Confused by the i18n support for formatting dates, time and currency
I have one simple requirement that doesn't seem to be supported by GWT, even though all the parts seems to be in place. I want to format dates, time and currency according to the users default language in their browser. Users expect to see such entities in formats they understand. However, I have no intention of translating my application. But as I have understood it, GWTs support of DateTimeConstants etc rely on the fact that I have compiled the application for all the locales that my users might be using. And that's just crazy. I can understand the need if you want to translate the UI as well. As an example, Swedish users have no problem with a UI in English, but we get *very* confused by the US date format. Is there a way to just get support for formatting in all the locales that GWT has in com.google.gwt.i18n.client.Constants? --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT Struts2 Integration
Hi Frank GWT FormPanel support regular (HTML) post ! On Thu, Oct 2, 2008 at 8:41 PM, FrankNC [EMAIL PROTECTED] wrote: I am new to GWT. I have a existing Web application which is using Struts 2. I am considering to use GWT on some of the Web pages in this web application. I took a look at the Struts GWT Plugin. It looks good. But it only covers how to use asynchronous call to the Struts action on the server side and how to process the data returned from the action in GWT. The Web page is still controlled by the same GWT module. However, in some cases I just want to use the GWT as a Web UI, but do not want the Ajax (asynchronous call) part. For example, I want to use GWT to build a form and do client side verification, after the user click the submit button, instead of sending an asynchronous call to the server, I want it acting as a regular form post, which posts the data to the Struts 2 action on the server side and let the server redirect the Web page based on the result of the action. It can be a plain Jsp file or another Jsp file which has GWT in it. Can someone help me on this? Thanks in advance, Frank -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT Timers - say no to it with IE
Right, sorry that I haven't posted code before.
And the broblem is actually not in timers, because I temporarily
removed them,
there's smth else.
Here is the code:
c
// file ChartItem.java
public class ChartItem extends AbsolutePanel implements
ChartItemChanger {
private PopupMenu pp = PopupMenu.getInstance();
private ChangeListener mouseOverListener, mouseOutListener,
mouseOnClickListener,mouseOnMouseDownListener,
mouseOnMouseUpListener;
public ChartItem () {
sinkEvents(Event.MOUSEEVENTS);
setMouseListeners();
}
private void setMouseListeners() {
mouseOnClickListener = new ChangeListener() {/* This
is the place where IE does not respond*/
public void onChange(final Widget wdgt) {
/* Sending link to an interface */
pp.setChartItemInterface(ChartItem.this);
/* Calling standard methods of PopupPanel
class*/
pp.setPopupPosition(getAbsoluteLeft(),
getAbsoluteTop() );
pp.show();
}
};
mouseOnMouseDownListener = new ChangeListener() {...}
mouseOnMouseUpListener = new ChangeListener() {...};
mouseOverListener = new ChangeListener() {...};
mouseOutListener = new ChangeListener() {...};
}
public void onBrowserEvent(Event event) {
super.onBrowserEvent(event);
int type = DOM.eventGetType(event);
switch (type) {
case Event.ONCLICK:
mouseOnClickListener.onChange(this);
break;
...
}
}
}
//
// file PopupMenu.java
/* A singleton class */
final public class PopupMenu extends PopupPanel {
private static PopupMenu INSTANCE;
private ChartItemChanger changer;
public static PopupMenu getInstance() {
if (INSTANCE == null) {
INSTANCE = new PopupMenu();
}
return INSTANCE;
}
private PopupMenu() {
super(true);
...
}
void setChartItemInterface(ChartItemChanger changer) {
this.changer = changer;
}
@Override
public void show()
{ if (Flags.ALLOW_POPUP_MENU_SHOWING)
super.show();
}
}
// file Flags.java
public class Flags {
boolean ALLOW_POPUP_MENU_SHOWING=true;
...
}
/c
ChartItem also contains an image and when user clicks on it PopupMenu
should be shown.
It is ok in FF, but not in IE.
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Re: redirect problem
For GWT RPC and Spring integration, you may first look at the GWT Server Library http://gwt-widget.sourceforge.net/ . The GWT-SL provides a GWTHandler to handle the GWT RPC request and then invoke the corresponding service POJO. The configuration is rather standard and straight forward. To intercept the call between the GWT-SL GWTHandler and the POJO service, you can look at the Spring AOP, eg, BeanNameAutoProxyCreator ... sth like that. On 10月3日, 上午8時32分, deanhiller [EMAIL PROTECTED] wrote: This combined with the post just after sounds like the best solution so far(though educating developers on using the adapter is a pain, it will have to do). In that case though, if I am using tomcat with straight GWT, can I still do this? I don't know much about spring at all. Can I get more details on how to specify the servlet in this case as don't you need to specify the Spring servlet or specify the layer in between GWT Servlet and client somehow. What does the code look like and what does the web.xml look like here? On Oct 2, 1:25 am, falafala [EMAIL PROTECTED] wrote: The gwt client cannot interpret the redirect or invalid response (hence invocation exception). I do it this way... I use GWT server library so I can implement the service as POJO in Spring container and published as gwt service. I cannot use servlet filter bcoz it cannot handle the marshaling of the response. It should be behind the GWT rpc servlet. So I intercept the call to POJO service using Spring aop and check the session there, and throw session expired exception. The SessionExpiredException can also include the URL to be redirected. This can be marshaled and sent back to the gwt client. On the client side, you can catch the SessionExpiredException in the AsyncCallback handler and call the Javascript to do the redirect. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT Timers - say no to it with IE
On 3 oct, 09:47, Ivan [EMAIL PROTECTED] wrote:
Right, sorry that I haven't posted code before.
And the broblem is actually not in timers, because I temporarily
removed them,
there's smth else.
[...]
mouseOnClickListener = new ChangeListener() { /* This
is the place where IE does not respond*/
public void onChange(final Widget wdgt) {
/* Sending link to an interface */
pp.setChartItemInterface(ChartItem.this);
/* Calling standard methods of PopupPanel
class*/
pp.setPopupPosition(getAbsoluteLeft(),
getAbsoluteTop() );
pp.show();
}
};
[...]
ChartItem also contains an image and when user clicks on it PopupMenu
should be shown.
It is ok in FF, but not in IE.
What if you set a ClickListener on the Image?
It might be related to
http://groups.google.fr/group/Google-Web-Toolkit/t/4783c9b0cc35e081/
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GWT SITE? (example)
Good day! Do anybody know sites based on GWT? What is big project write with GWT? Please, give me url. 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT Spring Spring Security (ex acegi).
Hi Olivier, What's the benefit compared to GWT-SL Spring integration ? Regards Bruno On 3 oct, 09:38, olivier nouguier [EMAIL PROTECTED] wrote: Hi all, Here are our GWT Sprint Spring security component. http://code.google.com/p/net-orcades-spring/ There is a sample war as featured download for the very impatient. It's allow to: * dispatch RPC-GWT request to Spring managed bean. * trigger the authentication from GWT-RPC request. * allow UI component to activate / deactivate regarding the granted authorities (experimental). Thanks for commenting !! -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT SITE? (example)
have a look at www.seges.sk , ev. www.seges.eu or www.seges.com On Oct 3, 10:42 am, rov.ciso [EMAIL PROTECTED] wrote: Good day! Do anybody know sites based on GWT? What is big project write with GWT? Please, give me url. 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT Spring Spring Security (ex acegi).
Hi, For the my GWT Dispatcher you don't need extra xml configuration to map the GWTHandler to the Managed bean: * the Spring configuration (application context) is unaware on the GWT-RPC underlying. * very simpler to maintain. This DispatchServlet resolve the Managed Bean that implements the RemoteService invoked without any configuration in your applicationContext. On Fri, Oct 3, 2008 at 10:55 AM, noon [EMAIL PROTECTED] wrote: Hi Olivier, What's the benefit compared to GWT-SL Spring integration ? Regards Bruno On 3 oct, 09:38, olivier nouguier [EMAIL PROTECTED] wrote: Hi all, Here are our GWT Sprint Spring security component. http://code.google.com/p/net-orcades-spring/ There is a sample war as featured download for the very impatient. It's allow to: * dispatch RPC-GWT request to Spring managed bean. * trigger the authentication from GWT-RPC request. * allow UI component to activate / deactivate regarding the granted authorities (experimental). Thanks for commenting !! -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Troubles linking GWT and php server using JSon
ok I tried without the port : String url = http://localhost/Portail/www/com.op.Portail/ authenticate.php?name=\'+name+\'pwd=\'+pass+\'; and it works ! So I will try to change my configuration as you suggested Andrej What I still don't understand : ok in hosted mode my script is not interpreted because it is a tomcat. But since I didn't precise the port in the url, why is this still not interpreted when compiled? Thanks all RamI --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Troubles linking GWT and php server using JSon
I tried your solution Andrej If I well understood, I have to replace stringAttribute key=org.eclipse.jdt.launching.PROGRAM_ARGUMENTS value=-out www com.op.Portail/Portail.html/ by stringAttribute key=org.eclipse.jdt.launching.PROGRAM_ARGUMENTS value=-out www Portail/www/com.op.Portail/Portail.html -noserver - port 80/ and it also works ^^ and this solution also allows me to keep the relative path for my url Thanks again RamI --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Removing padding from tree items...
I solved it with this:
div {
margin-top: 0px !important;
margin-bottom: 0px !important;
padding-top: 0px !important;
padding-bottom: 0px !important;
}
span {
margin-top: 0px !important;
margin-bottom: 0px !important;
padding-top: 0px !important;
padding-bottom: 0px !important;
}
But that's not really optimal... It's like putting down cats with
nuclear bombs...
On 3 Okt., 11:30, Ibmurai [EMAIL PROTECTED] wrote:
Even though I use the stylesheet below, all tree items are contained
in a div with 3px padding. This didn't happen prior to my upgrade to
1.5.2 (from 1.4.6)
I need that padding to be 0px...
Help?
.gwt-Tree {
margin: 0px;
padding: 0px;}
div {
margin-top: 0px;
margin-bottom: 0px;
padding-top: 0px;
padding-bottom: 0px;}
.gwt-Tree .gwt-TreeItem {
padding: 0px;
margin-top: 0px;
margin-bottom: 0px;
}
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Hosted mode ServletContextProxy not available in javax.servlet.Filter
Hi all, I've encountered a problem with the resolution of the Serialization file in hosted mode, because the shell servlet uses a ServletContextProxy which is not available in the a javax.servlet.Filter. My work around in hosted mode is to ask this resources (IUZIUZUI.gwt.rpc) to the shell servlet using an HTTP request (it's not very efficient, but in hosted mode in not a big deal). Is there a cleaner solution ? -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT SITE? (example)
On Fri, Oct 3, 2008 at 10:42 AM, rov.ciso [EMAIL PROTECTED] wrote: Good day! Do anybody know sites based on GWT? What is big project write with GWT? Please, give me url. Thanks. Try gpokr.com it is a nice example of a none business application written in GWT, showing you that a lot more can be done with it then just a fancy way to present a form. Regards, Rob --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Removing padding from tree items...
get firebug to check the CSS of the tree...find applied styles , then
change the CSS
hope, it helps
On Oct 3, 11:37 am, Ibmurai [EMAIL PROTECTED] wrote:
I solved it with this:
div {
margin-top: 0px !important;
margin-bottom: 0px !important;
padding-top: 0px !important;
padding-bottom: 0px !important;}
span {
margin-top: 0px !important;
margin-bottom: 0px !important;
padding-top: 0px !important;
padding-bottom: 0px !important;
}
But that's not really optimal... It's like putting down cats with
nuclear bombs...
On 3 Okt., 11:30, Ibmurai [EMAIL PROTECTED] wrote:
Even though I use the stylesheet below, all tree items are contained
in a div with 3px padding. This didn't happen prior to my upgrade to
1.5.2 (from 1.4.6)
I need that padding to be 0px...
Help?
.gwt-Tree {
margin: 0px;
padding: 0px;}
div {
margin-top: 0px;
margin-bottom: 0px;
padding-top: 0px;
padding-bottom: 0px;}
.gwt-Tree .gwt-TreeItem {
padding: 0px;
margin-top: 0px;
margin-bottom: 0px;
}
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GWT Spring Spring Security (ex acegi).
Hi all, Here are our GWT Sprint Spring security component. http://code.google.com/p/net-orcades-spring/ There is a sample war as featured download for the very impatient. It's allow to: * dispatch RPC-GWT request to Spring managed bean. * trigger the authentication from GWT-RPC request. * allow UI component to activate / deactivate regarding the granted authorities (experimental). Thanks for commenting !! -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Removing padding from tree items...
Even though I use the stylesheet below, all tree items are contained
in a div with 3px padding. This didn't happen prior to my upgrade to
1.5.2 (from 1.4.6)
I need that padding to be 0px...
Help?
.gwt-Tree {
margin: 0px;
padding: 0px;
}
div {
margin-top: 0px;
margin-bottom: 0px;
padding-top: 0px;
padding-bottom: 0px;
}
.gwt-Tree .gwt-TreeItem {
padding: 0px;
margin-top: 0px;
margin-bottom: 0px;
}
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Radio Button Bug?
Hi Guys, Is this a bug in the GWT? Or maybe I'm implementing it the wrong way. Can anyone try this, having 2 Radio Buttons on the same group, both have added Listeners (CheckboxListenerAdapter). Sometimes it is throwing the slow script message. Is anyone experiencing this? 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT in netbeans 6.0.1
Thanks YoeZ it worked.Actually i didn't download gwt-windows earlier, I only installed the gwt plugin in netbeans.Now it worked after i downloaded the package,anyhow my project is started.Thanks again. Regards, Prabesh Shrestha On Oct 2, 7:20 pm, YoeZ [EMAIL PROTECTED] wrote: installation folder is where you extracted the GWT (ex. C:\GWT\gwt- windows-1.5.2) On Oct 2, 1:10 pm, prabesh shrestha [EMAIL PROTECTED] wrote: I have installed the GWT plugin in my netbeans IDE .But when i start a new project in comes to a hold when i select the installation folder for gwt.It says this is not a valid installation folder for gwt. I am using netbeans in windows XP.What is the valid installation folder? --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT SITE? (example)
check this out: http://www.demo.qualityunit.com/pax4/merchants/ Andrej www.gwtphp.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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Radio Button Bug?
hi ... It might depend on what your listener are doing ;) (Particularly if they are changing state of other checks ...) On Fri, Oct 3, 2008 at 12:06 PM, Arji [EMAIL PROTECTED] wrote: Hi Guys, Is this a bug in the GWT? Or maybe I'm implementing it the wrong way. Can anyone try this, having 2 Radio Buttons on the same group, both have added Listeners (CheckboxListenerAdapter). Sometimes it is throwing the slow script message. Is anyone experiencing this? Thanks -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
colorating a tab
Hi folks,
I'm new to GWT (but I read the tutorial). I need to give my tabs a
different color, and this is what I see in my firebug:
.gwt-TabBar .gwt-TabBarItem {standard.css (line 870)
background:#D0E4F6 none repeat scroll 0%;
color:black;
cursor:pointer;
font-weight:bold;
margin-left:6px;
padding:3px 6px;
text-align:center;
}
.gwt-TabBar-Into .gwt-TabBarItem {main.css (line 55)
background:#EE none repeat scroll 0%;
color:#6F6F6F;
}
so the standard css background and color are overriding my locally
defined attrs in main.css.
