1#[macro_use]
2mod action;
3mod app;
4mod assets;
5mod color;
6mod element;
7mod elements;
8mod executor;
9mod geometry;
10mod image_cache;
11mod input;
12mod interactive;
13mod key_dispatch;
14mod keymap;
15mod platform;
16pub mod prelude;
17mod scene;
18mod style;
19mod styled;
20mod subscription;
21mod svg_renderer;
22mod taffy;
23#[cfg(any(test, feature = "test-support"))]
24mod test;
25mod text_system;
26mod util;
27mod view;
28mod window;
29
30mod private {
31 /// A mechanism for restricting implementations of a trait to only those in GPUI.
32 /// See: https://predr.ag/blog/definitive-guide-to-sealed-traits-in-rust/
33 pub trait Sealed {}
34}
35
36pub use action::*;
37pub use anyhow::Result;
38pub use app::*;
39pub use assets::*;
40pub use color::*;
41pub use ctor::ctor;
42pub use element::*;
43pub use elements::*;
44pub use executor::*;
45pub use geometry::*;
46pub use gpui2_macros::*;
47pub use image_cache::*;
48pub use input::*;
49pub use interactive::*;
50pub use key_dispatch::*;
51pub use keymap::*;
52pub use linkme;
53pub use platform::*;
54use private::Sealed;
55pub use refineable::*;
56pub use scene::*;
57pub use serde;
58pub use serde_derive;
59pub use serde_json;
60pub use smallvec;
61pub use smol::Timer;
62pub use style::*;
63pub use styled::*;
64pub use subscription::*;
65pub use svg_renderer::*;
66pub use taffy::{AvailableSpace, LayoutId};
67#[cfg(any(test, feature = "test-support"))]
68pub use test::*;
69pub use text_system::*;
70pub use util::arc_cow::ArcCow;
71pub use view::*;
72pub use window::*;
73
74use derive_more::{Deref, DerefMut};
75use std::{
76 any::{Any, TypeId},
77 borrow::{Borrow, BorrowMut},
78};
79use taffy::TaffyLayoutEngine;
80
81pub trait Context {
82 type Result<T>;
83
84 fn build_model<T: 'static>(
85 &mut self,
86 build_model: impl FnOnce(&mut ModelContext<'_, T>) -> T,
87 ) -> Self::Result<Model<T>>;
88
89 fn update_model<T, R>(
90 &mut self,
91 handle: &Model<T>,
92 update: impl FnOnce(&mut T, &mut ModelContext<'_, T>) -> R,
93 ) -> Self::Result<R>
94 where
95 T: 'static;
96
97 fn read_model<T, R>(
98 &self,
99 handle: &Model<T>,
100 read: impl FnOnce(&T, &AppContext) -> R,
101 ) -> Self::Result<R>
102 where
103 T: 'static;
104
105 fn update_window<T, F>(&mut self, window: AnyWindowHandle, f: F) -> Result<T>
106 where
107 F: FnOnce(AnyView, &mut WindowContext<'_>) -> T;
108
109 fn read_window<T, R>(
110 &self,
111 window: &WindowHandle<T>,
112 read: impl FnOnce(View<T>, &AppContext) -> R,
113 ) -> Result<R>
114 where
115 T: 'static;
116}
117
118pub trait VisualContext: Context {
119 fn build_view<V>(
120 &mut self,
121 build_view: impl FnOnce(&mut ViewContext<'_, V>) -> V,
122 ) -> Self::Result<View<V>>
123 where
124 V: 'static + Render;
125
126 fn update_view<V: 'static, R>(
127 &mut self,
128 view: &View<V>,
129 update: impl FnOnce(&mut V, &mut ViewContext<'_, V>) -> R,
130 ) -> Self::Result<R>;
131
132 fn replace_root_view<V>(
133 &mut self,
134 build_view: impl FnOnce(&mut ViewContext<'_, V>) -> V,
135 ) -> Self::Result<View<V>>
136 where
137 V: 'static + Render;
138
139 fn focus_view<V>(&mut self, view: &View<V>) -> Self::Result<()>
140 where
141 V: FocusableView;
142
143 fn dismiss_view<V>(&mut self, view: &View<V>) -> Self::Result<()>
144 where
145 V: ManagedView;
146}
147
148pub trait Entity<T>: Sealed {
149 type Weak: 'static;
150
151 fn entity_id(&self) -> EntityId;
152 fn downgrade(&self) -> Self::Weak;
153 fn upgrade_from(weak: &Self::Weak) -> Option<Self>
154 where
155 Self: Sized;
156}
157
158pub trait EventEmitter<E: Any>: 'static {}
159
160pub enum GlobalKey {
161 Numeric(usize),
162 View(EntityId),
163 Type(TypeId),
164}
165
166pub trait BorrowAppContext {
167 fn with_text_style<F, R>(&mut self, style: Option<TextStyleRefinement>, f: F) -> R
168 where
169 F: FnOnce(&mut Self) -> R;
170
171 fn set_global<T: 'static>(&mut self, global: T);
172}
173
174impl<C> BorrowAppContext for C
175where
176 C: BorrowMut<AppContext>,
177{
178 fn with_text_style<F, R>(&mut self, style: Option<TextStyleRefinement>, f: F) -> R
179 where
180 F: FnOnce(&mut Self) -> R,
181 {
182 if let Some(style) = style {
183 self.borrow_mut().push_text_style(style);
184 let result = f(self);
185 self.borrow_mut().pop_text_style();
186 result
187 } else {
188 f(self)
189 }
190 }
191
192 fn set_global<G: 'static>(&mut self, global: G) {
193 self.borrow_mut().set_global(global)
194 }
195}
196
197pub trait Flatten<T> {
198 fn flatten(self) -> Result<T>;
199}
200
201impl<T> Flatten<T> for Result<Result<T>> {
202 fn flatten(self) -> Result<T> {
203 self?
204 }
205}
206
207impl<T> Flatten<T> for Result<T> {
208 fn flatten(self) -> Result<T> {
209 self
210 }
211}
212
213#[derive(Deref, DerefMut, Eq, PartialEq, Hash, Clone)]
214pub struct SharedString(ArcCow<'static, str>);
215
216impl Default for SharedString {
217 fn default() -> Self {
218 Self(ArcCow::Owned("".into()))
219 }
220}
221
222impl AsRef<str> for SharedString {
223 fn as_ref(&self) -> &str {
224 &self.0
225 }
226}
227
228impl Borrow<str> for SharedString {
229 fn borrow(&self) -> &str {
230 self.as_ref()
231 }
232}
233
234impl std::fmt::Debug for SharedString {
235 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
236 self.0.fmt(f)
237 }
238}
239
240impl std::fmt::Display for SharedString {
241 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
242 write!(f, "{}", self.0.as_ref())
243 }
244}
245
246impl<T: Into<ArcCow<'static, str>>> From<T> for SharedString {
247 fn from(value: T) -> Self {
248 Self(value.into())
249 }
250}