Re: conversion to JavaScriptObject fails with cross site communication

[Adam T]

Hi Dale,

Could be a couple of things...

1) Your asBasicComputerInfo() method takes a variable jso and you
try and return a reference to a variable json - though maybe that's
just a typo in your message?

2) Your JSON response from server doesn't appear to be an array, so
ignoring any potential typo above, your asBasicComputerInfo() could be
failing when trying to cast a simple JavaScriptObject into a JsArray
- I'd suggest either returning an array from the server, or altering
your code so you don't use a JsArray.

Also, the data in your JSON is all strings, therefore methods like
public final native int RAM() will possibly fail later in your code -
you could create a new method in the BasicComputerInfo class that does
the conversion for you, e.g. public int getRAM(){Integer.parseInt(RAM
());} and change RAM() to return the String in the JSON.

Hope some of that helps!

//Adam

On 28 Juli, 23:57, dale fortiscont...@gmail.com wrote:
 I am creating my first GWT app and have hit a snag. I suspect that the
 problem is one things below. I can see in the server logs that the
 server returns ok.

    This is the method that fails, there is no error ... that I can
 see :)
           private final native JsArrayBasicComputerInfo asBasicComputerInfo
 (JavaScriptObject jso) /*-{
             return json;
           }-*/;

 I am calling it in the handleJsonResonse  method and execution never
 makes it to the UpdateDetailPanel Method.

           public void handleJsonResponse(JavaScriptObject jso) {
                     if (jso == null) {
                       displayError(Couldn't retrieve JSON);
                       return;
                     }

                     updateDetailPanel(asBasicComputerInfo (jso));//--After 
 the
 breakpoint here it never gets to updateDetailPanel

                   }

 This is the response from the server looks like this when I get it
 from a browser.

 callback0(
 {
 LastBootTime: 7/27/2009 8:46:25 AM,
 UserName: aUser,
 OS: xp,
 OSVersion: 5.1.2600,
 BuildDate: 5/6/2008 3:18:06 PM,
 RAM: 1063329792,
 HDCapasity: 2676800,
 HDFree: 7487799296,
 NumProcessors: 1,
 PowerState: Unknown,
 Site: NA,
 Office: NA,
 IPAddress: NA,
 IPAddress: Dell Inc.,
 Model: OptiPlex GX620}

 );

 here is the BasicComputerInfo Class:

 public class BasicComputerInfo extends JavaScriptObject {

         protected BasicComputerInfo(){}

           // JSNI methods to get stock data.
           public final native String LastBootTime() /*-{ return
 this.LastBootTime; }-*/;
           public final native String UserName() /*-{ return this.UserName; }-
 */;
           public final native String OS() /*-{ return this.OS; }-*/;
           public final native String OSVersion() /*-{ return
 this.OSVersion; }-*/;
           public final native String BuildDate() /*-{ return
 this.BuildDate; }-*/;
           public final native int RAM() /*-{ return this.RAM; }-*/;
           public final native Long HDCapasity() /*-{ return
 this.HDCapasity; }-*/;
           public final native Long HDFree() /*-{ return this.HDFree; }-*/;
           public final native int NumProcessors() /*-{ return
 this.NumProcessors; }-*/;
           public final native String PowerState() /*-{ return
 this.PowerState; }-*/;
           public final native String Site() /*-{ return this.Site; }-*/;
           public final native String Office() /*-{ return this.Office; }-*/;
           public final native String IPAddress() /*-{ return
 this.IPAddress; }-*/;
           public final native String Manufacturer() /*-{ return
 this.Manufacturer; }-*/;
           public final native String Model() /*-{ return this.Model; }-*/;

 }
--~--~-~--~~~---~--~~
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: Several simple questions from a newbie

[Manik Chand]

Can we add element of Horizontal panel instead of Image to catch mouse
event.

On Thu, Aug 2, 2007 at 8:12 PM, krispy cplum...@integrity-apps.com wrote:


 Hey Budric - comments inline.

  1.  I'm using it in NetBeans through GWT4NB plugin.  I'm trying to add
  a style sheet to the project.  How is that done?  I see DynaTable
  sample links the style sheet into HTML.  The KitchenSink puts it in
  *.gwt.xml file as stylesheet.  This option doesn't work for me.  The
  style isn't applied and I don't know why.  I don't know if the
  compiler is not seeing it or it's invalid or what...I'm under the
  impression that the *.js file should contain the reference to the css
  file and write it into the document.

 You're supposed to be able to do the stylesheet thing in the module
 file - I don't know, I've never tried.  Usually the stylesheet goes
 into the head of your HTML document.  Put the following line in:

 link rel='stylesheet' href='MyStyleSheet.css'/

  2.  How can I add my package to a module?  So far it seems any classes
  outside *.client package that you import aren't compiled.  Makes
  sense, but this is my own package I'm writing just to separate the
  code a bit and I want to be able to import that package.

 You can do a couple of things - if I remember rightly, one is to set
 up a separate gwt.xml file that contains definitions for your other
 packages, then inherit it in your other modules that need it.  The
 simplest thing to do, IMO, is to change the source tag in your
 current gwt.xml file to point at other packages.  It defaults to
 looking at /client only for client side source:


 http://code.google.com/webtoolkit/documentation/com.google.gwt.doc.DeveloperGuide.Fundamentals.Modules.ModuleXml.html

 If you have a structure like this:

 /com/mycompany/gwt/client
 /com/mycompany/gwt/otherstuff
 /com/mycompany/gwt/otherstuff/morestuff

 then what you would add to your gwt.xml file is:

 source path=client/
 source path=otherstuff/

 If you have something like this:

 /com/mycompany/gwt/client
 /com/mycompany/otherstuff

 Then you would have to set up another gwt.xml file at com/mycompany,
 or else move your current one com/mycompany and use

 source path=gwt/
 source path=otherstuff/

 since the module loads source relative to your gwt.xml file.

  3.  I'm using Image.setUrl() to scroll through some images hosted by
  the server.  It seems that these images are not cached by the client's
  browser (IE/Firefox).  Anyone know why?

 You might need to change your browser settings, but more likely you
 need to make sure your web server is configured correctly and sending
 the right headers.  It depends greatly on what your response headers
 look like, really - but I'm not sure if it's possible to have a
 browser setting that ignores those headers and doesn't cache
 anything?  Search these forums more for cache response to find the
 right headers.

  4.  I'm trying to capture some dragging events on an image.  This
  doesn't work.  The mouse down is captured, then as you start to drag
  the mouse cursor changes, and mousemove, mouse up (most important) are
  not reported.  Note that the image would not be moving with the mouse
  cursor.  Anyone know a solution to this?  Overlaying some sort of a
  control on top of an image to capture the events may solve the
  problem, but I don't know how to layer one control on top of another
  (especially since I can't get my css to work!).

 Make sure that your image is set as the capture element with
 DOM.setCapture(Element).  Otherwise, when you move the mouse too fast
 it'll lose the events (b/c it'll do a mouse leave, I think).  It's
 hard to know if this is actually the problem until we see some source
 as to how you're catching events and responding to them.

  Thanks a lot for any help.

 Anytime - that's what we're here for.

 -krispy


 


--~--~-~--~~~---~--~~
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: Setting Background image on panel

[Ed]

Do you know how to set the background-image of any html tag, like a
DIV through CSS?

1) If yes: then you have your solution as you only have to set the CSS
name on your widget/panel through for example setStyleName(String).
2) If not: please have a look at some HTML book how to do this and go
back to 1)...

Extra info: go through a a tutorial of GWT, as it's basically the
first thing they explain..

--~--~-~--~~~---~--~~
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: Setting Background image on panel

[Rodrigue Lagoue]

Hi Ed
at first thanks for your answer.

1) If yes: then you have your solution as you only have to set the CSS
name on your widget/panel through for example setStyleName(String).

it's the first thing i tried. But it didn't work at all. here is a listing
of the involved part in my css file:

*.rightPanelReservedZone {*
* **background-image: url(images/bgleer.jpg);*
* **background-repeat: no-repeat;*
* **background-attachment: fixed;*
* **font-family: Arial, Helvetica, sans-serif;*
* **font-size: 12px;*
* **font-style: normal;*
* **font-weight: normal;*
* **height: 90%;*
* **width: 85%;** *
*}*

and i then add a new style by calling:


*//rightPanel.addStyleName(rightPanelReservedZone);*
* **rightPanel.setStyleName(rightPanelReservedZone);*
*
*
Like you can see, i tried the both methods, but without success.

I thought it could be a problem with the image's path. But to my surprise, i
the image was found as i try the following *panel.add(new
Image(images/pic.jpg))*.





On Wed, Jul 29, 2009 at 9:38 AM, Ed post2edb...@hotmail.com wrote:


 Do you know how to set the background-image of any html tag, like a
 DIV through CSS?

 1) If yes: then you have your solution as you only have to set the CSS
 name on your widget/panel through for example setStyleName(String).
 2) If not: please have a look at some HTML book how to do this and go
 back to 1)...

 Extra info: go through a a tutorial of GWT, as it's basically the
 first thing they explain..

 


--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

CSS-ToolBar

[Muhannad Nasser]

hi all

the buttons in the grid panel does not have frame when the mouse is
not over them, but when we put the mouse over the button the frame
appears. i need to make the frame visible all the time even if the
mouse is not over the button like the regular button.

does anybody have an idea and can help me...

thanks

Muhannad
--~--~-~--~~~---~--~~
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: conversion to JavaScriptObject fails with cross site communication

[dale]

Thanks Adam,
   You were right about all 3 things, although I'm not sure which
actually fixed it. probably combo of all of them :) .  I changed the
problem method to be:
  private final native BasicComputerInfo asBasicComputerInfo
(JavaScriptObject json) /*-{
return json;
  }-*/;
Fixing the variable to json and making it not return an array.
I also changed everything to strings for now just to see if I can get
it to work.

And it is working!!!
thanks again

dale


On Jul 29, 1:08 am, Adam T adam.t...@gmail.com wrote:
 Hi Dale,

 Could be a couple of things...

 1) Your asBasicComputerInfo() method takes a variable jso and you
 try and return a reference to a variable json - though maybe that's
 just a typo in your message?

 2) Your JSON response from server doesn't appear to be an array, so
 ignoring any potential typo above, your asBasicComputerInfo() could be
 failing when trying to cast a simple JavaScriptObject into a JsArray
 - I'd suggest either returning an array from the server, or altering
 your code so you don't use a JsArray.

 Also, the data in your JSON is all strings, therefore methods like
 public final native int RAM() will possibly fail later in your code -
 you could create a new method in the BasicComputerInfo class that does
 the conversion for you, e.g. public int getRAM(){Integer.parseInt(RAM
 ());} and change RAM() to return the String in the JSON.

 Hope some of that helps!

 //Adam

 On 28 Juli, 23:57, dale fortiscont...@gmail.com wrote:



  I am creating my first GWT app and have hit a snag. I suspect that the
  problem is one things below. I can see in the server logs that the
  server returns ok.

     This is the method that fails, there is no error ... that I can
  see :)
            private final native JsArrayBasicComputerInfo 
  asBasicComputerInfo
  (JavaScriptObject jso) /*-{
              return json;
            }-*/;

  I am calling it in the handleJsonResonse  method and execution never
  makes it to the UpdateDetailPanel Method.

            public void handleJsonResponse(JavaScriptObject jso) {
                      if (jso == null) {
                        displayError(Couldn't retrieve JSON);
                        return;
                      }

                      updateDetailPanel(asBasicComputerInfo (jso));//--After 
  the
  breakpoint here it never gets to updateDetailPanel

                    }

  This is the response from the server looks like this when I get it
  from a browser.

  callback0(
  {
  LastBootTime: 7/27/2009 8:46:25 AM,
  UserName: aUser,
  OS: xp,
  OSVersion: 5.1.2600,
  BuildDate: 5/6/2008 3:18:06 PM,
  RAM: 1063329792,
  HDCapasity: 2676800,
  HDFree: 7487799296,
  NumProcessors: 1,
  PowerState: Unknown,
  Site: NA,
  Office: NA,
  IPAddress: NA,
  IPAddress: Dell Inc.,
  Model: OptiPlex GX620}

  );

  here is the BasicComputerInfo Class:

  public class BasicComputerInfo extends JavaScriptObject {

          protected BasicComputerInfo(){}

            // JSNI methods to get stock data.
            public final native String LastBootTime() /*-{ return
  this.LastBootTime; }-*/;
            public final native String UserName() /*-{ return this.UserName; 
  }-
  */;
            public final native String OS() /*-{ return this.OS; }-*/;
            public final native String OSVersion() /*-{ return
  this.OSVersion; }-*/;
            public final native String BuildDate() /*-{ return
  this.BuildDate; }-*/;
            public final native int RAM() /*-{ return this.RAM; }-*/;
            public final native Long HDCapasity() /*-{ return
  this.HDCapasity; }-*/;
            public final native Long HDFree() /*-{ return this.HDFree; }-*/;
            public final native int NumProcessors() /*-{ return
  this.NumProcessors; }-*/;
            public final native String PowerState() /*-{ return
  this.PowerState; }-*/;
            public final native String Site() /*-{ return this.Site; }-*/;
            public final native String Office() /*-{ return this.Office; }-*/;
            public final native String IPAddress() /*-{ return
  this.IPAddress; }-*/;
            public final native String Manufacturer() /*-{ return
  this.Manufacturer; }-*/;
            public final native String Model() /*-{ return this.Model; }-*/;

  }
--~--~-~--~~~---~--~~
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: save form data in database

[Tobe]

I added the jar to the build path and built the project but still get
the error: C3P0Registry cannot be resolved.

On Jul 29, 2:50 am, brett.wooldridge brett.wooldri...@gmail.com
wrote:
 You have to add the CP30 jar to your project's Build Path.  Right-
 click on project- Properties - Java Build Path - Libraries.

 -Brett

 On Jul 29, 1:34 am, Tobe tobias.jungnic...@googlemail.com wrote:



  @Brett
  I'm using Eclipse and did the things you've posted. I also added the 2
  jars in the run configurations, but by compiling the source I get
  errors for C3P0Registry.

  On Jul 28, 2:09 pm, brett.wooldridge brett.wooldri...@gmail.com
  wrote:

   I run MySQL with a C3P0 connection pool in front of it.  This is what
   I did [almost] verbatim.  This is assuming you're running Jetty and
   servlets/RPC.

   1. In your war/WEB-INF/lib put the c3p0 jar.  Get C3P0 from 
   herehttp://sourceforge.net/projects/c3p0.

   2. In your war/WEB-INF/lib put the mysql-connector JDBC jar.  Get from
   herehttp://www.mysql.com/products/connector.

   3. In war/WEB-INF create a file called jetty-web.xml with these
   contents:

   ?xml version=1.0?
   !DOCTYPE Configure PUBLIC -//Mort Bay Consulting//DTD Configure//EN
   http://jetty.mortbay.org/configure.dtd;

   Configure class=org.mortbay.jetty.webapp.WebAppContext
       New id=yourDS
   class=com.mchange.v2.c3p0.ComboPooledDataSource
           Set name=driverClasscom.mysql.jdbc.Driver/Set
           Set name=jdbcUrljdbc:mysql://localhost:3306/yourdb?
   cacheResultSetMetadata=true/Set
           Set name=userroot/Set
           Set name=password/Set
           Set name=initialPoolSize10/Set
           Set name=minPoolSize50/Set
           Set name=maxPoolSize500/Set
           Set name=idleConnectionTestPeriod300/Set
           Set name=maxIdleTime1800/Set
           Set name=maxIdleTimeExcessConnections600/Set
           Set name=maxConnectionAge1800/Set
           Set name=maxStatementsPerConnection50/Set
           Set name=preferredTestQuerySELECT 1/Set
           Set name=acquireRetryAttempts3/Set
           Set name=acquireRetryDelay10/Set
           Set name=checkoutTimeout2/Set
           Set name=numHelperThreads4/Set
           Set name=dataSourceNameyourDS/Set
       /New
   /Configure

   4. Somewhere in your code where you manage the JDBC DataSource do:

   DataSource myDS = C3P0Registry.pooledDataSourceByName(yourDS);

   I've led you to the water, now it's time to drink.  The rest is up to
   you.

   Brett
--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

Application Integration

[NeMeSiS]

Hello all,

I would like to integrate an application into my GWT-Site(similar to
integrating an applet). Is this possible?
Another option would be to open an application on the client machine
(but I don't think this is possible because of browser restictions and
security reasons) or at least communicate with an application that is
running on the client machine. The last point would also be perfect.
But can I do that with GWT? Or is there a library that offers this
functionality?

Grettings and TIA,

NeMeSiS
--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

Multiple pages question

[maarten.de...@gmail.com]

Hi,

I've been trying out GWT for a couple of weeks now and stumbled upon a
beginner's question relating multiple pages.

For example, let's suppose an application with users where you have an
application page, a login page and a register page. Using GWT for the
application page speaks for itself, but what about the other pages?

I've read the other topics about this problem in the group. It seems
the proper GWT solution is to clear window and load another GUI there.
This would actually wrap all the pages within the application. I can
see how this solution would work, but then you lack a lot of usefull
HTML pages that lay out the login and register forms. This way, making
the lay-out of the page cannot be seperated from coding the
application, at least not in HTML vs GWT/Java.

Is there another way of working for this? One that does permit to
seperate page lay-out and coding?

Greets,

Maarten Decat
--~--~-~--~~~---~--~~
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: Application Integration

[NeMeSiS]

Thanks for that fast answer!
I need to use an XML-Editor. Which one exactly is not specified. I
think I will use something opensource. So can I use an activeX control
and show the editor inside? Can I also send and recieve commands and
data to the editor? How is that done?

Greetings,
NeMeSiS


On 29 Jul., 12:34, makoki iagoto...@gmail.com wrote:
 What sort of application, which type of integration are you talking
 about. I'm sure, although never tried, it's feasible to do it, either
 creating an activeX control or similar.

 On 29 jul, 12:32, NeMeSiS m.weish...@web.de wrote:

  Hello all,

  I would like to integrate an application into my GWT-Site(similar to
  integrating an applet). Is this possible?
  Another option would be to open an application on the client machine
  (but I don't think this is possible because of browser restictions and
  security reasons) or at least communicate with an application that is
  running on the client machine. The last point would also be perfect.
  But can I do that with GWT? Or is there a library that offers this
  functionality?

  Grettings and TIA,

  NeMeSiS
--~--~-~--~~~---~--~~
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 line to break from textarea

[Phil]

How about simply using String's replaceAll() method?
String html = textArea.getText().replaceAll((\r\n|\r|\n), br/);


On Jul 28, 5:04 pm, Tobe tobias.jungnic...@googlemail.com wrote:
 Hi,
 how can I activate that new lines in a TextArea become breaks directly
 on the web page? In short I need the nl2br() function from PHP in GWT.
--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

regex escape characters with Messages

[davis]

Hi, I want to store some regex expressions in my own Messages
instance.  Unfortunately, the {0} brace/number syntax seems strictly
reserved for text replacement

i.e. key=blah blah {0} blah

public interface MyMessages extends Messages {
   @DefaultMessage(blah blah {0} blah)
   String key(int num);
}

I want to put something like this in:

   @DefaultMessage([\\w]{12})
   String myRegex();

but the compiler croaks on that b/c the interface method does not take
12 arguments.  Is there a way to escape 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
-~--~~~~--~~--~--~---

Re: Gadgets Docs

[Lucas Neves Martins]

http://code.google.com/intl/en/webtoolkit/overview.html

The link is located at the left menu, expanding the Tutorials tree.

Getting Started  Tutorials  GWT Gadgets  404 !

On 28 jul, 15:54, Eric Ayers zun...@google.com wrote:
 Hi Lucas,

 What page is the source of that link?

 -Eric.

 On Tue, Jul 28, 2009 at 2:16 PM, Lucas Neves Martinssnown...@gmail.com 
 wrote:

  Whoops, here it goes:

 http://code.google.com/intl/en/webtoolkit/tutorials/1.6/gadgets.html

  On 28 jul, 15:14, Lucas Neves Martins snown...@gmail.com wrote:
  The link is broken,

  /intl/en/webtoolkit/tutorials/1.6/gadgets.html

  Bridges are falling, and buidings are crashing here, somebody help!

 --
 Eric Z. Ayers - GWT Team - Atlanta, GA USAhttp://code.google.com/webtoolkit/
--~--~-~--~~~---~--~~
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: Application Integration

[Lucas Neves Martins]

I saw some guys doing that with iframes, I do not like iframes, but it
works, give it a try.

If you know how to use an iframe you already figured out what to do,
but if not :

[code]

iframe  src=myapp/MyGwtApplication.html name=MyAppFrame
width=600 height=400 scrolling=noAn integrated App/iframe

[/code]

The tag src should point to your app entry point, if you are running
the app on hosted mode, click on the Compile/Browse button, you app
will open up on your default browser, copy the location and use it as
the src of yout iframe.

I don't have practice on explaining things, so if you don't get it,
ask again, I will be pleased to help.

Good luck!

