date:20160325

Re: jsinterop

2016-03-25 Thread Eric Nissan

Thank You.  I forgot about that doc you had written.  Helped me tons!

On Wednesday, March 16, 2016 at 11:26:07 AM UTC-4, Goktug Gokdogan wrote:
>
>
>
> On Fri, Mar 4, 2016 at 5:18 AM, Eric Nissan  > wrote:
>
>> I tried that also, but
>>
>> Data[] thing = JsonUtils.safeEval(response.getText()).cast();
>>
>> does not compile as Data[] is not a JavaScriptObject
>>
>
> Data[] thing =  (Data[])(Object) JsonUtils.safeEval(response.getText());
>
> should work. Also if you choose do define your own Json.parse accessor 
> ,
>  
> you won't need the cast:
>
> @JsMethod(namespace="JSON")
> private static native  T parse(String text);
>  
>
>>
>>
>> On Friday, March 4, 2016 at 2:02:34 AM UTC-5, Ümit Seren wrote:
>>>
>>> I think you you have to use a normal array: Data[] 
>>>
>>> Eric Nissan  schrieb am Fr., 4. März 2016, 04:35:
>>>
 Thanks a ton!  that worked.
 followup, how do I set a List?
 I tried to use JsArray but that requires a JavaScriptObject, which Data 
 is not.

 Thanks,
 Eric

 On Wednesday, March 2, 2016 at 9:36:43 AM UTC-5, Ümit Seren wrote:
>
> This works: 
>
> {'somecollection':['String1','String2'],'somestring':'text'}
>
> @JsType(isNative = true,namespace = JsPackage.GLOBAL,name="Object")public 
> interface Data {
> @JsProperty
> String[] getSomecollection();
> @JsProperty
> String getSomestring();
> }
>
> Data data = JsonUtils.safeEval(json).cast();
>
> On Tuesday, March 1, 2016 at 9:03:03 PM UTC+1, Eric Nissan wrote:
>
> sorry if this has been answered, I just started using jsinterop in gwt 
>> 2.8.  What is the recommended way populate data into a jsinterop 
>> javascript 
>> object from my server.  Assuming I have Json, do we still use 
>> OverlayTypes? 
>>  or is there a better way to do it?
>>
>> Always appreciative,
>> Eric
>>
> 
>
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SL 1.7 out

2016-03-25 Thread George Georgovassilis

SL 1.7 is out. This is a maintenance release which updates dependencies to 
GWT 2.7.0 and Spring 4.2.5 

Repo: https://github.com/ggeorgovassilis/gwt-sl
User group: https://groups.google.com/forum/#!forum/gwt-sl

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Re: XML Parsing error with Chrome in Windows 10 ? :(

2016-03-25 Thread Ed

I just noticed I made a stupid mistake in the above post (mixing 2 issues 
:(.
I talk about Chrome, but that should be removed. I am not sure which 
browser is actually used, I just know the user agent that are unable to 
parse the xml correctly.
If you have any idea please let me know.
I use the xml header " in the xml 
files, so that should be fine. It seems like a modern IE browser, so I 
would expect it to be able to correctly load and parse the xml,.
- Ed

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Re: GWT 2.8 snapshot + GQuery snapshot : [ERROR] Errors in 'com/google/gwt/query/client/GQuery.java'

2016-03-25 Thread maticpetek

As always, Thomas thank you for this. I build Arcbees version and get 
gwtquery-1.5-SNAPSHOT.jar and it works.
Regards,
  Matic


