Review Request 117091: Force the screen locker's greeter to show the password input field in case of immediateLock

[Wolfgang Bauer]

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https://git.reviewboard.kde.org/r/117091/
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(Updated April 24, 2014, 10:52 a.m.)


Review request for kde-workspace, Plasma and Aaron J. Seigo.


Changes
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use the global qApp* pointer for calling the method from the signal handler.


Bugs: 327947 and 329076
    http://bugs.kde.org/show_bug.cgi?id=327947
    http://bugs.kde.org/show_bug.cgi?id=329076


Repository: kde-workspace


Description
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If the screen locker is set to not require a password to unlock, it will not show the password input field even when the powermanagement settings suspend the system and are set to require a password after resume (when it was already running at that point).
This locks people out of their system.

This patch adds a signal handler for SIGUSR1 that switches the running greeter to immediateLock mode. The locker sends that signal to make sure the greeter shows the password input field when necessary.


Diffs (updated)
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  ksmserver/screenlocker/greeter/greeterapp.h 8b79188 
  ksmserver/screenlocker/greeter/greeterapp.cpp c5e2f85 
  ksmserver/screenlocker/greeter/main.cpp d898734 
  ksmserver/screenlocker/ksldapp.cpp 3dfcc9e 

Diff: https://git.reviewboard.kde.org/r/117091/diff/


Testing
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Disable "Require password after" in the screen locker settings (the default), set it to start after 1 min. (for easier testing).
Enable "Suspend session after" and set it to 2 minutes. (set the action to "Suspend", "Hibernate", or "Lock Screen", doesn't matter)
Make sure "Lock screen on resume" is enabled in the powermanagements "Advanced Options" (it is by default).

After 1 minute the screen locker kicks in, and doesn't require a password.
After 2 minutes the session gets suspended, hibernated or locked, and requires a password to resume.

Without this patch no password dialog is shown, the user cannot resume the session by entering the password.

With this patch this works: there is a password input field, the session is unlocked when the user enters the password.


Thanks,

Wolfgang Bauer

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