On 29 jul, 08:20, NeMeSiS m.weish...@web.de wrote:
 Thanks for that fast answer!
 I need to use an XML-Editor. Which one exactly is not specified. I
 think I will use something opensource. So can I use an activeX control
 and show the editor inside? Can I also send and recieve commands and
 data to the editor? How is that done?

 Greetings,
 NeMeSiS

 On 29 Jul., 12:34, makoki iagoto...@gmail.com wrote:

  What sort of application, which type of integration are you talking
  about. I'm sure, although never tried, it's feasible to do it, either
  creating an activeX control or similar.

  On 29 jul, 12:32, NeMeSiS m.weish...@web.de wrote:

   Hello all,

   I would like to integrate an application into my GWT-Site(similar to
   integrating an applet). Is this possible?
   Another option would be to open an application on the client machine
   (but I don't think this is possible because of browser restictions and
   security reasons) or at least communicate with an application that is
   running on the client machine. The last point would also be perfect.
   But can I do that with GWT? Or is there a library that offers this
   functionality?

   Grettings and TIA,

   NeMeSiS
--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

Creating and Importing GWT Independent Modules

[Lucas Neves Martins]

I looked it up all over the internet, but I only found this link :

http://developerlife.com/tutorials/?p=229

I need to create a .jar with gwt views (those .java in the client
package) and then import it to other gwt project, much like they do
with the SmartGwt api.

How they did the SmartGwt api? Where is the Docs/Tutorial/Whitepapers
on how to create and export GWT modules?

I follow the instructions on this link above, but it just doesn't
work, when I try to compile it, I get an error telling me that the
compiler couldn't find the class I am using, even the class is on the /
lib dir, and in my buildpath, and in the .xml with a declared inherit.

Does anybody know how do I do that?
--~--~-~--~~~---~--~~
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: Gadgets Docs

[Eric Ayers]

Thanks for reporting the broken link, I'm looking into it.

I should have mentioned this upfront, but there is a tutorial for
using Gadgets with GWT 1.5 in

http://code.google.com/p/gwt-google-apis

YMMV with GWT 1.6 and above.  The docs need some work, and there have
been bugs reported in Gadgets and Gears due to the new war project
style layout.

On Wed, Jul 29, 2009 at 8:45 AM, Lucas Neves Martinssnown...@gmail.com wrote:

 http://code.google.com/intl/en/webtoolkit/overview.html

 The link is located at the left menu, expanding the Tutorials tree.

 Getting Started  Tutorials  GWT Gadgets  404 !

 On 28 jul, 15:54, Eric Ayers zun...@google.com wrote:
 Hi Lucas,

 What page is the source of that link?

 -Eric.

 On Tue, Jul 28, 2009 at 2:16 PM, Lucas Neves Martinssnown...@gmail.com 
 wrote:

  Whoops, here it goes:

 http://code.google.com/intl/en/webtoolkit/tutorials/1.6/gadgets.html

  On 28 jul, 15:14, Lucas Neves Martins snown...@gmail.com wrote:
  The link is broken,

  /intl/en/webtoolkit/tutorials/1.6/gadgets.html

  Bridges are falling, and buidings are crashing here, somebody help!

 --
 Eric Z. Ayers - GWT Team - Atlanta, GA USAhttp://code.google.com/webtoolkit/
 




-- 
Eric Z. Ayers - GWT Team - Atlanta, GA USA
http://code.google.com/webtoolkit/

--~--~-~--~~~---~--~~
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: Creating and Importing GWT Independent Modules

[Nuno]

you dont need to do much thing for this...
just create your gwt library project, you dont need to define any
entrypoints.

after, just click with your right button on your project, then export, then
select java package

after you only need to import
this jar on the other project you want to use it, and on the module
xml make reference to the xml of the library.

you can find an example on my blog. http://tcninja.blogspot.com

On Wed, Jul 29, 2009 at 10:10 AM, Lucas Neves Martins snown...@gmail.comwrote:


 I looked it up all over the internet, but I only found this link :

 http://developerlife.com/tutorials/?p=229

 I need to create a .jar with gwt views (those .java in the client
 package) and then import it to other gwt project, much like they do
 with the SmartGwt api.

 How they did the SmartGwt api? Where is the Docs/Tutorial/Whitepapers
 on how to create and export GWT modules?

 I follow the instructions on this link above, but it just doesn't
 work, when I try to compile it, I get an error telling me that the
 compiler couldn't find the class I am using, even the class is on the /
 lib dir, and in my buildpath, and in the .xml with a declared inherit.

 Does anybody know how do I do that?
 



-- 
Quer aprender a programar? acompanhe:
Wants to learn GWT? Follow this blog -

http://tcninja.blogspot.com

--~--~-~--~~~---~--~~
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: Gadgets Docs

[Lucas Neves Martins]

OK,

Thanks!

On 29 jul, 10:17, Eric Ayers zun...@google.com wrote:
 Thanks for reporting the broken link, I'm looking into it.

 I should have mentioned this upfront, but there is a tutorial for
 using Gadgets with GWT 1.5 in

 http://code.google.com/p/gwt-google-apis

 YMMV with GWT 1.6 and above.  The docs need some work, and there have
 been bugs reported in Gadgets and Gears due to the new war project
 style layout.



 On Wed, Jul 29, 2009 at 8:45 AM, Lucas Neves Martinssnown...@gmail.com 
 wrote:

 http://code.google.com/intl/en/webtoolkit/overview.html

  The link is located at the left menu, expanding the Tutorials tree.

  Getting Started  Tutorials  GWT Gadgets  404 !

  On 28 jul, 15:54, Eric Ayers zun...@google.com wrote:
  Hi Lucas,

  What page is the source of that link?

  -Eric.

  On Tue, Jul 28, 2009 at 2:16 PM, Lucas Neves Martinssnown...@gmail.com 
  wrote:

   Whoops, here it goes:

  http://code.google.com/intl/en/webtoolkit/tutorials/1.6/gadgets.html

   On 28 jul, 15:14, Lucas Neves Martins snown...@gmail.com wrote:
   The link is broken,

   /intl/en/webtoolkit/tutorials/1.6/gadgets.html

   Bridges are falling, and buidings are crashing here, somebody help!

  --
  Eric Z. Ayers - GWT Team - Atlanta, GA 
  USAhttp://code.google.com/webtoolkit/

 --
 Eric Z. Ayers - GWT Team - Atlanta, GA USAhttp://code.google.com/webtoolkit/
--~--~-~--~~~---~--~~
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: Setting Background image on panel

[Nuno]

but you may be setting the wrong path... unless your css file is located on
the same page as the html...
otherwise you would be looking at:

blablabal/*css*/images/bgleer.jpg from your css
*
*
*and *

blablabal/images/bgleer.jpg from your GWT/html code

On Wed, Jul 29, 2009 at 5:22 AM, Rodrigue Lagoue rlag...@googlemail.comwrote:

 Hi Ed
 at first thanks for your answer.

 1) If yes: then you have your solution as you only have to set the CSS
 name on your widget/panel through for example setStyleName(String).

 it's the first thing i tried. But it didn't work at all. here is a listing
 of the involved part in my css file:

 *.rightPanelReservedZone {*
 * **background-image: url(images/bgleer.jpg);*
 * **background-repeat: no-repeat;*
 * **background-attachment: fixed;*
 * **font-family: Arial, Helvetica, sans-serif;*
 * **font-size: 12px;*
 * **font-style: normal;*
 * **font-weight: normal;*
 * **height: 90%;*
 * **width: 85%;** *
 *}*

 and i then add a new style by calling:


 *//rightPanel.addStyleName(rightPanelReservedZone);*
 * **rightPanel.setStyleName(rightPanelReservedZone);*
 *
 *
 Like you can see, i tried the both methods, but without success.

 I thought it could be a problem with the image's path. But to my surprise,
 i the image was found as i try the following *panel.add(new
 Image(images/pic.jpg))*.





 On Wed, Jul 29, 2009 at 9:38 AM, Ed post2edb...@hotmail.com wrote:


 Do you know how to set the background-image of any html tag, like a
 DIV through CSS?

 1) If yes: then you have your solution as you only have to set the CSS
 name on your widget/panel through for example setStyleName(String).
 2) If not: please have a look at some HTML book how to do this and go
 back to 1)...

 Extra info: go through a a tutorial of GWT, as it's basically the
 first thing they explain..




 



-- 
Quer aprender a programar? acompanhe:
Wants to learn GWT? Follow this blog -

http://tcninja.blogspot.com

--~--~-~--~~~---~--~~
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 line to break from textarea

[Tobe]

looks good, but if I used it I got br /s written on the web page.
I used the following code:

RootPanel.get(textNews).getElement().setInnerText
(textareaNews.getText().replaceAll((\r\n|\r|\n), br /));

By changing setInnerText to setInnerHTML all works fine

thanks

On Jul 29, 1:56 pm, Phil couch...@googlemail.com wrote:
 How about simply using String's replaceAll() method?
 String html = textArea.getText().replaceAll((\r\n|\r|\n), br/);

 On Jul 28, 5:04 pm, Tobe tobias.jungnic...@googlemail.com wrote:



  Hi,
  how can I activate that new lines in a TextArea become breaks directly
  on the web page? In short I need the nl2br() function from PHP in GWT.
--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

Save form data

[Jeremiah Moses]

Hi
I want to save some form data into my database my forms are generated using
GWT and i already have code that interacts with my database, now my question
is how do i interact with this code ... is RPC the only way to do it in GWT
or is there any other way to integrate my gwt UI to this  my existing
code can save to the database and retrive information so all i need to do is
send the info to it using the form generated in GWT any examples with
regards to this are welcome

thanks

Jeremiah Moses

--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

[ERROR] Line 3: The import java.math cannot be resolved

[akshi]

Hi Folks,

I am using GWT as a beginner and at the time of using
java.math.BigDecimal it gives me exception.

Compiling module com.techjini.app.SwordFish
   Refreshing module from source
  Validating newly compiled units
 Removing units with errors
[ERROR] Errors in 'file:/D:/dev/GWT/gwt_workspace/
SwordFish/src/com/techjini/app/client/InvoiceService.java'
   [ERROR] Line 3: The import java.math cannot be resolved
   [ERROR] Line 13: BigDecimal cannot be resolved to a
type
 Removing units with errors
[ERROR] Errors in 'file:/D:/dev/GWT/gwt_workspace/
SwordFish/src/com/techjini/app/client/invoice/CreateInvoice.java'
   [ERROR] Line 341: No source code is available for type
java.math.BigDecimal; did you forget to inherit a required module?
[ERROR] Errors in 'file:/D:/dev/GWT/gwt_workspace/
SwordFish/src/com/techjini/app/client/InvoiceServiceAsync.java'
   [ERROR] Line 10: No source code is available for type
java.math.BigDecimal; did you forget to inherit a required module?
 Removing invalidated units
[WARN] Compilation unit 'file:/D:/dev/GWT/gwt_workspace/
SwordFish/src/com/techjini/app/client/invoice/InvoiceScreen.java' is
removed due to invalid reference(s):
   [WARN] file:/D:/dev/GWT/gwt_workspace/SwordFish/src/com/
techjini/app/client/invoice/CreateInvoice.java
[WARN] Compilation unit 'file:/D:/dev/GWT/gwt_workspace/
SwordFish/src/com/techjini/app/client/SwordFish.java' is removed due
to invalid reference(s):
   [WARN] file:/D:/dev/GWT/gwt_workspace/SwordFish/src/com/
techjini/app/client/invoice/InvoiceScreen.java
   Computing all possible rebind results for
'com.techjini.app.client.SwordFish'
  Rebinding com.techjini.app.client.SwordFish
 Checking rule generate-with
class='com.google.gwt.user.rebind.ui.ImageBundleGenerator'/
[ERROR] Unable to find type
'com.techjini.app.client.SwordFish'
   [ERROR] Hint: Previous compiler errors may have made
this type unavailable
   [ERROR] Hint: Check the inheritance chain from your
module; it may not be inheriting a required module or a module may not
be adding its source path entries properly


Following is the code :

Model class :
import java.math.BigDecimal;
import java.util.Date;

import javax.jdo.annotations.IdGeneratorStrategy;
import javax.jdo.annotations.IdentityType;
import javax.jdo.annotations.PersistenceCapable;
import javax.jdo.annotations.Persistent;
import javax.jdo.annotations.PrimaryKey;

import com.google.appengine.api.datastore.Blob;
import com.techjini.app.server.util.DateUtil;

@PersistenceCapable(identityType=IdentityType.APPLICATION)
public class Invoice {

public static final Short ACTIVE_STATUS = 1;
public static final Short INACTIVE_STATUS = 2;


@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Long invoiceId;
@Persistent
private ClientCustomer clientCustomer;
@Persistent
private InvoiceTemplate invoiceTemplate;
@Persistent
private InvoiceSetting invoiceSetting;
@Persistent
private Date dueDate;
@Persistent
private Date invoiceDate;
@Persistent
private BigDecimal amount;
@Persistent
private Short InvoiceStatus;
@Persistent
private Blob invoiceContent;
@Persistent
private Date createdAt;
@Persistent
private Long createdBy;
@Persistent
private Date lastUpdatedAt;
@Persistent
private Long lastUpdatedBy;
@Persistent
private boolean isDeleted;
@Persistent
private Integer version;

public Invoice(Long clientCustomerId, Date dueDate,
Date invoiceDate, BigDecimal amount, Short 
invoiceStatus) {
this.amount = amount;
this.createdAt = DateUtil.getCurrentDate();
this.dueDate = dueDate;
this.invoiceDate = invoiceDate;
this.lastUpdatedAt = DateUtil.getCurrentDate();
this.InvoiceStatus = invoiceStatus;
}
 // and getter setter of the fields
}


Interface :

import java.math.BigDecimal;
import java.util.Date;

import com.google.gwt.user.client.rpc.RemoteService;
import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;


@RemoteServiceRelativePath(createInvoice)
public interface InvoiceService extends RemoteService {
String createInvoice(String invoiceNo, Long clientCustomerId, Date
dueDate, Date invoiceDate, BigDecimal amount ) throws Throwable;
}


import java.math.BigDecimal;
import java.util.Date;

import com.google.gwt.user.client.rpc.AsyncCallback;


public interface InvoiceServiceAsync {
String createInvoice(String invoiceNo, Long clientCustomerId, Date
dueDate, Date invoiceDate, BigDecimal amount, 

RemoteService - how to get http status of the response

[reHa]

Hi

I have implemented RemoteService and when I'm getting response in the
callback - in methods onFailure and onSuccess - how can I get Http
Status (like 200, 302 or 404) of the response.


Thanks
-
Piotr

--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

Please tell me a way to clear this problem

[Chaaru]

I am a newbye to GWT. I go thro' a referrence book from Packtpub
publications named Google Web Toolkit GWT Java ajax programming. In
chapter 2 i tried an example application. I done as they said in the
book material step by step. But it ends up in error as
 
 Unable to load module entry point class
com.packtpub.gwtbook.hellogwt.client.HelloGWT(see associated exception
for details)
Failure to load module com.packtpub.gwtbook.hellogwt.HelloGWT


I downloaded the codes from packpub publications site http://
www.packtpub.com/support , and used that codes. will any one help
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
-~--~~~~--~~--~--~---

Can I invoke RPC Methods from Java

[Steve]

Hello All,

I'm new to GWT so please forgive me if there is some obvious answer to
my problem.  I googled around for this information and came up dry.

Here is my problem.  There is an existing GWT Application that I want
to leverage in a new application that I am building.  This GWT app
uses RPC.  I was hoping to find a way to call some of its RPCs from a
seperate non-GWT Java application.

I am more familiar with using SOAP services, which provides a way to
generate a client from a service description (WSDL).  Is there
anything similar for GWT's RPC?  If there isn't, does anyone know if
it is possible to create the POSTs to the GWT servlet by hand? Are
there any utilities for this?

Thanks,

Steve

--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

Google Calendar API: NoClassDefFoundError AuthenticationException

[JesperA]

Hi!
I'm trying to get feed data from the Google Calendar API.
To the Eclipse project I have added the following libs (Java Build
Path)
gdata-calendar-2.0.jar
gdata-calendar-meta-2.0.jar
gdata-client-1.0.jar
gdata-client-meta-1.0.jar
gdata-core-1.0.jar
google-collect-1.0-rc1.jar
Google Data Plugin
GWT 1.7.0
App Engine 1.2.2

Code:
==
...
...
// Create a new Calendar service
myService = new CalendarService(My Application);
myService.setUserCredentials(sUserName, sPassword);
URL feedUrl = null;
try {
feedUrl = new URL(

http://www.google.com/calendar/feeds/default/allcalendars/
full);
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
CalendarFeed resultFeed = null;
try {
resultFeed = myService.getFeed(feedUrl,
CalendarFeed.class);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ServiceException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

for (int i = 0; i  resultFeed.getEntries().size(); i++) {
CalendarEntry entry = resultFeed.getEntries().get(i);
if (entry.getTitle().getPlainText().startsWith
(sCalendarStartsWith)) {
System.out.println(\t + 
entry.getTitle().getPlainText());

ListLink links = entry.getLinks();
for (Link link : links) {
System.out.println(\t + 
link.getRel());
System.out.println(\t + 
link.getHref());
}
setCalendarUrl(links.get(0).getHref());
}
}

...

Error:
==
The server is running at http://localhost:8080/
29-Jul-2009 14:12:35 com.google.apphosting.utils.jetty.JettyLogger
warn
WARNING: Nested in javax.servlet.ServletException: init:
java.lang.NoClassDefFoundError: com/google/gdata/util/
AuthenticationException
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
at java.lang.Class.getConstructor0(Class.java:2699)
at java.lang.Class.newInstance0(Class.java:326)
at java.lang.Class.newInstance(Class.java:308)
at org.mortbay.jetty.servlet.Holder.newInstance(Holder.java:153)
at org.mortbay.jetty.servlet.ServletHolder.getServlet
(ServletHolder.java:339)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
463)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1093)
at
com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter
(TransactionCleanupFilter.java:43)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1084)
at com.google.appengine.tools.development.StaticFileFilter.doFilter
(StaticFileFilter.java:124)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1084)
at org.mortbay.jetty.servlet.ServletHandler.handle
(ServletHandler.java:360)
at org.mortbay.jetty.security.SecurityHandler.handle
(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle
(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle
(ContextHandler.java:712)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
405)
at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle
(DevAppEngineWebAppContext.java:54)
at org.mortbay.jetty.handler.HandlerWrapper.handle
(HandlerWrapper.java:139)
at com.google.appengine.tools.development.JettyContainerService
$ApiProxyHandler.handle(JettyContainerService.java:313)
at org.mortbay.jetty.handler.HandlerWrapper.handle
(HandlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:313)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
506)
at org.mortbay.jetty.HttpConnection$RequestHandler.content
(HttpConnection.java:844)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:644)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
at org.mortbay.io.nio.SelectChannelEndPoint.run

Re: Google Calendar API: NoClassDefFoundError AuthenticationException

[JesperA]

Forgot to say...
Using the same code in a general Java application works perfect.
--~--~-~--~~~---~--~~
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: Setting Background image on panel

[Rodrigue Lagoue]

hi Nuno!
no the path .../pic.jpg was just an example.

i found out that the problem could be that the panel who supposed to have
the image background is empty. If i put some widgets on this panel, the
image background become visible. I cannot explain why.

thanks

On Wed, Jul 29, 2009 at 4:25 PM, Nuno brun...@gmail.com wrote:

 but you may be setting the wrong path... unless your css file is located on
 the same page as the html...
 otherwise you would be looking at:

 blablabal/*css*/images/bgleer.jpg from your css
 *
 *
 *and *

 blablabal/images/bgleer.jpg from your GWT/html code

 On Wed, Jul 29, 2009 at 5:22 AM, Rodrigue Lagoue 
 rlag...@googlemail.comwrote:

 Hi Ed
 at first thanks for your answer.

 1) If yes: then you have your solution as you only have to set the CSS
 name on your widget/panel through for example setStyleName(String).

 it's the first thing i tried. But it didn't work at all. here is a listing
 of the involved part in my css file:

 *.rightPanelReservedZone {*
 * **background-image: url(images/bgleer.jpg);*
 * **background-repeat: no-repeat;*
 * **background-attachment: fixed;*
 * **font-family: Arial, Helvetica, sans-serif;*
 * **font-size: 12px;*
 * **font-style: normal;*
 * **font-weight: normal;*
 * **height: 90%;*
 * **width: 85%;** *
 *}*

 and i then add a new style by calling:


 *//rightPanel.addStyleName(rightPanelReservedZone);*
 * **rightPanel.setStyleName(rightPanelReservedZone);*
 *
 *
 Like you can see, i tried the both methods, but without success.

 I thought it could be a problem with the image's path. But to my surprise,
 i the image was found as i try the following *panel.add(new
 Image(images/pic.jpg))*.





 On Wed, Jul 29, 2009 at 9:38 AM, Ed post2edb...@hotmail.com wrote:


 Do you know how to set the background-image of any html tag, like a
 DIV through CSS?

