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diff --git a/source/3rd-party/SDL2/src/main/haiku/SDL_BApp.h b/source/3rd-party/SDL2/src/main/haiku/SDL_BApp.h
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+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#ifndef SDL_BAPP_H
+#define SDL_BAPP_H
+
+#include <InterfaceKit.h>
+#if SDL_VIDEO_OPENGL
+#include <OpenGLKit.h>
+#endif
+
+#include "../../video/haiku/SDL_bkeyboard.h"
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "../../SDL_internal.h"
+
+#include "SDL_video.h"
+
+/* Local includes */
+#include "../../events/SDL_events_c.h"
+#include "../../video/haiku/SDL_bframebuffer.h"
+
+#ifdef __cplusplus
+}
+#endif
+
+#include <vector>
+
+
+
+
+/* Forward declarations */
+class SDL_BWin;
+
+/* Message constants */
+enum ToSDL {
+    /* Intercepted by BWindow on its way to BView */
+    BAPP_MOUSE_MOVED,
+    BAPP_MOUSE_BUTTON,
+    BAPP_MOUSE_WHEEL,
+    BAPP_KEY,
+    BAPP_REPAINT,           /* from _UPDATE_ */
+    /* From BWindow */
+    BAPP_MAXIMIZE,          /* from B_ZOOM */
+    BAPP_MINIMIZE,
+    BAPP_RESTORE,           /* TODO: IMPLEMENT! */
+    BAPP_SHOW,
+    BAPP_HIDE,
+    BAPP_MOUSE_FOCUS,       /* caused by MOUSE_MOVE */
+    BAPP_KEYBOARD_FOCUS,    /* from WINDOW_ACTIVATED */
+    BAPP_WINDOW_CLOSE_REQUESTED,
+    BAPP_WINDOW_MOVED,
+    BAPP_WINDOW_RESIZED,
+    BAPP_SCREEN_CHANGED
+};
+
+
+
+/* Create a descendant of BApplication */
+class SDL_BApp : public BApplication {
+public:
+    SDL_BApp(const char* signature) :
+        BApplication(signature) {
+#if SDL_VIDEO_OPENGL
+        _current_context = NULL;
+#endif
+    }
+
+
+    virtual ~SDL_BApp() {
+    }
+
+
+
+        /* Event-handling functions */
+    virtual void MessageReceived(BMessage* message) {
+        /* Sort out SDL-related messages */
+        switch ( message->what ) {
+        case BAPP_MOUSE_MOVED:
+            _HandleMouseMove(message);
+            break;
+
+        case BAPP_MOUSE_BUTTON:
+            _HandleMouseButton(message);
+            break;
+
+        case BAPP_MOUSE_WHEEL:
+            _HandleMouseWheel(message);
+            break;
+
+        case BAPP_KEY:
+            _HandleKey(message);
+            break;
+
+        case BAPP_REPAINT:
+            _HandleBasicWindowEvent(message, SDL_WINDOWEVENT_EXPOSED);
+            break;
+
+        case BAPP_MAXIMIZE:
+            _HandleBasicWindowEvent(message, SDL_WINDOWEVENT_MAXIMIZED);
+            break;
+
+        case BAPP_MINIMIZE:
+            _HandleBasicWindowEvent(message, SDL_WINDOWEVENT_MINIMIZED);
+            break;
+
+        case BAPP_SHOW:
+            _HandleBasicWindowEvent(message, SDL_WINDOWEVENT_SHOWN);
+            break;
+
+        case BAPP_HIDE:
+            _HandleBasicWindowEvent(message, SDL_WINDOWEVENT_HIDDEN);
+            break;
+
+        case BAPP_MOUSE_FOCUS:
+            _HandleMouseFocus(message);
+            break;
+
+        case BAPP_KEYBOARD_FOCUS:
+            _HandleKeyboardFocus(message);
+            break;
+
+        case BAPP_WINDOW_CLOSE_REQUESTED:
+            _HandleBasicWindowEvent(message, SDL_WINDOWEVENT_CLOSE);
+            break;
+
+        case BAPP_WINDOW_MOVED:
+            _HandleWindowMoved(message);
+            break;
+
+        case BAPP_WINDOW_RESIZED:
+            _HandleWindowResized(message);
+            break;
+
+        case BAPP_SCREEN_CHANGED:
+            /* TODO: Handle screen resize or workspace change */
+            break;
+
+        default:
+           BApplication::MessageReceived(message);
+           break;
+        }
+    }
+
+    /* Window creation/destruction methods */
+    int32 GetID(SDL_Window *win) {
+        int32 i;
+        for(i = 0; i < _GetNumWindowSlots(); ++i) {
+            if( GetSDLWindow(i) == NULL ) {
+                _SetSDLWindow(win, i);
+                return i;
+            }
+        }
+
+        /* Expand the vector if all slots are full */
+        if( i == _GetNumWindowSlots() ) {
+            _PushBackWindow(win);
+            return i;
+        }
+
+        /* TODO: error handling */
+        return 0;
+    }
+
+    /* FIXME: Bad coding practice, but I can't include SDL_BWin.h here.  Is
+       there another way to do this? */
+    void ClearID(SDL_BWin *bwin); /* Defined in SDL_BeApp.cc */
+
+
+    SDL_Window *GetSDLWindow(int32 winID) {
+        return _window_map[winID];
+    }
+
+#if SDL_VIDEO_OPENGL
+    void SetCurrentContext(BGLView *newContext) {
+        if(_current_context)
+            _current_context->UnlockGL();
+        _current_context = newContext;
+        if (_current_context)
+            _current_context->LockGL();
+    }
+#endif
+
+private:
+    /* Event management */
+    void _HandleBasicWindowEvent(BMessage *msg, int32 sdlEventType) {
+        SDL_Window *win;
+        int32 winID;
+        if(
+            !_GetWinID(msg, &winID)
+        ) {
+            return;
+        }
+        win = GetSDLWindow(winID);
+        SDL_SendWindowEvent(win, sdlEventType, 0, 0);
+    }
+
+    void _HandleMouseMove(BMessage *msg) {
+        SDL_Window *win;
+        int32 winID;
+        int32 x = 0, y = 0;
+        if(
+            !_GetWinID(msg, &winID) ||
+            msg->FindInt32("x", &x) != B_OK || /* x movement */
+            msg->FindInt32("y", &y) != B_OK    /* y movement */
+        ) {
+            return;
+        }
+        win = GetSDLWindow(winID);
+        SDL_SendMouseMotion(win, 0, 0, x, y);
+
+        /* Tell the application that the mouse passed over, redraw needed */
+        HAIKU_UpdateWindowFramebuffer(NULL,win,NULL,-1);
+    }
+
+    void _HandleMouseButton(BMessage *msg) {
+        SDL_Window *win;
+        int32 winID;
+        int32 button, state;    /* left/middle/right, pressed/released */
+        if(
+            !_GetWinID(msg, &winID) ||
+            msg->FindInt32("button-id", &button) != B_OK ||
+            msg->FindInt32("button-state", &state) != B_OK
+        ) {
+            return;
+        }
+        win = GetSDLWindow(winID);
+        SDL_SendMouseButton(win, 0, state, button);
+    }
+
+    void _HandleMouseWheel(BMessage *msg) {
+        SDL_Window *win;
+        int32 winID;
+        int32 xTicks, yTicks;
+        if(
+            !_GetWinID(msg, &winID) ||
+            msg->FindInt32("xticks", &xTicks) != B_OK ||
+            msg->FindInt32("yticks", &yTicks) != B_OK
+        ) {
+            return;
+        }
+        win = GetSDLWindow(winID);
+        SDL_SendMouseWheel(win, 0, xTicks, yTicks, SDL_MOUSEWHEEL_NORMAL);
+    }
+
+    void _HandleKey(BMessage *msg) {
+        int32 scancode, state;  /* scancode, pressed/released */
+        if(
+            msg->FindInt32("key-state", &state) != B_OK ||
+            msg->FindInt32("key-scancode", &scancode) != B_OK
+        ) {
+            return;
+        }
+
+        /* Make sure this isn't a repeated event (key pressed and held) */
+        if(state == SDL_PRESSED && HAIKU_GetKeyState(scancode) == SDL_PRESSED) {
+            return;
+        }
+        HAIKU_SetKeyState(scancode, state);
