Aggressive window refresh loop and focus-stealing on Windows

[ZFordDev]

Description

A user reported an aggressive refresh loop after installing Glint. The application rapidly toggles between active and inactive states, causing heavy window flicker and stealing focus.

Reproduction & Environment Details

• App Version: v1.0.1
• OS: Windows 10 (Primary suspect) or Windows 11
• Hardware Profile: Legacy desktop hardware (Dell Optiplex SFF, ~8th Gen Intel CPU or older, DDR4 RAM, potential dedicated low-profile GPU)
• Status: Unconfirmed / Needs reproduction

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Step 1: Reproduction Strategy

Because the report contains hardware and OS uncertainties, we should systematically isolate the behavior:

1. Virtual Machine Testing:

• Spin up a clean Windows 10 VM (v22H2) and test v1.0.1 release build.
• Spin up a clean Windows 11 VM (v23H2/v24H2) and test v1.0.1 release build.

2. Graphics/Hardware Acceleration:

• Test with hardware acceleration enabled vs. disabled (to account for older integrated iGPUs/low-profile GPUs).

3. Focus & Event Triggers:

• Check auto-update logic, interval polling, or tray-icon focus handlers that might be continuously triggering win.focus() or window re-renders.

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Potential Root Causes to Inspect

• Focus Loops: An explicit focus call (e.g., win.show() or win.focus()) bound to an aggressive interval or event listener (e.g., auto-updater, webview ping, network status polling).
• GPU Rendering / Hardware Acceleration: Older GPU drivers failing to handle hardware acceleration or window transparency/effects (e.g., acrylic/blur behind), triggering a constant fallback redraw loop.
• Electron / Framework Window State: Event listener collision between blur and focus events causing infinite toggling.

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Needed Action

• Attempt VM reproduction on Windows 10.
• Verify if disabling GPU hardware acceleration mitigates the flashing on low-spec environments.
• Reply to user requesting a log output or specific GPU/OS build if reproducible steps cannot be found.

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