add autocompletion demo

juci/notebook.cc

@@ -1,4 +1,5 @@
 #include "notebook.h"
+#include "clangmm.h"
 
 Notebook::Model::Model() {
   cc_extension_ = ".cc";
@@ -388,14 +389,13 @@ void Notebook::Controller::OnBufferChange() {
   end = Buffer(text_vec_.at(page))->get_insert()->get_iter();
   start.backward_char();
   word = Buffer(text_vec_.at(page))->get_text(start, end);
+  std::cout << start.get_line() << std::endl;
+  std::cout << start.get_line_offset() << std::endl;
   if (word == ".") {
     // TODO(Forgie) Zalox,Forgie) Remove TEST
-    std::vector<std::string> TEST;
-    TEST.push_back("toString()");
-    TEST.push_back("toLower()");
-    TEST.push_back("toUpper()");
-    TEST.push_back("fuckOFF()");
-    TEST.push_back("fuckOFF()");
+    std::vector<std::string> TEST
+      = text_vec_[page]->GetAutoCompleteSuggestions(start.get_line()+1,
+                                                    start.get_line_offset()+2);
     GeneratePopup(TEST);
   }
 }

juci/source.cc

@@ -132,6 +132,39 @@ ReParse(const std::string &buffer) {
 // fired when a line in the buffer is edited
 void Source::Controller::OnLineEdit() { }
 
+std::vector<std::string> Source::Controller::
+GetAutoCompleteSuggestions(int line_number,
+                           int column) {
+  return model().GetAutoCompleteSuggestions(view().get_buffer()
+                                            ->get_text().raw(),
+                                            line_number,
+                                            column);
+}
+
+std::vector<std::string> Source::Model::
+GetAutoCompleteSuggestions(const std::string& buffer,
+                           int line_number,
+                           int column) {
+  
+  std::vector<std::string> res;
+  parsing.lock();
+  clang::CodeCompleteResults results(&tu_,
+                                     file_path(),
+                                     buffer,
+                                     line_number,
+                                     column);
+  for (int i = 0; i < results.size(); i++) {
+    std::stringstream ss;
+    const vector<clang::CompletionChunk> c = results.get(i).get_chunks();
+    for (auto &stringchunk : c) {
+      ss << stringchunk.chunk();
+    }
+    res.emplace_back(ss.str());
+  }
+  parsing.unlock();
+  return res;
+}
+
 // sets the filepath for this mvc
 void Source::Model::
 set_file_path(const std::string &file_path) {

juci/source.h

@@ -95,6 +95,10 @@ namespace Source {
     const string& project_path() const;
     // gets the config member
     const Config& config() const;
+    std::vector<std::string>
+    GetAutoCompleteSuggestions(const std::string& buffer,
+                               int line_number,
+                               int column);
       ~Model() { }
     int ReParse(const std::string &buffer);
     std::vector<Range> ExtractTokens(int, int);
@@ -121,6 +125,9 @@ namespace Source {
     Model& model();
     void OnNewEmptyFile();
     void OnOpenFile(const string &filename);
+    std::vector<std::string>
+    GetAutoCompleteSuggestions(int line_number,
+                               int column);
     Glib::RefPtr<Gtk::TextBuffer> buffer();
 
   private: