metadata: Add session modes

[PhilDevProg]

This adds the session modes user, lock-screen and unlock-dialog to the metadata.json file making the extension operable on the lock screen and in the unlock dialog. See https://gjs.guide/extensions/topics/session-modes.html#example-usage I also tried to add gdm but it didn't work.

[PhilDevProg]

Great find! This is exactly what's needed to fix the issue with screensaver in #36 :+1:

Also, I've found a way to get it working with GDM - the extension needs to be installed and enabled as a machine-wide extension in order for it to show up on login screen: https://help.gnome.org/admin/system-admin-guide/stable/extensions-enable.html.en. Once I'll have some time, I'll add another section to README with instructions and maybe a bash script to do all that the easy way.

Hmm, that doesn't work for me... The extension doesn't even show up in the Extensions app... Does it work for you?

[nick-shmyrev]

So far, I've only tried this in Fedora 37, but it did work for me. What I did:

1. I installed the extension into /usr/share/gnome-shell/extensions dir, so that the .zip file contents ended up at this path: /usr/share/gnome-shell/extensions/improvedosk@nick-shmyrev.dev/.
2. I then followed the 1st step from here. In my case, there already was a user profile, so I didn't have to do anything.
3. Then I followed the 2nd step from here. I created a 00-extensions file in /etc/dconf/db/local.d/ dir, and added the following lines to that file:

   [org/gnome/shell]
   # List all extensions that you want to have enabled for all users
   enabled-extensions=['improvedosk@nick-shmyrev.dev']

4. Then I ran dconf update in the terminal, and rebooted.

Once I got to the login screen, Extended OSK showed up. It also showed up in the list of installed extensions at https://extensions.gnome.org/local/, however since it's now a system extension, there was no button to uninstall it.

[PhilDevProg]

Hmm, I did the same on Fedora 37... I'll redo it later.

[PhilDevProg]

@nick-shmyrev I tried again by completely following your guide but the extension still doesn't show up on GDM or in the Extensions app...

[nick-shmyrev]

@PhilDevProg Hm, that's weird...

A few ideas of what might've gone wrong:

• I noticed when I'm tinkering with an extension in a VM, Gnome would sometimes disable user extensions due to some errors. Could it be the case for you too? You can run gsettings set org.gnome.shell disable-user-extensions false in terminal to re-enable user extensions.
• Also, I believe I've got it running even without this, but just in case, make sure you remove the regular user version, installed under ~/.local/share/gnome-shell/extensions, then reboot/relog.
• Perhaps bumping up the version in metadata.json might fix the issue for you?

Finally, as a last resort, here's a script that hopefully would go through the whole installation process for you. Full disclosure: I only wrote the pseudocode for it, fed that to ChatGPT, then tweaked a few lines here and there. It did work in a Fedora 37 VM, but I'd be extra careful using it on a live device.

#!/bin/bash

zip_filename="improvedosk@nick-shmyrev.dev.shell-extension.zip"

# Check if "improvedosk@nick-shmyrev.dev.shell-extension.zip" exists in the current directory
if [ ! -f "$zip_filename" ]; then
    echo "$zip_filename file not found, exiting..."
    exit
fi

# Extract .zip into "/usr/share/gnome-shell/extensions/" directory
sudo unzip -o "$zip_filename" -d /usr/share/gnome-shell/extensions/improvedosk@nick-shmyrev.dev/

# Check if "user" file exists in "/etc/dconf/profile/" directory
if [ ! -f /etc/dconf/profile/user ]; then
    # If "user" file doesn't exist, create it
    sudo touch /etc/dconf/profile/user
fi

# Check if "user" file has line "user-db:user"
if ! grep -q "^user-db:user$" /etc/dconf/profile/user; then
    # If "user" file doesn't have line "user-db:user", add it to file
    echo "user-db:user" | sudo tee -a /etc/dconf/profile/user > /dev/null
fi

# Check if "user" file has line "system-db:local"
if ! grep -q "^system-db:local$" /etc/dconf/profile/user; then
    # If "user" file doesn't have line "system-db:local", add it to file
    echo "system-db:local" | sudo tee -a /etc/dconf/profile/user > /dev/null
fi

# Check if "00-extensions" file exists in "/etc/dconf/db/local.d/" directory
if [ ! -f /etc/dconf/db/local.d/00-extensions ]; then
    # If "00-extensions" file doesn't exist, create it
    sudo touch /etc/dconf/db/local.d/00-extensions

    # Add "[org/gnome/shell]" line to the top of the file 
    echo "[org/gnome/shell]" | sudo tee /etc/dconf/db/local.d/00-extensions > /dev/null

fi

# Check if enabled-extensions=[ line exists in 00-extensions file 
if grep -q "enabled-extensions=\[" "/etc/dconf/db/local.d/00-extensions"; then 
    # If enabled-extensions=[ line exists, but improvedosk@nick-shmyrev.dev is not included,
    # add it to the line starting with enabled-extensions=[ right after enabled-extensions=[
    sudo sed -i '/enabled-extensions=\[/ s/\]/, \x27improvedosk@nick-shmyrev.dev\x27\]/' /etc/dconf/db/local.d/00-extensions  
else  
    # If enabled-extension=[ line does not exist, add enabled-extension=[improvedosk@nick-shmyrev.dev] to the end of the file.  
    echo "enabled-extensions=['improvedosk@nick-shmyrev.dev']" | sudo tee --append /etc/dconf/db/local.d/00-extensions > /dev/null  
fi 

# Update dconf database with new settings 
sudo dconf update

echo "$zip_filename installed as a system-wide extension. Please reboot to apply changes."

[nick-shmyrev]

Another thing worth trying is enabling "Screen Keyboard" in Accessibility Options in upper right corner on Login screen.

[PhilDevProg]

Now it's installed! Thank you, but it still doesn't work on GDM... I also tried activating the osk in the accessibility menu but I just get the normal OSK from GNOME.

[nick-shmyrev]

I've made a separate issue to further discuss this problem here: https://github.com/nick-shmyrev/improved-osk-gnome-ext/issues/41