Is it due to a bad configuration? or is it the way it is supposed to
work?
I added a style to the tab bar:
mainTabPanel.getTabBar().addStyleDependentName(Into);
But this doesn't affect each tab (I was also expeting a method such as
addChildrenStyleDependentName() )...
The only solution I found is to call setStylePrimaryName() and copy
all subsequent styles : for the tabbar, the bar, the items... from
standard.css changing only the colors: I don't think GWT was designed
this way...
Anyway, any help is very welcome.
Regards,
Zied Hamdi
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Re: GWT Menu Active Item Hightlighted
Hi Sumit, Thank you so much for getting back to me. The hovering works just fine. When hover over the menu item the class changes to gwt-MenuItem-selected. But when an actual item is selected, the class/id does not change. So I'm not sure how to change the class so that I can give it specific style. I'd really appreciate it if you could help. Thanks again Sumit. Karmela On Oct 2, 9:54 am, Sumit Chandel [EMAIL PROTECTED] wrote: Hi Karmela, Have you taken a look at the latest Menu Bar widget in the Showcase sample application? It provides default CSS styles for menu items to be highlighted whenever the cursor is hovering over them. You can check it out here: http://gwt.google.com/samples/Showcase/Showcase.html#CwMenuBar Note that you can see both the Java source and the CSS code for the Menu Bar in the same display. You should be able to use this and tweak the styles for the purpose of your application. Hope that helps, -Sumit Chandel On Tue, Sep 30, 2008 at 4:45 PM, karmela [EMAIL PROTECTED] wrote: Hi all, Hope someone can help me with this. I want to have the active menu item to be highlighted. Basically when an item gets selected and goes to a page, i want that link (menu item) to be in a different color. Is that possible to do with GWT? 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: colorating a tab
GWT has default styles for all its widgets. For example, Button class has the style .gwt-Button. The same applies for other widgets, including more complex ones. What you see in firebug, .gwt-TabBar is the default style for TabBar, and .gwtTabBarItem (the next style on the same line) is the style for TabBarItem which is furthermore cascaded (derived) from .gwtTabBar. When you don't set any styles for a widget, it uses its default style (and further, cascades the style for complex widgets). You said the code overwrote your styles defined in main.css, this is because you don't have the required styles names in your CSS file (main.css). Otherwise, GWT would load the styles from your file. If you want other names for your styles, just define them and use setPrimaryStyleName (...). Furthermore (let's say you have a generic setting for a widget and you want further customization for a specific one), use setStyleDependentName (...). To finish, I haven't checked the following case: if I set a style name, let's say shyStyle for a TabBar, I don't know if GWT knows the styles for subitems, like .shyStyle .getTabBarItem Hope it helps, cheers. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: creating a custom MenuItem - ?
You could try creating a custom class that extends Composite :) This was our solution for creating a left sided tab panel (like the regular one you can find in GWT, but tabs are not up, but on left). On Oct 3, 10:08 am, gsmd [EMAIL PROTECTED] wrote: I'm thinking of putting a Button and a TextBox to MenuBar. Is there an easy/described way of extending MenuItem in order to achieve that? Any hints? TIA. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Radio Button Bug?
It looks like you are using the code in a wrong way, maybe you are doing something recursive there. On Oct 3, 1:06 pm, Arji [EMAIL PROTECTED] wrote: Hi Guys, Is this a bug in the GWT? Or maybe I'm implementing it the wrong way. Can anyone try this, having 2 Radio Buttons on the same group, both have added Listeners (CheckboxListenerAdapter). Sometimes it is throwing the slow script message. Is anyone experiencing this? 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Confused by the i18n support for formatting dates, time and currency
Andreas Magnusson schrieb:
Is there a way to just get support for formatting in all the locales
that GWT has in com.google.gwt.i18n.client.Constants?
No, beacuse the classes don't exist inside the compiled
Javascript-result. If the values are coming from the
server-side, you can format them there by adding a
parameter locale to the list of parameters of the
method:
public MyDataResult getServerStatus(String locale){
MyDataResult res = new MyDataResult();
res.startDate = getServerStatus().getStartDate();
Locale l = getLocale();
DateFormat formatter =
SimpleDateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.MEDIUM, l);
res.startDateFormatted = formatter.format(res.startDate);
return res;
}
private Locale getLocale(String locale){
StringTokenizer tt = new StringTokenizer(locale, _);
Locale loc = new Locale(tt.nextToken(), tt.hasMoreTokens() ? tt.nextToken() :
, tt.hasMoreTokens() ? tt.nextToken() : );
return loc;
}
The locale passed to the servlet can be read using JSNI (I don't
know if there is a way to get it via GWT already) or the servlet
reads in the corresponding HTTP-request-header (then you can
leave away the parameter or you use it as default if the parameter
is null).
Regards, Lothar
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Re: Weird problem with shared code
Hi, Since GWT 1.4, IsSerializable is not necessary, Serializable is enough. 1:) AFAIK the Type must be known at compile time so setObject(Object o) is out ! You should have a base Serializable class (know at compile time) 2:) The JavaBean contract must be honored : That getThat / setThat(That that). On Fri, Oct 3, 2008 at 1:07 PM, Alex D [EMAIL PROTECTED] wrote: Hello everybody, I have encountered a very weird problem with shared code between client and server. The client is GWT compatible Java code and the server is pure Java. We have created a serializable class, Request (public class Request implements IsSerializable) which we want to use to exchange data between client and server code. The class was included in the .rpc file generated by the compiler, so it's indeed serializable. Moreover, inside this class we have a method that sets the object for this request; inside this method, an encoding protocol is obtained via object's class name (if this is a list, we typecast it to List and get the first element's class name - if the size is != 0). The code for all protocols is compatible with GWT, since it compiles successfully, the request object arrives at the servlet and the response back. However, writing any of the following lines of code has no effect: request.setObject (o) or request.getObject () It acts as if they don't exist, in either client/server code. I have print-lined before and after the request in servlet, and all prints BEFORE the request sets a list of objects work, BUT all after DON'T; this would indicate that setting an object is a problem, BUT then, the function exists successfully, since client code receives the request. You would ask 'if you get a new request back, what's the problem?' The problem is handling this request, since I have agents that handle the object inside this request, so ... request.getObject () - again, something breaks, because I used Window.alert(...) just before getting the object and again one just after. The second one doesn't get executed, but no errors, no exceptions!! I should mention that hosted mode works just fine and I am able to display the object (so it's handled correctly). Is there any problem if I use a shared package/classes (within same project) for both client and server code? How would I detect this problem since I don't get any errors? Sorry for the long post, I hope you have the patience to read it :) -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: how to proxy all the methods in my RemoteServiceServlet
deanhiller schrieb:
BEFORE methods are even called, I want to chech if there is a User
object in the Session(ie. user is logged in). If there is not, the
Session probably expired and I want to throw a NotLoggedInException on
every one of these methods(but not in the method itself).
By looking into RemoteServiceServlet I see a couple of ways
that should be possible (I haven't tried, so I might be
wrong ;-)
/**
* Override this method to examine the serialized version of the request
* payload before it is deserialized into objects. The default implementation
* does nothing and need not be called by subclasses.
*/
protected void onBeforeRequestDeserialized(String serializedRequest);
Overwriting this method allow you to throw the NotLoggedInException
for every method that is going to be called.
If you want to throw the execption only for a list of methods
(e.g. to allow the login without creating a second servlet),
you might overwrite processCall instead. Here an example of how I
think it should be possible:
public String processCall(String payload) throws SerializationException{
try {
RPCRequest rpcRequest = RPC.decodeRequest(payload, this.getClass(), this);
if (!rpcRequest.getMethod().getName().equals(checkLogin)){
if (!isValidSession){
throw new NotLoggedInException();
}
}
}
catch(SerializationException se){
throw se;
}
catch(Exception e){}
return super.processCall(payload);
}
NotLoggedInException must be derived from SerializableException
I would
prefer this is reusable in an abstract class that implements
RemoteServiceServlet and any GWT Servlet any team creates here will
extend that and inherit this functionality since all the
authentication stuff is the same for all our services.
Above should be usable in an abstract way, you can define the
list of allowed methods by using e.g. annotations or a list
of strings being set in the init-method of the derived servlets.
The only thing missing is a class implemeting AsyncCallback that
overwrites onFailure and checks for the NotLoggedInException to
redirect to the login-panel automatically.
Regards, Lothar
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creating a custom MenuItem - ?
I'm thinking of putting a Button and a TextBox to MenuBar. Is there an easy/described way of extending MenuItem in order to achieve that? Any hints? TIA. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Confused by the i18n support for formatting dates, time and currency
On 3 Okt, 15:03, Lothar Kimmeringer [EMAIL PROTECTED] wrote: I don't see a chance except requesting that information from the server or building your own client-class that is taking the values from the classes of GWT (so that these values are compiled into every iteration. Personally I would go the first way, because otherwise the application might grow in size significantly where just a few bytes per user are needed. If you already exchange data with the server, you might add these informations to the response. Regards, Lothar Good idea. Then I *only* have to modify the date picker to use my locale information instead of GWT's, but it's doable. Perhaps I should request that they make it pluggable instead? /Andreas --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Confused by the i18n support for formatting dates, time and currency
On 3 oct, 08:53, Andreas Magnusson [EMAIL PROTECTED]
wrote:
I have one simple requirement that doesn't seem to be supported by
GWT, even though all the parts seems to be in place.
I want to format dates, time and currency according to the users
default language in their browser. Users expect to see such entities
in formats they understand.
However, I have no intention of translating my application. But as I
have understood it, GWTs support of DateTimeConstants etc rely on the
fact that I have compiled the application for all the locales that my
users might be using. And that's just crazy. I can understand the need
if you want to translate the UI as well.
As an example, Swedish users have no problem with a UI in English, but
we get *very* confused by the US date format.
Is there a way to just get support for formatting in all the locales
that GWT has in com.google.gwt.i18n.client.Constants?
As Lothar said: no.
However, JavaScript's Date object has some handy methods:
toLocaleString(), toLocaleDateString() and toLocaleTimeString(), so
you could use JSNI to get the javascript Date used by the
java.util.Date emulation and call the toLocaleDateString or
toLocaleTimeString on it (java.util.Date::toLocaleString() already
maps to javascript's Date.prototype.toLocaleString):
public static native String toLocaleDateString(Date d) /*-{
return d.jsdate.toLocaleDateString();
}-*/;
You'd have to use some GWT.isScript()-protected code for the hosted-
mode (see below); and I don't know to what extent those methods are
supported in browsers... (they seem to be supported in Firefox and
IE6+ at least, so it shouldn't be a problem using them).
public static String toLocaleDateString(Date d) {
if (GWT.isScript()) {
return nativeToLocaleDateString(d);
} else {
// put your hosted-mode pure Java code here
}
}
private static native String nativeToLocaleDateString(Date d) /*-{
return d.jsdate.toLocaleDateString();
}-*/;
...note that this means too that you're quite limited in the formats
you can use...
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Re: gwt-maps API - Custom Projection boolean error
On Sep 26, 9:49 am, Eric Ayers [EMAIL PROTECTED] wrote: I've found the problem and updated the issue. I've got a proposed solution out for review on the Google-Web-Toolkit-Contributors mailing list. I puleld down the latest 1.0 SVN, and my code works now, thanks!!! Tim --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: how to proxy all the methods in my RemoteServiceServlet
where is the posted project so I can check it out? On Oct 3, 1:42 am, olivier nouguier [EMAIL PROTECTED] wrote: Hi, If you don't want to give a try with Spring( or Guice), you could use AspectJ to weave your desired behaviour (handling security). But it might be more long hard than to learn spring spring security (I've just post a project that illustrate this). hih On Fri, Oct 3, 2008 at 7:23 AM, deanhiller [EMAIL PROTECTED] wrote: I saw someone talking about proxying all the methods to add code(like an aspect or filter) using spring and I am wondering how I can do this(hopefully without spring as I don't feel like learning that right now and just want a quick solution). Basically, if my GWT servlet has these methods public void doSomething(int i); public String doSomethingAgain(String s); public long increaseSomething(int i); BEFORE methods are even called, I want to chech if there is a User object in the Session(ie. user is logged in). If there is not, the Session probably expired and I want to throw a NotLoggedInException on every one of these methods(but not in the method itself). I would prefer this is reusable in an abstract class that implements RemoteServiceServlet and any GWT Servlet any team creates here will extend that and inherit this functionality since all the authentication stuff is the same for all our services. How do I do this in a common way? It looks like the RemoteServiceServlet is kind of screwed up in not exposing a good method to override that I could use as the filter. Any ideas? thanks, Dean -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: how to proxy all the methods in my RemoteServiceServlet
that doesn't work. I have tried that. If you throw an Exception in
onBeforeRequestDeserialized, the Exception never gets translated into
the GWT protocol as that code is lower down the stack and instead GWT
receives an InvocationException and doesn't know what happened.
overriding processCall is to high up and you get no translation
either.
To do what you are suggested, a new method in RPC called invokeMethod
would need to be created like so
(these two lines from RPC.java invokeAndEncodeResponse)
Object result = serviceMethod.invoke(target, args);
responsePayload = encodeResponseForSuccess(serviceMethod,
result,
serializationPolicy);
invokeAndEncodeResponse method would call that new method and I could
override that and then GWT would be translating the exception
correctly for me, BUT GWT does not have this. I have submitted this
change years ago but to no avail as I would LOVE to override that
method.I guess spring is the only way if only I can get some
example code.
