Re: Inter-frame communication
I was looking through this because we are also looking at options for multi-module / portal style app. The thing about postMessage is that it is only supported in FF3, Safari 4, IE8 etc. The JQuery version falls back to a document.location.hash version for other browsers, which ends up in your browser history and collides with the gwt history mechanism. Of course, if you have multiple iframes then browser history is a big problem anyway. J -- 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-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Inter-frame communication
On Mar 21, 12:08 am, Olivier Monaco olivier.mon...@free.fr wrote: Hi, I'm working on a front with a global portal as a placeholder for applications. Each application is an independent GWT module opened in an iframe. The portal and all applications can talk one to each other. Each application can send messages to the portal about it state (working, title...). But the main feature is to have only one Hi, I have thought about similar solutions too and your example is very interesting. 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-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Inter-frame communication
Hi,
I'm working on a front with a global portal as a placeholder for
applications. Each application is an independent GWT module opened in
an iframe. The portal and all applications can talk one to each other.
Each application can send messages to the portal about it state
(working, title...). But the main feature is to have only one
connection to the server shared by all applications. The portal has a
data manager which manage data exchange with the server
(authentication, caching...). All application ask data to the portal.
When a data object is changed, the portal broadcasts the new object to
all applications... and so on.
So, to answer to your question, I use a messaging system. It's based
on the postMessage method (and it's window.name compatibility
implementation). I'm using a bootstrap process that allows a new
application to discover all other applications and register itself to
them. Then, I exchange JSON object (serialized as a String). It's for
me the best way because I never used GWT-RPC. Instead, we have a REST
server offering data as JSON object. A tool use server classes to
produce GWT classes which works have proxy to JavaScriptObject. For
better understand, a little piece of code:
- A special JavaScriptObject (not data-specific) to mange JSON with
ease
public class JsObject extends JavaScriptObject {
...
public native final String getString(String name)
/*-{
return this[name];
}-*/;
...
}
- A data-class (generated) which wraps a JSON object
public class MyData {
private JsObject jso;
...
public String getName()
{
return jso.getString(name);
}
...
}
- The unserialization process
String data = data from server/messaging system ;
JavaScriptObject jso = eval(data);
MyData result = new MyData((JsObject)jso.cast());
To send object through the messaging system, we just serialize the
JavaScriptObject as a String. On the other end, we just eval the
String and create instantiate a GWT-class to wrap the JSON object. The
benefits are: zero overhead for serialization/unserialization and same
process for data coming from/going to the server, the messaging
system, a storage system (cookie, HTML 5...)...
I hope this help.
Olivier
On 19 mar, 15:54, Jonathan Hunt j...@42quarks.com wrote:
Hi
Thanks for your help. I guess my question wasn't so much how to do but
more advice on a good, clean way of implementing it in gwt. Basically
I want interframe rpc. Something like the server rpc in gwt where you
don't have to manually deal with serialization etc. I was hoping
someone might have done something similar and might have a few pointer
on the best way of architecturing it cleanly since I'm fairly new to
gwt.
Thanks for any help
J
On Friday, March 19, 2010, Pondmouse pondmo...@googlemail.com wrote:
I did something similar by writing native javascript. See here
http://googlewebtoolkit.blogspot.com/2008/07/getting-to-really-know-g...
I had trouble getting the embedded iframes call the javascript
functions. See herehttp://www.dyn-web.com/tutorials/iframes/
Managed to call the javascript functions using top.functionname()
On Mar 19, 6:23 am, Sudeep S sudee...@gmail.com wrote:
hey Jonny,
jquery has a plugin for window.post that works for all browsers.
i've used that with gwt for resizing cross domain iframe.
you can give that a shot.
On Thu, Mar 18, 2010 at 2:08 PM, jjh j...@42quarks.com wrote:
Hi,
I am wanting allow extensions to my website (essentially third-party
javascript code that can provide response to certain events, sort of
simplified, gui-less gadgets). It seems like the safest way to this is
to use iframes and inter-frame communication to limit what the third-
party code can do (to some extent).
So now I need to be able to post events to the gadget-frames and
receive responses (basically RPC between frames). I know this can be
done in javascript using postMessage (window.name hacks for older
browsers). But I'm not sure what the best way to do this in GWT is.
Does anyone have any pointers for a clean way of doing this in GWT.
