First, this commit modifies libghostty to use a single unified action
dispatch system based on a tagged union versus the one-off callback
system that was previously in place. This change simplifies the code on
both the core and consumer sides of the library. Importantly, as we
introduce new actions, we can now maintain ABI compatibility so long as
our union size does not change (something I don't promise yet).
Second, this moves a lot more of the functions call on a surface into
the action system. This affects all apprts and continues the previous
work of introducing a more unified API for optional surface features.
The GLFW build has grown farther and farther in feature parity with GTK
on Linux. And on macOS, the GLFW build has been unstable (crashes) for
months.
I still find the GLFW build useful for testing some core terminal work,
but it is increasingly user-hostile in case someone just downloads the
project and does a `zig build`.
I keep GLFW as up to date as I can, but the features that are missing
are due to fundamental limitations:
- GLFW has no tabs, splits, etc. because it has no UI elements.
I am not interested in painting UI widgets from scratch.
- GLFW cannot support keyboard layouts robustly because it has no
hooks to detect keyboard layouts or functions to get keymaps.
- GLFW cannot support the Kitty keyboard protocol because the
key/char API is too high level and it provides no low-level
alternatives.
- GLFW crashes on macOS under certain scenarios (this is my problem).
I'm not interested in fixing it because the AppKit-based build
is highly recommended.
To build or run the GLFW build you must now explicitly pass in
`-Dapp-runtime=glfw` to `zig build`.
