logiguard fork: GPUI xdg-activation keyboard-focus serial fix

Single-commit orphan branch: full zed-industries/zed @ 8c74db0 source tree
with a 3-file patch applied (no upstream history).

Patch (crates/gpui_linux/src/linux/wayland/):
  - serial.rs: add SerialKind::KeyboardEnter
  - client.rs: store wl_keyboard.enter serial; add latest_serial_of()
  - window.rs: activate() uses keyboard-enter serial (Mutter focus gate)

Mutter honors window activation only when the token carries the keyboard-
focus serial from wl_keyboard.enter; GPUI used a stale mouse-press serial.
See docs/tray-window-focus-wayland.md in logiguard.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

crates/snippet_provider/src/extension_snippet.rs

@@ -0,0 +1,26 @@
+use std::path::PathBuf;
+use std::sync::Arc;
+
+use anyhow::Result;
+use extension::{ExtensionHostProxy, ExtensionSnippetProxy};
+use gpui::App;
+
+use crate::SnippetRegistry;
+
+pub fn init(cx: &mut App) {
+    let proxy = ExtensionHostProxy::default_global(cx);
+    proxy.register_snippet_proxy(SnippetRegistryProxy {
+        snippet_registry: SnippetRegistry::global(cx),
+    });
+}
+
+struct SnippetRegistryProxy {
+    snippet_registry: Arc<SnippetRegistry>,
+}
+
+impl ExtensionSnippetProxy for SnippetRegistryProxy {
+    fn register_snippet(&self, path: &PathBuf, snippet_contents: &str) -> Result<()> {
+        self.snippet_registry
+            .register_snippets(path, snippet_contents)
+    }
+}

crates/snippet_provider/src/format.rs

@@ -0,0 +1,78 @@
+use collections::HashMap;
+use schemars::{JsonSchema, json_schema};
+use serde::Deserialize;
+use std::borrow::Cow;
+use util::schemars::{AllowTrailingCommas, DefaultDenyUnknownFields};
+
+#[derive(Deserialize)]
+pub struct VsSnippetsFile {
+    #[serde(flatten)]
+    pub(crate) snippets: HashMap<String, VsCodeSnippet>,
+}
+
+impl VsSnippetsFile {
+    pub fn generate_json_schema() -> serde_json::Value {
+        let schema = schemars::generate::SchemaSettings::draft2019_09()
+            .with_transform(DefaultDenyUnknownFields)
+            .with_transform(AllowTrailingCommas)
+            .into_generator()
+            .root_schema_for::<Self>();
+
+        serde_json::to_value(schema).unwrap()
+    }
+}
+
+impl JsonSchema for VsSnippetsFile {
+    fn schema_name() -> Cow<'static, str> {
+        "VsSnippetsFile".into()
+    }
+
+    fn json_schema(generator: &mut schemars::SchemaGenerator) -> schemars::Schema {
+        let snippet_schema = generator.subschema_for::<VsCodeSnippet>();
+        json_schema!({
+            "type": "object",
+            "additionalProperties": snippet_schema
+        })
+    }
+}
+
+#[derive(Deserialize, JsonSchema)]
+#[serde(untagged)]
+pub(crate) enum ListOrDirect {
+    Single(String),
+    List(Vec<String>),
+}
+
+impl From<ListOrDirect> for Vec<String> {
+    fn from(list: ListOrDirect) -> Self {
+        match list {
+            ListOrDirect::Single(entry) => vec![entry],
+            ListOrDirect::List(entries) => entries,
+        }
+    }
+}
+
+impl std::fmt::Display for ListOrDirect {
+    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+        write!(
+            f,
+            "{}",
+            match self {
+                Self::Single(v) => v.to_owned(),
+                Self::List(v) => v.join("\n"),
+            }
+        )
+    }
+}
+
+#[derive(Deserialize, JsonSchema)]
+pub(crate) struct VsCodeSnippet {
+    /// The snippet prefix used to decide whether a completion menu should be shown.
+    pub(crate) prefix: Option<ListOrDirect>,
+
+    /// The snippet content. Use `$1` and `${1:defaultText}` to define cursor positions and `$0` for final cursor position.
+    pub(crate) body: ListOrDirect,
+
+    /// The snippet description displayed inside the completion menu.
+    pub(crate) description: Option<ListOrDirect>,
+}

