When loading game retroarch window closes and loses focus

[dafzor]

Description

When loading game retroarch window will close and lose focus until the game begins running at which point it will regain focus.

Some use cases where it causes problems:

• When loading a big game (compressed iso) it will seem retroarch has crashed with no indication that it's actually running without checking the task manager.
• When launching Retroarch from Steam's Big Picture and loading a game, slightly longer presses of the "A" button will be picked up by Big Picture when Retroarch window closes and cause Steam to launch a second instance of Retroarch making it look like Retroarch just restarted instead of loading the game all while the first instance has the game loaded but paused in a minimized window.

Expected behavior

When loading a game Retroarch will retain it's window and input focus while showinga loading animation/image until the actual game starts running.

Actual behavior

Retroarch window closes when loading a game only reopening when the game finishes loading.

Steps to reproduce the bug

1. Load a game in a compressed iso

Version/Commit

• RetroArch: Nightly 2017-03-01 / ec39604

Environment information

• OS: Windows 10 Pro x64
• GPU: Nvidia Geforce GTX 970 / Drivers: 376.33
• Retroarch Config: https://gist.github.com/dafzor/33cfd0e3c91c05b42fa2db4cdf5acd20

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[orbea]

This is a result of switching from the frontend context to the core context, I am not sure anything can be done about this. The focus problems should be handled by the desktop environment / window manager and is not a RetroArch issue.