From 14e524cf217250388d374433cf6f3241f66e4e01 Mon Sep 17 00:00:00 2001
From: mitchell <70453897+orbitalquark@users.noreply.github.com>
Date: Sat, 19 Sep 2020 14:53:20 -0400
Subject: Added `events.FILE_{BEFORE,AFTER}_RELOAD` and save/restore bookmarks.
 Also moved buffer state save/restore into ui module.

---
 core/file_io.lua | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

(limited to 'core/file_io.lua')

diff --git a/core/file_io.lua b/core/file_io.lua
index d45372ec..71dd5af3 100644
--- a/core/file_io.lua
+++ b/core/file_io.lua
@@ -9,6 +9,12 @@
 --   Arguments:
 --
 --   * _`filename`_: The opened file's filename.
+-- @field _G.events.FILE_BEFORE_RELOAD (string)
+--   Emitted before reloading the current file.
+--   Emitted by [`buffer:reload()`]().
+-- @field _G.events.FILE_AFTER_RELOAD (string)
+--   Emitted after reloading the current file.
+--   Emitted by [`buffer:reload()`]().
 -- @field _G.events.FILE_BEFORE_SAVE (string)
 --   Emitted right before saving a file to disk.
 --   Emitted by [`buffer:save()`]().
@@ -38,6 +44,8 @@ module('io')]]
 -- Events.
 local events, events_connect = events, events.connect
 events.FILE_OPENED = 'file_opened'
+events.FILE_BEFORE_RELOAD = 'file_before_reload'
+events.FILE_AFTER_RELOAD = 'file_after_reload'
 events.FILE_BEFORE_SAVE = 'file_before_save'
 events.FILE_AFTER_SAVE = 'file_after_save'
 events.FILE_CHANGED = 'file_changed'
@@ -153,7 +161,7 @@ end
 local function reload(buffer)
   if not buffer then buffer = _G.buffer end
   if not buffer.filename then return end
-  local pos, first_visible_line = buffer.current_pos, view.first_visible_line
+  if buffer == _G.buffer then events.emit(events.FILE_BEFORE_RELOAD) end
   local f = assert(io.open(buffer.filename, 'rb'))
   local text = f:read('a')
   f:close()
@@ -161,10 +169,7 @@ local function reload(buffer)
   buffer:set_text(text)
   buffer:set_save_point()
   buffer.mod_time = lfs.attributes(buffer.filename, 'modification')
-  if buffer == _G.buffer then
-    buffer:goto_pos(pos)
-    view.first_visible_line = first_visible_line
-  end
+  if buffer == _G.buffer then events.emit(events.FILE_AFTER_RELOAD) end
 end
 
 -- LuaDoc is in core/.buffer.luadoc.
-- 
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