ui: add periodic account connectivity check

1. spawn thread to send ThreadPulses to the main event loop that "parks" until unparked from State
2. State unparks thread if there are accounts that are offline
3. thread sends ThreadPulse and parks again
4. State checks accounts again and so on.

1 files changed, 2 insertions, 2 deletions

diff --git a/ui/src/components/mail/listing.rs b/ui/src/components/mail/listing.rs
index 8b4c3471..ab28aba6 100644
--- a/ui/src/components/mail/listing.rs
+++ b/ui/src/components/mail/listing.rs
@@ -222,7 +222,6 @@ impl Component for Listing {
                 .dirty_areas
                 .push_back(((mid, get_y(upper_left)), (mid, get_y(bottom_right))));
         }
-        self.dirty = false;
 
         if right_component_width == total_cols {
             if !context.is_online(self.cursor_pos.0) {
@@ -278,6 +277,7 @@ impl Component for Listing {
                 }
             }
         }
+        self.dirty = false;
     }
     fn process_event(&mut self, event: &mut UIEvent, context: &mut Context) -> bool {
         if match self.component {
@@ -468,7 +468,7 @@ impl Component for Listing {
                 self.dirty = true;
             }
             UIEvent::Resize => {
-                self.dirty = true;
+                self.set_dirty();
             }
             UIEvent::Input(Key::Up) => {
                 let amount = if self.cmd_buf.is_empty() {