On Friday, March 25, 2016 at 11:34:44 AM UTC+1, Thomas Broyer wrote:
>
> BTW, it looks like GQuery is actually developed at 
> https://github.com/ArcBees/gwtquery, https://github.com/gwtquery/gwtquery 
> hasn't been updated for more than a year now.
>
> On Friday, March 25, 2016 at 11:31:19 AM UTC+1, Thomas Broyer wrote:
>>
>> AIUI, it could be a type-inference glitch (line 226 is "return 
>> $(f.getElement())" and Function#getElement is a generic method) due to the 
>> update of JDT/ECJ.
>> Changing that line to "return $(f.getElement())" might fix it.
>>
>> On Friday, March 25, 2016 at 10:14:58 AM UTC+1, maticpetek wrote:
>>>
>>> Hi,
>>>   I have small GWT project that has use GWT 2.8 snapshot a couple of 
>>> months old. Now I try update to GWT 2.8 snapshot build 25.3.2016. I replace 
>>> all JAR files and build new GQuery from 
>>> https://github.com/gwtquery/gwtquery. When I run SDM I get a lot of 
>>> warnings :
>>>
>>> [java] Rebinding 
>>> com.google.gwt.useragent.client.UserAgentAsserter
>>>
>>>  [java]Checking rule >> class='com.google.gwt.query.client.plugins.effects.TransitionsAnimation.TransitionsClipAnimation'/>
>>>
>>>  [java]   [WARN] Unknown type 
>>> 'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
>>> deferred binding rule
>>>
>>>  [java]Checking rule >> class='com.google.gwt.query.client.plugins.effects.ClipAnimation'/>
>>>
>>>  [java]   [WARN] Unknown type 
>>> 'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
>>> deferred binding rule
>>>
>>>  [java]Checking rule >> class='com.google.gwt.editor.rebind.SimpleBeanEditorDriverGenerator'/>
>>>
>>>  [java]   [WARN] Detected warnings related to 
>>> 'com.google.gwt.editor.client.SimpleBeanEditorDriver'.   Are 
>>> validation-api-.jar and validation-api--sources.jar on 
>>> the classpath?
>>>
>>>  [java]   Specify -logLevel DEBUG to see all errors.
>>>
>>>  [java]   [WARN] Unknown type 
>>> 'com.google.gwt.editor.client.SimpleBeanEditorDriver' specified in deferred 
>>> binding rule
>>>
>>>  [java]  Computing all possible rebind results for 
>>> 'com.google.gwt.user.client.DocumentModeAsserter'
>>>
>>>  [java] Rebinding 
>>> com.google.gwt.user.client.DocumentModeAsserter
>>>
>>>  [java]Checking rule >> class='com.google.gwt.query.client.plugins.effects.TransitionsAnimation.TransitionsClipAnimation'/>
>>>
>>>  [java]   [WARN] Unknown type 
>>> 'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
>>> deferred binding rule
>>>
>>>  [java]Checking rule >> class='com.google.gwt.query.client.plugins.effects.ClipAnimation'/>
>>>
>>>  [java]   [WARN] Unknown type 
>>> 'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
>>> deferred binding rule
>>>
>>>
>>> And also errors :
>>>
>>>   [java]  [ERROR] Errors in 
>>> 'com/google/gwt/query/client/GQuery.java'
>>>
>>>  [java] [ERROR] Line 226: The method $(Element) is 
>>> ambiguous for the type GQuery
>>>
>>>  [java]  Tracing compile failure path for type 
>>> 'com.google.gwt.query.client.GQuery'
>>>
>>>  [java] [ERROR] Errors in 
>>> 'com/google/gwt/query/client/GQuery.java'
>>>
>>>  [java][ERROR] Line 226: The method $(Element) is 
>>> ambiguous for the type GQuery
>>>
>>>  [java] [ERROR] Errors in 
>>> 'com/google/gwt/query/client/LazyGQuery.java'
>>>
>>>  [java][ERROR] 
>>> com.google.gwt.query.client.GQuery.Offset cannot be resolved to a type
>>>
>>>  [java] [ERROR] Errors in 
>>> 'com/google/gwt/query/client/plugins/Effects.java'
>>>
>>>  [java][ERROR] com.google.gwt.query.client.GQuery 
>>> cannot be resolved to a type
>>>
>>>  [java] [ERROR] Errors in 
>>> 'com/google/gwt/query/client/plugins/Plugin.java'
>>>
>>>  [java][ERROR] com.google.gwt.query.client.GQuery 
>>> cannot be resolved to a type
>>>
>>>  [java] [ERROR] Errors in 
>>> 'com/google/gwt/query/client/plugins/Events.java'
>>>
>>>  [java][ERROR] com.google.gwt.query.client.GQuery 
>>> cannot be resolved to a type
>>>
>>>  [java] [ERROR] Errors in 
>>> 'com/google/gwt/query/client/impl/AttributeImpl.java'
>>>
>>>  [java][ERROR] com.google.gwt.query.client.GQuery 
>>> cannot be resolved to a type
>>>
>>>  [java] [ERROR] Errors in 
>>> 'com/google/gwt/query/client/plugins/Widgets.java'
>>>
>>>  [java][ERROR] com.google.gwt.query.client.GQuery 
>>> cannot be resolved to a

