| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2016 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. |
| */ |
| #include "../../SDL_internal.h" |
| |
| #if SDL_VIDEO_DRIVER_COCOA |
| |
| #include "SDL_assert.h" |
| #include "SDL_events.h" |
| #include "SDL_cocoamouse.h" |
| #include "SDL_cocoamousetap.h" |
| |
| #include "../../events/SDL_mouse_c.h" |
| |
| /* #define DEBUG_COCOAMOUSE */ |
| |
| #ifdef DEBUG_COCOAMOUSE |
| #define DLog(fmt, ...) printf("%s: " fmt "\n", __func__, ##__VA_ARGS__) |
| #else |
| #define DLog(...) do { } while (0) |
| #endif |
| |
| @implementation NSCursor (InvisibleCursor) |
| + (NSCursor *)invisibleCursor |
| { |
| static NSCursor *invisibleCursor = NULL; |
| if (!invisibleCursor) { |
| /* RAW 16x16 transparent GIF */ |
| static unsigned char cursorBytes[] = { |
| 0x47, 0x49, 0x46, 0x38, 0x37, 0x61, 0x10, 0x00, 0x10, 0x00, 0x80, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0xF9, 0x04, |
| 0x01, 0x00, 0x00, 0x01, 0x00, 0x2C, 0x00, 0x00, 0x00, 0x00, 0x10, |
| 0x00, 0x10, 0x00, 0x00, 0x02, 0x0E, 0x8C, 0x8F, 0xA9, 0xCB, 0xED, |
| 0x0F, 0xA3, 0x9C, 0xB4, 0xDA, 0x8B, 0xB3, 0x3E, 0x05, 0x00, 0x3B |
| }; |
| |
| NSData *cursorData = [NSData dataWithBytesNoCopy:&cursorBytes[0] |
| length:sizeof(cursorBytes) |
| freeWhenDone:NO]; |
| NSImage *cursorImage = [[[NSImage alloc] initWithData:cursorData] autorelease]; |
| invisibleCursor = [[NSCursor alloc] initWithImage:cursorImage |
| hotSpot:NSZeroPoint]; |
| } |
| |
| return invisibleCursor; |
| } |
| @end |
| |
| |
| static SDL_Cursor * |
| Cocoa_CreateDefaultCursor() |
| { @autoreleasepool |
| { |
| NSCursor *nscursor; |
| SDL_Cursor *cursor = NULL; |
| |
| nscursor = [NSCursor arrowCursor]; |
| |
| if (nscursor) { |
| cursor = SDL_calloc(1, sizeof(*cursor)); |
| if (cursor) { |
| cursor->driverdata = nscursor; |
| [nscursor retain]; |
| } |
| } |
| |
| return cursor; |
| }} |
| |
| static SDL_Cursor * |
| Cocoa_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y) |
| { @autoreleasepool |
| { |
| NSImage *nsimage; |
| NSCursor *nscursor = NULL; |
| SDL_Cursor *cursor = NULL; |
| |
| nsimage = Cocoa_CreateImage(surface); |
| if (nsimage) { |
| nscursor = [[NSCursor alloc] initWithImage: nsimage hotSpot: NSMakePoint(hot_x, hot_y)]; |
| } |
| |
| if (nscursor) { |
| cursor = SDL_calloc(1, sizeof(*cursor)); |
| if (cursor) { |
| cursor->driverdata = nscursor; |
| } else { |
| [nscursor release]; |
| } |
| } |
| |
| return cursor; |
| }} |
| |
| static SDL_Cursor * |
| Cocoa_CreateSystemCursor(SDL_SystemCursor id) |
| { @autoreleasepool |
| { |
| NSCursor *nscursor = NULL; |
| SDL_Cursor *cursor = NULL; |
| |
| switch(id) { |
| case SDL_SYSTEM_CURSOR_ARROW: |
| nscursor = [NSCursor arrowCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_IBEAM: |
| nscursor = [NSCursor IBeamCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_WAIT: |
| nscursor = [NSCursor arrowCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_CROSSHAIR: |
| nscursor = [NSCursor crosshairCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_WAITARROW: |
| nscursor = [NSCursor arrowCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_SIZENWSE: |
| case SDL_SYSTEM_CURSOR_SIZENESW: |
