Reproduction is to resize the window to it's minimum width and then
run `ghostty +list-themes`. Ghostty will crash because Zig for loops
don't like having a range where the end is smaller than the start.
Previously, once we had one click registered, shift+click would always
go into selection extend mode. This is not the behavior we want, since
we want shift+double/triple click to work in alternate screens.
This commit changes the behavior so that we only extend the selection
after the multi-click interval has passed.
I see a lot of opportunity to improve this whole callback much more but
I don't want to risk introducing new bugs since this is a hard to test
area, so I'm going to leave it for now.
Because Zig does not fetch recursive dependencies when you run `zig build
--fetch` (see https://github.com/ziglang/zig/issues/20976) we need to do some
extra work to fetch everything that we actually need to build without Internet
access (such as when building a Nix package).
An example of this happening:
```
error: builder for '/nix/store/cx8qcwrhjmjxik2547fw99v5j6np5san-ghostty-0.1.0.drv' failed with exit code 1;
la/build/tmp.xgHOheUF7V/p/12208cfdda4d5fdbc81b0c44b82e4d6dba2d4a86bff644a153e026fdfc80f8469133/build.zig.zon:7:20: error: unable to discover remote git server capabilities: TemporaryNameServerFailure
> .url = "git+https://github.com/zigimg/zigimg#3a667bdb3d7f0955a5a51c8468eac83210c1439e",
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> /build/tmp.xgHOheUF7V/p/12208cfdda4d5fdbc81b0c44b82e4d6dba2d4a86bff644a153e026fdfc80f8469133/build.zig.zon:16:20: error: unable to discover remote git server capabilities: TemporaryNameServerFailure
> .url = "git+https://github.com/mitchellh/libxev#f6a672a78436d8efee1aa847a43a900ad773618b",
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
For full logs, run 'nix log /nix/store/cx8qcwrhjmjxik2547fw99v5j6np5san-ghostty-0.1.0.drv'.
```
To update this script, add any failing URLs with a line like this:
```
zig fetch <url>
```
Periodically old URLs may need to be cleaned out.
Hopefully when the Zig issue is fixed this script can be eliminated in favor
of a plain `zig build --fetch`.
This adds a "fancy" theme preview to the `+list-themes` CLI action.
By default, if the command is connected to a TTY, it will display the
fancy preview. If it is not connected to a TTY, or the user specifies
`--plain` on the command line, a simple list of themes will be printed
to stdout.
While in the preview `F1` or `?` will show a help screen.
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.
