1 /* 2 * Copyright (c) 1996, 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 #ifndef AWT_COMPONENT_H 27 #define AWT_COMPONENT_H 28 29 #include "awtmsg.h" 30 #include "awt_Object.h" 31 #include "awt_Font.h" 32 #include "awt_Brush.h" 33 #include "awt_Pen.h" 34 #include "awt_Win32GraphicsDevice.h" 35 #include "GDIWindowSurfaceData.h" 36 37 #include "java_awt_Component.h" 38 #include "sun_awt_windows_WComponentPeer.h" 39 #include "java_awt_event_KeyEvent.h" 40 #include "java_awt_event_MouseEvent.h" 41 #include "java_awt_event_WindowEvent.h" 42 #include "java_awt_Dimension.h" 43 44 extern LPCTSTR szAwtComponentClassName; 45 46 static LPCTSTR DrawingStateProp = TEXT("SunAwtDrawingStateProp"); 47 48 const UINT IGNORE_KEY = (UINT)-1; 49 const UINT MAX_ACP_STR_LEN = 7; // ANSI CP identifiers are no longer than this 50 51 #define LEFT_BUTTON 1 52 #define MIDDLE_BUTTON 2 53 #define RIGHT_BUTTON 4 54 #define DBL_CLICK 8 55 #define X1_BUTTON 16 56 #define X2_BUTTON 32 57 58 #ifndef MK_XBUTTON1 59 #define MK_XBUTTON1 0x0020 60 #endif 61 62 #ifndef MK_XBUTTON2 63 #define MK_XBUTTON2 0x0040 64 #endif 65 66 // combination of standard mouse button flags 67 const int ALL_MK_BUTTONS = MK_LBUTTON|MK_MBUTTON|MK_RBUTTON; 68 const int X_BUTTONS = MK_XBUTTON1|MK_XBUTTON2; 69 70 // The allowable difference between coordinates of the WM_TOUCH event and the 71 // corresponding WM_LBUTTONDOWN/WM_LBUTTONUP event letting to associate these 72 // events, when their coordinates are slightly different. 73 const int TOUCH_MOUSE_COORDS_DELTA = 10; 74 75 // Whether to check for embedded frame and adjust location 76 #define CHECK_EMBEDDED 0 77 #define DONT_CHECK_EMBEDDED 1 78 79 class AwtPopupMenu; 80 81 class AwtDropTarget; 82 83 /* 84 * Message routing codes 85 */ 86 enum MsgRouting { 87 mrPassAlong, /* pass along to next in chain */ 88 mrDoDefault, /* skip right to underlying default behavior */ 89 mrConsume, /* consume msg & terminate routing immediatly, 90 * don't pass anywhere 91 */ 92 }; 93 94 /************************************************************************ 95 * AwtComponent class 96 */ 97 98 class AwtComponent : public AwtObject { 99 public: 100 /* java.awt.Component fields and method IDs */ 101 static jfieldID peerID; 102 static jfieldID xID; 103 static jfieldID yID; 104 static jfieldID widthID; 105 static jfieldID heightID; 106 static jfieldID visibleID; 107 static jfieldID backgroundID; 108 static jfieldID foregroundID; 109 static jfieldID enabledID; 110 static jfieldID parentID; 111 static jfieldID cursorID; 112 static jfieldID graphicsConfigID; 113 static jfieldID peerGCID; 114 static jfieldID focusableID; 115 static jfieldID appContextID; 116 static jfieldID hwndID; 117 118 static jmethodID getFontMID; 119 static jmethodID getToolkitMID; 120 static jmethodID isEnabledMID; 121 static jmethodID getLocationOnScreenMID; 122 static jmethodID replaceSurfaceDataMID; 123 static jmethodID replaceSurfaceDataLaterMID; 124 static jmethodID disposeLaterMID; 125 126 static const UINT WmAwtIsComponent; 127 static jint * masks; //InputEvent mask array 128 AwtComponent(); 129 virtual ~AwtComponent(); 130 131 /* 132 * Dynamic class registration & creation 133 */ 134 virtual LPCTSTR GetClassName() = 0; 135 /* 136 * Fix for 4964237: Win XP: Changing theme changes java dialogs title icon 137 * WNDCLASS structure has been superseded by the WNDCLASSEX in Win32 138 */ 139 virtual void FillClassInfo(WNDCLASSEX *lpwc); 140 virtual void RegisterClass(); 141 virtual void UnregisterClass(); 142 143 virtual void CreateHWnd(JNIEnv *env, LPCWSTR title, 144 DWORD windowStyle, DWORD windowExStyle, 145 int x, int y, int w, int h, 146 HWND hWndParent, HMENU hMenu, 147 COLORREF colorForeground, COLORREF colorBackground, 148 jobject peer); 149 virtual void DestroyHWnd(); 150 