Files
ddidderr 88cc13871c feat(apprt-gtk): port the GTK4/libadwaita app runtime
Ports ZIG/src/apprt/gtk into ghostty-apprt-gtk: every GObject class
(application, window, tab, split tree, surface + scrolled window,
child-exited banner, search/key-state/resize overlays, command palette,
global shortcuts, all dialogs, config wrapper) as glib subclasses with
the same GType names, properties, signals and template children; GDK
key translation; X11 and Wayland window-protocol helpers (blur, CSD,
quick terminal via gtk4-layer-shell); single-instance D-Bus IPC;
gsettings; cgroup scope creation.

build.rs compiles Ghostty's blueprints with blueprint-compiler and
bundles UI, CSS and icons into a gresource, as Ghostty's build does.

The core is not ported yet, so the crate defines the boundary it needs
in src/core.rs (CoreApp, CoreSurface, RtApp, RtSurface, Waker); the
spec is in docs/rewrite/notes/ghostty-apprt-gtk.md. ghostty-core will
implement these traits (the crate no longer depends on core to avoid a
cycle). examples/demo.rs runs the app with a dummy core that clears the
GLArea; it launches on Wayland without GTK criticals.

Stubs/open items: toggle_visibility, float_window, secure_input and
close_all_windows return false; inspector is a no-op; X11/Wayland
protocol code is untested against real compositors; gtk4-rs doesn't
expose the GLArea framebuffer id, so the renderer must query it.

Also registers ghostty-apprt and ghostty-cli in workspace.dependencies.

Test Plan:
- cargo test -p ghostty-apprt-gtk (36 tests)
- DEMO_QUIT_AFTER_MS=3000 cargo run -p ghostty-apprt-gtk --example demo
2026-10-11 22:57:15 +02:00

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using Gtk 4.0;
using Adw 1;
template $GhosttySplitTree: Box {
notify::tree => $notify_tree();
orientation: vertical;
Adw.Bin tree_bin {
visible: bind template.has-surfaces;
hexpand: true;
vexpand: true;
}
// This could be a lot more visually pleasing but in practice this doesn't
// ever happen at the time of writing this comment. A surface-less split
// tree always closes its parent.
Label {
visible: bind template.has-surfaces inverted;
// Purposely not localized currently because this shouldn't really
// ever appear. When we have a situation it does appear, we may want
// to change the styling and text so I don't want to burden localizers
// to handle this yet.
label: "No surfaces.";
}
}