Re: GWT Spring - WebApplicationInitializer does not start

2016-03-25 Thread Thomas Broyer



On Thursday, March 24, 2016 at 11:08:07 PM UTC+1, Łukasz Drzyzga wrote:
>
> Hi, I want to configure Stomp MessageBroker by programmaticaly java code 
> using Spring annotations in GWT 2.7 project but I noticed that method 
> onStartup is not executed :/ I used system output print, logger and 
> breakpoints and it's confirmed. I don't know what the problem? Maybe Jetty 
> doesn't support this configuration method?
> I changed version attribute in web.xml to 3.0 and I use javax servlet api 
> 3.1.0. I'm using Eclipse and I also set project as Spring nature and I 
> switch on scanning @Configuration etc. annotations.
>

GWT 2.7 doesn't support Servlet 3's ServletContainerInitializer; this has 
been changed on master for the next 2.8 release (i.e. not present in 2.8 
beta1) 

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Re: GWT 2.8 snapshot + GQuery snapshot : [ERROR] Errors in 'com/google/gwt/query/client/GQuery.java'

2016-03-25 Thread Thomas Broyer

BTW, it looks like GQuery is actually developed 
at https://github.com/ArcBees/gwtquery, https://github.com/gwtquery/gwtquery 
hasn't been updated for more than a year now.

