This allows removing a bunch of unwrap/expect calls.
However, my primary motive was to replace the cases where we used
Mux::get() == None to indicate that we were not on the main thread.
A separate API has been added to test for that explicitly rather than
implicitly.
This is a step towards making it Send+Sync.
I'm a little cagey about this in the long term, as there are some mux
operations that may technically require multiple fields to be locked for
their duration: allowing free-threaded access may introduce some subtle
(or not so subtle!) interleaving conditions where the overall mux state
is not yet consistent.
I'm thinking of prune_dead_windows kicking in while the mux is in the
middle of being manipulated.
I did try an initial pass of just moving everything under one lock, but
there is already quite a lot of mixed read/write access to different
aspects of the mux.
We'll see what bubbles up later!
reconciling causes gui windows to be created and allows for stuff like
this, that would otherwise fail because the gui window hadn't been
created yet.
```lua
local wezterm = require 'wezterm'
local mux = wezterm.mux
wezterm.on("gui-startup", function()
local tab, pane, window = mux.spawn_window{}
window:gui_window():set_inner_size(1200, 1200)
end)
return {
}
```
Allow iterating all windows at the mux layer.
windows allow iterating tabs.
Tabs allow iterating panes.
Versions of iteration that report additional information (like index,
active and positioning) are also added.
Panes can now reference their containing tab and window objects.
Tabs can now reference their containing window object.
refs: https://github.com/wez/wezterm/issues/1598 (sort of)
refs: https://github.com/wez/wezterm/issues/225
Previously, the mux layer had no internal understanding of titles other
than the Pane::get_title method to return state from a pane.
Users have asked for ways to explicitly set titles on windows and tabs,
so this commit is a step towards that.
The mux window and tab objects now store a title string.
The terminal layer now emits Alert::WindowTitleChanged when the window
title is changed via eg: OSC 0 or OSC 2.
The mux layer will respond to Alert::WindowTitleChanged by resolving the
window that corresponds to the source pane and amending its title.
The MuxWindow and MuxTab objects now provide accessor methods for the
title.
TabInformation (as used by format-tab-title and format-window-title) now
exposes the underlying window_id as well as tab_title and window_title.
The tab title can be changed via the lua MuxTab type, but there is not
currently an escape sequence associated with this.
The defaults for format-tab-title and format-window-title don't
currently consider these new title strings.
refs: https://github.com/wez/wezterm/issues/1598
The intent is to expose Mux related functions to lua, so `wezterm.mux`
will be that module table.
In order to test this out in the debug overlay, I realized that the
overlay was running functions in a different thread and didn't have
access to the mux, so this commit also tweaks the debug overlay repl to
execute the input in the main thread.
The result is that it is now possible to do
`wezterm.mux.active_workspace()` in the debug overlay to print the
active workspace name.
More functions will follow.
refs: https://github.com/wez/wezterm/issues/225
