From 22429a7ced6ddc5a565c8e655c2a457a9afcf2a3 Mon Sep 17 00:00:00 2001
From: Filipe Ligeiro Silva <57916727+filipelsilva@users.noreply.github.com>
Date: Sat, 5 Oct 2024 00:06:13 +0100
Subject: [PATCH] Add @fpp-history-limit setting

---
 README.md |  4 ++++
 fpp.tmux  | 19 ++++++++++++++++++-
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 7b10bf8..57f3401 100644
--- a/README.md
+++ b/README.md
@@ -71,6 +71,10 @@ bind-key x run-shell '~/.tmux/plugins/tmux-fpp/fpp.tmux start paste'
 
 Put `set -g @fpp-path '~/my/path/fpp'` in `tmux.conf`.
 
+> How can I make fpp search my pane history and not just the current screen?
+
+Put `set -g @fpp-history-limit '50000'` in `tmux.conf`.
+
 ### Other goodies
 
 `tmux-fpp` works great with:
diff --git a/fpp.tmux b/fpp.tmux
index a7e4f7c..25eb532 100755
--- a/fpp.tmux
+++ b/fpp.tmux
@@ -15,6 +15,10 @@ set -Eeu -o pipefail
 #   @fpp-path
 #     - Custom path to FPP.
 #     - Default to 'fpp'.
+#   @fpp-history-limit
+#     - Whether to only use the current screen as input, or the whole pane
+#       history.
+#     - Defaults to 'screen'.
 #
 # This script has several entry points. With no arguments, it defaults to 'init'.
 # The entrypoints are defined by functions prefixed with `tmux_fpp_…`:
@@ -88,8 +92,21 @@ tmux_fpp_start() {
   # Otherwise, it's cleaned up in the "run" invocation after piping to fpp.
   trap 'rm -f "${tmpfile}"' ERR RETURN
 
+  # @fpp-history-limit determines if only the current screen is used as input,
+  # or the scrollback history of the pane is also used.
+  # Defaults to 'screen'.
+  fpp_history_limit="$(tmux show-option -gqv @fpp-history-limit)" || true
+  : "${fpp_history_limit:=screen}"
+
+  # Capture the pane contents.
+  if [ "$fpp_history_limit" = "screen" ]; then
+      content="$(tmux capture-pane -Jp)"
+  else
+      content="$(tmux capture-pane -JpS -"$fpp_history_limit")"
+  fi
+
   # Save the pane contents to the temporary file.
-  tmux capture-pane -Jp > "${tmpfile}"
+  echo "$content" > "${tmpfile}"
 
   # Create a new window, running the "tmux_fpp_internal_run" function.
   # It will run fpp and clean up the temp file.