Font chooser lags a lot

[soumyaDghosh]

The font-chooser portal in the snap is kind of unusable and takes long to load.

Kooha-2024-01-31-12-47-45.mp4

[sergio-costas]

I compared it with the .deb version, and it seems to happen the same: trying to move the vertical scroll is glitchy. Maybe this should be reported upstream...

[soumyaDghosh]

I tried to look into the source-code... and probably this is the culprit.

https://gitlab.gnome.org/GNOME/gnome-text-editor/-/blob/main/src/editor-preferences-font.c#L74

This GtkFontChooserDialog is deprecated and replaced with GtkFontDialog.

[sergio-costas]

I see... maybe it is. Changing to GtkFontDialog seems not very complex, just creating one, calling gtk_font_dialog_choose_font(), and in the callback, get the PangoFontDescription object and use toString.

[soumyaDghosh]

@sergio-costas https://gitlab.gnome.org/GNOME/gnome-text-editor/-/merge_requests/141#note_1992946

this should fix the lag!

[sergio-costas]

Great! I'll prepare a patch for this. Thanks!

[sergio-costas]

I prepared a MR with that, but doesn't seem to fix the problem... Can you test it? #23