andhttp://code.google.com/webtoolkit/articles/put_your_gwt_app_on_facebo... --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: New Event Handling and Composites
On 12 juin, 21:15, Buzzterrier terry.je...@gmail.com wrote:
Thx Thomas I really appreciate this.
That worked, but when I handle the event in DoSomething, I need to
know what button was clicked.
So you actually need to access an HasClickHandlers from the
SimpleWidget, not make SimpleWidget a HasClickHandlers.
E.g.
public class SimpleWidget extends Composite {
private Button b1;
private Button b2;
...
public HasClickHandlers getButton1() { return b1; }
public HasClickHandlers getButton2() { return b2; }
}
Then in DoSomething: simpleWidget.getButton1.addClickHandler(...);
Or probably you rather need a HasSelectionHandler or something like
that (have a look into com.google.gwt.event.logical.shared), and in
SimpleWidget, register a ClickHandler on each button to fireEvent a
new SelectionEvent() (instead of fireEvent(event) as in my previous
proposal).
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Re: How can I add a MouseOutHandler to a FlexTable cell?
Hi Eduardo,
Here's your solution:
public class BocaJrsTable extends FlexTable implements
HasMouseOutHandlers {
private HandlerManager manager = new HandlerManager(this);
public BocaJrsTable(){
super();
addDomHandler(new MouseOutHandler() {
@Override
public void onMouseOut(MouseOutEvent event) {
fireEvent(event);
}
}, MouseOutEvent.getType());
}
@Override
public HandlerRegistration addMouseOutHandler(MouseOutHandler
handler) {
return manager.addHandler(MouseOutEvent.getType(), handler);
}
@Override
public void fireEvent(GwtEvent? event) {
manager.fireEvent(event);
}
}
Good luck !
On Jun 12, 5:40 pm, Eduardo Nunes esnu...@gmail.com wrote:
I already tried it, but it didn't work. I found a solution, but a very ugly
one:
private class FlexTableTd extends UIObject implements HasMouseOutHandlers,
HasMouseOverHandlers, EventListener {
public FlexTableTd(Element element) {
this.setElement(element);
DOM.setEventListener(this.getElement(), this);
}
public HandlerRegistration addMouseOutHandler(MouseOutHandler
handler) {
this.sinkEvents(Event.ONMOUSEOUT);
return
ensureHandlers().addHandler(MouseOutEvent.getType(), handler);
}
public HandlerRegistration
addMouseOverHandler(MouseOverHandler handler) {
this.sinkEvents(Event.ONMOUSEOVER);
return
ensureHandlers().addHandler(MouseOverEvent.getType(), handler);
}
public void fireEvent(GwtEvent? event) {
ensureHandlers().fireEvent(event);
}
public void onBrowserEvent(Event event) {
switch (DOM.eventGetType(event)) {
case Event.ONMOUSEOVER:
case Event.ONMOUSEOUT:
Element related = event.getRelatedTarget();
if (related != null
getElement().isOrHasChild(related)) {
return;
}
break;
}
DomEvent.fireNativeEvent(event, this, this.getElement());
}
private HandlerManager handlerManager;
HandlerManager ensureHandlers() {
return handlerManager == null ? handlerManager = new
HandlerManager(this)
: handlerManager;
}
}
On Fri, Jun 12, 2009 at 4:46 PM, matthew jonesbigboxe...@gmail.com wrote:
Try this instead.
addMouseOverHandler(MouseOverHandler handler) {
return addDomHandler(handler, MouseOverEvent.getType());
}
On Jun 12, 12:52 pm, Eduardo Nunes esnu...@gmail.com wrote:
Well, the subject says everything, I would like to know how can I add
a MouseOutHandler to a FlexTable cell. I tried a lot of things but
none of them with success. I tried a wrap class:
private class FlexTableTd extends Widget implements
HasMouseOutHandlers,
HasMouseOverHandlers {
public FlexTableTd(Element element) {
setElement(element);
}
public HandlerRegistration addMouseOutHandler(MouseOutHandler
handler) {
return addHandler(handler, MouseOutEvent.getType());
}
public HandlerRegistration
addMouseOverHandler(MouseOverHandler handler) {
return addHandler(handler, MouseOverEvent.getType());
}
}
and I tried
FlexTableTd td = new
FlexTableTd(table.getFlexCellFormatter().getElement(0, 0));
td.addMouseOverHandler(...);
but it doesn't work.
--
Eduardo S. Nuneshttp://e-nunes.com.br
--
Eduardo S. Nuneshttp://e-nunes.com.br
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3rd parties and GWT-RPC?
Hi, I'm wondering what options we have when we want a 3rd party to talk to our server. For example, I'm using GWT RPC as-is. So my clients (browsers) talk to the server perfectly, works great. Now I'd like to make an iPhone app (an actual objective-c compiled app) that also uses my web service. Normally if I were using PHP, I'd just call the PHP scripts via a url in the objective-c application. This does not seem possible when using GWT-RPC. Is there any way to do it? I know I can just let the user use mobile safari to access my web app, but would prefer a thick client. Thanks for any suggestions --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
[gwt-contrib] Comment on OverlayTypes in google-web-toolkit
Comment by bobbysoares: Scottb, I was suggesting for example having new MyObject(...) be replaced with MyObject.newInstance(...) automatically (where newInstance would be a method supplied by the developer which returns an instance of the class, possibly natively, after calling the JS constructor). Maybe it's not a great solution. Rjrjr, the non-JSO implementation would add overhead though, right? That's what i wanted to avoid, without giving up constructors, if possible. If not, i'll still live. For more information: http://code.google.com/p/google-web-toolkit/wiki/OverlayTypes --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] [google-web-toolkit commit] r5549 - Remove stale branches.
Author: b...@google.com Date: Fri Jun 12 12:16:17 2009 New Revision: 5549 Removed: changes/bobv/clientbundle/ changes/bobv/derpc/ Log: Remove stale branches. --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] [google-web-toolkit commit] r5550 - Create a branch to publish derpc test code.