On Oct 3, 7:00 am, Lothar Kimmeringer [EMAIL PROTECTED] wrote:
deanhiller schrieb:
BEFORE methods are even called, I want to chech if there is a User
object in the Session(ie. user is logged in). If there is not, the
Session probably expired and I want to throw a NotLoggedInException on
every one of these methods(but not in the method itself).
By looking into RemoteServiceServlet I see a couple of ways
that should be possible (I haven't tried, so I might be
wrong ;-)
/**
* Override this method to examine the serialized version of the request
* payload before it is deserialized into objects. The default implementation
* does nothing and need not be called by subclasses.
*/
protected void onBeforeRequestDeserialized(String serializedRequest);
Overwriting this method allow you to throw the NotLoggedInException
for every method that is going to be called.
If you want to throw the execption only for a list of methods
(e.g. to allow the login without creating a second servlet),
you might overwrite processCall instead. Here an example of how I
think it should be possible:
public String processCall(String payload) throws SerializationException{
try {
RPCRequest rpcRequest = RPC.decodeRequest(payload, this.getClass(), this);
if (!rpcRequest.getMethod().getName().equals(checkLogin)){
if (!isValidSession){
throw new NotLoggedInException();
}
}
}
catch(SerializationException se){
throw se;
}
catch(Exception e){}
return super.processCall(payload);
}
NotLoggedInException must be derived from SerializableException
I would
prefer this is reusable in an abstract class that implements
RemoteServiceServlet and any GWT Servlet any team creates here will
extend that and inherit this functionality since all the
authentication stuff is the same for all our services.
Above should be usable in an abstract way, you can define the
list of allowed methods by using e.g. annotations or a list
of strings being set in the init-method of the derived servlets.
The only thing missing is a class implemeting AsyncCallback that
overwrites onFailure and checks for the NotLoggedInException to
redirect to the login-panel automatically.
Regards, Lothar
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Re: how to proxy all the methods in my RemoteServiceServlet
http://code.google.com/p/net-orcades-spring/ It's dispatching your GWT-RPC. Provides security including authentication authorization around GWT service. There also some test to build some widget that can activate / deactivate when user login / logout. There is a sample as Featured download. Regards. On Fri, Oct 3, 2008 at 3:33 PM, deanhiller [EMAIL PROTECTED] wrote: where is the posted project so I can check it out? On Oct 3, 1:42 am, olivier nouguier [EMAIL PROTECTED] wrote: Hi, If you don't want to give a try with Spring( or Guice), you could use AspectJ to weave your desired behaviour (handling security). But it might be more long hard than to learn spring spring security (I've just post a project that illustrate this). hih On Fri, Oct 3, 2008 at 7:23 AM, deanhiller [EMAIL PROTECTED] wrote: I saw someone talking about proxying all the methods to add code(like an aspect or filter) using spring and I am wondering how I can do this(hopefully without spring as I don't feel like learning that right now and just want a quick solution). Basically, if my GWT servlet has these methods public void doSomething(int i); public String doSomethingAgain(String s); public long increaseSomething(int i); BEFORE methods are even called, I want to chech if there is a User object in the Session(ie. user is logged in). If there is not, the Session probably expired and I want to throw a NotLoggedInException on every one of these methods(but not in the method itself). I would prefer this is reusable in an abstract class that implements RemoteServiceServlet and any GWT Servlet any team creates here will extend that and inherit this functionality since all the authentication stuff is the same for all our services. How do I do this in a common way? It looks like the RemoteServiceServlet is kind of screwed up in not exposing a good method to override that I could use as the filter. Any ideas? thanks, Dean -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Weird problem with shared code
The type must be known for instanced objects, not generic object passing to methods. In GWT, I can't do the following: Object o = new Object (); Instead, I can do this: Object o = new ListBox (false); (altough I surely would typecast again to ListBox so that I can do something with that object). What is that thing about honoring JavaBean? :) I don't know how, but we have solved the problem, but just by coincidence. Up until now, I couldn't find a reasonable explanation for what happened or what the problem was. On Oct 3, 3:52 pm, olivier nouguier [EMAIL PROTECTED] wrote: Hi, Since GWT 1.4, IsSerializable is not necessary, Serializable is enough. 1:) AFAIK the Type must be known at compile time so setObject(Object o) is out ! You should have a base Serializable class (know at compile time) 2:) The JavaBean contract must be honored : That getThat / setThat(That that). On Fri, Oct 3, 2008 at 1:07 PM, Alex D [EMAIL PROTECTED] wrote: Hello everybody, I have encountered a very weird problem with shared code between client and server. The client is GWT compatible Java code and the server is pure Java. We have created a serializable class, Request (public class Request implements IsSerializable) which we want to use to exchange data between client and server code. The class was included in the .rpc file generated by the compiler, so it's indeed serializable. Moreover, inside this class we have a method that sets the object for this request; inside this method, an encoding protocol is obtained via object's class name (if this is a list, we typecast it to List and get the first element's class name - if the size is != 0). The code for all protocols is compatible with GWT, since it compiles successfully, the request object arrives at the servlet and the response back. However, writing any of the following lines of code has no effect: request.setObject (o) or request.getObject () It acts as if they don't exist, in either client/server code. I have print-lined before and after the request in servlet, and all prints BEFORE the request sets a list of objects work, BUT all after DON'T; this would indicate that setting an object is a problem, BUT then, the function exists successfully, since client code receives the request. You would ask 'if you get a new request back, what's the problem?' The problem is handling this request, since I have agents that handle the object inside this request, so ... request.getObject () - again, something breaks, because I used Window.alert(...) just before getting the object and again one just after. The second one doesn't get executed, but no errors, no exceptions!! I should mention that hosted mode works just fine and I am able to display the object (so it's handled correctly). Is there any problem if I use a shared package/classes (within same project) for both client and server code? How would I detect this problem since I don't get any errors? Sorry for the long post, I hope you have the patience to read it :) -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Weird problem with shared code
On Fri, Oct 3, 2008 at 3:33 PM, Alex D [EMAIL PROTECTED] wrote: The type must be known for instanced objects, not generic object passing to methods. In GWT, I can't do the following: Object o = new Object (); Instead, I can do this: Object o = new ListBox (false); (altough I surely would typecast again to ListBox so that I can do something with that object). Sure, but if you write such code *only* on server side, the code will compile, but GWT serialization won't works as ListBox (not a good example ...) will be unknown at GWT compile time. PS: IMSHO ... ;) What is that thing about honoring JavaBean? :) I don't know how, but we have solved the problem, but just by coincidence. Up until now, I couldn't find a reasonable explanation for what happened or what the problem was. On Oct 3, 3:52 pm, olivier nouguier [EMAIL PROTECTED] wrote: Hi, Since GWT 1.4, IsSerializable is not necessary, Serializable is enough. 1:) AFAIK the Type must be known at compile time so setObject(Object o) is out ! You should have a base Serializable class (know at compile time) 2:) The JavaBean contract must be honored : That getThat / setThat(That that). On Fri, Oct 3, 2008 at 1:07 PM, Alex D [EMAIL PROTECTED] wrote: Hello everybody, I have encountered a very weird problem with shared code between client and server. The client is GWT compatible Java code and the server is pure Java. We have created a serializable class, Request (public class Request implements IsSerializable) which we want to use to exchange data between client and server code. The class was included in the .rpc file generated by the compiler, so it's indeed serializable. Moreover, inside this class we have a method that sets the object for this request; inside this method, an encoding protocol is obtained via object's class name (if this is a list, we typecast it to List and get the first element's class name - if the size is != 0). The code for all protocols is compatible with GWT, since it compiles successfully, the request object arrives at the servlet and the response back. However, writing any of the following lines of code has no effect: request.setObject (o) or request.getObject () It acts as if they don't exist, in either client/server code. I have print-lined before and after the request in servlet, and all prints BEFORE the request sets a list of objects work, BUT all after DON'T; this would indicate that setting an object is a problem, BUT then, the function exists successfully, since client code receives the request. You would ask 'if you get a new request back, what's the problem?' The problem is handling this request, since I have agents that handle the object inside this request, so ... request.getObject () - again, something breaks, because I used Window.alert(...) just before getting the object and again one just after. The second one doesn't get executed, but no errors, no exceptions!! I should mention that hosted mode works just fine and I am able to display the object (so it's handled correctly). Is there any problem if I use a shared package/classes (within same project) for both client and server code? How would I detect this problem since I don't get any errors? Sorry for the long post, I hope you have the patience to read it :) -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Label + Hyperlink + Label
I'm wondering if this is really the best approach, of it I'm one widget short of a better idea. I'm just trying to write some text, a gwt Hyperlink, and more text. Basically trying to concatenate labels and Hyperlinks. I can do this by creating a HorizontalPanel, adding the label, then adding the Hyperlink, then adding more labels, more Hyperlinks, and so on. But is it really necessary for the HorizontalPanel to be there? Is there something else that would be better? Just off hand, I thought of things like taking the Hyperlink's .getHTML() and concatenating that with the label's text, but that isn't what I'm after. 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Ajax on a server that does not support servlet
you need to read this explanation:
http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/faca1575f306ba0f
It talks specifically about RPC, but it is relevant to all
Asynchronous calls.
-jason
On Oct 2, 2008, at 6:47 PM, slow wrote:
Thank you Jason for your help. That was a bad mistake. Anywhere I used
other code and it worked. The problem i have is that I have conficting
results. One statement tells me I have the data and the other says the
same data is null. Worse enough, if I call the same statement twice i
get different results. for example, passing the same string to
window.alert twice brings null and some correct string. I want to
later plot the received data using canvas. Here is the code.
package com.daq.client;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.DialogBox;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
import com.google.gwt.http.client.*;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.user.client.Window;
/**
* Entry point classes define codeonModuleLoad()/code.
*/
public class thesis implements EntryPoint {
public static final int STATUS_CODE_OK = 200;
static String recvd_data;
private VerticalPanel mainPanel = new VerticalPanel();
DialogBox diagbox = new DialogBox();
Button button = new Button(Click Me);
Label testLabel = new Label();
static String my_data;
//String[] formated_data;
public static String doGet(String url) {
RequestBuilder builder = new RequestBuilder(RequestBuilder.GET,
url);
try {
Request response = builder.sendRequest(null, new
RequestCallback() {
public void onError(Request request, Throwable exception) {
recvd_data = Unable to reach the server;
Window.alert(recvd_data);
//responseText(recvd_data);
}
public void onResponseReceived(Request request, Response
response) {
// Code omitted for clarity
//String recvd_data;
if(response.getStatusCode() == STATUS_CODE_OK)
{
recvd_data = response.getText();
}
else
recvd_data = response.getStatusText();
recvd_data = recvd_data.trim();
//responseText(recvd_data);
//Window.alert(recvd_data);
}
});
} catch (RequestException e) {
recvd_data = Unresolved Error;
//responseText(recvd_data);
Window.alert(recvd_data);
return recvd_data;
}
return recvd_data;
}
/**
* get the string received from the http response
*/
public static void responseText(String resp_text)
{
my_data = resp_text;
//Window.alert(my_data);
}
public void onModuleLoad() {
recvd_data = doGet(sw.csv); //it seems that null is
returned in
this case
/*line 82 *///Window.alert(recvd_data);
/*if u uncomment line 82, it will print null on a window and the
correct text will display by line 93
* however when u leave it commented, line 93 has no effect */
mainPanel.setTitle(Main Panel);
mainPanel.setBorderWidth(300);
mainPanel.add(button);
//mainPanel.setVisible(true);
//formated_data = my_data.split(,);
/* line 93*/ testLabel.setText(recvd_data);
diagbox.setTitle(Dialog Box);
diagbox.setWidth(100%);
diagbox.setHeight(20%);
diagbox.setText(recvd_data);
RootPanel.get().add(testLabel);
//RootPanel.get().add(diagbox);
//RootPanel.get().add(mainPanel);
}
}
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Re: how to proxy all the methods in my RemoteServiceServlet
deanhiller schrieb:
BEFORE methods are even called, I want to chech if there is a User
object in the Session(ie. user is logged in). If there is not, the
Session probably expired and I want to throw a NotLoggedInException on
every one of these methods(but not in the method itself).
By looking into RemoteServiceServlet I see a couple of ways
that should be possible (I haven't tried, so I might be
wrong ;-)
/**
* Override this method to examine the serialized version of the request
* payload before it is deserialized into objects. The default implementation
* does nothing and need not be called by subclasses.
*/
protected void onBeforeRequestDeserialized(String serializedRequest);
Overwriting this method allow you to throw the NotLoggedInException
for every method that is going to be called.
If you want to throw the execption only for a list of methods
(e.g. to allow the login without creating a second servlet),
you might overwrite processCall instead. Here an example of how I
think it should be possible:
public String processCall(String payload) throws SerializationException{
try {
RPCRequest rpcRequest = RPC.decodeRequest(payload, this.getClass(), this);
if (!rpcRequest.getMethod().getName().equals(checkLogin)){
if (!isValidSession){
throw new NotLoggedInException();
}
}
}
catch(SerializationException se){
throw se;
}
catch(Exception e){}
return super.processCall(payload);
}
NotLoggedInException must be derived from SerializableException
I would
prefer this is reusable in an abstract class that implements
RemoteServiceServlet and any GWT Servlet any team creates here will
extend that and inherit this functionality since all the
authentication stuff is the same for all our services.
Above should be usable in an abstract way, you can define the
list of allowed methods by using e.g. annotations or a list
of strings being set in the init-method of the derived servlets.
The only thing missing is a class implemeting AsyncCallback that
overwrites onFailure and checks for the NotLoggedInException to
redirect to the login-panel automatically.
