[Android] Moved getActivity(ActivitySttates*) to the system module

Somehow this function gets stripped by compilators if I put this in the main module (which is what we want).
To solve this issue (and to avoid additional dependencies on sfml-window), I moved it to the system module since all SFML modules depend on it.

src/SFML/Audio/CMakeLists.txt

@@ -64,6 +64,6 @@ sfml_add_library(sfml-audio
 else()
 sfml_add_library(sfml-audio
                  SOURCES ${SRC}
-                 DEPENDS sfml-system sfml-window
+                 DEPENDS sfml-system
                  EXTERNAL_LIBS ${AUDIO_EXT_LIBS})
 endif()

src/SFML/Audio/SoundFile.cpp

@@ -27,7 +27,7 @@
 ////////////////////////////////////////////////////////////
 #include <SFML/Audio/SoundFile.hpp>
 #ifdef SFML_SYSTEM_ANDROID
-    #include <SFML/Window/Android/Activity.hpp>
+    #include <SFML/System/Android/Activity.hpp>
     #include <SFML/System/Lock.hpp>
 #endif
 #include <SFML/System/InputStream.hpp>

src/SFML/CMakeLists.txt

@@ -41,11 +41,11 @@ set(CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake/Modules/")
 set(LIBRARY_OUTPUT_PATH "${PROJECT_BINARY_DIR}/lib")
 
 # add the modules subdirectories
-add_subdirectory(System)
-add_subdirectory(Window)
+add_subdirectory(System)
 if(SFML_OS_WINDOWS OR SFML_OS_ANDROID OR SFML_OS_IOS)
     add_subdirectory(Main)
 endif()
+add_subdirectory(Window)
 add_subdirectory(Network)
 add_subdirectory(Graphics)
 if(NOT SFML_OS_IOS OR NOT (SFML_OS_ANDROID AND ${ANDROID_ABI} MATCHES "mips"))

src/SFML/Graphics/Font.cpp

@@ -28,7 +28,7 @@
 #include <SFML/Graphics/Font.hpp>
 #include <SFML/Graphics/GLCheck.hpp>
 #ifdef SFML_SYSTEM_ANDROID
-    #include <SFML/Window/Android/Activity.hpp>
+    #include <SFML/System/Android/Activity.hpp>
     #include <SFML/System/Lock.hpp>
 #endif
 #include <SFML/System/InputStream.hpp>

src/SFML/Graphics/Image.cpp

@@ -28,7 +28,7 @@
 #include <SFML/Graphics/Image.hpp>
 #include <SFML/Graphics/ImageLoader.hpp>
 #ifdef SFML_SYSTEM_ANDROID
-    #include <SFML/Window/Android/Activity.hpp>
+    #include <SFML/System/Android/Activity.hpp>
     #include <SFML/System/Lock.hpp>
 #endif
 #include <SFML/System/Err.hpp>

src/SFML/Main/MainAndroid.cpp

@@ -23,13 +23,24 @@
 ////////////////////////////////////////////////////////////
 
 
+////////////////////////////////////////////////////////////
+// Android specific: we define the ANativeActivity_onCreate
+// entry point, handling all the native activity stuff, then
+// we call the user defined (and poratble) main function in
+// an external thread so developers can keep a portable code
+////////////////////////////////////////////////////////////
+
+
+////////////////////////////////////////////////////////////
+// Headers
+////////////////////////////////////////////////////////////
 #include <SFML/Config.hpp>
 
 #ifdef SFML_SYSTEM_ANDROID
 
-#include <SFML/Window/Android/Activity.hpp>
 #include <SFML/Window/EGLCheck.hpp>
 #include <SFML/Window/Keyboard.hpp>
+#include <SFML/System/Android/Activity.hpp>
 #include <SFML/System/Sleep.hpp>
 #include <SFML/System/Thread.hpp>
 #include <SFML/System/Lock.hpp>
@@ -41,7 +52,6 @@ namespace sf
 {
 namespace priv
 {
-
 Keyboard::Key mapAndroidKeyToSFMLKey(int32_t key)
 {
     switch (key)

src/SFML/System/Android/Activity.cpp

@@ -1,6 +1,7 @@
 ////////////////////////////////////////////////////////////
 //
 // SFML - Simple and Fast Multimedia Library
+// Copyright (C) 2007-2013 Laurent Gomila (laurent.gom@gmail.com)
 // Copyright (C) 2013 Jonathan De Wachter (dewachter.jonathan@gmail.com)
 //
 // This software is provided 'as-is', without any express or implied warranty.
@@ -22,20 +23,24 @@
 //
 ////////////////////////////////////////////////////////////
 