 1) If yes: then you have your solution as you only have to set the CSS
 name on your widget/panel through for example setStyleName(String).
 2) If not: please have a look at some HTML book how to do this and go
 back to 1)...

 Extra info: go through a a tutorial of GWT, as it's basically the
 first thing they explain..








 --
 Quer aprender a programar? acompanhe:
 Wants to learn GWT? Follow this blog -

 http://tcninja.blogspot.com



 


--~--~-~--~~~---~--~~
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: ImageBundle question

[myapplicationquestions]

Sorry let me rephrase the question

The images are not actually stored in a folder but we store them as
binary data in database. In that case i am assuming image bundle will
not work right?

Thanks,

On Jul 22, 5:28 am, David david.no...@gmail.com wrote:
 Hi Parag,

 An com.google.gwt.user.client.ui.ImageBundlewould be the best
 solution for your problem - as your own title suggests.
 The GWT docs contain a good explanation on how to use them

 David

 On Wed, Jul 22, 2009 at 4:47 AM,



 myapplicationquestionsparag.bhag...@cgi.com wrote:

  Hi All,

  I am creating an Org tree which will consist of @500 nodes, for each
  node i want to show an image as well. What is the best way to get all
  these images loaded? I was thinking of adding an http request in the
  src tag of the image but wanted tio know if GWT provides anyway so
  that i can combine all the images as 1 send it to the orgtree and have
  GWT parse teh image to show individual thumbnails?

  any help is appreciated.

  Thanks,
  Parag- Hide quoted text -

 - Show quoted text -
--~--~-~--~~~---~--~~
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: Google Calendar API: NoClassDefFoundError AuthenticationException

[JesperA]

After some debugging i found where the Exception is thrown:
   com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(Object,
Method, Object[], SerializationPolicy)
--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

Using class on both client and server sides

[Ice13ill]

Hello,
I'm trying to use a class (let's say Contact) on both client and
server sides (packages: com.app.client and com.app.server). For that
purpose I created a shared package (com.app.shared) in which to put
the Contact class. But gwt (client side) only sees classes in
com.app.client package. How can I use the Contact class on client side
for the com.app.shared package? Do I have to add a inherits tag in
my .gwt.xml file ?
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
-~--~~~~--~~--~--~---

Client or server?

[maarten.de...@gmail.com]

Hi,

I'm experimenting with GWT for a couple of weeks now and ran into
another question.

The question relates where to put a certain class. Classes in the
client package are translated into javascript. Classes in the server
package are executed as java (I'm using App Engine too). Say I'm
building an app with a little game. I can write the game class at
client side so that that code can be run at the client, what seems to
be correct here. At the end of the game, the game should be persisted
into the datastore. So I make it persistence capable but than the
class is needed at the server side.

What should I do now? Put it at server side and use it at client side
too? In that case, the class needs to be inherited in the .gwt.xml,
no? Or should I build two seperate classes: just send the data of the
game to the server and build the data store element from that data to
store it?

Some advice would be appreciated :)

Maarten Decat
--~--~-~--~~~---~--~~
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: Using class on both client and server sides

[Paul Robinson]

You want this in your gwt.xml file:
source path=client/
source path=shared/

Note that if any source... element appears in your gwt.xml, then the
implied client source path is not added for you - so you will need both
of the above.

Paul

Ice13ill wrote:
 Hello,
 I'm trying to use a class (let's say Contact) on both client and
 server sides (packages: com.app.client and com.app.server). For that
 purpose I created a shared package (com.app.shared) in which to put
 the Contact class. But gwt (client side) only sees classes in
 com.app.client package. How can I use the Contact class on client side
 for the com.app.shared package? Do I have to add a inherits tag in
 my .gwt.xml file ?
 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: Can I invoke RPC Methods from Java

[Trevis]

I'm also pretty new to GWT and your scenario never occurred to me.
Generally i think that it's probably not the greatest idea to try and
call the GWT RPC's from a different front end and i've not come across
anything that would give you a wsdl (or something like a wsdl) that
you could use from non GWT java app.  But, i cant think of any reason
why you couldnt make it work.

The RPC calls are just HTTP Post requests which receive a JSON
response.  Introducing JSON into a non web app seems like a red flag
to me but if you really wanted to do it, you should be able to convert
those into java objects.

I *think* that a better solution might be to just rewrite a SOAP based
webservice layer that uses the same code that the GWT services calls.
That's not a great solution either since it introduces duplication but
perhaps a better way to go would be to port the logic to a SOAP based
webservice layer and then call the SOAP service from the GTW RPC
server so that the logic only exists in one place.

Just a thought, ymmv.

On Jul 29, 9:38 am, Steve stever...@gmail.com wrote:
 Hello All,

 I'm new to GWT so please forgive me if there is some obvious answer to
 my problem.  I googled around for this information and came up dry.

 Here is my problem.  There is an existing GWT Application that I want
 to leverage in a new application that I am building.  This GWT app
 uses RPC.  I was hoping to find a way to call some of its RPCs from a
 seperate non-GWT Java application.

 I am more familiar with using SOAP services, which provides a way to
 generate a client from a service description (WSDL).  Is there
 anything similar for GWT's RPC?  If there isn't, does anyone know if
 it is possible to create the POSTs to the GWT servlet by hand? Are
 there any utilities for this?

 Thanks,

 Steve
--~--~-~--~~~---~--~~
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_historyFrame and W3C validation

[fother]

iframe src=javascript:'' id=__gwt_historyFrame style=width: 0;
height: 0;

It is possible that you violated the naming convention for this
attribute. For example, id and name attributes must begin with a
letter, not a digit.

gwt recomend use this
!DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN

but the id dont pass in W3C validation... should be a different id?
what the community think about 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
-~--~~~~--~~--~--~---

Re: Client or server?

[Nuno]

a class in the client sive can also be used in the server side...just make
it implements Serializable and send it back to the server with the RPC
services.

Also note that as the classes in the client package are going to become
javascript, they don't implement all of the JRE.
That may be also a factor to know if you should put this on the client
package.

On Wed, Jul 29, 2009 at 12:07 PM, maarten.de...@gmail.com 
maarten.de...@gmail.com wrote:


 Hi,

 I'm experimenting with GWT for a couple of weeks now and ran into
 another question.

 The question relates where to put a certain class. Classes in the
 client package are translated into javascript. Classes in the server
 package are executed as java (I'm using App Engine too). Say I'm
 building an app with a little game. I can write the game class at
 client side so that that code can be run at the client, what seems to
 be correct here. At the end of the game, the game should be persisted
 into the datastore. So I make it persistence capable but than the
 class is needed at the server side.

 What should I do now? Put it at server side and use it at client side
 too? In that case, the class needs to be inherited in the .gwt.xml,
 no? Or should I build two seperate classes: just send the data of the
 game to the server and build the data store element from that data to
 store it?

 Some advice would be appreciated :)

 Maarten Decat
 



-- 
Quer aprender a programar? acompanhe:
Wants to learn GWT? Follow this blog -

http://tcninja.blogspot.com

--~--~-~--~~~---~--~~
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 I invoke RPC Methods from Java

[Nuno]

Just to correct something...i dont know if you can call these rpc services
from another java application, but GWT does not use JSON on their RPC calls.
it is possible to work with json, but the default value are serialized
objects.

On Wed, Jul 29, 2009 at 12:11 PM, Trevis trevistho...@gmail.com wrote:


 I'm also pretty new to GWT and your scenario never occurred to me.
 Generally i think that it's probably not the greatest idea to try and
 call the GWT RPC's from a different front end and i've not come across
 anything that would give you a wsdl (or something like a wsdl) that
 you could use from non GWT java app.  But, i cant think of any reason
 why you couldnt make it work.

 The RPC calls are just HTTP Post requests which receive a JSON
 response.  Introducing JSON into a non web app seems like a red flag
 to me but if you really wanted to do it, you should be able to convert
 those into java objects.

 I *think* that a better solution might be to just rewrite a SOAP based
 webservice layer that uses the same code that the GWT services calls.
 That's not a great solution either since it introduces duplication but
 perhaps a better way to go would be to port the logic to a SOAP based
 webservice layer and then call the SOAP service from the GTW RPC
 server so that the logic only exists in one place.

 Just a thought, ymmv.

 On Jul 29, 9:38 am, Steve stever...@gmail.com wrote:
  Hello All,
 
  I'm new to GWT so please forgive me if there is some obvious answer to
  my problem.  I googled around for this information and came up dry.
 
  Here is my problem.  There is an existing GWT Application that I want
  to leverage in a new application that I am building.  This GWT app
  uses RPC.  I was hoping to find a way to call some of its RPCs from a
  seperate non-GWT Java application.
 
  I am more familiar with using SOAP services, which provides a way to
  generate a client from a service description (WSDL).  Is there
  anything similar for GWT's RPC?  If there isn't, does anyone know if
  it is possible to create the POSTs to the GWT servlet by hand? Are
  there any utilities for this?
 
  Thanks,
 
  Steve
 



-- 
Quer aprender a programar? acompanhe:
Wants to learn GWT? Follow this blog -

http://tcninja.blogspot.com

--~--~-~--~~~---~--~~
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: Not able to use 2 different sessions of different users

[Juraj Vitko]

Then you have to put the session ID into the URL when the browser is
making a request on behalf of you - for example, you want your user to
display a private (password protected) image, or download a private
document.

Other than that, your f) is my c) without using the cookies as
persistent storage.


On Jul 28, 5:02 pm, brett.wooldridge brett.wooldri...@gmail.com
wrote:
 Option f) don't use session cookies (or servlet sessions).

 1) Login to the server via RPC call.
 2) Successful login RPC returns a session ID, put the session ID in a
 Java static or JS global variable.
 3) Pass the session ID in all RPC calls where it matters.
 4) Profit.

 Your server should be as stateless (session-less) as possible anyway.

 -Brett

 On Jul 25, 6:06 pm, Juraj Vitko juraj.vi...@gmail.com wrote:

  a) start your FF with -P and create different profiles, then start it
  with -P --no-remote and pick a profile - profiles don't share session
  cookies. (PITA, only FF)

  b) use virtualization and run one FF and one IE8 in each instance
  (requires RAM)

  c) bake your own session cookies - when your app starts, pull the
  cookie inside javascript, then use the cookie from there when
  communicating with the server. When you open another browser window
  and log out/in, the cookie changes, but your app in previous window
  will use the javascript one. (Dirty)

  d) log out / log in always to test different sessions (PITA)

  e) perhaps there are some browser extensions for IE and FF that can
  handle session cookie dynamic alternation (Weird)

  My app uses c), but I don't rely on it, I use d) when developing for
  one user role, then for heavier multi-role testing I use b).

  J.

  On Jul 24, 8:20 am, vkm veerareddykiranm...@gmail.com wrote:

   Hi,

   I have a problem with GWT and Firefox 3 and IE 8 browsers.

   I have an application developed in GWT.
   1. I open  Firefox / IE browser and login with  valid credentials and
   it works fine.

   2. I keep this session open and open other new Firefox / IE Browser
   window and i login with different  valid credentials.

   Now in the browser opened in #1 takes the credentials of the #2
   browser.

   Note 1: I donot see this issue if I run my application with  2
   different ports in hosted mode from Eclipse.

   Note 2: This issues is not Observer in IE 6.

   can you please let me know how to solve this issue or do we have any
   workaround for this issue.


--~--~-~--~~~---~--~~
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: Using class on both client and server sides

[Ice13ill]

That worked... thanks a lot :)

On Jul 29, 6:10 pm, Paul Robinson ukcue...@gmail.com wrote:
 You want this in your gwt.xml file:
     source path=client/
     source path=shared/

 Note that if any source... element appears in your gwt.xml, then the
 implied client source path is not added for you - so you will need both
 of the above.

 Paul

 Ice13ill wrote:
  Hello,
  I'm trying to use a class (let's say Contact) on both client and
  server sides (packages: com.app.client and com.app.server). For that
  purpose I created a shared package (com.app.shared) in which to put
  the Contact class. But gwt (client side) only sees classes in
  com.app.client package. How can I use the Contact class on client side
  for the com.app.shared package? Do I have to add a inherits tag in
  my .gwt.xml file ?
  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: Using class on both client and server sides

[Nuno]

Also, if you class is just a pojo you dont really need to create it in two
places...
the server code can access all of your client code.
You just need to make the classes you want to transport from client to
server or vice versa.

In your example Contact may stay in the client package, and if you need to
send a Contact object to the server, or make the server
send it to you, just make this class Serializable.


On Wed, Jul 29, 2009 at 12:10 PM, Paul Robinson ukcue...@gmail.com wrote:


 You want this in your gwt.xml file:
source path=client/
source path=shared/

 Note that if any source... element appears in your gwt.xml, then the
 implied client source path is not added for you - so you will need both
 of the above.

 Paul

 Ice13ill wrote:
  Hello,
  I'm trying to use a class (let's say Contact) on both client and
  server sides (packages: com.app.client and com.app.server). For that
  purpose I created a shared package (com.app.shared) in which to put
  the Contact class. But gwt (client side) only sees classes in
  com.app.client package. How can I use the Contact class on client side
  for the com.app.shared package? Do I have to add a inherits tag in
  my .gwt.xml file ?
  Thanks.
 
 

 



-- 
Quer aprender a programar? acompanhe:
Wants to learn GWT? Follow this blog -

http://tcninja.blogspot.com

--~--~-~--~~~---~--~~
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: Stack overflow at line :0 (Hosted mode memory error)

[Trevis]

Yeah, it doesn't seem to cause any problems but it sure is annoying.
I guess using the trunk build would be less traumatic than switching
to linux. Someday hopefully we'll all be on linux but we're not quit
there yet.

Trevis

On Jul 28, 12:24 pm, Paul Robinson ukcue...@gmail.com wrote:
 You could use trunk instead of GWT 1.7, and then use OOPHM so you can
 use firefox for hosted 
 mode.http://code.google.com/p/google-web-toolkit/wiki/UsingOOPHM

 Apart from being annoying, I found that error message didn't cause any
 problems. I stopped using windows though, so the problem went away :)

 HTH
 Paul

 Trevis wrote:
  I've been developing in GWT for about 3 weeks now. At first i just
  wanted to get my feet wet and maybe port a minor dynamic piece of my
  site to GWT but i'm so blown away by the technology that i'm
  considering a full UI port.

  So far the one issues that i can not seem to resolve is this Stack
  overflow at line :0 popup message that happens when i launch the code
  in hosted mode.  I know that i'm not the only one who has the problem
  and i've seen blog posts where people talk about having resolved it by
  modifying the memory settings that it uses but nothing seems to work
  for me.

  I'm using Eclipse and have seen this message with GWT 1.6 and 1.7.
  The hosted browser takes a long time to render my content and then i
  get that popup.  It works fine if i compile it and hit it with a real
  browser.  It seems strange to me that the popup says Microsoft
  Internet Explorer but i guess that's what's being launched
  internally.  How do i make this go away?
--~--~-~--~~~---~--~~
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: Google analytics integration

[Juraj Vitko]

I have not implemented Analytics in GWT yet, but it seems that unless
you want to track dynamic pages inside your GWT app, you may just
include the urchin.js script plus the trigger scriptlet (possibly
wrapped in try { } catch) in you host HTML page.


On Jul 28, 7:22 pm, makoki iagoto...@gmail.com wrote:
 We had recently discovered a bug in our application that came out to
 be a problem with google analytics integration and liked to know if
 someone had any idea for a better way to integrate GA with GWT. We've
 been using GA in out GWT application for quite a time (nearly a year)
 without a problem but today we discovered that there's a problem with
 IE6 and GA when we browse the application through localhost or any
 hostname that hasn't a complete domain (i.e. example.com) so browsing
 our app throughhttp://localhost/myapporhttp://netbiosname/myapp
 raises the problem otherwise the integration works seamlesly, if we
 use the IP or the public domain.
 We've been tracking down the problem until we found it was the
 _trackEvent(c,v,d,b) method of GA that was causing the problem (we've
 found it empirically :P)
 We've used this explanation to integrate google 
 analyticshttp://code.google.com/p/gwt-examples/wiki/project_UrchinTracker

 The ga.js script we downloaded directly from google last november more
 or less and we're currently using GWT 1.7.0 , all is working fine
 except in the case explained above.
 Any idea what's happening? Any alternative to integrate GA?
 Thks
--~--~-~--~~~---~--~~
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 I invoke RPC Methods from Java

[Steve]

Thanks for the quick reply.

Unfortunately I'm in a situation where I can't/shouldn't mess with the
GWT application that I'm trying to call remotely.  It is a 3rd party
app that is distributed in WAR form.  I'd rather not have to crack it
open and add a SOAP interface into it.

Do you know of any documentation that details how I can format a POST
request to a GWT RPC service?

Thanks

On Jul 29, 10:11 am, Trevis trevistho...@gmail.com wrote:
 I'm also pretty new to GWT and your scenario never occurred to me.
 Generally i think that it's probably not the greatest idea to try and
 call the GWT RPC's from a different front end and i've not come across
 anything that would give you a wsdl (or something like a wsdl) that
 you could use from non GWT java app.  But, i cant think of any reason
 why you couldnt make it work.

 The RPC calls are just HTTP Post requests which receive a JSON
 response.  Introducing JSON into a non web app seems like a red flag
 to me but if you really wanted to do it, you should be able to convert
 those into java objects.

 I *think* that a better solution might be to just rewrite a SOAP based
 webservice layer that uses the same code that the GWT services calls.
 That's not a great solution either since it introduces duplication but
 perhaps a better way to go would be to port the logic to a SOAP based
 webservice layer and then call the SOAP service from the GTW RPC
 server so that the logic only exists in one place.

 Just a thought, ymmv.

 On Jul 29, 9:38 am, Steve stever...@gmail.com wrote:

  Hello All,

  I'm new to GWT so please forgive me if there is some obvious answer to
  my problem.  I googled around for this information and came up dry.

  Here is my problem.  There is an existing GWT Application that I want
  to leverage in a new application that I am building.  This GWT app
  uses RPC.  I was hoping to find a way to call some of its RPCs from a
  seperate non-GWT Java application.

  I am more familiar with using SOAP services, which provides a way to
  generate a client from a service description (WSDL).  Is there
  anything similar for GWT's RPC?  If there isn't, does anyone know if
  it is possible to create the POSTs to the GWT servlet by hand? Are
  there any utilities for this?

  Thanks,

  Steve
--~--~-~--~~~---~--~~
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: declarative way to build/layout UI

[Juraj Vitko]

Hi Brett,

I've already designed, implemented and used a similar framework - use
XML to configure and drive Java components into an UI (not related to
GWT).

In the end, you may come to an conclusion, that configuring Java with
XML is not the right thing to do, because you are losing the static
typing and the self awarenness of the Java language, so well
supported by tools like Ecplise.

Imagine the XML reaching sizable proportions - how manageable will it
be? In Eclipse, you do Ctrl+T on a type or function, Ctrl+Alt+H on a
function, or a Java-search on a type and you know everything. You can
also refactor, etc.

Whith XML approach, you first need to evolve the supporting tools, and
it could be a long path. This is not to discourage you, just to
(possibly) provide some insight I've learned by experience.

I currently use java annotations where possible, altough they are a
bit limited, mainly because they don't support inheritance, and cannot
be instantiated.
But annotations stay glued to the Java code, so if it changes, the
annotations adapt (or break visibly).

J.


On Jul 15, 5:40 am, brett.wooldridge brett.wooldri...@gmail.com
wrote:
 On second reading, what is that UIBinder doesn't do that you want it
 to do?

 It can do layout:

 ui:UiBinder
   xmlns:ui='urn:ui:com.google.gwt.uibinder'
   xmlns:g='urn:import:com.google.gwt.user.client.ui'
   g:HTMLPanel
     Hello, g:ListBox ui:field='listBox'/.
   /g:HTMLPanel
 /ui:UiBinder

 And even raw layout:

 ui:UiBinder xmlns:ui='urn:ui:com.google.gwt.uibinder'
   div
     Hello, span ui:field='nameSpan'/.
   /div
 /ui:UiBinder

 It instantiates the controls (ListBox in this case), and automatically
 binds them to annotated fields:

 @UiField ListBox listBox;

 Certainly because nobody outside of Google has seen UIBinder it is
 early to say what it is or is not capable of, but from my reading of
 the proposal it would seem the basics of layout, instantiation, and
 initialization are covered.  If you want code-generation and the
 ability to intermingle layout with code in the same file, certainly
 UIBinder isn't the tool, but I would argue that's because doing so
 isn't best practice.

 On Jul 15, 12:27 pm, brett.wooldridge brett.wooldri...@gmail.com
 wrote:

  If that's what you're after, I would suggest looking at Kiyaa.  It
  seems the most robust implementation out there.

  On Jul 14, 11:28 pm, Ainata-Leb kassem.alsayed@gmail.com wrote:

   Thanks for the info guys, but with the UIBinder it looks like we are
   going back to html. What about instantiation/initialization/laying out
   GWT widgets?

   Thanks.