Regards, Lothar
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Re: Moderation policy back in effect: new members' messages moderated to prevent spam
Hi, I am new to this group and cannot post new topics to this group. Is this because of the spam policy in place? Thanks /lim/ --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT SITE? (example)
GWTPHP looks really nice !!Is there a preview release I could try? On Fri, Oct 3, 2008 at 5:23 AM, Andrej Harsani [EMAIL PROTECTED] wrote: check this out: http://www.demo.qualityunit.com/pax4/merchants/ Andrej www.gwtphp.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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Label + Hyperlink + Label
Tricky, but doesn't quite work in my attempts. Both HTMLPanel.add() and HTMLPanel.addAndReplaceElement() puts a newline before the link, so I end up with: blah blah link blah blah instead of: blah blah link blah blah I'm putting the HTMLPanel in a FlexTable's cell. On Oct 3, 10:37 am, Ian Bambury [EMAIL PROTECTED] wrote: You could try HTMLPanel p = new HTMLPanel(Click span id='link'/span to go there); p.add(new Hyperlink(here, token), link); (I might have the parameters the wrong way around, but you get the idea.) Ian http://examples.roughian.com 2008/10/3 Brian [EMAIL PROTECTED] I'm wondering if this is really the best approach, of it I'm one widget short of a better idea. I'm just trying to write some text, a gwt Hyperlink, and more text. Basically trying to concatenate labels and Hyperlinks. I can do this by creating a HorizontalPanel, adding the label, then adding the Hyperlink, then adding more labels, more Hyperlinks, and so on. But is it really necessary for the HorizontalPanel to be there? Is there something else that would be better? Just off hand, I thought of things like taking the Hyperlink's .getHTML() and concatenating that with the label's text, but that isn't what I'm after. 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: how to proxy all the methods in my RemoteServiceServlet
Hi, You can override the RemoteServiceServlet 'processCall' method, which is invoked for every incoming call (this is how Hibernate4GWT works seamlessly with input ou output parameters). Regards Bruno On 3 oct, 16:16, walden [EMAIL PROTECTED] wrote: Dean, GWT RPC clearly does not have the security aspect designed in; it seems designed for use with an orthogonal security mechanism, such as found in the HTTP specs. A bit of a leap, but have you mentally walked through what would happen if you ditched SESSION-based security and went with Digest? I think this approach would sidestep a huge amount of custom programming for you. Question is, what would you be losing that you can't live without? In my application, if I start up a browser and type the URL of my RPC service (before authenticating), the JAAS system in JBoss issues a challenge from way down in the stack (my RPC code never sees it), and the browser puts up a login form. This is pretty much what should happen when your logged in user encounters a session timeout. Walden On Oct 3, 3:42 am, olivier nouguier [EMAIL PROTECTED] wrote: Hi, If you don't want to give a try with Spring( or Guice), you could use AspectJ to weave your desired behaviour (handling security). But it might be more long hard than to learn spring spring security (I've just post a project that illustrate this). hih On Fri, Oct 3, 2008 at 7:23 AM, deanhiller [EMAIL PROTECTED] wrote: I saw someone talking about proxying all the methods to add code(like an aspect or filter) using spring and I am wondering how I can do this(hopefully without spring as I don't feel like learning that right now and just want a quick solution). Basically, if my GWT servlet has these methods public void doSomething(int i); public String doSomethingAgain(String s); public long increaseSomething(int i); BEFORE methods are even called, I want to chech if there is a User object in the Session(ie. user is logged in). If there is not, the Session probably expired and I want to throw a NotLoggedInException on every one of these methods(but not in the method itself). I would prefer this is reusable in an abstract class that implements RemoteServiceServlet and any GWT Servlet any team creates here will extend that and inherit this functionality since all the authentication stuff is the same for all our services. How do I do this in a common way? It looks like the RemoteServiceServlet is kind of screwed up in not exposing a good method to override that I could use as the filter. Any ideas? thanks, Dean -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri- 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Multiple *.gwt.xml in One Module
Hi, I was following Solution #6 (Drag and Drop) example from the book Google Web Toolkit Solutions: More Cool Useful Stuff. I used Intellij 7 with GWT 1.5 to compile the example but failed with the errors reported. I tried a few things unsuccessfully and finally I removed the line inherits name='com.gwtsolutions.components.client.ui.Dnd'/ from /com/ gwtsolutions/DragAndDrop.gwt.xml (included below) and everything went smoothly. My question is, should this line be removed since we already inherited Components with this directive inherits name='com.gwtsolutions.components.Components'/ in the previous line? Both com.gwtsolutions.components.client.ui.Dnd and com.gwtsolutions.components.Components are in the same module where Dnd.gwt.xml is 2 level down drom Components.gwt.xml. Is it possible to have 2 gwt.xml files in 1 module? Thanks /lim/ --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Label + Hyperlink + Label
On 3 oct, 17:24, Brian [EMAIL PROTECTED] wrote:
Tricky, but doesn't quite work in my attempts.
Both HTMLPanel.add() and HTMLPanel.addAndReplaceElement() puts a
newline before the link, so I end up with:
blah blah
link
blah blah
instead of: blah blah link blah blah
I'm putting the HTMLPanel in a FlexTable's cell.
It has nothing to do with the HTMLPanel actually, but a problem with
the Hyperlink widget: it's made up of a DIV wrapping an A, that's this
DIV wrapper that's causing the line breaks, because a DIV is
display:block by default.
I'd suggest replacing the Hyperlink with an Anchor+ClickListener.
I'd also use a FlowPanel+InlineLabels but it's up to you, the
HTMLPanel should work like a charm too:
FlowPanel container = new FlowPanel();
container.add(new InlineLabel(some text );
Anchor link = new Anchor(link, #token);
link.addClickListener(new ClickListener() {
public void onClick(Widget sender) {
History.newItem(token);
DOM.eventGetCurrentEvent().preventDefault();
}
});
container.add(link);
container.add(new InlineLabel( some more text);
...and/or you could vote for (i.e. star) the issue 2901:
http://code.google.com/p/google-web-toolkit/issues/detail?id=2901
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Re: Label + Hyperlink + Label
If it weren't such pita, it'd be sweet. But yeah, that worked great.
Since I'm doing this on a number of links in a bunch of text, I
wrapped up the click listener as such instead of new'ing one each
time.
ClickListener linkClickListener = new ClickListener() {
public void onClick(Widget sender) {
History.newItem(((Anchor)sender).getHref().substring(1));
DOM.eventGetCurrentEvent().preventDefault();
}
};
Thanks much.
On Oct 3, 11:44 am, Thomas Broyer [EMAIL PROTECTED] wrote:
On 3 oct, 17:24, Brian [EMAIL PROTECTED] wrote:
Tricky, but doesn't quite work in my attempts.
Both HTMLPanel.add() and HTMLPanel.addAndReplaceElement() puts a
newline before the link, so I end up with:
blah blah
link
blah blah
instead of: blah blah link blah blah
I'm putting the HTMLPanel in a FlexTable's cell.
It has nothing to do with the HTMLPanel actually, but a problem with
the Hyperlink widget: it's made up of a DIV wrapping an A, that's this
DIV wrapper that's causing the line breaks, because a DIV is
display:block by default.
I'd suggest replacing the Hyperlink with an Anchor+ClickListener.
I'd also use a FlowPanel+InlineLabels but it's up to you, the
HTMLPanel should work like a charm too:
FlowPanel container = new FlowPanel();
container.add(new InlineLabel(some text );
Anchor link = new Anchor(link, #token);
link.addClickListener(new ClickListener() {
public void onClick(Widget sender) {
History.newItem(token);
DOM.eventGetCurrentEvent().preventDefault();
}});
container.add(link);
container.add(new InlineLabel( some more text);
...and/or you could vote for (i.e. star) the issue
2901:http://code.google.com/p/google-web-toolkit/issues/detail?id=2901
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Re: how to proxy all the methods in my RemoteServiceServlet
If go for non-spring solution, yes, you should override the
processCall().
Just take a look at the source, you should invoke the
RPC.encodeResponseForFailure(method, ex)
to encode the Exception and send back to client.
I didnt test. It may not compile, you may try anyway ... :)
public String processCall(String payload) throws
SerializationException {
try {
RPCRequest rpcRequest = RPC.decodeRequest(payload,
this.getClass(), this);
if (isValidSession()) // may add other conditions when should
check, when should not check..
{
return RPC.invokeAndEncodeResponse(this,
rpcRequest.getMethod(),
rpcRequest.getParameters(),
rpcRequest.getSerializationPolicy());
}
else
{
return RPC.encodeResponseForFailure(rpcRequest.getMethod(),
new NotLoggedInException());
}
} catch (IncompatibleRemoteServiceException ex) {
getServletContext().log(
An IncompatibleRemoteServiceException was thrown while
processing this call.,
ex);
return RPC.encodeResponseForFailure(null, ex);
}
}
private boolean isValidSession()
{
//...
}
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Re: how to proxy all the methods in my RemoteServiceServlet
Dean, GWT RPC clearly does not have the security aspect designed in; it seems designed for use with an orthogonal security mechanism, such as found in the HTTP specs. A bit of a leap, but have you mentally walked through what would happen if you ditched SESSION-based security and went with Digest? I think this approach would sidestep a huge amount of custom programming for you. Question is, what would you be losing that you can't live without? In my application, if I start up a browser and type the URL of my RPC service (before authenticating), the JAAS system in JBoss issues a challenge from way down in the stack (my RPC code never sees it), and the browser puts up a login form. This is pretty much what should happen when your logged in user encounters a session timeout. Walden On Oct 3, 3:42 am, olivier nouguier [EMAIL PROTECTED] wrote: Hi, If you don't want to give a try with Spring( or Guice), you could use AspectJ to weave your desired behaviour (handling security). But it might be more long hard than to learn spring spring security (I've just post a project that illustrate this). hih On Fri, Oct 3, 2008 at 7:23 AM, deanhiller [EMAIL PROTECTED] wrote: I saw someone talking about proxying all the methods to add code(like an aspect or filter) using spring and I am wondering how I can do this(hopefully without spring as I don't feel like learning that right now and just want a quick solution). Basically, if my GWT servlet has these methods public void doSomething(int i); public String doSomethingAgain(String s); public long increaseSomething(int i); BEFORE methods are even called, I want to chech if there is a User object in the Session(ie. user is logged in). If there is not, the Session probably expired and I want to throw a NotLoggedInException on every one of these methods(but not in the method itself). I would prefer this is reusable in an abstract class that implements RemoteServiceServlet and any GWT Servlet any team creates here will extend that and inherit this functionality since all the authentication stuff is the same for all our services. How do I do this in a common way? It looks like the RemoteServiceServlet is kind of screwed up in not exposing a good method to override that I could use as the filter. Any ideas? thanks, Dean -- Quand le dernier arbre sera abattu, la dernière rivière asséchée, le dernier poisson péché, l'homme va s'apercevoir que l'argent n'est pas comestible - proverbe indien Cri- 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT SITE? (example)
I need applications makes with R1.5 + eclipse + cypal study please, if anybody have this give me 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT SITE? (example)
Check out Lombardi Blueprint at https://blueprint.lombardi.com or Queplix (http://demo.queplix.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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
z-index or zIndex which is correct :?
I had this problem earlier (http://groups.google.com/group/Google-Web- Toolkit/browse_thread/thread/2955916fb09914d4/7613eb55206b2114? lnk=gstq=zindex#7613eb55206b2114) I fixed it by using zindex, but now looking at my code I'm getting quite puzzled. Just which is correct? At the moment my code is a horrible fudge that uses both z-index and zindex. I'd like to clean it up. According to css referances its z-index yet according to much gwt code its zIndex. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: z-index or zIndex which is correct :?
If you are writing css it is z-index. If you are playing with the DOM, it's zIndex. Same with everything else.font-size / fontSize etc Ian http://examples.roughian.com 2008/10/3 darkflame [EMAIL PROTECTED] I had this problem earlier (http://groups.google.com/group/Google-Web- Toolkit/browse_thread/thread/2955916fb09914d4/7613eb55206b2114? lnk=gstq=zindex#7613eb55206b2114) I fixed it by using zindex, but now looking at my code I'm getting quite puzzled. Just which is correct? At the moment my code is a horrible fudge that uses both z-index and zindex. I'd like to clean it up. According to css referances its z-index yet according to much gwt code its zIndex. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT SITE? (example)
This is full RIA based on GWT:- http://www.streetsine.com On Oct 4, 1:25 am, Davsket [EMAIL PROTECTED] wrote: Hi, you should try this one: SonidoLocal -http://www.sonidolocal.com, it's the first portal in latam of legal music streaming... full GWT and GWT-EXT. On Oct 3, 3:42 am, rov.ciso [EMAIL PROTECTED] wrote: Good day! Do anybody know sites based on GWT? What is big project write with GWT? Please, give me url. 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Label + Hyperlink + Label
Why faff about with an anchor and clicklistener when you can just put this
.gwt-Hyperlink
{
display : inline;
}
in your css?
You can then throw one lot of text at the HTMLPanel with span
placeholders.
Ian
http://examples.roughian.com
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Re: GWT SITE? (example)
Hi, you should try this one: SonidoLocal - http://www.sonidolocal.com, it's the first portal in latam of legal music streaming... full GWT and GWT-EXT. On Oct 3, 3:42 am, rov.ciso [EMAIL PROTECTED] wrote: Good day! Do anybody know sites based on GWT? What is big project write with GWT? Please, give me url. 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Severe performance problem after upgrading to GWT 1.5.2 (final)
We noticed a slow down by just switching from 1.5RC2 to 1.5.2 more specifically on FireFox 3. I recently tested on Chrome and Safari 3 and the performance there is significantly better it seems to be well over 10x faster. I think there might be a bug using the scripting engine on FireFox and also IE. Or it could be the java scripting engine on Safari is really that much better. The overall app is much faster on Safari, but i would say the biggest issue is with RPC calls. On Oct 3, 7:22 am, Sumit Chandel [EMAIL PROTECTED] wrote: Hi Manuel, It seems hbatista's slowdown in performance was related to a database change. In your case, are you still experiencing slowdowns on your RPC calls? Also, did these slowdowns occur when you went from 1.4.x to 1.5.2, or were you always facing slow RPC calls in your GWT application? Thanks, -Sumit Chandel On Tue, Sep 30, 2008 at 8:26 PM, Manuel [EMAIL PROTECTED] wrote: Has anyone figgured this out. I am having sever performance problems with this. accross the board all 1.5.2 compiled apps are a lot slower On Sep 18, 4:59 am, hbatista [EMAIL PROTECTED] wrote: Thanks for the suggestion, but changing data types didn't help. I did not profile my code, but the observed behavior is: 1. RPC call is made 2. server side method runs and returns (quickly!) 3. ... huge delay with no CPU activity ... 4. finally client side onSuccess() RPC callback runs What could be happening on step 3 ? I took a quick look at the serializer source code, but it's too different from 1.4.60 to compare side by side. On Sep 18, 2:06 am, Tim [EMAIL PROTECTED] wrote: not sure, but maybe there are some datatype penalty issues (long vs double etc). Did you profile your server side code? On Sep 17, 10:28 am, hbatista [EMAIL PROTECTED] wrote: Hi, I've just upgraded one of my projects from 1.4.60 to1.5.2, and everything went very smoothly, but... when my application tries to fetch a large number of objects from the server (via RPC, returns HashMapInteger,xxx, about 6000 entries) it takes a very very long time! Before the upgrade this was very fast (at least in Firefox and Chrome, not in IE). Strangely, while waiting for the RPC call to return there is NO cpu activity... For me this seems related to some deep changes in the serialization code (taking a guess here), before the upgrade trying to fetch so many records from the server would crash IE with 'JavaScript SyntaxError exception: Out of memory', while now it works (good!) but is veryslow in all browsers (bad!). Can someone help me debug this problem?- 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: any plans to offer java bean support in future?
