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Draft: Embedded terminal

Bruno Gonçalvesrequested to merge
bigbruno/nautilus:main into main

It's been quite a while since it was possible to use the built-in terminal extension in Nautilus. For some people, including myself, using a file manager without an embedded terminal is not practical. The terminal remains hidden and doesn't bother anyone, but pressing F4 provides the convenience of a terminal that follows the file manager's current directory.

I tried making minimal changes to the Nautilus code, just enough to embed a terminal that is pleasant to use.

This commit introduces an embedded terminal feature into the Nautilus window slot using the VTE GTK4 library.

Key changes:

  • Added vte as a dependency.
  • Created a new NautilusTerminalWidget.
  • Refactored NautilusWindowSlot layout to use a GtkPaned (vertical), placing the terminal in the bottom pane.
  • Added a toggle-terminal stateful GAction, triggered by the F4 key, to show/hide the terminal.
  • The terminal is lazily instantiated when first shown and starts in the slot current location.
  • Implemented two-way directory synchronization:
    • Changing directory via the terminal change-directory signal updates the Nautilus slots location.
    • Changing the Nautilus slots location property updates the terminals current directory.
  • Added focus handling:
    • Terminal grabs focus when shown via F4.
    • Content view regains focus when terminal is hidden.
    • Focus is managed during directory changes initiated from either Nautilus or the terminal to provide a smooth user experience.

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