crates/snippet_provider/src/lib.rs

@@ -0,0 +1,303 @@
+mod extension_snippet;
+pub mod format;
+mod registry;
+
+use std::{
+    path::{Path, PathBuf},
+    sync::Arc,
+    time::Duration,
+};
+
+use anyhow::Result;
+use collections::{BTreeMap, BTreeSet, HashMap};
+use format::VsSnippetsFile;
+use fs::Fs;
+use futures::stream::StreamExt;
+use gpui::{App, AppContext as _, AsyncApp, Context, Entity, Task, WeakEntity};
+pub use registry::*;
+use util::ResultExt;
+
+pub fn init(cx: &mut App) {
+    SnippetRegistry::init_global(cx);
+    extension_snippet::init(cx);
+}
+
+/// Language name, or `None` if the snippet file is global.
+type SnippetKind = Option<String>;
+fn file_stem_to_key(stem: &str) -> SnippetKind {
+    if stem == "snippets" {
+        None
+    } else {
+        Some(stem.to_owned())
+    }
+}
+
+pub fn file_to_snippets(
+    file_contents: VsSnippetsFile,
+    source: &Path,
+) -> impl Iterator<Item = Result<Arc<Snippet>>> {
+    file_contents
+        .snippets
+        .into_iter()
+        .map(move |(name, snippet)| {
+            let snippet_name = name.clone();
+            let prefixes = snippet
+                .prefix
+                .map_or_else(move || vec![snippet_name], |prefixes| prefixes.into());
+            let description = snippet
+                .description
+                .map(|description| description.to_string());
+            let body = snippet.body.to_string();
+            match snippet::Snippet::parse(&body) {
+                Ok(_) => Ok(Arc::new(Snippet {
+                    body,
+                    prefix: prefixes,
+                    description,
+                    name,
+                })),
+                Err(e) => Err(anyhow::anyhow!(
+                    "Invalid snippet '{name}' in {source:?}: {e:#}"
+                )),
+            }
+        })
+}
+
+// Snippet with all of the metadata
+#[derive(Debug)]
+pub struct Snippet {
+    pub prefix: Vec<String>,
+    pub body: String,
+    pub description: Option<String>,
+    pub name: String,
+}
+
+async fn process_updates(
+    this: WeakEntity<SnippetProvider>,
+    entries: Vec<PathBuf>,
+    mut cx: AsyncApp,
+) -> Result<()> {
+    let fs = this.read_with(&cx, |this, _| this.fs.clone())?;
+    for entry_path in entries {
+        if entry_path
+            .extension()
+            .is_none_or(|extension| extension != "json")
+        {
+            continue;
+        }
+        let entry_metadata = fs.metadata(&entry_path).await;
+        // Entry could have been removed, in which case we should no longer show completions for it.
+        let entry_exists = entry_metadata.is_ok();
+        if entry_metadata.is_ok_and(|entry| entry.is_some_and(|e| e.is_dir)) {
+            // Don't process dirs.
+            continue;
+        }
+        let Some(stem) = entry_path.file_stem().and_then(|s| s.to_str()) else {
+            continue;
+        };
+        let key = file_stem_to_key(stem);
+
+        let contents = if entry_exists {
+            fs.load(&entry_path).await.ok()
+        } else {
+            None
+        };
+
+        this.update(&mut cx, move |this, _| {
+            let snippets_of_kind = this.snippets.entry(key).or_default();
+            if entry_exists {
+                let Some(file_contents) = contents else {
+                    return;
+                };
+                let Ok(as_json) = serde_json_lenient::from_str::<VsSnippetsFile>(&file_contents)
+                else {
+                    return;
+                };
+                let snippets = file_to_snippets(as_json, entry_path.as_path());
+                *snippets_of_kind.entry(entry_path).or_default() =
+                    snippets.filter_map(Result::log_err).collect();
+            } else {
+                snippets_of_kind.remove(&entry_path);
+            }
+        })?;
+    }
+    Ok(())
+}
+
+async fn initial_scan(
+    this: WeakEntity<SnippetProvider>,
+    path: Arc<Path>,
+    cx: AsyncApp,
+) -> Result<()> {
+    let fs = this.read_with(&cx, |this, _| this.fs.clone())?;
+    let entries = fs.read_dir(&path).await;
+    if let Ok(entries) = entries {
+        let entries = entries
+            .collect::<Vec<_>>()
+            .await
+            .into_iter()
+            .collect::<Result<Vec<_>>>()?;
+        process_updates(this, entries, cx).await?;
+    }
+    Ok(())
+}
+
+pub struct SnippetProvider {
+    fs: Arc<dyn Fs>,
+    snippets: HashMap<SnippetKind, BTreeMap<PathBuf, Vec<Arc<Snippet>>>>,
+    watch_tasks: Vec<Task<Result<()>>>,
+}
+
+// Watches global snippet directory, is created just once and reused across multiple projects
+struct GlobalSnippetWatcher(Entity<SnippetProvider>);
+
+impl GlobalSnippetWatcher {
+    fn new(fs: Arc<dyn Fs>, cx: &mut App) -> Self {
+        let global_snippets_dir = paths::snippets_dir();
