Hide window on close is a common workflow for macOS apps. Users close the window, but the application is working in the background with opened document. If you want to go back, you just click app icon in the dock.

Expected Behavior

When user presses window Close button, the window is hidden (not minimized).

Current Behavior

When use presses window Close button, it closes the application.

Possible Solution

Add option in the preferences to enable described behaviour. I think we can use QWindow::hide() method.

Steps to Reproduce (for bugs)

Context

This will implement common macOS app workflow.

Your Environment

• KeePassXC 2.1.4
• Qt version (e.g. Qt 5.3):
• Compiler (e.g. Clang++3.6.0):
• Operating System and version: macOS Sierra