Fix Ubuntu dock icon not showing correctly #2275
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Set StartupWMClass to 'draw.io' to match the actual WM class used by the application. This fixes the dock icon showing as a gear instead of the draw.io icon on Ubuntu 24.04. Fixes jgraph#1745
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Summary
This PR fixes the Ubuntu dock icon showing as a gear icon instead of the draw.io icon on Ubuntu 24.04.
Problem
The
.desktopfile generated by electron-builder setsStartupWMClass=drawio, but the application actually usesdraw.ioas its WM class. This mismatch causes the dock to not recognize the running application and display a generic gear icon.Solution
Added
desktop.StartupWMClassconfiguration to the Linux build configs:electron-builder-linux-mac.json(for deb, rpm, AppImage)electron-builder-snap.json(for Snap)This sets
StartupWMClass=draw.ioto match the actual WM class used by the application.Testing
After this change, the
.desktopfile will contain:Which matches the output of:
Fixes #1745