1 /*
2 * Copyright (c) 1996, 2014, 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 "jni_util.h"
27 #include "awt_Toolkit.h"
28 #include "awt_Dialog.h"
29 #include "awt_Window.h"
30
31 #include <windowsx.h>
32
33 #include "java_awt_Dialog.h"
34
35 /* IMPORTANT! Read the README.JNI file for notes on JNI converted AWT code.
36 */
37
38 /************************************************************************/
39 // Struct for _SetIMMOption() method
40 struct SetIMMOptionStruct {
41 jobject dialog;
42 jstring option;
43 };
44 /************************************************************************
45 * AwtDialog fields
46 */
47
48 jfieldID AwtDialog::titleID;
49 jfieldID AwtDialog::undecoratedID;
50
51 #if defined(DEBUG)
52 // counts how many nested modal dialogs are open, a sanity
53 // check to ensure the somewhat complicated disable/enable
54 // code is working properly
55 int AwtModalityNestCounter = 0;
56 #endif
57
58 HHOOK AWTModalHook;
59 HHOOK AWTMouseHook;
60
61 int VisibleModalDialogsCount = 0;
62
63 /************************************************************************
64 * AwtDialog class methods
65 */
66
67 AwtDialog::AwtDialog() {
68 m_modalWnd = NULL;
69 }
70
71 AwtDialog::~AwtDialog()
72 {
73 }
74
75 void AwtDialog::Dispose()
76 {
77 if (m_modalWnd != NULL) {
78 WmEndModal();
79 }
80 AwtFrame::Dispose();
81 }
82
83 LPCTSTR AwtDialog::GetClassName() {
84 return AWT_DIALOG_WINDOW_CLASS_NAME;
85 }
86
87 void AwtDialog::FillClassInfo(WNDCLASSEX *lpwc)
88 {
89 AwtWindow::FillClassInfo(lpwc);
90 //Fixed 6280303: REGRESSION: Java cup icon appears in title bar of dialogs
91 // Dialog inherits icon from its owner dinamically
92 lpwc->hIcon = NULL;
93 lpwc->hIconSm = NULL;
94 }
95
96 /*
97 * Create a new AwtDialog object and window.
98 */
99 AwtDialog* AwtDialog::Create(jobject peer, jobject parent)
100 {
101 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
102
103 jobject target = NULL;
104 AwtDialog* dialog = NULL;
105
106 try {
107 if (env->EnsureLocalCapacity(2) < 0) {
108 return NULL;
109 }
110
111 PDATA pData;
112 AwtWindow* awtParent = NULL;
113 HWND hwndParent = NULL;
114 target = env->GetObjectField(peer, AwtObject::targetID);
115 JNI_CHECK_NULL_GOTO(target, "null target", done);
116
117 if (parent != NULL) {
118 JNI_CHECK_PEER_GOTO(parent, done);
119 awtParent = (AwtWindow *)(JNI_GET_PDATA(parent));
120 hwndParent = awtParent->GetHWnd();
121 } else {
122 // There is no way to prevent a parentless dialog from showing on
123 // the taskbar other than to specify an invisible parent and set
124 // WS_POPUP style for the dialog. Using toolkit window here. That
125 // will also excludes the dialog from appearing in window list while
126 // ALT+TAB'ing
127 // From the other point, it may be confusing when the dialog without
128 // an owner is missing on the toolbar. So, do not set any fake
129 // parent window here.