On Friday, March 25, 2016 at 11:31:19 AM UTC+1, Thomas Broyer wrote:
>
> AIUI, it could be a type-inference glitch (line 226 is "return 
> $(f.getElement())" and Function#getElement is a generic method) due to the 
> update of JDT/ECJ.
> Changing that line to "return $(f.getElement())" might fix it.
>
> On Friday, March 25, 2016 at 10:14:58 AM UTC+1, maticpetek wrote:
>>
>> Hi,
>>   I have small GWT project that has use GWT 2.8 snapshot a couple of 
>> months old. Now I try update to GWT 2.8 snapshot build 25.3.2016. I replace 
>> all JAR files and build new GQuery from 
>> https://github.com/gwtquery/gwtquery. When I run SDM I get a lot of 
>> warnings :
>>
>> [java] Rebinding 
>> com.google.gwt.useragent.client.UserAgentAsserter
>>
>>  [java]Checking rule > class='com.google.gwt.query.client.plugins.effects.TransitionsAnimation.TransitionsClipAnimation'/>
>>
>>  [java]   [WARN] Unknown type 
>> 'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
>> deferred binding rule
>>
>>  [java]Checking rule > class='com.google.gwt.query.client.plugins.effects.ClipAnimation'/>
>>
>>  [java]   [WARN] Unknown type 
>> 'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
>> deferred binding rule
>>
>>  [java]Checking rule > class='com.google.gwt.editor.rebind.SimpleBeanEditorDriverGenerator'/>
>>
>>  [java]   [WARN] Detected warnings related to 
>> 'com.google.gwt.editor.client.SimpleBeanEditorDriver'.   Are 
>> validation-api-.jar and validation-api--sources.jar on 
>> the classpath?
>>
>>  [java]   Specify -logLevel DEBUG to see all errors.
>>
>>  [java]   [WARN] Unknown type 
>> 'com.google.gwt.editor.client.SimpleBeanEditorDriver' specified in deferred 
>> binding rule
>>
>>  [java]  Computing all possible rebind results for 
>> 'com.google.gwt.user.client.DocumentModeAsserter'
>>
>>  [java] Rebinding 
>> com.google.gwt.user.client.DocumentModeAsserter
>>
>>  [java]Checking rule > class='com.google.gwt.query.client.plugins.effects.TransitionsAnimation.TransitionsClipAnimation'/>
>>
>>  [java]   [WARN] Unknown type 
>> 'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
>> deferred binding rule
>>
>>  [java]Checking rule > class='com.google.gwt.query.client.plugins.effects.ClipAnimation'/>
>>
>>  [java]   [WARN] Unknown type 
>> 'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
>> deferred binding rule
>>
>>
>> And also errors :
>>
>>   [java]  [ERROR] Errors in 
>> 'com/google/gwt/query/client/GQuery.java'
>>
>>  [java] [ERROR] Line 226: The method $(Element) is 
>> ambiguous for the type GQuery
>>
>>  [java]  Tracing compile failure path for type 
>> 'com.google.gwt.query.client.GQuery'
>>
>>  [java] [ERROR] Errors in 
>> 'com/google/gwt/query/client/GQuery.java'
>>
>>  [java][ERROR] Line 226: The method $(Element) is 
>> ambiguous for the type GQuery
>>
>>  [java] [ERROR] Errors in 
>> 'com/google/gwt/query/client/LazyGQuery.java'
>>
>>  [java][ERROR] 
>> com.google.gwt.query.client.GQuery.Offset cannot be resolved to a type
>>
>>  [java] [ERROR] Errors in 
>> 'com/google/gwt/query/client/plugins/Effects.java'
>>
>>  [java][ERROR] com.google.gwt.query.client.GQuery 
>> cannot be resolved to a type
>>
>>  [java] [ERROR] Errors in 
>> 'com/google/gwt/query/client/plugins/Plugin.java'
>>
>>  [java][ERROR] com.google.gwt.query.client.GQuery 
>> cannot be resolved to a type
>>
>>  [java] [ERROR] Errors in 
>> 'com/google/gwt/query/client/plugins/Events.java'
>>
>>  [java][ERROR] com.google.gwt.query.client.GQuery 
>> cannot be resolved to a type
>>
>>  [java] [ERROR] Errors in 
>> 'com/google/gwt/query/client/impl/AttributeImpl.java'
>>
>>  [java][ERROR] com.google.gwt.query.client.GQuery 
>> cannot be resolved to a type
>>
>>  [java] [ERROR] Errors in 
>> 'com/google/gwt/query/client/plugins/Widgets.java'
>>
>>  [java][ERROR] com.google.gwt.query.client.GQuery 
>> cannot be resolved to a type
>>
>>  [java] [ERROR] Errors in 
>> 'com/google/gwt/query/client/plugins/QueuePlugin.java'
>>
>>  [java][ERROR] com.google.gwt.query.client.GQuery 
>> cannot be resolved to a type
>>
>>  [java]  Computing all possible rebind results for 
>> 'com.google.gwt.query.client.Conso

Re: GWT 2.8 snapshot + GQuery snapshot : [ERROR] Errors in 'com/google/gwt/query/client/GQuery.java'

2016-03-25 Thread Thomas Broyer

AIUI, it could be a type-inference glitch (line 226 is "return 
$(f.getElement())" and Function#getElement is a generic method) due to the 
update of JDT/ECJ.
Changing that line to "return $(f.getElement())" might fix it.