Author: b...@google.com Date: Fri Jun 12 12:26:45 2009 New Revision: 5550 Added: changes/bobv/derpc/ (props changed) - copied from r5549, /trunk/ Log: Create a branch to publish derpc test code. --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] Allow generators fast access to source path resources
Reviewers: bobv, jat, Description: This patch adds a new method to GeneratorContext that makes a new ResourceOracle available specifically to generators. This ResourceOracle contains all of the resources on the classpath that are associated with source files on the sourcepath. Certain generators, such as i18n, can use this to operate much more quickly than doing lots of lookups through ClassLoader.getResourceAsStream(). Please review this at http://gwt-code-reviews.appspot.com/40801 Affected files: dev/core/src/com/google/gwt/core/ext/GeneratorContext.java dev/core/src/com/google/gwt/dev/cfg/ModuleDef.java dev/core/src/com/google/gwt/dev/resource/impl/ResourceOracleImpl.java dev/core/src/com/google/gwt/dev/shell/StandardGeneratorContext.java dev/core/test/com/google/gwt/dev/shell/StandardGeneratorContextTest.java user/src/com/google/gwt/i18n/rebind/CachedGeneratorContext.java --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] Re: Allow generators fast access to source path resources
LGTM. http://gwt-code-reviews.appspot.com/40801/diff/1/2 File dev/core/src/com/google/gwt/core/ext/GeneratorContext.java (right): http://gwt-code-reviews.appspot.com/40801/diff/1/2#newcode76 Line 76: * being compiled. containing all resources in the module's source paths That it's from the system classpath is irrelevant. What about super-source? http://gwt-code-reviews.appspot.com/40801 --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] Re: Allow generators fast access to source path resources
http://gwt-code-reviews.appspot.com/40801/diff/1/2 File dev/core/src/com/google/gwt/core/ext/GeneratorContext.java (right): http://gwt-code-reviews.appspot.com/40801/diff/1/2#newcode76 Line 76: * being compiled. Will clarify doc. http://gwt-code-reviews.appspot.com/40801 --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] [google-web-toolkit commit] r5552 - Adds a new method to GeneratorContext that makes a new ResourceOracle available specifica...
Author: sco...@google.com
Date: Fri Jun 12 13:56:52 2009
New Revision: 5552
Modified:
trunk/dev/core/src/com/google/gwt/core/ext/GeneratorContext.java
trunk/dev/core/src/com/google/gwt/dev/cfg/ModuleDef.java
trunk/dev/core/src/com/google/gwt/dev/cfg/PublicOracle.java
trunk/dev/core/src/com/google/gwt/dev/resource/impl/ResourceOracleImpl.java
trunk/dev/core/src/com/google/gwt/dev/shell/StandardGeneratorContext.java
trunk/dev/core/test/com/google/gwt/dev/shell/StandardGeneratorContextTest.java
trunk/user/src/com/google/gwt/i18n/rebind/CachedGeneratorContext.java
Log:
Adds a new method to GeneratorContext that makes a new ResourceOracle
available specifically to generators.
This ResourceOracle contains all of the resources on the classpath that are
associated with source files on the sourcepath. Certain generators, such
as i18n, can use this to operate much more quickly than doing lots of
lookups through ClassLoader.getResourceAsStream().
Review by: bobv
Modified: trunk/dev/core/src/com/google/gwt/core/ext/GeneratorContext.java
==
--- trunk/dev/core/src/com/google/gwt/core/ext/GeneratorContext.java
(original)
+++ trunk/dev/core/src/com/google/gwt/core/ext/GeneratorContext.javaFri
Jun 12 13:56:52 2009
@@ -18,6 +18,7 @@
import com.google.gwt.core.ext.linker.Artifact;
import com.google.gwt.core.ext.linker.GeneratedResource;
import com.google.gwt.core.ext.typeinfo.TypeOracle;
+import com.google.gwt.dev.resource.ResourceOracle;
import java.io.OutputStream;
import java.io.PrintWriter;
@@ -68,6 +69,17 @@
* use the property oracle to query deferred binding properties.
*/
PropertyOracle getPropertyOracle();
+
+ /**
+ * Returns a resource oracle containing all resources that are mapped
into the
+ * module's source (or super-source) paths. Conceptually, this resource
oracle
+ * exposes resources which are siblings to GWT-compatible Java
classes. For
+ * example, if the module includes
codecom.google.gwt.core.client/code
+ * as a source package, then a resource at
+ * codecom/google/gwt/core/client/Foo.properties/code would be
exposed
+ * by this resource oracle.
+ */
+ ResourceOracle getResourcesOracle();
/**
* Gets the type oracle for the current generator context. Generators
can use
Modified: trunk/dev/core/src/com/google/gwt/dev/cfg/ModuleDef.java
==
--- trunk/dev/core/src/com/google/gwt/dev/cfg/ModuleDef.java(original)
+++ trunk/dev/core/src/com/google/gwt/dev/cfg/ModuleDef.javaFri Jun 12
13:56:52 2009
@@ -23,6 +23,7 @@
import com.google.gwt.core.ext.typeinfo.TypeOracle;
import com.google.gwt.dev.javac.CompilationState;
import com.google.gwt.dev.resource.Resource;
+import com.google.gwt.dev.resource.ResourceOracle;
import com.google.gwt.dev.resource.impl.DefaultFilters;
import com.google.gwt.dev.resource.impl.PathPrefix;
import com.google.gwt.dev.resource.impl.PathPrefixSet;
@@ -48,6 +49,7 @@
* Represents a module specification. In principle, this could be built
without
* XML for unit tests.
