vis-gpg

Commit: 98c4ff9bb62ea4fd971ad5167738f11ad2ae8565
Parent: eedd8c39300dfa0700fae20ef75e607eb692e8a6
Author: ixtenu
Date:   Sat, 11 Jul 2026 13:50:19 -0700

Save and restore cursor positions

Save window cursor positions during encrypt and restore them during
decrypt.  This fixes an issue where saving a file causes the cursor
position to jump to the beginning of the file.

Diffstat:
M
init.lua
 | 
24
++++++++++++++++++++++++

1 file changed, 24 insertions(+), 0 deletions(-)
diff --git a/init.lua b/init.lua
@@ -1,5 +1,26 @@
 local gpg = { key = 0 }
 
+-- replacing the whole buffer clamps all selections to the start of the
+-- file, so remember cursor positions across the encrypt/decrypt cycle
+local positions = setmetatable({}, { __mode = 'k' })
+
+local function save_positions(file)
+	for win in vis:windows() do
+		if win.file == file then
+			positions[win] = win.selection.pos
+		end
+	end
+end
+
+local function restore_positions(file)
+	for win in vis:windows() do
+		if win.file == file and positions[win] ~= nil then
+			win.selection.pos = positions[win]
+			positions[win] = nil
+		end
+	end
+end
+
 local function splitext(file)
 	if file == nil then return nil, nil end
 	local i = file:reverse():find('%.')
@@ -34,6 +55,7 @@ local function decrypt(file)
 	file:delete(0, file.size)
 	file:insert(0, ostr)
 	file.modified = false
+	restore_positions(file)
 	return true
 end
 vis.events.subscribe(vis.events.FILE_OPEN, decrypt)
@@ -48,6 +70,8 @@ local function encrypt(file)
 		return false
 	end
 
+	save_positions(file)
+
 	local tfn = os.tmpname()
 	local cmd = "gpg --yes -o " .. tfn .. " -e -r " .. gpg.key
 	local err = errpipe(file, cmd, true)