Checkpoint

This commit is contained in:
Nathan Sobo 2023-09-27 23:19:32 -06:00
parent 769a04517f
commit 7e49c7d782
3 changed files with 133 additions and 126 deletions

View file

@ -1,6 +1,10 @@
mod model_context;
pub use model_context::*;
use crate::{
current_platform, AnyWindowHandle, Context, LayoutId, MainThreadOnly, Platform, Reference,
RootView, TextSystem, Window, WindowContext, WindowHandle, WindowId,
current_platform, AnyWindowHandle, Context, LayoutId, MainThreadOnly, Platform, RootView,
TextSystem, Window, WindowContext, WindowHandle, WindowId,
};
use anyhow::{anyhow, Result};
use collections::{HashMap, VecDeque};
@ -274,94 +278,6 @@ impl AsyncContext {
}
}
pub struct ModelContext<'a, T> {
app: Reference<'a, AppContext>,
entity_type: PhantomData<T>,
entity_id: EntityId,
}
impl<'a, T: Send + Sync + 'static> ModelContext<'a, T> {
pub(crate) fn mutable(app: &'a mut AppContext, entity_id: EntityId) -> Self {
Self {
app: Reference::Mutable(app),
entity_type: PhantomData,
entity_id,
}
}
// todo!
// fn update<R>(&mut self, update: impl FnOnce(&mut T, &mut Self) -> R) -> R {
// let mut entity = self
// .app
// .entities
// .get_mut(self.entity_id)
// .unwrap()
// .take()
// .unwrap();
// let result = update(entity.downcast_mut::<T>().unwrap(), self);
// self.app
// .entities
// .get_mut(self.entity_id)
// .unwrap()
// .replace(entity);
// result
// }
pub fn handle(&self) -> WeakHandle<T> {
WeakHandle {
id: self.entity_id,
entity_type: PhantomData,
}
}
pub fn observe<E: Send + Sync + 'static>(
&mut self,
handle: &Handle<E>,
on_notify: impl Fn(&mut T, Handle<E>, &mut ModelContext<'_, T>) + Send + Sync + 'static,
) {
let this = self.handle();
let handle = handle.downgrade();
self.app
.observers
.entry(handle.id)
.or_default()
.push(Arc::new(move |cx| {
if let Some((this, handle)) = this.upgrade(cx).zip(handle.upgrade(cx)) {
this.update(cx, |this, cx| on_notify(this, handle, cx));
true
} else {
false
}
}));
}
pub fn notify(&mut self) {
self.app
.pending_effects
.push_back(Effect::Notify(self.entity_id));
}
}
impl<'a, T: 'static> Context for ModelContext<'a, T> {
type EntityContext<'b, 'c, U: Send + Sync + 'static> = ModelContext<'b, U>;
type Result<U> = U;
fn entity<U: Send + Sync + 'static>(
&mut self,
build_entity: impl FnOnce(&mut Self::EntityContext<'_, '_, U>) -> U,
) -> Handle<U> {
self.app.entity(build_entity)
}
fn update_entity<U: Send + Sync + 'static, R>(
&mut self,
handle: &Handle<U>,
update: impl FnOnce(&mut U, &mut Self::EntityContext<'_, '_, U>) -> R,
) -> R {
self.app.update_entity(handle, update)
}
}
slotmap::new_key_type! { pub struct EntityId; }
pub struct Handle<T> {

View file

@ -0,0 +1,90 @@
use crate::{AppContext, Context, Effect, EntityId, Handle, Reference, WeakHandle};
use std::{marker::PhantomData, sync::Arc};
pub struct ModelContext<'a, T> {
app: Reference<'a, AppContext>,
entity_type: PhantomData<T>,
entity_id: EntityId,
}
impl<'a, T: Send + Sync + 'static> ModelContext<'a, T> {
pub(crate) fn mutable(app: &'a mut AppContext, entity_id: EntityId) -> Self {
Self {
app: Reference::Mutable(app),
entity_type: PhantomData,
entity_id,
}
}
// todo!
// fn update<R>(&mut self, update: impl FnOnce(&mut T, &mut Self) -> R) -> R {
// let mut entity = self
// .app
// .entities
// .get_mut(self.entity_id)
// .unwrap()
// .take()
// .unwrap();
// let result = update(entity.downcast_mut::<T>().unwrap(), self);
// self.app
// .entities
// .get_mut(self.entity_id)
// .unwrap()
// .replace(entity);
// result
// }
pub fn handle(&self) -> WeakHandle<T> {
WeakHandle {
id: self.entity_id,
entity_type: PhantomData,
}
}
pub fn observe<E: Send + Sync + 'static>(
&mut self,
handle: &Handle<E>,
on_notify: impl Fn(&mut T, Handle<E>, &mut ModelContext<'_, T>) + Send + Sync + 'static,
) {
let this = self.handle();
let handle = handle.downgrade();
self.app
.observers
.entry(handle.id)
.or_default()
.push(Arc::new(move |cx| {
if let Some((this, handle)) = this.upgrade(cx).zip(handle.upgrade(cx)) {
this.update(cx, |this, cx| on_notify(this, handle, cx));
true
} else {
false
}
}));
}
pub fn notify(&mut self) {
self.app
.pending_effects
.push_back(Effect::Notify(self.entity_id));
}
}
impl<'a, T: 'static> Context for ModelContext<'a, T> {
type EntityContext<'b, 'c, U: Send + Sync + 'static> = ModelContext<'b, U>;
type Result<U> = U;
fn entity<U: Send + Sync + 'static>(
&mut self,
build_entity: impl FnOnce(&mut Self::EntityContext<'_, '_, U>) -> U,
) -> Handle<U> {
self.app.entity(build_entity)
}
fn update_entity<U: Send + Sync + 'static, R>(
&mut self,
handle: &Handle<U>,
update: impl FnOnce(&mut U, &mut Self::EntityContext<'_, '_, U>) -> R,
) -> R {
self.app.update_entity(handle, update)
}
}