void InitPeerGraphicsConfig(JNIEnv *env, jobject peer); 151 152 virtual void Dispose(); 153 154 void UpdateBackground(JNIEnv *env, jobject target); 155 156 virtual void SubclassHWND(); 157 virtual void UnsubclassHWND(); 158 159 static LRESULT CALLBACK WndProc(HWND hWnd, UINT message, 160 WPARAM wParam, LPARAM lParam); 161 162 /* 163 * Access to the various objects of this aggregate component 164 */ 165 INLINE HWND GetHWnd() { return m_hwnd; } 166 INLINE void SetHWnd(HWND hwnd) { m_hwnd = hwnd; } 167 168 static AwtComponent* GetComponent(HWND hWnd); 169 170 /* 171 * Access to the properties of the component 172 */ 173 INLINE COLORREF GetColor() { return m_colorForeground; } 174 virtual void SetColor(COLORREF c); 175 HPEN GetForegroundPen(); 176 177 COLORREF GetBackgroundColor(); 178 virtual void SetBackgroundColor(COLORREF c); 179 HBRUSH GetBackgroundBrush(); 180 INLINE BOOL IsBackgroundColorSet() { return m_backgroundColorSet; } 181 182 virtual void SetFont(AwtFont *pFont); 183 184 INLINE void SetText(LPCTSTR text) { ::SetWindowText(GetHWnd(), text); } 185 INLINE int GetText(LPTSTR buffer, int size) { 186 return ::GetWindowText(GetHWnd(), buffer, size); 187 } 188 INLINE int GetTextLength() { return ::GetWindowTextLength(GetHWnd()); } 189 190 virtual void GetInsets(RECT* rect) { 191 VERIFY(::SetRectEmpty(rect)); 192 } 193 194 BOOL IsVisible() { return m_visible;}; 195 196 HDC GetDCFromComponent(); 197 198 /* 199 * Enable/disable component 200 */ 201 virtual void Enable(BOOL bEnable); 202 203 /* 204 * Validate and call handleExpose on rects of UpdateRgn 205 */ 206 void PaintUpdateRgn(const RECT *insets); 207 208 static HWND GetTopLevelParentForWindow(HWND hwndDescendant); 209 210 static jobject FindHeavyweightUnderCursor(BOOL useCache); 211 212 /* 213 * Returns the parent component. If no parent window, or the 214 * parent window isn't an AwtComponent, returns NULL. 215 */ 216 AwtComponent* GetParent(); 217 218 /* Get the component's immediate container. Note: may return NULL while 219 the component is being reparented in full-screen mode by Direct3D */ 220 class AwtWindow* GetContainer(); 221 222 /* Is a component a container? Used by above method */ 223 virtual BOOL IsContainer() { return FALSE;} // Plain components can't 224 225 /** 226 * Returns TRUE if this message will trigger native focus change, FALSE otherwise. 227 */ 228 virtual BOOL IsFocusingKeyMessage(MSG *pMsg); 229 virtual BOOL IsFocusingMouseMessage(MSG *pMsg); 230 231 BOOL IsFocusable(); 232 233 /* 234 * Returns an increasing unsigned value used for child control IDs. 235 * There is no attempt to reclaim command ID's. 236 */ 237 INLINE UINT CreateControlID() { return m_nextControlID++; } 238 239 // returns the current keyboard layout 240 INLINE static HKL GetKeyboardLayout() { 241 return m_hkl; 242 } 243 244 // returns the current code page that should be used in 245 // all MultiByteToWideChar and WideCharToMultiByte calls. 246 // This code page should also be use in IsDBCSLeadByteEx. 247 INLINE static UINT GetCodePage() 248 { 249 return m_CodePage; 250 } 251 252 // Added by waleed for BIDI Support 253 // returns the right to left status 254 INLINE static BOOL GetRTLReadingOrder() { 255 return sm_rtlReadingOrder; 256 } 257 // returns the right to left status 258 INLINE static BOOL GetRTL() { 259 return sm_rtl; 260 } 261 // returns the current sub language 262 INLINE static LANGID GetSubLanguage() { 263 return SUBLANGID(m_idLang); 264 } 265 // end waleed 266 267 // returns the current input language 268 INLINE static LANGID GetInputLanguage() 269 { 270 return m_idLang; 271 } 272 // Convert Language ID to CodePage 273 static UINT LangToCodePage(LANGID idLang); 274 275 /* 276 * methods on this component 277 */ 278 virtual void Show(); 279 virtual void Hide(); 280 virtual void Reshape(int x, int y, int w, int h); 281 282 /* 283 * Fix for 4046446. 