On Fri, 17 Feb 2006 15:47:12 +0000 Aleksej Struk <[EMAIL PROTECTED]> babbled:
> > Hi all, > > I think of starting a new app/module for e17. Actually, I want to > write a desktop lock app/module. However, I still do not know what to > start from and what functionality to implement. > > My idea is to have a separate program, like KDE does, which will lock > the desktop. I think that it should behave as follows : > > 1. Create a new fullscreen window. > 2. Disable all keybindings. > 3. Disable all mouse bindings. > 4. disable window menu. > 5. disable a possibility to switch desktop > 6. something else... > > Unfortunately I do not know how to implement desktop locking and what to > start from. Actually I tried to investigate xlock program, but I a > little bit confused with it. If somebody knows something about desktop > locking,or can provide some refs to documentation, please write me. NB: this is from the view of doing an e17 module. you can create a fullscreen window using e_popup and then just fill it with some edje object. check the e_popup.h for api. you can create an input only window and grab the mouse and keyboard to that window alone - this way you have taken control of all input devices and sent their input to a particular window (see e_exebuf.c or e_winlist.c for examples). they both do this trick and ONLY process keybindings selectively themseleves, if they desire. now u have stolen they keybo9ard and mouse, overlayed the screen with a big popup (just use a very high layer like 10000 for the popup layer) so you can't see anything (remember - you probably want to go thru the list of all managers, then each container per manager, then each zone per container (each of these list their sub-components so u can just walk this list easily), you want to create a popup PER zone that exists and maybe only put a "blank" or "disabled" object on all zones except 1 where you will accept some unlock mechanism (for now i suggest you just put a button u press and wait for a signal from teh edje object when the thing is unlocked, also just handle the Escape key to abort)). now u have the basics of snarfing control of the screen - ALL screens (dont forget that - there may be multiple managers, multilple containers per manager and multiple zones per container), you have the NEXT stage - how do you unlock? well - u need a way to accept some authorization. youc an do this 2 ways. 1. traditional password entry - you will need a working entry box (in fact you can just do this yourself with key down events - see e_exebuf.c for an example) and just display "*" chars instead of what was actually typed (for texting you are going to want to see the thigns u type though). now u have a password - you will need to authenticate this using pam - this is where the nastiness comes in - dealing with pam. see entrance code :) 2. DIY userspace. don't use the users password but implement another system - the user can set a SPECIAL unlock password or pin # e stores it in its own files and just matches it. its much simpler than pam - and you will need a way for the user to SET it - but maybe this would be a good first cut (just open ~/.elockpw file thats a text file with your unlock/lock password). > regards > aleksej > > > ------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. Do you grep through log files > for problems? Stop! Download the new AJAX search engine that makes > searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 > _______________________________________________ > enlightenment-devel mailing list > enlightenment-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/enlightenment-devel > -- ------------- Codito, ergo sum - "I code, therefore I am" -------------- The Rasterman (Carsten Haitzler) [EMAIL PROTECTED] 裸好多 Tokyo, Japan (東京 日本) ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