-#include <SFML/Window/Android/Activity.hpp>
+
+////////////////////////////////////////////////////////////
+// Headers
+////////////////////////////////////////////////////////////
+#include <SFML/System/Android/Activity.hpp>
 
 namespace sf
 {
-namespace priv 
+namespace priv
 {
-    ActivityStates* getActivity(ActivityStates* initializedStates)
-    {
-        static ActivityStates* states = NULL;
+ActivityStates* getActivity(ActivityStates* initializedStates)
+{
+    static ActivityStates* states = NULL;
 
-        if (!states)
-            states = initializedStates;
+    if (!states)
+        states = initializedStates;
 
-        return states;
-    }
+    return states;
+}
 }
 }

src/SFML/System/Android/Activity.hpp

@@ -70,7 +70,8 @@ struct ActivityStates
     bool updated;
 };
 
-SFML_WINDOW_API ActivityStates* getActivity(ActivityStates* initializedStates=NULL);
+SFML_SYSTEM_API ActivityStates* getActivity(ActivityStates* initializedStates=NULL);
+
 } // namespace priv
 } // namespace sf
 

src/SFML/System/CMakeLists.txt

@@ -66,6 +66,14 @@ else()
         ${SRCROOT}/Unix/ThreadLocalImpl.cpp
         ${SRCROOT}/Unix/ThreadLocalImpl.hpp
     )
+
+    if(ANDROID)
+        set(PLATFORM_SRC ${PLATFORM_SRC}
+            ${SRCROOT}/Android/Activity.hpp
+            ${SRCROOT}/Android/Activity.cpp
+        )
+    endif()
+
     source_group("unix" FILES ${PLATFORM_SRC})
 endif()
 

src/SFML/Window/Android/EglContext.cpp

@@ -27,7 +27,7 @@
 // Headers
 ////////////////////////////////////////////////////////////
 #include <SFML/Window/Android/EglContext.hpp>
-#include <SFML/Window/Android/Activity.hpp>
+#include <SFML/System/Android/Activity.hpp>
 #include <SFML/OpenGL.hpp>
 #include <SFML/System/Err.hpp>
 #include <SFML/System/Sleep.hpp>

src/SFML/Window/Android/InputImpl.cpp

@@ -26,7 +26,7 @@
 // Headers
 ////////////////////////////////////////////////////////////
 #include <SFML/Window/Android/InputImpl.hpp>
-#include <SFML/Window/Android/Activity.hpp>
+#include <SFML/System/Android/Activity.hpp>
 #include <SFML/System/Lock.hpp>
 #include <jni.h>
 

src/SFML/Window/Android/VideoModeImpl.cpp

@@ -26,7 +26,7 @@
 // Headers
 ////////////////////////////////////////////////////////////
 #include <SFML/Window/VideoModeImpl.hpp>
-#include <SFML/Window/Android/Activity.hpp>
+#include <SFML/System/Android/Activity.hpp>
 #include <SFML/System/Vector2.hpp>
 #include <SFML/System/Sleep.hpp>
 #include <SFML/System/Lock.hpp>

src/SFML/Window/Android/WindowImplAndroid.cpp

@@ -29,7 +29,7 @@
 #include <SFML/Window/WindowStyle.hpp> // important to be included first (conflict with None)
 #include <SFML/Window/Android/WindowImplAndroid.hpp>
 #include <SFML/Window/Event.hpp>
-#include <SFML/Window/Android/Activity.hpp>
+#include <SFML/System/Android/Activity.hpp>
 #include <SFML/System/Lock.hpp>
 
 

src/SFML/Window/CMakeLists.txt

@@ -148,9 +148,7 @@ elseif(ANDROID)
         ${SRCROOT}/Android/InputImpl.hpp
         ${SRCROOT}/Android/InputImpl.cpp
         ${SRCROOT}/Android/JoystickImpl.hpp
-        ${SRCROOT}/Android/JoystickImpl.cpp
-        ${SRCROOT}/Android/Activity.hpp
-        ${SRCROOT}/Android/Activity.cpp)
+        ${SRCROOT}/Android/JoystickImpl.cpp)
     source_group("android" FILES ${PLATFORM_SRC})
 endif()