284 * Component size/position helper, for the values above the short int limit. 285 */ 286 static BOOL SetWindowPos(HWND wnd, HWND after, 287 int x, int y, int w, int h, UINT flags); 288 289 /* 290 * Sets the scrollbar values. 'bar' can be either SB_VERT or 291 * SB_HORZ. 'min', 'value', and 'max' can have the value INT_MAX 292 * which means that the value should not be changed. 293 */ 294 void SetScrollValues(UINT bar, int min, int value, int max); 295 296 INLINE LRESULT SendMessage(UINT msg, WPARAM wParam=0, LPARAM lParam=0) { 297 DASSERT(GetHWnd()); 298 return ::SendMessage(GetHWnd(), msg, wParam, lParam); 299 } 300 301 void PostUngrabEvent(); 302 303 INLINE virtual LONG GetStyle() { 304 DASSERT(GetHWnd()); 305 return ::GetWindowLong(GetHWnd(), GWL_STYLE); 306 } 307 INLINE virtual void SetStyle(LONG style) { 308 DASSERT(GetHWnd()); 309 // SetWindowLong() error handling as recommended by Win32 API doc. 310 ::SetLastError(0); 311 DWORD ret = ::SetWindowLong(GetHWnd(), GWL_STYLE, style); 312 DASSERT(ret != 0 || ::GetLastError() == 0); 313 } 314 INLINE virtual LONG GetStyleEx() { 315 DASSERT(GetHWnd()); 316 return ::GetWindowLong(GetHWnd(), GWL_EXSTYLE); 317 } 318 INLINE virtual void SetStyleEx(LONG style) { 319 DASSERT(GetHWnd()); 320 // SetWindowLong() error handling as recommended by Win32 API doc. 321 ::SetLastError(0); 322 DWORD ret = ::SetWindowLong(GetHWnd(), GWL_EXSTYLE, style); 323 DASSERT(ret != 0 || ::GetLastError() == 0); 324 } 325 326 virtual BOOL NeedDblClick() { return FALSE; } 327 328 /* for multifont component */ 329 static void DrawWindowText(HDC hDC, jobject font, jstring text, 330 int x, int y); 331 static void DrawGrayText(HDC hDC, jobject font, jstring text, 332 int x, int y); 333 334 void DrawListItem(JNIEnv *env, DRAWITEMSTRUCT &drawInfo); 335 336 void MeasureListItem(JNIEnv *env, MEASUREITEMSTRUCT &measureInfo); 337 338 jstring GetItemString(JNIEnv *env, jobject target, jint index); 339 340 jint GetFontHeight(JNIEnv *env); 341 342 virtual jobject PreferredItemSize(JNIEnv *env) {DASSERT(FALSE); return NULL; } 343 344 INLINE BOOL isEnabled() { 345 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2); 346 if (env->EnsureLocalCapacity(2) < 0) { 347 return NULL; 348 } 349 jobject self = GetPeer(env); 350 jobject target = env->GetObjectField(self, AwtObject::targetID); 351 BOOL e = env->CallBooleanMethod(target, AwtComponent::isEnabledMID); 352 DASSERT(!safe_ExceptionOccurred(env)); 353 354 env->DeleteLocalRef(target); 355 356 return e; 357 } 358 359 INLINE BOOL isRecursivelyEnabled() { 360 AwtComponent* p = this; 361 do { 362 if (!p->isEnabled()) { 363 return FALSE; 364 } 365 } while (!p->IsTopLevel() && 366 (p = p->GetParent()) != NULL); 367 return TRUE; 368 } 369 370 void SendKeyEventToFocusOwner(jint id, jlong when, jint raw, jint cooked, 371 jint modifiers, jint keyLocation, jlong nativeCode, 372 MSG *msg = NULL); 373 /* 374 * Allocate and initialize a new java.awt.event.KeyEvent, and 375 * post it to the peer's target object. No response is expected 376 * from the target. 377 */ 378 void SendKeyEvent(jint id, jlong when, jint raw, jint cooked, 379 jint modifiers, jint keyLocation, jlong nativeCode, 380 MSG *msg = NULL); 381 382 /* 383 * Allocate and initialize a new java.awt.event.MouseEvent, and 384 * post it to the peer's target object. No response is expected 385 * from the target. 386 */ 387 void SendMouseEvent(jint id, jlong when, jint x, jint y, 388 jint modifiers, jint clickCount, 389 jboolean popupTrigger, jint button = 0, 390 MSG *msg = NULL, BOOL causedByTouchEvent = FALSE); 391 392 /* 393 * Allocate and initialize a new java.awt.event.MouseWheelEvent, and 394 * post it to the peer's target object. No response is expected 395 * from the target. 