Regards,
Jonny
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Re: Inter-frame communication
I did something similar by writing native javascript. See here http://googlewebtoolkit.blogspot.com/2008/07/getting-to-really-know-gwt-part-1-jsni.html I had trouble getting the embedded iframes call the javascript functions. See here http://www.dyn-web.com/tutorials/iframes/ Managed to call the javascript functions using top.functionname() On Mar 19, 6:23 am, Sudeep S sudee...@gmail.com wrote: hey Jonny, jquery has a plugin for window.post that works for all browsers. i've used that with gwt for resizing cross domain iframe. you can give that a shot. On Thu, Mar 18, 2010 at 2:08 PM, jjh j...@42quarks.com wrote: Hi, I am wanting allow extensions to my website (essentially third-party javascript code that can provide response to certain events, sort of simplified, gui-less gadgets). It seems like the safest way to this is to use iframes and inter-frame communication to limit what the third- party code can do (to some extent). So now I need to be able to post events to the gadget-frames and receive responses (basically RPC between frames). I know this can be done in javascript using postMessage (window.name hacks for older browsers). But I'm not sure what the best way to do this in GWT is. Does anyone have any pointers for a clean way of doing this in GWT. Regards, Jonny -- 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-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- 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-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Inter-frame communication
Hi Thanks for your help. I guess my question wasn't so much how to do but more advice on a good, clean way of implementing it in gwt. Basically I want interframe rpc. Something like the server rpc in gwt where you don't have to manually deal with serialization etc. I was hoping someone might have done something similar and might have a few pointer on the best way of architecturing it cleanly since I'm fairly new to gwt. Thanks for any help J On Friday, March 19, 2010, Pondmouse pondmo...@googlemail.com wrote: I did something similar by writing native javascript. See here http://googlewebtoolkit.blogspot.com/2008/07/getting-to-really-know-gwt-part-1-jsni.html I had trouble getting the embedded iframes call the javascript functions. See here http://www.dyn-web.com/tutorials/iframes/ Managed to call the javascript functions using top.functionname() On Mar 19, 6:23 am, Sudeep S sudee...@gmail.com wrote: hey Jonny, jquery has a plugin for window.post that works for all browsers. i've used that with gwt for resizing cross domain iframe. you can give that a shot. On Thu, Mar 18, 2010 at 2:08 PM, jjh j...@42quarks.com wrote: Hi, I am wanting allow extensions to my website (essentially third-party javascript code that can provide response to certain events, sort of simplified, gui-less gadgets). It seems like the safest way to this is to use iframes and inter-frame communication to limit what the third- party code can do (to some extent). So now I need to be able to post events to the gadget-frames and receive responses (basically RPC between frames). I know this can be done in javascript using postMessage (window.name hacks for older browsers). But I'm not sure what the best way to do this in GWT is. Does anyone have any pointers for a clean way of doing this in GWT. Regards, Jonny -- 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-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- 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-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- Jonathan J Hunt j...@42quarks.com Homepage: http://www.42quarks.com (Further contact details there) Physics isn't the most important thing. Love is. Richard Feynman -- 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-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Inter-frame communication
Hi, I am wanting allow extensions to my website (essentially third-party javascript code that can provide response to certain events, sort of simplified, gui-less gadgets). It seems like the safest way to this is to use iframes and inter-frame communication to limit what the third- party code can do (to some extent). So now I need to be able to post events to the gadget-frames and receive responses (basically RPC between frames). I know this can be done in javascript using postMessage (window.name hacks for older browsers). But I'm not sure what the best way to do this in GWT is. Does anyone have any pointers for a clean way of doing this in GWT. Regards, Jonny -- 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-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Inter-frame communication
hey Jonny, jquery has a plugin for window.post that works for all browsers. i've used that with gwt for resizing cross domain iframe. you can give that a shot. On Thu, Mar 18, 2010 at 2:08 PM, jjh j...@42quarks.com wrote: Hi, I am wanting allow extensions to my website (essentially third-party javascript code that can provide response to certain events, sort of simplified, gui-less gadgets). It seems like the safest way to this is to use iframes and inter-frame communication to limit what the third- party code can do (to some extent). So now I need to be able to post events to the gadget-frames and receive responses (basically RPC between frames). I know this can be done in javascript using postMessage (window.name hacks for older browsers). But I'm not sure what the best way to do this in GWT is. Does anyone have any pointers for a clean way of doing this in GWT. Regards, Jonny -- 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-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- 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-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