130 // hwndParent = AwtToolkit::GetInstance().GetHWnd();
131 }
132 dialog = new AwtDialog();
133
134 {
135 int colorId = COLOR_3DFACE;
136 DWORD style = WS_CAPTION | WS_SYSMENU | WS_CLIPCHILDREN;
137 if (hwndParent != NULL) {
138 style |= WS_POPUP;
139 }
140 style &= ~(WS_MINIMIZEBOX|WS_MAXIMIZEBOX);
141 DWORD exStyle = WS_EX_WINDOWEDGE | WS_EX_DLGMODALFRAME;
142
143 if (GetRTL()) {
144 exStyle |= WS_EX_RIGHT | WS_EX_LEFTSCROLLBAR;
145 if (GetRTLReadingOrder())
146 exStyle |= WS_EX_RTLREADING;
147 }
148
149
150 if (env->GetBooleanField(target, AwtDialog::undecoratedID) == JNI_TRUE) {
151 style = WS_POPUP | WS_CLIPCHILDREN;
152 exStyle = 0;
153 dialog->m_isUndecorated = TRUE;
154 }
155
156 jint x = env->GetIntField(target, AwtComponent::xID);
157 jint y = env->GetIntField(target, AwtComponent::yID);
158 jint width = env->GetIntField(target, AwtComponent::widthID);
159 jint height = env->GetIntField(target, AwtComponent::heightID);
160
161 dialog->CreateHWnd(env, L"",
162 style, exStyle,
163 x, y, width, height,
164 hwndParent,
165 NULL,
166 ::GetSysColor(COLOR_WINDOWTEXT),
167 ::GetSysColor(colorId),
168 peer);
169
170 dialog->RecalcNonClient();
171 dialog->UpdateSystemMenu();
172
173 /*
174 * Initialize icon as inherited from parent if it exists
175 */
176 if (parent != NULL) {
177 dialog->m_hIcon = awtParent->GetHIcon();
178 dialog->m_hIconSm = awtParent->GetHIconSm();
179 dialog->m_iconInherited = TRUE;
180 }
181 dialog->DoUpdateIcon();
182
183 }
184 } catch (...) {
185 env->DeleteLocalRef(target);
186 throw;
187 }
188
189 done:
190 env->DeleteLocalRef(target);
191
192 return dialog;
193 }
194
195 MsgRouting AwtDialog::WmNcMouseDown(WPARAM hitTest, int x, int y, int button) {
196 // By the request from Swing team, click on the Dialog's title should generate Ungrab
197 if (m_grabbedWindow != NULL/* && !m_grabbedWindow->IsOneOfOwnersOf(this)*/) {
198 m_grabbedWindow->Ungrab();
199 }
200
201 if (!IsFocusableWindow() && (button & LEFT_BUTTON)) {
202 // Dialog is non-maximizable
203 if ((button & DBL_CLICK) && hitTest == HTCAPTION) {
204 return mrConsume;
205 }
206 }
207 return AwtFrame::WmNcMouseDown(hitTest, x, y, button);
208 }
209
210 LRESULT CALLBACK AwtDialog::ModalFilterProc(int code,
211 WPARAM wParam, LPARAM lParam)
212 {
213 HWND hWnd = (HWND)wParam;
214 HWND blocker = AwtWindow::GetModalBlocker(hWnd);
215 if (::IsWindow(blocker) &&
216 ((code == HCBT_ACTIVATE) ||
217 (code == HCBT_SETFOCUS)))
218 {
219 // fix for 6270632: this window and all its blockers can be minimized by
220 // "show desktop" button, so we should restore them first
221 if (::IsIconic(hWnd)) {
222 ::ShowWindow(hWnd, SW_RESTORE);
223 }
224 PopupBlockers(blocker, TRUE, ::GetForegroundWindow(), FALSE);
225 // return 1 to prevent the system from allowing the operation
226 return 1;
227 }
228 return CallNextHookEx(0, code, wParam, lParam);
229 }
230
231 LRESULT CALLBACK AwtDialog::MouseHookProc(int nCode,
232 WPARAM wParam, LPARAM lParam)
233 {
234 if (nCode >= 0)
235 {
236 MOUSEHOOKSTRUCT *mhs = (MOUSEHOOKSTRUCT *)lParam;
237 HWND hWnd = mhs->hwnd;
238 if ((wParam == WM_LBUTTONDOWN) ||
239 (wParam == WM_MBUTTONDOWN) ||
240 (wParam == WM_RBUTTONDOWN) ||
241 (wParam == WM_MOUSEACTIVATE) ||
242 (wParam == WM_MOUSEWHEEL) ||
243 (wParam == WM_NCLBUTTONDOWN) ||
244 (wParam == WM_NCMBUTTONDOWN) ||
245 (wParam == WM_NCRBUTTONDOWN))
246 {
247 HWND blocker = AwtWindow::GetModalBlocker(AwtComponent::GetTopLevelParentForWindow(hWnd));
248 if (::IsWindow(blocker)) {
249 BOOL onTaskbar = !(::WindowFromPoint(mhs->pt) == hWnd);
250 PopupBlockers(blocker, FALSE, ::GetForegroundWindow(), onTaskbar);
251 // return a nonzero value to prevent the system from passing
252 // the message to the target window procedure
253 return 1;
254 }
255 }
256 }
257
258 return CallNextHookEx(0, nCode, wParam, lParam);
259 }
260
261 /*
262 * The function goes through the hierarchy of the blockers and
263 * popups all the blockers. Note that the function starts from the top
264 * blocker and goes down to the blocker which is the bottom one.
265 * Using another traversal algorithm (bottom->top) may cause to flickering
266 * as the bottom blocker will cover the top blocker for a while.
267 */
268 void AwtDialog::PopupBlockers(HWND blocker, BOOL isModalHook, HWND prevFGWindow, BOOL onTaskbar)
269 {
270 HWND nextBlocker = AwtWindow::GetModalBlocker(blocker);
271 BOOL nextBlockerExists = ::IsWindow(nextBlocker);
272 if (nextBlockerExists) {
273 PopupBlockers(nextBlocker, isModalHook, prevFGWindow, onTaskbar);
274 }
275 PopupBlocker(blocker, nextBlocker, isModalHook, prevFGWindow, onTaskbar);
276 }
277
278 /*
279 * The function popups the blocker, for a non-blocked blocker we need
280 * to activate the blocker but if a blocker is blocked, then we need
281 * to change z-order of the blocker placing the blocker under the next blocker.
282 */
283 void AwtDialog::PopupBlocker(HWND blocker, HWND nextBlocker, BOOL isModalHook, HWND prevFGWindow, BOOL onTaskbar)
284 {
285 if (blocker == AwtToolkit::GetInstance().GetHWnd()) {
286 return;
287 }
288
289 // fix for 6494032
290 if (isModalHook && !::IsWindowVisible(blocker)) {
291 ::ShowWindow(blocker, SW_SHOWNA);
292 }
293
294 BOOL nextBlockerExists = ::IsWindow(nextBlocker);
295 UINT flags = SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE;
296
297 if (nextBlockerExists) {
298 // Fix for 6829546: if blocker is a top-most window, but window isn't, then
299 // calling ::SetWindowPos(dialog, blocker, ...) makes window top-most as well
300 BOOL topmostNextBlocker = (::GetWindowLong(nextBlocker, GWL_EXSTYLE) & WS_EX_TOPMOST) != 0;
301 BOOL topmostBlocker = (::GetWindowLong(blocker, GWL_EXSTYLE) & WS_EX_TOPMOST) != 0;
302 if (!topmostNextBlocker || topmostBlocker) {
303 ::SetWindowPos(blocker, nextBlocker, 0, 0, 0, 0, flags);
304 } else {
305 ::SetWindowPos(blocker, HWND_TOP, 0, 0, 0, 0, flags);
306 }
307 } else {
308 ::SetWindowPos(blocker, HWND_TOP, 0, 0, 0, 0, flags);
309 // no beep/flash if the mouse was clicked in the taskbar menu
310 // or the dialog is currently inactive
311 if (!isModalHook && !onTaskbar && (blocker == prevFGWindow)) {
312 AnimateModalBlocker(blocker);
313 }
314 ::BringWindowToTop(blocker);
315 ::SetForegroundWindow(blocker);
316 }
317 }
318
319 void AwtDialog::AnimateModalBlocker(HWND window)
320 {
321 ::MessageBeep(MB_OK);
322 // some heuristics: 3 times x 64 milliseconds
323 AwtWindow::FlashWindowEx(window, 3, 64, FLASHW_CAPTION);
324 }
325
326 LRESULT CALLBACK AwtDialog::MouseHookProc_NonTT(int nCode,
327 WPARAM wParam, LPARAM lParam)
328 {
329 static HWND lastHWnd = NULL;
330 if (nCode >= 0)
331 {
332 MOUSEHOOKSTRUCT *mhs = (MOUSEHOOKSTRUCT *)lParam;
333 HWND hWnd = mhs->hwnd;
334 HWND blocker = AwtWindow::GetModalBlocker(AwtComponent::GetTopLevelParentForWindow(hWnd));
335 if (::IsWindow(blocker)) {
336 if ((wParam == WM_MOUSEMOVE) ||
337 (wParam == WM_NCMOUSEMOVE))
338 {
339 if (lastHWnd != hWnd) {
340 static HCURSOR hArrowCur = ::LoadCursor(NULL, IDC_ARROW);