396 */ 397 void SendMouseWheelEvent(jint id, jlong when, jint x, jint y, 398 jint modifiers, jint clickCount, 399 jboolean popupTrigger, jint scrollType, 400 jint scrollAmount, jint wheelRotation, 401 jdouble preciseWheelRotation, MSG *msg = NULL); 402 403 /* 404 * Allocate and initialize a new java.awt.event.FocusEvent, and 405 * post it to the peer's target object. No response is expected 406 * from the target. 407 */ 408 void SendFocusEvent(jint id, HWND opposite); 409 410 /* Forward a filtered event directly to the subclassed window. 411 synthetic should be TRUE iff the message was generated because 412 of a synthetic Java event, rather than a native event. */ 413 virtual MsgRouting HandleEvent(MSG *msg, BOOL synthetic); 414 415 /* Post a WM_AWT_HANDLE_EVENT message which invokes HandleEvent 416 on the toolkit thread. This method may pre-filter the messages. */ 417 virtual BOOL PostHandleEventMessage(MSG *msg, BOOL synthetic); 418 419 /* Event->message synthesizer methods. */ 420 void SynthesizeKeyMessage(JNIEnv *env, jobject keyEvent); 421 void SynthesizeMouseMessage(JNIEnv *env, jobject mouseEvent); 422 423 /* Components which inherit native mouse wheel behavior will 424 * return TRUE. These are TextArea, Choice, FileDialog, and 425 * List. All other Components return FALSE. 426 */ 427 virtual BOOL InheritsNativeMouseWheelBehavior(); 428 429 /* Determines whether the component is obscured by another window */ 430 // Called on Toolkit thread 431 static jboolean _IsObscured(void *param); 432 433 /* Invalidate the specified rectangle. */ 434 virtual void Invalidate(RECT* r); 435 436 /* Begin and end deferred window positioning. */ 437 virtual void BeginValidate(); 438 virtual void EndValidate(); 439 440 /* Keyboard conversion routines. */ 441 static void InitDynamicKeyMapTable(); 442 static void BuildDynamicKeyMapTable(); 443 static jint GetJavaModifiers(); 444 static jint GetButton(int mouseButton); 445 static UINT GetButtonMK(int mouseButton); 446 static UINT WindowsKeyToJavaKey(UINT windowsKey, UINT modifiers, UINT character, BOOL isDeadKey); 447 static void JavaKeyToWindowsKey(UINT javaKey, UINT *windowsKey, UINT *modifiers, UINT originalWindowsKey); 448 static void UpdateDynPrimaryKeymap(UINT wkey, UINT jkeyLegacy, jint keyLocation, UINT modifiers); 449 450 INLINE static void AwtComponent::JavaKeyToWindowsKey(UINT javaKey, 451 UINT *windowsKey, UINT *modifiers) 452 { 453 JavaKeyToWindowsKey(javaKey, windowsKey, modifiers, IGNORE_KEY); 454 } 455 456 enum TransOps {NONE, LOAD, SAVE}; 457 458 UINT WindowsKeyToJavaChar(UINT wkey, UINT modifiers, TransOps ops, BOOL &isDeadKey); 459 460 /* routines used for input method support */ 461 void SetInputMethod(jobject im, BOOL useNativeCompWindow); 462 void SendInputMethodEvent(jint id, jstring text, int cClause, 463 int *rgClauseBoundary, jstring *rgClauseReading, 464 int cAttrBlock, int *rgAttrBoundary, 465 BYTE *rgAttrValue, int commitedTextLength, 466 int caretPos, int visiblePos); 467 void InquireCandidatePosition(); 468 INLINE LPARAM GetCandidateType() { return m_bitsCandType; } 469 HWND ImmGetHWnd(); 470 HIMC ImmAssociateContext(HIMC himc); 471 HWND GetProxyFocusOwner(); 472 473 INLINE HWND GetProxyToplevelContainer() { 474 HWND proxyHWnd = GetProxyFocusOwner(); 475 return ::GetAncestor(proxyHWnd, GA_ROOT); // a browser in case of EmbeddedFrame 476 } 477 478 void CallProxyDefWindowProc(UINT message, 479 WPARAM wParam, 480 LPARAM lParam, 481 LRESULT &retVal, 482 MsgRouting &mr); 483 484 /* 485 * Windows message handler functions 486 */ 487 virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam); 488 virtual LRESULT DefWindowProc(UINT msg, WPARAM wParam, LPARAM lParam); 489 490 /* return true if msg is processed */ 491 virtual MsgRouting