1 /* 2 * Copyright (c) 1998, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #include "awt.h" 27 #include "awt_Toolkit.h" 28 #include "awt_Component.h" 29 #include "awt_Robot.h" 30 #include "sun_awt_windows_WRobotPeer.h" 31 #include "java_awt_event_InputEvent.h" 32 #include <winuser.h> 33 34 AwtRobot::AwtRobot( jobject peer ) 35 { 36 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2); 37 m_peerObject = env->NewWeakGlobalRef(peer); 38 JNU_CHECK_EXCEPTION(env); 39 JNI_SET_PDATA(peer, this); 40 } 41 42 AwtRobot::~AwtRobot() 43 { 44 } 45 46 #ifndef SPI_GETMOUSESPEED 47 #define SPI_GETMOUSESPEED 112 48 #endif 49 50 #ifndef SPI_SETMOUSESPEED 51 #define SPI_SETMOUSESPEED 113 52 #endif 53 54 void AwtRobot::MouseMove( jint x, jint y) 55 { 56 // Fix for Bug 4288230. See Q193003 from MSDN. 57 int oldAccel[3], newAccel[3]; 58 INT_PTR oldSpeed, newSpeed; 59 BOOL bResult; 60 61 // The following values set mouse ballistics to 1 mickey/pixel. 62 newAccel[0] = 0; 63 newAccel[1] = 0; 64 newAccel[2] = 0; 65 newSpeed = 10; 66 67 // Save the Current Mouse Acceleration Constants 68 bResult = SystemParametersInfo(SPI_GETMOUSE,0,oldAccel,0); 69 bResult = SystemParametersInfo(SPI_GETMOUSESPEED, 0, &oldSpeed,0); 70 // Set the new Mouse Acceleration Constants (Disabled). 71 bResult = SystemParametersInfo(SPI_SETMOUSE,0,newAccel,SPIF_SENDCHANGE); 72 bResult = SystemParametersInfo(SPI_SETMOUSESPEED, 0, 73 // 4504963: Though the third argument to SystemParameterInfo is 74 // declared as a PVOID, as of Windows 2000 it is apparently 75 // interpreted as an int. (The MSDN docs for SPI_SETMOUSESPEED 76 // say that it's an integer between 1 and 20, the default being 77 // 10). Instead of passing the @ of the desired value, the 78 // value itself is now passed, cast as a PVOID so as to 79 // compile. -bchristi 10/02/2001 80 (PVOID)newSpeed, 81 SPIF_SENDCHANGE); 82 83 int primaryIndex = AwtWin32GraphicsDevice::GetDefaultDeviceIndex(); 84 Devices::InstanceAccess devices; 85 AwtWin32GraphicsDevice *device = devices->GetDevice(primaryIndex); 86 87 x = (device == NULL) ? x : device->ScaleUpX(x); 88 y = (device == NULL) ? y : device->ScaleUpY(y); 89 90 POINT curPos; 91 ::GetCursorPos(&curPos); 92 x -= curPos.x; 93 y -= curPos.y; 94 95 mouse_event(MOUSEEVENTF_MOVE,x,y,0,0); 96 // Move the cursor to the desired coordinates. 97 98 // Restore the old Mouse Acceleration Constants. 