*/
+...@suppresswarnings(deprecation)
public class ModuleDef implements PublicOracle {
private static final ComparatorMap.EntryString, ? REV_NAME_CMP = new
ComparatorMap.EntryString, ?() {
@@ -82,6 +84,8 @@
private ResourceOracleImpl lazyPublicOracle;
+ private ResourceOracleImpl lazyResourcesOracle;
+
private ResourceOracleImpl lazySourceOracle;
private final MapString, Class? extends Linker linkerTypesByName =
new LinkedHashMapString, Class? extends Linker();
@@ -277,6 +281,21 @@
return properties;
}
+ public ResourceOracle getResourcesOracle() {
+if (lazyResourcesOracle == null) {
+ lazyResourcesOracle = new ResourceOracleImpl(TreeLogger.NULL);
+ PathPrefixSet pathPrefixes = lazySourceOracle.getPathPrefixes();
+ PathPrefixSet newPathPrefixes = new PathPrefixSet();
+ for (PathPrefix pathPrefix : pathPrefixes.values()) {
+newPathPrefixes.add(new PathPrefix(pathPrefix.getPrefix(), null,
+pathPrefix.shouldReroot()));
+ }
+ lazyResourcesOracle.setPathPrefixes(newPathPrefixes);
+ lazyResourcesOracle.refresh(TreeLogger.NULL);
+}
+return lazyResourcesOracle;
+ }
+
/**
* Gets a reference to the internal rules for this module def.
*/
@@ -342,6 +361,10 @@
// Refresh resource oracles.
lazyPublicOracle.refresh(logger);
lazySourceOracle.refresh(logger);
+
+if (lazyResourcesOracle != null) {
+ lazyResourcesOracle.refresh(logger);
+}
// Update the compilation state to reflect the resource oracle changes.
if (lazyCompilationState != null) {
Modified: trunk/dev/core/src/com/google/gwt/dev/cfg/PublicOracle.java
[gwt-contrib] Re: Custom tag constructor for HTMLPanel
[+ contrib] http://gwt-code-reviews.appspot.com/39802 --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] Re: Custom tag constructor for HTMLPanel
http://gwt-code-reviews.appspot.com/39802/diff/1/3
File user/src/com/google/gwt/user/client/ui/HTMLPanel.java (right):
http://gwt-code-reviews.appspot.com/39802/diff/1/3#newcode61
Line 61: public HTMLPanel(String tag, String html) {
Could we not force 'tag' to simply be an element, so that we remove one
source of possible errors (i.e. new HTMLPanel('bugger', '...'))?
http://gwt-code-reviews.appspot.com/39802
--~--~-~--~~~---~--~~
http://groups.google.com/group/Google-Web-Toolkit-Contributors
-~--~~~~--~~--~--~---
[gwt-contrib] Re: Custom tag constructor for HTMLPanel
That won't really protect anyone from anything, as they could just call
DOM.createElement(bugger) and hand that in. Also, accepting an existing
element is another way to say HTMLPanel.wrap(), which we haven't provided
so far--you really want to go there?
Anyhow, does any browser not accept bugger
thisforalark/lark/a/for/this/bugger
rjrjr
On Fri, Jun 12, 2009 at 2:11 PM, j...@google.com wrote:
http://gwt-code-reviews.appspot.com/39802/diff/1/3
File user/src/com/google/gwt/user/client/ui/HTMLPanel.java (right):
http://gwt-code-reviews.appspot.com/39802/diff/1/3#newcode61
Line 61: public HTMLPanel(String tag, String html) {
Could we not force 'tag' to simply be an element, so that we remove one
source of possible errors (i.e. new HTMLPanel('bugger', '...'))?
http://gwt-code-reviews.appspot.com/39802
--~--~-~--~~~---~--~~
http://groups.google.com/group/Google-Web-Toolkit-Contributors
-~--~~~~--~~--~--~---
[gwt-contrib] Re: Custom tag constructor for HTMLPanel
Ray: That won't really protect anyone from anything, as they could just call DOM.createElement(bugger) and hand that in. Also, accepting an existing element is another way to say HTMLPanel.wrap(), which we haven't provided so far--you really want to go there? Anyhow, does any browser not accept bugger thisforalark/lark/a/for/this/bugger http://gwt-code-reviews.appspot.com/39802 --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] Re: Custom tag constructor for HTMLPanel
On 2009/06/12 21:20:50, jgw wrote: Ray: That won't really protect anyone from anything, as they could just call DOM.createElement(bugger) and hand that in. Also, accepting an existing element is another way to say HTMLPanel.wrap(), which we haven't provided so far--you really want to go there? Anyhow, does any browser not accept bugger thisforalark/lark/a/for/this/bugger Well, we *do* have lots of methods to try and keep people 'on the rails', such as createDivElement(), etc. which I believe reduces the risk of errors in practice (they can always call createElement(bugger), but usually don't). But I think I'm ok with it, as it at least reduces the probability that someone will try and use this as a back-door wrap() method, which would lead to much wailing and gnashing of teeth on my part. LGTM. http://gwt-code-reviews.appspot.com/39802 --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] [google-web-toolkit commit] r5553 - Don't be so silly about the event sink constants in RadioButton
