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// Take a look at the license at the top of the repository in the LICENSE file.
#![allow(clippy::needless_doctest_main)]
// rustdoc-stripper-ignore-next
//! Module containing infrastructure for subclassing `GObject`s and registering boxed types.
//!
//! # Example for registering a `glib::Object` subclass
//!
//! The following code implements a subclass of `glib::Object` with a
//! string-typed "name" property.
//!
//! ```rust
//! use glib::prelude::*;
//! use glib::subclass;
//! use glib::subclass::prelude::*;
//! use glib::{Variant, VariantType};
//!
//! use std::cell::{Cell, RefCell};
//!
//! #[derive(Debug, Eq, PartialEq, Clone, Copy, glib::Enum)]
//! #[repr(u32)]
//! // type_name: GType name of the enum (mandatory)
//! #[enum_type(name = "SimpleObjectAnimal")]
//! enum Animal {
//! Goat = 0,
//! #[enum_value(name = "The Dog")]
//! Dog = 1,
//! // name: the name of the GEnumValue (optional), default to the enum name in CamelCase
//! // nick: the nick of the GEnumValue (optional), default to the enum name in kebab-case
//! #[enum_value(name = "The Cat", nick = "chat")]
//! Cat = 2,
//! }
//!
//! impl Default for Animal {
//! fn default() -> Self {
//! Animal::Goat
//! }
//! }
//!
//! #[glib::flags(name = "MyFlags")]
//! enum MyFlags {
//! #[flags_value(name = "Flag A", nick = "nick-a")]
//! A = 0b00000001,
//! #[flags_value(name = "Flag B")]
//! B = 0b00000010,
//! #[flags_value(skip)]
//! AB = Self::A.bits() | Self::B.bits(),
//! C = 0b00000100,
//! }
//!
//! impl Default for MyFlags {
//! fn default() -> Self {
//! MyFlags::A
//! }
//! }
//!
//! mod imp {
//! use super::*;
//!
//! // This is the struct containing all state carried with
//! // the new type. Generally this has to make use of
//! // interior mutability.
//! // If it implements the `Default` trait, then `Self::default()`
//! // will be called every time a new instance is created.
//! #[derive(Default)]
//! pub struct SimpleObject {
//! name: RefCell<Option<String>>,
//! animal: Cell<Animal>,
//! flags: Cell<MyFlags>,
//! variant: RefCell<Option<Variant>>,
//! }
//!
//! // ObjectSubclass is the trait that defines the new type and
//! // contains all information needed by the GObject type system,
//! // including the new type's name, parent type, etc.
//! // If you do not want to implement `Default`, you can provide
//! // a `new()` method.
//! #[glib::object_subclass]
//! impl ObjectSubclass for SimpleObject {
//! // This type name must be unique per process.
//! const NAME: &'static str = "SimpleObject";
//!
//! type Type = super::SimpleObject;
//!
//! // The parent type this one is inheriting from.
//! // Optional, if not specified it defaults to `glib::Object`
//! type ParentType = glib::Object;
//!
//! // Interfaces this type implements.
//! // Optional, if not specified it defaults to `()`
//! type Interfaces = ();
//! }
//!
//! // Trait that is used to override virtual methods of glib::Object.
//! impl ObjectImpl for SimpleObject {
//! // Called once in the very beginning to list all properties of this class.
//! fn properties() -> &'static [glib::ParamSpec] {
//! use once_cell::sync::Lazy;
//! static PROPERTIES: Lazy<Vec<glib::ParamSpec>> = Lazy::new(|| {
//! vec![
//! glib::ParamSpecString::new(
//! "name",
//! "Name",
//! "Name of this object",
//! None,
//! glib::ParamFlags::READWRITE,
//! ),
//! glib::ParamSpecEnum::new(
//! "animal",
//! "Animal",
//! "Animal",
//! Animal::static_type(),
//! Animal::default() as i32,
//! glib::ParamFlags::READWRITE,
//! ),
//! glib::ParamSpecFlags::new(
//! "flags",
//! "Flags",
//! "Flags",
//! MyFlags::static_type(),
//! MyFlags::default().bits(),
//! glib::ParamFlags::READWRITE,
//! ),
//! glib::ParamSpecVariant::new(
//! "variant",
//! "Variant",
//! "Variant",
//! glib::VariantTy::ANY,
//! None,
//! glib::ParamFlags::READWRITE,
//! ),
//! ]
//! });
//!
//! PROPERTIES.as_ref()
//! }
//!
//! // Called whenever a property is set on this instance. The id
//! // is the same as the index of the property in the PROPERTIES array.
