3 files changed, 12 insertions, 1 deletions
diff --git a/lua/astal/application.lua b/lua/astal/application.lua
index 551367a..8402a59 100644
--- a/lua/astal/application.lua
+++ b/lua/astal/application.lua
@@ -25,7 +25,7 @@ local app = AstalLua()
 ---@field cursor_theme? string
 ---@field css? string
 ---@field hold? boolean
----@field request_handler? fun(msg: string, response: fun(res: string))
+---@field request_handler? fun(msg: string, response: fun(res: any))
 
 ---@param config StartConfig | nil
 ---@param callback function | nil
diff --git a/lua/astal/init.lua b/lua/astal/init.lua
index c247533..37c7119 100644
--- a/lua/astal/init.lua
+++ b/lua/astal/init.lua
@@ -1,6 +1,7 @@
 local lgi = require("lgi")
 local Astal = lgi.require("Astal", "0.1")
 local Gtk = lgi.require("Gtk", "3.0")
+local Gdk = lgi.require("Gdk", "3.0")
 local GObject = lgi.require("GObject", "2.0")
 local Widget = require("astal.widget")
 local Variable = require("astal.variable")
@@ -23,6 +24,7 @@ return {
 
     Astal = Astal,
     Gtk = Gtk,
+    Gdk = Gdk,
     GObject = GObject,
     GLib = lgi.require("GLib", "2.0"),
     Gio = lgi.require("Gio", "2.0"),
diff --git a/lua/astal/widget.lua b/lua/astal/widget.lua
index 2f58b7a..7be240f 100644
--- a/lua/astal/widget.lua
+++ b/lua/astal/widget.lua
@@ -3,6 +3,7 @@ local Astal = lgi.require("Astal", "0.1")
 local Gtk = lgi.require("Gtk", "3.0")
 local GObject = lgi.require("GObject", "2.0")
 local Binding = require("astal.binding")
+local exec_async = require("astal.process").exec_async
 
 local function filter(tbl, fn)
     local copy = {}
@@ -101,6 +102,14 @@ local function astalify(ctor)
             end
         end
 
+        for prop, value in pairs(props) do
+            if string.sub(prop, 0, 2) == "on" and type(value) ~= "function" then
+                props[prop] = function()
+                    exec_async(value, print, print)
+                end
+            end
+        end
+
         local widget = ctor(props)
 
         for prop, binding in pairs(bindings) do