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134 * WNDCLASS structure has been superseded by the WNDCLASSEX in Win32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