Support opening images directly with Frog

[Rayquaza01]

I would like to be able to open an image directly with Frog, either from CLI arguments or from the Open With menu in a GUI file manager.

ie, flatpak run com.github.tenderowl.frog image.png should open image.png in Frog directly.

[rwperrott]

I strongly second that, and also want optional CLI flags to:

• Tell it to accept image from clipboard, with no need to click any button.
• Not open its window, pass the OCR'd text directly to clipboard, then exit.

Frogs screenshot by Frog annoyingly does not call xfce4-screenshooter like standard hot keys do for Xfce, but rather it directly captures everything, which is WTF useless to me!

Xfce4-screenshooter allow me to capture either the Entire screen (all screens), the active window or a selected rectangular region, and can allow passing the image via a custom command via a temp file

Current workaround:

• Set up a custom action in xfce4-screenshooter to copy image from file to clipboard, then start Frog
sh -c 'xclip -selection clipboard -t image/png -i %f && /usr/bin/flatpak run --branch=stable --arch=x86_64 --command=frog com.github.tenderowl.frog'

1. Use a screenshot keyboard shortcut or a Xfce panel icon, to start Xfce4-screenshooter and get the snapshot
2. Select the custom action and click OK
3. Click "Paste image" button, on a newly started, or already started, Frog window; which should be automatable!
4. Copy the text; which should also be automatable!

Preferred Solution, for driving by xfce4-screenshooter:

1. Use a screenshot keyboard shortcut or a Xfce panel icon, to start Xfce4-screenshooter and get the snapshot
2. Select an earlier set-up "Custom Action", passing temp image filename to Frog, which tells it to read passed image file, with an optional flag to not open its window, store the OCR'd text to clipboard, then exit.