//! fn set_property(&self, _obj: &Self::Type, _id: usize, value: &glib::Value, pspec: &glib::ParamSpec) {
//! match pspec.name() {
//! "name" => {
//! let name = value
//! .get()
//! .expect("type conformity checked by `Object::set_property`");
//! self.name.replace(name);
//! },
//! "animal" => {
//! let animal = value
//! .get()
//! .expect("type conformity checked by `Object::set_property`");
//! self.animal.replace(animal);
//! },
//! "flags" => {
//! let flags = value
//! .get()
//! .expect("type conformity checked by `Object::set_property`");
//! self.flags.replace(flags);
//! },
//! "variant" => {
//! let variant = value
//! .get()
//! .expect("type conformity checked by `Object::set_property`");
//! self.variant.replace(variant);
//! },
//! _ => unimplemented!(),
//! }
//! }
//!
//! // Called whenever a property is retrieved from this instance. The id
//! // is the same as the index of the property in the PROPERTIES array.
//! fn property(&self, _obj: &Self::Type, _id: usize, pspec: &glib::ParamSpec) -> glib::Value {
//! match pspec.name() {
//! "name" => self.name.borrow().to_value(),
//! "animal" => self.animal.get().to_value(),
//! "flags" => self.flags.get().to_value(),
//! "variant" => self.variant.borrow().to_value(),
//! _ => unimplemented!(),
//! }
//! }
//!
//! // Called right after construction of the instance.
//! fn constructed(&self, obj: &Self::Type) {
//! // Chain up to the parent type's implementation of this virtual
//! // method.
//! self.parent_constructed(obj);
//!
//! // And here we could do our own initialization.
//! }
//! }
//! }
//!
//! // Optionally, define a wrapper type to make it more ergonomic to use from Rust
//! glib::wrapper! {
//! pub struct SimpleObject(ObjectSubclass<imp::SimpleObject>);
//! }
//!
//! impl SimpleObject {
//! // Create an object instance of the new type.
//! pub fn new() -> Self {
//! glib::Object::new(&[]).unwrap()
//! }
//! }
//!
//! pub fn main() {
//! let obj = SimpleObject::new();
//!
//! // Get the name property and change its value.
//! assert_eq!(obj.property::<Option<String>>("name"), None);
//! obj.set_property("name", "test");
//! assert_eq!(&obj.property::<String>("name"), "test");
//!
//! assert_eq!(obj.property::<Animal>("animal"), Animal::Goat);
//! obj.set_property("animal", Animal::Cat);
//! assert_eq!(obj.property::<Animal>("animal"), Animal::Cat);
//!
//! assert_eq!(obj.property::<MyFlags>("flags"), MyFlags::A);
//! obj.set_property("flags", MyFlags::B);
//! assert_eq!(obj.property::<MyFlags>("flags"), MyFlags::B);
//! }
//! ```
//!
//! # Example for registering a boxed type for a Rust struct
//!
//! The following code boxed type for a tuple struct around `String` and uses it in combination
//! with `glib::Value`.
//!
//! ```rust
//! use glib::prelude::*;
//! use glib::subclass;
//! use glib::subclass::prelude::*;
//!
//! #[derive(Clone, Debug, PartialEq, Eq, glib::Boxed)]
//! #[boxed_type(name = "MyBoxed")]
//! struct MyBoxed(String);
//!
//! pub fn main() {
//! assert!(MyBoxed::static_type().is_valid());
//!
//! let b = MyBoxed(String::from("abc"));
//! let v = b.to_value();
//! let b2 = v.get::<&MyBoxed>().unwrap();
//! assert_eq!(&b, b2);
//! }
//! ```
pub mod basic;
#[macro_use]
pub mod types;
#[macro_use]
pub mod interface;
#[macro_use]
pub mod object;
#[macro_use]
pub mod boxed;
pub mod shared;
pub mod signal;
mod object_impl_ref;
pub use object_impl_ref::{ObjectImplRef, ObjectImplWeakRef};
pub mod prelude {
// rustdoc-stripper-ignore-next
//! Prelude that re-exports all important traits from this crate.
pub use super::boxed::BoxedType;
pub use super::interface::{ObjectInterface, ObjectInterfaceExt, ObjectInterfaceType};
pub use super::object::{ObjectClassSubclassExt, ObjectImpl, ObjectImplExt};
pub use super::shared::{RefCounted, SharedType};
pub use super::types::{
ClassStruct, InstanceStruct, IsImplementable, IsSubclassable, IsSubclassableExt,
ObjectSubclass, ObjectSubclassExt, ObjectSubclassIsExt, ObjectSubclassType,
};
}
pub use self::boxed::register_boxed_type;
pub use self::interface::register_interface;
pub use self::signal::{
Signal, SignalClassHandlerToken, SignalId, SignalInvocationHint, SignalQuery, SignalType,
};
pub use self::types::{register_type, InitializingObject, InitializingType, TypeData};