Author: rj...@google.com Date: Fri Jun 12 15:33:13 2009 New Revision: 5553 Modified: trunk/reference/code-museum/src/com/google/gwt/museum/client/defaultmuseum/DefaultMuseum.java trunk/user/src/com/google/gwt/user/client/ui/RadioButton.java Log: Don't be so silly about the event sink constants in RadioButton Reviewer: jlabanca Modified: trunk/reference/code-museum/src/com/google/gwt/museum/client/defaultmuseum/DefaultMuseum.java == --- trunk/reference/code-museum/src/com/google/gwt/museum/client/defaultmuseum/DefaultMuseum.java (original) +++ trunk/reference/code-museum/src/com/google/gwt/museum/client/defaultmuseum/DefaultMuseum.java Fri Jun 12 15:33:13 2009 @@ -65,5 +65,6 @@ addIssue(new VisualsForWindowEvents()); addIssue(new VisualsForDialogBox()); addIssue(new VisualsForSuggestBox()); +addIssue(new VisualsForCheckBoxAndRadioButtonEvents()); } } Modified: trunk/user/src/com/google/gwt/user/client/ui/RadioButton.java == --- trunk/user/src/com/google/gwt/user/client/ui/RadioButton.java (original) +++ trunk/user/src/com/google/gwt/user/client/ui/RadioButton.java Fri Jun 12 15:33:13 2009 @@ -17,10 +17,6 @@ import com.google.gwt.dom.client.Element; import com.google.gwt.dom.client.EventTarget; -import com.google.gwt.event.dom.client.BlurEvent; -import com.google.gwt.event.dom.client.ClickEvent; -import com.google.gwt.event.dom.client.KeyDownEvent; -import com.google.gwt.event.dom.client.MouseUpEvent; import com.google.gwt.event.logical.shared.ValueChangeEvent; import com.google.gwt.user.client.DOM; import com.google.gwt.user.client.Event; @@ -65,10 +61,10 @@ super(DOM.createInputRadio(name)); setStyleName(gwt-RadioButton); -sinkEvents(Event.getTypeInt(ClickEvent.getType().getName())); -sinkEvents(Event.getTypeInt(MouseUpEvent.getType().getName())); -sinkEvents(Event.getTypeInt(BlurEvent.getType().getName())); -sinkEvents(Event.getTypeInt(KeyDownEvent.getType().getName())); +sinkEvents(Event.ONCLICK); +sinkEvents(Event.ONMOUSEOUT); +sinkEvents(Event.ONBLUR); +sinkEvents(Event.ONKEYDOWN); } /** --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] Specify the path for translatable code explicitly in new apps created by webAppCreator
Reviewers: Ray Ryan, scottb, Description: It will be less confusing for new users. Anyone see any downsides? Please review this at http://gwt-code-reviews.appspot.com/39803 Affected files: user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc Index: user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc === --- user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc(revision 5552) +++ user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc(working copy) @@ -14,4 +14,8 @@ !-- Specify the app entry point class. -- entry-point class='@clientpacka...@moduleshortname'/ + + !-- Specify the paths for translatable code-- + source path='client'/ + /module --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] [google-web-toolkit commit] r5554 - Allow CompilationResult.getStatementRanges() to return null,
Author: sp...@google.com
Date: Fri Jun 12 15:49:54 2009
New Revision: 5554
Modified:
trunk/dev/core/src/com/google/gwt/core/ext/linker/CompilationResult.java
trunk/dev/core/src/com/google/gwt/core/linker/IFrameLinker.java
trunk/dev/core/test/com/google/gwt/core/linker/ScriptChunkingTest.java
Log:
Allow CompilationResult.getStatementRanges() to return null,
and have it do so by default.
Review by: jat
Modified:
trunk/dev/core/src/com/google/gwt/core/ext/linker/CompilationResult.java
==
---
trunk/dev/core/src/com/google/gwt/core/ext/linker/CompilationResult.java
(original)
+++
trunk/dev/core/src/com/google/gwt/core/ext/linker/CompilationResult.java
Fri Jun 12 15:49:54 2009
@@ -51,9 +51,12 @@
/**
* Returns the statement ranges for the JavaScript returned by
- * {...@link #getJavaScript()}.
+ * {...@link #getJavaScript()}. Some subclasses return codenull/code, in
+ * which case there is no statement range information available.
*/
- public abstract StatementRanges[] getStatementRanges();
+ public StatementRanges[] getStatementRanges() {
+return null;
+ }
/**
* Return a string that uniquely identifies this compilation result.
Typically
Modified: trunk/dev/core/src/com/google/gwt/core/linker/IFrameLinker.java
==
--- trunk/dev/core/src/com/google/gwt/core/linker/IFrameLinker.java
(original)
+++ trunk/dev/core/src/com/google/gwt/core/linker/IFrameLinker.java Fri Jun
12 15:49:54 2009
@@ -58,10 +58,16 @@
* Split a JavaScript string into multiple chunks, at statement
boundaries.
* Insert and end-script tag and a start-script tag in between each
chunk.
* This method is made default access for testing.
+ *
+ * @param ranges Describes where the statements are located within the
+ * JavaScript code. If codenull/code, then return
codejs/code
+ * unchanged.
+ * @param js The JavaScript code to be split up.
+ * @param charsPerChunk The number of characters to be put in each
script tag
*/
static String splitPrimaryJavaScript(StatementRanges ranges, String js,
int charsPerChunk) {
-if (charsPerChunk 0) {
+if (charsPerChunk 0 || ranges == null) {
return js;
}
@@ -72,8 +78,7 @@
int start = ranges.start(i);
int end = ranges.end(i);
int length = end - start;
- if (bytesInCurrentTag 0
- bytesInCurrentTag + length charsPerChunk) {
+ if (bytesInCurrentTag 0 bytesInCurrentTag + length
charsPerChunk) {
if (lastChar(sb) != '\n') {
sb.append('\n');
}
Modified:
trunk/dev/core/test/com/google/gwt/core/linker/ScriptChunkingTest.java
==
--- trunk/dev/core/test/com/google/gwt/core/linker/ScriptChunkingTest.java
(original)
+++ trunk/dev/core/test/com/google/gwt/core/linker/ScriptChunkingTest.java
Fri Jun 12 15:49:54 2009
@@ -118,4 +118,23 @@
builder.getJavaScript(), -1);
assertEquals(builder.getJavaScript(), split);
}
+
+ /**
+ * Test with statement ranges not present, which should disable the
chunking.
