1 files changed, 58 insertions, 0 deletions
diff --git a/init.lua b/init.lua
new file mode 100644
index 0000000..888ff8e
--- /dev/null
+++ b/init.lua
@@ -0,0 +1,58 @@
+local M = {}
+local cursors = {}
+M.path = os.getenv('HOME') .. '/.cursors'
+
+function apply_cursor_pos(win)
+	if win.file == nil or win.file.path == nil then return end
+	local pos = cursors[win.file.path]
+	if pos == nil then return end
+	win.selection.pos = tonumber(pos)
+	vis:feedkeys("zz")
+end
+
+function file_exists(path)
+	local f = io.open(path)
+	if f == nil then return false
+	else f:close() return true 
+	end
+end	
+
+function read_cursors()
+	cursors = {}
+	local f = io.open(M.path)
+	if f == nil then return end
+	for line in f:lines() do
+		for k, v in string.gmatch(line, '(.+)%s(%d+)') do
+			cursors[k] = v
+		end 
+	end
+	f:close()
+	for win in vis:windows() do
+		apply_cursor_pos(win)
+	end
+end
+
+function write_cursors()
+	local f = io.open(M.path, 'w+')
+	if f == nil then return end
+	local a = {}
+	for k in pairs(cursors) do table.insert(a, k) end
+	table.sort(a)
+	for i,k in ipairs(a) do 
+		f:write(string.format('%s %d\n', k, cursors[k]))
+	end
+	f:close()
+end
+
+function set_cursor_pos(win)
+	if win.file == nil or win.file.path == nil then return end
+	if not file_exists(win.file.path) then return end
+	cursors[win.file.path] = win.selection.pos
+end
+
+vis.events.subscribe(vis.events.INIT, read_cursors)
+vis.events.subscribe(vis.events.WIN_OPEN, apply_cursor_pos)
+vis.events.subscribe(vis.events.WIN_CLOSE, set_cursor_pos)
+vis.events.subscribe(vis.events.QUIT, write_cursors)
+
+return M