Hi
Most of the time I try to put in BXML the GUI layout and user interactions, whereas the bindable is
for back-end integration, data transformations and loading the GUI.
In this case, I wanted to have buttons that get pressed when user hits return key and since I prefer
java to javascript ...
Anyway, I can can live without this feature, but at least it would be good to document in the
tutorial that only scripted listeners are possible in BXML.
Regards
Anton
On 02/02/2011 05:11, Greg Brown wrote:
Hi,
I had replied to this last night, but apparently my phone decided to send the reply to the
original sender, not the list. :-P
Listener list properties are currently handled differently than other properties. The assumption
was that if you want to define a listener in Java or other compiled language, you'll probably want
to use Bindable and attach your listeners that way. It is possible to support the described syntax
- I just didn't expect developers to want to do that. :-)
G
On Feb 1, 2011, at 7:55 AM, Chris Bartlett wrote:
Anton,
Thanks for all the info.
I was just getting ready to reply back to you to let you know that I was wrong, and this is not
currently possible. Only listeners defined in script are supported.
I'm not sure if this is due to a technical limitation or if it is just something that has not
been required/requested.
Greg - perhaps you could clarify?
Chris
On 1 February 2011 22:40, anton dos santos <[email protected]
<mailto:[email protected]>> wrote:
Here the exception:
An error occurred at line number 10 in file
/D:/DVPT/PIVOT/src/test/ButtonPressTest.bxml:
java.lang.NullPointerException: null script
at
com.sun.script.javascript.RhinoScriptEngine.eval(RhinoScriptEngine.java:122)
at
javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:247)
at
org.apache.pivot.beans.BXMLSerializer.processEndElement(BXMLSerializer.java:1250)
at
org.apache.pivot.beans.BXMLSerializer.readObject(BXMLSerializer.java:440)
at
org.apache.pivot.beans.BXMLSerializer.readObject(BXMLSerializer.java:614)
at
org.apache.pivot.beans.BXMLSerializer.readObject(BXMLSerializer.java:568)
at
org.apache.pivot.beans.BXMLSerializer.readObject(BXMLSerializer.java:534)
at test.ButtonPressTest.startup(ButtonPressTest.java:37)
at
org.apache.pivot.wtk.DesktopApplicationContext$2.run(DesktopApplicationContext.java:594)
at
org.apache.pivot.wtk.ApplicationContext$QueuedCallback.run(ApplicationContext.java:1474)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Here is the code: ButtonPressTest.java
package test;
import org.apache.pivot.beans.BXMLSerializer;
import org.apache.pivot.collections.Map;
import org.apache.pivot.wtk.*;
public class ButtonPressTest implements Application {
public static final class ButtonPress implements ButtonPressListener {
public void buttonPressed(Button button) {
System.out.println("button pressed");
}
}
private Window window = null;
public void startup(Display display, Map<String, String> properties)
throws Exception {
BXMLSerializer bxmlSerializer = new BXMLSerializer();
window = (Window) bxmlSerializer.readObject(ButtonPressTest.class,
"ButtonPressTest.bxml");
((PushButton)bxmlSerializer.getNamespace().get("Button2")).getButtonPressListeners().add(
new ButtonPress());
window.open(display);
}
public boolean shutdown(boolean optional) throws Exception {
if (window != null) {
window.close();
}
return false;
}
public void suspend() throws Exception {
}
public void resume() throws Exception {
}
public static void main(String[] args) {
DesktopApplicationContext.main(ButtonPressTest.class, args);
}
}
And the BXML: ButtonPressTest.bxml
<Window title="Test" maximized="true"
xmlns:bxml="http://pivot.apache.org/bxml"; <http://pivot.apache.org/bxml>
xmlns:test="test"
xmlns="org.apache.pivot.wtk">
<BoxPane orientation="horizontal">
<PushButton bxml:id="Button1" buttonData="Listener added in BXML">
<buttonPressListeners>
<test:ButtonPressTest.ButtonPress/>
</buttonPressListeners>
</PushButton>
<PushButton bxml:id="Button2" buttonData="Listener added in Java">
</PushButton>
</BoxPane>
</Window>
On 31/01/2011 21:16, Chris Bartlett wrote:
I am pretty sure that it is possible, and the syntax looks OK to me. I
don't have a dev
environment in front of me to check though.
What exception are you seeing? Can you try to post a short example of a
simple listener and
BXML which demonstrate the exception.
Chris
On 1 February 2011 02:13, anton dos santos <[email protected]
<mailto:[email protected]>> wrote:
Hi
I want to add a listener coded in java to a button. I tried following
syntax:
|||<||PushButton| |buttonData||=||"Click Me!"||>|
|||<||buttonPressListeners||>|
|<utils:MyListener/>|
|||</||buttonPressListeners||>|
|||</||PushButton||>|
but got an exception.
It seems to me that only scripts can be added as listeners in BXML. Is
this right or am
I doing something wrong in the above code ?
Regards
Anton
