Fix issue #739, support closing label protocol of Dart.

core/fileaction.py

@@ -288,6 +288,9 @@ def try_push_diagnostics(self, ticker):
         if ticker == self.diagnostics_ticker:
             eval_in_emacs("lsp-bridge-diagnostic--render", self.filepath, get_lsp_file_host(), self.get_diagnostics())
 
+    def record_dart_closing_lables(self, labels):
+        eval_in_emacs("lsp-bridge-dart-closing-labels--render", self.filepath, get_lsp_file_host(), labels)
+
     def push_code_actions(self, actions, server_name, action_kind):
         log_time("Record actions from '{}' for file {}".format(server_name, os.path.basename(self.filepath)))
         self.code_actions[server_name] = actions

core/lspserver.py

@@ -559,6 +559,11 @@ def handle_recv_message(self, message: dict):
             if self.enable_diagnostics and is_in_path_dict(self.files, filepath):
                 get_from_path_dict(self.files, filepath).record_diagnostics(message["params"]["diagnostics"], self.server_info["name"])
 
+        if "method" in message and message["method"] == "dart/textDocument/publishClosingLabels":
+            filepath = uri_to_path(message["params"]["uri"])
+            if is_in_path_dict(self.files, filepath):
+                get_from_path_dict(self.files, filepath).record_dart_closing_lables(message["params"]["labels"])
+
         # Notice user if got error message from lsp server.
         if "method" in message and message["method"] == "window/logMessage":
             try:

langserver/dart-analysis-server.json

@@ -7,5 +7,8 @@
     "--client-id",
     "emacs.lsp-bridge"
   ],
-  "settings": {}
+  "settings": {},
+  "initializationOptions": {
+    "closingLabels": true
+  }
 }

lsp-bridge-dart.el

@@ -0,0 +1,123 @@
+;;; lsp-bridge-dart.el --- Dart protocol   -*- lexical-binding: t; -*-
+
+;; Filename: lsp-bridge-dart.el
+;; Description: Dart protocol
+;; Author: Andy Stewart <[email protected]>
+;; Maintainer: Andy Stewart <[email protected]>
+;; Copyright (C) 2023, Andy Stewart, all rights reserved.
+;; Created: 2023-10-03 21:35:08
+;; Version: 0.1
+;; Last-Updated: 2023-10-03 21:35:08
+;;           By: Andy Stewart
+;; URL: https://www.github.org/manateelazycat/lsp-bridge-dart
+;; Keywords:
+;; Compatibility: GNU Emacs 30.0.50
+;;
+;; Features that might be required by this library:
+;;
+;;
+;;
+
+;;; This file is NOT part of GNU Emacs
+
+;;; License
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 3, or (at your option)
+;; any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program; see the file COPYING.  If not, write to
+;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth
+;; Floor, Boston, MA 02110-1301, USA.
+
+;;; Commentary:
+;;
+;; Dart protocol
+;;
+
+;;; Installation:
+;;
+;; Put lsp-bridge-dart.el to your load-path.
+;; The load-path is usually ~/elisp/.
+;; It's set in your ~/.emacs like this:
+;; (add-to-list 'load-path (expand-file-name "~/elisp"))
+;;
+;; And the following to your ~/.emacs startup file.
+;;
+;; (require 'lsp-bridge-dart)
+;;
+;; No need more.
+
+;;; Customize:
+;;
+;;
+;;
+;; All of the above can customize by:
+;;      M-x customize-group RET lsp-bridge-dart RET
+;;
+
+;;; Change log:
+;;
+;; 2023/10/03
+;;      * First released.
+;;
+
+;;; Acknowledgements:
+;;
+;;
+;;
+
+;;; TODO
+;;
+;;
+;;
+
+;;; Require
+
+
+;;; Code:
+
+(defface lsp-bridge-dart-closing-label-face
+  `((t :foreground "#aaaaaa"))
+  "Face for dart closing tab."
+  :group 'lsp-bridge-dart)
+
+(defvar-local lsp-bridge-dart-closing-label-overlays '())
+
+(defun lsp-bridge-dart-hide-closing-label-overlays ()
+  (when lsp-bridge-dart-closing-label-overlays
+    (dolist (dart-overlay lsp-bridge-dart-closing-label-overlays)
+      (delete-overlay dart-overlay)))
+
+  (setq-local lsp-bridge-dart-closing-label-overlays nil))
+
+(defun lsp-bridge-dart-closing-labels--render (filepath filehost closing-labels)
+  (lsp-bridge--with-file-buffer
+      filepath filehost
+      ;; Hide previous overlays first.
+      (lsp-bridge-dart-hide-closing-label-overlays)
+
+      ;; Render new overlays.
+      (save-excursion
+        (save-restriction
+          (dolist (closing-label closing-labels)
+            (let* ((label (plist-get closing-label :label))
+                   (range (plist-get closing-label :range))
+                   (end (plist-get range :end)))
+              (goto-char (acm-backend-lsp-position-to-point end))
+              (let* ((overlay (make-overlay (point) (1+ (point)) nil t)))
+                (overlay-put overlay 'before-string (propertize label 'face 'lsp-bridge-dart-closing-label-face))
+                (overlay-put overlay 'evaporate t) ; NOTE, `evaporate' is import
+                (push overlay lsp-bridge-dart-closing-label-overlays)
+                )))))))
+
+(provide 'lsp-bridge-dart)
+
+;;; lsp-bridge-dart.el ends here

lsp-bridge.el

@@ -95,6 +95,7 @@
 (require 'lsp-bridge-lsp-installer)
 (require 'lsp-bridge-org-babel)
 (require 'lsp-bridge-inlay-hint)
+(require 'lsp-bridge-dart)
 
 (defgroup lsp-bridge nil
   "LSP-Bridge group."