Gsettings controls keyboard layouts
Both text input and key input (virtual-keyboard) work. Layout can change at runtime. Implemented the Polish language keyboard.
Not implemented: switching layouts from within the keyboard.
Builds on top of !24 (merged)
Closes #7 (closed)
Test by adding the Polish language to the language list:
gsettings set org.gnome.desktop.input-sources sources "[('xkb', 'us'), ('xkb', 'pl')]"
and then by switching between the languages, or by changing list contents:
# gsettings set org.gnome.desktop.input-sources current 0 # gsettings set org.gnome.desktop.input-sources current 1
pl layout will have the AltGr key displayed as ą7?, with two levels of alternative keys.
Can provide input both to IM-aware applications (GTK) and unaware ones (via virtual-keyboard).