   On Jul 13, 8:50 am, brett.wooldridge brett.wooldri...@gmail.com
   wrote:

I'm waiting for UIBinder as well, but this project seems full featured
and was used on a large project:

   http://code.google.com/p/kiyaa/

If the Google guys can't surface UIBinder soon, I may bite the bullet
and use Kiyaa now and convert later.  The markup looks fairly similar
between them.

Brett

On Jul 13, 5:52 pm, mars1412 martin.trum...@24act.at wrote:

 maybe UI-binder is what you are looking 
 for:http://code.google.com/p/google-web-toolkit-incubator/wiki/UiBinder

 On Jul 12, 4:38 pm, Ainata-Leb kassem.alsayed@gmail.com wrote:

  Is the GWT team working on a declarative way to build/layout UI? 
  Some
  XML based way similar to Flex MXML. Or does anyone know if there is 
  a
  GWT lib that does that?


--~--~-~--~~~---~--~~
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: Handling servre side exceptions and displaying precise error messages on the client

[Paul Robinson]

If you're using RPC, then you should make sure that your server will
only throw exceptions that are declared in the throws cause of the
service interface method (or exceptions that are a subtype of whatever
is declared).

This means catching exceptions server-side and re-throwing an
appropriate exception, as well as making sure there's a throws clause on
your service interface methods.

Gerasimos Tzoganis wrote:
 No one has an answer to this?
 It is part of my application to show to the user exactly the error, eg
 because perhaps he has submitted a misformed query, like in the error
 log I have atached. Can't I get this somehow to te client side?

  Date: Tue, 28 Jul 2009 16:00:45 -0700
  Subject: Handling servre side exceptions and displaying precise
 error messages on the client
  From: geras...@hotmail.com
  To: Google-Web-Toolkit@googlegroups.com
 
 
  I am trying to create an application using jena API and gwt. How can I
  get an exception from the server log displayed on the client? To be
  more specific: Right now I get on the client the standard message of
  unexpected exceptions
  com.google.gwt.user.client.rpc.StatusCodeException: The call failed
  on the server; see server log for details.
 
  On the server log:
  [WARN] StandardContext[]Exception while dispatching incoming RPC call
  com.google.gwt.user.server.rpc.UnexpectedException: Service method
  'public abstract java.lang.String
  com.diplomatiki.mypackage.client.MyService.myMethod2
  (java.lang.String,java.lang.String)' threw an unexpected exception:
  com.hp.hpl.jena.query.QueryParseException: Lexical error at line 1,
  column 10. Encountered: EOF after : dfasfFSFS
 
  ...
  ...
 
  Caused by: com.hp.hpl.jena.query.QueryParseException: Lexical error at
  line 1, column 10. Encountered: EOF after : dfasfFSFS
  at com.hp.hpl.jena.sparql.lang.ParserSPARQL.perform(ParserSPARQL.java:
  95)
  at com.hp.hpl.jena.sparql.lang.ParserSPARQL.parse(ParserSPARQL.java:
  39)
  at com.hp.hpl.jena.query.QueryFactory.parse(QueryFactory.java:129)
  at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:72)
  at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:43)
  at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:31)
 
  I want to display the actual error on the client side (or even better
  a description of my own), is that possible?
 
  I have read the documentation and found no way to do this. I searched
  the forum and there was a solution based on serializableexception,
  which is deprecated now.
 
  Please help me with this one, I would appreciate it much.
 
  Thanks,
  Gerasimos
 
 
 

--~--~-~--~~~---~--~~
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: Problem with serializing Date in map

[Juraj Vitko]

The problem with 'Object' stuffed into a type you send via RPC is,
that you can then use this 'Object' to transfer only types otherwise
found and thus known by the RPC registry.
You can create a dummy function in your RPC service, give it a
parameter class Dummy, and in this class you can enumerate (by a
simple field member declaration) all the types of objects you want to
be able to carry in the 'Object' reference above.
That way the RPC registry will learn about them.


On Jul 25, 7:24 am, ramraj sriramaraju2...@gmail.com wrote:
 Hi all,

 I am new to this rpc,i facing a problem with Date type,I have one
 methods that takes MapString,Object
 argument,when i am trying to send to Date as value for that  map i am
 getting exception like

 java.lang.reflect.InvocationTargetException
 java.lang.AssertionError: Not enough methods, expecting 3 saw 2

 If a change to MapString,Date it is working fine

 please give suggessions,
--~--~-~--~~~---~--~~
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: Handling servre side exceptions and displaying precise error messages on the client

[Juraj Vitko]

declare you own IsSerializable exception type, catch exceptions in
server code, and then throw this exception with a message for the
client (catch it on the client side).

I am currently thinking about how to best transfer exceptions from
client code into the server - one can't rely on users to report all
the client problems.


On Jul 29, 1:00 am, gerry geras...@hotmail.com wrote:
 I am trying to create an application using jena API and gwt. How can I
 get an exception from the server log displayed on the client? To be
 more specific: Right now I get on the client the standard message of
 unexpected exceptions
 com.google.gwt.user.client.rpc.StatusCodeException: The call failed
 on the server; see server log for details.

 On the server log:
 [WARN] StandardContext[]Exception while dispatching incoming RPC call
 com.google.gwt.user.server.rpc.UnexpectedException: Service method
 'public abstract java.lang.String
 com.diplomatiki.mypackage.client.MyService.myMethod2
 (java.lang.String,java.lang.String)' threw an unexpected exception:
 com.hp.hpl.jena.query.QueryParseException: Lexical error at line 1,
 column 10.  Encountered: EOF after : dfasfFSFS

 ...
 ...

 Caused by: com.hp.hpl.jena.query.QueryParseException: Lexical error at
 line 1, column 10.  Encountered: EOF after : dfasfFSFS
         at com.hp.hpl.jena.sparql.lang.ParserSPARQL.perform(ParserSPARQL.java:
 95)
         at com.hp.hpl.jena.sparql.lang.ParserSPARQL.parse(ParserSPARQL.java:
 39)
         at com.hp.hpl.jena.query.QueryFactory.parse(QueryFactory.java:129)
         at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:72)
         at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:43)
         at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:31)

 I want to display the actual error on the client side (or even better
 a description of my own), is that possible?

 I have read the documentation and found no way to do this. I searched
 the forum and there was a solution based on serializableexception,
 which is deprecated now.

 Please help me with this one, I would appreciate it much.

 Thanks,
 Gerasimos
--~--~-~--~~~---~--~~
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: Handling servre side exceptions and displaying precise error messages on the client

[Gerasimos Tzoganis]

Thanks a lot.
The problem is that I can't put a throw clause in the service interface method 
(on the client side), because the exceptions I am interesting in are not part 
of gwt, but of the jena API (so there will be the error :
[ERROR] Line 19: No source code is available for type 
com.hp.hpl.jena.query.QueryParseException; did you forget to inherit a required 
module?)

But I threw the exception only on the service implementation method, without 
prior declaration in the interface method) and that seems to work so far. I 
hope this will do.

 Date: Wed, 29 Jul 2009 16:36:57 +0100
 From: ukcue...@gmail.com
 To: Google-Web-Toolkit@googlegroups.com
 Subject: Re: Handling servre side exceptions and displaying precise error 
 messages  on the client
 
 
 If you're using RPC, then you should make sure that your server will
 only throw exceptions that are declared in the throws cause of the
 service interface method (or exceptions that are a subtype of whatever
 is declared).
 
 This means catching exceptions server-side and re-throwing an
 appropriate exception, as well as making sure there's a throws clause on
 your service interface methods.
 
 Gerasimos Tzoganis wrote:
  No one has an answer to this?
  It is part of my application to show to the user exactly the error, eg
  because perhaps he has submitted a misformed query, like in the error
  log I have atached. Can't I get this somehow to te client side?
 
   Date: Tue, 28 Jul 2009 16:00:45 -0700
   Subject: Handling servre side exceptions and displaying precise
  error messages on the client
   From: geras...@hotmail.com
   To: Google-Web-Toolkit@googlegroups.com
  
  
   I am trying to create an application using jena API and gwt. How can I
   get an exception from the server log displayed on the client? To be
   more specific: Right now I get on the client the standard message of
   unexpected exceptions
   com.google.gwt.user.client.rpc.StatusCodeException: The call failed
   on the server; see server log for details.
  
   On the server log:
   [WARN] StandardContext[]Exception while dispatching incoming RPC call
   com.google.gwt.user.server.rpc.UnexpectedException: Service method
   'public abstract java.lang.String
   com.diplomatiki.mypackage.client.MyService.myMethod2
   (java.lang.String,java.lang.String)' threw an unexpected exception:
   com.hp.hpl.jena.query.QueryParseException: Lexical error at line 1,
   column 10. Encountered: EOF after : dfasfFSFS
  
   ...
   ...
  
   Caused by: com.hp.hpl.jena.query.QueryParseException: Lexical error at
   line 1, column 10. Encountered: EOF after : dfasfFSFS
   at com.hp.hpl.jena.sparql.lang.ParserSPARQL.perform(ParserSPARQL.java:
   95)
   at com.hp.hpl.jena.sparql.lang.ParserSPARQL.parse(ParserSPARQL.java:
   39)
   at com.hp.hpl.jena.query.QueryFactory.parse(QueryFactory.java:129)
   at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:72)
   at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:43)
   at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:31)
  
   I want to display the actual error on the client side (or even better
   a description of my own), is that possible?
  
   I have read the documentation and found no way to do this. I searched
   the forum and there was a solution based on serializableexception,
   which is deprecated now.
  
   Please help me with this one, I would appreciate it much.
  
   Thanks,
   Gerasimos
  
  
  
 
  

_
Έχετε Messenger; Έχετε και Windows Live. Μάθετε περισσότερα.
http://microsoft.com/windows/windowslive
--~--~-~--~~~---~--~~
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: Handling servre side exceptions and displaying precise error messages on the client

[Gerasimos Tzoganis]

Thanks for your help, it works now. I didn't throw the exception in the 
client's interface service method as this would cause an error, I threw it only 
in the implemented method on the server and returned the message to the client. 
It seems to work.
I don't actually want users to report all the client problems, I just want them 
to give an error report like 
your query was misformed, type it again correctly.
Thanks!


 Date: Wed, 29 Jul 2009 08:44:21 -0700
 Subject: Re: Handling servre side exceptions and displaying precise error  
 messages on the client
 From: juraj.vi...@gmail.com
 To: Google-Web-Toolkit@googlegroups.com
 
 
 declare you own IsSerializable exception type, catch exceptions in
 server code, and then throw this exception with a message for the
 client (catch it on the client side).
 
 I am currently thinking about how to best transfer exceptions from
 client code into the server - one can't rely on users to report all
 the client problems.
 
 
 On Jul 29, 1:00 am, gerry geras...@hotmail.com wrote:
  I am trying to create an application using jena API and gwt. How can I
  get an exception from the server log displayed on the client? To be
  more specific: Right now I get on the client the standard message of
  unexpected exceptions
  com.google.gwt.user.client.rpc.StatusCodeException: The call failed
  on the server; see server log for details.
 
  On the server log:
  [WARN] StandardContext[]Exception while dispatching incoming RPC call
  com.google.gwt.user.server.rpc.UnexpectedException: Service method
  'public abstract java.lang.String
  com.diplomatiki.mypackage.client.MyService.myMethod2
  (java.lang.String,java.lang.String)' threw an unexpected exception:
  com.hp.hpl.jena.query.QueryParseException: Lexical error at line 1,
  column 10.  Encountered: EOF after : dfasfFSFS
 
  ...
  ...
 
  Caused by: com.hp.hpl.jena.query.QueryParseException: Lexical error at
  line 1, column 10.  Encountered: EOF after : dfasfFSFS
  at 
  com.hp.hpl.jena.sparql.lang.ParserSPARQL.perform(ParserSPARQL.java:
  95)
  at com.hp.hpl.jena.sparql.lang.ParserSPARQL.parse(ParserSPARQL.java:
  39)
  at com.hp.hpl.jena.query.QueryFactory.parse(QueryFactory.java:129)
  at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:72)
  at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:43)
  at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:31)
 
  I want to display the actual error on the client side (or even better
  a description of my own), is that possible?
 
  I have read the documentation and found no way to do this. I searched
  the forum and there was a solution based on serializableexception,
  which is deprecated now.
 
  Please help me with this one, I would appreciate it much.
 
  Thanks,
  Gerasimos
  

_
Με το Windows Live, μπορείτε να οργανώνετε, να επεξεργάζεστε και να μοιράζεστε 
τις φωτογραφίες σας.
http://www.microsoft.com/hellas/windows/windowslive/products/photo-gallery-edit.aspx
--~--~-~--~~~---~--~~
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: Handling servre side exceptions and displaying precise error messages on the client

[Paul Robinson]

Catch all exceptions in the server, and throw a new exception in its
place that the client can handle. You might like to create an exception
class, put that into the throws clause, then then only throw that class
or subclasses of it.

try {
  doSomething();
} catch (QueryParseException qpe) {
  throw new MyException(qpe.getMessage());
}

Gerasimos Tzoganis wrote:
 Thanks a lot.
 The problem is that I can't put a throw clause in the service
 interface method (on the client side), because the exceptions I am
 interesting in are not part of gwt, but of the jena API (so there will
 be the error :
 [ERROR] Line 19: No source code is available for type
 com.hp.hpl.jena.query.QueryParseException; did you forget to inherit a
 required module?)

 But I threw the exception only on the service implementation method,
 without prior declaration in the interface method) and that seems to
 work so far. I hope this will do.

  Date: Wed, 29 Jul 2009 16:36:57 +0100
  From: ukcue...@gmail.com
  To: Google-Web-Toolkit@googlegroups.com
  Subject: Re: Handling servre side exceptions and displaying precise
 error messages on the client
 
 
  If you're using RPC, then you should make sure that your server will
  only throw exceptions that are declared in the throws cause of the
  service interface method (or exceptions that are a subtype of whatever
  is declared).
 
  This means catching exceptions server-side and re-throwing an
  appropriate exception, as well as making sure there's a throws clause on
  your service interface methods.
 
  Gerasimos Tzoganis wrote:
   No one has an answer to this?
   It is part of my application to show to the user exactly the error, eg
   because perhaps he has submitted a misformed query, like in the error
   log I have atached. Can't I get this somehow to te client side?
  
Date: Tue, 28 Jul 2009 16:00:45 -0700
Subject: Handling servre side exceptions and displaying precise
   error messages on the client
From: geras...@hotmail.com
To: Google-Web-Toolkit@googlegroups.com
   
   
I am trying to create an application using jena API and gwt. How
 can I
get an exception from the server log displayed on the client? To be
more specific: Right now I get on the client the standard message of
unexpected exceptions
com.google.gwt.user.client.rpc.StatusCodeException: The call failed
on the server; see server log for details.
   
On the server log:
[WARN] StandardContext[]Exception while dispatching incoming RPC
 call
com.google.gwt.user.server.rpc.UnexpectedException: Service method
'public abstract java.lang.String
com.diplomatiki.mypackage.client.MyService.myMethod2
(java.lang.String,java.lang.String)' threw an unexpected exception:
com.hp.hpl.jena.query.QueryParseException: Lexical error at line 1,
column 10. Encountered: EOF after : dfasfFSFS
   
...
...
   
Caused by: com.hp.hpl.jena.query.QueryParseException: Lexical
 error at
line 1, column 10. Encountered: EOF after : dfasfFSFS
at
 com.hp.hpl.jena.sparql.lang.ParserSPARQL.perform(ParserSPARQL.java:
95)
at com.hp.hpl.jena.sparql.lang.ParserSPARQL.parse(ParserSPARQL.java:
39)
at com.hp.hpl.jena.query.QueryFactory.parse(QueryFactory.java:129)
at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:72)
at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:43)
at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:31)
   
I want to display the actual error on the client side (or even
 better
a description of my own), is that possible?
   
I have read the documentation and found no way to do this. I
 searched
the forum and there was a solution based on serializableexception,
which is deprecated now.
   
Please help me with this one, I would appreciate it much.
   
Thanks,
Gerasimos
   
   
   
 
 
 

--~--~-~--~~~---~--~~
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: Handling servre side exceptions and displaying precise error messages on the client

[Dean S. Jones]

I will raise a minor point relaying back EXACT exceptions, with
all failure information, is not a good idea in a production
environment.

This is generally what we call Exception Information Leakage - it
exposes the underlying implementation of your servers architecture,
and certain errors are enough to give away potential sensitive
information useful to compromise your system.

One site I was using, when a DB access failed, the DB user and
password in the exception!!! ;-)
--~--~-~--~~~---~--~~
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 I invoke RPC Methods from Java

[Trevis]

I'm still pretty new to GWT but i'd probably start by watching the
messages in firebug (the firefox plugin) to see exactly what's going
back and forth.

Trevis

On Jul 29, 10:23 am, Steve stever...@gmail.com wrote:
 Thanks for the quick reply.

 Unfortunately I'm in a situation where I can't/shouldn't mess with the
 GWT application that I'm trying to call remotely.  It is a 3rd party
 app that is distributed in WAR form.  I'd rather not have to crack it
 open and add a SOAP interface into it.

 Do you know of any documentation that details how I can format a POST
 request to a GWT RPC service?

 Thanks

 On Jul 29, 10:11 am, Trevis trevistho...@gmail.com wrote:

  I'm also pretty new to GWT and your scenario never occurred to me.
  Generally i think that it's probably not the greatest idea to try and
  call the GWT RPC's from a different front end and i've not come across
  anything that would give you a wsdl (or something like a wsdl) that
  you could use from non GWT java app.  But, i cant think of any reason
  why you couldnt make it work.

  The RPC calls are just HTTP Post requests which receive a JSON
  response.  Introducing JSON into a non web app seems like a red flag
  to me but if you really wanted to do it, you should be able to convert
  those into java objects.

  I *think* that a better solution might be to just rewrite a SOAP based
  webservice layer that uses the same code that the GWT services calls.
  That's not a great solution either since it introduces duplication but
  perhaps a better way to go would be to port the logic to a SOAP based
  webservice layer and then call the SOAP service from the GTW RPC
  server so that the logic only exists in one place.

  Just a thought, ymmv.

  On Jul 29, 9:38 am, Steve stever...@gmail.com wrote:

   Hello All,

   I'm new to GWT so please forgive me if there is some obvious answer to
   my problem.  I googled around for this information and came up dry.

   Here is my problem.  There is an existing GWT Application that I want
   to leverage in a new application that I am building.  This GWT app
   uses RPC.  I was hoping to find a way to call some of its RPCs from a
   seperate non-GWT Java application.

   I am more familiar with using SOAP services, which provides a way to
   generate a client from a service description (WSDL).  Is there
   anything similar for GWT's RPC?  If there isn't, does anyone know if
   it is possible to create the POSTs to the GWT servlet by hand? Are
   there any utilities for this?

   Thanks,

   Steve
--~--~-~--~~~---~--~~
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: Save form data

[Trevis]

I dont have an example handy but i have to imagine that there are
plenty out there.  Sounds like you already have GWT creating the
forms, so i assume that you are setting the encoding type and post
method already.   I guess you have also created a FormHandler and
added that to your FormPanel.  Form there, GWT is (can be) out of the
equation. The responding server can be anything.

All you should have to do is call setName() on your form elements and
your server should be none the wiser that you are using GWT on the
front.

(I have not implemented this yet myself as i am deeply in love with
RPC, but i have been reading about using traditional forms with GWT
because i need to implement image uploading which i plan to do with
Apache Commons fileUpload)

Trevis



On Jul 29, 6:47 am, Jeremiah Moses jeremiah.mo...@gmail.com wrote:
 Hi
 I want to save some form data into my database my forms are generated using
 GWT and i already have code that interacts with my database, now my question
 is how do i interact with this code ... is RPC the only way to do it in GWT
 or is there any other way to integrate my gwt UI to this  my existing
 code can save to the database and retrive information so all i need to do is
 send the info to it using the form generated in GWT any examples with
 regards to this are welcome

 thanks

 Jeremiah Moses
--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

Admin Area protected by simple scripted password in GWT

[Nickelnext]

Hello everyone,

I'm trying to figure out how to create a small Admin Area protected by
a password (that could be hardcoded or stored in a xml file, it
doesn't matter) inside my application.

My application is basically a TabbedPanel that contains 4 or 5 panels,
some of them communicates with plain Java servlets and so on.

Now, what i need to do is a simple form that can authenticate the
admin and let him upload some files and do some other things. What i
wanted to do is to create another GWT class with some widgets inside,
but i don't know what is the best (or simply the easiest) way to do
that.

I read about using Basic or Form Tomcat Authentication, but in my case
is not possible (is it?) due to the fact that if I add the Admin Area
like a new Tab inside the TabbedPanel, with tomcat auth, every user
that would like to use my app should authenticate himself (what i
learned is that with tomcat auth you choose an entire page to
protect).

Yet, if i make another Module or try to set another Entry point
(didn't understand well how), using the Admin Area like another
application, would be more complex, and i'd prefer to create a unique
application.

I was wondering if i could use plain Java servlets, GWT servlets
(async ones), because i know that with php it would be easy to make
but i don't know how to mix php with gwt so i'd prefere to use another
method.