On Friday, March 25, 2016 at 10:14:58 AM UTC+1, maticpetek wrote:
>
> Hi,
>   I have small GWT project that has use GWT 2.8 snapshot a couple of 
> months old. Now I try update to GWT 2.8 snapshot build 25.3.2016. I replace 
> all JAR files and build new GQuery from 
> https://github.com/gwtquery/gwtquery. When I run SDM I get a lot of 
> warnings :
>
> [java] Rebinding 
> com.google.gwt.useragent.client.UserAgentAsserter
>
>  [java]Checking rule  class='com.google.gwt.query.client.plugins.effects.TransitionsAnimation.TransitionsClipAnimation'/>
>
>  [java]   [WARN] Unknown type 
> 'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
> deferred binding rule
>
>  [java]Checking rule  class='com.google.gwt.query.client.plugins.effects.ClipAnimation'/>
>
>  [java]   [WARN] Unknown type 
> 'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
> deferred binding rule
>
>  [java]Checking rule  class='com.google.gwt.editor.rebind.SimpleBeanEditorDriverGenerator'/>
>
>  [java]   [WARN] Detected warnings related to 
> 'com.google.gwt.editor.client.SimpleBeanEditorDriver'.   Are 
> validation-api-.jar and validation-api--sources.jar on 
> the classpath?
>
>  [java]   Specify -logLevel DEBUG to see all errors.
>
>  [java]   [WARN] Unknown type 
> 'com.google.gwt.editor.client.SimpleBeanEditorDriver' specified in deferred 
> binding rule
>
>  [java]  Computing all possible rebind results for 
> 'com.google.gwt.user.client.DocumentModeAsserter'
>
>  [java] Rebinding 
> com.google.gwt.user.client.DocumentModeAsserter
>
>  [java]Checking rule  class='com.google.gwt.query.client.plugins.effects.TransitionsAnimation.TransitionsClipAnimation'/>
>
>  [java]   [WARN] Unknown type 
> 'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
> deferred binding rule
>
>  [java]Checking rule  class='com.google.gwt.query.client.plugins.effects.ClipAnimation'/>
>
>  [java]   [WARN] Unknown type 
> 'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
> deferred binding rule
>
>
> And also errors :
>
>   [java]  [ERROR] Errors in 
> 'com/google/gwt/query/client/GQuery.java'
>
>  [java] [ERROR] Line 226: The method $(Element) is 
> ambiguous for the type GQuery
>
>  [java]  Tracing compile failure path for type 
> 'com.google.gwt.query.client.GQuery'
>
>  [java] [ERROR] Errors in 
> 'com/google/gwt/query/client/GQuery.java'
>
>  [java][ERROR] Line 226: The method $(Element) is 
> ambiguous for the type GQuery
>
>  [java] [ERROR] Errors in 
> 'com/google/gwt/query/client/LazyGQuery.java'
>
>  [java][ERROR] 
> com.google.gwt.query.client.GQuery.Offset cannot be resolved to a type
>
>  [java] [ERROR] Errors in 
> 'com/google/gwt/query/client/plugins/Effects.java'
>
>  [java][ERROR] com.google.gwt.query.client.GQuery 
> cannot be resolved to a type
>
>  [java] [ERROR] Errors in 
> 'com/google/gwt/query/client/plugins/Plugin.java'
>
>  [java][ERROR] com.google.gwt.query.client.GQuery 
> cannot be resolved to a type
>
>  [java] [ERROR] Errors in 
> 'com/google/gwt/query/client/plugins/Events.java'
>
>  [java][ERROR] com.google.gwt.query.client.GQuery 
> cannot be resolved to a type
>
>  [java] [ERROR] Errors in 
> 'com/google/gwt/query/client/impl/AttributeImpl.java'
>
>  [java][ERROR] com.google.gwt.query.client.GQuery 
> cannot be resolved to a type
>
>  [java] [ERROR] Errors in 
> 'com/google/gwt/query/client/plugins/Widgets.java'
>
>  [java][ERROR] com.google.gwt.query.client.GQuery 
> cannot be resolved to a type
>
>  [java] [ERROR] Errors in 
> 'com/google/gwt/query/client/plugins/QueuePlugin.java'
>
>  [java][ERROR] com.google.gwt.query.client.GQuery 
> cannot be resolved to a type
>
>  [java]  Computing all possible rebind results for 
> 'com.google.gwt.query.client.Console'
>
> Any idea what to look would be more then appreciate.
> Regards,
>   Matic 
>
>