99 bResult = SystemParametersInfo(SPI_SETMOUSE,0, oldAccel, SPIF_SENDCHANGE); 100 bResult = SystemParametersInfo(SPI_SETMOUSESPEED, 0, (PVOID)oldSpeed, 101 SPIF_SENDCHANGE); 102 } 103 104 void AwtRobot::MousePress( jint buttonMask ) 105 { 106 DWORD dwFlags = 0L; 107 // According to MSDN: Software Driving Software 108 // application should consider SM_SWAPBUTTON to correctly emulate user with 109 // left handed mouse setup 110 BOOL bSwap = ::GetSystemMetrics(SM_SWAPBUTTON); 111 112 if ( buttonMask & java_awt_event_InputEvent_BUTTON1_MASK || 113 buttonMask & java_awt_event_InputEvent_BUTTON1_DOWN_MASK) 114 { 115 dwFlags |= !bSwap ? MOUSEEVENTF_LEFTDOWN : MOUSEEVENTF_RIGHTDOWN; 116 } 117 118 if ( buttonMask & java_awt_event_InputEvent_BUTTON3_MASK || 119 buttonMask & java_awt_event_InputEvent_BUTTON3_DOWN_MASK) 120 { 121 dwFlags |= !bSwap ? MOUSEEVENTF_RIGHTDOWN : MOUSEEVENTF_LEFTDOWN; 122 } 123 124 if ( buttonMask & java_awt_event_InputEvent_BUTTON2_MASK || 125 buttonMask & java_awt_event_InputEvent_BUTTON2_DOWN_MASK) 126 { 127 dwFlags |= MOUSEEVENTF_MIDDLEDOWN; 128 } 129 130 INPUT mouseInput = {0}; 131 mouseInput.type = INPUT_MOUSE; 132 mouseInput.mi.time = 0; 133 mouseInput.mi.dwFlags = dwFlags; 134 if ( buttonMask & AwtComponent::masks[3] ) { 135 mouseInput.mi.dwFlags = mouseInput.mi.dwFlags | MOUSEEVENTF_XDOWN; 136 mouseInput.mi.mouseData = XBUTTON1; 137 } 138 139 if ( buttonMask & AwtComponent::masks[4] ) { 140 mouseInput.mi.dwFlags = mouseInput.mi.dwFlags | MOUSEEVENTF_XDOWN; 141 mouseInput.mi.mouseData = XBUTTON2; 142 } 143 ::SendInput(1, &mouseInput, sizeof(mouseInput)); 144 } 145 146 void AwtRobot::MouseRelease( jint buttonMask ) 147 { 148 DWORD dwFlags = 0L; 149 // According to MSDN: Software Driving Software 150 // application should consider SM_SWAPBUTTON to correctly emulate user with 151 // left handed mouse setup 152 BOOL bSwap = ::GetSystemMetrics(SM_SWAPBUTTON); 153 154 if ( buttonMask & java_awt_event_InputEvent_BUTTON1_MASK || 155 buttonMask & java_awt_event_InputEvent_BUTTON1_DOWN_MASK) 156 { 157 dwFlags |= !bSwap ? MOUSEEVENTF_LEFTUP : MOUSEEVENTF_RIGHTUP; 158 } 159 160 if ( buttonMask & java_awt_event_InputEvent_BUTTON3_MASK || 161 buttonMask & java_awt_event_InputEvent_BUTTON3_DOWN_MASK) 162 { 163 dwFlags |= !bSwap ? MOUSEEVENTF_RIGHTUP : MOUSEEVENTF_LEFTUP; 164 } 165 166 if ( buttonMask & java_awt_event_InputEvent_BUTTON2_MASK || 167 buttonMask & java_awt_event_InputEvent_BUTTON2_DOWN_MASK) 168 { 169 dwFlags |= MOUSEEVENTF_MIDDLEUP; 170 } 171 172 INPUT mouseInput = {0}; 173 mouseInput.type = INPUT_MOUSE; 174 mouseInput.mi.time = 0; 175 mouseInput.mi.dwFlags = dwFlags; 176 177 if ( buttonMask & AwtComponent::masks[3] ) { 178 mouseInput.mi.dwFlags = mouseInput.mi.dwFlags | MOUSEEVENTF_XUP; 179 mouseInput.mi.mouseData = XBUTTON1; 180 } 181 182 if ( buttonMask & AwtComponent::masks[4] ) { 183 mouseInput.mi.dwFlags = mouseInput.mi.dwFlags | MOUSEEVENTF_XUP; 184 mouseInput.mi.mouseData = XBUTTON2; 185 } 186 ::SendInput(1, &mouseInput, sizeof(mouseInput)); 187 } 188 189 void AwtRobot::MouseWheel (jint wheelAmt) { 190 mouse_event(MOUSEEVENTF_WHEEL, 0, 0, wheelAmt * -1 * WHEEL_DELTA, 0); 191 } 192 193 inline jint