Use popup instead of dialog

src/cmd_line.rs

@@ -1,23 +1,29 @@
 use gtk;
 use gtk::prelude::*;
 
+//TODO: levels
 pub struct CmdLine {
-    dlg: gtk::Dialog,
+    popover: gtk::Popover,
 }
 
 impl CmdLine {
-    pub fn new() -> Self {
-        let dlg = gtk::Dialog::new();
-        dlg.set_modal(true);
-        dlg.set_destroy_with_parent(true);
+    pub fn new(drawing: &gtk::DrawingArea) -> Self {
+        let popover = gtk::Popover::new(Some(drawing));
+        popover.set_modal(false);
+        let edit_frame = gtk::Frame::new(None);
+        edit_frame.set_shadow_type(gtk::ShadowType::In);
+        let drawing_area = gtk::DrawingArea::new();
+        edit_frame.add(&drawing_area);
+        edit_frame.show_all();
+
+        popover.add(&edit_frame);
 
         CmdLine {
-            dlg,
+            popover,
         }
     }
 
-    pub fn show<W: gtk::IsA<gtk::Window>>(&self, parent: &W) {
-        self.dlg.set_transient_for(parent);
-        self.dlg.show();
+    pub fn show(&self) {
+        self.popover.popup();
     }
 }

src/popup_menu.rs

@@ -11,7 +11,6 @@ use neovim_lib::{Neovim, NeovimApi};
 
 use color::ColorModel;
 use nvim::{self, ErrorReport, NeovimClient};
-use shell;
 use input;
 use render;
 

src/shell.rs

@@ -90,6 +90,7 @@ impl State {
     pub fn new(settings: Rc<RefCell<Settings>>, options: ShellOptions) -> State {
         let drawing_area = gtk::DrawingArea::new();
         let popup_menu = PopupMenu::new(&drawing_area);
+        let cmd_line = CmdLine::new(&drawing_area);
         let font_ctx = render::Context::new(FontDescription::from_string(DEFAULT_FONT_NAME));
 
         State {
@@ -101,7 +102,7 @@ impl State {
             font_ctx,
             cursor: None,
             popup_menu,
-            cmd_line: CmdLine::new(),
+            cmd_line,
             settings,
 
             mode: mode::Mode::new(),
@@ -1089,7 +1090,7 @@ impl RedrawEvents for State {
         indent: u64,
         level: u64,
     ) -> RepaintMode {
-        self.cmd_line.show(&self.get_window());
+        self.cmd_line.show();
         // TODO: implement
         RepaintMode::Nothing
     }