Qt: Fix minimize and close bugs #8481

1. 
   adlawren commented at 8:56 pm on August 7, 2016: contributor

   Address items 1 and 2 of #8225:

   • Ensure the GUI closes when the “Minimize on close” window option is disabled, and the “Minimize to the tray instead of the taskbar” window option is enabled
   • Ensure the GUI minimizes to the taskbar when the “Minimize on close” window option is enabled, and the “Minimize to the tray instead of the taskbar” window option is disabled
2. Fix minimize and close bugs

   refs #8225
   
   To ensure the GUI closes when the "Minimize on close" window option is disabled, and the "Minimize to the tray instead of the taskbar" window option is enbaled, remove a check made against the "Minimize to the tray instead of the taskbar" value, made during GUI closure.
   
   To ensure the GUI minimizes to the taskbar when the "Minimize on close" window option is enabled, and the "Minimize to the tray instead of the taskbar" window option is disabled, minimize the GUI and ignore the closure event.

   05242e937d
3. MarcoFalke added the label GUI on Aug 7, 2016
4. 
   jonasschnelli commented at 7:22 am on August 9, 2016: contributor

   Thanks!

   Tested ACK https://github.com/bitcoin/bitcoin/pull/8481/commits/05242e937d3fc0144029ccf3b14f98662400dd60 on Ubuntu 15.04 and Windows 10. No change on OSX.

5. 
   laanwj commented at 1:22 pm on August 11, 2016: member

   utACK 05242e9
6. laanwj merged this on Aug 11, 2016
7. laanwj closed this on Aug 11, 2016

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8. laanwj referenced this in commit 0d0abcac1e on Aug 11, 2016
9. 
   luke-jr commented at 9:04 am on September 10, 2016: member

   Needs backport?
10. MarcoFalke referenced this in commit d9f0d4e073 on Sep 13, 2016
11. codablock referenced this in commit c95822c81e on Sep 19, 2017
12. codablock referenced this in commit 8fd650bfda on Dec 29, 2017
13. codablock referenced this in commit d5b5aeefe3 on Jan 8, 2018
14. andvgal referenced this in commit efc9386c83 on Jan 6, 2019
15. DrahtBot locked this on Sep 8, 2021

Contributors
adlawren jonasschnelli laanwj luke-jr

Labels
GUI