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Add initial element inspector for Zed development (#31315)

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Open inspector with `dev: toggle inspector` from command palette or
`cmd-alt-i` on mac or `ctrl-alt-i` on linux.

https://github.com/user-attachments/assets/54c43034-d40b-414e-ba9b-190bed2e6d2f

* Picking of elements via the mouse, with scroll wheel to inspect
occluded elements.

* Temporary manipulation of the selected element.

* Layout info and JSON-based style manipulation for `Div`.

* Navigation to code that constructed the element.

Big thanks to @as-cii and @maxdeviant for sorting out how to implement
the core of an inspector.

Release Notes:

- N/A

---------

Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: Marshall Bowers <git@maxdeviant.com>
Co-authored-by: Federico Dionisi <code@fdionisi.me>
This commit is contained in:
Michael Sloan 2025-05-23 17:08:59 -06:00 • committed by GitHub
parent 685933b5c8
commit ab59982bf7
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GPG key ID: B5690EEEBB952194
74 changed files with 2631 additions and 406 deletions
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11
crates/editor/src/items.rs
View file

@ -1135,7 +1135,7 @@ impl SerializableItem for Editor {
mtime,
..
} => {
let project_item = project.update(cx, |project, cx| {
let opened_buffer = project.update(cx, |project, cx| {
let (worktree, path) = project.find_worktree(&abs_path, cx)?;
let project_path = ProjectPath {
worktree_id: worktree.read(cx).id(),
@ -1144,13 +1144,10 @@ impl SerializableItem for Editor {
Some(project.open_path(project_path, cx))
});
match project_item {
Some(project_item) => {
match opened_buffer {
Some(opened_buffer) => {
window.spawn(cx, async move |cx| {
let (_, project_item) = project_item.await?;
let buffer = project_item.downcast::<Buffer>().map_err(|_| {
anyhow!("Project item at stored path was not a buffer")
})?;
let (_, buffer) = opened_buffer.await?;
// This is a bit wasteful: we're loading the whole buffer from
// disk and then overwrite the content.