+        let provider = cx.new(|_cx| SnippetProvider {
+            fs,
+            snippets: Default::default(),
+            watch_tasks: vec![],
+        });
+        provider.update(cx, |this, cx| this.watch_directory(global_snippets_dir, cx));
+        Self(provider)
+    }
+}
+
+impl gpui::Global for GlobalSnippetWatcher {}
+
+impl SnippetProvider {
+    pub fn new(fs: Arc<dyn Fs>, dirs_to_watch: BTreeSet<PathBuf>, cx: &mut App) -> Entity<Self> {
+        cx.new(move |cx| {
+            if !cx.has_global::<GlobalSnippetWatcher>() {
+                let global_watcher = GlobalSnippetWatcher::new(fs.clone(), cx);
+                cx.set_global(global_watcher);
+            }
+            let mut this = Self {
+                fs,
+                watch_tasks: Vec::new(),
+                snippets: Default::default(),
+            };
+
+            for dir in dirs_to_watch {
+                this.watch_directory(&dir, cx);
+            }
+
+            this
+        })
+    }
+
+    /// Add directory to be watched for content changes
+    fn watch_directory(&mut self, path: &Path, cx: &Context<Self>) {
+        let path: Arc<Path> = Arc::from(path);
+
+        self.watch_tasks.push(cx.spawn(async move |this, cx| {
+            let fs = this.read_with(cx, |this, _| this.fs.clone())?;
+            let watched_path = path.clone();
+            let watcher = fs.watch(&watched_path, Duration::from_secs(1));
+            initial_scan(this.clone(), path, cx.clone()).await?;
+
+            let (mut entries, _) = watcher.await;
+            while let Some(entries) = entries.next().await {
+                process_updates(
+                    this.clone(),
+                    entries.into_iter().map(|event| event.path).collect(),
+                    cx.clone(),
+                )
+                .await?;
+            }
+            Ok(())
+        }));
+    }
+
+    fn lookup_snippets<'a, const LOOKUP_GLOBALS: bool>(
+        &'a self,
+        language: &'a SnippetKind,
+        cx: &App,
+    ) -> Vec<Arc<Snippet>> {
+        let mut user_snippets: Vec<_> = self
+            .snippets
+            .get(language)
+            .cloned()
+            .unwrap_or_default()
+            .into_values()
+            .flat_map(|snippets| snippets.into_iter())
+            .collect();
+        if LOOKUP_GLOBALS {
+            if let Some(global_watcher) = cx.try_global::<GlobalSnippetWatcher>() {
+                user_snippets.extend(
+                    global_watcher
+                        .0
+                        .read(cx)
+                        .lookup_snippets::<false>(language, cx),
+                );
+            }
+
+            let Some(registry) = SnippetRegistry::try_global(cx) else {
+                return user_snippets;
+            };
+
+            let registry_snippets = registry.get_snippets(language);
+            user_snippets.extend(registry_snippets);
+        }
+
+        user_snippets
+    }
+
+    #[cfg(any(test, feature = "test-support"))]
+    pub fn add_snippet_for_test(
+        &mut self,
+        language: SnippetKind,
+        path: PathBuf,
+        snippet: Vec<Arc<Snippet>>,
+    ) {
+        self.snippets
+            .entry(language)
+            .or_default()
+            .insert(path, snippet);
+    }
+
+    pub fn snippets_for(&self, language: SnippetKind, cx: &App) -> Vec<Arc<Snippet>> {
+        let mut requested_snippets = self.lookup_snippets::<true>(&language, cx);
+
+        if language.is_some() {
+            // Look up global snippets as well.
+            requested_snippets.extend(self.lookup_snippets::<true>(&None, cx));
+        }
+        requested_snippets
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use fs::FakeFs;
+    use gpui;
+    use gpui::TestAppContext;
+    use indoc::indoc;
+
+    #[gpui::test]
+    fn test_lookup_snippets_dup_registry_snippets(cx: &mut TestAppContext) {
+        let fs = FakeFs::new(cx.background_executor.clone());
+        cx.update(|cx| {
+            SnippetRegistry::init_global(cx);
+            SnippetRegistry::global(cx)
+                .register_snippets(
+                    "ruby".as_ref(),
+                    indoc! {r#"
+                    {
+                      "Log to console": {
+                        "prefix": "log",
+                        "body": ["console.info(\"Hello, ${1:World}!\")", "$0"],
+                        "description": "Logs to console"
+                      }
+                    }
+            "#},
+                )
+                .unwrap();
+            let provider = SnippetProvider::new(fs.clone(), Default::default(), cx);
+            cx.update_entity(&provider, |provider, cx| {
+                assert_eq!(1, provider.snippets_for(Some("ruby".to_owned()), cx).len());
+            });
+        });
+    }
+}

