Update

docs_md/components/base/back_handler_manual.md

@@ -0,0 +1,47 @@
+# Druid Back Handler Component
+
+## Description
+
+The Back Handler component is designed to handle back button actions, including the Android back button and the Backspace key. It provides a simple way to implement back navigation or other actions when the user presses the back button.
+
+## Features
+
+- Handles Android back button and Backspace key presses
+- Customizable callback function
+- Optional parameters to pass to the callback
+- Event-based architecture
+
+## Basic Usage
+
+```lua
+local callback = function(self, params)
+    -- Handle back action here
+    print("Back button pressed!")
+end
+
+local params = { custom_data = "value" }
+local back_handler = self.druid:new_back_handler(callback, params)
+```
+
+### Parameters
+
+- **callback**: (optional) Function to call when back button is pressed
+- **params**: (optional) Custom data to pass to the callback
+
+## Events
+
+The Back Handler component provides an event you can subscribe to:
+
+```lua
+-- Subscribe to back event
+back_handler.on_back:subscribe(function(self, params)
+    print("Back button was pressed!")
+end)
+```
+
+## Notes
+
+- The Back Handler component requires proper key triggers setup in your `input.binding` file for correct operation
+- Back Handler is recommended to be placed in every game window to handle closing or in the main screen to call settings windows
+- Multiple Back Handlers can be active at the same time, but only the first one that processes the input will trigger its callback
+- Back Handler reacts on release action of ACTION_BACK or ACTION_BACKSPACE