Why would you need this kind of code in GWT? On Oct 3, 3:50 pm, mwaschkowski [EMAIL PROTECTED] wrote: Hi All, I've been using a 3rd party wysiwyg tool to create my gwt interface, and one thing I've run into is that gwt does not support java bean type customization. The following was suggested: General JavaBean support would be good which would include standardize support for property accessors, default constructors, custom editors, customizers, Beans.isDesignTime(), etc. see:http://www.instantiations.com/forum/viewtopic.php?f=11t=2174sid=301... The thing that I would need is custom editors. Would there be any plans in the future to support this kind of thing? Thanks very much, Mark --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
IE 6 doesn't finish load page
Hi people, I have a serious problem I suggest to use the gwt technology for the new projects of my company I use gwt 1.5.2 and gwt-ext 2.0.5 every thing go fine but when I try to prove the app in IE 6 the page load don't finish, my CPU get more than 50% for iexplorer.exe and don´t finish never. This usually happens the first time, then I kill process I try again and wrko fine woth out error of js, but unexpectedly it happens again and kill process and work fine ... and another time crash. I navigate for many topics, forums, suggest but I can't fine the exactly same problem, and suspect that is not for RPC calls because the data some time appear but the loading doesn´t finish never. IE version : 6.0.2900.2180 jscript.dll: 5.6.0.8834 Pls help. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: colorating a tab
Does anybody know if it's possible to specify one or more CSS file(s)
(not styles, but rather files containing styles) from client code?
(currently I link them within HTML file).
On Oct 3, 4:01 pm, Thomas Broyer [EMAIL PROTECTED] wrote:
On 3 oct, 12:12, Zied Hamdi [EMAIL PROTECTED] wrote:
Hi folks,
I'm new to GWT (but I read the tutorial). I need to give my tabs a
different color, and this is what I see in my firebug:
.gwt-TabBar .gwt-TabBarItem {standard.css (line 870)
background:#D0E4F6 none repeat scroll 0%;
color:black;
cursor:pointer;
font-weight:bold;
margin-left:6px;
padding:3px 6px;
text-align:center;}
.gwt-TabBar-Into .gwt-TabBarItem {main.css (line 55)
background:#EE none repeat scroll 0%;
color:#6F6F6F;
}
so the standard css background and color are overriding my locally
defined attrs in main.css.
Is it due to a bad configuration? or is it the way it is supposed to
work?
How is the main.css included? It might be a priority problem: if
main.css is loaded before standard.css (which will probably be the
case if main.css is not GWT-injected with a stylesheet in your
module's gwt.xml), given that the two selectors have the same
specificity [1], their rules are evaluated in the order they've been
loaded, so the background and color set in standard.css will override
the one set in your main.css.
Try adding an !important to your rules and see if they're applied
(with !important, the rules in standard.css won't override your own !
important rules, even though they are evaluated after them).
If that's the case, try to find a way for your stylesheet to be loaded
after standard.css (and remove the !important, which is bad practice
and recommended for user-stylesheets only [2]), either by getting your
main.css injected by GWT, or by inheriting StandardResources (instead
of Standard) and calling the standard.css by yourself...
If I were you however, I'd file a bug to have the injected stylesheet
come *before* the existing ones so that the ones already present in
the page override the injected stylesheets...
[1]http://www.w3.org/TR/CSS21/cascade.html#specificity
[2]http://www.w3.org/TR/CSS21/cascade.html#important-rules
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Re: GWT-Gadget same-origin security restriction
Hello Jose,
The solution to send data with the request builder is to use a POST:
RequestBuilder rb = new RequestBuilder(RequestBuilder.POST, url);
The difference of POST and GET ist:
GET: only the address line is sent to the server. If you want to
send data with a GET you must put it as a parameter into the URL:
http://www.xyz.dedata=thisisthedatata
POST: you can provide an URL and send additional data:
requestBuilder.sendRequest(data, new RequestCallback() {
...
}
OK, I have got a question, too:
What is this line doing? url = intrinsics.getCachedUrl(url, 1);
What does it do with the URL and why can it avoid the same origin
problem?
I'm not using gadgets but I'm looking for a possibility how to call a
web service from GWT that is not on the same server as my GWT site.
(E.g. calling the amazon web service from my site (client) which is
built with GWT).
One solution of course is that I make a call to my server and the
servlet then calls the webservice and answers to the GWT client with
the response data from the web service. But I explicitly wnat to avoid
to make a call to my server.
If you have any idea please let me know.
Regards
Andreas
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Re: self-removing LoadListener
hmm that didn't work, but i managed to get it working with a
DeferredCommand.
here's an idea of how i've got it set up:
image.setUrl(theUrl);
DeferredCommand.addCommand(new Command() {
public void execute() {
//my resizing code
}
});
On Oct 3, 2:39 am, mon3y [EMAIL PROTECTED] wrote:
Hey
Straight after you set the URL of the imageremove the listener.
:)
On Oct 2, 11:04 pm, D L H [EMAIL PROTECTED] wrote:
Hello.
I'm trying to create an Image LoadListener that will remove itself
from the image once the image is finished loading. I tried using
image.removeLoadListener(this); but that gave me a
ConcurrentModificationException. Then I tried making the LoadListener
a final and using image.removeLoadListener(myLoadListener); but
myLoadListener was not yet initialized since it was called from inside
it's own onLoad method. I also played around with DeferredCommand a
bit, but I'm not sure how to get that to work.
Thanks in advance for your help.
-DLH
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Tab panel Css
Hi all, i know how to create the tab panel. but not able to add the image and add css to it.. my code is final RootPanel rootPanel = RootPanel.get(); final TabPanel tabPanel = new TabPanel(); rootPanel.add(tabPanel, 0, 0); tabPanel.setSize(747px, 355px); final AbsolutePanel absolutePanel = new AbsolutePanel(); tabPanel.add(absolutePanel, Tab); absolutePanel.setHeight(100px); final AbsolutePanel absolutePanel_1 = new AbsolutePanel(); tabPanel.add(absolutePanel_1, Tab); absolutePanel_1.setHeight(300px); final AbsolutePanel absolutePanel_2 = new AbsolutePanel(); tabPanel.add(absolutePanel_2, Tab); absolutePanel_2.setHeight(300px); tabPanel.selectTab(0); i want to give space between the tabs buttons and also i want add image to the tab buttons.. can any one help me in this. if possible please give me example along with code. thanks in advance Regards Ananda --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
SocketTimeOutException
I am developing a GWT-based client that accesses a database frequently to display status information about an application. After receiving the response of the RPC-request, the client displays the status information fetched, checks if the application has ended; if not, the client will send another request... and the whole game repeats. Technology used: - Tomcat 1.6.0.14 - Java 5 - GWT 1.5.2, RPC After a while - the elapsed time is not always the same - I get the following exception: 29.09.2008 14:54:26 org.apache.catalina.core.ApplicationContext log SEVERE: Exception while dispatching incoming RPC call java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(SocketInputStream.java:129) at org.apache.coyote.http11.InternalInputBuffer.fill(InternalInputBuffer.java: 716) at org.apache.coyote.http11.InternalInputBuffer $InputStreamInputBuffer.doRead(InternalInputBuffer.java:746) at org.apache.coyote.http11.filters.IdentityInputFilter.doRead(IdentityInputFilter.java: 116) at org.apache.coyote.http11.InternalInputBuffer.doRead(InternalInputBuffer.java: 675) at org.apache.coyote.Request.doRead(Request.java:428) at org.apache.catalina.connector.InputBuffer.realReadBytes(InputBuffer.java: 297) at org.apache.tomcat.util.buf.ByteChunk.substract(ByteChunk.java: 405) at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java: 312) at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java: 193) at com.google.gwt.user.server.rpc.RPCServletUtils.readContentAsUtf8(RPCServletUtils.java: 146) at com.google.gwt.user.server.rpc.RemoteServiceServlet.readContent(RemoteServiceServlet.java: 335) at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java: 77) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java: 290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java: 206) at jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:118) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java: 235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java: 206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java: 233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java: 175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java: 128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java: 102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java: 109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java: 263) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java: 844) at org.apache.coyote.http11.Http11Protocol $Http11ConnectionHandler.process(Http11Protocol.java:584) at org.apache.tomcat.util.net.JIoEndpoint $Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:595) I have to add that this exception never occured in hosted mode. Solution attempt: Catch the InvocationException in the onFailure- Method in AsyncCallback and post the request again. This makes my status display work fine without any failure in hosted mode and on my local tomcat. As soon as it is deployed on our productive Tomcat, the same exception is thrown. Similar problems have been described in 1. http://groups.google.com/group/Google-Web-Toolkit/tree/browse_frm/month/2007-01/3e03ad1af5d5a179?rnum=151_done=%2Fgroup%2FGoogle-Web-Toolkit%2Fbrowse_frm%2Fmonth%2F2007-01%3F 2. http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/8f2bb3dc5e5f42f7 ... but none of them has provided any solution. Any help will be appreciated. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Project bin directory
From what I can see, the bin directory gets created when you initially import your project into Eclipse. Once created, myproject-compile updates the class files in this directory. I just tried deleting it's contents ($ rm bin/*). No amount of running myproject-compile would recreate the contents. I had to close and delete the project (without deleting the files) and reimport it for it to work. Is this right? What have others discovered? There have been times in the past when I've removed the contents and somehow they came back-- either auto-magically or by me retrieving them from my last backup. On Sep 16, 10:00 am, Willis [EMAIL PROTECTED] wrote: Kind of a simple question, but I notice that some of my GWT projects have abindirectory. I understand it holds the compiled versions of my class files from src, but it is not created when aprojectis started (using theproject/application creators), so when is it created? Also, what happens if I delete it? Thanks in advance for any clarifications! --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
erroneous call failed on server when servlet is successful
I have two GWT projects, call them ProjectA and ProjectB, that I would like to keep separate. When ProjectA.war file is created, I'm integrating ProjectB as a subproject. Eventually, there may be multiple subprojects inside ProjectA, and ProjectB may also be used as a subproject elsewhere. In my integrated projects, anchors in ProjectA can now call ./ ProjectB.html?foo=bar without creating a new HttpSession, which is grand because ProjectA already holds a login and license on a remote application and database, and can share this seemlessly with ProjectB. That part works fine. On load, a servlet call starts in ProjectB to attach to the database and pull up a file. It all works just like when ProjectB runs standalone, EXCEPT I always get an alert with the message The call failed on the server; see server log for details. Tomcat's localhost.log shows java.lang.IndexOutOfBoundsException: Index: 0, Size: 0. (The full trace is at the end of this message.) This exact same message occurs again when ProjectB makes a servlet call, although otherwise the call is behaves correctly. My distrib directory for ProjectA looks like a normal GWT distribution directory. I then insert ProjectB (using Robert Hanson's GWT in Action Ch 16 as a guide). I get this: ProjectA --distrib --**.cache.html, etc --ProjectA.html --ProjectA.css --ProjectB.html --ProjectB.css --ProjectB --**.cache.html, etc --WEB-INF --classes --lib --web.xml I have merged the web.xml files of both projects as well as the classes and lib directories. In web.xml, servlets from ProjectA look like servlet-mapping servlet-nameaServices/servlet-name url-pattern/servlet/aServices/url-pattern /servlet-mapping While ProjectB looks like servlet-mapping servlet-namebServices/servlet-name url-pattern/ProjectB/servlet/bServices/url-pattern /servlet-mapping Any ideas what's happening? You can see from the message below that the error seems to be coming from GWT. Oct 3, 2008 6:16:48 PM org.apache.catalina.core.ApplicationContext log SEVERE: Exception while dispatching incoming RPC call java.lang.IndexOutOfBoundsException: Index: 0, Size: 0 at java.util.ArrayList.RangeCheck(ArrayList.java:547) at java.util.ArrayList.get(ArrayList.java:322) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.extract(ServerSerializationStreamReader.java: 617) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.readInt(ServerSerializationStreamReader.java: 432) at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamReader.prepareToRead(AbstractSerializationStreamReader.java: 38) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.prepareToRead(ServerSerializationStreamReader.java: 383) at com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:234) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java: 163) at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java: 86) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java: 290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java: 206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java: 233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java: 175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java: 128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java: 102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java: 109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java: 263) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java: 190) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java: 283) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java: 697) at org.apache.jk.common.ChannelSocket $SocketConnection.runIt(ChannelSocket.java:889) at org.apache.tomcat.util.threads.ThreadPool $ControlRunnable.run(ThreadPool.java:690) at java.lang.Thread.run(Thread.java:619) --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group
Re: Running Windows-built GWTTestCase on Sparc/Solaris ??
The error looks like the GWT tests are trying to use the Windows development kit on your Linux machine. To run tests on your Linux build machine, you need to switch your build to use the GWT Linux distribution. What's happening is that the GWTTestCase tests are trying to start up a headless hosted mode browser, which is different on each platform (Mac, Windows, Linux). Use the Windows dev kit on your laptop and the Linux dev kit on your build machine. To make this, you'll need to do some per-OS switching in your build scripts -- in Ant, you may need to use the os with a conditional tag to set the appropriate libraries. See this thread for more information: http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/ecebc719ec7d2a10 Dan Can't load library: .../libswt-win32-3235.so java.lang.UnsatisfiedLinkError: Can't load library: .../libswt- win32-3235.so at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1650) --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT deployment to JBoss
Hello,
Use
extraJvmArgs-Xmx1024m/extraJvmArgs
Regards,
Carlos
On Thu, Oct 2, 2008 at 7:59 PM, Ronak Patel [EMAIL PROTECTED] wrote:
Thanks,
That did it.
