For V4, it may be interesting to add some tuple exports to the Journal as well... Let's discuss it next time we bump into each other on IRC. -walter <div class="gmail_quote">On Mon, Jun 22, 2009 at 10:56 PM, Benjamin M. Schwartz <<a href="mailto:bmschwar@fas.harvard.edu">bmschwar@fas.harvard.edu</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 SharedTextDemo-3 is available at <a href="http://dev.laptop.org/%7Ebemasc/SharedTextDemo-3.xo" target="_blank">http://dev.laptop.org/~bemasc/SharedTextDemo-3.xo</a> This version introduces saving to and loading from the Journal. The contents of the textbox are saved to the Journal, and loaded back in when you relaunch the program. This may not sound like a very impressive feature, but consider the source code of the activity (in its entirety): """ from groupthink import sugar_tools, gtk_tools import sugar class SharedTextDemoActivity(sugar_tools.GroupActivity): def initialize_display(self): self.cloud.textview = gtk_tools.SharedTextView() return self.cloud.textview """ The self.cloud object takes care not only of sharing the TextView over the network, live, but also of serializing it to disk on save, and deserializing it on load. At 6 lines of code, this system is finally approaching a level of boilerplate I would consider acceptable for users to build their own activities.* In addition to working Journal persistence, this version also adds (very simple) wait screens. With wait screens, the user is not left at the pulsing activity icon during slow actions, like loading a large journal entry or joining a shared session. Instead, the activity displays a message informing the user of its current status as soon as possible after launch. Naturally, both automatic load/save and wait screens are available to any activity using Groupthink, not just SharedTextDemo. - --Ben *: There is admittedly a tradeoff here between flexibility and magic. self.cloud, providing magic load/save and sharing, will only accept objects of appropriate type, drawn from the groupthink library. This means that users must code with an understanding of the types of the objects they are using. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.11 (GNU/Linux) iEYEARECAAYFAkpARGYACgkQUJT6e6HFtqQI9ACeNunokI+4g8V6cT8crPpLi6lf BYsAn35d5fFxGfVfifzpjQQQbTB154aI =OnVL -----END PGP SIGNATURE----- _______________________________________________ Sugar-devel mailing list <a href="mailto:Sugar-devel@lists.sugarlabs.org">Sugar-devel@lists.sugarlabs.org</a> <a href="http://lists.sugarlabs.org/listinfo/sugar-devel" target="_blank">http://lists.sugarlabs.org/listinfo/sugar-devel</a> </blockquote></div> -- Walter Bender Sugar Labs <a href="http://www.sugarlabs.org">http://www.sugarlabs.org</a>