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gtk: introduce Zig bindings for GTK/GObject (#5560)

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`zig-gobject` is a set of GObject bindings that allow us to write
GTK-facing code in Zig instead of getting hands dirty with C. It's been
tested and refined in real-life applications and several GTK
contributors agree that it is a marked improvement over using the C API
directly, such as allowing method call syntax and avoiding many manual
`@ptrCast`s.

This PR doesn't actually contain any changes to our preexisting GTK code
— the migration process is intended to begin in chunks, firstly in
self-contained components (e.g. the header bar, overlays, etc.), and
then full-scale migration can begin when we remove non-Adwaita GTK
builds for 1.2. (After all, why port code that you'll remove later
either way?)
This commit is contained in:
Mitchell Hashimoto
2025-02-11 07:19:59 -08:00
committed by GitHub
parent a3e462bbba 843c714088
commit d87cf61d26
5 changed files with 36 additions and 3 deletions
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28
src/build/SharedDeps.zig
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@@ -430,9 +430,32 @@ pub fn add(
},
.gtk => {
const gobject = b.dependency("gobject", .{
.target = target,
.optimize = optimize,
});
const gobject_imports = .{
.{ "gobject", "gobject2" },
.{ "glib", "glib2" },
.{ "gtk", "gtk4" },
.{ "gdk", "gdk4" },
};
inline for (gobject_imports) |import| {
const name, const module = import;
step.root_module.addImport(name, gobject.module(module));
}
step.linkSystemLibrary2("gtk4", dynamic_link_opts);
if (self.config.adwaita) step.linkSystemLibrary2("libadwaita-1", dynamic_link_opts);
if (self.config.x11) step.linkSystemLibrary2("X11", dynamic_link_opts);
if (self.config.adwaita) {
step.linkSystemLibrary2("libadwaita-1", dynamic_link_opts);
step.root_module.addImport("adw", gobject.module("adw1"));
}
if (self.config.x11) {
step.linkSystemLibrary2("X11", dynamic_link_opts);
step.root_module.addImport("gdk_x11", gobject.module("gdkx114"));
}
if (self.config.wayland) {
const scanner = Scanner.create(b.dependency("zig_wayland", .{}), .{
@@ -460,6 +483,7 @@ pub fn add(
scanner.generate("org_kde_kwin_server_decoration_manager", 1);
step.root_module.addImport("wayland", wayland);
step.root_module.addImport("gdk_wayland", gobject.module("gdkwayland4"));
step.linkSystemLibrary2("wayland-client", dynamic_link_opts);
}