mumble-voip/mumble

Add keyboard maximize shortcut

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#6871 opened on Jul 14, 2025

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clientfeature-requestgood first issueui

Description

Context

I am trying to run Mumble on my Steam Deck in Game Mode (Valve's Gamescope Wayland compositor). Everything is "fullscreen" by default in the sense that you only see one window at a time, but it stretches windows to fit the screen at the size they are, resulting in small windows looking a bit low quality. This can be worked around in some programs like OBS by using the fullscreen keybind (F11 for OBS) which then makes it fit to the detected resolution instead. The resolution can be set for each game/application in Game Mode, but there is no way to "maximize" a window, unfortunately. If there were a keyboard shortcut I could bind it to buttons on a gamepad in Steam Input.

Description

I would like to see default or at least optional keybinds/shortcuts/hotkeys for fullscreening the Mumble window.

Mumble component

Client

OS-specific?

No

Additional information

An alternative could be a special launch option for fullscreen, maybe.

Contributor guide

Tech stack
cpp
Domain
desktop
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Basic C++ knowledgeFamiliarity with Qt framework
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60
Research direction
Examine the Mumble client codebase for existing shortcut handling, likely in src/mumble/MainWindow.cpp or a dedicated ShortcutHandler class. Check how fullscreen is currently toggled and replicate the pattern for a configurable keyboard shortcut. Review comments in the issue for any additional user preferences.