Re: Feature Detection

[Thomas Broyer]

What about laptops with touch screens? (Surface, Chrome Pixel, etc.) Maybe the 
user will use the mouse primarily in those? Maybe not?

I seem to remember that touch-enabled couldn't be detected, because one could 
also just plug a touch screen to the device while the browser is open (and a 
page loaded!)
So this is likely to generate a lot of false positives.

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Re: SimplePanel can only contain one child widget

['Janine Joachim' via GWT Users]

Diagram is not a SimplePanel, its an AbsolutePanel. Diagram is a class by 
libary gwt-connectors.
Maybe something is wrong with my Initializing? When i do this inside the 
clickevent no error occurs. But then i cannot use my diagramlistener...


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Re: SimplePanel can only contain one child widget

[Gilberto]

AbsolutePanel is not a SimplePanel, so the problem isn't there. I guess it 
is something related to your own domain classes - maybe Diagram.

You can also use the browser debugger to see exactly where the error occurs.


>
>

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Re: GWT Material Design Addins

[Gilberto]

By the way Thomas you can use subpackages after the namespace declaration 
in UIBinder (GWT Material uses all the time):


xmlns:ma="urn:import:gwt.material.design.addins.client"

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Re: Feature Detection

[Gilberto]

This is what I do:

public static native boolean isOnTouchDevice()/*-{
return 'ontouchstart' in window || navigator.maxTouchPoints;
}-*/;

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SimplePanel can only contain one child widget

['Janine Joachim' via GWT Users]

up vote
down votefavorite 


When i run the following Code and push Button "Push", more than once a 
time, i get browser error "simplePanel can only contain one child widget". 
How can i solve that problem? thank you in advance! Jogi

public class Projekt implements EntryPoint {

private RootPanel rootPanel;

public void onModuleLoad() {

rootPanel = RootPanel.get("gwtContainer");
rootPanel.setSize("1902", "868");

 final AbsolutePanel boundaryPanel = new AbsolutePanel();
 boundaryPanel.setStyleName("frame1");
 boundaryPanel.setSize("1455px", "600px");   

 final Diagram diagram = new Diagram(boundaryPanel);

 RootPanel.get().add(boundaryPanel, 446, 242);


 final Connector con = new Connector(100, 300, 300, 500);

 Button la = new Button("Push");
 la.setSize("200", "200");
 RootPanel.get().add(la);

 Button la2 = new Button("Push2");
 la2.setSize("200", "200");
 RootPanel.get().add(la2);

 final Image img = new Image("images/concrete.svg");
 img.setSize("200", "200");


 final Shape shapei = new Shape(img);


 Image img2 = new Image("images/variable.svg");
 img2.setSize("200", "200");
 boundaryPanel.add(img2, 200,200);

 final Shape shapei2 = new Shape(img2);
 shapei2.showOnDiagram(diagram);

 la.addClickHandler(new ClickHandler(){

@Override
public void onClick(ClickEvent event) {
 boundaryPanel.add(img, 100,100);
 shapei.showOnDiagram(diagram);
}

 });
 la2.addClickHandler(new ClickHandler(){

@Override
public void onClick(ClickEvent event) {

 con.showOnDiagram(diagram);
}

 });


 diagram.addDiagramListener(new DiagramListenerAdapter() {

  @Override
  public void onElementConnect(ElementConnectEvent event) {
if (con.startEndPoint.isGluedToConnectionPoint()) {
Widget connected = 
con.startEndPoint.gluedConnectionPoint.parentWidget;
if(connected.equals(shapei.connectedWidget)){
  Image logo = new Image("images/xor.svg");
  logo.setSize("100", "100");
  boundaryPanel.add(logo);
}
else if(connected.equals(shapei2.connectedWidget)){
 Image logo2 = new Image("images/and.svg");
  logo2.setSize("100", "100");
  boundaryPanel.add(logo2);
};
  }}
});

}}

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Re: GWT 2.8 and Guava 20

[Thomas Broyer]

On Tuesday, June 21, 2016 at 3:59:51 PM UTC+2, Johan Falk wrote:
>
> While not only a GWT question, I thought this was the best place to ask. 
> I've got an GWT 2.7 application which is being upgraded to 2.8. I'm using 
> one of the latest snapshot (2.8.0-269) together with Guava 
> (20.0.220-SNAPSHOT).
>
> The problem is I get the same type of error that is mentioned in this 
> issue: https://github.com/gwtproject/gwt/issues/9323, but just adding 
> both error_prone_annotations and j2objc-annotations jars to the classpath 
> when running the CodeServer doesn't seem to work for me.
>
> I did get it working by manually adding a GWT module file 
> (Annotations.gwt.xml) to both jars, which just sets the source path:
> 
> 
>
> 
> 
> 
> 
>
> And then add then reference this in my main Module file:
> 
> 
>
> But I would like to avoid manually modifying those jars (as that makes 
> each upgrade more of a pain, and I need to upload the modified jars to our 
> maven repository instead of just mirroring the existing ones). Anyone have 
> any idea what I'm missing?
>

No idea why GWT complains, but just a note in passing that you don't have 
to "patch" the JARs: GWT works from the classpath, so it only matters that 
the Annotations.gwt.xml files exist in the 
com.google.errorprone.annotations and com.google.j2objc.annotations 
packages, whichever the exact location "on disk"; so they can just live in 
your app sources, or for example in small JARs deployed to your Maven repo, 
that would depend on the error_prone_annotations and j2objc-annotations 
source JARs. 

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GWT 2.8 and Guava 20

[Johan Falk]

While not only a GWT question, I thought this was the best place to ask. 
I've got an GWT 2.7 application which is being upgraded to 2.8. I'm using 
one of the latest snapshot (2.8.0-269) together with Guava 
(20.0.220-SNAPSHOT).

The problem is I get the same type of error that is mentioned in this 
issue: https://github.com/gwtproject/gwt/issues/9323, but just adding both 
error_prone_annotations 
and j2objc-annotations jars to the classpath when running the CodeServer 
doesn't seem to work for me.

I did get it working by manually adding a GWT module file 
(Annotations.gwt.xml) to both jars, which just sets the source path:








And then add then reference this in my main Module file:



But I would like to avoid manually modifying those jars (as that makes each 
upgrade more of a pain, and I need to upload the modified jars to our maven 
repository instead of just mirroring the existing ones). Anyone have any 
idea what I'm missing?

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Re: Feature Detection

[Frank]

https://github.com/kaimallea/isMobile

Just wrap this in GWT

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