1 files changed, 56 insertions, 19 deletions
diff --git a/plugins/centerdoc.lua b/plugins/centerdoc.lua
index a771925..fb5943c 100644
--- a/plugins/centerdoc.lua
+++ b/plugins/centerdoc.lua
@@ -8,7 +8,8 @@ local treeview = require "plugins.treeview"
 local DocView = require "core.docview"
 
 config.plugins.centerdoc = common.merge({
-  enable = true
+  enable = true,
+  zen_mode = false
 }, config.plugins.centerdoc)
 
 local draw_line_gutter = DocView.draw_line_gutter
@@ -38,33 +39,69 @@ function DocView:get_gutter_width()
   end
 end
 
-local zen_mode = false
+
 local previous_win_status = system.get_window_mode()
 local previous_treeview_status = treeview.visible
 local previous_statusbar_status = core.status_view.visible
 
+local function toggle_zen_mode(enabled)
+  config.plugins.centerdoc.zen_mode = enabled
+
+  if config.plugins.centerdoc.zen_mode then
+    previous_win_status = system.get_window_mode()
+    previous_treeview_status = treeview.visible
+    previous_statusbar_status = core.status_view.visible
+
+    config.plugins.centerdoc.enable = true
+    system.set_window_mode("fullscreen")
+    treeview.visible = false
+    command.perform "status-bar:hide"
+  else
+    config.plugins.centerdoc.enable = false
+    system.set_window_mode(previous_win_status)
+    treeview.visible = previous_treeview_status
+    core.status_view.visible = previous_statusbar_status
+  end
+end
+
+local on_startup = true
+
+-- The config specification used by the settings gui
+config.plugins.centerdoc.config_spec = {
+  name = "Center Document",
+  {
+    label = "Enable",
+    description = "Activates document centering by default.",
+    path = "enable",
+    type = "toggle",
+    default = true
+  },
+  {
+    label = "Zen Mode",
+    description = "Activates zen mode by default.",
+    path = "zen_mode",
+    type = "toggle",
+    default = false,
+    on_apply = function(enabled)
+      if on_startup then
+        core.add_thread(function()
+          toggle_zen_mode(enabled)
+        end)
+        on_startup = false
+      else
+        toggle_zen_mode(enabled)
+      end
+    end
+  }
+}
+
+
 command.add(nil, {
   ["center-doc:toggle"] = function()
     config.plugins.centerdoc.enable = not config.plugins.centerdoc.enable
   end,
   ["center-doc:zen-mode-toggle"] = function()
-    zen_mode = not zen_mode
-
-    if zen_mode then
-      previous_win_status = system.get_window_mode()
-      previous_treeview_status = treeview.visible
-      previous_statusbar_status = core.status_view.visible
-
-      config.plugins.centerdoc.enable = true
-      system.set_window_mode("fullscreen")
-      treeview.visible = false
-      command.perform "status-bar:hide"
-    else
-      config.plugins.centerdoc.enable = false
-      system.set_window_mode(previous_win_status)
-      treeview.visible = previous_treeview_status
-      core.status_view.visible = previous_statusbar_status
-    end
+    toggle_zen_mode(not config.plugins.centerdoc.zen_mode)
   end,
 })