| nscursor = [NSCursor closedHandCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_SIZEWE: |
| nscursor = [NSCursor resizeLeftRightCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_SIZENS: |
| nscursor = [NSCursor resizeUpDownCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_SIZEALL: |
| nscursor = [NSCursor closedHandCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_NO: |
| nscursor = [NSCursor operationNotAllowedCursor]; |
| break; |
| case SDL_SYSTEM_CURSOR_HAND: |
| nscursor = [NSCursor pointingHandCursor]; |
| break; |
| default: |
| SDL_assert(!"Unknown system cursor"); |
| return NULL; |
| } |
| |
| if (nscursor) { |
| cursor = SDL_calloc(1, sizeof(*cursor)); |
| if (cursor) { |
| /* We'll free it later, so retain it here */ |
| [nscursor retain]; |
| cursor->driverdata = nscursor; |
| } |
| } |
| |
| return cursor; |
| }} |
| |
| static void |
| Cocoa_FreeCursor(SDL_Cursor * cursor) |
| { @autoreleasepool |
| { |
| NSCursor *nscursor = (NSCursor *)cursor->driverdata; |
| |
| [nscursor release]; |
| SDL_free(cursor); |
| }} |
| |
| static int |
| Cocoa_ShowCursor(SDL_Cursor * cursor) |
| { @autoreleasepool |
| { |
| SDL_VideoDevice *device = SDL_GetVideoDevice(); |
| SDL_Window *window = (device ? device->windows : NULL); |
| for (; window != NULL; window = window->next) { |
| SDL_WindowData *driverdata = (SDL_WindowData *)window->driverdata; |
| if (driverdata) { |
| [driverdata->nswindow performSelectorOnMainThread:@selector(invalidateCursorRectsForView:) |
| withObject:[driverdata->nswindow contentView] |
| waitUntilDone:NO]; |
| } |
| } |
| return 0; |
| }} |
| |
| static SDL_Window * |
| SDL_FindWindowAtPoint(const int x, const int y) |
| { |
| const SDL_Point pt = { x, y }; |
| SDL_Window *i; |
| for (i = SDL_GetVideoDevice()->windows; i; i = i->next) { |
| const SDL_Rect r = { i->x, i->y, i->w, i->h }; |
| if (SDL_PointInRect(&pt, &r)) { |
| return i; |
| } |
| } |
| |
| return NULL; |
| } |
| |
| static int |
| Cocoa_WarpMouseGlobal(int x, int y) |
| { |
| SDL_Mouse *mouse = SDL_GetMouse(); |
| if (mouse->focus) { |
| SDL_WindowData *data = (SDL_WindowData *) mouse->focus->driverdata; |
| if ([data->listener isMoving]) { |
| DLog("Postponing warp, window being moved."); |
| [data->listener setPendingMoveX:x Y:y]; |
| return 0; |
| } |
| } |
| const CGPoint point = CGPointMake((float)x, (float)y); |
| |
| Cocoa_HandleMouseWarp(point.x, point.y); |
| |
| CGWarpMouseCursorPosition(point); |
| |
| /* CGWarpMouse causes a short delay by default, which is preventable by |
| * Calling this directly after. CGSetLocalEventsSuppressionInterval can also |
| * prevent it, but it's deprecated as of OS X 10.6. |
| */ |
| if (!mouse->relative_mode) { |
| CGAssociateMouseAndMouseCursorPosition(YES); |
| } |
| |
| /* CGWarpMouseCursorPosition doesn't generate a window event, unlike our |
| * other implementations' APIs. Send what's appropriate. |
| */ |
| if (!mouse->relative_mode) { |
| SDL_Window *win = SDL_FindWindowAtPoint(x, y); |
| SDL_SetMouseFocus(win); |
| if (win) { |
| SDL_assert(win == mouse->focus); |
| SDL_SendMouseMotion(win, mouse->mouseID, 0, x - win->x, y - win->y); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static void |
