Do not block when waiting for next event if we have pending input

Handle next event should never block if we have already accumulated
input that we want to process. As we can accumulate new input in
lots of places (everytime we run a shell process for example, we
might end up reading input keys. That can be triggered during the
mode line generation which takes place during display of the window)

Fixes #1804

1 files changed, 5 insertions, 0 deletions

diff --git a/src/client_manager.cc b/src/client_manager.cc
index c721f1db..9cb5f8e5 100644
--- a/src/client_manager.cc
+++ b/src/client_manager.cc
@@ -90,6 +90,11 @@ void ClientManager::process_pending_inputs() const
     }
 }
 
+bool ClientManager::has_pending_inputs() const
+{
+    return contains_that(m_clients, [](auto&& c) { return c->has_pending_inputs(); });
+}
+
 void ClientManager::remove_client(Client& client, bool graceful, int status)
 {
     auto it = find(m_clients, &client);