341 ::SetCursor(hArrowCur);
342 lastHWnd = hWnd;
343 }
344 ::PostMessage(hWnd, WM_SETCURSOR, (WPARAM)hWnd, 0);
345 } else if (wParam == WM_MOUSELEAVE) {
346 lastHWnd = NULL;
347 }
348
349 AwtDialog::MouseHookProc(nCode, wParam, lParam);
350 return 1;
351 }
352 }
353
354 return CallNextHookEx(0, nCode, wParam, lParam);
355 }
356
357 void AwtDialog::Show()
358 {
359 m_visible = true;
360 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
361
362 BOOL locationByPlatform = env->GetBooleanField(GetTarget(env), AwtWindow::locationByPlatformID);
363 if (locationByPlatform) {
364 moveToDefaultLocation();
365 }
366 EnableTranslucency(TRUE);
367 if (IsFocusableWindow() && (IsAutoRequestFocus() || IsFocusedWindowModalBlocker())) {
368 ::ShowWindow(GetHWnd(), SW_SHOW);
369 } else {
370 ::ShowWindow(GetHWnd(), SW_SHOWNA);
371 }
372 }
373
374 void AwtDialog::DoUpdateIcon()
375 {
376 AwtFrame::DoUpdateIcon();
377 //Workaround windows bug:
378 //Decorations are not updated correctly for owned dialogs
379 //when changing dlg with icon <--> dlg without icon
380 RECT winRect;
381 RECT clientRect;
382 ::GetWindowRect(GetHWnd(), &winRect);
383 ::GetClientRect(GetHWnd(), &clientRect);
384 ::MapWindowPoints(HWND_DESKTOP, GetHWnd(), (LPPOINT)&winRect, 2);
385 HRGN winRgn = CreateRectRgnIndirect(&winRect);
386 HRGN clientRgn = CreateRectRgnIndirect(&clientRect);
387 ::CombineRgn(winRgn, winRgn, clientRgn, RGN_DIFF);
388 ::RedrawWindow(GetHWnd(), NULL, winRgn, RDW_FRAME | RDW_INVALIDATE);
389 ::DeleteObject(winRgn);
390 ::DeleteObject(clientRgn);
391 }
392
393 HICON AwtDialog::GetEffectiveIcon(int iconType)
394 {
395 HWND hOwner = ::GetWindow(GetHWnd(), GW_OWNER);
396 BOOL isResizable = ((GetStyle() & WS_THICKFRAME) != 0);
397 BOOL smallIcon = ((iconType == ICON_SMALL) || (iconType == 2/*ICON_SMALL2*/));
398 HICON hIcon = (smallIcon) ? GetHIconSm() : GetHIcon();
399 if ((hIcon == NULL) && (isResizable || (hOwner == NULL))) {
400 //Java cup icon is not loaded in window class for dialogs
401 //It needs to be set explicitly for resizable dialogs
402 //and ownerless dialogs
403 hIcon = (smallIcon) ? AwtToolkit::GetInstance().GetAwtIconSm() :
404 AwtToolkit::GetInstance().GetAwtIcon();
405 } else if ((hIcon != NULL) && IsIconInherited() && !isResizable) {
406 //Non-resizable dialogs without explicitely set icon
407 //Should have no icon
408 hIcon = NULL;
409 }
410 return hIcon;
411 }
412
413 void AwtDialog::CheckInstallModalHook() {
414 VisibleModalDialogsCount++;
415 if (VisibleModalDialogsCount == 1) {
416 AWTModalHook = ::SetWindowsHookEx(WH_CBT, (HOOKPROC)ModalFilterProc,
417 0, AwtToolkit::MainThread());
418 AWTMouseHook = ::SetWindowsHookEx(WH_MOUSE, (HOOKPROC)MouseHookProc,
419 0, AwtToolkit::MainThread());
420 }
421 }
422
423 void AwtDialog::CheckUninstallModalHook() {
424 if (VisibleModalDialogsCount == 1) {
425 UnhookWindowsHookEx(AWTModalHook);
426 UnhookWindowsHookEx(AWTMouseHook);
427 }