I hope i explained myself well, if you need any further explanation i
will give you as soon as possible.
Regards
Nickelnext
--~--~-~--~~~---~--~~
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: onSubmitComplete is not working with GWT Showcase

[Trevis]

Shot in the dark here but the first thing i would check is are you
setting the method type on your form panel? Sounds like you need to
set it to POST.  (FromPanel.METHOD_POST constant is defined for
doing this)

Trevis

On Jul 28, 10:15 pm, Simon choonchin...@gmail.com wrote:
 Hi all,

 I have a problem regarding FormPanel. Initially, i am working on
 default GWT application for submit text through textarea and upload
 file to server, all the events are handled by servlet, works pretty
 fine. However, when i switched to using the GWT Showcase framework
 (http://gwt.google.com/samples/Showcase/Showcase.html), all my
 FormPanel events having problem on onSubmitComplete, it is no respond
 at all. But if i try to send the request through URL, the servlet is
 responded and all the parameters displayed as predicted. Second thing,
 when i try compile and browse in the default IE browser (Chrome), i
 click the submit button, it popup a new page and show the correct
 servlet url, but the content is

 HTTP ERROR: 405
 HTTP method Get is not supported by this url
 RequestURI=.readmesystem/textarea
 Powered by Jetty://

 again, i try insert some parameters after textarea?Variable=Hello,
 servlet is just working fine.

 I try search the forum and i found this issue (http://code.google.com/
 p/google-web-toolkit/issues/detail?id=528), i try to remove the
 history support in the Showcase.java  History,addValueChangeHandler
 (historyHandler), it popop up more error, so i give up this method.

 Therefore, can someone give me guidance about this issue. Thanks in
 advance.
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups 
Google Web Toolkit group.
To post to this group, send email to 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: Handling servre side exceptions and displaying precise error messages on the client

[Gerasimos Tzoganis]

That's a good point. I think the previous solution of throwing a new customised 
exception when an exception is caught on the server handles with this issue. 
Besides, it is necessary for my application to inform the user that he has 
submitted a misformed query, and that he needs to reform it. So it is necessary 
to return an appropriate message to the client.

 Date: Wed, 29 Jul 2009 09:48:07 -0700
 Subject: Re: Handling servre side exceptions and displaying precise error  
 messages on the client
 From: deansjo...@gmail.com
 To: Google-Web-Toolkit@googlegroups.com
 
 
 I will raise a minor point relaying back EXACT exceptions, with
 all failure information, is not a good idea in a production
 environment.
 
 This is generally what we call Exception Information Leakage - it
 exposes the underlying implementation of your servers architecture,
 and certain errors are enough to give away potential sensitive
 information useful to compromise your system.
 
 One site I was using, when a DB access failed, the DB user and
 password in the exception!!! ;-)
  

_
Έχετε Messenger; Έχετε και Windows Live. Μάθετε περισσότερα.
http://microsoft.com/windows/windowslive
--~--~-~--~~~---~--~~
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: Admin Area protected by simple scripted password in GWT

[Trevis]

I take it that regular users for your application dont have to
authenticate, but you want the admin to login and then show him or her
a different view (a view with an admin tab)?

The question is kind of broad, i mean allowing a user to login is
pretty much nuts and bolts stuff. You put together a widget with text
and password fields, give them a button to click (or respond to the
enter key) and then make an RPC call to the server where you'd
authenticate them (using a db, text file or hard coded value or
whatever you want).  Once the RPC call returns successfully you can
rebuild the tabs or just add the admin tab.

Should be pretty straight forward. Do you have a more specific
problem?

Trevis

On Jul 29, 12:00 pm, Nickelnext nickeln...@gmail.com wrote:
 Hello everyone,

 I'm trying to figure out how to create a small Admin Area protected by
 a password (that could be hardcoded or stored in a xml file, it
 doesn't matter) inside my application.

 My application is basically a TabbedPanel that contains 4 or 5 panels,
 some of them communicates with plain Java servlets and so on.

 Now, what i need to do is a simple form that can authenticate the
 admin and let him upload some files and do some other things. What i
 wanted to do is to create another GWT class with some widgets inside,
 but i don't know what is the best (or simply the easiest) way to do
 that.

 I read about using Basic or Form Tomcat Authentication, but in my case
 is not possible (is it?) due to the fact that if I add the Admin Area
 like a new Tab inside the TabbedPanel, with tomcat auth, every user
 that would like to use my app should authenticate himself (what i
 learned is that with tomcat auth you choose an entire page to
 protect).

 Yet, if i make another Module or try to set another Entry point
 (didn't understand well how), using the Admin Area like another
 application, would be more complex, and i'd prefer to create a unique
 application.

 I was wondering if i could use plain Java servlets, GWT servlets
 (async ones), because i know that with php it would be easy to make
 but i don't know how to mix php with gwt so i'd prefere to use another
 method.

 I hope i explained myself well, if you need any further explanation i
 will give you as soon as possible.
 Regards
 Nickelnext
--~--~-~--~~~---~--~~
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: Save form data

[Trevis]

...calling setName(foo) on things like TextBox will cause GWT to
render an html input element with name=foo.

On Jul 29, 11:59 am, Trevis trevistho...@gmail.com wrote:
 I dont have an example handy but i have to imagine that there are
 plenty out there.  Sounds like you already have GWT creating the
 forms, so i assume that you are setting the encoding type and post
 method already.   I guess you have also created a FormHandler and
 added that to your FormPanel.  Form there, GWT is (can be) out of the
 equation. The responding server can be anything.

 All you should have to do is call setName() on your form elements and
 your server should be none the wiser that you are using GWT on the
 front.

 (I have not implemented this yet myself as i am deeply in love with
 RPC, but i have been reading about using traditional forms with GWT
 because i need to implement image uploading which i plan to do with
 Apache Commons fileUpload)

 Trevis

 On Jul 29, 6:47 am, Jeremiah Moses jeremiah.mo...@gmail.com wrote:

  Hi
  I want to save some form data into my database my forms are generated using
  GWT and i already have code that interacts with my database, now my question
  is how do i interact with this code ... is RPC the only way to do it in GWT
  or is there any other way to integrate my gwt UI to this  my existing
  code can save to the database and retrive information so all i need to do is
  send the info to it using the form generated in GWT any examples with
  regards to this are welcome

  thanks

  Jeremiah Moses
--~--~-~--~~~---~--~~
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: Admin Area protected by simple scripted password in GWT

[Nickelnext]

Hello

You suggest that when the callback gets the Onsuccess and the user is
valid, i can simply add a new tab or panele or whatever making the
Admin Area visible?

Your solution would be perfect, and i thought of it yet but my
question is: isn't it easily hack-able? I mean, inside the javascript
that gwt compiles there would be also the admin area, so a malicious
user could, with some tricks, retrieve the content and do some ugly
things with my app, couldn't he?

What i mean is: is this easy and fast solution also secure? Would be
the part of the admin area untouchable if the user doesn't
authenticate himself or there should be a possibility? Because if i'm
not wrong, the solution you suggest isn't like one with, for example,
a PHP page that renders a new html page with the private content, but
the content is himself into the Application, cause the Admin Area tab
(or else) is in the client code (and so in whoever's open my app
browser).

Sorry for my bad bad english, hope you get the point.
Thank you!
Nickelnext
--~--~-~--~~~---~--~~
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: Multiple pages question

[Trevis]

I think that the issue that you're running into here is one of
mindset.  Web developers think in terms of pages but a Swing/MFC/thick
client developers dont. GWT is kind of a bridge between the two.

From what i've seen, the GWT way of doing things is to clear out the
visible components and render your new components to give the user a
different view. (like you said)  Now is your question how can i
create these two views in separate java files (which is an
architecture question) or how can i separate widget (element)
composition from Java which is almost a philosophical question
because GWT (at least as far as i've seen) is not designed to operate
that way.  (which i believe is a design feature, not an oversight)

One other fly in the ointment that you may not have stumbled into yet
which will blow your mind at first is using the back button.  There is
lots of documentation out there on using GWT History and it's really a
different way of thinking coming from a web developer perspective.


...if you are asking the architecture question, so far i havent seen
much yet on best practices for organizing your classes and widgets but
you should start by searching for 'GWT Custom widgets' and
specifically checking out the Composite class.  That should get your
started in how you can organize and compose your various views.

Disclaimer... I've only been using GWT for about a month now but i've
been doing Swing/Visual C++/VB gui's for a long time and to me GWT
fits as naturally as anything i've ever seen from a web framework
perspective. But it is very different from Swing, Spring MVC, JSF and
the like.

Trevis

On Jul 29, 5:34 am, maarten.de...@gmail.com
maarten.de...@gmail.com wrote:
 Hi,

 I've been trying out GWT for a couple of weeks now and stumbled upon a
 beginner's question relating multiple pages.

 For example, let's suppose an application with users where you have an
 application page, a login page and a register page. Using GWT for the
 application page speaks for itself, but what about the other pages?

 I've read the other topics about this problem in the group. It seems
 the proper GWT solution is to clear window and load another GUI there.
 This would actually wrap all the pages within the application. I can
 see how this solution would work, but then you lack a lot of usefull
 HTML pages that lay out the login and register forms. This way, making
 the lay-out of the page cannot be seperated from coding the
 application, at least not in HTML vs GWT/Java.

 Is there another way of working for this? One that does permit to
 seperate page lay-out and coding?

 Greets,

 Maarten Decat
--~--~-~--~~~---~--~~
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 plugin for Eclipse 3.5 (Galileo)

[petB]

On Jul 28, 10:14 pm, Juraj Vitko juraj.vi...@gmail.com wrote:
 If you know anything about software development, then you know that
 any and all development time estimation is just a wild guess.

It is still a good practice to provide release estimates, whatever
imprecise.

I just finished one (not web oriented) project and would like to start
a new one with GWT. I need to decide if to instal Eclipse 3.5 and wait
for GWT plugin or go with Eclipse 3.4. As I want to read some
literature before, waiting  a week or more is not a problem. Not
having this information, downgrading Eclipse to 3.4 and then upgrading
it again within few days would be annoying.

--~--~-~--~~~---~--~~
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: Admin Area protected by simple scripted password in GWT

[Trevis]

Ah, I understand your concern.

Hm. Maybe someone with more GWT experience can chime in on this but
i'm thinking this.  It's not like you have a simple hidden DIV in the
browser that you're deciding to show dynamically.  You have a
javascript function that generates that div, which i'd imagine would
be a lot tricker to hack (though probably not impossible if the hacker
were properly motivated) Even still, what would the hacker have access
to at that point? He'd see the admin tab... but what could he do with
it?  You should implement your security so that the admin RPC methods
also require some kind of authentication.  This way, a determined
hacker may be able to see the tab but he still couldn't do anything
with it.  Not knowing your exact application, this may have other
complications but that is the way that i'd probably be thinking of
doing it.

I'd love to hear some alternative solutions as i'm pretty much in the
same boat as you are.  I'm porting my first major application to GWT
and i've been going with the assumption that server based security for
the admin RPC's combined with obfuscated javascript will give me a
similar level of security to what i would get by traditional means.
(though arguably better since there will be no history trail to the
admin pages left in the browser since gwt allows you to not cause any
browser history footprint that you don't deliberately generate)

On Jul 29, 12:27 pm, Nickelnext nickeln...@gmail.com wrote:
 Hello

 You suggest that when the callback gets the Onsuccess and the user is
 valid, i can simply add a new tab or panele or whatever making the
 Admin Area visible?

 Your solution would be perfect, and i thought of it yet but my
 question is: isn't it easily hack-able? I mean, inside the javascript
 that gwt compiles there would be also the admin area, so a malicious
 user could, with some tricks, retrieve the content and do some ugly
 things with my app, couldn't he?

 What i mean is: is this easy and fast solution also secure? Would be
 the part of the admin area untouchable if the user doesn't
 authenticate himself or there should be a possibility? Because if i'm
 not wrong, the solution you suggest isn't like one with, for example,
 a PHP page that renders a new html page with the private content, but
 the content is himself into the Application, cause the Admin Area tab
 (or else) is in the client code (and so in whoever's open my app
 browser).

 Sorry for my bad bad english, hope you get the point.
 Thank you!
 Nickelnext
--~--~-~--~~~---~--~~
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: Admin Area protected by simple scripted password in GWT

[Isaac Truett]

http://code.google.com/p/google-web-toolkit-incubator/wiki/LoginSecurityFAQ

This FAQ and the Security for GWT Applications article it links to should help.

- Isaac


On Wed, Jul 29, 2009 at 1:40 PM, Trevistrevistho...@gmail.com wrote:

 Ah, I understand your concern.

 Hm. Maybe someone with more GWT experience can chime in on this but
 i'm thinking this.  It's not like you have a simple hidden DIV in the
 browser that you're deciding to show dynamically.  You have a
 javascript function that generates that div, which i'd imagine would
 be a lot tricker to hack (though probably not impossible if the hacker
 were properly motivated) Even still, what would the hacker have access
 to at that point? He'd see the admin tab... but what could he do with
 it?  You should implement your security so that the admin RPC methods
 also require some kind of authentication.  This way, a determined
 hacker may be able to see the tab but he still couldn't do anything
 with it.  Not knowing your exact application, this may have other
 complications but that is the way that i'd probably be thinking of
 doing it.

 I'd love to hear some alternative solutions as i'm pretty much in the
 same boat as you are.  I'm porting my first major application to GWT
 and i've been going with the assumption that server based security for
 the admin RPC's combined with obfuscated javascript will give me a
 similar level of security to what i would get by traditional means.
 (though arguably better since there will be no history trail to the
 admin pages left in the browser since gwt allows you to not cause any
 browser history footprint that you don't deliberately generate)

 On Jul 29, 12:27 pm, Nickelnext nickeln...@gmail.com wrote:
 Hello

 You suggest that when the callback gets the Onsuccess and the user is
 valid, i can simply add a new tab or panele or whatever making the
 Admin Area visible?

 Your solution would be perfect, and i thought of it yet but my
 question is: isn't it easily hack-able? I mean, inside the javascript
 that gwt compiles there would be also the admin area, so a malicious
 user could, with some tricks, retrieve the content and do some ugly
 things with my app, couldn't he?

 What i mean is: is this easy and fast solution also secure? Would be
 the part of the admin area untouchable if the user doesn't
 authenticate himself or there should be a possibility? Because if i'm
 not wrong, the solution you suggest isn't like one with, for example,
 a PHP page that renders a new html page with the private content, but
 the content is himself into the Application, cause the Admin Area tab
 (or else) is in the client code (and so in whoever's open my app
 browser).

 Sorry for my bad bad english, hope you get the point.
 Thank you!
 Nickelnext
 


--~--~-~--~~~---~--~~
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: Admin Area protected by simple scripted password in GWT

[Trevis]

Some good info in that link, Isaac, thanks.

Do NOT attempt to use the Cookie header to transfer the sessionID
from GWT to the server; it is fraught with security issues that will
become clear in the rest of this article. You MUST transfer the
sessionID in the payload of the request. For an example of why this
can fail, see CrossSiteRequestForgery. 

Hm.  Well, ok then... i guess i should heed that warning.

The article doesn't seem to directly address Nickelnext concern about
having the admin content already in the browser though.  I mean, once
you compile the UI into javascript and the browser downloads it,
everything that the view does is there in the browser.  It seems
pretty far out there that someone could use that obfuscated javascript
mischievously but that's what hacking is all about, so i hear!

Trevis

On Jul 29, 12:46 pm, Isaac Truett itru...@gmail.com wrote:
 http://code.google.com/p/google-web-toolkit-incubator/wiki/LoginSecur...

 This FAQ and the Security for GWT Applications article it links to should 
 help.

 - Isaac

 On Wed, Jul 29, 2009 at 1:40 PM, Trevistrevistho...@gmail.com wrote:

  Ah, I understand your concern.

  Hm. Maybe someone with more GWT experience can chime in on this but
  i'm thinking this.  It's not like you have a simple hidden DIV in the
  browser that you're deciding to show dynamically.  You have a
  javascript function that generates that div, which i'd imagine would
  be a lot tricker to hack (though probably not impossible if the hacker
  were properly motivated) Even still, what would the hacker have access
  to at that point? He'd see the admin tab... but what could he do with
  it?  You should implement your security so that the admin RPC methods
  also require some kind of authentication.  This way, a determined
  hacker may be able to see the tab but he still couldn't do anything
  with it.  Not knowing your exact application, this may have other
  complications but that is the way that i'd probably be thinking of
  doing it.

  I'd love to hear some alternative solutions as i'm pretty much in the
  same boat as you are.  I'm porting my first major application to GWT
  and i've been going with the assumption that server based security for
  the admin RPC's combined with obfuscated javascript will give me a
  similar level of security to what i would get by traditional means.
  (though arguably better since there will be no history trail to the
  admin pages left in the browser since gwt allows you to not cause any
  browser history footprint that you don't deliberately generate)

  On Jul 29, 12:27 pm, Nickelnext nickeln...@gmail.com wrote:
  Hello

  You suggest that when the callback gets the Onsuccess and the user is
  valid, i can simply add a new tab or panele or whatever making the
  Admin Area visible?

  Your solution would be perfect, and i thought of it yet but my
  question is: isn't it easily hack-able? I mean, inside the javascript
  that gwt compiles there would be also the admin area, so a malicious
  user could, with some tricks, retrieve the content and do some ugly
  things with my app, couldn't he?

  What i mean is: is this easy and fast solution also secure? Would be
  the part of the admin area untouchable if the user doesn't
  authenticate himself or there should be a possibility? Because if i'm
  not wrong, the solution you suggest isn't like one with, for example,
  a PHP page that renders a new html page with the private content, but
  the content is himself into the Application, cause the Admin Area tab
  (or else) is in the client code (and so in whoever's open my app
  browser).

  Sorry for my bad bad english, hope you get the point.
  Thank you!
  Nickelnext
--~--~-~--~~~---~--~~
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: Admin Area protected by simple scripted password in GWT

[Isaac Truett]

 The article doesn't seem to directly address Nickelnext concern about
 having the admin content already in the browser though.  I mean, once
 you compile the UI into javascript and the browser downloads it,
 everything that the view does is there in the browser.  It seems
 pretty far out there that someone could use that obfuscated javascript
 mischievously but that's what hacking is all about, so i hear!

Right. Anything you write in client-side code is there, albeit
obfuscated, for any user to see. So don't hard code the secret family
recipe, write an RPC (or JSON, or whatever service) to request it from
the server and send your session ID to the server in the request. And
you'll probably want to do it all over a secure socket.


On Wed, Jul 29, 2009 at 2:09 PM, Trevistrevistho...@gmail.com wrote:

 Some good info in that link, Isaac, thanks.

 Do NOT attempt to use the Cookie header to transfer the sessionID
 from GWT to the server; it is fraught with security issues that will
 become clear in the rest of this article. You MUST transfer the
 sessionID in the payload of the request. For an example of why this
 can fail, see CrossSiteRequestForgery. 

 Hm.  Well, ok then... i guess i should heed that warning.

 The article doesn't seem to directly address Nickelnext concern about
 having the admin content already in the browser though.  I mean, once
 you compile the UI into javascript and the browser downloads it,
 everything that the view does is there in the browser.  It seems
 pretty far out there that someone could use that obfuscated javascript
 mischievously but that's what hacking is all about, so i hear!

 Trevis

 On Jul 29, 12:46 pm, Isaac Truett itru...@gmail.com wrote:
 http://code.google.com/p/google-web-toolkit-incubator/wiki/LoginSecur...

 This FAQ and the Security for GWT Applications article it links to should 
 help.

 - Isaac

 On Wed, Jul 29, 2009 at 1:40 PM, Trevistrevistho...@gmail.com wrote:

  Ah, I understand your concern.

  Hm. Maybe someone with more GWT experience can chime in on this but
  i'm thinking this.  It's not like you have a simple hidden DIV in the
  browser that you're deciding to show dynamically.  You have a
  javascript function that generates that div, which i'd imagine would
  be a lot tricker to hack (though probably not impossible if the hacker
  were properly motivated) Even still, what would the hacker have access
  to at that point? He'd see the admin tab... but what could he do with
  it?  You should implement your security so that the admin RPC methods
  also require some kind of authentication.  This way, a determined
  hacker may be able to see the tab but he still couldn't do anything
  with it.  Not knowing your exact application, this may have other
  complications but that is the way that i'd probably be thinking of
  doing it.

  I'd love to hear some alternative solutions as i'm pretty much in the
  same boat as you are.  I'm porting my first major application to GWT
  and i've been going with the assumption that server based security for
  the admin RPC's combined with obfuscated javascript will give me a
  similar level of security to what i would get by traditional means.
  (though arguably better since there will be no history trail to the
  admin pages left in the browser since gwt allows you to not cause any
  browser history footprint that you don't deliberately generate)

  On Jul 29, 12:27 pm, Nickelnext nickeln...@gmail.com wrote:
  Hello

  You suggest that when the callback gets the Onsuccess and the user is
  valid, i can simply add a new tab or panele or whatever making the
  Admin Area visible?