crates/snippet_provider/src/registry.rs

@@ -0,0 +1,57 @@
+use std::{path::Path, sync::Arc};
+
+use anyhow::Result;
+use collections::HashMap;
+use gpui::{App, Global, ReadGlobal, UpdateGlobal};
+use parking_lot::RwLock;
+use util::ResultExt;
+
+use crate::{Snippet, SnippetKind, file_stem_to_key};
+
+struct GlobalSnippetRegistry(Arc<SnippetRegistry>);
+
+impl Global for GlobalSnippetRegistry {}
+
+#[derive(Default)]
+pub struct SnippetRegistry {
+    snippets: RwLock<HashMap<SnippetKind, Vec<Arc<Snippet>>>>,
+}
+
+impl SnippetRegistry {
+    pub fn global(cx: &App) -> Arc<Self> {
+        GlobalSnippetRegistry::global(cx).0.clone()
+    }
+
+    pub fn try_global(cx: &App) -> Option<Arc<Self>> {
+        cx.try_global::<GlobalSnippetRegistry>()
+            .map(|registry| registry.0.clone())
+    }
+
+    pub fn init_global(cx: &mut App) {
+        GlobalSnippetRegistry::set_global(cx, GlobalSnippetRegistry(Arc::new(Self::new())))
+    }
+
+    pub fn new() -> Self {
+        Self {
+            snippets: RwLock::new(HashMap::default()),
+        }
+    }
+
+    pub fn register_snippets(&self, file_path: &Path, contents: &str) -> Result<()> {
+        let snippets_in_file: crate::format::VsSnippetsFile =
+            serde_json_lenient::from_str(contents)?;
+        let kind = file_path
+            .file_stem()
+            .and_then(|stem| stem.to_str().and_then(file_stem_to_key));
+        let snippets = crate::file_to_snippets(snippets_in_file, file_path);
+        self.snippets
+            .write()
+            .insert(kind, snippets.filter_map(Result::log_err).collect());
+
+        Ok(())
+    }
+
+    pub fn get_snippets(&self, kind: &SnippetKind) -> Vec<Arc<Snippet>> {
+        self.snippets.read().get(kind).cloned().unwrap_or_default()
+    }
+}