feat: configure editor completion triggers from LSP info

src/tui/editor.zig

@@ -542,9 +542,8 @@ pub const Editor = struct {
             tp.extract_cbor(&cursels_cbor),
         }))
             return error.RestoreStateMatch;
-        self.insert_triggers.deinit(self.allocator);
+        self.clear_event_triggers();
         self.insert_triggers = .fromOwnedSlice(insert_triggers);
-        self.delete_triggers.deinit(self.allocator);
         self.delete_triggers = .fromOwnedSlice(delete_triggers);
         self.refresh_tab_width();
         if (op == .open_file)
@@ -614,8 +613,7 @@ pub const Editor = struct {
         for (self.diagnostics.items) |*d| d.deinit(self.allocator);
         self.diagnostics.deinit(self.allocator);
         self.completions.deinit(self.allocator);
-        self.insert_triggers.deinit(self.allocator);
-        self.delete_triggers.deinit(self.allocator);
+        self.clear_event_triggers();
         if (self.syntax) |syn| syn.destroy(tui.query_cache());
         self.cancel_all_tabstops();
         self.cursels.deinit(self.allocator);
@@ -6234,9 +6232,31 @@ pub const Editor = struct {
         };
     }
 
+    fn clear_event_triggers(self: *Self) void {
+        self.insert_triggers.deinit(self.allocator);
+        self.delete_triggers.deinit(self.allocator);
+        self.insert_triggers = .empty;
+        self.delete_triggers = .empty;
+    }
+
+    pub fn update_completion_triggers(self: *Self) void {
+        self.clear_event_triggers();
+        if (self.file_type) |ft| if (ft.language_server) |ls| if (ls.len > 0) {
+            const lsp_arg0 = ls[0];
+            const info = (tui.mainview() orelse return).lsp_info.table.get(lsp_arg0) orelse return;
+            self.add_completion_triggers(info.trigger_characters.items);
+        };
+    }
+
     fn add_default_symbol_triggers(self: *Self) void {
+        const chars: []const []const u8 = &.{"."};
+        self.add_completion_triggers(chars);
+    }
+
+    fn add_completion_triggers(self: *Self, triggers: []const []const u8) void {
         const id = command.get_name_id("completion");
-        self.add_symbol_trigger('.', id, .insert) catch {};
+        for (triggers) |char| if (char.len > 0)
+            self.add_symbol_trigger(char[0], id, .insert) catch {};
     }
 
     pub fn add_symbol_trigger(self: *Self, char: u8, command_: command.ID, event: TriggerEvent) error{OutOfMemory}!void {

src/tui/lsp_info.zig

@@ -3,6 +3,10 @@ table: Table,
 
 const Table = std.StringHashMapUnmanaged(Info);
 
+pub const Info = struct {
+    trigger_characters: std.ArrayList([]const u8) = .empty,
+};
+
 pub fn init(allocator: std.mem.Allocator) @This() {
     return .{
         .allocator = allocator,
@@ -60,10 +64,6 @@ pub fn add(self: *@This(), lsp_arg0: []const u8, iter: *[]const u8) error{ Inval
     return value;
 }
 
-pub const Info = struct {
-    trigger_characters: std.ArrayList([]const u8) = .empty,
-};
-
 pub fn write_state(self: *@This(), writer: *std.Io.Writer) error{WriteFailed}!void {
     try cbor.writeArrayHeader(writer, self.table.count());
     var iter = self.table.iterator();

src/tui/mainview.zig

@@ -1994,3 +1994,9 @@ pub fn vcs_content_update(self: *Self, m: tp.message) void {
             editor.vcs_content_update() catch {};
     }
 }
+
+pub fn trigger_characters_update(self: *Self, m: tp.message) void {
+    self.lsp_info.add_from_event(m.buf) catch return;
+    const editor = self.get_active_editor() orelse return;
+    editor.update_completion_triggers();
+}

src/tui/tui.zig

@@ -534,7 +534,7 @@ fn receive_safe(self: *Self, from: tp.pid_ref, m: tp.message) !void {
         return if (mainview()) |mv| mv.vcs_content_update(m);
 
     if (try m.match(.{ "PRJ", "triggerCharacters", tp.more }))
-        return if (mainview()) |mv| mv.lsp_info.add_from_event(m.buf);
+        return if (mainview()) |mv| mv.trigger_characters_update(m);
 
     if (try m.match(.{ "PRJ", tp.more })) // drop late project manager query responses
         return;