+ */
+ public void testNullStatementRanges() {
+ScriptWithRangesBuilder builder = new ScriptWithRangesBuilder();
+builder.addNonStatement({);
+builder.addNonStatement({);
+builder.addStatement(x=1;);
+builder.addStatement(function x(){x = 2}\n);
+builder.addStatement(x=3);
+builder.addNonStatement(}\n{);
+builder.addStatement(x=5);
+builder.addNonStatement(});
+
+String split = IFrameLinker.splitPrimaryJavaScript(null,
+builder.getJavaScript(), 5);
+assertEquals(builder.getJavaScript(), split);
+ }
}
--~--~-~--~~~---~--~~
http://groups.google.com/group/Google-Web-Toolkit-Contributors
-~--~~~~--~~--~--~---
[gwt-contrib] Re: Specify the path for translatable code explicitly in new apps created by webAppCreator
LGTM On Fri, Jun 12, 2009 at 6:49 PM, amitman...@google.com wrote: Reviewers: Ray Ryan, scottb, Description: It will be less confusing for new users. Anyone see any downsides? Please review this at http://gwt-code-reviews.appspot.com/39803 Affected files: user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc Index: user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc === --- user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc(revision 5552) +++ user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc(working copy) @@ -14,4 +14,8 @@ !-- Specify the app entry point class. -- entry-point class='@clientpacka...@moduleshortname'/ + + !-- Specify the paths for translatable code-- + source path='client'/ + /module --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] Re: Specify the path for translatable code explicitly in new apps created by webAppCreator
LGTM++ On Fri, Jun 12, 2009 at 4:08 PM, Scott Blum sco...@google.com wrote: LGTM On Fri, Jun 12, 2009 at 6:49 PM, amitman...@google.com wrote: Reviewers: Ray Ryan, scottb, Description: It will be less confusing for new users. Anyone see any downsides? Please review this at http://gwt-code-reviews.appspot.com/39803 Affected files: user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc Index: user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc === --- user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc(revision 5552) +++ user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc(working copy) @@ -14,4 +14,8 @@ !-- Specify the app entry point class. -- entry-point class='@clientpacka...@moduleshortname'/ + + !-- Specify the paths for translatable code-- + source path='client'/ + /module --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] Re: Specify the path for translatable code explicitly in new apps created by webAppCreator
Thanks Scott and Ray. Commited at r. On Fri, Jun 12, 2009 at 4:11 PM, Ray Ryan rj...@google.com wrote: LGTM++ On Fri, Jun 12, 2009 at 4:08 PM, Scott Blum sco...@google.com wrote: LGTM On Fri, Jun 12, 2009 at 6:49 PM, amitman...@google.com wrote: Reviewers: Ray Ryan, scottb, Description: It will be less confusing for new users. Anyone see any downsides? Please review this at http://gwt-code-reviews.appspot.com/39803 Affected files: user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc Index: user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc === --- user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc(revision 5552) +++ user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc(working copy) @@ -14,4 +14,8 @@ !-- Specify the app entry point class. -- entry-point class='@clientpacka...@moduleshortname'/ + + !-- Specify the paths for translatable code-- + source path='client'/ + /module --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] [google-web-toolkit commit] r5555 - Specify the path for translatable code explicitly in new apps created by webAppCreator.
Author: amitman...@google.com Date: Fri Jun 12 16:20:01 2009 New Revision: Modified: trunk/user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc Log: Specify the path for translatable code explicitly in new apps created by webAppCreator. Patch by: amitmanjhi Review by: scottb, rjrjr Modified: trunk/user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc == --- trunk/user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc (original) +++ trunk/user/src/com/google/gwt/user/tools/Module.gwt.xmlsrc Fri Jun 12 16:20:01 2009 @@ -14,4 +14,8 @@ !-- Specify the app entry point class. -- entry-point class='@clientpacka...@moduleshortname'/ + + !-- Specify the paths for translatable code-- + source path='client'/ + /module --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] [google-web-toolkit commit] r5556 - Merge trunk r5554 into 6/2 snapshot branch. This fixes a breaking API change
Author: j...@google.com
Date: Fri Jun 12 16:53:06 2009
New Revision: 5556
Modified:
branches/snapshot-2009.06.02-r5498/branch-info.txt
branches/snapshot-2009.06.02-r5498/dev/core/src/com/google/gwt/core/ext/linker/CompilationResult.java
branches/snapshot-2009.06.02-r5498/dev/core/src/com/google/gwt/core/linker/IFrameLinker.java
branches/snapshot-2009.06.02-r5498/dev/core/test/com/google/gwt/core/linker/ScriptChunkingTest.java
Log:
Merge trunk r5554 into 6/2 snapshot branch. This fixes a breaking API
change
by providing default behavior.
r5554 | sp...@google.com | 2009-06-12 18:49:54 -0400 (Fri, 12 Jun 2009) | 5
lines
Allow CompilationResult.getStatementRanges() to return null,
and have it do so by default.
Review by: jat
svn merge -c5554 https://google-web-toolkit.googlecode.com/svn/trunk .
Modified: branches/snapshot-2009.06.02-r5498/branch-info.txt
==
--- branches/snapshot-2009.06.02-r5498/branch-info.txt (original)
+++ branches/snapshot-2009.06.02-r5498/branch-info.txt Fri Jun 12 16:53:06
2009
@@ -26,3 +26,5 @@
svn merge -c5532 https://google-web-toolkit.googlecode.com/svn/trunk .
/trunk 5538 was merged into this branch (final(?) fix from 5523)
svn merge -c5538 https://google-web-toolkit.googlecode.com/svn/trunk .
+/trunk 5554 was merged into this branch (fix breaking API change)
+ svn merge -c5554 https://google-web-toolkit.googlecode.com/svn/trunk .
Modified:
branches/snapshot-2009.06.02-r5498/dev/core/src/com/google/gwt/core/ext/linker/CompilationResult.java
==
---
branches/snapshot-2009.06.02-r5498/dev/core/src/com/google/gwt/core/ext/linker/CompilationResult.java
(original)
+++
branches/snapshot-2009.06.02-r5498/dev/core/src/com/google/gwt/core/ext/linker/CompilationResult.java
Fri Jun 12 16:53:06 2009
@@ -51,9 +51,12 @@
/**
* Returns the statement ranges for the JavaScript returned by
- * {...@link #getJavaScript()}.
+ * {...@link #getJavaScript()}. Some subclasses return codenull/code, in
+ * which case there is no statement range information available.
