Re: Save on losing focus in Emacs

[Sergey Pariev]

Thanks to all you guys for the insightful responses. I'd like to
apologize if my example was unclear - English is not my native
language, so it could easily be.
Anyway, I'm think I'll try to setup frequent enough autosave to get
behaviour I need. The other ways looks too unpredictable, and, given
that I want it to work both at home (on Linux) and at work ( on
Windoze) :) , that's too much variables for me.

Regards, Sergey.

Tassilo Horn        :
> Tim X <timx@nospam.dev.null> writes:
>
> Hi Tim,
>
> > However, two functions which may be useful are visible-frame-list and
> > filtered-frame-list. To make use of these, I think you would dneed to
> > use run-with -idle-timer. Yo could possibly define a function that
> > looks to see if visible-frame-list returns anything. If it doesn't,
> > then save any buffers with unsaved changes.
>
> One problem might be that the timer has to run very often to save
> immediately after losing focus.
>
> > The problem with this is that if you have a big enough display, you
> > may have both your emacs frame and some other application both
> > 'visible', but focus is in the other application. In which case, this
> > wouldn't work.
>
> Hm, I use a tiling window manager, so most of the time all frames are
> visible unless they're on another workspace.
>
> > Alternatively, you might be able to use mouse-position to determine
> > when the mouse is not in an emacs frame - the docs don't seem very
> > clear on this and you may need to experiment to see what this function
> > actually returns if it is called when the mouse focus is on another
> > app. Its likely emacs will report the last frame the mouse was focused
> > on.
>
> I don't use a mouse frequently. Most of the time the pointer is in a
> corner of the screen.
>
> > P.S. I do find the OPs example a bit odd. I've used Emacs to develop with 
> > for
> > years and often need to switch to a browser or some other app and I've never
> > ever lost any work.
>
> You got him wrong. Let's assume you edit a html-page in emacs and switch
> to the browser to view you changes. But, damn, you forgot to save the
> buffer, so you have to switch back to emacs, `C-x C-s' and switch back
> to the browser and refresh again. If it had saved your changes
> automatically when losing focus, that would not be needed.
>
> Bye,
> Tassilo
> --
> Chuck Norris sleeps with a pillow under his gun.