Add autosaveonfocuslost

Automatically saves files that were changed when the main window loses focus
by switching to another application.

1 files changed, 31 insertions, 0 deletions

diff --git a/plugins/autosaveonfocuslost.lua b/plugins/autosaveonfocuslost.lua
new file mode 100644
index 0000000..bc193a8
--- /dev/null
+++ b/plugins/autosaveonfocuslost.lua
@@ -0,0 +1,31 @@
+-- mod-version:1 -- lite-xl 1.16
+local core = require "core"
+local CommandView = require "core.commandview"
+local DocView = require "core.docview"
+local RootView = require "core.rootview"
+
+local on_focus_lost = RootView.on_focus_lost
+
+local function save_node(node)
+  if node.type == "leaf" then
+    local i = 1
+    while i <= #node.views do
+      local view = node.views[i]
+      if view:is(DocView) and not view:is(CommandView) and
+         view.doc.filename and view.doc:is_dirty() then
+        core.log("Saving doc \"%s\"", view.doc.filename)
+        view.doc:save()
+      end
+      i = i + 1
+    end
+  else
+    if node.a then save_node(node.a) end
+    if node.b then save_node(node.b) end
+  end
+end
+
+function RootView:on_focus_lost(...)
+  save_node(core.root_view.root_node)
+
+  return on_focus_lost(...)
+end