| Cocoa_WarpMouse(SDL_Window * window, int x, int y) |
| { |
| Cocoa_WarpMouseGlobal(x + window->x, y + window->y); |
| } |
| |
| static int |
| Cocoa_SetRelativeMouseMode(SDL_bool enabled) |
| { |
| /* We will re-apply the relative mode when the window gets focus, if it |
| * doesn't have focus right now. |
| */ |
| SDL_Window *window = SDL_GetMouseFocus(); |
| if (!window) { |
| return 0; |
| } |
| |
| /* We will re-apply the relative mode when the window finishes being moved, |
| * if it is being moved right now. |
| */ |
| SDL_WindowData *data = (SDL_WindowData *) window->driverdata; |
| if ([data->listener isMoving]) { |
| return 0; |
| } |
| |
| CGError result; |
| if (enabled) { |
| DLog("Turning on."); |
| result = CGAssociateMouseAndMouseCursorPosition(NO); |
| } else { |
| DLog("Turning off."); |
| result = CGAssociateMouseAndMouseCursorPosition(YES); |
| } |
| if (result != kCGErrorSuccess) { |
| return SDL_SetError("CGAssociateMouseAndMouseCursorPosition() failed"); |
| } |
| |
| /* The hide/unhide calls are redundant most of the time, but they fix |
| * https://bugzilla.libsdl.org/show_bug.cgi?id=2550 |
| */ |
| if (enabled) { |
| [NSCursor hide]; |
| } else { |
| [NSCursor unhide]; |
| } |
| return 0; |
| } |
| |
| static int |
| Cocoa_CaptureMouse(SDL_Window *window) |
| { |
| /* our Cocoa event code already tracks the mouse outside the window, |
| so all we have to do here is say "okay" and do what we always do. */ |
| return 0; |
| } |
| |
| static Uint32 |
| Cocoa_GetGlobalMouseState(int *x, int *y) |
| { |
| const NSUInteger cocoaButtons = [NSEvent pressedMouseButtons]; |
| const NSPoint cocoaLocation = [NSEvent mouseLocation]; |
| Uint32 retval = 0; |
| |
| for (NSScreen *screen in [NSScreen screens]) { |
| NSRect frame = [screen frame]; |
| if (NSMouseInRect(cocoaLocation, frame, NO)) { |
| *x = (int) cocoaLocation.x; |
| *y = (int) ((frame.origin.y + frame.size.height) - cocoaLocation.y); |
| break; |
| } |
| } |
| |
| retval |= (cocoaButtons & (1 << 0)) ? SDL_BUTTON_LMASK : 0; |
| retval |= (cocoaButtons & (1 << 1)) ? SDL_BUTTON_RMASK : 0; |
| retval |= (cocoaButtons & (1 << 2)) ? SDL_BUTTON_MMASK : 0; |
| retval |= (cocoaButtons & (1 << 3)) ? SDL_BUTTON_X1MASK : 0; |
| retval |= (cocoaButtons & (1 << 4)) ? SDL_BUTTON_X2MASK : 0; |
| |
| return retval; |
| } |
| |
| void |
| Cocoa_InitMouse(_THIS) |
| { |
| SDL_Mouse *mouse = SDL_GetMouse(); |
| |
| mouse->driverdata = SDL_calloc(1, sizeof(SDL_MouseData)); |
| |
| mouse->CreateCursor = Cocoa_CreateCursor; |
| mouse->CreateSystemCursor = Cocoa_CreateSystemCursor; |
| mouse->ShowCursor = Cocoa_ShowCursor; |
| mouse->FreeCursor = Cocoa_FreeCursor; |
| mouse->WarpMouse = Cocoa_WarpMouse; |
| mouse->WarpMouseGlobal = Cocoa_WarpMouseGlobal; |
| mouse->SetRelativeMouseMode = Cocoa_SetRelativeMouseMode; |
| mouse->CaptureMouse = Cocoa_CaptureMouse; |
| mouse->GetGlobalMouseState = Cocoa_GetGlobalMouseState; |
| |
| SDL_SetDefaultCursor(Cocoa_CreateDefaultCursor()); |
| |
| Cocoa_InitMouseEventTap(mouse->driverdata); |
| |
| SDL_MouseData *driverdata = (SDL_MouseData*)mouse->driverdata; |
| const NSPoint location = [NSEvent mouseLocation]; |
| driverdata->lastMoveX = location.x; |
| driverdata->lastMoveY = location.y; |
| } |
