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

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

View file

@ -982,7 +982,9 @@ mod tests {
.await;
let project = Project::test(app_state.fs.clone(), ["/root".as_ref()], cx).await;
let (_, workspace) = cx.add_window(|cx| Workspace::test_new(project, cx));
let workspace = cx
.add_window(|cx| Workspace::test_new(project, cx))
.root(cx);
let entries = cx.read(|cx| workspace.file_project_paths(cx));
let file1 = entries[0].clone();
@ -1294,7 +1296,9 @@ mod tests {
.await;
let project = Project::test(app_state.fs.clone(), ["/root".as_ref()], cx).await;
let (window_id, workspace) = cx.add_window(|cx| Workspace::test_new(project, cx));
let window = cx.add_window(|cx| Workspace::test_new(project, cx));
let workspace = window.root(cx);
let window_id = window.window_id();
// Open a file within an existing worktree.
workspace
@ -1335,7 +1339,9 @@ mod tests {
let project = Project::test(app_state.fs.clone(), ["/root".as_ref()], cx).await;
project.update(cx, |project, _| project.languages().add(rust_lang()));
let (window_id, workspace) = cx.add_window(|cx| Workspace::test_new(project, cx));
let window = cx.add_window(|cx| Workspace::test_new(project, cx));
let workspace = window.root(cx);
let window_id = window.window_id();
let worktree = cx.read(|cx| workspace.read(cx).worktrees(cx).next().unwrap());
// Create a new untitled buffer
@ -1428,7 +1434,9 @@ mod tests {
let project = Project::test(app_state.fs.clone(), [], cx).await;
project.update(cx, |project, _| project.languages().add(rust_lang()));
let (window_id, workspace) = cx.add_window(|cx| Workspace::test_new(project, cx));
let window = cx.add_window(|cx| Workspace::test_new(project, cx));
let workspace = window.root(cx);
let window_id = window.window_id();
// Create a new untitled buffer
cx.dispatch_action(window_id, NewFile);
@ -1479,7 +1487,9 @@ mod tests {
.await;
let project = Project::test(app_state.fs.clone(), ["/root".as_ref()], cx).await;
let (window_id, workspace) = cx.add_window(|cx| Workspace::test_new(project, cx));
let window = cx.add_window(|cx| Workspace::test_new(project, cx));
let workspace = window.root(cx);
let window_id = window.window_id();
let entries = cx.read(|cx| workspace.file_project_paths(cx));
let file1 = entries[0].clone();
@ -1553,7 +1563,9 @@ mod tests {
.await;
let project = Project::test(app_state.fs.clone(), ["/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 pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
let entries = cx.read(|cx| workspace.file_project_paths(cx));
@ -1830,7 +1842,9 @@ mod tests {
.await;
let project = Project::test(app_state.fs.clone(), ["/root".as_ref()], cx).await;
let (_, workspace) = cx.add_window(|cx| Workspace::test_new(project, cx));
let workspace = cx
.add_window(|cx| Workspace::test_new(project, cx))
.root(cx);
let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
let entries = cx.read(|cx| workspace.file_project_paths(cx));
@ -2072,7 +2086,8 @@ mod tests {
cx.foreground().run_until_parked();
let (window_id, _view) = cx.add_window(|_| TestView);
let window = cx.add_window(|_| TestView);
let window_id = window.window_id();
// Test loading the keymap base at all
assert_key_bindings_for(
@ -2242,7 +2257,8 @@ mod tests {
cx.foreground().run_until_parked();
let (window_id, _view) = cx.add_window(|_| TestView);
let window = cx.add_window(|_| TestView);
let window_id = window.window_id();
// Test loading the keymap base at all
assert_key_bindings_for(