PreProcessMsg(MSG& msg); 492 493 virtual MsgRouting WmCreate() {return mrDoDefault;} 494 virtual MsgRouting WmClose() {return mrDoDefault;} 495 virtual MsgRouting WmDestroy(); 496 virtual MsgRouting WmNcDestroy(); 497 498 virtual MsgRouting WmActivate(UINT nState, BOOL fMinimized, HWND opposite) 499 { 500 return mrDoDefault; 501 } 502 503 virtual MsgRouting WmEraseBkgnd(HDC hDC, BOOL& didErase) 504 { 505 return mrDoDefault; 506 } 507 508 virtual MsgRouting WmPaint(HDC hDC); 509 virtual MsgRouting WmGetMinMaxInfo(LPMINMAXINFO lpmmi); 510 virtual MsgRouting WmMove(int x, int y); 511 virtual MsgRouting WmSize(UINT type, int w, int h); 512 virtual MsgRouting WmSizing(); 513 virtual MsgRouting WmShowWindow(BOOL show, UINT status); 514 virtual MsgRouting WmSetFocus(HWND hWndLost); 515 virtual MsgRouting WmKillFocus(HWND hWndGot); 516 virtual MsgRouting WmCtlColor(HDC hDC, HWND hCtrl, 517 UINT ctlColor, HBRUSH& retBrush); 518 virtual MsgRouting WmHScroll(UINT scrollCode, UINT pos, HWND hScrollBar); 519 virtual MsgRouting WmVScroll(UINT scrollCode, UINT pos, HWND hScrollBar); 520 521 virtual MsgRouting WmMouseEnter(UINT flags, int x, int y); 522 virtual MsgRouting WmMouseDown(UINT flags, int x, int y, int button); 523 virtual MsgRouting WmMouseUp(UINT flags, int x, int y, int button); 524 virtual MsgRouting WmMouseMove(UINT flags, int x, int y); 525 virtual MsgRouting WmMouseExit(UINT flags, int x, int y); 526 virtual MsgRouting WmMouseWheel(UINT flags, int x, int y, 527 int wheelRotation); 528 virtual MsgRouting WmNcMouseDown(WPARAM hitTest, int x, int y, int button); 529 virtual MsgRouting WmNcMouseUp(WPARAM hitTest, int x, int y, int button); 530 virtual MsgRouting WmWindowPosChanging(LPARAM windowPos); 531 virtual MsgRouting WmWindowPosChanged(LPARAM windowPos); 532 virtual void WmTouch(WPARAM wParam, LPARAM lParam); 533 534 // NB: 64-bit: vkey is wParam of the message, but other API's take 535 // vkey parameters of type UINT, so we do the cast before dispatching. 536 virtual MsgRouting WmKeyDown(UINT vkey, UINT repCnt, UINT flags, BOOL system); 537 virtual MsgRouting WmKeyUp(UINT vkey, UINT repCnt, UINT flags, BOOL system); 538 539 virtual MsgRouting WmChar(UINT character, UINT repCnt, UINT flags, BOOL system); 540 virtual MsgRouting WmIMEChar(UINT character, UINT repCnt, UINT flags, BOOL system); 541 virtual MsgRouting WmInputLangChange(UINT charset, HKL hKeyBoardLayout); 542 virtual MsgRouting WmForwardChar(WCHAR character, LPARAM lParam, 543 BOOL synthethic); 544 virtual MsgRouting WmPaste(); 545 546 virtual void SetCompositionWindow(RECT &r); 547 virtual void OpenCandidateWindow(int x, int y); 548 virtual void SetCandidateWindow(int iCandType, int x, int y); 549 virtual MsgRouting WmImeSetContext(BOOL fSet, LPARAM *lplParam); 550 virtual MsgRouting WmImeNotify(WPARAM subMsg, LPARAM bitsCandType); 551 virtual MsgRouting WmImeStartComposition(); 552 virtual MsgRouting WmImeEndComposition(); 553 virtual MsgRouting WmImeComposition(WORD wChar, LPARAM flags); 554 555 virtual MsgRouting WmTimer(UINT_PTR timerID) {return mrDoDefault;} 556 557 virtual MsgRouting WmCommand(UINT id, HWND hWndCtrl, UINT notifyCode); 558 559 /* reflected WmCommand from parent */ 560 virtual MsgRouting WmNotify(UINT notifyCode); 561 562 virtual MsgRouting WmCompareItem(UINT /*ctrlId*/, 563 COMPAREITEMSTRUCT &compareInfo, 564 LRESULT &result); 565 virtual MsgRouting WmDeleteItem(UINT /*ctrlId*/, 566 DELETEITEMSTRUCT &deleteInfo); 567 virtual MsgRouting WmDrawItem(UINT ctrlId, 568 DRAWITEMSTRUCT &drawInfo); 569 virtual MsgRouting WmMeasureItem(UINT ctrlId, 570 MEASUREITEMSTRUCT &measureInfo); 571 /* Fix 4181790 & 4223341 : These functions get overridden in owner-drawn 572 * components instead of the Wm... versions. 