| |
| void |
| Cocoa_HandleMouseEvent(_THIS, NSEvent *event) |
| { |
| switch ([event type]) { |
| case NSMouseMoved: |
| case NSLeftMouseDragged: |
| case NSRightMouseDragged: |
| case NSOtherMouseDragged: |
| break; |
| |
| default: |
| /* Ignore any other events. */ |
| return; |
| } |
| |
| SDL_Mouse *mouse = SDL_GetMouse(); |
| SDL_MouseData *driverdata = (SDL_MouseData*)mouse->driverdata; |
| if (!driverdata) { |
| return; /* can happen when returning from fullscreen Space on shutdown */ |
| } |
| |
| const SDL_bool seenWarp = driverdata->seenWarp; |
| driverdata->seenWarp = NO; |
| |
| const NSPoint location = [NSEvent mouseLocation]; |
| const CGFloat lastMoveX = driverdata->lastMoveX; |
| const CGFloat lastMoveY = driverdata->lastMoveY; |
| driverdata->lastMoveX = location.x; |
| driverdata->lastMoveY = location.y; |
| DLog("Last seen mouse: (%g, %g)", location.x, location.y); |
| |
| /* Non-relative movement is handled in -[Cocoa_WindowListener mouseMoved:] */ |
| if (!mouse->relative_mode) { |
| return; |
| } |
| |
| /* Ignore events that aren't inside the client area (i.e. title bar.) */ |
| if ([event window]) { |
| NSRect windowRect = [[[event window] contentView] frame]; |
| if (!NSMouseInRect([event locationInWindow], windowRect, NO)) { |
| return; |
| } |
| } |
| |
| float deltaX = [event deltaX]; |
| float deltaY = [event deltaY]; |
| |
| if (seenWarp) { |
| deltaX += (lastMoveX - driverdata->lastWarpX); |
| deltaY += ((CGDisplayPixelsHigh(kCGDirectMainDisplay) - lastMoveY) - driverdata->lastWarpY); |
| |
| DLog("Motion was (%g, %g), offset to (%g, %g)", [event deltaX], [event deltaY], deltaX, deltaY); |
| } |
| |
| SDL_SendMouseMotion(mouse->focus, mouse->mouseID, 1, (int)deltaX, (int)deltaY); |
| } |
| |
| void |
| Cocoa_HandleMouseWheel(SDL_Window *window, NSEvent *event) |
| { |
| SDL_Mouse *mouse = SDL_GetMouse(); |
| |
| CGFloat x = -[event deltaX]; |
| CGFloat y = [event deltaY]; |
| SDL_MouseWheelDirection direction = SDL_MOUSEWHEEL_NORMAL; |
| |
| if ([event respondsToSelector:@selector(isDirectionInvertedFromDevice)]) { |
| if ([event isDirectionInvertedFromDevice] == YES) { |
| direction = SDL_MOUSEWHEEL_FLIPPED; |
| } |
| } |
| |
| if (x > 0) { |
| x = SDL_ceil(x); |
| } else if (x < 0) { |
| x = SDL_floor(x); |
| } |
| if (y > 0) { |
| y = SDL_ceil(y); |
| } else if (y < 0) { |
| y = SDL_floor(y); |
| } |
| SDL_SendMouseWheel(window, mouse->mouseID, (int)x, (int)y, direction); |
| } |
| |
| void |
| Cocoa_HandleMouseWarp(CGFloat x, CGFloat y) |
| { |
| /* This makes Cocoa_HandleMouseEvent ignore the delta caused by the warp, |
| * since it gets included in the next movement event. |
| */ |
| SDL_MouseData *driverdata = (SDL_MouseData*)SDL_GetMouse()->driverdata; |
| driverdata->lastWarpX = x; |
| driverdata->lastWarpY = y; |
| driverdata->seenWarp = SDL_TRUE; |
| |
| DLog("(%g, %g)", x, y); |
| } |
| |
| void |
| Cocoa_QuitMouse(_THIS) |
| { |
| SDL_Mouse *mouse = SDL_GetMouse(); |
| if (mouse) { |
| if (mouse->driverdata) { |
| Cocoa_QuitMouseEventTap(((SDL_MouseData*)mouse->driverdata)); |
| } |
| |
| SDL_free(mouse->driverdata); |
| } |
| } |
| |
| #endif /* SDL_VIDEO_DRIVER_COCOA */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |
