1 files changed, 18 insertions, 0 deletions
diff --git a/lib/chessh/ssh/client/screen.ex b/lib/chessh/ssh/client/screen.ex
new file mode 100644
index 0000000..0437b23
--- /dev/null
+++ b/lib/chessh/ssh/client/screen.ex
@@ -0,0 +1,18 @@
+defmodule Chessh.SSH.Client.Screen do
+  @callback render(width :: integer(), height :: integer(), state :: any()) :: any()
+  @callback input(width :: integer(), height :: integer(), action :: any(), state :: any()) ::
+              any()
+
+  defmacro __using__(_) do
+    quote do
+      @behaviour Chessh.SSH.Client.Screen
+      use GenServer
+
+      def handle_info({:render, width, height}, state),
+        do: {:noreply, render(width, height, state)}
+
+      def handle_info({:input, width, height, action}, state),
+        do: {:noreply, input(width, height, action, state)}
+    end
+  end
+end