*/
- public abstract StatementRanges[] getStatementRanges();
+ public StatementRanges[] getStatementRanges() {
+return null;
+ }
/**
* Return a string that uniquely identifies this compilation result.
Typically
Modified:
branches/snapshot-2009.06.02-r5498/dev/core/src/com/google/gwt/core/linker/IFrameLinker.java
==
---
branches/snapshot-2009.06.02-r5498/dev/core/src/com/google/gwt/core/linker/IFrameLinker.java
(original)
+++
branches/snapshot-2009.06.02-r5498/dev/core/src/com/google/gwt/core/linker/IFrameLinker.java
Fri Jun 12 16:53:06 2009
@@ -58,10 +58,16 @@
* Split a JavaScript string into multiple chunks, at statement
boundaries.
* Insert and end-script tag and a start-script tag in between each
chunk.
* This method is made default access for testing.
+ *
+ * @param ranges Describes where the statements are located within the
+ * JavaScript code. If codenull/code, then return
codejs/code
+ * unchanged.
+ * @param js The JavaScript code to be split up.
+ * @param charsPerChunk The number of characters to be put in each
script tag
*/
static String splitPrimaryJavaScript(StatementRanges ranges, String js,
int charsPerChunk) {
-if (charsPerChunk 0) {
+if (charsPerChunk 0 || ranges == null) {
return js;
}
@@ -72,8 +78,7 @@
int start = ranges.start(i);
int end = ranges.end(i);
int length = end - start;
- if (bytesInCurrentTag 0
- bytesInCurrentTag + length charsPerChunk) {
+ if (bytesInCurrentTag 0 bytesInCurrentTag + length
charsPerChunk) {
if (lastChar(sb) != '\n') {
sb.append('\n');
}
Modified:
branches/snapshot-2009.06.02-r5498/dev/core/test/com/google/gwt/core/linker/ScriptChunkingTest.java
==
---
branches/snapshot-2009.06.02-r5498/dev/core/test/com/google/gwt/core/linker/ScriptChunkingTest.java
(original)
+++
branches/snapshot-2009.06.02-r5498/dev/core/test/com/google/gwt/core/linker/ScriptChunkingTest.java
Fri Jun 12 16:53:06 2009
@@ -118,4 +118,23 @@
builder.getJavaScript(), -1);
assertEquals(builder.getJavaScript(), split);
}
+
+ /**
+ * Test with statement ranges not present, which should disable the
chunking.
+ */
+ public void testNullStatementRanges() {
+ScriptWithRangesBuilder builder = new ScriptWithRangesBuilder();
+
[gwt-contrib] Comment on OverlayTypes in google-web-toolkit
Comment by cromwellian:
It would be interesting to consider Constructor() as being rewritten to a
static method with an implicit call to createObject() and all references to
this rewritten to this$static. e.g.
public Foo(int x, String y) {
this.x = x;
this.y = y;
}
rewritten to
public static Foo consFoo(int x, String y) {
Foo this$static=createObject.cast();
this$static.x=x;
this$static.y=y;
return this$static;
}
Moreover, you could consider any field declarations on Foo as having
implicit native methods for getting and assignment. Thus,
public Foo extends JavaScriptObject {
int x;
}
would implicitly have methods like
native int getX() /*-{ return x; }-*/;
native void setX(int x) /*-{ this.x=x; }-*/;
although these would only exist in the compiler/AST (purely for
visualization purposes here). That way, needless boilerplate accessors in
JSOs would be eliminated.
All of the usual JSO restrictions would apply. This is purely syntactic
sugar. Stuff like field initializers and super calls in the constructor
would still be banned (for now), although they could be supported via
additional rewriting logic (like moving initializers into the synthesized
factory method and super calls invoking super class factory methods which
take this$static parameters)
For more information:
http://code.google.com/p/google-web-toolkit/wiki/OverlayTypes
--~--~-~--~~~---~--~~
http://groups.google.com/group/Google-Web-Toolkit-Contributors
-~--~~~~--~~--~--~---
[gwt-contrib] Re: Changing JsArrayT extends JavaScriptObject to JsArrayT
I'm in the process of some final tweaks on GQuery, so I'll look at how
much of my private JSArray class I can move over as a patch.
One possibility for avoiding Iterator object creation without using
flyweights is to introduce a new Iterator type which contains methods
which are parameterized by the collection and which use my Extension
Method/Category method JSO trick.
public class FastIteratorT extends JavaScriptObject {
protected FastIterator() {}
public S, T extends ListS FastIteratorS make(TS list) {
return (FastIteratorS)(GWT.isScript() ? makeWeb() : makeHosted());
}
private final native FastIterator makeWeb() /*-{
return 0;
}-*/;
private final native FastIterator makeHosted() /*-{
return [0];
}-*/;
public final int value() {
return GWT.isScript() ? valueWeb() : valueHosted();
}
public native int valueWeb() /*-{
return this;
}-*/;
public native int valueHosted() /*-{
return this[0];
}-*/;
public native hasNext(ListT list) {
return value() list.size();
}
public native T next(ListT list) {
return list.get(value()++); // unsure if using value() as rvalue
will work here
}
}
then you should be able to write code like
ListString foo = getList();
FastIteratorString iter = FastIterator.make(foo);
while(iter.hasNext(foo)) {
String s = iter.next(foo);
}
Why doesn't this create any additional objects? Because
'iter'/FastIterator is actually a native JS number/scalar type, and
what this is really doing is simulating the addition of
hasNext()/next() to the number's prototype.
We could dispense with the need for an additional parameter if GWT had
a magic method for allocating new local variables/symbols in the local
scope. Imagine if writing
VariableT x = GWT.createVariable(0);
was a magic method that just generated a 'var x = 0' declaration, only
it promised to always be inlined and do so in the caller's scope.
'Variable' would be a magic class that never creates fields on the
actual object themselves and are pruned/removed at runtime.
