From 110644a48ad63353cfe19110248d3515b4537b58 Mon Sep 17 00:00:00 2001 From: Craig Jennings Date: Sat, 6 Jun 2026 12:47:24 -0500 Subject: fix(term): land copy-mode cursor at column 0 Entering copy-mode from C-; x c left the cursor at the live column, far right after a prompt, so scrolling up ran the cursor up the right edge instead of the left. In the tmux branch I append C-a after C-b [, which tmux's emacs copy-mode reads as start-of-line. It has to go after C-b [: before copy-mode is active, C-a would hit the shell's readline instead. In the non-tmux ghostel-copy-mode branch I call beginning-of-line after entering the view, for the same column-0 result. Both branches now run the cursor up the left edge. The non-tmux test asserts ghostel-copy-mode runs before beginning-of-line, since the move only repositions inside an active copy view. Its tracker variable is dwim-order, not calls, to avoid clashing with the variable the tmux mock macro binds. --- modules/term-config.el | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) (limited to 'modules') diff --git a/modules/term-config.el b/modules/term-config.el index 7cd386dc..2daebe9b 100644 --- a/modules/term-config.el +++ b/modules/term-config.el @@ -29,10 +29,12 @@ ;; Two ways to lift text out of a terminal, both with the same key story: ;; - C-; x c enters copy-mode via `cj/term-copy-mode-dwim'. When a tmux ;; client is attached (typical -- `cj/term-launch-tmux' auto-starts tmux), -;; sends tmux's prefix C-b [ so the user lands in tmux's own copy-mode with -;; the full pane history available. Without tmux, falls back to +;; sends tmux's prefix C-b [ then C-a, so the user lands in tmux's own +;; copy-mode with the full pane history and the cursor at column 0 (so +;; scrolling up runs up the left, not the right). Without tmux, falls back to ;; `ghostel-copy-mode' (read-only standard-Emacs navigation over the -;; scrollback; M-w copies and stays, q / C-g exit). +;; scrollback; M-w copies and stays, q / C-g exit) and moves point to the +;; start of the line for the same column-0 reason. ;; - C-; x h captures the current tmux pane's full history into a temporary ;; Emacs buffer. ;; In both copy surfaces, M-w copies the active region and stays open so several @@ -190,13 +192,19 @@ cheap boolean predicate." "Enter copy-mode using the engine appropriate to this terminal. When tmux is attached, write tmux's default prefix sequence (C-b [) into the -pty so the user lands in tmux's copy-mode with the full pane history. Without -tmux, falls through to `ghostel-copy-mode', a read-only standard-Emacs view of -the scrollback (M-w copies and stays, q / C-g exit)." +pty so the user lands in tmux's copy-mode with the full pane history, then +C-a to land the cursor at the start of the line. Without the trailing C-a +the copy cursor inherits the live column (far right after a prompt) and +scrolling up runs up the right edge; tmux's emacs copy-mode binds C-a to +start-of-line, so column 0 makes it run up the left. Without tmux, falls +through to `ghostel-copy-mode' (a read-only standard-Emacs view of the +scrollback; M-w copies and stays, q / C-g exit), then moves point to the +start of the line for the same column-0 reason." (interactive) (if (cj/term--in-tmux-p) - (ghostel-send-string "\C-b[") - (ghostel-copy-mode))) + (ghostel-send-string "\C-b[\C-a") + (ghostel-copy-mode) + (beginning-of-line))) ;; ----------------------------- ghostel package ------------------------------- -- cgit v1.2.3