Error chanel in Nevow.Athena
On Sun, Jul 19, 2009 at 6:55 PM, Juanjo Conti<jjconti@gmail.com> wrote:
I have notice that when an error occur in a LiveElement (lost connection or not handled exception in the server) an error message is displayed in the browser. Is there an explicit way to use this error showing mechanism to display errors from my application? This stuff seems not covered in Athena documentation.
The error dialog you're noticing comes from Nevow.Athena.PageWidget.showErrorDialog (which is defined in Nevow/nevow/js/Nevow/Athena/__init__.js). The PageWidget is the root JavaScript class that controls everything that's going on on the page. If you want to customize this, you should subclass Nevow.Athena.PageWidget in your application, and override showErrordDialog. On the Python side of things, you need to subclass nevow.athena.LivePage, and set your subclass's jsClass attribute to the name of your PageWidget subclass. I would not recommend trying to implement everything PageWidget does itself, since it does quite a lot and its interface isn't completely documented anywhere. This could definitely be better documented. Can you contribute a documentation patch that explains that stuff I just said? :-)
2009/7/19 Glyph Lefkowitz <glyph@divmod.com>:
On Sun, Jul 19, 2009 at 6:55 PM, Juanjo Conti<jjconti@gmail.com> wrote:
I have notice that when an error occur in a LiveElement (lost connection or not handled exception in the server) an error message is displayed in the browser. Is there an explicit way to use this error showing mechanism to display errors from my application? This stuff seems not covered in Athena documentation.
The error dialog you're noticing comes from Nevow.Athena.PageWidget.showErrorDialog (which is defined in Nevow/nevow/js/Nevow/Athena/__init__.js).
The PageWidget is the root JavaScript class that controls everything that's going on on the page. If you want to customize this, you should subclass Nevow.Athena.PageWidget in your application, and override showErrordDialog. On the Python side of things, you need to subclass nevow.athena.LivePage, and set your subclass's jsClass attribute to the name of your PageWidget subclass. [..]
Ok, but I don't actually need a customization, I'm just fine using the showErrorDialog. How can I acces the correct PageWidget instance? myLivePage.jsClass? So I can do myLivePage.jsClass.showErrorDialog(some params); right?
This could definitely be better documented. Can you contribute a documentation patch that explains that stuff I just said? :-)
As soon as I get something done, I'll contribute with doc. Thanks! -- Juanjo Conti
On Mon, 20 Jul 2009 11:33:45 -0300, Juanjo Conti <jjconti@gmail.com> wrote:
2009/7/19 Glyph Lefkowitz <glyph@divmod.com>:
On Sun, Jul 19, 2009 at 6:55 PM, Juanjo Conti<jjconti@gmail.com> wrote:
I have notice that when an error occur in a LiveElement (lost connection or not handled exception in the server) an error message is displayed in the browser. Is there an explicit way to use this error showing mechanism to display errors from my application? This stuff seems not covered in Athena documentation.
The error dialog you're noticing comes from Nevow.Athena.PageWidget.showErrorDialog (which is defined in Nevow/nevow/js/Nevow/Athena/__init__.js).
The PageWidget is the root JavaScript class that controls everything that's going on on the page. If you want to customize this, you should subclass Nevow.Athena.PageWidget in your application, and override showErrordDialog. On the Python side of things, you need to subclass nevow.athena.LivePage, and set your subclass's jsClass attribute to the name of your PageWidget subclass. [..]
Ok, but I don't actually need a customization, I'm just fine using the showErrorDialog. How can I acces the correct PageWidget instance? myLivePage.jsClass?
So I can do myLivePage.jsClass.showErrorDialog(some params); right?
This could definitely be better documented. Can you contribute a documentation patch that explains that stuff I just said? :-)
As soon as I get something done, I'll contribute with doc.
If you're trying to do it from the Python side: livePage.callRemote("showErrorDialog", ...) If you're trying to do it from the JavaScript side: widget.getPageWidget().showErrorDialog(...) I've never tried either, but it seems like they should work. ;) Jean-Paul
participants (3)
-
Glyph Lefkowitz -
Jean-Paul Calderone -
Juanjo Conti