Then you could have FastIterator impersonate a reference to the
underlying ListT, and rewrite hasNext()/next() as:
VariableInt x = GWT.createVariableInt(0);
public boolean hasNext() {
return x.get() this.size();
}
public T next() {
return this.get(x.get()++); // or x.postIncrement()
}
this would produce code that would create no additional objects as
well as maintain Iterator-like interface.
-Ray
On Thu, Jun 11, 2009 at 7:25 AM, Stefan Hausteinhaust...@google.com wrote:
+1 Ray
Could you contribute your implementation(s)?
On Thu, Jun 11, 2009 at 12:51 PM, Joel Webber j...@google.com wrote:
+1 Ray. Now here's the really tricky question. Is there any way we can
take advantage of Javascript's for (x in y) { ... } syntax (and should we,
given its spotty performance)? My intuition tells me that the only way we
could use it would be through a callback, because there's nothing like .NET
generators/yield in Javascript.
On Wed, Jun 10, 2009 at 7:26 PM, Ray Cromwell cromwell...@gmail.com
wrote:
My take on this is that there is many places where I'd like to avoid
JRE collections, but the basic JsArray is too much of a downgrade. I
don't mind changing it to T if it doesn't effect performance cause
then I could subclass it, but as an example of the stuff I would like
in a 'FastArrayList' that is not a collections derivative:
1) add() instead of just set(length(), item) (e.g. push)
2) addAll(anotherFastArrayList) (e.g. concat)
3) splice
4) toArray() (webmode is reinterpret cast op)
5) remove
6) shift/unshift (useful for queue when combined with pop)
I use the following pattern all over GQuery to avoid JRE collections
but preserve for-each
for(Foo f : fooList.elements()) { ... }
where fooList is my own JsArrayT class, and elements() returns T[]
via reinterpret cast in webmode.
-Ray
On Thu, Jun 11, 2009 at 2:43 AM, Lex Spoonsp...@google.com wrote:
Bah, mis-send. What I was typing was:
I though the point was to get rid of JRE collections? Anyway, the
collection in question is used as a queue. I would hate to see its
performance get worse when there'
...when there's a known, straightforward alternative, and when that
alternative provides a class people have been wanting for separate
purposes.
Lex
--
Stefan Haustein
Google UK Limited
Registered Office: Belgrave House, 76 Buckingham Palace Road, London SW1W
9TQ; Registered in England Number: 3977902
--~--~-~--~~~---~--~~
http://groups.google.com/group/Google-Web-Toolkit-Contributors
-~--~~~~--~~--~--~---
[gwt-contrib] [google-web-toolkit commit] r5557 - Ant top-level target rework to allow single-platform use. Not that whereas ant build u...
Author: fabb...@google.com
Date: Fri Jun 12 19:28:21 2009
New Revision: 5557
Modified:
trunk/build.xml
trunk/common.ant.xml
trunk/tools/benchmark-viewer/build.xml
trunk/user/build.xml
Log:
Ant top-level target rework to allow single-platform use. Not that
whereas ant build used to imply, by dependence through -do, dist, it is
now just building (and the default target is changed to dist). For
develepment work, consider ant dist-dev to build a single-platform
distribution without docs or samples. For single-platform work,
consider ant dist-one (or ant buildonly, which now does only one
platform).
Review by: zundel, scottb
Modified: trunk/build.xml
==
--- trunk/build.xml (original)
+++ trunk/build.xml Fri Jun 12 19:28:21 2009
@@ -1,4 +1,4 @@
-project name=GWT default=build basedir=.
+project name=GWT default=dist basedir=.
property name=gwt.root location=. /
property name=project.tail value= /
import file=${gwt.root}/common.ant.xml /
@@ -6,67 +6,99 @@
!-- build is the default when subprojects are directly targetted --
property name=target value=build /
+ !--
+ Convenience for the descending calls we make. Use gwt.ant to
+ call into another directory, and this to call in the same build.xml
+--
+ macrodef name=call-subproject
+attribute name=subproject /
+attribute name=subtarget /
+sequential
+ antcall target=@{subproject}
+param name=target value=@{subtarget} /
+ /antcall
+/sequential
+ /macrodef
+
property name=gwt.apicheck.config
location=tools/api-checker/config/gwt16_20userApi.conf/
- target name=buildonly depends=dev, user, servlet, jni
description=Build without docs/samples
-gwt.ant dir=distro-source /
+ target name=buildonly depends=dev-one, user, servlet, jni-one
+ description=Minimal one-platform devel build, without distro
packaging
/target
- target name=dist depends=dev, user, servlet, tools, jni, doc,
samples description=Run the distributions
+ target name=dist depends=build, doc description=Make all the
distributions
gwt.ant dir=distro-source /
/target
- target name=dev depends=buildtools description=Run dev
+ target name=dist-one depends=buildonly, tools, samples, doc
description=Make only this platform's distribution
+gwt.ant dir=distro-source target=${build.host.platform} /
+ /target
+
+ target name=dist-dev depends=buildonly, tools description=Make
this platform's distribution, minus doc and samples
+gwt.ant dir=distro-source target=${build.host.platform} /
+ /target
+
+ target name=dev depends=buildtools description=Builds (or runs
${target} if set) all the dev libraries
gwt.ant dir=dev /
/target
- target name=user depends=buildtools, dev description=Run user
+ target name=dev-one depends=buildtools description=Builds only the
dev library for this platform
+gwt.ant dir=dev target=${build.host.platform}/
+gwt.ant dir=dev target=oophm/
+ /target
+
+ target name=user depends=buildtools, dev-one description=Builds
(or runs ${target} if set) only the user library
gwt.ant dir=user /
/target
- target name=tools depends=buildtools, user description=Run tools
+ target name=tools depends=buildtools, user description=Builds (or
runs ${target} if set) only the tools
gwt.ant dir=tools /
/target
- target name=servlet depends=buildtools, user description=Run
servlet
+ target name=servlet depends=buildtools, user description=Builds
(or runs ${target} if set) only the servlet jar
gwt.ant dir=servlet /
/target
- target name=jni description=Run jni
+ target name=jni description=Builds (or runs ${target} if set) jni
for all platforms
gwt.ant dir=jni /
/target
- target name=doc depends=buildtools, user description=Build doc
+ target name=jni-one description=Builds jni for only this platform
+gwt.ant dir=jni target=${build.host.platform} /
+ /target
+
+ target name=doc depends=buildtools, user description=Builds (or
runs ${target} if set) the doc
gwt.ant dir=doc /
/target
- target name=samples depends=dev, user description=Build samples
+ target name=samples depends=dev-one, user description=Builds (or
runs ${target} if set) the samples
gwt.ant dir=samples /
/target
- target name=buildtools description=Build the build tools
+ target name=buildtools description=Build (or runs ${target} if set)
the build tools
gwt.ant dir=build-tools /
/target
- target name=-do depends=dist description=Run all subprojects /
-
- target name=build description=Builds GWT
-antcall target=-do
- param name=target value=build /
-/antcall
+ target name=build description=Builds GWT, including samples, but
without distro packaging
+ depends=dev, user, servlet, tools, jni, samples
/target
- target name=checkstyle
[gwt-contrib] Re: Changing JsArrayT extends JavaScriptObject to JsArrayT
BTW, the last proposal is very unsafe with some form of escape
analysis since it is unsafe to pass references to classes which
reference local scope to other scopes. Another possibility is a form
of 'destructuring' of Iterator classes by inlining them completely
into local scope vs escape analysis and then forgoing separate
construction.
