preserve pane zoom state

scripts/fingers.sh

@@ -15,21 +15,38 @@ BACKSPACE=$'\177'
 
 function clear_screen() {
   clear
-  tmux clearhist -t $fingers_pane_id
+  tmux clearhist -t "$fingers_pane_id"
 }
 
 function has_capitals() {
-  echo $1 | grep [A-Z] | wc -l
+  echo "$1" | grep -c "[A-Z]"
+}
+
+function is_pane_zoomed() {
+  local pane_id=$1
+
+  tmux list-panes \
+    -F "#{pane_id}:#{?pane_active,active,nope}:#{?window_zoomed_flag,zoomed,nope}" \
+    | grep -c "^${pane_id}:active:zoomed$"
+}
+
+function zoom_pane() {
+  local pane_id=$1
+
+  tmux resize-pane -Z -t "$pane_id"
 }
 
 clear_screen
 print_hints
+pane_was_zoomed=$(is_pane_zoomed "$current_pane_id")
 tmux swap-pane -s "$current_pane_id" -t "$fingers_pane_id"
+[[ $pane_was_zoomed == "1" ]] && zoom_pane "$fingers_pane_id"
 
 function handle_exit() {
   tmux swap-pane -s "$current_pane_id" -t "$fingers_pane_id"
+  [[ $pane_was_zoomed == "1" ]] && zoom_pane "$current_pane_id"
   tmux kill-pane -t "$fingers_pane_id"
-  rm -rf $tmp_path
+  rm -rf "$tmp_path"
 }
 
 function copy_result() {
@@ -70,7 +87,7 @@ do
   fi
 
   copy_result "$result"
-  revert_to_original_pane $current_pane_id $fingers_pane_id
+  revert_to_original_pane "$current_pane_id" "$fingers_pane_id"
 
   exit 0
 done < /dev/tty

test/specs/preserve-zoom-state_spec.exp

@@ -0,0 +1,32 @@
+#!/usr/bin/env expect
+
+set timeout 1;
+set tmux_prefix "
";
+
+source "./test/helpers.exp"
+
+exec "tmux kill-session -t test";
+exec "rm -rf /tmp/tmux-yank-result"
+
+spawn tmux -f ./test/conf/basic.conf new -s test;
+sleep 0.5;
+
+init_pane
+tmux_send "%"
+tmux_send "%"
+tmux_send "%"
+tmux_send "z"
+
+exec "cat ./test/fixtures/grep-output";
+invoke_fingers;
+
+send ""
+
+exec "echo \"current pane is \$(tmux list-panes -F '#{?window_zoomed_flag,zoomed,not_zoomed}' | head -1)\""
+
+expect {
+  "current pane is zoomed" { exit_ok }
+  timeout { exit_fail }
+}
+
+exit $exit_code;

test/specs/tmux-yank-integration_spec.exp

@@ -25,4 +25,3 @@ expect {
 }
 
 exit $exit_code;
-set timeout 1;