Another question for you...I am now getting OutOfMemoryErrors while
trying to compile and build Google Web Toolkit from Maven. I tried
setting my pom file to:
plugin
groupIdcom.totsp.gwt/groupId
artifactIdmaven-googlewebtoolkit2-plugin/
artifactId
configuration
forktrue/fork
logLevelINFO/logLevel
runTargetcom.baesystems.grading.gwt/Main.html/runTarget
compileTargets
valuecom.baesystems.canes.grading.gwt.Main/value
/compileTargets
gwtVersion${gwtVersion}/gwtVersion
/configuration
executions
execution
goals
goalmergewebxml/goal
goalcompile/goal
/goals
/execution
/executions
/plugin
But there's no process fork going on. I also tried setting
jvmArg-Xmx1024m/jvmArg but that doesn't help either.
Has anyone come across this?
Thanks.
On Sep 27, 6:27 pm, Carlos Rafael Ramirez [EMAIL PROTECTED]
wrote:
Hi,
I am using jboss, eclipse and ant (not maven) to deploy my web
application
using GWT 1.5 and no problem at all. Check your html host page. A simple
check is trying to download the nocache file as is written in your
webpage.
If it can be found by the browser well at least your web application is
well configured.
Regards,
Carlos
On Sat, Sep 27, 2008 at 8:19 PM, Ronak Patel [EMAIL PROTECTED]
wrote:
Hi all,
I'm using Eclipse Maven to deploy a GWT 1.5 web application to
JBoss. When I run the application inside of the built in Application-
shell.cmd program, I see my web application inside of the Google
Browser Window.
However, when I build the war file using Maven and the GWT Archetype,
I am unable to visit the web application home page.
Maven runs and bundles the outputs of the Application-compile.cmd
file. This includes a WEB-INF complete with classes and lib folders
along with the nocache and cache html and js files.
Was anyone else ever able to deploy and view the outputs of a GWT
application successfully?- 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 [EMAIL PROTECTED]
For more options, visit this group at
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-~--~~~~--~~--~--~---
Using the hibernate4gwt?
Hello, anyone of you this Using the hibernate4gwt? it is worth? it really solves the problem with many such relationships to a list? --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
[gwt-contrib] Re: RR: SOYC Correlation work
On Thu, Oct 2, 2008 at 4:56 PM, Lex Spoon [EMAIL PROTECTED] wrote: 1. Is there any reason to store all correlates as strings? The I agree that the final API provided by the Correlation type should be more structured than just a String, but I don't think that it should hang on to the AST node. I was going to wait to expand the Correlation API until I talked to Katherin next week about what information would actually go into the visualizations, but I imagine that it would have String getters for package, type, and field. 2. Attaching a method to its overrider parent seems to mix two ... anyway, once runAsync is merged in. Given this, is there any further reason to have method override imply ancestry? It seems to dilute the information that SourceInfo ancestry can uniquely provide. Will the type oracle still be available during the Link phase of the compiler? If so, I'll remove all of the override information from SourceInfo. If the oracle won't be available, I'll add an overrides relationship to SourceInfo to clarify the meaning of ancestry. - Why are there synchronized methods in SourceInfo? In particular, why are some synchronized but not others? Reads and writes to mutable fields were made synchronous. In practice, with the current structure of the compiler, there's no reason to make them thread-safe. I'll remove the synchronization. - It would be really nice to have utility methods that find and return the primary and secondary correlates on a specified axis. If I understand correctly, a caller must currently search through the return value of getCorrelations or getDerivedCorrelations. Easy enough. -- Bob Vawter Google Web Toolkit Team --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] RR: making extracting and setting widget data easier
Hello every,
Just a little backgrounder for this RR. For some time now, a coworker
and I have been working on and off on a library/framework to simplify
creation of GWT applications, specifically those that cover most of
our use cases. For the most part, the applications we build involve
filling out rather large forms, retrieving data, generating reports,
etc. Building these large forms by hand is very tedious, so we created
an open source project called Mount Sinai Hospital Application Builder
(mshab) which you can find here: http://code.google.com/p/mshab/.
I started to overhaul the project to make it easier to use and easier
to extend. As I started the overhaul, I noticed that the incubator
started to get populated with a lot of similar widgets and libraries
that I was redeveloping. I contacted Emily Crutcher about the
Validation aspect and we ended up talking a bit about the incubator. I
decided that it'll be best to try to commit back to the incubator so
we could avoid having to throw away our code after the incubator
implemented the same ideas. I'll start making RRs about the various
parts that we were working on to get feedback and hopefully
incorporate it into the incubator.
Now, to the meat of the post. Right now, extracting data from widgets
is very different depending on the widget. From a TextBox, you call
textBox.getText(). For a ListBox you call
listBox.getValue(listBox.getSelectedItem()). Setting the data is
different too, and sometimes pretty complex (ListBox involves a
loop, etc). Therefore, I'm proposing a common interface that wraps
around core GWT widgets and provides one way to extract and set data
to widgets. There are a number of use cases where this can be applied.
Some good examples are validation and simple data binding.
The interface is a straight forward generic interface that works with
a generic widget and a generic data type (comments removed):
public interface DataManagerT, S {
public S getData(T widget);
public void setData(T widget, S data);
}
Here's an example of how it would be used to manage TextBoxBase
widgets.
public class TextBoxBaseDataManager implements
DataManagerTextBoxBase, String {
public String getData(TextBoxBase widget) {
return widget.getText();
}
public void setData(TextBoxBase widget, String data) {
widget.setText(data);
}
}
To help developers easily get the appropriate DataManager for a
specific widget, I created a DataManagerCollection interface where you
can get the specific DataManager for a given widget and then start
working with it. The developer can either use existing
DataManagerCollection implementations or wire their own.
public interface DataManagerCollection {
public boolean hasDataManager(Widget widget);
public DataManager?, ? getDataManager(Widget widget);
public void setDataManager(Widget widget, DataManager?, ?
dataManager);
}
We're currently working on creating wrappers for all the core GWT
widgets and the incubator ones. Feedback would be much appreciated.
Thank you for your time.
Best regards,
Arthur Kalmenson
--~--~-~--~~~---~--~~
http://groups.google.com/group/Google-Web-Toolkit-Contributors
-~--~~~~--~~--~--~---
[gwt-contrib] Re: RR: making extracting and setting widget data easier
Why wrappers? Why not have the widgets simply implement a HasData interface?
public interface HasDataT {
public T getData();
public void setData(T data);
}
Maybe I'm just not seeing your use case.
On Fri, Oct 3, 2008 at 10:55 AM, Arthur Kalmenson [EMAIL PROTECTED] wrote:
Hello every,
Just a little backgrounder for this RR. For some time now, a coworker
and I have been working on and off on a library/framework to simplify
creation of GWT applications, specifically those that cover most of
our use cases. For the most part, the applications we build involve
filling out rather large forms, retrieving data, generating reports,
etc. Building these large forms by hand is very tedious, so we created
an open source project called Mount Sinai Hospital Application Builder
(mshab) which you can find here: http://code.google.com/p/mshab/.
I started to overhaul the project to make it easier to use and easier
to extend. As I started the overhaul, I noticed that the incubator
started to get populated with a lot of similar widgets and libraries
that I was redeveloping. I contacted Emily Crutcher about the
Validation aspect and we ended up talking a bit about the incubator. I
decided that it'll be best to try to commit back to the incubator so
we could avoid having to throw away our code after the incubator
implemented the same ideas. I'll start making RRs about the various
parts that we were working on to get feedback and hopefully
incorporate it into the incubator.
Now, to the meat of the post. Right now, extracting data from widgets
is very different depending on the widget. From a TextBox, you call
textBox.getText(). For a ListBox you call
listBox.getValue(listBox.getSelectedItem()). Setting the data is
different too, and sometimes pretty complex (ListBox involves a
loop, etc). Therefore, I'm proposing a common interface that wraps
around core GWT widgets and provides one way to extract and set data
to widgets. There are a number of use cases where this can be applied.
Some good examples are validation and simple data binding.
The interface is a straight forward generic interface that works with
a generic widget and a generic data type (comments removed):
public interface DataManagerT, S {
public S getData(T widget);
public void setData(T widget, S data);
}
Here's an example of how it would be used to manage TextBoxBase
widgets.
public class TextBoxBaseDataManager implements
DataManagerTextBoxBase, String {
public String getData(TextBoxBase widget) {
return widget.getText();
}
public void setData(TextBoxBase widget, String data) {
widget.setText(data);
}
}
To help developers easily get the appropriate DataManager for a
specific widget, I created a DataManagerCollection interface where you
can get the specific DataManager for a given widget and then start
working with it. The developer can either use existing
DataManagerCollection implementations or wire their own.
public interface DataManagerCollection {
public boolean hasDataManager(Widget widget);
public DataManager?, ? getDataManager(Widget widget);
public void setDataManager(Widget widget, DataManager?, ?
dataManager);
}
We're currently working on creating wrappers for all the core GWT
widgets and the incubator ones. Feedback would be much appreciated.
Thank you for your time.
Best regards,
Arthur Kalmenson
--~--~-~--~~~---~--~~
http://groups.google.com/group/Google-Web-Toolkit-Contributors
-~--~~~~--~~--~--~---
[gwt-contrib] [google-web-toolkit commit] r3705 - changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl
Author: [EMAIL PROTECTED]
Date: Fri Oct 3 08:31:38 2008
New Revision: 3705
Modified:
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/FragmentLoaderCreator.java
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/ReplaceRunAsyncs.java
Log:
Renames AsyncLoadern.load to AsyncLoadern.runAsync, to more clearly
reflect what it does.
Modified:
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/FragmentLoaderCreator.java
==
---
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/FragmentLoaderCreator.java
(original)
+++
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/FragmentLoaderCreator.java
Fri Oct 3 08:31:38 2008
@@ -73,9 +73,9 @@
}
generateLoaderFields(loaderWriter);
-generateLoadMethod(loaderWriter);
generateOnErrorMethod(loaderWriter);
generateOnLoadMethod(loaderWriter);
+generateRunAsyncMethod(loaderWriter);
generateRunCallbacksMethod(loaderWriter);
generateRunCallbackOnFailuresMethod(loaderWriter);
@@ -112,13 +112,11 @@
}
/**
- * Generate the codeload/code method. Calls to
codeGWT.runAsync/code
+ * Generate the coderunAsync/code method. Calls to
codeGWT.runAsync/code
* are replaced by calls to this method.
- *
- * TODO(spoon): rename to runAsync
*/
- private void generateLoadMethod(PrintWriter srcWriter) {
-srcWriter.println(public static void load(RunAsyncCallback callback)
{);
+ private void generateRunAsyncMethod(PrintWriter srcWriter) {
+srcWriter.println(public static void runAsync(RunAsyncCallback
callback) {);
srcWriter.println(getCallbackListSimpleName() + newCallbackList =
new
+ getCallbackListSimpleName() + (););
srcWriter.println(newCallbackList.callback = callback;);
Modified:
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/ReplaceRunAsyncs.java
==
---
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/ReplaceRunAsyncs.java
(original)
+++
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/ReplaceRunAsyncs.java
Fri Oct 3 08:31:38 2008
@@ -45,7 +45,7 @@
+ in method + currentMethod);
JClassType rebound = getFragmentLoader(islandNumber);
-JMethod loadMethod = getLoadMethod(rebound);
+JMethod loadMethod = getRunAsyncMethod(rebound);
assert loadMethod != null;
JMethodCall methodCall = new JMethodCall(program,
x.getSourceInfo(),
@@ -94,11 +94,11 @@
return (JClassType) result;
}
- private JMethod getLoadMethod(JClassType loaderType) {
+ private JMethod getRunAsyncMethod(JClassType loaderType) {
assert loaderType != null;
assert loaderType.methods != null;
for (JMethod method : loaderType.methods) {
- if (method.getName().equals(load)) {
+ if (method.getName().equals(runAsync)) {
assert (method.isStatic());
assert (method.params.size() == 1);
assert
(method.params.get(0).getType().getName().equals(FragmentLoaderCreator.RUN_ASYNC_CALLBACK));
--~--~-~--~~~---~--~~
http://groups.google.com/group/Google-Web-Toolkit-Contributors
-~--~~~~--~~--~--~---
[gwt-contrib] [google-web-toolkit commit] r3706 - changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl
Author: [EMAIL PROTECTED]
Date: Fri Oct 3 08:32:40 2008
New Revision: 3706
Modified:
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/FragmentLoaderCreator.java
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/ReplaceRunAsyncs.java
Log:
Sort and format.
Modified:
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/FragmentLoaderCreator.java
==
---
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/FragmentLoaderCreator.java
(original)
+++
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/FragmentLoaderCreator.java
Fri Oct 3 08:32:40 2008
@@ -38,11 +38,11 @@
* handled by TypeTightener and LivenessAnalyzer.
*/
public class FragmentLoaderCreator {
- private static final String PROP_RUN_ASYNC_NEVER_RUNS
= gwt.jjs.runAsyncNeverRuns;
+ public static final String ASYNC_FRAGMENT_LOADER
= com.google.gwt.core.client.AsyncFragmentLoader;
public static final String ASYNC_LOADER_CLASS_PREFIX = AsyncLoader;
public static final String ASYNC_LOADER_PACKAGE
= com.google.gwt.lang.asyncloaders;
- public static final String ASYNC_FRAGMENT_LOADER
= com.google.gwt.core.client.AsyncFragmentLoader;
public static final String RUN_ASYNC_CALLBACK
= com.google.gwt.core.client.RunAsyncCallback;
+ private static final String PROP_RUN_ASYNC_NEVER_RUNS
= gwt.jjs.runAsyncNeverRuns;
private final ArtifactSet artifactSet;
private final CompilationState compilationState;
@@ -111,28 +111,6 @@
+ callbacks = null;);
}
- /**
- * Generate the coderunAsync/code method. Calls to
codeGWT.runAsync/code
- * are replaced by calls to this method.
