On Tue, 10 Sep 2013 23:45:20 -0400 Robert Heller <hel...@deepsoft.com> said:
> At Wed, 11 Sep 2013 03:25:57 +0200 Enlightenment developer list > <enlightenment-devel@lists.sourceforge.net> wrote: > > > > > On Tue, Sep 10, 2013 at 7:45 PM, Robert Heller <hel...@deepsoft.com> wrote: > > > At Tue, 10 Sep 2013 17:51:38 +0100 Michael Blumenkrantz > > > <michael.blumenkra...@gmail.com> wrote: > > >> On Tue, 10 Sep 2013 12:34:21 -0400 > > >> Robert Heller <hel...@deepsoft.com> wrote: > > >> > > >> > I am in the process of modifying E17 (I want to add so additional > > >> > functionality to the file manager). One of the things I need to be > > >> > able to do is have a 'modal' dialog, that is a dislog box that grabs > > >> > the focus and causes the program (the file manager) to wait. I want > > >> > events to be processed, but I want psuedo code like this: > > >> > > > >> > dialog = make_dialog(...); > > >> > show(dialog); > > >> > wait_for(dialog); > > >> > > > >> > The 'wait_for()' call would not return until the OK button or Cancel > > >> > (close) button on the dialog has been clicked. It is not clear how to > > >> > do this -- the documentation does not seem to cover this case (or I > > >> > can't it in the documentation). > > >> > > > >> > Any pointers would be helpful. Thanks in advance. > > >> > > >> yeahhh you can't do that. > > >> > > >> what you CAN do is something like the > > >> uhh...modules/conf_theme/e_int_config_wallpaper.c dialog does. you set > > >> the parent dialog (though make sure you do this AFTER you show both > > >> dialogs or it won't work) to set up your modal: the first param is your > > >> intended modal, the second is the parent window which is getting > > >> blocked. then you can basically just wait for the modal to die and > > >> you'll know that there will be no events on the parent. > > >> > > >> I'll say this, however: we STRONGLY discourage the use of modal dialogs > > >> in e. unless you have a really good reason for it, I'm unlikely to > > >> accept any patches which introduce modal dialogs. > > > > > > Yes, I fully understand the 'evils' of modal dialogs, but there are times > > > when it is the only option. In this case I am interfacing to a library > > > that has a callback that wants some input (a passphrase) and I cannot > > > just return without the passphrase and I don't know (in advance) if the > > > passphrase is even needed or what the hint for the passphrase is (this > > > info gets passed into the callback). And the callback might be called > > > again if the passphrase is wrong. I may implement this with a subprocess, > > > but then the subprocess itself will need to have a modal dialog. I am > > > only interested a *local* type modal dialog. > > > > I did have exactly the same problem with all the stupid ssh library > > out there that where never designed to be integrated into a GUI. At > > the end, solution where tested in that order : > > - Use the library from a thread. > > - Implementation of ecore_coroutine, to be able to put a function in > > standby and go back to the main loop. > > - Use ssh binary and ecore_exe. > > - Implement a ssh library that does it right. > > > > I am now working on the fourth solution, all previous attemps resulted > > in failure. Take it as an hint on what you are trying to do and maybe > > jump directly to that solution. I have no idea what your library is > > doing, but I can tell you, it will be painful ! > > It was *easy* when I interfaced this library with Tcl/Tk. (Tcl/Tk handles > events and event loops differently -- one of the big advanges of a scripting > language.) The library is actually libgpgme. I *guess* I could fork a > Tcl/Tk script, except the dialog box that will pop up for the passphrase will > look totally out-of-place (won't be visually compatible with E). if you hope that in doing system() you can block and wait for the dialog and it will work... you will be wrong. :) -- ------------- Codito, ergo sum - "I code, therefore I am" -------------- The Rasterman (Carsten Haitzler) ras...@rasterman.com ------------------------------------------------------------------------------ How ServiceNow helps IT people transform IT departments: 1. Consolidate legacy IT systems to a single system of record for IT 2. Standardize and globalize service processes across IT 3. Implement zero-touch automation to replace manual, redundant tasks http://pubads.g.doubleclick.net/gampad/clk?id=51271111&iu=/4140/ostg.clktrk _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