AwtRobot::WinToJavaPixel(USHORT r, USHORT g, USHORT b) 194 { 195 jint value = 196 0xFF << 24 | // alpha channel is always turned all the way up 197 r << 16 | 198 g << 8 | 199 b << 0; 200 return value; 201 } 202 203 void AwtRobot::GetRGBPixels(jint x, jint y, jint width, jint height, jintArray pixelArray) 204 { 205 DASSERT(width > 0 && height > 0); 206 207 HDC hdcScreen = ::CreateDC(TEXT("DISPLAY"), NULL, NULL, NULL); 208 HDC hdcMem = ::CreateCompatibleDC(hdcScreen); 209 HBITMAP hbitmap; 210 HBITMAP hOldBitmap; 211 HPALETTE hOldPalette = NULL; 212 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2); 213 214 // create an offscreen bitmap 215 hbitmap = ::CreateCompatibleBitmap(hdcScreen, width, height); 216 if (hbitmap == NULL) { 217 throw std::bad_alloc(); 218 } 219 hOldBitmap = (HBITMAP)::SelectObject(hdcMem, hbitmap); 220 221 // REMIND: not multimon-friendly... 222 int primaryIndex = AwtWin32GraphicsDevice::GetDefaultDeviceIndex(); 223 hOldPalette = 224 AwtWin32GraphicsDevice::SelectPalette(hdcMem, primaryIndex); 225 AwtWin32GraphicsDevice::RealizePalette(hdcMem, primaryIndex); 226 227 Devices::InstanceAccess devices; 228 AwtWin32GraphicsDevice *device = devices->GetDevice(primaryIndex); 229 int sWidth = (device == NULL) ? width : device->ScaleUpX(width); 230 int sHeight = (device == NULL) ? height : device->ScaleUpY(height); 231 232 // copy screen image to offscreen bitmap 233 // CAPTUREBLT flag is required to capture WS_EX_LAYERED windows' contents 234 // correctly on Win2K/XP 235 if (width == sWidth && height == sHeight) { 236 VERIFY(::BitBlt(hdcMem, 0, 0, width, height, hdcScreen, x, y, 237 SRCCOPY | CAPTUREBLT) != 0); 238 } else { 239 int sX = (device == NULL) ? x : device->ScaleUpX(x); 240 int sY = (device == NULL) ? y : device->ScaleUpY(y); 241 VERIFY(::StretchBlt(hdcMem, 0, 0, width, height, 242 hdcScreen, sX, sY, sWidth, sHeight, 243 SRCCOPY | CAPTUREBLT) != 0); 244 } 245 246 static const int BITS_PER_PIXEL = 32; 247 static const int BYTES_PER_PIXEL = BITS_PER_PIXEL/8; 248 249 if (!IS_SAFE_SIZE_MUL(width, height)) throw std::bad_alloc(); 250 int numPixels = width*height; 251 if (!IS_SAFE_SIZE_MUL(BYTES_PER_PIXEL, numPixels)) throw std::bad_alloc(); 252 int pixelDataSize = BYTES_PER_PIXEL*numPixels; 253 DASSERT(pixelDataSize > 0 && pixelDataSize % 4 == 0); 254 // allocate memory for BITMAPINFO + pixel data 255 // 4620932: When using BI_BITFIELDS, GetDIBits expects an array of 3 256 // RGBQUADS to follow the BITMAPINFOHEADER, but we were only allocating the 257 // 1 that is included in BITMAPINFO. Thus, GetDIBits was writing off the 258 // end of our block of memory. Now we allocate sufficient memory. 