Skip to content

Fix scrolling issue in vterm #105

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
stevemolitor wants to merge 2 commits into
base: main
Choose a base branch
from
Draft

Fix scrolling issue in vterm #105

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
fd0f30a
Update changelog, version, readme fix
stevemolitor Sep 15, 2025
7932117
Fix scrolling issue in vterm.
stevemolitor Sep 15, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 10 additions & 0 deletions CHANGELOG.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,16 @@

All notable changes to claude-code.el will be documented in this file.

## [0.4.5]

### Added
- New `claude-code-display-window-fn` customization option (#100) to control display of Claude COde buffer

### Changed

### Fixed
- Fixed bug reporting line position when narrowring is in effect (#74)

## [0.4.4]

### Added
Expand Down
2 changes: 1 addition & 1 deletion README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -574,7 +574,7 @@ You can customize how Claude Code windows are displayed by setting `claude-code-

#### Using display-buffer-alist

You can also control how the Claude Code window appears using Emacs' `display-buffer-alist`. For example, to make the Claude window appear in a persistent side window on the right side of your screen with 33% width:
You can also control how the Claude Code window appears using Emacs' `display-buffer-alist`. For example, to make the Claude window appear in a persistent side window on the right side of your screen that is 90 characters wide:

```elisp
(add-to-list 'display-buffer-alist
Expand Down
17 changes: 15 additions & 2 deletions claude-code.el
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
;;; claude-code.el --- Claude Code Emacs integration -*- lexical-binding: t; -*-

;; Author: Stephen Molitor <stevemolitor@gmail.com>
;; Version: 0.4.4
;; Version: 0.4.5
;; Package-Requires: ((emacs "30.0") (transient "0.9.3"))
;; Keywords: tools, ai
;; URL: https://github.com/stevemolitor/claude-code.el
Expand Down Expand Up @@ -790,6 +790,17 @@ _BACKEND is the terminal backend type (should be \\='vterm)."
_BACKEND is the terminal backend type (should be \\='vterm)."
vterm-copy-mode)

(defun claude-code--vterm-window-scroll-advice (&rest _)
"Turn on vterm-copy-mode when scrolling in vterm claude buffer.

This allows the user to scroll backwards while the LLM is outputing new
text."
(advice-add 'set-window-vscroll :after
(when (and (claude-code--buffer-p (current-buffer)) (eq major-mode 'vterm-mode))
(if (> (window-end) (buffer-size))
(when vterm-copy-mode (claude-code-exit-read-only-mode))
(claude-code-read-only-mode)))))

(cl-defmethod claude-code--term-configure ((_backend (eql vterm)))
"Configure vterm terminal in current buffer.

Expand Down Expand Up @@ -817,7 +828,9 @@ _BACKEND is the terminal backend type (should be \\='vterm)."
;; Set up bell detection advice
(advice-add 'vterm--filter :around #'claude-code--vterm-bell-detector)
;; Set up multi-line buffering to prevent flickering
(advice-add 'vterm--filter :around #'claude-code--vterm-multiline-buffer-filter))
(advice-add 'vterm--filter :around #'claude-code--vterm-multiline-buffer-filter)
;; Allow scrolling in Claude buffer when LLM is streaming a response
(advice-add 'set-window-vscroll :after #'claude-code--adjust-window-size-advice))

(cl-defmethod claude-code--term-customize-faces ((_backend (eql vterm)))
"Apply face customizations for vterm terminal.
Expand Down