  Your solution would be perfect, and i thought of it yet but my
  question is: isn't it easily hack-able? I mean, inside the javascript
  that gwt compiles there would be also the admin area, so a malicious
  user could, with some tricks, retrieve the content and do some ugly
  things with my app, couldn't he?

  What i mean is: is this easy and fast solution also secure? Would be
  the part of the admin area untouchable if the user doesn't
  authenticate himself or there should be a possibility? Because if i'm
  not wrong, the solution you suggest isn't like one with, for example,
  a PHP page that renders a new html page with the private content, but
  the content is himself into the Application, cause the Admin Area tab
  (or else) is in the client code (and so in whoever's open my app
  browser).

  Sorry for my bad bad english, hope you get the point.
  Thank you!
  Nickelnext
 


--~--~-~--~~~---~--~~
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: Multiple pages question

[Ian Bambury]

You have html in your index file. You have code in your java files. How you
split everything up is your decision.

In your html host page, you could have 2 divs, defining the layout for page1
and page 2. In your GWT code, yo make one or other visible as you need them.

It might get a little unmanageable for 100 pages, so you could have html
files on the server and go and pick them up as required.

You can do both at the same time: have a basic menuing framework and pick up
html from server-side pages and slot them into part of your app's display
area. That's what my examples site does, mostly to keep all the text out of
the initial download. It also means you can easily arrange to get spidered
by search engines.

Ian

http://examples.roughian.com


2009/7/29 maarten.de...@gmail.com maarten.de...@gmail.com


 Hi,

 I've been trying out GWT for a couple of weeks now and stumbled upon a
 beginner's question relating multiple pages.

 For example, let's suppose an application with users where you have an
 application page, a login page and a register page. Using GWT for the
 application page speaks for itself, but what about the other pages?

 I've read the other topics about this problem in the group. It seems
 the proper GWT solution is to clear window and load another GUI there.
 This would actually wrap all the pages within the application. I can
 see how this solution would work, but then you lack a lot of usefull
 HTML pages that lay out the login and register forms. This way, making
 the lay-out of the page cannot be seperated from coding the
 application, at least not in HTML vs GWT/Java.

 Is there another way of working for this? One that does permit to
 seperate page lay-out and coding?

 Greets,

 Maarten Decat
 


--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

Is there any performance advantage to Grid over FlexTable

[pbyo...@gmail.com]

If I know exactly how many rows and columns I need, is there any
performance advantage to using the Grid widget over the FlexTable
widget?

Along the same lines, is there any advantage to using Grid over
HorizontalPanel, or VerticalPanel?


- - - - - - - - - - - - - - - - - - - -
Pete Yorke
Storke Brothers, LLC



--~--~-~--~~~---~--~~
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: Save form data

[Jeremiah Moses]

thanks for the response ... i have not made many of the forms made have been
just playing around with gwt for the last couple of weeks ... been using
simple forms ... and not got to point of writing a form handler yet  ...
been trying to find some example ... to make my job a bit easier ...
specialy if it has maybe even a RPC implementation for a form ...


thanks
jeremiah

On Wed, Jul 29, 2009 at 10:44 PM, Trevis trevistho...@gmail.com wrote:


 ...calling setName(foo) on things like TextBox will cause GWT to
 render an html input element with name=foo.

 On Jul 29, 11:59 am, Trevis trevistho...@gmail.com wrote:
  I dont have an example handy but i have to imagine that there are
  plenty out there.  Sounds like you already have GWT creating the
  forms, so i assume that you are setting the encoding type and post
  method already.   I guess you have also created a FormHandler and
  added that to your FormPanel.  Form there, GWT is (can be) out of the
  equation. The responding server can be anything.
 
  All you should have to do is call setName() on your form elements and
  your server should be none the wiser that you are using GWT on the
  front.
 
  (I have not implemented this yet myself as i am deeply in love with
  RPC, but i have been reading about using traditional forms with GWT
  because i need to implement image uploading which i plan to do with
  Apache Commons fileUpload)
 
  Trevis
 
  On Jul 29, 6:47 am, Jeremiah Moses jeremiah.mo...@gmail.com wrote:
 
   Hi
   I want to save some form data into my database my forms are generated
 using
   GWT and i already have code that interacts with my database, now my
 question
   is how do i interact with this code ... is RPC the only way to do it in
 GWT
   or is there any other way to integrate my gwt UI to this  my
 existing
   code can save to the database and retrive information so all i need to
 do is
   send the info to it using the form generated in GWT any examples with
   regards to this are welcome
 
   thanks
 
   Jeremiah Moses
 


--~--~-~--~~~---~--~~
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: Project setup that allows working with both hosted mode and web mode side by side?

[rintcius]

I solved the issue. This happened because I am using a different
module for development to speed up compilation in web mode. Something
like this:
module rename-to='myModule'
  inherits name='my.company.gwt.MyModule'/
  set-property name=user.agent value=gecko /
  set-property name=locale value=default /
/module

The problem was that in hosted mode I was still using the original
module which lead to the exception I mentioned in the first post of
this thread. Once I started hosted mode with this development module
i.s.o. the original module the problem was resolved and I can now
happily run hosted mode and web mode side by side.

Rintcius

--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

Mail Sample Code won't import.

[Howard Tan]

I'm a noob. But I can read. I want to load the mail sample. I went to
the readme.txt tried to follow the instructions...

--- from readme.txt
In Eclipse, go to the File menu and choose:

  File - Import... - Existing Projects into Workspace

  Browse to the directory containing this file,
  select Mail.

  Be sure to uncheck Copy projects into workspace if it is checked.

  Click Finish.
---

nada. Try it. Let me know if it works for you. Because this doesn't
make any sense to me. Help...

Thanks,
Howard
--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

Ext-GWT TreeGrid indirectly calls a GWT-RPC callback? Why?

[Pandaman]

I am using GWT-RPC to populate Ext-GWT TreeGrids with data from a
server. I am using 4 callbacks to populate 6 TreeGrids. As the
callback onSuccess function modifies the TreeGrid by inserting rows,
the TreeGridView needs to render the rows. The callback class is
called MainPnlSummaryTablesAsyncCallback.

For some reason, when it needs to determine the TreeGridView's
scroller's offsetHeight via JSNI, onSuccess or onFailure is called on
another instance of the callback in the stack trace. A copy of the
stack trace I encountered is below.

Isn't this really weird? Why is this happening?

FYI I am using Ext-GWT 2.0.1 and GWT 1.7.0 and I am using hosted mode
browser to debug this, although I am pretty sure that this is an issue
for web mode.


PnlSummaryClientDebug_as10node6 [Java Application]
com.google.gwt.dev.HostedMode at localhost:3595
Thread [main] (Suspended (breakpoint at line 403 in MainPage
$MainPnlSummaryTablesAsyncCallback))
MainPage$8(MainPage
$MainPnlSummaryTablesAsyncCallback).onSuccess
(GWTPairAggregateStringGWTTable,AggregateStringGWTTable) line:
403
MainPage$8(MainPage
$MainPnlSummaryTablesAsyncCallback).onSuccess(Object) line: 1
RequestCallbackAdapterT.onResponseReceived(Request,
Response) line: 215
Request.fireOnResponseReceivedImpl(RequestCallback) line:
264
Request.fireOnResponseReceivedAndCatch(GWT
$UncaughtExceptionHandler, RequestCallback) line: 236
Request.fireOnResponseReceived(RequestCallback) line:
227
NativeMethodAccessorImpl.invoke0(Method, Object, Object[])
line: not available [native method] [local variables unavailable]
NativeMethodAccessorImpl.invoke(Object, Object[]) line:
39
DelegatingMethodAccessorImpl.invoke(Object, Object[])
line: 25
Method.invoke(Object, Object...) line: 597
MethodAdaptor.invoke(Object, Object...) line: 103
IDispatchImpl.callMethod(CompilingClassLoader, Object,
Variant[], MethodAdaptor) line: 126
IDispatchProxy.invoke(int, int, Variant[]) line: 155
IDispatchProxy(IDispatchImpl).Invoke(int, int, int, int,
int, int, int, int) line: 294
IDispatchProxy(IDispatchImpl).method6(int[]) line: 194
COMObject.callback6(int[]) line: 117
COM.VtblCall(int, int, int, GUID, int, int, DISPPARAMS,
int, EXCEPINFO, int[]) line: not available [native method]
IDispatch.Invoke(int, GUID, int, int, DISPPARAMS, int,
EXCEPINFO, int[]) line: 64
OleAutomation.invoke(int, int, Variant[], int[], Variant)
line: 493
OleAutomation.invoke(int, Variant[]) line: 417
ModuleSpaceIE6.doInvokeOnWindow(OleAutomation, String,
Variant[]) line: 68
ModuleSpaceIE6.doInvoke(String, Object, Class?[], Object
[]) line: 153
ModuleSpaceIE6(ModuleSpace).invokeNative(String, Object,
Class?[], Object[]) line: 453
ModuleSpaceIE6(ModuleSpace).invokeNativeInt(String,
Object, Class?[], Object[]) line: 207
JavaScriptHost.invokeNativeInt(String, Object, Class?[],
Object[]) line: 75
Element$.getOffsetHeight$(Element) line: not available
El.getHeight(boolean) line: 984
TreeGridView(BufferView).getVisibleRowCount() line:
313
TreeGridView(BufferView).doRender(ListColumnData,
ListModelData, int, int, boolean, boolean) line: 189
TreeGridView(BufferView).doRender(ListColumnData,
ListModelData, int, int, boolean) line: 181
TreeGridView(GridView).renderRows(int, int) line: 1559
TreeGridView(GridView).insertRows(ListStoreModelData,
int, int, boolean) line: 1242
TreeGridView(GridView).onAdd(ListStoreModelData,
ListModelData, int) line: 1293
GridView$5.storeAdd(StoreEventModelData) line: 1179
GridView$5(StoreListenerM).handleEvent(StoreEventM)
line: 22
GridView$5(StoreListenerM).handleEvent(BaseEvent) line:
1
TreeGrid$2(BaseObservable).callListener
(ListenerBaseEvent, BaseEvent) line: 176
TreeGrid$2(BaseObservable).fireEvent(EventType, BaseEvent)
line: 96
TreeGrid$2(ListStoreM).insert(List? extends M, int,
boolean) line: 467
TreeGrid$2(ListStoreM).insert(List? extends M, int)
line: 266
TreeGridM.onAdd(TreeStoreEventM) line: 430
TreeGrid$1.storeAdd(StoreEventM) line: 123
TreeGrid$1(StoreListenerM).handleEvent(StoreEventM)
line: 22
TreeGrid$1(StoreListenerM).handleEvent(BaseEvent) line:
1
TreeStoreM(BaseObservable).callListener
(ListenerBaseEvent, BaseEvent) line: 176
TreeStoreM(BaseObservable).fireEvent(EventType,
BaseEvent) line: 96
TreeStoreM.doInsert(TreeModel, ListTreeModel, int,
boolean, boolean) line: 799
TreeStoreM.insert(ListM, int, boolean) line: 493
TreeStoreM.add(ListM, boolean) line: 163
TreeStoreM.add(M, boolean) 

Re: could not add gin the project

[r...@n]

No, I've got it there. And I'm sure I've done everything tutorial says
I have to. What else cool be wrong?
Could gin conflict with some other modules?

My SearchModule.gwt.xml
?xml version=1.0 encoding=UTF-8?
!DOCTYPE module PUBLIC -//Google Inc.//DTD Google Web Toolkit 1.7.0//
EN http://google-web-toolkit.googlecode.com/svn/tags/1.7.0/distro-
source/core/src/gwt-module.dtd
module rename-to='searchmodule'
  !-- Inherit the core Web Toolkit stuff.--
  inherits name='com.google.gwt.user.User'/

  !-- Inherit the default GWT style sheet.  You can change   --
  !-- the theme of your GWT application by uncommenting  --
  !-- any one of the following lines.--
  inherits name='com.google.gwt.user.theme.standard.Standard'/
  !-- inherits name='com.google.gwt.user.theme.chrome.Chrome'/ --
  !-- inherits name='com.google.gwt.user.theme.dark.Dark'/ --

  !-- Other module inherits  --
  !-- Inherit GWTx  --
  inherits name='com.googlecode.gwtx.Java'/
  inherits name='com.google.gwt.i18n.I18N'/
  inherits name='com.google.gwt.inject.Inject'/


  !-- Specify the app entry point class. --
  entry-point class='ru.rchervot.sanasar.client.SearchModule'/

  !-- Russian language, independent of country --
  extend-property name=locale values=ru/
/module


On Jul 28, 9:31 am, Norman Maurer nor...@apache.org wrote:
 You prolly missed to add the following line to your ProjectName.gwt.xml file:

 inherits name=com.google.gwt.inject.Inject/

 Bye,
 Norman

 2009/7/27 r...@n roman.chervot...@gmail.com:



  Hi, I've tried to add gin DI to the project, but have got an error
  below. I am using gwt 1.7.0 on linux + guice 2.0 + latest gin. I've
  followed all steps in gin tutorial, but when tried to run my app have
  got an exception. I could not understand what is wrong and where to
  look for a solution.
  Please help.
  Thanks in advance.

  [ERROR] Failed to create an instance of
  'ru.rchervot.sanasar.client.SearchModule' via deferred binding
  java.lang.RuntimeException: Deferred binding failed for
  'ru.rchervot.sanasar.client.MyWidgetGinjector' (did you forget to
  inherit a required module?)
         at com.google.gwt.dev.shell.GWTBridgeImpl.create(GWTBridgeImpl.java:
  43)
         at com.google.gwt.core.client.GWT.create(GWT.java:91)
         at ru.rchervot.sanasar.client.SearchModule.init(SearchModule.java:
  66)

  -
  SearchModule.java(SearchModule is my EntryPoint class) line 66:
         private final MyWidgetGinjector injector = GWT.create
  (MyWidgetGinjector.class);
  

  MyWidgetClientModule.java:

  public class MyWidgetClientModule extends AbstractGinModule {

        �...@override
   protected void configure() {
     bind(MainPresenter.Display.class).to(MainView.class);
   }

  }
--~--~-~--~~~---~--~~
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: Save form data

[Trevis]

I think that you may be mixing things up a bit.  RPC doesn't use true
html forms.  So what would look to a user to be a form in a typical
GWT application would just be a group of input html elements and a
button. The button doesnt submit a form, it has a click handler.  The
handler makes an RPC call to passing the user entered data to the
server.

GWT does have a FormPanel widget thought which allows you to make true
HTML forms.  Those can submit to any webserver configured to handle
the http request.  I think that these kinds of forms are included to
support legacy back ends and to do things that GWT RPC cant like, oh
say file upload.

ymmv, i'm still pretty green with GWT but i'm coming up to speed.

Trevis

On Jul 29, 1:34 pm, Jeremiah Moses jeremiah.mo...@gmail.com wrote:
 thanks for the response ... i have not made many of the forms made have been
 just playing around with gwt for the last couple of weeks ... been using
 simple forms ... and not got to point of writing a form handler yet  ...
 been trying to find some example ... to make my job a bit easier ...
 specialy if it has maybe even a RPC implementation for a form ...

 thanks
 jeremiah

 On Wed, Jul 29, 2009 at 10:44 PM, Trevis trevistho...@gmail.com wrote:

  ...calling setName(foo) on things like TextBox will cause GWT to
  render an html input element with name=foo.

  On Jul 29, 11:59 am, Trevis trevistho...@gmail.com wrote:
   I dont have an example handy but i have to imagine that there are
   plenty out there.  Sounds like you already have GWT creating the
   forms, so i assume that you are setting the encoding type and post
   method already.   I guess you have also created a FormHandler and
   added that to your FormPanel.  Form there, GWT is (can be) out of the
   equation. The responding server can be anything.

   All you should have to do is call setName() on your form elements and
   your server should be none the wiser that you are using GWT on the
   front.

   (I have not implemented this yet myself as i am deeply in love with
   RPC, but i have been reading about using traditional forms with GWT
   because i need to implement image uploading which i plan to do with
   Apache Commons fileUpload)

   Trevis

   On Jul 29, 6:47 am, Jeremiah Moses jeremiah.mo...@gmail.com wrote:

Hi
I want to save some form data into my database my forms are generated
  using
GWT and i already have code that interacts with my database, now my
  question
is how do i interact with this code ... is RPC the only way to do it in
  GWT
or is there any other way to integrate my gwt UI to this  my
  existing
code can save to the database and retrive information so all i need to
  do is
send the info to it using the form generated in GWT any examples with
regards to this are welcome

thanks

Jeremiah Moses
--~--~-~--~~~---~--~~
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: Stack overflow at line :0 (Hosted mode memory error)

[Keith Platfoot]

Hi Trevis,
If you're getting a stack overflow, you could try increasing the Java stack
size using the -xss JVM argument.  In Eclipse, open the launch
configurations dialog (Run - Run Configurations...) and select your launch
configuration from the tree on the left.  Then switch to the Arguments tab
and in the VM arguments field, add something like:

-Xss512k

This increases your stack size from the default (128k) to 512k.

Let me know if that doesn't work for you...

Keith

On Tue, Jul 28, 2009 at 10:28 AM, Trevis trevistho...@gmail.com wrote:


 I've been developing in GWT for about 3 weeks now. At first i just
 wanted to get my feet wet and maybe port a minor dynamic piece of my
 site to GWT but i'm so blown away by the technology that i'm
 considering a full UI port.

 So far the one issues that i can not seem to resolve is this Stack
 overflow at line :0 popup message that happens when i launch the code
 in hosted mode.  I know that i'm not the only one who has the problem
 and i've seen blog posts where people talk about having resolved it by
 modifying the memory settings that it uses but nothing seems to work
 for me.

 I'm using Eclipse and have seen this message with GWT 1.6 and 1.7.
 The hosted browser takes a long time to render my content and then i
 get that popup.  It works fine if i compile it and hit it with a real
 browser.  It seems strange to me that the popup says Microsoft
 Internet Explorer but i guess that's what's being launched
 internally.  How do i make this go away?




 


--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

Managing localized strings on both server and client

[omsrobert]

I have been extending the GWT Constants interface to manage my
localized strings with great success on the client.  However, there
are strings on the server that must also be localized.  It would be
nice to share the constants between the client and server.  Has anyone
done this?  If so, how?
--~--~-~--~~~---~--~~
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: CSS-ToolBar

[Chad]

Muhannad,

Take a look at the CSS that is provided by the GWT team. They have 3
themes available. You can look at the rules they setup for the type
button you are using (or want to model after). Look at the rules for
the button-up-hover (or something similar to that). There you will
find how the GWT team puts the borders on the buttons. Copy that to
your button-up class and you should be all set.

HTH,
Chad

On Jul 29, 3:47 am, Muhannad Nasser muhannadna...@gmail.com wrote:
 hi all

 the buttons in the grid panel does not have frame when the mouse is
 not over them, but when we put the mouse over the button the frame
 appears. i need to make the frame visible all the time even if the
 mouse is not over the button like the regular button.

 does anybody have an idea and can help me...

 thanks

 Muhannad
--~--~-~--~~~---~--~~
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: Add external java project to GWT project in Eclipse

[martinhansen]

Hello Brandon,

I used the link source function in eclipse. I added all the projects
this way. What exactly is your problem? Do you get any error message?
What did you do to add the projects?


On 29 Jul., 06:34, branflake2267 branflake2...@gmail.com wrote:
 Hi Martin,

 On including more than one project source into your gwt project, can
 you tell me what you did to get two projects to work together in GWT.
 I have been trying over and over to combine two projects up for some
 time, and have not been able to do it.

 Thanks,
 Brandon

 On Jul 21, 3:16 am, martinhansen martin.hanse...@googlemail.com
 wrote:

  Hello Jason,

  that did the trick! Thank you very much, it works fine now. Great!

  On 20 Jul., 23:43, Jason Parekh jasonpar...@gmail.com wrote:

   Hi Martin,
   For the Linked folder location, ensure you have the trailing src
   included.

   jason

   On Mon, Jul 20, 2009 at 4:35 PM, martinhansen 

   martin.hanse...@googlemail.com wrote:

Now I tried the link source function without Google App Engine. At
first, it seems to work, and the project is added to my main project.
The only problem is: The package declarations produce errors. Eclipse
shows an error message:

The declared package com.company.data does not match the expected
package src.com.company.data

What to do?

On 20 Jul., 22:29, martinhansen martin.hanse...@googlemail.com
wrote:
 Hello Donald,

 I already tried the Google App Engine approach, but it didn't work for
 me. And GAE adds a lot of stuff I don't need to my project. I really
 don't want to mess around with it, since I managed to kill my GWT
 app's configuration several times and I had to create a new project.

 Meanwhile, I tried the output folder approach. I tried to change the
 default output folder of DataProject, but I
 didn't manage successfully. Eclipse says: Path '/GwtApp/src' must
 denote location inside project 'DataProject'. Am I heading the wrong
 way there?

 On 20 Jul., 22:21, Donald W. Long donald.w.l...@gmail.com wrote:

  I looked at the linked source method and you have to have the linked
  source fully qualified.  Thats nice if you always have your source 
  in
  the same place.  You could try using the linked variables but then
  thats also work.  Do not see this as a real option forprojectsthat
  will be worked on by many developers at the same time.

