Do not exit from chdig on Backspace (only on Q) when there are no vie…

…ws to pop

src/view/navigation.rs

@@ -40,7 +40,7 @@ pub trait Navigation {
  fn has_view(&mut self, name: &str) -> bool;
 
  fn make_theme_from_therminal(&mut self) -> Theme;
- fn pop_ui(&mut self);
+ fn pop_ui(&mut self, exit: bool);
  fn toggle_pause_updates(&mut self);
  fn refresh_view(&mut self);
 
@@ -112,11 +112,13 @@ impl Navigation for Cursive {
  return theme;
  }
 
- fn pop_ui(&mut self) {
+ fn pop_ui(&mut self, exit: bool) {
  // - main view
  // - statusbar
  if self.screen_mut().len() == 2 {
- self.quit();
+ if exit {
+ self.quit();
+ }
  } else {
  self.pop_layer();
  }
@@ -227,8 +229,8 @@ impl Navigation for Cursive {
  '~',
  toggle_flexi_logger_debug_console,
  );
- context.add_global_action(self, "Back/Quit", 'q', |siv| siv.pop_ui());
- context.add_global_action(self, "Back/Quit", Key::Backspace, |siv| siv.pop_ui());
+ context.add_global_action(self, "Back/Quit", 'q', |siv| siv.pop_ui(true));
+ context.add_global_action(self, "Back", Key::Backspace, |siv| siv.pop_ui(false));
  context.add_global_action(self, "Toggle pause", 'p', |siv| siv.toggle_pause_updates());
  context.add_global_action(self, "Refresh", 'r', |siv| siv.refresh_view());
  }