tmux: when resizing locally, inform tmux of new size

This isn't really correct: if there are splits, this is most
likely going to do the wrong thing.

refs: #336

mux/src/tmux_commands.rs

@@ -266,6 +266,28 @@ impl TmuxCommand for ListAllPanes {
     }
 }
 
+#[derive(Debug)]
+pub(crate) struct Resize {
+    pub size: portable_pty::PtySize,
+}
+
+impl TmuxCommand for Resize {
+    fn get_command(&self) -> String {
+        format!("refresh-client -C {}x{}\n", self.size.cols, self.size.rows)
+    }
+
+    fn process_result(&self, domain_id: DomainId, result: &Guarded) -> anyhow::Result<()> {
+        if result.error {
+            log::error!(
+                "Error resizing: domain_id={} result={:?}",
+                domain_id,
+                result
+            );
+        }
+        Ok(())
+    }
+}
+
 #[derive(Debug)]
 pub(crate) struct CapturePane(TmuxPaneId);
 impl TmuxCommand for CapturePane {

mux/src/tmux_pty.rs

@@ -1,5 +1,5 @@
 use crate::tmux::{RefTmuxRemotePane, TmuxCmdQueue, TmuxDomainState};
-use crate::tmux_commands::SendKeys;
+use crate::tmux_commands::{Resize, SendKeys};
 use crate::DomainId;
 use filedescriptor::FileDescriptor;
 use portable_pty::{Child, ChildKiller, ExitStatus, MasterPty};
@@ -123,7 +123,9 @@ impl ChildKiller for TmuxChild {
 
 impl MasterPty for TmuxPty {
     fn resize(&self, size: portable_pty::PtySize) -> Result<(), anyhow::Error> {
-        log::warn!("TODO: perform pane resize");
+        let mut cmd_queue = self.cmd_queue.lock().unwrap();
+        cmd_queue.push_back(Box::new(Resize { size }));
+        TmuxDomainState::schedule_send_next_command(self.domain_id);
         Ok(())
     }