  If I am wrong please let me know.

  Thanks

  Donald W. Long (donald.w.l...@thelongsfamily.com)

  On Jul 20, 1:34 pm, Jason Parekh jasonpar...@gmail.com wrote:

   Hi Martin,
   You may try using the link source option, as suggested by the 
   thread
athttp://groups.google.com/group/google-appengine-java/browse_thread/th..
..
    If that doesn't work, you could set the output directory of your
   dependencies to be the GWT output folder.

   jason

   On Mon, Jul 20, 2009 at 12:14 PM, martinhansen 

   martin.hanse...@googlemail.com wrote:

Hello Sean,

thank you very much. I've thought of that solution too, but it 
is
not
appropriate for my GWT project. I have to add 4 externalprojects
to
my GWT project, and all of these 4projectsare subject to change
every day. It would be too much work to export them to a jar 
file
every day. Is there some way to automatically add the external
project
sources to the GWT output folder?

On 20 Jul., 18:03, Sean slough...@gmail.com wrote:
 You can export the non-GWT java files into a jar and drop 
 those
in the
 WEB-INF/lib folder. That's what I do.

 On Jul 20, 11:44 am, martinhansen 
martin.hanse...@googlemail.com
 wrote:

  Hello,

  my GWT server-side code needs an external java project. I 
  have
added
  the project under Configure build path /Projects. It works
fine in
  hosted mode. But when I deploy my application on a server, I
get lots
  of ClassNotFoundExceptions. Obviously, GWT cannot find the
external
  java code. When I look at the war\WEB-INF\classes folder, I 
  see
that
  the external java classes have not been included.

  How can I get GWT to include the external classes?- Hide 
  quoted
text -

   - Show quoted text -
--~--~-~--~~~---~--~~
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: [ERROR] Line 3: The import java.math cannot be resolved

[Jason Essington]

BigDecimal is not emulated in GWT and thus cannot be compiled to  
javascript.

Have a look at what is available to you:
http://code.google.com/webtoolkit/doc/1.6/RefJreEmulation.html

-jason
On Jul 28, 2009, at 11:55 PM, akshi wrote:


 Hi Folks,

 I am using GWT as a beginner and at the time of using
 java.math.BigDecimal it gives me exception.

 Compiling module com.techjini.app.SwordFish
   Refreshing module from source
  Validating newly compiled units
 Removing units with errors
[ERROR] Errors in 'file:/D:/dev/GWT/gwt_workspace/
 SwordFish/src/com/techjini/app/client/InvoiceService.java'
   [ERROR] Line 3: The import java.math cannot be resolved
   [ERROR] Line 13: BigDecimal cannot be resolved to a
 type
 Removing units with errors
[ERROR] Errors in 'file:/D:/dev/GWT/gwt_workspace/
 SwordFish/src/com/techjini/app/client/invoice/CreateInvoice.java'
   [ERROR] Line 341: No source code is available for type
 java.math.BigDecimal; did you forget to inherit a required module?
[ERROR] Errors in 'file:/D:/dev/GWT/gwt_workspace/
 SwordFish/src/com/techjini/app/client/InvoiceServiceAsync.java'
   [ERROR] Line 10: No source code is available for type
 java.math.BigDecimal; did you forget to inherit a required module?
 Removing invalidated units
[WARN] Compilation unit 'file:/D:/dev/GWT/gwt_workspace/
 SwordFish/src/com/techjini/app/client/invoice/InvoiceScreen.java' is
 removed due to invalid reference(s):
   [WARN] file:/D:/dev/GWT/gwt_workspace/SwordFish/src/com/
 techjini/app/client/invoice/CreateInvoice.java
[WARN] Compilation unit 'file:/D:/dev/GWT/gwt_workspace/
 SwordFish/src/com/techjini/app/client/SwordFish.java' is removed due
 to invalid reference(s):
   [WARN] file:/D:/dev/GWT/gwt_workspace/SwordFish/src/com/
 techjini/app/client/invoice/InvoiceScreen.java
   Computing all possible rebind results for
 'com.techjini.app.client.SwordFish'
  Rebinding com.techjini.app.client.SwordFish
 Checking rule generate-with
 class='com.google.gwt.user.rebind.ui.ImageBundleGenerator'/
[ERROR] Unable to find type
 'com.techjini.app.client.SwordFish'
   [ERROR] Hint: Previous compiler errors may have made
 this type unavailable
   [ERROR] Hint: Check the inheritance chain from your
 module; it may not be inheriting a required module or a module may not
 be adding its source path entries properly


 Following is the code :

 Model class :
 import java.math.BigDecimal;
 import java.util.Date;

 import javax.jdo.annotations.IdGeneratorStrategy;
 import javax.jdo.annotations.IdentityType;
 import javax.jdo.annotations.PersistenceCapable;
 import javax.jdo.annotations.Persistent;
 import javax.jdo.annotations.PrimaryKey;

 import com.google.appengine.api.datastore.Blob;
 import com.techjini.app.server.util.DateUtil;

 @PersistenceCapable(identityType=IdentityType.APPLICATION)
 public class Invoice {

   public static final Short ACTIVE_STATUS = 1;
   public static final Short INACTIVE_STATUS = 2;


   @PrimaryKey
   @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
   private Long invoiceId;
   @Persistent
   private ClientCustomer clientCustomer;
   @Persistent
   private InvoiceTemplate invoiceTemplate;
   @Persistent
   private InvoiceSetting invoiceSetting;
   @Persistent
   private Date dueDate;
   @Persistent
   private Date invoiceDate;
   @Persistent
   private BigDecimal amount;
   @Persistent
   private Short InvoiceStatus;
   @Persistent
   private Blob invoiceContent;
   @Persistent
   private Date createdAt;
   @Persistent
   private Long createdBy;
   @Persistent
   private Date lastUpdatedAt;
   @Persistent
   private Long lastUpdatedBy;
   @Persistent
   private boolean isDeleted;
   @Persistent
   private Integer version;

   public Invoice(Long clientCustomerId, Date dueDate,
   Date invoiceDate, BigDecimal amount, Short 
 invoiceStatus) {
   this.amount = amount;
   this.createdAt = DateUtil.getCurrentDate();
   this.dueDate = dueDate;
   this.invoiceDate = invoiceDate;
   this.lastUpdatedAt = DateUtil.getCurrentDate();
   this.InvoiceStatus = invoiceStatus;
   }
 // and getter setter of the fields
 }


 Interface :

 import java.math.BigDecimal;
 import java.util.Date;

 import com.google.gwt.user.client.rpc.RemoteService;
 import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;


 @RemoteServiceRelativePath(createInvoice)
 public interface InvoiceService extends RemoteService {
   String createInvoice(String invoiceNo, Long clientCustomerId, Date
 dueDate, Date invoiceDate, BigDecimal amount ) throws Throwable;
 }


 import 

Re: Can I invoke RPC Methods from Java

[Steve]

I tried using firebug, unfortunately the POST request data has some
unreadable characters, which doesn't really help me all that much.

Anyone have any hints for deciphering the POST request?

Thanks,

Steve

On Jul 29, 11:50 am, Trevis trevistho...@gmail.com wrote:
 I'm still pretty new to GWT but i'd probably start by watching the
 messages in firebug (the firefox plugin) to see exactly what's going
 back and forth.

 Trevis

 On Jul 29, 10:23 am, Steve stever...@gmail.com wrote:

  Thanks for the quick reply.

  Unfortunately I'm in a situation where I can't/shouldn't mess with the
  GWT application that I'm trying to call remotely.  It is a 3rd party
  app that is distributed in WAR form.  I'd rather not have to crack it
  open and add a SOAP interface into it.

  Do you know of any documentation that details how I can format a POST
  request to a GWT RPC service?

  Thanks

  On Jul 29, 10:11 am, Trevis trevistho...@gmail.com wrote:

   I'm also pretty new to GWT and your scenario never occurred to me.
   Generally i think that it's probably not the greatest idea to try and
   call the GWT RPC's from a different front end and i've not come across
   anything that would give you a wsdl (or something like a wsdl) that
   you could use from non GWT java app.  But, i cant think of any reason
   why you couldnt make it work.

   The RPC calls are just HTTP Post requests which receive a JSON
   response.  Introducing JSON into a non web app seems like a red flag
   to me but if you really wanted to do it, you should be able to convert
   those into java objects.

   I *think* that a better solution might be to just rewrite a SOAP based
   webservice layer that uses the same code that the GWT services calls.
   That's not a great solution either since it introduces duplication but
   perhaps a better way to go would be to port the logic to a SOAP based
   webservice layer and then call the SOAP service from the GTW RPC
   server so that the logic only exists in one place.

   Just a thought, ymmv.

   On Jul 29, 9:38 am, Steve stever...@gmail.com wrote:

Hello All,

I'm new to GWT so please forgive me if there is some obvious answer to
my problem.  I googled around for this information and came up dry.

Here is my problem.  There is an existing GWT Application that I want
to leverage in a new application that I am building.  This GWT app
uses RPC.  I was hoping to find a way to call some of its RPCs from a
seperate non-GWT Java application.

I am more familiar with using SOAP services, which provides a way to
generate a client from a service description (WSDL).  Is there
anything similar for GWT's RPC?  If there isn't, does anyone know if
it is possible to create the POSTs to the GWT servlet by hand? Are
there any utilities for this?

Thanks,

Steve
--~--~-~--~~~---~--~~
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 I invoke RPC Methods from Java

[Jason Essington]

RPC data is not synchronous, meaning an object moving from the client  
to the server (javascript to java) looks different than one moving  
from the server to the client (java to javascript).

This complicates attempting to perform a java to java type of  
scenario. That said, it is not impossible, but it is fragile.

The RPC format is mostly undocumented primarily due to the fact that  
it is still being tweaked between releases. This means that anything  
you write now could very well not work in a newer version of GWT. This  
isn't an issue with GWT itself as the serializers are generated at  
compile time.

if you want to see how it all works, you could add the -gen flag to  
the GWTCompiler and it'll store the generated serialization code, and  
you could perhaps use that to aid your development.

-jason

On Jul 29, 2009, at 9:23 AM, Steve wrote:


 Thanks for the quick reply.

 Unfortunately I'm in a situation where I can't/shouldn't mess with the
 GWT application that I'm trying to call remotely.  It is a 3rd party
 app that is distributed in WAR form.  I'd rather not have to crack it
 open and add a SOAP interface into it.

 Do you know of any documentation that details how I can format a POST
 request to a GWT RPC service?

 Thanks

 On Jul 29, 10:11 am, Trevis trevistho...@gmail.com wrote:
 I'm also pretty new to GWT and your scenario never occurred to me.
 Generally i think that it's probably not the greatest idea to try and
 call the GWT RPC's from a different front end and i've not come  
 across
 anything that would give you a wsdl (or something like a wsdl) that
 you could use from non GWT java app.  But, i cant think of any reason
 why you couldnt make it work.

 The RPC calls are just HTTP Post requests which receive a JSON
 response.  Introducing JSON into a non web app seems like a red flag
 to me but if you really wanted to do it, you should be able to  
 convert
 those into java objects.

 I *think* that a better solution might be to just rewrite a SOAP  
 based
 webservice layer that uses the same code that the GWT services calls.
 That's not a great solution either since it introduces duplication  
 but
 perhaps a better way to go would be to port the logic to a SOAP based
 webservice layer and then call the SOAP service from the GTW RPC
 server so that the logic only exists in one place.

 Just a thought, ymmv.

 On Jul 29, 9:38 am, Steve stever...@gmail.com wrote:

 Hello All,

 I'm new to GWT so please forgive me if there is some obvious  
 answer to
 my problem.  I googled around for this information and came up dry.

 Here is my problem.  There is an existing GWT Application that I  
 want
 to leverage in a new application that I am building.  This GWT app
 uses RPC.  I was hoping to find a way to call some of its RPCs  
 from a
 seperate non-GWT Java application.

 I am more familiar with using SOAP services, which provides a way to
 generate a client from a service description (WSDL).  Is there
 anything similar for GWT's RPC?  If there isn't, does anyone know if
 it is possible to create the POSTs to the GWT servlet by hand? Are
 there any utilities for this?

 Thanks,

 Steve
 


--~--~-~--~~~---~--~~
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: Multiple pages question

[Maarten Decat]

Okay, I think I'm starting to see the different options.

I can ask the same question more specific now. Formerly, I was used to
working like this: I wrote PHP and added all the elements I needed
(forms for example) in HTML. Someone else could take control of laying
out these elements in any way he liked. He could alter the HTML of the
page apart from my PHP and as long as the elements kept their names,
everything kept working. This way, I could fix my attention on the
program and others could fix their attention at the lay-out.

In GWT it's possible to create a lay-out by positioning different
widgets in Java code. It's also possible to give these widgets style
names which let CSS take control of their layout. But is it also
possible of laying out the elements without entering the Java code? I
can see how to seperate lay-out with program code but the lay-out
would still be specified in Java, no?

Maarten

On 29 jul, 20:21, Ian Bambury ianbamb...@gmail.com wrote:
 You have html in your index file. You have code in your java files. How you
 split everything up is your decision.

 In your html host page, you could have 2 divs, defining the layout for page1
 and page 2. In your GWT code, yo make one or other visible as you need them.

 It might get a little unmanageable for 100 pages, so you could have html
 files on the server and go and pick them up as required.

 You can do both at the same time: have a basic menuing framework and pick up
 html from server-side pages and slot them into part of your app's display
 area. That's what my examples site does, mostly to keep all the text out of
 the initial download. It also means you can easily arrange to get spidered
 by search engines.

 Ian

 http://examples.roughian.com

 2009/7/29 maarten.de...@gmail.com maarten.de...@gmail.com



  Hi,

  I've been trying out GWT for a couple of weeks now and stumbled upon a
  beginner's question relating multiple pages.

  For example, let's suppose an application with users where you have an
  application page, a login page and a register page. Using GWT for the
  application page speaks for itself, but what about the other pages?

  I've read the other topics about this problem in the group. It seems
  the proper GWT solution is to clear window and load another GUI there.
  This would actually wrap all the pages within the application. I can
  see how this solution would work, but then you lack a lot of usefull
  HTML pages that lay out the login and register forms. This way, making
  the lay-out of the page cannot be seperated from coding the
  application, at least not in HTML vs GWT/Java.

  Is there another way of working for this? One that does permit to
  seperate page lay-out and coding?

  Greets,

  Maarten Decat
--~--~-~--~~~---~--~~
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: API Document

[Isaac Truett]

Javadocs are included when you download the toolkit.

http://code.google.com/p/google-web-toolkit/downloads/list


On Tue, Jul 28, 2009 at 9:27 AM, Karthiseenukar...@gmail.com wrote:

 Hi where can I download API document for GWT

 


--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

ensureDebugId(String) doesn't set IDs

[The Question]

I, like many others am trying to use Selenium to test my GWT
application.  Unlike the others, though, I am having a much harder
time using the ensureDebugId(String) method.

What is funny is that I am succeeding in setting the ID in some places
but not in others.  My gwt.xml file includes the requisite
statement:

 inherits name=com.google.gwt.user.Debug/,

However, the following code doesn't set the ID of the TabPanel or the
widget:

TabPanel tabPanel = new TabPanel();
tabPanel.ensureDebugId(main-menu);
widget.ensureDebugId(widget.getName() + -button);
tabPanel.add(widget, widget.getName());

There is a lot more going on in my application than what is listed
here, but I do not set IDs explicitly anywhere in my code.  After
compiling the application there are no IDs that exist in the generated
source despite these statements in my code.

However, for the following code:

RootPanel MENU_PANEL = RootPanel.get(gwtMainMenu);
menuPanel.ensureDebugId(menu-panel);

The ID 'gwt-debug-menu-panel' appears as expected.

I haven't tried definitively, but I think the same thing happens with
setID().  So this may not be a problem only related to ensureDebugId
(String), but the way I set my IDs in general.  However, I am looking
to use the ensureDebugId method--not the setID() when I create IDs for
Selenium.

Why the 'work-sometimes' behaviour?  Is there an order that I should
be worried about?
Any help would be appreciated...

Stephen

--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

Visualization annotatedtimeline errors

[Joe]

I'm trying to add an annotated time line to a disclosure panel but I
get the following error:

[ERROR] Uncaught exception escaped
com.google.gwt.core.client.JavaScriptException: (Error):
 number: 0
 description:
at
com.google.gwt.visualization.client.visualizations.Visualization.draw
(Native Method)
at
com.google.gwt.visualization.client.visualizations.Visualization.onLoad
(Visualization.java:116)
at com.google.gwt.user.client.ui.Widget.onAttach(Widget.java:264)
at com.google.gwt.user.client.ui.Panel.doAttachChildren(Panel.java:
165)
at com.google.gwt.user.client.ui.Widget.onAttach(Widget.java:259)
at com.google.gwt.user.client.ui.Panel.doAttachChildren(Panel.java:
165)
at com.google.gwt.user.client.ui.Widget.onAttach(Widget.java:259)
at com.google.gwt.user.client.ui.Panel.doAttachChildren(Panel.java:
165)
at com.google.gwt.user.client.ui.Widget.onAttach(Widget.java:259)
at com.google.gwt.user.client.ui.Composite.onAttach(Composite.java:
102)
at com.google.gwt.user.client.ui.Widget.setParent(Widget.java:393)
at com.google.gwt.user.client.ui.Panel.adopt(Panel.java:119)
at com.google.gwt.user.client.ui.ComplexPanel.add(ComplexPanel.java:
86)
at com.google.gwt.user.client.ui.AbsolutePanel.add(AbsolutePanel.java:
80)
at edu.sccoos.gwt.piers.client.PiersGWT$1.run(PiersGWT.java:76)
at com.google.gwt.ajaxloader.client.ExceptionHelper.runProtected
(ExceptionHelper.java:36)

Here is my code:
package edu.sccoos.gwt.piers.client;

import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyUpEvent;
import com.google.gwt.event.dom.client.KeyUpHandler;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.DialogBox;
import com.google.gwt.user.client.ui.DisclosurePanel;
import com.google.gwt.user.client.ui.Grid;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.ListBox;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.visualization.client.AbstractDataTable;
import com.google.gwt.visualization.client.DataTable;
import
com.google.gwt.visualization.client.AbstractDataTable.ColumnType;
import com.google.gwt.visualization.client.VisualizationUtils;
import
com.google.gwt.visualization.client.visualizations.AnnotatedTimeLine;
import
com.google.gwt.visualization.client.visualizations.AnnotatedTimeLine.AnnotatedLegendPosition;
import
com.google.gwt.visualization.client.visualizations.AnnotatedTimeLine.Options;


/**
 * Entry point classes define codeonModuleLoad()/code.
 */
public class PiersGWT implements EntryPoint {

/**
 * The message displayed to the user when the server cannot be
reached or
 * returns an error.
 */
private static final String SERVER_ERROR = An error occurred while 
+ attempting to contact the server. Please check your 
network 
+ connection and try again.;


/**
 * This is the entry point method.
 */
public void onModuleLoad() {
Runnable onLoadCallback = new Runnable(){
public void run(){


final DisclosurePanel viewPlots = new 
DisclosurePanel(Click to
view plots);

final VerticalPanel plotPanels = new 
VerticalPanel();

final ListBox metsList = new ListBox();
metsList.addItem(Water Temperature,1);
metsList.addItem(Chlorophyll,2);
metsList.addItem(Water Pressure,3);

plotPanels.add(metsList);

final AnnotatedTimeLine myplot = new 
AnnotatedTimeLine(createTable
(), createOptions(), 400,300);
plotPanels.add(myplot);

viewPlots.setAnimationEnabled(true);
viewPlots.setContent(plotPanels);

// Add the nameField and sendButton to the 
RootPanel
// Use RootPanel.get() to get the entire body 
element
RootPanel.get(waterform).add(viewPlots);

}
};
// Load the visualization api, passing the onLoadCallback to be
called
// when loading is 

Event and Interrupt Questions

[spike2...@googlemail.com]

Hey i was coding a GWT App and a question came up:

Does an event like MouseOver interrupt already running code or does it
even fire? Or is it put on the top of a stack like Deferred Command?

Is there a website where all this is explained?

Thx in advanced
--~--~-~--~~~---~--~~
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: Multiple pages question

[Ian Bambury]

Yes, like I said. Do the layout in the HTML and the functionality in the
java code.
Why don't you give a simple example of what you are wanting to do. There are
many ways to do this and many levels of control you can give to the people
who do the layout. It's not really possible to give a one-size-fits-all
solution.

Ian

http://examples.roughian.com


2009/7/29 Maarten Decat maarten.de...@gmail.com


 Okay, I think I'm starting to see the different options.

 I can ask the same question more specific now. Formerly, I was used to
 working like this: I wrote PHP and added all the elements I needed
 (forms for example) in HTML. Someone else could take control of laying
 out these elements in any way he liked. He could alter the HTML of the
 page apart from my PHP and as long as the elements kept their names,
 everything kept working. This way, I could fix my attention on the
 program and others could fix their attention at the lay-out.