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GWT 2.8 snapshot + GQuery snapshot : [ERROR] Errors in 'com/google/gwt/query/client/GQuery.java'

2016-03-25 Thread maticpetek

Hi,
  I have small GWT project that has use GWT 2.8 snapshot a couple of months 
old. Now I try update to GWT 2.8 snapshot build 25.3.2016. I replace all 
JAR files and build new GQuery from https://github.com/gwtquery/gwtquery. 
When I run SDM I get a lot of warnings :

[java] Rebinding 
com.google.gwt.useragent.client.UserAgentAsserter

 [java]Checking rule 

 [java]   [WARN] Unknown type 
'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
deferred binding rule

 [java]Checking rule 

 [java]   [WARN] Unknown type 
'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
deferred binding rule

 [java]Checking rule 

 [java]   [WARN] Detected warnings related to 
'com.google.gwt.editor.client.SimpleBeanEditorDriver'.   Are 
validation-api-.jar and validation-api--sources.jar on 
the classpath?

 [java]   Specify -logLevel DEBUG to see all errors.

 [java]   [WARN] Unknown type 
'com.google.gwt.editor.client.SimpleBeanEditorDriver' specified in deferred 
binding rule

 [java]  Computing all possible rebind results for 
'com.google.gwt.user.client.DocumentModeAsserter'

 [java] Rebinding 
com.google.gwt.user.client.DocumentModeAsserter

 [java]Checking rule 

 [java]   [WARN] Unknown type 
'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
deferred binding rule

 [java]Checking rule 

 [java]   [WARN] Unknown type 
'com.google.gwt.query.client.plugins.Effects.GQAnimation' specified in 
deferred binding rule


And also errors :

  [java]  [ERROR] Errors in 
'com/google/gwt/query/client/GQuery.java'

 [java] [ERROR] Line 226: The method $(Element) is 
ambiguous for the type GQuery

 [java]  Tracing compile failure path for type 
'com.google.gwt.query.client.GQuery'

 [java] [ERROR] Errors in 
'com/google/gwt/query/client/GQuery.java'

 [java][ERROR] Line 226: The method $(Element) is 
ambiguous for the type GQuery

 [java] [ERROR] Errors in 
'com/google/gwt/query/client/LazyGQuery.java'

 [java][ERROR] 
com.google.gwt.query.client.GQuery.Offset cannot be resolved to a type

 [java] [ERROR] Errors in 
'com/google/gwt/query/client/plugins/Effects.java'

 [java][ERROR] com.google.gwt.query.client.GQuery 
cannot be resolved to a type

 [java] [ERROR] Errors in 
'com/google/gwt/query/client/plugins/Plugin.java'

 [java][ERROR] com.google.gwt.query.client.GQuery 
cannot be resolved to a type

 [java] [ERROR] Errors in 
'com/google/gwt/query/client/plugins/Events.java'

 [java][ERROR] com.google.gwt.query.client.GQuery 
cannot be resolved to a type

 [java] [ERROR] Errors in 
'com/google/gwt/query/client/impl/AttributeImpl.java'

 [java][ERROR] com.google.gwt.query.client.GQuery 
cannot be resolved to a type

 [java] [ERROR] Errors in 
'com/google/gwt/query/client/plugins/Widgets.java'

 [java][ERROR] com.google.gwt.query.client.GQuery 
cannot be resolved to a type

 [java] [ERROR] Errors in 
'com/google/gwt/query/client/plugins/QueuePlugin.java'

 [java][ERROR] com.google.gwt.query.client.GQuery 
cannot be resolved to a type

 [java]  Computing all possible rebind results for 
'com.google.gwt.query.client.Console'

Any idea what to look would be more then appreciate.
Regards,
  Matic 

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Re: GWT React

2016-03-25 Thread DavidN

Nice work,

I prefer React over Angular it is so much cleaner in design. I will 
certainly take a look at what you have produced, since me too I am trying 
to find solutions for a post GWT Widget/UiBinder world.

