Fixes to #317: Use primary-left click to move to implementation or declaration

src/source.cc

@@ -2213,6 +2213,7 @@ bool Source::View::on_key_press_event_smart_inserts(GdkEventKey *key) {
 }
 
 bool Source::View::on_button_press_event(GdkEventButton *event) {
+  // Select range when double clicking
   if(event->type==GDK_2BUTTON_PRESS) {
     Gtk::TextIter start, end;
     get_buffer()->get_selection_bounds(start, end);
@@ -2230,14 +2231,32 @@ bool Source::View::on_button_press_event(GdkEventButton *event) {
     return true;
   }
 
+  // Go to implementation or declaration
   if((event->type == GDK_BUTTON_PRESS) && (event->button == 1)){
-    if(event->state & GDK_CONTROL_MASK) {
-      hide_tooltips();
+#ifdef __APPLE__
+    GdkModifierType mask=GDK_MOD2_MASK;
+#else
+    GdkModifierType mask=GDK_CONTROL_MASK;
+#endif
+    if(event->state & mask) {
+      int x, y;
+      window_to_buffer_coords(Gtk::TextWindowType::TEXT_WINDOW_TEXT, event->x, event->y, x, y);
+      Gtk::TextIter iter;
+      get_iter_at_location(iter, x, y);
+      if(iter)
+        get_buffer()->place_cursor(iter);
+      
+      if(is_implementation_location) {
+        if(is_implementation_location())
+          Menu::get().actions["source_goto_declaration"]->activate();
+        else
           Menu::get().actions["source_goto_implementation"]->activate();
         return true;
       }
     }
+  }
 
+  // Open right click menu
   if((event->type == GDK_BUTTON_PRESS) && (event->button == 3)){
     hide_tooltips();
     if(!get_buffer()->get_has_selection()){

src/source.h

@@ -68,7 +68,7 @@ namespace Source {
     std::function<void()> non_interactive_completion;
     std::function<void()> format_style;
     std::function<Offset()> get_declaration_location;
-    std::function<bool()> is_implementation;
+    std::function<bool()> is_implementation_location;
     std::function<std::vector<Offset>(const std::vector<Source::View*> &views)> get_implementation_locations;
     std::function<std::vector<std::pair<Offset, std::string> >(const std::vector<Source::View*> &views)> get_usages;
     std::function<std::string()> get_method;

src/source_clang.cc

@@ -1012,18 +1012,7 @@ Source::ClangViewRefactor::ClangViewRefactor(const boost::filesystem::path &file
     }
   });
   
-  get_declaration_location=[this](){
-    if(!parsed) {
-      Info::get().print("Buffer is parsing");
-      return Offset();
-    }
-    auto identifier=get_identifier();
-    if(identifier) {
-      auto source_location=identifier.cursor.get_canonical().get_source_location();
-      auto offset=source_location.get_offset();
-      return Offset(offset.line-1, offset.index-1, source_location.get_path());
-    }
-    else {
+  auto get_header_location=[this]() {
     // If cursor is at an include line, return offset to included file
     const static std::regex include_regex("^[ \t]*#[ \t]*include[ \t]*[<\"](.+)[>\"][ \t]*$");
     std::smatch sm;
@@ -1073,12 +1062,30 @@ Source::ClangViewRefactor::ClangViewRefactor(const boost::filesystem::path &file
       if(!client_data.found_include.empty())
         return Offset(0, 0, client_data.found_include);
     }
+    return Offset();
+  };
+  
+  get_declaration_location=[this, get_header_location](){
+    if(!parsed) {
+      Info::get().print("Buffer is parsing");
+      return Offset();
+    }
+    auto identifier=get_identifier();
+    if(identifier) {
+      auto source_location=identifier.cursor.get_canonical().get_source_location();
+      auto offset=source_location.get_offset();
+      return Offset(offset.line-1, offset.index-1, source_location.get_path());
+    }
+    else {
+      auto location=get_header_location();
+      if(location)
+        return location;
     }
     Info::get().print("No declaration found");
     return Offset();
   };
   
-  is_implementation=[this]() {
+  is_implementation_location=[this]() {
     if(!parsed)
       return false;
     auto iter=get_buffer()->get_insert()->get_iter();
@@ -1093,7 +1100,7 @@ Source::ClangViewRefactor::ClangViewRefactor(const boost::filesystem::path &file
     return false;
   };
   
-  get_implementation_locations=[this](const std::vector<Source::View*> &views){
+  get_implementation_locations=[this, get_header_location](const std::vector<Source::View*> &views){
     std::vector<Offset> locations;
     if(!parsed) {
       Info::get().print("Buffer is parsing");
@@ -1163,6 +1170,13 @@ Source::ClangViewRefactor::ClangViewRefactor(const boost::filesystem::path &file
         return locations;
       }
     }
+    else {
+      auto location=get_header_location();
+      if(location) {
+        locations.emplace_back(location);
+        return locations;
+      }
+    }
     Info::get().print("No implementation found");
     return locations;
   };