Fix idle add problem

src/main.rs

@@ -1,4 +1,5 @@
 extern crate gtk;
+extern crate glib;
 extern crate cairo;
 extern crate neovim_lib;
 extern crate rmp;

src/nvim.rs

@@ -6,7 +6,7 @@ use ui_mutex::UiMutex;
 use rmp::Value;
 use rmp::value::Integer;
 use ui::Ui;
-use gtk;
+use glib;
 
 pub type SharedUi = Arc<UiMutex<Ui>>;
 
@@ -88,12 +88,12 @@ fn call(ui: &SharedUi, method: &str, args: Vec<Value>) {
 }
 
 fn safe_call<F>(mutex: SharedUi, cb: F)
-    where F: Fn(&UiMutex<Ui>) -> result::Result<(), String> + 'static
+    where F: Fn(&UiMutex<Ui>) -> result::Result<(), String> + 'static + Send
 {
-    gtk::idle_add(move || {
+    glib::idle_add(move || {
         if let Err(msg) = cb(&*mutex) {
             println!("Error call function: {}", msg);
         }
-        gtk::Continue(false)
+        glib::Continue(false)
     });
 }

src/ui_mutex.rs

@@ -20,8 +20,9 @@ impl<T> UiMutex<T> {
     }
 
     pub fn borrow_mut(&self) -> RefMut<T> {
-        if thread::current().name().map(|v| v.to_owned()) != self.main_thread_name {
-            panic!("Can access value only from main thread");
+        let current_thread_name = thread::current().name().map(|v| v.to_owned());
+        if current_thread_name != self.main_thread_name {
+            panic!("Can access value only from main thread, {:?}/{:?}", current_thread_name, self.main_thread_name);
         }
 
         self.data.borrow_mut()