Franco --
On Tue, Apr 28, 2009 at 11:22 PM, William Stein <wst...@gmail.com> wrote: > > On Tue, Apr 28, 2009 at 1:45 PM, Franco Saliola <sali...@gmail.com> wrote: >> On Mon, Apr 27, 2009 at 9:07 PM, William Stein <wst...@gmail.com> wrote: >>> >>> On Mon, Apr 27, 2009 at 11:45 AM, Jason Grout >>> <jason-s...@creativetrax.com> wrote: >>>> >>>> William Stein wrote: >>>>> On Mon, Apr 27, 2009 at 11:29 AM, kcrisman <kcris...@gmail.com> wrote: >>>>>> Just as a postscript, I was really glad to have the autosave a few >>>>>> minute ago, where I nearly deleted an entire lecture's worth of notes >>>>>> and computations which I hadn't saved, by accidentally brushing >>>>>> against a browser shortcut to a "favorites" page on the wrong window. >>>>>> (This could happen with "reload" or other shortcuts, too, I suspect.) >>>>>> When I used the browser "back" button, I had literally nothing, but >>>>>> the autosave had captured my previous revision! >>>>> >>>>> You could have just pressed reload and you would have had your >>>>> worksheet back entirely. It was still sitting there on the server in >>>>> RAM. Never use the back button with the sage notebook, unless you >>>>> immediately press refresh. >>>>> >>>> >>>> Tom or some other javascript ninja: >>>> >>>> Isn't there some sort of javascript that disables the back button? >>>> That's a common problem in web applications, and I'd be very surprised >>>> if it isn't a solved problem already. >>>> >>>> Jason >>>> >>> >>> Not, there is no javascript to do that. Also, disabling the back >>> button is irrelevant to the above problem, which would only have been >>> prevented by disabling being able to leave the page by clicking on a >>> favorites. There is javascript to attempt to prevent users from >>> leaving pages -- lots of spam sites use it. Of course it doesn't work >>> well though, and is often extremely annoying. >> >> I am using GMail. I hit reply. I typed this. Now I am going to hit the >> browser's back button... >> >> I'm still here. So Google can do it. > > They did not disable the back button. They are calling a javascript > function on leaving the page, which could be via the back button, > clicking a link, etc. The Sage notebook could also popup a dialog when > you try to leave a worksheet page. Right, sorry. I misunderstood and didn't realize that the goal was to disable the back button. I think it might be a good idea to pop-up a dialog when one tries to leave a worksheet if it hasn't been saved. Franco -- --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
