From 4fe5db0172ba7df1b36954143cb77083e344f842 Mon Sep 17 00:00:00 2001
From: Andy Stewart <lazycat.manatee@gmail.com>
Date: Fri, 13 May 2022 21:41:17 +0800
Subject: [PATCH] Support hover protocol now.

---
 core/fileaction.py | 11 +++++------
 core/lspserver.py  | 12 ++++++++++++
 lsp-bridge.el      |  4 ++++
 lsp-bridge.py      |  2 +-
 4 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/core/fileaction.py b/core/fileaction.py
index 55d6bf1953..612a4991cd 100755
--- a/core/fileaction.py
+++ b/core/fileaction.py
@@ -43,18 +43,13 @@ def __init__(self, filepath, project_path, lang_server):
         object.__init__(self)
 
         # Build request functions.
-        for name in ["find_define", "find_references", "prepare_rename", "rename", "completion"]:
+        for name in ["find_define", "find_references", "prepare_rename", "rename", "completion", "hover"]:
             self.build_request_function(name)
 
         # Init.
         self.filepath = filepath
         self.project_path = project_path
         self.request_dict = {}
-        self.completion_request_list = []
-        self.find_define_request_list = []
-        self.find_references_request_list = []
-        self.prepare_rename_request_list = []
-        self.rename_request_list = []
         self.last_change_file_time = -1
         self.last_change_file_before_cursor_text = ""
         self.last_change_cursor_time = -1
@@ -137,6 +132,10 @@ def _do(*args):
                 args = (request_id, self.filepath, name) + args
                 getattr(self.lsp_server, "send_{}_request".format(name))(*args)
 
+        # Init request list variable.
+        setattr(self, "{}_request_list".format(name), [])
+        
+        # Init request method.
         setattr(self, name, _do)
 
     def handle_server_response_message(self, request_id, request_type, response_result):
diff --git a/core/lspserver.py b/core/lspserver.py
index afc07556ee..9b76a7a1e6 100644
--- a/core/lspserver.py
+++ b/core/lspserver.py
@@ -417,6 +417,18 @@ def send_rename_request(self, request_id, filepath, type, position, new_name):
                                  "newName": new_name
                              },
                              request_id)
+        
+    def send_hover_request(self, request_id, filepath, type, position):
+        self.record_request_id(request_id, filepath, type)
+
+        self.send_to_request("textDocument/hover",
+                             {
+                                 "textDocument": {
+                                     "uri": path_to_uri(filepath)
+                                 },
+                                 "position": position
+                             },
+                             request_id)
 
     def send_shutdown_request(self):
         self.shutdown_id = generate_request_id()
diff --git a/lsp-bridge.el b/lsp-bridge.el
index e040ccd90c..6fc3b501c4 100644
--- a/lsp-bridge.el
+++ b/lsp-bridge.el
@@ -538,6 +538,10 @@ Then LSP-Bridge will start by gdb, please send new issue with `*lsp-bridge*' buf
             (pulse-delay lsp-bridge-flash-line-delay))
         (pulse-momentary-highlight-region start-pos end-pos 'lsp-bridge-font-lock-flash)))))
 
+(defun lsp-bridge-hover ()
+  (interactive)
+  (lsp-bridge-call-async "hover" lsp-bridge-filepath (lsp-bridge--position)))
+
 (defun lsp-bridge-get-pos (buf line column)
   (with-current-buffer buf
     (save-excursion
diff --git a/lsp-bridge.py b/lsp-bridge.py
index 4252d38420..f37358f1f1 100755
--- a/lsp-bridge.py
+++ b/lsp-bridge.py
@@ -41,7 +41,7 @@ def __init__(self, args):
         self.action_cache_dict = {} # use for contain file action cache
 
         # Build EPC interfaces.
-        for name in ["change_file", "find_define", "find_references", "prepare_rename", "rename", "change_cursor", "save_file"]:
+        for name in ["change_file", "find_define", "find_references", "prepare_rename", "rename", "change_cursor", "save_file", "hover"]:
             self.build_file_action_function(name)
 
         # Init EPC client port.