- */
- private void generateRunAsyncMethod(PrintWriter srcWriter) {
-srcWriter.println(public static void runAsync(RunAsyncCallback
callback) {);
-srcWriter.println(getCallbackListSimpleName() + newCallbackList =
new
-+ getCallbackListSimpleName() + (););
-srcWriter.println(newCallbackList.callback = callback;);
-srcWriter.println(newCallbackList.next = callbacks;);
-srcWriter.println(callbacks = newCallbackList;);
-srcWriter.println(if (loaded) {);
-srcWriter.println(instance.runCallbacks(););
-srcWriter.println(return;);
-srcWriter.println(});
-srcWriter.println(if (!loading) {);
-srcWriter.println(loading = true;);
-srcWriter.println(AsyncFragmentLoader.inject( + entryNumber + ););
-srcWriter.println(});
-srcWriter.println(});
- }
-
private void generateOnErrorMethod(PrintWriter srcWriter) {
srcWriter.println(public static void onError(Throwable e) {);
srcWriter.println(loading = false;);
@@ -151,6 +129,28 @@
srcWriter.println(instance.runCallbacks(););
srcWriter.println(ASYNC_FRAGMENT_LOADER
+ .logEventProgress(\runCallbacks + entryNumber + \,
\end\););
+srcWriter.println(});
+ }
+
+ /**
+ * Generate the coderunAsync/code method. Calls to
+ * codeGWT.runAsync/code are replaced by calls to this method.
+ */
+ private void generateRunAsyncMethod(PrintWriter srcWriter) {
+srcWriter.println(public static void runAsync(RunAsyncCallback
callback) {);
+srcWriter.println(getCallbackListSimpleName() + newCallbackList =
new
++ getCallbackListSimpleName() + (););
+srcWriter.println(newCallbackList.callback = callback;);
+srcWriter.println(newCallbackList.next = callbacks;);
+srcWriter.println(callbacks = newCallbackList;);
+srcWriter.println(if (loaded) {);
+srcWriter.println(instance.runCallbacks(););
+srcWriter.println(return;);
+srcWriter.println(});
+srcWriter.println(if (!loading) {);
+srcWriter.println(loading = true;);
+srcWriter.println(AsyncFragmentLoader.inject( + entryNumber + ););
+srcWriter.println(});
srcWriter.println(});
}
Modified:
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/ReplaceRunAsyncs.java
==
---
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/ReplaceRunAsyncs.java
(original)
+++
changes/spoon/runAsync/dev/core/src/com/google/gwt/dev/jjs/impl/ReplaceRunAsyncs.java
Fri Oct 3 08:32:40 2008
@@ -30,8 +30,8 @@
*/
public class ReplaceRunAsyncs {
private class AsyncCreateVisitor extends JModVisitor {
-private int entryCount = 1;
private JMethod currentMethod;
+private int entryCount = 1;
@Override
public void endVisit(JMethodCall x, Context ctx) {
@@ -94,31 +94,31 @@
return (JClassType) result;
}
- private JMethod getRunAsyncMethod(JClassType loaderType) {
+ private JMethod getOnLoadMethod(JClassType loaderType) {
assert loaderType != null;
assert loaderType.methods != null;
for (JMethod method : loaderType.methods) {
- if
[gwt-contrib] Re: RR: making extracting and setting widget data easier
On Fri, Oct 3, 2008 at 12:07 PM, Ray Ryan [EMAIL PROTECTED] wrote: I'm with Isaac. I think the case for teaching our Widgets to implement HasDataT is really clear cut (especially if they also accept DataChange listeners). The DataManager is a bit harder to justify, and anyway trivial for folks to implement on their own. I'm not with Isaac. My first experience working with data binding was as a co-op student working on the UI team on the Eclipse project at OTI. That was a very educational co-op term! Eclipse, at least in version 2--I've lost track since then, has a very clear separation between SWT, the widget kit, and JFace, the data binding library that sits on top of SWT. In my mind, a Widget has a specific job to do--get displayed in an application and, when appropriate, react to user manipulation. Teaching basic widgets to know about data is a bad idea, IMO, because it makes basic widgets too complicated. It also puts a lot of pressure on programmers to use the data binding model that's baked into the widgets, even if that model doesn't really suit a given application. In fact, I think Isaac's comments may be an example of this--he's built himself a model for doing data binding and, at first blush, it looks like it doesn't match with Arthur's. It also seems like neither Arthur's nor Isaac's model fits with the model that I built and am frantically documenting in preparation for releasing here. If any of our models is chosen as The GWT Way and baked into the basic widgets, the others are probably out of luck. Instead, I think a data binding library should be built on top of a widget library for two main reasons: you can switch data binding libraries more easily and, perhaps more importantly, you don't have to use any data binding library at all. Ian --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] Re: RR: making extracting and setting widget data easier
I think you're reading too much into the word data. All I'm after is a uniform way to find out what value a widget is showing, without my controller having to know specifically what widget it is. I think that can be done in a minimalist, low level way that doesn't conflict with various data binding approaches. Suppose that you could already rely on TextField implements HasValueString, CheckBox implements HasValueBoolean. How would that interfere with the work you're doing now? Might it simplify it any? rjrjr On Fri, Oct 3, 2008 at 9:27 AM, Ian Petersen [EMAIL PROTECTED] wrote: On Fri, Oct 3, 2008 at 12:07 PM, Ray Ryan [EMAIL PROTECTED] wrote: I'm with Isaac. I think the case for teaching our Widgets to implement HasDataT is really clear cut (especially if they also accept DataChange listeners). The DataManager is a bit harder to justify, and anyway trivial for folks to implement on their own. I'm not with Isaac. My first experience working with data binding was as a co-op student working on the UI team on the Eclipse project at OTI. That was a very educational co-op term! Eclipse, at least in version 2--I've lost track since then, has a very clear separation between SWT, the widget kit, and JFace, the data binding library that sits on top of SWT. In my mind, a Widget has a specific job to do--get displayed in an application and, when appropriate, react to user manipulation. Teaching basic widgets to know about data is a bad idea, IMO, because it makes basic widgets too complicated. It also puts a lot of pressure on programmers to use the data binding model that's baked into the widgets, even if that model doesn't really suit a given application. In fact, I think Isaac's comments may be an example of this--he's built himself a model for doing data binding and, at first blush, it looks like it doesn't match with Arthur's. It also seems like neither Arthur's nor Isaac's model fits with the model that I built and am frantically documenting in preparation for releasing here. If any of our models is chosen as The GWT Way and baked into the basic widgets, the others are probably out of luck. Instead, I think a data binding library should be built on top of a widget library for two main reasons: you can switch data binding libraries more easily and, perhaps more importantly, you don't have to use any data binding library at all. Ian --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] Re: RR: making extracting and setting widget data easier
I was thinking of a slightly more complex use case where you might have full
model objects.
public class ListBoxModel implements HasValueListItem{
...
}
public class ListBoxDataManager implements DataManagerListBox,
ListBoxModel{
...
}
public class MyListBox extends Composite implements HasValueListItem{
private ListBox wrappedWidget = new ListBox();
private ListBoxModel model =
ListBoxDataManager().getCurrentManager().get(this);
ListItem getValue() {
model.getValue();
}
}
public void setData(ListBox widget, String data) {
// go through the list of
for (int i = 0; i widget.getItemCount(); i++) {
if (widget.getValue(i).equals(data)) {
widget.setSelectedIndex(i);
break;
}
}
}
}
On Fri, Oct 3, 2008 at 11:59 AM, Arthur Kalmenson [EMAIL PROTECTED]wrote:
Why wrappers? Why not have the widgets simply implement a HasData
interface?
As Emily pointed out, this helps separate presentation logic from the
data model. Furthermore, there are cases when you want to get data out
of the same widget in different ways. A good example is a DataManager
for ListBoxes. A simple implementation would look something like this:
public class ListBoxDataManager implements DataManagerListBox,
String {
public String getData(ListBox widget) {
String result = null;
if (widget.getSelectedIndex() -1) {
result = widget.getValue(widget.getSelectedIndex());
}
return result;
}
public void setData(ListBox widget, String data) {
// go through the list of
for (int i = 0; i widget.getItemCount(); i++) {
if (widget.getValue(i).equals(data)) {
widget.setSelectedIndex(i);
break;
}
}
}
}
However, if you're working with a lot of ListBoxes that have a default
value set at index 0, you might create a different DataManager to
handle that particular use case and return null if the first index is
selected.
The same widgets might be used to get/set different data types and it
separates the presentation logic from the data model, so separating the
two
seems to make some sense. On the other hand, it means that there is no
simple interface that can be used when you actually do have data model
objects:
So what if we combined the two:
public interface HasDataT {
public T getData();
public void setData(T data);
}
then:
public interface DataManagerT, S extends HasData {
public HasData getData(T widget);
public void setData(T widget, S data);
That's a good point but I'm not sure I really understand the sample
code. Is the idea that if I have a data model Widget, it would
implement the HasData interface? It seems that S would end up being
the same as T in the generic implementation. I'll try to implement
this to get an idea what you mean.
Best regards,
Arthur Kalmenson
On Oct 3, 11:25 am, Emily Crutcher [EMAIL PROTECTED] wrote:
Having worked on similar projects, I am very enthusiastic about the idea
of
creating a full gwt forms module, as apart from it being a true pain in
the
neck to create them by hand, improving the overall quality of such forms
will, in the long term, save lives, so I'm looking forward to this work.
---
The same widgets might be used to get/set different data types and it
separates the presentation logic from the data model, so separating the
two
seems to make some sense. On the other hand, it means that there is no
simple interface that can be used when you actually do have data model
objects:
So what if we combined the two:
public interface HasDataT {
public T getData();
public void setData(T data);
}
then:
public interface DataManagerT, S extends HasData {
public HasData getData(T widget);
public void setData(T widget, S data);
}
On Fri, Oct 3, 2008 at 11:06 AM, Isaac Truett [EMAIL PROTECTED] wrote:
Why wrappers? Why not have the widgets simply implement a HasData
interface?
public interface HasDataT {
public T getData();
public void setData(T data);
}
Maybe I'm just not seeing your use case.
On Fri, Oct 3, 2008 at 10:55 AM, Arthur Kalmenson
[EMAIL PROTECTED]
wrote:
Hello every,
Just a little backgrounder for this RR. For some time now, a coworker
and I have been working on and off on a library/framework to simplify
creation of GWT applications, specifically those that cover most of
our use cases. For the most part, the applications we build involve
filling out
[gwt-contrib] Re: RR: making extracting and setting widget data easier
I agree with Ian about the benefits of having data binding libraries independent of the GWT widget library. I'm not trying to push my own data binding scheme. My proposal of a HasData interface was to address this point from Arthur's original post: Right now, extracting data from widgets is very different depending on the widget. Most of the Widgets could implement HasDataString and solve this problem (See Ray's post while I was writing this). DataManagers and complex but separated Model/View schemes could be based on that. HasData is a tool for normalizing APIs which would make building data binding, validation, and other libraries easier. On Fri, Oct 3, 2008 at 12:27 PM, Ian Petersen [EMAIL PROTECTED] wrote: On Fri, Oct 3, 2008 at 12:07 PM, Ray Ryan [EMAIL PROTECTED] wrote: I'm with Isaac. I think the case for teaching our Widgets to implement HasDataT is really clear cut (especially if they also accept DataChange listeners). The DataManager is a bit harder to justify, and anyway trivial for folks to implement on their own. I'm not with Isaac. My first experience working with data binding was as a co-op student working on the UI team on the Eclipse project at OTI. That was a very educational co-op term! Eclipse, at least in version 2--I've lost track since then, has a very clear separation between SWT, the widget kit, and JFace, the data binding library that sits on top of SWT. In my mind, a Widget has a specific job to do--get displayed in an application and, when appropriate, react to user manipulation. Teaching basic widgets to know about data is a bad idea, IMO, because it makes basic widgets too complicated. It also puts a lot of pressure on programmers to use the data binding model that's baked into the widgets, even if that model doesn't really suit a given application. In fact, I think Isaac's comments may be an example of this--he's built himself a model for doing data binding and, at first blush, it looks like it doesn't match with Arthur's. It also seems like neither Arthur's nor Isaac's model fits with the model that I built and am frantically documenting in preparation for releasing here. If any of our models is chosen as The GWT Way and baked into the basic widgets, the others are probably out of luck. Instead, I think a data binding library should be built on top of a widget library for two main reasons: you can switch data binding libraries more easily and, perhaps more importantly, you don't have to use any data binding library at all. Ian --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] Re: RR: making extracting and setting widget data easier
Isaac has also replied while I'm writing this. I now see that Isaac's
and Ray's suggestions are not as all-encompassing as I originally
interpreted them. I'm just stepping out for lunch now, though, so I
don't really have time to think about this properly or reply with the
thoughtfulness that's due. Maybe after lunch I'll extend what
follows.
On Fri, Oct 3, 2008 at 12:38 PM, Ray Ryan [EMAIL PROTECTED] wrote:
I think you're reading too much into the word data.
That might be true
Suppose that you could already rely on TextField implements
HasValueString, CheckBox implements HasValueBoolean. How would that
interfere with the work you're doing now? Might it simplify it any?
Perhaps. What would ListBox implement? HasDataString or
HasDataListString (ie. do we assume single-select or
multi-select)? Would Label implement HasDataString? Does
HasDataT imply SourcesChangeEvents (or the gen2 equivalent)? Would
it be useful to do something like the following? (I've done
essentially this in my library)
public interface DisplaysDataT {
void setData(T data);
}
public interface HasDataT extends DisplaysDataT {
T getData();
}
Maybe Label would implement DisplaysDataString while TextBox would
implement HasDataString. DisplaysDataT wouldn't imply
SourcesChangeEvents but HasDataT might.
Ian
--~--~-~--~~~---~--~~
http://groups.google.com/group/Google-Web-Toolkit-Contributors
-~--~~~~--~~--~--~---
[gwt-contrib] Re: RR: making extracting and setting widget data easier
Perhaps. What would ListBox implement? HasDataString or
HasDataListString (ie. do we assume single-select or
multi-select)?
/**
* Gets the currently-selected item. If multiple items are selected, this
* method will return the first selected item ([EMAIL PROTECTED]
#isItemSelected(int)}
* can be used to query individual items).
*
* @return the selected index, or code-1/code if none is selected
*/
public int getSelectedIndex() {
return getSelectElement().getSelectedIndex();
}
To me, this indicates an existing single-select bias. On that basis, I
would say that ListBox implements HasValueString. Or...
interface HasValueT {
T getValue();
void setValue(T value);
}
interface HasValuesCollectionsT extends HasValueT {
CollectionT getValues();
void setValues(CollectionT values);
}
I'm shooting from the hip there, but at first glance it makes sense.