 In GWT it's possible to create a lay-out by positioning different
 widgets in Java code. It's also possible to give these widgets style
 names which let CSS take control of their layout. But is it also
 possible of laying out the elements without entering the Java code? I
 can see how to seperate lay-out with program code but the lay-out
 would still be specified in Java, no?

 Maarten

 On 29 jul, 20:21, Ian Bambury ianbamb...@gmail.com wrote:
  You have html in your index file. You have code in your java files. How
 you
  split everything up is your decision.
 
  In your html host page, you could have 2 divs, defining the layout for
 page1
  and page 2. In your GWT code, yo make one or other visible as you need
 them.
 
  It might get a little unmanageable for 100 pages, so you could have html
  files on the server and go and pick them up as required.
 
  You can do both at the same time: have a basic menuing framework and pick
 up
  html from server-side pages and slot them into part of your app's display
  area. That's what my examples site does, mostly to keep all the text out
 of
  the initial download. It also means you can easily arrange to get
 spidered
  by search engines.
 
  Ian
 
  http://examples.roughian.com
 
  2009/7/29 maarten.de...@gmail.com maarten.de...@gmail.com
 
 
 
   Hi,
 
   I've been trying out GWT for a couple of weeks now and stumbled upon a
   beginner's question relating multiple pages.
 
   For example, let's suppose an application with users where you have an
   application page, a login page and a register page. Using GWT for the
   application page speaks for itself, but what about the other pages?
 
   I've read the other topics about this problem in the group. It seems
   the proper GWT solution is to clear window and load another GUI there.
   This would actually wrap all the pages within the application. I can
   see how this solution would work, but then you lack a lot of usefull
   HTML pages that lay out the login and register forms. This way, making
   the lay-out of the page cannot be seperated from coding the
   application, at least not in HTML vs GWT/Java.
 
   Is there another way of working for this? One that does permit to
   seperate page lay-out and coding?
 
   Greets,
 
   Maarten Decat
 


--~--~-~--~~~---~--~~
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: Admin Area protected by simple scripted password in GWT

[Nickelnext]

First of all thank you both for helping.

What the article suggests (i read it twice but without a big snippet
code i don't understand everything) is to:

- make a login box (user and pass)
- Call the server with RPC. The server answer back with a boolean
(Valid or NotValid) and a SessionID.
- The Client get the two vars, and when tries to do something in Admin
Mode (like uploading a file or something) sends also that sessionID.
If is still valid on the Server, it goes well, else it sends back an
error to the client.

The Admin area is still attached like Trevis said: with a RootPanel.add
(AdminArea) if the Callback got success.

So, the SessionID would prevent the fact that a malicious user could
reverse-eng the javascript code and use the admin area without any
permission, right?

If what i said is correct (or seems to be) then i'll try to write it
down and i'll let you know!

Nickelnext
--~--~-~--~~~---~--~~
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: onSubmitComplete is not working with GWT Showcase

[Simon]

Hi Trevis, thanks for reply. I need help urgently.

On Jul 30, 1:05 am, Trevis trevistho...@gmail.com wrote:
 Shot in the dark here but the first thing i would check is are you
 setting the method type on your form panel? Sounds like you need to
 set it to POST.  (FromPanel.METHOD_POST constant is defined for
 doing this)

The following is the portion of my code, please check it out any
problem on it.

Eclipse 3.4 + GWT 1.7.+ Chrome (default browser)
=
CwTextArea.java
=

private FormPanel homeForm = new FormPanel();
private HorizontalPanel identifyPanel = new HorizontalPanel();
private TextArea identifyTextArea = new TextArea();
private VerticalPanel leftHomePanel = new VerticalPanel();
private VerticalPanel rightHomePanel = new VerticalPanel();
private Label titleInlineLabel = new Label(Enter text or a webpage
URL);
private Button identifyButton = new Button(Identify Language);
private Label identifyResultLabel = new Label((result displayed
here!));
private HTML h = new HTML();

/**
 * Initialize this example.
 */
@ShowcaseSource
@Override
public Widget onInitialize() {


// Text and Web tab


// Create a web page form
homeForm.setAction(GWT.getModuleBaseURL()+textarea);
homeForm.setMethod(FormPanel.METHOD_POST);

// Create a panel to hold all of the form widgets.
homeForm.setWidget(identifyPanel);

// set the text area size.
identifyTextArea.setCharacterWidth(40);
identifyTextArea.setVisibleLines(10);
identifyTextArea.setName(homeTextArea);

// Assemble Home tab vertical panel of text area.
leftHomePanel.setWidth(400px);
leftHomePanel.add(titleInlineLabel);
leftHomePanel.add(identifyTextArea);
leftHomePanel.add(identifyButton);

// Assemble identify result label into vertical result panel
rightHomePanel.add(identifyResultLabel);

// Assemble Home tab vertical panel.
identifyPanel.setHeight(400px);
identifyPanel.add(leftHomePanel);
identifyPanel.add(rightHomePanel);

/*
 * Listen for mouse events on the Add button of the text area.
 */
identifyButton.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
if (identifyTextArea.getText().length() == 0) {
Window.alert(The text area must not be empty);
identifyTextArea.selectAll();
return;
}
else
homeForm.submit();
}
});

homeForm.addFormHandler(new FormHandler() {
public void onSubmit(FormSubmitEvent event) {
System.out.println(event);
identifyTextArea.setFocus(true);
identifyResultLabel.setText(identifyTextArea.getText());
}

public void onSubmitComplete(FormSubmitCompleteEvent event) {
System.out.println(event);
}

});

return identifyPanel;
}


=
TextAreaServlet.java
=
@SuppressWarnings(serial)
public class TextAreaServlet extends HttpServlet {

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse
resp)
throws ServletException, IOException {
resp.setContentType(text/html);
System.out.println(servlet respond!);
String oriSource = req.getParameter(homeTextArea); //read 
from the
form of text area
System.out.println(oriSource);
}

// to override the doPost()
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse
resp)
throws ServletException, IOException {
super.doGet(req, resp);
}
}


=
web.xml
=
?xml version=1.0 encoding=UTF-8?
!DOCTYPE web-app
PUBLIC -//Sun Microsystems, Inc.//DTD Web Application 2.3//EN
http://java.sun.com/dtd/web-app_2_3.dtd;
web-app
  !-- Default page to serve --
  welcome-file-list
welcome-fileReadMeSystem.html/welcome-file
  /welcome-file-list

servlet
servlet-nametextareaServlet/servlet-name
servlet-classcom.google.gwt.sample.showcase.server.TextAreaServlet/
servlet-class
/servlet
servlet-mapping
servlet-nametextareaServlet/servlet-name

Something other than a Java object was returned from JSNI method when getting colspan

[bhomass]

I have some very simple code

String colspan = tdElement.getAttribute(colspan);

it continually crash with
Something other than a Java object was returned from JSNI method.
also crashes with rowspan, but ok with some other attribute like
id

when I get its parent tr, then getting colspan and rowspan is no
problem. this is on IE6.

is this a known bug?
--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

Using form.submit()??

[jlc488]

Hello guys,

I have a problem which I've created FormPanel using GWT and perform
some java script method before submiting the form.

So, I defined a native method which does the some job before
submitting the form.

document.form.submit() -- not working
$wnd.document.form.submit() -- not working
$wnd.document.getElementByTagName(form).submit() -- not working

Is there any way I can fetch this form.submit() ?

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: Something other than a Java object was returned from JSNI method when getting colspan

[bhomass]

I already try the fix
public final native String getAttribute(Element element, String
name) /*-{
return element.getAttribute(name, 2)|| ;
}-*/;

but the same exception. did I do something wrong in doing the fix?
--~--~-~--~~~---~--~~
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: Newbie question(File Permissions issue in GWT)

[spike2...@googlemail.com]

Is it possible that Barry isn't your account?

On 28 Jul., 17:26, Rumpole6 barry.benow...@gmail.com wrote:
 This may not be the right place for this, but:

 I am using the gwt plugin  in eclipse under Windows XP to write an
 small application and I am facing File Permission Errors trying to
 access files in the server code when I run my app in hosted mode. I
 suspect that there is an option to set somewhere which will allow me
 to access the files. The Files are located in C:\Documents and Settings
 \Barry\Application Data\Subversion.

 Thanks in advance.

 Barry
--~--~-~--~~~---~--~~
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: Using form.submit()??

[jlc488]

I found the way to do it. :-)

I called java method which include FormPanel Objcet to submit from
native method.

like this :
th...@com.test.sample.server.web.client.ui.serverwidget::formSubmit()
(); -- this placed inside of native method

private void formSubmit(){
formPanel.submit();
}

Hope this would help to someone like me!



On Jul 30, 10:39 am, jlc488 jlc...@gmail.com wrote:
 Hello guys,

 I have a problem which I've created FormPanel using GWT and perform
 some java script method before submiting the form.

 So, I defined a native method which does the some job before
 submitting the form.

 document.form.submit() -- not working
 $wnd.document.form.submit() -- not working
 $wnd.document.getElementByTagName(form).submit() -- not working

 Is there any way I can fetch this form.submit() ?

 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
-~--~~~~--~~--~--~---

Bundling Background Images defined in CSS

[Salman Hemani]

Ok, I am not getting a clear cut answer for this so I thought I would
post this.

ImageBundle - Neat concept. Awesome. Works great.

Is there a way to automate the bundling of the background images
defined in CSS? So whereever the CSS refers to a background image, I
would like to put that in an ImageBundle and refer the CSS to a
clipped image to a particular position. I understand I could create an
image and clip them manually but is there an automated process? Or is
GWT 2.0 have this feature?

Thanks in advance!

--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups 
Google Web Toolkit group.
To post to this group, send email to 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: Passing an XML document to a Panel

[spike2...@googlemail.com]

See the Api
http://google-web-toolkit.googlecode.com/svn/javadoc/1.6/com/google/gwt/xml/client/XMLParser.html
The XMLParser throws you an Document object with wich you can play
around with

Greetings

On 29 Jul., 05:25, kavi kavielango...@gmail.com wrote:
 How can i pass a complete well formed XML document to panel or to a
 file in GWT
--~--~-~--~~~---~--~~
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 events, image overlays, and GChart

[spike2...@googlemail.com]

The Image Object has a MouseMoveEvent-Listener, why not capture events
on the Image on the foreground and the call a function on your Image
in the background, giving the information you need?

On 28 Jul., 21:52, bconoly bcon...@gmail.com wrote:
 Ok, this question may be confusing but I'll be as clear as possible.
     - Currently I have a Pie Chart rendered using GChart.
     - I would like to overlay a transparent image over the pie chart
 for a 3d effect.
     - I need that overlay image to pass along hover events and click
 events to the pie chart it's overlaying.

 My questions are:
 1)  Does anyone know of a way to make an image or a div with a
 background image ignore mouse events and let them propogate to the
 next layer?
 2)  If not, does anyone know how I could capture these events through
 the image and fire them off in the correct location of GChart?

 Thanks tremendously 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: Passing a javascript object as parameter to java method

[rohit a]

Hi,

Great Idea. Thanks a lot.

Bye
--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---

Query: Multi-user environment and GWT RPC

[style.x7]

Hi fellow members,

I have been following examples found on the web to build my web
application with RPC mechanism.

My web application has quite a few services. By right, each service
should have its own class files on both client and server side. But
this way will result in a lot of class files, quite troublesome.

So I'm grouping all the services into one union set of class files.
It works for single-user usage, soon I have to test on multi-user
environment and wonder if problem can arise.

Say if users using different services concurrently and yet I have
grouped the services together, will my web application crash (it can't
tell which service for whom) ? Or I'm worrying too much as there will
be individual instance of the class files for each user?

Just want to get this right before I continue developing~ Thanks in
advance :)

Regards,
style.x7

--~--~-~--~~~---~--~~
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] Re: GWTCanvas status?

[Ray Cromwell]

Another crazy possibility is to use Brad Neuberg's SVGWeb (
http://code.google.com/p/svgweb/). He's implemented almost 100% of SVG and
SMIL in Flash plus a JS wrapper, so as to enable HTML5 features in IE6. I
have to say that the demos are very impressive.
IMHO, IE6+VML is a lost cause for all but the most simple of graphical apps.
The performance of the JS as well as VML is so gimped, that even if you get
stuff working and looking the same, it'll likely be disappointing from a UI
latency perspective. It's like writing a video game that has to
simultaneously run on a 4-core 3Ghz x86 with latest GPU, and a Pentium3
system with VGA graphics. You either have to provide two rendering loops,
one with the amount of stuff cut way way back, or make the lesser system
unplayable.




On Wed, Jul 29, 2009 at 7:52 AM, Joel Webber j...@google.com wrote:

 I agree that it's probably best to go ahead and fix the bugs in GWTCanvas
 that are likely to show up in any SVG/VML translation. And while I don't
 think anyone's actually worked out the performance of excanvas.js vs
 GWTCanvas, but I'm more concerned with getting a respectable SVG/VML layer
 implemented than with trying to chase the fool's errand of building the
 Canvas API on top of VML, where there will always be cases that perform
 horribly.
 @Jaime, Dan: What do you guys think? I know the ball's still in my court to
 help get Dan's work reviewed and ready for public consumption, but in the
 meantime taking fixes for GWTCanvas seems sensible.


 On Wed, Jul 29, 2009 at 2:05 AM, John Gunther johncurtisgunt...@yahoo.com
  wrote:


 I added a patch to fix the GWTCanvas bug that caused me the most
 grief:


 http://code.google.com/p/google-web-toolkit-incubator/issues/detail?id=293#c1

 Turned out, this problem was a basic one with IE's VML support: right
 after you apply DOM.removeChild to remove a child that contains VML,
 the fill and stroke colors, as well as the stroke widths that you so
 laboriously constructed during various strokes and fills, are all
 simply dropped by IE, as I confirmed by inspecting the inner HTML
 before and after the removeChild call within Widget.removeFromParent.

 Do you think it is worthwhile to fix the remaining GWTCanvas bugs? My
 thinking is that it is on two levels: 1) because GWTCanvas is
 available now and 2) because any more advanced SVG + VML system will
 still have to fix such (mostly low-level VML-related stuff, is my
 guess) bugs, so these fixes should be useful in the new system, too.

 Couple of questions/observations obliquely related to this patch:

 o If it's just VML, features dropping out, fixing this within just GWT
 vector graphics Widgets makes sense. But what if IE drops non-VML
 stuff in removeChild? Just a thought: might be a good test case to
 check the innerHTML before and after removeChild with some omnibus
 HTML to assure IE doesn't drop any other important stuff off. The
 experience of seeing features respectably documented in the VML API
 (http://www.w3.org/TR/NOTE-VML) just dropping out more or less at
 random inspires paranoia.

 o Has anyone compared GWTCanvas, performance-wise, to excanvas.js?
 Better: line-for-line translation of excanvas.js to Java, gwt-compile,
 does it yield any performance boost? How much? A lot of Javascript
 gurus known excanvas.js so could be an interesting kind of benchmark.


 On Jul 19, 12:41 am, John Gunther johncurtisgunt...@yahoo.com wrote:
  Appreciate your replies, I now have a much better sense of where GWT
  vector graphics is heading.
 
  With my use of GWTCanvas, the fact that there was a per-pixel memory
  cost with the canvas tag (that does not exist with VML) forced me to
  do some extra work to shrink-wrap the canvas around each rendered
  curve. So, I can imagine how having everything sort of work like VML
  (element based rather than pixel based) could be a big consistency
  plus.
 
  I also found Ray's argument that many have tried to emulate canvas
  with VML and failed convincing.
 
  On the other hand:
 
  o The use of Flash would create a new proprietary dependency that does
  not exist with GWTCanvas at present.
 
  o Though my vector graphics needs were limited (I only required a
  canvas subset) I was able to do everything I wanted to using GWTCanvas
  (though working around the IE bugs was a pain).
 
  o Relative to other browsers, with the feature subset I used, IE's
  vector graphics rendering isn't nearly as slow as its HTML rendering.
  So, once I figured out I needed to minimize stroke count, I was happy
  with the IE rendering performance of GWTCanvas.
 
  From the perspective of a black-box user of GWTCanvas, except for the
  IE bugs (which I was able to work around) it met my application's
  needs well. Without it GChart would still be stuck in the visual getto
  of HTML-only rendering. So I hope any improved system will preserve
  GWTCanvas' many good features, such as being packaged as a Widget, and
  having a reasonably low cost per 

[gwt-contrib] Re: GWTCanvas status?

[Joel Webber]

Is VML performance really that bad? I'm quite sure you've done a lot more
testing than I have :) My understanding has always been that it sucked
miserably for implementing a direct-mode API like Canvas, largely because of
the obvious and inherent abstraction-inversion problems. But if you're
implementing a retained-mode SVG-like API, I thought it's performance was
fairly reasonable. But that's largely assumption on my part, and could well
be wrong.
Brad's stuff looks great, and I really like the idea of using Flash's
renderer, which does indeed not suck. My biggest concern, however, is that
any interaction with the SVG DOM could be abysmally slow, as it would appear
that it has to go back and forth between js and flash, which is really,
really slow. Thoughts?

On Wed, Jul 29, 2009 at 11:43 AM, Ray Cromwell cromwell...@gmail.comwrote:


 Another crazy possibility is to use Brad Neuberg's SVGWeb (
 http://code.google.com/p/svgweb/). He's implemented almost 100% of SVG and
 SMIL in Flash plus a JS wrapper, so as to enable HTML5 features in IE6. I
 have to say that the demos are very impressive.
 IMHO, IE6+VML is a lost cause for all but the most simple of graphical
 apps. The performance of the JS as well as VML is so gimped, that even if
 you get stuff working and looking the same, it'll likely be disappointing
 from a UI latency perspective. It's like writing a video game that has to
 simultaneously run on a 4-core 3Ghz x86 with latest GPU, and a Pentium3
 system with VGA graphics. You either have to provide two rendering loops,
 one with the amount of stuff cut way way back, or make the lesser system
 unplayable.




 On Wed, Jul 29, 2009 at 7:52 AM, Joel Webber j...@google.com wrote:

 I agree that it's probably best to go ahead and fix the bugs in GWTCanvas
 that are likely to show up in any SVG/VML translation. And while I don't
 think anyone's actually worked out the performance of excanvas.js vs
 GWTCanvas, but I'm more concerned with getting a respectable SVG/VML layer
 implemented than with trying to chase the fool's errand of building the
 Canvas API on top of VML, where there will always be cases that perform
 horribly.
 @Jaime, Dan: What do you guys think? I know the ball's still in my court
 to help get Dan's work reviewed and ready for public consumption, but in the
 meantime taking fixes for GWTCanvas seems sensible.


 On Wed, Jul 29, 2009 at 2:05 AM, John Gunther 
 johncurtisgunt...@yahoo.com wrote:


 I added a patch to fix the GWTCanvas bug that caused me the most
 grief:


 http://code.google.com/p/google-web-toolkit-incubator/issues/detail?id=293#c1

 Turned out, this problem was a basic one with IE's VML support: right
 after you apply DOM.removeChild to remove a child that contains VML,
 the fill and stroke colors, as well as the stroke widths that you so
 laboriously constructed during various strokes and fills, are all
 simply dropped by IE, as I confirmed by inspecting the inner HTML
 before and after the removeChild call within Widget.removeFromParent.

 Do you think it is worthwhile to fix the remaining GWTCanvas bugs? My
 thinking is that it is on two levels: 1) because GWTCanvas is
 available now and 2) because any more advanced SVG + VML system will
 still have to fix such (mostly low-level VML-related stuff, is my
 guess) bugs, so these fixes should be useful in the new system, too.

 Couple of questions/observations obliquely related to this patch:

 o If it's just VML, features dropping out, fixing this within just GWT
 vector graphics Widgets makes sense. But what if IE drops non-VML
 stuff in removeChild? Just a thought: might be a good test case to
 check the innerHTML before and after removeChild with some omnibus
 HTML to assure IE doesn't drop any other important stuff off. The
 experience of seeing features respectably documented in the VML API
 (http://www.w3.org/TR/NOTE-VML) just dropping out more or less at
 random inspires paranoia.

 o Has anyone compared GWTCanvas, performance-wise, to excanvas.js?
 Better: line-for-line translation of excanvas.js to Java, gwt-compile,
 does it yield any performance boost? How much? A lot of Javascript
 gurus known excanvas.js so could be an interesting kind of benchmark.


 On Jul 19, 12:41 am, John Gunther johncurtisgunt...@yahoo.com wrote:
  Appreciate your replies, I now have a much better sense of where GWT
  vector graphics is heading.
 
  With my use of GWTCanvas, the fact that there was a per-pixel memory
  cost with the canvas tag (that does not exist with VML) forced me to
  do some extra work to shrink-wrap the canvas around each rendered
  curve. So, I can imagine how having everything sort of work like VML
  (element based rather than pixel based) could be a big consistency
  plus.
 
  I also found Ray's argument that many have tried to emulate canvas
  with VML and failed convincing.
 
  On the other hand:
 
  o The use of Flash would create a new proprietary dependency that does
  not exist with GWTCanvas at