refactor: allow updating of completions

src/tui/editor.zig

@@ -418,10 +418,9 @@ pub const Editor = struct {
     diag_info: usize = 0,
     diag_hints: usize = 0,
 
-    completions: std.ArrayListUnmanaged(u8) = .empty,
-    completion_row: usize = 0,
-    completion_col: usize = 0,
-    completion_is_complete: bool = true,
+    completions: CompletionState = .empty,
+    completions_request: ?CompletionState = .done,
+    completions_refresh_pending: bool = false,
 
     changes: std.ArrayList(Diff) = .empty,
 
@@ -438,6 +437,22 @@ pub const Editor = struct {
         } = null,
     } = null,
 
+    const CompletionState = struct {
+        data: std.ArrayListUnmanaged(u8) = .empty,
+        row: usize = 0,
+        col: usize = 0,
+        is_complete: bool = true,
+
+        const empty: @This() = .{};
+        const pending: @This() = .empty;
+        const done: ?@This() = null;
+
+        fn deinit(self: *@This(), allocator: std.mem.Allocator) void {
+            self.data.deinit(allocator);
+            self.* = .empty;
+        }
+    };
+
     const StyleCache = std.AutoHashMap(u32, ?Widget.Theme.Token);
 
     const Context = command.Context;
@@ -626,6 +641,7 @@ pub const Editor = struct {
         for (self.diagnostics.items) |*d| d.deinit(self.allocator);
         self.diagnostics.deinit(self.allocator);
         self.completions.deinit(self.allocator);
+        if (self.completions_request) |*p| p.deinit(self.allocator);
         self.changes.deinit(self.allocator);
         self.clear_event_triggers();
         if (self.syntax) |syn| syn.destroy(tui.query_cache());
@@ -6251,7 +6267,10 @@ pub const Editor = struct {
 
     pub fn completion(self: *Self, _: Context) Result {
         const mv = tui.mainview() orelse return;
-        self.completions.clearRetainingCapacity();
+        if (self.completions_request) |_|
+            self.completions_refresh_pending = true
+        else
+            self.completions_request = .pending;
         if (!mv.is_any_panel_view_showing())
             self.clamp_offset(mv.get_panel_height());
         return self.pm_with_primary_cursor_pos(project_manager.completion);
@@ -6556,13 +6575,31 @@ pub const Editor = struct {
     pub const run_trigger_meta: Meta = .{ .arguments = &.{ .integer, .string } };
 
     pub fn add_completion(self: *Self, row: usize, col: usize, is_incomplete: bool, msg: tp.message) Result {
-        if (!(row == self.completion_row and col == self.completion_col)) {
-            self.completions.clearRetainingCapacity();
-            self.completion_row = row;
-            self.completion_col = col;
+        const request = if (self.completions_request) |*p| p else return;
+        request.row = row;
+        request.col = col;
+        try request.data.appendSlice(self.allocator, msg.buf);
+        request.is_complete = is_incomplete;
+    }
+
+    pub fn add_completion_done(self: *Self) anyerror!bool {
+        self.completions.deinit(self.allocator);
+        self.completions = .empty;
+        if (self.completions_request) |*request| {
+            self.completions.deinit(self.allocator);
+            self.completions = request.*;
+            self.completions_request = .done;
         }
-        try self.completions.appendSlice(self.allocator, msg.buf);
-        self.completion_is_complete = is_incomplete;
+
+        const update_completion = "update_completion";
+        if (command.get_id(update_completion)) |cmd_id|
+            try command.execute(cmd_id, update_completion, .{});
+
+        if (self.completions_refresh_pending) {
+            self.completions_refresh_pending = false;
+            try self.completion(.{});
+        }
+        return self.completions.data.items.len > 0;
     }
 
     pub fn get_completion_replacement_selection(self: *Self, replace: Selection) ?Selection {

