X-Git-Url: http://nitlanguage.org

diff --git a/lib/app/app_base.nit b/lib/app/app_base.nit
index e1f8d78..5c2a902 100644
--- a/lib/app/app_base.nit
+++ b/lib/app/app_base.nit
@@ -19,6 +19,7 @@ module app_base is
 	new_annotation app_name
 	new_annotation app_namespace
 	new_annotation app_version
+	new_annotation app_files
 end
 
 # App subclasses are cross-platform applications
@@ -50,26 +51,57 @@ abstract class AppComponent
 	# The application is being created
 	#
 	# You should build the UI at this time.
+	#
+	# Triggers are platform specific:
+	# * Android: `Activity.onCreate`
+	# * iOS: `UIApplicationDelegate application:didFinishLaunchingWithOptions`
 	fun on_create do end
 
 	# The application enters the active state, it is in the foreground and interactive
+	#
+	# Triggers are platform specific:
+	# * Android: `Activity.onResume`
+	# * iOS: `UIApplicationDelegate applicationDidBecomeActive`
 	fun on_resume do end
 
 	# The application leaves the active state but is still partially visible
 	#
-	# It may still be visible in the background.
 	# It may then go back to `on_resume` or `on_stop`.
+	#
+	# Triggers are platform specific:
+	# * Android: `Activity.onPause`
+	# * iOS: `UIApplicationDelegate applicationWillResignActive`
 	fun on_pause do end
 
 	# The application is completely hidden from the user
 	#
-	# It may then be destroyed (`on_destroy`) or go back to `on_start`.
+	# It may then be destroyed or go back to a paused state with `on_restart`.
+	#
+	# Triggers are platform specific:
+	# * Android: `Activity.onStop`
+	# * iOS: `UIApplicationDelegate applicationDidEnterBackground`
 	fun on_stop do end
 
+	# The application returns to a visible state from a previous `on_stop`
+	#
+	# Triggers are platform specific:
+	# * Android: `Activity.onRestart`
+	# * iOS: `UIApplicationDelegate applicationWillEnterForeground`
+	fun on_restart do end
+
 	# The application may be destroyed soon, save its state for a future `on_restore_state`
+	#
+	# Triggers are platform specific:
+	# * Android: `Activity.onSaveInstanceState`
+	# * iOS: `UIApplicationDelegate applicationDidEnterBackground`
 	fun on_save_state do end
 
 	# The application is launching, restore its state from a previous `on_save_state`
+	#
+	# Triggers are platform specific:
+	# * Android: `Activity.onCreate`, _not_ `Activity.onRestoreInstanceState`
+	#   as it is trigged only if there is a previous Android specific save state.
+	# * iOS: `UIApplicationDelegate applicationDidEnterBackground`
 	fun on_restore_state do end
 end
 
@@ -83,5 +115,23 @@ end
 # The running `App`
 fun app: App do return once new App
 
+# Platform bound at compilation (by importation or -m)
+#
+# This value should not be used to decide the behavior of the software.
+# Class refinement provide a safer and a static solution to apply variations.
+# However, this value can be used in log files and communications with servers.
+fun bound_platform: String do return "none"
+
+# Test if the application was bound to a platform, if not crash
+private fun test_bound_platform
+do
+	print_error "Apps must be bound to a platform at compilation using `-m linux` or `-m android`"
+	exit 1
+end
+
+if "NIT_TESTING".environ == "true" then exit 0
+
+test_bound_platform
+
 app.setup
 app.run