573 */ 574 virtual MsgRouting OwnerDrawItem(UINT ctrlId, 575 DRAWITEMSTRUCT &drawInfo); 576 virtual MsgRouting OwnerMeasureItem(UINT ctrlId, 577 MEASUREITEMSTRUCT &measureInfo); 578 579 virtual MsgRouting WmPrint(HDC hDC, LPARAM flags); 580 virtual MsgRouting WmPrintClient(HDC hDC, LPARAM flags); 581 582 virtual MsgRouting WmNcCalcSize(BOOL fCalcValidRects, 583 LPNCCALCSIZE_PARAMS lpncsp, 584 LRESULT &retVal); 585 virtual MsgRouting WmNcPaint(HRGN hrgn); 586 virtual MsgRouting WmNcHitTest(UINT x, UINT y, LRESULT &retVal); 587 virtual MsgRouting WmSysCommand(UINT uCmdType, int xPos, int yPos); 588 virtual MsgRouting WmExitSizeMove(); 589 virtual MsgRouting WmEnterMenuLoop(BOOL isTrackPopupMenu); 590 virtual MsgRouting WmExitMenuLoop(BOOL isTrackPopupMenu); 591 592 virtual MsgRouting WmQueryNewPalette(LRESULT &retVal); 593 virtual MsgRouting WmPaletteChanged(HWND hwndPalChg); 594 virtual MsgRouting WmPaletteIsChanging(HWND hwndPalChg); 595 virtual MsgRouting WmStyleChanged(int wStyleType, LPSTYLESTRUCT lpss); 596 virtual MsgRouting WmSettingChange(UINT wFlag, LPCTSTR pszSection); 597 598 virtual MsgRouting WmContextMenu(HWND hCtrl, UINT xPos, UINT yPos) { 599 return mrDoDefault; 600 } 601 602 void UpdateColorModel(); 603 604 jintArray CreatePrintedPixels(SIZE &loc, SIZE &size, int alpha); 605 606 /* 607 * HWND, AwtComponent and Java Peer interaction 608 * 609 * Link the C++, Java peer, and HWNDs together. 610 */ 611 void LinkObjects(JNIEnv *env, jobject peer); 612 613 void UnlinkObjects(); 614 615 static BOOL QueryNewPaletteCalled() { return m_QueryNewPaletteCalled; } 616 617 #ifdef DEBUG 618 virtual void VerifyState(); /* verify component and peer are in sync. */ 619 #else 620 void VerifyState() {} /* no-op */ 621 #endif 622 623 virtual AwtDropTarget* CreateDropTarget(JNIEnv* env); 624 virtual void DestroyDropTarget(); 625 626 INLINE virtual HWND GetDBCSEditHandle() { return NULL; } 627 // State for native drawing API 628 INLINE jint GetDrawState() { return GetDrawState(m_hwnd); } 629 INLINE void SetDrawState(jint state) { SetDrawState(m_hwnd, state); } // State for native drawing API 630 631 INLINE virtual BOOL IsTopLevel() { return FALSE; } 632 INLINE virtual BOOL IsEmbeddedFrame() { return FALSE; } 633 INLINE virtual BOOL IsScrollbar() { return FALSE; } 634 635 static INLINE BOOL IsTopLevelHWnd(HWND hwnd) { 636 AwtComponent *comp = AwtComponent::GetComponent(hwnd); 637 return (comp != NULL && comp->IsTopLevel()); 638 } 639 static INLINE BOOL IsEmbeddedFrameHWnd(HWND hwnd) { 640 AwtComponent *comp = AwtComponent::GetComponent(hwnd); 641 return (comp != NULL && comp->IsEmbeddedFrame()); 642 } 643 644 static jint GetDrawState(HWND hwnd); 645 static void SetDrawState(HWND hwnd, jint state); 646 647 static HWND GetHWnd(JNIEnv* env, jobject target); 648 649 static MSG* CreateMessage(UINT message, WPARAM wParam, LPARAM lParam, int x, int y); 650 static void InitMessage(MSG* msg, UINT message, WPARAM wParam, LPARAM lParam, int x, int y); 651 652 // Some methods to be called on Toolkit thread via Toolkit.InvokeFunction() 653 static void _Show(void *param); 654 static void _Hide(void *param); 655 static void _Enable(void *param); 656 static void _Disable(void *param); 657 static jobject _GetLocationOnScreen(void *param); 658 static void _Reshape(void *param); 659 static void _ReshapeNoCheck(void *param); 660 static void _NativeHandleEvent(void *param); 661 static void _SetForeground(void *param); 662 static void _SetBackground(void *param); 663 static void _SetFont(void *param); 664 static void _Start(void *param); 665 static void _BeginValidate(void *param); 666 static void _EndValidate(void *param); 667 static void _UpdateWindow(void *param); 668 static jlong _AddNativeDropTarget(void *param); 669 static void _RemoveNativeDropTarget(void *param); 670 static jintArray _CreatePrintedPixels(void *param); 671 static jboolean _NativeHandlesWheelScrolling(void *param); 672 static void _SetRectangularShape(void *param); 673 static void _SetZOrder(void *param); 674 675 static HWND sm_focusOwner; 676 677 private: 678 static HWND sm_focusedWindow; 679 680 public: 681 static inline HWND GetFocusedWindow() { return sm_focusedWindow; } 682 static void SetFocusedWindow(HWND window); 683 684 static void _SetFocus(void *param); 685 686 static void *SetNativeFocusOwner(void *self); 687 static void *GetNativeFocusedWindow(); 688 static void *GetNativeFocusOwner(); 689 690 static BOOL sm_inSynthesizeFocus; 691 692 // Execute on Toolkit only. 693 INLINE static LRESULT SynthesizeWmSetFocus(HWND targetHWnd, HWND oppositeHWnd) { 694 sm_inSynthesizeFocus = TRUE; 695 LRESULT res = ::SendMessage(targetHWnd, WM_SETFOCUS, (WPARAM)oppositeHWnd, 0); 696 sm_inSynthesizeFocus = FALSE; 697 return res; 698 } 699 // Execute on Toolkit only. 700 INLINE static LRESULT SynthesizeWmKillFocus(HWND targetHWnd, HWND oppositeHWnd) { 701 sm_inSynthesizeFocus = TRUE; 702 LRESULT res = ::SendMessage(targetHWnd, WM_KILLFOCUS, (WPARAM)oppositeHWnd, 0); 703 sm_inSynthesizeFocus = FALSE; 704 return res; 705 } 706 707 static BOOL sm_bMenuLoop; 708 static INLINE BOOL isMenuLoopActive() { 709 return sm_bMenuLoop; 710 } 711 712 // when this component is being destroyed, this method is called 713 // to find out if there are any messages being processed, and if 714 // there are some then disposal of this component is postponed 715 virtual BOOL CanBeDeleted() { 716 return m_MessagesProcessing == 0; 717 } 718 719 BOOL IsDestroyPaused() const { 720 return m_bPauseDestroy; 721 } 722 723 protected: 724 static AwtComponent* GetComponentImpl(HWND hWnd); 725 726 static int GetClickCount(); 727 728 HWND m_hwnd; 729 UINT m_myControlID; /* its own ID from the view point of parent */ 730 BOOL m_backgroundColorSet; 731 BOOL m_visible; /* copy of Component.visible */ 732 733 static BOOL sm_suppressFocusAndActivation; 734 static BOOL sm_restoreFocusAndActivation; 735 736 /* 737 * The function sets the focus-restore flag ON/OFF. 738 * When the flag is ON, focus is restored immidiately after the proxy loses it. 739 * All focus messages are suppressed. It's also assumed that sm_focusedWindow and 740 * sm_focusOwner don't change after the flag is set ON and before it's set OFF. 741 */ 742 static INLINE void SetRestoreFocus(BOOL doSet) { 743 sm_suppressFocusAndActivation = doSet; 744 sm_restoreFocusAndActivation = doSet; 745 } 746 747 virtual void SetDragCapture(UINT flags); 748 virtual void ReleaseDragCapture(UINT flags); 749 750 virtual void FillBackground(HDC hMemoryDC, SIZE &size); 751 virtual void FillAlpha(void *bitmapBits, SIZE &size, BYTE alpha); 752 753 private: 754 /* A bitmask keeps the button's numbers as MK_LBUTTON, MK_MBUTTON, MK_RBUTTON 755 * which are allowed to 756 * generate the CLICK event after the RELEASE has happened. 757 * There are conditions that must be true for that sending CLICK event: 758 * 1) button was initially PRESSED 759 * 2) no movement or drag has happened until RELEASE 760 */ 761 UINT m_mouseButtonClickAllowed; 762 763 BOOL m_touchDownOccurred; 764 BOOL m_touchUpOccurred; 765 POINT m_touchDownPoint; 766 POINT m_touchUpPoint; 767 768 BOOL m_bSubclassed; 769 BOOL m_bPauseDestroy; 770 771 COLORREF m_colorForeground; 772 COLORREF m_colorBackground; 773 774 AwtPen* m_penForeground; 775 AwtBrush* m_brushBackground; 776 777 WNDPROC m_DefWindowProc; 778 // counter for messages being processed by this component 779 UINT m_MessagesProcessing; 780 781 // provides a unique ID for child controls 782 UINT m_nextControlID; 783 784 // DeferWindowPos handle for batched-up window positioning 785 HDWP m_hdwp; 786 // Counter to handle nested calls to Begin/EndValidate 787 UINT m_validationNestCount; 788 789 AwtDropTarget* m_dropTarget; // associated DropTarget object 790 791 // When we process WM_INPUTLANGCHANGE we remember the keyboard 792 // layout handle and associated input language and codepage. 