http://my.opera.com/WebApplications/blog/show.dml/438711
http://zeeohemgee.blogspot.com/2006/09/writing-sse-backends-with-python_09.html
http://oxzone.opera.com:8088/talk/kanzure
http://oxzone.opera.com:8088/script.js
http://webtoman.com/opera/custom/custom_buttons.php


kanzure
Remco16:09		Started talking on Wed, 30 May 2007 16:09:25 GMT-0400 
16:09		-> kanzure has joined 
16:09	kanzure	Alright 
16:09	Remco	Good 
16:09	kanzure	Nice interface, they have here, btw. 
16:09	Remco	It's a clone of Opera's irc interface 
16:10	Remco	Once you type a message and press "Talk!" or enter, an xmlhttprequest is sent 
16:10	Remco	The server then sends it over the SSE stream to all clients 
16:10	Remco	So once you see the message on screen, it's also on the screen of other clients 
16:10	kanzure	Alright. So then what about this "event" tag that gmoz is mentioning? 
16:11	Remco	It's where all the events get in 
16:11	Remco	You do something like eventtagid.addEventlistener 
16:11	kanzure	Is SSE just the under-the-hood implementation to make XMLHttpRequest work ? 
16:11	Remco	No, it's different 
16:12	Remco	SSE is basically a never ending html page 
16:12	kanzure	okay, that makes sense 
16:12	Remco	Just with other data, and it gets interpreted by the client line by line 
16:12	kanzure	kind of like the videos that load from Youtube on demand 
16:12	Remco	Yeah, sorta 
16:12	Remco	It's a stream 
16:12	kanzure	right 
16:13	kanzure	So I do not see how the AJAX commands have to come into with this idea of the 'stream' via SSE 
16:13	Remco	The SSE stream is one way only 
16:13	kanzure	would I use XmlHttpRequest to send data to other pages on the server, and thereby update the stream-page that is still loading on the lcient's end? 
16:13	kanzure	oh 
16:13	Remco	Only the server can send data over it 
16:13	kanzure	SSE stream is only server -> client ? 
16:14	Remco	That is exactly what you do 
16:14	kanzure	Excellent 
16:15	kanzure	if the SSE stream is only server->client, then how does the server know when the SSE connection is initiated or closed? 
16:16	Remco	That's the hard part 
16:16	kanzure	So I just have to include some checks on the server to every-once-and-a-while kill latent clients 
16:16	kanzure	'erm, connections to those clients 
16:16	kanzure	i.e., if no polled XmlHttpRequest in the last two minutes, the user is offline 
16:16	Remco	That would work 
16:17	kanzure	And the data that the client receives from the SSE stream, would be directly sent to my javascript-based plugin for processing and doing whatever I wish? 
16:18	kanzure	(plugin/widget, I don't know which one the Opera community prefers to call it) 
16:18	Remco	It gets in as 'click' events on your page/widget 
16:18	Remco	Similar to that 
16:18	Remco	http://oxzone.opera.com:8088/script.js
16:18	Remco	Check the onload section 
16:19	kanzure	Aha 
16:20	Remco	It's very simple to use 
16:22	kanzure	Remco, how much different would it be for me to make this a widget-based plugin, or something that would not appear in the 'web page panel' ? I am sure there is some documentation I can go check, but you seem friendly enough 
16:24	Remco	I think the difficult part for you is how to share the tabs/urls 
16:24	Remco	A widget is easy to create, just like the server app 
16:26	Remco	Using the widget as a way to check off urls you've visited is the easiest 
16:26	kanzure	Sharing the tabs and URLs would just be maybe a keypress away 
16:27	Remco	Add them to a list, then when somebody checked it they press a button on the widget and everybody knows they don't have to check it again 
16:29	kanzure	yeah 
16:30	kanzure	so maybe there would be (1) tab coloring- bold if nobody has seen it, gray if everybody has seen it, and then italicized if only somebody else has seen it, and then maybe (2) a quick little key to share the tab or new link (actually, I think any type of content should be shareable), and (3) a few buttons to synchronize the sessions, as well as to "go asynchronous" (so that we are not all stuck together on the same browsing session, even though this is not the same as screensharing or sessionsharing as some browsers do, yes, I know) 
16:33	Remco	1) You can't give the tab another colour inside Opera, you'll have to do that inside the widget 2) A custom button will do 3) Those can be on the widget 
16:33	Remco	http://webtoman.com/opera/custom/custom_buttons.php
16:34	Remco	Check the tinyurl button from there 
16:34	Remco	It's that easy to send an url somewhere 
16:34	kanzure	Ah, cool. That should be easy enough .. the buttons could just be on the sidebar, maybe to the left of my "Windows" list 
16:34	kanzure	really really simple 
16:34	kanzure	hehe 
16:38	Remco	It will just take some time to get everything together