src/tui/mainview.zig

@@ -1198,7 +1198,8 @@ const cmds = struct {
         var file_path_buf: [std.fs.max_path_bytes]u8 = undefined;
         file_path = project_manager.normalize_file_path(file_path, &file_path_buf);
         if (self.get_active_editor()) |editor| if (std.mem.eql(u8, file_path, editor.file_path orelse "")) {
-            if (editor.completions.items.len > 0) {
+            const have_completions = try editor.add_completion_done();
+            if (have_completions) {
                 switch (tui.config().completion_style) {
                     .palette => try tui.open_overlay(@import("mode/overlay/completion_palette.zig").Type),
                     .dropdown => try tui.open_overlay(@import("mode/overlay/completion_dropdown.zig").Type),

src/tui/mode/overlay/completion_dropdown.zig

@@ -34,6 +34,7 @@ pub const ValueType = struct {
     cursor: ed.Cursor = .{},
     view: ed.View = .{},
     replace: ?Buffer.Selection = null,
+    commands: command.Collection(cmds) = undefined,
 };
 pub const defaultValue: ValueType = .{};
 
@@ -48,7 +49,7 @@ pub fn load_entries(self: *Type) !usize {
 
     const editor = tui.get_active_editor() orelse return error.NotFound;
     self.value.start = editor.get_primary().*;
-    var iter: []const u8 = editor.completions.items;
+    var iter: []const u8 = editor.completions.data.items;
     while (iter.len > 0) {
         var cbor_item: []const u8 = undefined;
         if (!try cbor.matchValue(&iter, cbor.extract_cbor(&cbor_item))) return error.BadCompletion;
@@ -88,8 +89,8 @@ pub fn load_entries(self: *Type) !usize {
     return @max(max_description, if (max_label_len > label.len + 3) 0 else label.len + 3 - max_label_len);
 }
 
-pub fn deinit(_: *Type) void {
-    //
+pub fn deinit(self: *Type) void {
+    self.value.commands.deinit();
 }
 
 pub fn handle_event(self: *Type, _: tp.pid_ref, m: tp.message) tp.result {
@@ -107,6 +108,7 @@ pub fn handle_event(self: *Type, _: tp.pid_ref, m: tp.message) tp.result {
 }
 
 pub fn initial_query(self: *Type, allocator: std.mem.Allocator) error{OutOfMemory}![]const u8 {
+    try self.value.commands.init(self);
     const editor = tui.get_active_editor() orelse return allocator.dupe(u8, "");
     self.value.cursor = editor.get_primary().cursor;
     self.value.view = editor.view;
@@ -125,10 +127,7 @@ pub fn update_query(self: *Type, query: []const u8) void {
     self.value.cursor = primary.cursor;
     self.value.view = editor.view;
     if (self.value.replace) |*s| s.* = .{ .begin = s.begin, .end = self.value.cursor };
-    if (query.len > 0) {
-        const last_char = query[query.len - 1];
-        editor.run_triggers(primary, last_char, .insert);
-    }
+    tp.self_pid().send(.{ "cmd", "completion" }) catch |e| self.logger.err(module_name, e);
     return;
 }
 
@@ -331,3 +330,16 @@ pub fn cancel(_: *Type) !void {
     const mv = tui.mainview() orelse return;
     mv.cancel_info_content() catch {};
 }
+
+const cmds = struct {
+    pub const Target = Type;
+    const Ctx = command.Context;
+    const Meta = command.Metadata;
+    const Result = command.Result;
+
+    pub fn update_completion(self: *Type, _: Ctx) Result {
+        clear_entries(self);
+        _ = try load_entries(self);
+    }
+    pub const update_completion_meta: Meta = .{};
+};

src/tui/mode/overlay/completion_palette.zig

@@ -43,7 +43,7 @@ pub fn load_entries(palette: *Type) !usize {
 
     const editor = tui.get_active_editor() orelse return error.NotFound;
     palette.value.start = editor.get_primary().*;
-    var iter: []const u8 = editor.completions.items;
+    var iter: []const u8 = editor.completions.data.items;
     while (iter.len > 0) {
         var cbor_item: []const u8 = undefined;
         if (!try cbor.matchValue(&iter, cbor.extract_cbor(&cbor_item))) return error.BadCompletion;