For one component that we have, which generates a form driven by XSchema's 
I already moved to using JsInterop and Elemental as the basis and I was 
suprised that it was actually easy to move away from Widgets. 
The combination with Lambda's makes the code actually much cleaner and now 
I can do proper unittesting since all the JsInterop stuff can be easily 
mocked.

On Thursday, March 24, 2016 at 8:49:10 PM UTC+1, Paul Stockley wrote:
>
> We currently have a large GWT application that we have been working on for 
> the last 4 years. We use Uibinder and Widgets very
>
>  heavily, although we have our own Widget set and RPC mechanism. The 
> application is being constantly expanded and realistically 
>
> won’t be fully rewritten for 8-10 years. Given the news about J2CL not 
> supporting widgets, I have been thinking about how we could 
>
> migrate to a world without widgets on an incremental basis.  
>
>  
>
> In parallel, I have also being exploring writing native mobile apps. We 
> tried the mobile web but it wasn’t great and we really needed
>
> hardware integration for NFC and total offline capabilities. Which brings 
> us React. I found React Native and started researching 
>
> and playing around. I have to say I am very impressed. In my mind it is a 
> game changer. They are getting close to allowing one code 
>
> base to support iOS, Android and the Web with only about 10-20% custom 
> code for each platform. 
>
>  
>
> The more I played with React Native, the more I liked the React 
> declarative model for defining UI’s. I started thinking that React 
>
> would be ideal for incrementally embedding within an existing GWT 
> application. Facebook designed it so they could incrementally
>
> role it out into their existing Web application. When GWT 2.8 beta came 
> out, I wanted something to try the new JsInterop out on.
>
> React seemed like a good candidate. After a couple of weeks of 
> experimenting, I have a working proof of concept for React. I 
>
> have to say it was a real challenge and really pushed the capabilities of 
> JsInterop. I had to do some javascript hacking to get it 
>
> to work. My goal was to create an interface that was as close to 
> JavaScript as possible. That way you could use the many React
>
> tutorials and apply them to writing GWT React code without some huge 
> mental translation.
>
>  
>
> I decided to try and port http://todomvc.com/examples/react/#/ to Java. 
> The reason for this was so I could have a direct comparison 
>
> between the Java and Javascript code. I have implemented enough of the 
> React API to get this working. In addition, I also integrated 
>
> a 3rd party React component called React Router (
> https://github.com/reactjs/react-router). This is pretty much the de 
> facto standard 
>
> for routing in the React world. This proved that I could consume React 
> components written by other people. Overall I am pleased with 
>
> how it turned out. I find the java version easier to follow, especially 
> since the Prop types are explicit. It would be nice to support JSX
>
>  instead of the legacy createElement interface. However, it isn’t 
> terrible. The Java version was 465 lines in total vs 419 for the original 
>
> JavaScript code. If you take out the import statements which I don’t 
> really count because the IDE creates them for you, the Java version 
>
> was actually only 414 lines. You can take a look at the code here :
>
>  
>
>
> https://drive.google.com/folderview?id=0Bxp8vLBG2ol3NjAtRmdjMDhlc0k&usp=sharing
>
>  
>
> At this point I am about 80% sure what I have created could become a 
> viable production solution. The next steps I want to do are:
>
>
>
>1. Finish the API
>2. Test embedding Gwt React within an existing GWT Widget based 
>application.
>3. Build an API for Redux (https://github.com/reactjs/redux) and React 
>Redux (https://github.com/reactjs/react-redux) which is becoming the 
>de facto standard for the MC in MVC. I will probably re-implement todomvc 
>using this. 
>
>  
>
> If I don’t hit any roadblocks, I will either publish to Github or make the 
> source publicly available. I haven’t made my mind up on which approach I 
> will take.
>

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Re: GWT React

9 matches

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