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WIP: Return WindowHandle<V: View> from AppContext::add_window (#2820)

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Instead of returning a usize for the window id, I'm instead returning a
`WindowHandle<V: View>` where `V` is the type of the window's root view.
@as-cii helped me with a cool technique using generic associated types
where methods on `WindowHandle` can return either T or Option<T>
depending on the `BorrowWindowContext::Result` associated type.

Some example usage...

```rs
let window = cx.add_window(|cx| MyView::new(cx));
let my_view = window.root(cx); // If cx is TestAppContext, returns MyView. Otherwise returns Option<MyView>, because the window could be closed.
```


This isn't insanely beneficial on its own, but I think it will help
clean up our testing story. I'm planning on making `window` more useful
in tests for laying out elements, etc.

- [x] Rework tests that call `add_window` 😅 to expect only a window in
return.
- [x] Get tests passing
- [x] 🚬  test
This commit is contained in:
Nathan Sobo 2023-08-03 18:45:51 -06:00 • committed by GitHub
commit d3c1966d96
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25 changed files with 1174 additions and 896 deletions
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32
crates/project_panel/src/project_panel.rs
View file

@ -1780,7 +1780,9 @@ mod tests {
.await;
let project = Project::test(fs.clone(), ["/root1".as_ref(), "/root2".as_ref()], cx).await;
let (_, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
let workspace = cx
.add_window(|cx| Workspace::test_new(project.clone(), cx))
.root(cx);
let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
assert_eq!(
visible_entries_as_strings(&panel, 0..50, cx),
@ -1868,7 +1870,9 @@ mod tests {
.await;
let project = Project::test(fs.clone(), ["/root1".as_ref(), "/root2".as_ref()], cx).await;
let (window_id, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
let workspace = window.root(cx);
let window_id = window.window_id();
let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
select_path(&panel, "root1", cx);
@ -2219,7 +2223,9 @@ mod tests {
.await;
let project = Project::test(fs.clone(), ["/root1".as_ref(), "/root2".as_ref()], cx).await;
let (window_id, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
let workspace = window.root(cx);
let window_id = window.window_id();
let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
select_path(&panel, "root1", cx);
@ -2319,7 +2325,9 @@ mod tests {
.await;
let project = Project::test(fs.clone(), ["/root1".as_ref()], cx).await;
let (_, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
let workspace = cx
.add_window(|cx| Workspace::test_new(project.clone(), cx))
.root(cx);
let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
panel.update(cx, |panel, cx| {
@ -2392,7 +2400,9 @@ mod tests {
.await;
let project = Project::test(fs.clone(), ["/src".as_ref()], cx).await;
let (window_id, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
let workspace = window.root(cx);
let window_id = window.window_id();
let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
toggle_expand_dir(&panel, "src/test", cx);
@ -2481,7 +2491,9 @@ mod tests {
.await;
let project = Project::test(fs.clone(), ["/src".as_ref()], cx).await;
let (window_id, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
let window = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
let workspace = window.root(cx);
let window_id = window.window_id();
let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
select_path(&panel, "src/", cx);
@ -2627,7 +2639,9 @@ mod tests {
.await;
let project = Project::test(fs.clone(), ["/src".as_ref()], cx).await;
let (_, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
let workspace = cx
.add_window(|cx| Workspace::test_new(project.clone(), cx))
.root(cx);
let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
let new_search_events_count = Arc::new(AtomicUsize::new(0));
@ -2714,7 +2728,9 @@ mod tests {
.await;
let project = Project::test(fs.clone(), ["/project_root".as_ref()], cx).await;
let (_, workspace) = cx.add_window(|cx| Workspace::test_new(project.clone(), cx));
let workspace = cx
.add_window(|cx| Workspace::test_new(project.clone(), cx))
.root(cx);
let panel = workspace.update(cx, |workspace, cx| ProjectPanel::new(workspace, cx));
panel.update(cx, |panel, cx| {