A simpler way to maintain for-each with JRE collections without
creating objects is to change the way that for-each deals with
IterableT when T is a List.
The compiler could change:
for(T x : foo) { ... }
where foo is a ListT
into
for(int i=0; ifoo.size(); ++i) {
T x = foo.get(i);
}
instead of calling foo.iterator() and using Iterator methods.
-Ray
On Fri, Jun 12, 2009 at 7:31 PM, Ray Cromwellcromwell...@gmail.com wrote:
I'm in the process of some final tweaks on GQuery, so I'll look at how
much of my private JSArray class I can move over as a patch.
One possibility for avoiding Iterator object creation without using
flyweights is to introduce a new Iterator type which contains methods
which are parameterized by the collection and which use my Extension
Method/Category method JSO trick.
public class FastIteratorT extends JavaScriptObject {
protected FastIterator() {}
public S, T extends ListS FastIteratorS make(TS list) {
return (FastIteratorS)(GWT.isScript() ? makeWeb() : makeHosted());
}
private final native FastIterator makeWeb() /*-{
return 0;
}-*/;
private final native FastIterator makeHosted() /*-{
return [0];
}-*/;
public final int value() {
return GWT.isScript() ? valueWeb() : valueHosted();
}
public native int valueWeb() /*-{
return this;
}-*/;
public native int valueHosted() /*-{
return this[0];
}-*/;
public native hasNext(ListT list) {
return value() list.size();
}
public native T next(ListT list) {
return list.get(value()++); // unsure if using value() as rvalue
will work here
}
}
then you should be able to write code like
ListString foo = getList();
FastIteratorString iter = FastIterator.make(foo);
while(iter.hasNext(foo)) {
String s = iter.next(foo);
}
Why doesn't this create any additional objects? Because
'iter'/FastIterator is actually a native JS number/scalar type, and
what this is really doing is simulating the addition of
hasNext()/next() to the number's prototype.
We could dispense with the need for an additional parameter if GWT had
a magic method for allocating new local variables/symbols in the local
scope. Imagine if writing
VariableT x = GWT.createVariable(0);
was a magic method that just generated a 'var x = 0' declaration, only
it promised to always be inlined and do so in the caller's scope.
'Variable' would be a magic class that never creates fields on the
actual object themselves and are pruned/removed at runtime.
Then you could have FastIterator impersonate a reference to the
underlying ListT, and rewrite hasNext()/next() as:
VariableInt x = GWT.createVariableInt(0);
public boolean hasNext() {
return x.get() this.size();
}
public T next() {
return this.get(x.get()++); // or x.postIncrement()
}
this would produce code that would create no additional objects as
well as maintain Iterator-like interface.
-Ray
On Thu, Jun 11, 2009 at 7:25 AM, Stefan Hausteinhaust...@google.com wrote:
+1 Ray
Could you contribute your implementation(s)?
On Thu, Jun 11, 2009 at 12:51 PM, Joel Webber j...@google.com wrote:
+1 Ray. Now here's the really tricky question. Is there any way we can
take advantage of Javascript's for (x in y) { ... } syntax (and should we,
given its spotty performance)? My intuition tells me that the only way we
could use it would be through a callback, because there's nothing like .NET
generators/yield in Javascript.
On Wed, Jun 10, 2009 at 7:26 PM, Ray Cromwell cromwell...@gmail.com
wrote:
My take on this is that there is many places where I'd like to avoid
JRE collections, but the basic JsArray is too much of a downgrade. I
don't mind changing it to T if it doesn't effect performance cause
then I could subclass it, but as an example of the stuff I would like
in a 'FastArrayList' that is not a collections derivative:
1) add() instead of just set(length(), item) (e.g. push)
2) addAll(anotherFastArrayList) (e.g. concat)
3) splice
4) toArray() (webmode is reinterpret cast op)
5) remove
6) shift/unshift (useful for queue when combined with pop)
I use the following pattern all over GQuery to avoid JRE collections
but preserve for-each
for(Foo f : fooList.elements()) { ... }
where fooList is my own JsArrayT class, and elements() returns T[]
via reinterpret cast in webmode.
-Ray
On Thu, Jun 11, 2009 at 2:43 AM, Lex Spoonsp...@google.com wrote:
Bah, mis-send. What I was typing was:
I though the point was to get rid of JRE collections? Anyway, the
collection in question is used as a queue. I would hate to see its