Then ListBox implements HasValuesString and you get singular methods
which return the first selected item or set the only selected
(removing any other selections) item. The plural methods obviously get
and set all selected items.
Would Label implement HasDataString?
Yes. HasDataString would essentially replace HasText, wouldn't it?
On Fri, Oct 3, 2008 at 12:52 PM, Ian Petersen [EMAIL PROTECTED] wrote:
Isaac has also replied while I'm writing this. I now see that Isaac's
and Ray's suggestions are not as all-encompassing as I originally
interpreted them. I'm just stepping out for lunch now, though, so I
don't really have time to think about this properly or reply with the
thoughtfulness that's due. Maybe after lunch I'll extend what
follows.
On Fri, Oct 3, 2008 at 12:38 PM, Ray Ryan [EMAIL PROTECTED] wrote:
I think you're reading too much into the word data.
That might be true
Suppose that you could already rely on TextField implements
HasValueString, CheckBox implements HasValueBoolean. How would that
interfere with the work you're doing now? Might it simplify it any?
Perhaps. What would ListBox implement? HasDataString or
HasDataListString (ie. do we assume single-select or
multi-select)? Would Label implement HasDataString? Does
HasDataT imply SourcesChangeEvents (or the gen2 equivalent)? Would
it be useful to do something like the following? (I've done
essentially this in my library)
public interface DisplaysDataT {
void setData(T data);
}
public interface HasDataT extends DisplaysDataT {
T getData();
}
Maybe Label would implement DisplaysDataString while TextBox would
implement HasDataString. DisplaysDataT wouldn't imply
SourcesChangeEvents but HasDataT might.
Ian
--~--~-~--~~~---~--~~
http://groups.google.com/group/Google-Web-Toolkit-Contributors
-~--~~~~--~~--~--~---
[gwt-contrib] Re: RR: making extracting and setting widget data easier
I think this basic idea makes sense, though I might argue that we might want
to create a DropDownListBox and a MultiSelectListBox and deprecate list
box, as the API for ListBox is hard to normalize this way.
However, at the same time, a more complex data binding API seems like it
could be very useful as well. Maybe the trick is we should treat the two
discusions seperately.
a) Create a HasValueT, potencially extending a HasReadOnlyValueT
interface which is used even for base ui widgets. This one might make into
1.6 even.
b) Create a data binding framework that binds widgets to more complex
data. It will probably not be ready for several months and should be very
flexible.
On Fri, Oct 3, 2008 at 1:09 PM, Isaac Truett [EMAIL PROTECTED] wrote:
Perhaps. What would ListBox implement? HasDataString or
HasDataListString (ie. do we assume single-select or
multi-select)?
/**
* Gets the currently-selected item. If multiple items are selected, this
* method will return the first selected item ([EMAIL PROTECTED]
#isItemSelected(int)}
* can be used to query individual items).
*
* @return the selected index, or code-1/code if none is selected
*/
public int getSelectedIndex() {
return getSelectElement().getSelectedIndex();
}
To me, this indicates an existing single-select bias. On that basis, I
would say that ListBox implements HasValueString. Or...
interface HasValueT {
T getValue();
void setValue(T value);
}
interface HasValuesCollectionsT extends HasValueT {
CollectionT getValues();
void setValues(CollectionT values);
}
I'm shooting from the hip there, but at first glance it makes sense.
Then ListBox implements HasValuesString and you get singular methods
which return the first selected item or set the only selected
(removing any other selections) item. The plural methods obviously get
and set all selected items.
Would Label implement HasDataString?
Yes. HasDataString would essentially replace HasText, wouldn't it?
On Fri, Oct 3, 2008 at 12:52 PM, Ian Petersen [EMAIL PROTECTED] wrote:
Isaac has also replied while I'm writing this. I now see that Isaac's
and Ray's suggestions are not as all-encompassing as I originally
interpreted them. I'm just stepping out for lunch now, though, so I
don't really have time to think about this properly or reply with the
thoughtfulness that's due. Maybe after lunch I'll extend what
follows.
On Fri, Oct 3, 2008 at 12:38 PM, Ray Ryan [EMAIL PROTECTED] wrote:
I think you're reading too much into the word data.
That might be true
Suppose that you could already rely on TextField implements
HasValueString, CheckBox implements HasValueBoolean. How would that
interfere with the work you're doing now? Might it simplify it any?
Perhaps. What would ListBox implement? HasDataString or
HasDataListString (ie. do we assume single-select or
multi-select)? Would Label implement HasDataString? Does
HasDataT imply SourcesChangeEvents (or the gen2 equivalent)? Would
it be useful to do something like the following? (I've done
essentially this in my library)
public interface DisplaysDataT {
void setData(T data);
}
public interface HasDataT extends DisplaysDataT {
T getData();
}
Maybe Label would implement DisplaysDataString while TextBox would
implement HasDataString. DisplaysDataT wouldn't imply
SourcesChangeEvents but HasDataT might.
Ian
--
There are only 10 types of people in the world: Those who understand
binary, and those who don't
--~--~-~--~~~---~--~~
http://groups.google.com/group/Google-Web-Toolkit-Contributors
-~--~~~~--~~--~--~---
[gwt-contrib] Re: RR: making extracting and setting widget data easier
If you buy my argument that HasDataT needs to imply SourcesDataChangeEventsT, then I think it follows that Label should not implement HasDataT. Something like HasReadOnlyDataT (like Emily suggested) would be necessary to bridge the gap between editors and viewers. I agree 100%, the hasText interface is very confusing. Sometimes it's used to represent text set by users (TextBox) as well as text set by the application (Label). I think that a HasDataT and HasReadOnlyDataT is a great idea. Implementing some SourcesDataChangeEventsT interface will make it easier to do validation and help make efficient data binding where the target bean will only receive changed widgets. On a completely different note, I just noticed that RadioButton inherits from CheckBox. Does it make sense for RadioButton to implement HasDataBoolean? To me, a collection of RadioButtons is roughly equivalent to a single-select ListBox and, as such, RadioButton implementing HasDataBoolean is somewhat nonsensical, whereas a collection of RadioButtons should probably implement HasDataString, or something similar. I agree, it should be HasDataString, but I think that RadioButton should not be a single entity that's linked by a String group name (at least not from the GWT side, I understand the JS side has to be like that). I think that RadioButton should be RadioButtons and should act more like ListBox where you can add additional choices. The current RadioButton implementation is pretty low level and is rather close to the way it's done in Javascript. Regards, Arthur Kalmenson On Oct 3, 2:33 pm, Ian Petersen [EMAIL PROTECTED] wrote: On Fri, Oct 3, 2008 at 1:09 PM, Isaac Truett [EMAIL PROTECTED] wrote: Would Label implement HasDataString? Yes. HasDataString would essentially replace HasText, wouldn't it? (As an aside, if HasDataString replaces HasText, perhaps HasText should be redefined to extend HasDataString.) Ray talked about creating a uniform way to find out what value a widget is showing and Isaac described HasDataT as a tool for normalizing API. I think those are key ideas. As such, I think we need to go one step further. HasDataT should imply SourcesChangeEvents, or maybe SourcesDataChangeEventsT. A TextBox certainly HasDataString, but I think it's equally important that the user can change the data in the text box. Any data binding library is going to have to listen for updates from the widgets that are capable of editing a value, and I think normalizing the notification of those changes is at least as useful as normalizing the display of values. In particular, I think CheckBox would benefit from SourcesDataChangeEventsBoolean. If you buy my argument that HasDataT needs to imply SourcesDataChangeEventsT, then I think it follows that Label should not implement HasDataT. Something like HasReadOnlyDataT (like Emily suggested) would be necessary to bridge the gap between editors and viewers. On a completely different note, I just noticed that RadioButton inherits from CheckBox. Does it make sense for RadioButton to implement HasDataBoolean? To me, a collection of RadioButtons is roughly equivalent to a single-select ListBox and, as such, RadioButton implementing HasDataBoolean is somewhat nonsensical, whereas a collection of RadioButtons should probably implement HasDataString, or something similar. Ian --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] Re: RR: making extracting and setting widget data easier
On Fri, Oct 3, 2008 at 1:09 PM, Isaac Truett [EMAIL PROTECTED] wrote: Would Label implement HasDataString? Yes. HasDataString would essentially replace HasText, wouldn't it? (As an aside, if HasDataString replaces HasText, perhaps HasText should be redefined to extend HasDataString.) Ray talked about creating a uniform way to find out what value a widget is showing and Isaac described HasDataT as a tool for normalizing API. I think those are key ideas. As such, I think we need to go one step further. HasDataT should imply SourcesChangeEvents, or maybe SourcesDataChangeEventsT. A TextBox certainly HasDataString, but I think it's equally important that the user can change the data in the text box. Any data binding library is going to have to listen for updates from the widgets that are capable of editing a value, and I think normalizing the notification of those changes is at least as useful as normalizing the display of values. In particular, I think CheckBox would benefit from SourcesDataChangeEventsBoolean. If you buy my argument that HasDataT needs to imply SourcesDataChangeEventsT, then I think it follows that Label should not implement HasDataT. Something like HasReadOnlyDataT (like Emily suggested) would be necessary to bridge the gap between editors and viewers. On a completely different note, I just noticed that RadioButton inherits from CheckBox. Does it make sense for RadioButton to implement HasDataBoolean? To me, a collection of RadioButtons is roughly equivalent to a single-select ListBox and, as such, RadioButton implementing HasDataBoolean is somewhat nonsensical, whereas a collection of RadioButtons should probably implement HasDataString, or something similar. Ian --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] [google-web-toolkit commit] r3704 - trunk/user/src/com/google/gwt/dom/client
Author: [EMAIL PROTECTED]
Date: Fri Oct 3 06:51:42 2008
New Revision: 3704
Modified:
trunk/user/src/com/google/gwt/dom/client/DOMImplMozillaOld.java
Log:
Using fall back text content for old Mozilla.
Desk check by jgw.
Modified: trunk/user/src/com/google/gwt/dom/client/DOMImplMozillaOld.java
==
--- trunk/user/src/com/google/gwt/dom/client/DOMImplMozillaOld.java
(original)
+++ trunk/user/src/com/google/gwt/dom/client/DOMImplMozillaOld.java Fri
Oct 3 06:51:42 2008
@@ -63,4 +63,34 @@
return top +
@com.google.gwt.user.client.impl.DocumentRootImpl::documentRoot.scrollTop;
}-*/;
+
+ @Override
+ public native String getInnerText(Element node) /*-{
+// To mimic IE's 'innerText' property in the W3C DOM, we need to
recursively
+// concatenate all child text nodes (depth first).
+var text = '', child = node.firstChild;
+while (child) {
+ // 1 == Element node
+ if (child.nodeType == 1) {
+text +=
[EMAIL PROTECTED]::getInnerText(Lcom/google/gwt/dom/client/Element;)(child);
+ } else if (child.nodeValue) {
+text += child.nodeValue;
+ }
+ child = child.nextSibling;
+}
+return text;
+ }-*/;
+
+ @Override
+ public native void setInnerText(Element elem, String text) /*-{
+// Remove all children first.
+while (elem.firstChild) {
+ elem.removeChild(elem.firstChild);
+}
+// Add a new text node.
+if (text != null) {
+ elem.appendChild($doc.createTextNode(text));
+}
+ }-*/;
+
}
--~--~-~--~~~---~--~~
http://groups.google.com/group/Google-Web-Toolkit-Contributors
-~--~~~~--~~--~--~---
[gwt-contrib] Re: data binding framework for GWT
On Fri, Oct 3, 2008 at 5:12 PM, Ian Petersen [EMAIL PROTECTED] wrote: I just realized I should work up an example project that uses the library. I'll get to that and post it shortly. I've started a pretty thorough example, but the office is closing and I don't have a key so I have leave now. I'll probably post something tonight, or maybe tomorrow. Ian --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
[gwt-contrib] [google-web-toolkit commit] r3708 - trunk/dev/core/src/com/google/gwt/dev/jdt
Author: [EMAIL PROTECTED]
Date: Fri Oct 3 17:26:30 2008
New Revision: 3708
Modified:
trunk/dev/core/src/com/google/gwt/dev/jdt/WebModeCompilerFrontEnd.java
Log:
This is a better way to find the appropriate no arg constructor; in some
circumstances the original code would erroneously return a superclass
constructor.
Review by: spoon (TBR)
Modified:
trunk/dev/core/src/com/google/gwt/dev/jdt/WebModeCompilerFrontEnd.java
==
--- trunk/dev/core/src/com/google/gwt/dev/jdt/WebModeCompilerFrontEnd.java
(original)
+++ trunk/dev/core/src/com/google/gwt/dev/jdt/WebModeCompilerFrontEnd.java
Fri Oct 3 17:26:30 2008
@@ -165,9 +165,7 @@
continue;
}
// Look for a noArg ctor.
- MethodBinding noArgCtor =
type.getExactMethod(init.toCharArray(),
- TypeBinding.NO_PARAMETERS, cud.scope);
-
+ MethodBinding noArgCtor =
type.getExactConstructor(TypeBinding.NO_PARAMETERS);
if (noArgCtor == null) {
FindDeferredBindingSitesVisitor.reportRebindProblem(site,
Rebind result ' + typeName
--~--~-~--~~~---~--~~
http://groups.google.com/group/Google-Web-Toolkit-Contributors
-~--~~~~--~~--~--~---
[gwt-contrib] Re: Patch: Build File Fix
The format for gwt.svnrev is [EMAIL PROTECTED], and if a real answer can't be determined it's set to [EMAIL PROTECTED], so I'd rather keep that pattern consistent instead of the 0 here. As a bigger change, though, I'd actually suggest pushing the test for .svn into SvnInfo.java; that already handles error conditions like the svn or svnversion binaries not being available, so it's a reasonable fit to check for workspace configuration there, and it makes the build file itself cleaner. General concept is fine, of course, but can we make those changes? On Fri, Oct 3, 2008 at 8:28 PM, Scott Blum [EMAIL PROTECTED] wrote: Freeland, it's all you. :) On Fri, Oct 3, 2008 at 8:23 PM, Mike Aizatsky [EMAIL PROTECTED]wrote: Hi! I've fixed build file to support working in non-svn workdir (e.g. git :). Can you please get this in? -- Regards, Mike --~--~-~--~~~---~--~~ http://groups.google.com/group/Google-Web-Toolkit-Contributors -~--~~~~--~~--~--~---