View file

@ -9,53 +9,54 @@ impl TestPlatform {
}
}
// todo!("implement out what our tests needed in GPUI 1")
impl Platform for TestPlatform {
fn dispatcher(&self) -> std::sync::Arc<dyn crate::PlatformDispatcher> {
todo!()
unimplemented!()
}
fn text_system(&self) -> std::sync::Arc<dyn crate::PlatformTextSystem> {
todo!()
unimplemented!()
}
fn run(&self, _on_finish_launching: Box<dyn FnOnce()>) {
todo!()
unimplemented!()
}
fn quit(&self) {
todo!()
unimplemented!()
}
fn restart(&self) {
todo!()
unimplemented!()
}
fn activate(&self, _ignoring_other_apps: bool) {
todo!()
unimplemented!()
}
fn hide(&self) {
todo!()
unimplemented!()
}
fn hide_other_apps(&self) {
todo!()
unimplemented!()
}
fn unhide_other_apps(&self) {
todo!()
unimplemented!()
}
fn screens(&self) -> Vec<std::rc::Rc<dyn crate::PlatformScreen>> {
todo!()
unimplemented!()
}
fn screen_by_id(&self, _id: ScreenId) -> Option<std::rc::Rc<dyn crate::PlatformScreen>> {
todo!()
unimplemented!()
}
fn main_window(&self) -> Option<crate::AnyWindowHandle> {
todo!()
unimplemented!()
}
fn open_window(
@ -63,93 +64,93 @@ impl Platform for TestPlatform {
_handle: crate::AnyWindowHandle,
_options: crate::WindowOptions,
) -> Box<dyn crate::PlatformWindow> {
todo!()
unimplemented!()
}
fn open_url(&self, _url: &str) {
todo!()
unimplemented!()
}
fn on_open_urls(&self, _callback: Box<dyn FnMut(Vec<String>)>) {
todo!()
unimplemented!()
}
fn prompt_for_paths(
&self,
_options: crate::PathPromptOptions,
) -> futures::channel::oneshot::Receiver<Option<Vec<std::path::PathBuf>>> {
todo!()
unimplemented!()
}
fn prompt_for_new_path(
&self,
_directory: &std::path::Path,
) -> futures::channel::oneshot::Receiver<Option<std::path::PathBuf>> {
todo!()
unimplemented!()
}
fn reveal_path(&self, _path: &std::path::Path) {
todo!()
unimplemented!()
}
fn on_become_active(&self, _callback: Box<dyn FnMut()>) {
todo!()
unimplemented!()
}
fn on_resign_active(&self, _callback: Box<dyn FnMut()>) {
todo!()
unimplemented!()
}
fn on_quit(&self, _callback: Box<dyn FnMut()>) {
todo!()
unimplemented!()
}
fn on_reopen(&self, _callback: Box<dyn FnMut()>) {
todo!()
unimplemented!()
}
fn on_event(&self, _callback: Box<dyn FnMut(crate::Event) -> bool>) {
todo!()
unimplemented!()
}
fn os_name(&self) -> &'static str {
todo!()
unimplemented!()
}
fn os_version(&self) -> anyhow::Result<crate::SemanticVersion> {
todo!()
unimplemented!()
}
fn app_version(&self) -> anyhow::Result<crate::SemanticVersion> {
todo!()
unimplemented!()
}
fn app_path(&self) -> anyhow::Result<std::path::PathBuf> {
todo!()
unimplemented!()
}
fn local_timezone(&self) -> time::UtcOffset {
todo!()
unimplemented!()
}
fn path_for_auxiliary_executable(&self, _name: &str) -> anyhow::Result<std::path::PathBuf> {
todo!()
unimplemented!()
}
fn set_cursor_style(&self, _style: crate::CursorStyle) {
todo!()
unimplemented!()
}
fn should_auto_hide_scrollbars(&self) -> bool {
todo!()
unimplemented!()
}
fn write_to_clipboard(&self, _item: crate::ClipboardItem) {
todo!()
unimplemented!()
}
fn read_from_clipboard(&self) -> Option<crate::ClipboardItem> {
todo!()
unimplemented!()
}
fn write_credentials(
@ -158,14 +159,14 @@ impl Platform for TestPlatform {
_username: &str,
_password: &[u8],
) -> anyhow::Result<()> {
todo!()
unimplemented!()
}
fn read_credentials(&self, _url: &str) -> anyhow::Result<Option<(String, Vec<u8>)>> {
todo!()
unimplemented!()
}
fn delete_credentials(&self, _url: &str) -> anyhow::Result<()> {
todo!()
unimplemented!()
}
}