793 // We also invalidate VK translation table for VK_OEM_* codes 794 static HKL m_hkl; 795 static UINT m_CodePage; 796 static LANGID m_idLang; 797 798 static BOOL sm_rtl; 799 static BOOL sm_rtlReadingOrder; 800 801 static BOOL sm_PrimaryDynamicTableBuilt; 802 803 jobject m_InputMethod; 804 BOOL m_useNativeCompWindow; 805 LPARAM m_bitsCandType; 806 UINT m_PendingLeadByte; 807 808 void SetComponentInHWND(); 809 810 // Determines whether a given virtual key is on the numpad 811 static BOOL IsNumPadKey(UINT vkey, BOOL extended); 812 813 // Determines the keyLocation of a given key 814 static jint GetKeyLocation(UINT wkey, UINT flags); 815 static jint GetShiftKeyLocation(UINT wkey, UINT flags); 816 817 // Cache for FindComponent 818 static HWND sm_cursorOn; 819 820 static BOOL m_QueryNewPaletteCalled; 821 822 static AwtComponent* sm_getComponentCache; // a cache for the GetComponent(..) method. 823 824 int windowMoveLockPosX; 825 int windowMoveLockPosY; 826 int windowMoveLockPosCX; 827 int windowMoveLockPosCY; 828 829 // 6524352: support finer-resolution 830 int m_wheelRotationAmount; 831 832 BOOL deadKeyActive; 833 834 /* 835 * The association list of children's IDs and corresponding components. 836 * Some components like Choice or List are required their sizes while 837 * the creations of themselfs are in progress. 838 */ 839 class ChildListItem { 840 public: 841 ChildListItem(UINT id, AwtComponent* component) { 842 m_ID = id; 843 m_Component = component; 844 m_next = NULL; 845 } 846 ~ChildListItem() { 847 if (m_next != NULL) 848 delete m_next; 849 } 850 851 UINT m_ID; 852 AwtComponent* m_Component; 853 ChildListItem* m_next; 854 }; 855 856 public: 857 INLINE void PushChild(UINT id, AwtComponent* component) { 858 ChildListItem* child = new ChildListItem(id, component); 859 child->m_next = m_childList; 860 m_childList = child; 861 } 862 863 static void SetParent(void * param); 864 private: 865 AwtComponent* SearchChild(UINT id); 866 void RemoveChild(UINT id) ; 867 static BOOL IsNavigationKey(UINT wkey); 868 static void BuildPrimaryDynamicTable(); 869 870 ChildListItem* m_childList; 871 872 HCURSOR m_hCursorCache; // the latest cursor which has been active within the heavyweight component 873 public: 874 inline void setCursorCache(HCURSOR hCursor) { 875 m_hCursorCache = hCursor; 876 } 877 inline HCURSOR getCursorCache() { 878 return m_hCursorCache; 879 } 880 }; 881 882 class CounterHelper { 883 private: 884 UINT *m_counter; 885 public: 886 explicit CounterHelper(UINT *counter) { 887 m_counter = counter; 888 (*m_counter)++; 889 } 890 ~CounterHelper() { 891 (*m_counter)--; 892 m_counter = NULL; 893 } 894 }; 895 896 // DC management objects; these classes are used to track the list of 897 // DC's associated with a given Component. Then DC's can be released 898 // appropriately on demand or on window destruction to avoid resource 899 // leakage. 900 class DCItem { 901 public: 902 HDC hDC; 903 HWND hWnd; 904 DCItem *next; 905 }; 906 class DCList { 907 DCItem *head; 908 CriticalSection listLock; 909 public: 910 DCList() { head = NULL; } 911 912 void AddDC(HDC hDC, HWND hWnd); 913 void AddDCItem(DCItem *newItem); 914 DCItem *RemoveDC(HDC hDC, HWND hWnd); 915 DCItem *RemoveAllDCs(HWND hWnd); 916 void RealizePalettes(int screen); 917 }; 918 919 void ReleaseDCList(HWND hwnd, DCList &list); 920 void MoveDCToPassiveList(HDC hDC, HWND hWnd); 921 922 namespace TimeHelper{ 923 jlong getMessageTimeUTC(); 924 jlong windowsToUTC(DWORD event_offset); 925 } 926 927 #include "ObjectList.h" 928 929 #endif /* AWT_COMPONENT_H */