Language protocol: added additional capabilities checks

src/source_language_protocol.cc

@@ -84,8 +84,15 @@ LanguageProtocol::Capabilities LanguageProtocol::Client::initialize(Source::Lang
       auto capabilities_pt=result.find("capabilities");
       if(capabilities_pt!=result.not_found()) {
         capabilities.text_document_sync=static_cast<LanguageProtocol::Capabilities::TextDocumentSync>(capabilities_pt->second.get<unsigned>("textDocumentSync", 0));
+        capabilities.hover=capabilities_pt->second.get<bool>("hoverProvider", false);
+        capabilities.completion=capabilities_pt->second.find("completionProvider")!=capabilities_pt->second.not_found()?true:false;
+        capabilities.definition=capabilities_pt->second.get<bool>("definitionProvider", false);
+        capabilities.references=capabilities_pt->second.get<bool>("referencesProvider", false);
         capabilities.document_highlight=capabilities_pt->second.get<bool>("documentHighlightProvider", false);
         capabilities.workspace_symbol=capabilities_pt->second.get<bool>("workspaceSymbolProvider", false);
+        capabilities.document_formatting=capabilities_pt->second.get<bool>("documentFormattingProvider", false);
+        capabilities.document_range_formatting=capabilities_pt->second.get<bool>("documentRangeFormattingProvider", false);
+        capabilities.rename=capabilities_pt->second.get<bool>("renameProvider", false);
       }
       
       write_notification("initialized", "");
@@ -369,6 +376,7 @@ Source::LanguageProtocolView::~LanguageProtocolView() {
 }
 
 void Source::LanguageProtocolView::setup_navigation_and_refactoring() {
+  if(capabilities.document_formatting) {
     format_style=[this](bool continue_without_style_file) {
       if(!continue_without_style_file)
         return;
@@ -414,14 +422,18 @@ void Source::LanguageProtocolView::setup_navigation_and_refactoring() {
       }
       get_buffer()->end_user_action();
     };
+  }
   
+  if(capabilities.definition) {
     get_declaration_location=[this]() {
       auto offset=get_declaration(get_buffer()->get_insert()->get_iter());
       if(!offset)
         Info::get().print("No declaration found");
       return offset;
     };
+  }
   
+  if(capabilities.references) {
     get_usages=[this] {
       auto iter=get_buffer()->get_insert()->get_iter();
       std::vector<std::pair<Offset, std::string>> usages;
@@ -539,6 +551,7 @@ void Source::LanguageProtocolView::setup_navigation_and_refactoring() {
       
       return usages;
     };
+  }
   
   get_token_spelling=[this]() -> std::string {
     auto start=get_buffer()->get_insert()->get_iter();
@@ -555,6 +568,7 @@ void Source::LanguageProtocolView::setup_navigation_and_refactoring() {
     return get_buffer()->get_text(start, end);
   };
   
+  if(capabilities.rename) {
     rename_similar_tokens=[this](const std::string &text) {
       class Usages {
       public:
@@ -663,6 +677,7 @@ void Source::LanguageProtocolView::setup_navigation_and_refactoring() {
         Terminal::get().print("\n");
       }
     };
+  }
   
   goto_next_diagnostic=[this]() {
     auto insert_offset=get_buffer()->get_insert()->get_iter().get_offset();
@@ -790,6 +805,9 @@ void Source::LanguageProtocolView::show_diagnostic_tooltips(const Gdk::Rectangle
 }
 
 void Source::LanguageProtocolView::show_type_tooltips(const Gdk::Rectangle &rectangle) {
+  if(!capabilities.hover)
+    return;
+  
   Gtk::TextIter iter;
   int location_x, location_y;
   window_to_buffer_coords(Gtk::TextWindowType::TEXT_WINDOW_TEXT, rectangle.get_x(), rectangle.get_y(), location_x, location_y);
@@ -817,7 +835,7 @@ void Source::LanguageProtocolView::show_type_tooltips(const Gdk::Rectangle &rect
               tooltip_buffer->insert_with_tag(tooltip_buffer->get_insert()->get_iter(), "Type: "+value, "def:note");
               
 #ifdef JUCI_ENABLE_DEBUG
-              if(language_id=="rust") {
+              if(language_id=="rust" && capabilities.definition) {
                 if(Debug::LLDB::get().is_stopped()) {
                   Glib::ustring value_type="Value";
                   
@@ -867,6 +885,9 @@ void Source::LanguageProtocolView::show_type_tooltips(const Gdk::Rectangle &rect
 }
 
 void Source::LanguageProtocolView::tag_similar_symbols() {
+  if(!capabilities.document_highlight && !capabilities.references)
+    return;
+  
   auto iter=get_buffer()->get_insert()->get_iter();
   std::vector<std::pair<Offset, Offset>> offsets;
   std::promise<void> result_processed;
@@ -931,6 +952,9 @@ Source::Offset Source::LanguageProtocolView::get_declaration(const Gtk::TextIter
 }
 
 void Source::LanguageProtocolView::setup_autocomplete() {
+  if(!capabilities.completion)
+    return;
+  
   non_interactive_completion=[this] {
     if(CompletionDialog::get() && CompletionDialog::get()->is_visible())
       return;

src/source_language_protocol.h

@@ -28,8 +28,15 @@ namespace LanguageProtocol {
                                   FULL,
                                   INCREMENTAL };
     TextDocumentSync text_document_sync;
+    bool hover;
+    bool completion;
+    bool definition;
+    bool references;
     bool document_highlight;
     bool workspace_symbol;
+    bool document_formatting;
+    bool document_range_formatting;
+    bool rename;
   };
 
   class Client {