+        SDL_SendKeyboardKey(state, HAIKU_GetScancodeFromBeKey(scancode));
+        
+        if (state == SDL_PRESSED && SDL_EventState(SDL_TEXTINPUT, SDL_QUERY)) {
+            const int8 *keyUtf8;
+            ssize_t count;
+            if (msg->FindData("key-utf8", B_INT8_TYPE, (const void**)&keyUtf8, &count) == B_OK) {
+                char text[SDL_TEXTINPUTEVENT_TEXT_SIZE];
+                SDL_zero(text);
+                SDL_memcpy(text, keyUtf8, count);
+                SDL_SendKeyboardText(text);
+            }
+        }
+    }
+
+    void _HandleMouseFocus(BMessage *msg) {
+        SDL_Window *win;
+        int32 winID;
+        bool bSetFocus; /* If false, lose focus */
+        if(
+            !_GetWinID(msg, &winID) ||
+            msg->FindBool("focusGained", &bSetFocus) != B_OK
+        ) {
+            return;
+        }
+        win = GetSDLWindow(winID);
+        if(bSetFocus) {
+            SDL_SetMouseFocus(win);
+        } else if(SDL_GetMouseFocus() == win) {
+            /* Only lose all focus if this window was the current focus */
+            SDL_SetMouseFocus(NULL);
+        }
+    }
+
+    void _HandleKeyboardFocus(BMessage *msg) {
+        SDL_Window *win;
+        int32 winID;
+        bool bSetFocus; /* If false, lose focus */
+        if(
+            !_GetWinID(msg, &winID) ||
+            msg->FindBool("focusGained", &bSetFocus) != B_OK
+        ) {
+            return;
+        }
+        win = GetSDLWindow(winID);
+        if(bSetFocus) {
+            SDL_SetKeyboardFocus(win);
+        } else if(SDL_GetKeyboardFocus() == win) {
+            /* Only lose all focus if this window was the current focus */
+            SDL_SetKeyboardFocus(NULL);
+        }
+    }
+
+    void _HandleWindowMoved(BMessage *msg) {
+        SDL_Window *win;
+        int32 winID;
+        int32 xPos, yPos;
+        /* Get the window id and new x/y position of the window */
+        if(
+            !_GetWinID(msg, &winID) ||
+            msg->FindInt32("window-x", &xPos) != B_OK ||
+            msg->FindInt32("window-y", &yPos) != B_OK
+        ) {
+            return;
+        }
+        win = GetSDLWindow(winID);
+        SDL_SendWindowEvent(win, SDL_WINDOWEVENT_MOVED, xPos, yPos);
+    }
+
+    void _HandleWindowResized(BMessage *msg) {
+        SDL_Window *win;
+        int32 winID;
+        int32 w, h;
+        /* Get the window id ]and new x/y position of the window */
+        if(
+            !_GetWinID(msg, &winID) ||
+            msg->FindInt32("window-w", &w) != B_OK ||
+            msg->FindInt32("window-h", &h) != B_OK
+        ) {
+            return;
+        }
+        win = GetSDLWindow(winID);
+        SDL_SendWindowEvent(win, SDL_WINDOWEVENT_RESIZED, w, h);
+    }
+
+    bool _GetWinID(BMessage *msg, int32 *winID) {
+        return msg->FindInt32("window-id", winID) == B_OK;
+    }
+
+
+
+    /* Vector functions: Wraps vector stuff in case we need to change
+       implementation */
+    void _SetSDLWindow(SDL_Window *win, int32 winID) {
+        _window_map[winID] = win;
+    }
+
+    int32 _GetNumWindowSlots() {
+        return _window_map.size();
+    }
+
+
+    void _PopBackWindow() {
+        _window_map.pop_back();
+    }
+
+    void _PushBackWindow(SDL_Window *win) {
+        _window_map.push_back(win);
+    }
+
+
+    /* Members */
+    std::vector<SDL_Window*> _window_map; /* Keeps track of SDL_Windows by index-id */
+
+#if SDL_VIDEO_OPENGL
+    BGLView      *_current_context;
+#endif
+};
+
+#endif