259 // See MSDN docs for BITMAPINFOHEADER -bchristi 260 261 if (!IS_SAFE_SIZE_ADD(sizeof(BITMAPINFOHEADER) + 3 * sizeof(RGBQUAD), pixelDataSize)) { 262 throw std::bad_alloc(); 263 } 264 BITMAPINFO * pinfo = (BITMAPINFO *)(new BYTE[sizeof(BITMAPINFOHEADER) + 3 * sizeof(RGBQUAD) + pixelDataSize]); 265 266 // pixel data starts after 3 RGBQUADS for color masks 267 RGBQUAD *pixelData = &pinfo->bmiColors[3]; 268 269 // prepare BITMAPINFO for a 32-bit RGB bitmap 270 ::memset(pinfo, 0, sizeof(*pinfo)); 271 pinfo->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); 272 pinfo->bmiHeader.biWidth = width; 273 pinfo->bmiHeader.biHeight = -height; // negative height means a top-down DIB 274 pinfo->bmiHeader.biPlanes = 1; 275 pinfo->bmiHeader.biBitCount = BITS_PER_PIXEL; 276 pinfo->bmiHeader.biCompression = BI_BITFIELDS; 277 278 // Setup up color masks 279 static const RGBQUAD redMask = {0, 0, 0xFF, 0}; 280 static const RGBQUAD greenMask = {0, 0xFF, 0, 0}; 281 static const RGBQUAD blueMask = {0xFF, 0, 0, 0}; 282 283 pinfo->bmiColors[0] = redMask; 284 pinfo->bmiColors[1] = greenMask; 285 pinfo->bmiColors[2] = blueMask; 286 287 // Get the bitmap data in device-independent, 32-bit packed pixel format 288 ::GetDIBits(hdcMem, hbitmap, 0, height, pixelData, pinfo, DIB_RGB_COLORS); 289 290 // convert Win32 pixel format (BGRX) to Java format (ARGB) 291 DASSERT(sizeof(jint) == sizeof(RGBQUAD)); 292 for(int nPixel = 0; nPixel < numPixels; nPixel++) { 293 RGBQUAD * prgbq = &pixelData[nPixel]; 294 jint jpixel = WinToJavaPixel(prgbq->rgbRed, prgbq->rgbGreen, prgbq->rgbBlue); 295 // stuff the 32-bit pixel back into the 32-bit RGBQUAD 296 *prgbq = *( (RGBQUAD *)(&jpixel) ); 297 } 298 299 // copy pixels into Java array 300 env->SetIntArrayRegion(pixelArray, 0, numPixels, (jint *)pixelData); 301 delete pinfo; 302 303 // free all the GDI objects we made 304 ::SelectObject(hdcMem, hOldBitmap); 305 if (hOldPalette != NULL) { 306 ::SelectPalette(hdcMem, hOldPalette, FALSE); 307 } 308 ::DeleteObject(hbitmap); 309 ::DeleteDC(hdcMem); 310 ::DeleteDC(hdcScreen); 311 } 312 313 void AwtRobot::KeyPress( jint jkey ) 314 { 315 DoKeyEvent(jkey, 0); // no flags means key down 316 } 317 318 void AwtRobot::KeyRelease( jint jkey ) 319 { 320 DoKeyEvent(jkey, KEYEVENTF_KEYUP); 321 } 322 323 void AwtRobot::DoKeyEvent( jint jkey, DWORD dwFlags ) 324 { 325 UINT vkey; 326 UINT modifiers; 327 UINT scancode; 328 JNIEnv * env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2); 329 330 // convert Java key into Windows key (and modifiers too) 331 AwtComponent::JavaKeyToWindowsKey(jkey, &vkey, &modifiers); 332 if (vkey == 0) { 333 // no equivalent Windows key found for given Java keycode 334 JNU_ThrowIllegalArgumentException(env, "Invalid key code"); 335 } else { 336 // get the scancode from the virtual key 337 scancode = ::MapVirtualKey(vkey, 0); 338 if (vkey == VK_RMENU || 339 vkey == VK_DELETE || 340 vkey == VK_INSERT || 341 vkey == VK_NEXT || 342 vkey == VK_PRIOR || 343 vkey == VK_HOME || 344 vkey == VK_END || 345 vkey == VK_LEFT || 346 vkey == VK_RIGHT || 347 vkey == VK_UP || 348 vkey == VK_DOWN) { 349 dwFlags |= KEYEVENTF_EXTENDEDKEY; 350 } 351 keybd_event(vkey, scancode, dwFlags, 0); 352 } 353 } 354 355 // 356 // utility function to get the C++ object from the Java one 357 // 358 // (static) 359 AwtRobot * AwtRobot::GetRobot( jobject self ) 360 { 361 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2); 362 AwtRobot * robot = (AwtRobot *)JNI_GET_PDATA(self); 363 DASSERT( !::IsBadWritePtr( robot, sizeof(AwtRobot))); 364 return robot; 365 } 366 367 ////////////////////////////////////////////////////////////////////////////////////////////// 368 // Native method declarations 369 // 370 371 JNIEXPORT void JNICALL Java_sun_awt_windows_WRobotPeer_create( 372 JNIEnv * env, jobject self) 373 { 374 TRY; 375 376 new AwtRobot(self); 377 378 CATCH_BAD_ALLOC; 379 } 380 381 JNIEXPORT void JNICALL Java_sun_awt_windows_WRobotPeer__1dispose( 382 JNIEnv *env, jobject self) 383 { 384 TRY_NO_VERIFY; 385 386 AwtObject::_Dispose(self); 387 388 CATCH_BAD_ALLOC; 389 } 390 391 JNIEXPORT void JNICALL Java_sun_awt_windows_WRobotPeer_mouseMoveImpl( 392 JNIEnv * env, jobject self, jint x, jint y) 393 { 394 TRY; 395 396 AwtRobot::GetRobot(self)->MouseMove(x, y); 397 398 CATCH_BAD_ALLOC; 399 } 400 401 JNIEXPORT void JNICALL Java_sun_awt_windows_WRobotPeer_mousePress( 402 JNIEnv * env, jobject self, jint buttons) 403 { 404 TRY; 405 406 AwtRobot::GetRobot(self)->MousePress(buttons); 407 408 CATCH_BAD_ALLOC; 409 } 410 411 JNIEXPORT void JNICALL Java_sun_awt_windows_WRobotPeer_mouseRelease( 412 JNIEnv * env, jobject self, jint buttons) 413 { 414 TRY; 415 416 AwtRobot::GetRobot(self)->MouseRelease(buttons); 417 418 CATCH_BAD_ALLOC; 419 } 420 421 JNIEXPORT void JNICALL Java_sun_awt_windows_WRobotPeer_mouseWheel( 422 JNIEnv * env, jobject self, jint wheelAmt) 423 { 424 TRY; 425 426 AwtRobot::GetRobot(self)->MouseWheel(wheelAmt); 427 428 CATCH_BAD_ALLOC; 429 } 430 431 JNIEXPORT void JNICALL Java_sun_awt_windows_WRobotPeer_getRGBPixels( 432 JNIEnv *env, jobject self, jint x, jint y, jint width, jint height, jintArray pixelArray) 433 { 434 TRY; 435 436 AwtRobot::GetRobot(self)->GetRGBPixels(x, y, width, height, pixelArray); 437 438 CATCH_BAD_ALLOC; 439 } 440 441 JNIEXPORT void JNICALL Java_sun_awt_windows_WRobotPeer_keyPress( 442 JNIEnv *, jobject self, jint javakey ) 443 { 444 TRY; 445 446 AwtRobot::GetRobot(self)->KeyPress(javakey); 447 448 CATCH_BAD_ALLOC; 449 } 450 451 JNIEXPORT void JNICALL Java_sun_awt_windows_WRobotPeer_keyRelease( 452 JNIEnv *, jobject self, jint javakey ) 453 { 454 TRY; 455 456 AwtRobot::GetRobot(self)->KeyRelease(javakey); 457 458 CATCH_BAD_ALLOC; 459 }