428 VisibleModalDialogsCount--;
429 }
430
431 void AwtDialog::ModalPerformActivation(HWND hWnd)
432 {
433 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
434
435 AwtWindow *w = (AwtWindow *)AwtComponent::GetComponent(hWnd);
436 if ((w != NULL) && w->IsEmbeddedFrame()) {
437 jobject target = w->GetTarget(env);
438 env->CallVoidMethod(target, AwtFrame::activateEmbeddingTopLevelMID);
439 env->DeleteLocalRef(target);
440 } else {
441 ::BringWindowToTop(hWnd);
442 ::SetForegroundWindow(hWnd);
443 }
444 }
445
446 void AwtDialog::ModalActivateNextWindow(HWND dialogHWnd,
447 jobject dialogTarget, jobject dialogPeer)
448 {
449 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
450
451 jboolean exc;
452 jlongArray windows = (jlongArray) JNU_CallStaticMethodByName
453 (env,
454 &exc,
455 "sun/awt/windows/WWindowPeer",
456 "getActiveWindowHandles",
457 "(Ljava/awt/Component;)[J",
458 dialogTarget).l;
459 if (exc == JNI_TRUE) {
460 throw std::bad_alloc();
461 }
462 if (windows == NULL) {
463 return;
464 }
465
466 jboolean isCopy;
467 jlong *ws = env->GetLongArrayElements(windows, &isCopy);
468 if (ws == NULL) {
469 throw std::bad_alloc();
470 }
471 int windowsCount = env->GetArrayLength(windows);
472 for (int i = windowsCount - 1; i >= 0; i--) {
473 HWND w = (HWND)ws[i];
474 if ((w != dialogHWnd) && ModalCanBeActivated(w)) {
475 AwtDialog::ModalPerformActivation(w);
476 break;
477 }
478 }
479 env->ReleaseLongArrayElements(windows, ws, 0);
480
481 env->DeleteLocalRef(windows);
482 }
483
484 MsgRouting AwtDialog::WmShowModal()
485 {
486 DASSERT(::GetCurrentThreadId() == AwtToolkit::MainThread());
487
488 // fix for 6213128: release capture (got by popups, choices, etc) when
489 // modal dialog is shown
490 HWND capturer = ::GetCapture();
491 if (capturer != NULL) {
492 ::ReleaseCapture();
493 }
494
495 SendMessage(WM_AWT_COMPONENT_SHOW);
496
497 CheckInstallModalHook();
498
499 m_modalWnd = GetHWnd();
500
501 return mrConsume;
502 }
503
504 MsgRouting AwtDialog::WmEndModal()
505 {
506 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
507
508 DASSERT( ::GetCurrentThreadId() == AwtToolkit::MainThread() );
509 DASSERT( ::IsWindow(m_modalWnd) );
510
511 m_modalWnd = NULL;
512
513 CheckUninstallModalHook();
514
515 HWND parentHWnd = ::GetParent(GetHWnd());
516 jobject peer = GetPeer(env);
517 jobject target = GetTarget(env);
518 if (::GetForegroundWindow() == GetHWnd()) {
519 ModalActivateNextWindow(GetHWnd(), target, peer);
520 }
521 // hide the dialog
522 SendMessage(WM_AWT_COMPONENT_HIDE);
523
524 env->DeleteLocalRef(target);
525
526 return mrConsume;
527 }
528
529 void AwtDialog::SetResizable(BOOL isResizable)
530 {
531 // call superclass
532 AwtFrame::SetResizable(isResizable);
533
534 LONG style = GetStyle();
535 LONG xstyle = GetStyleEx();
536 if (isResizable || IsUndecorated()) {
537 // remove modal frame
538 xstyle &= ~WS_EX_DLGMODALFRAME;
539 } else {
540 // add modal frame
541 xstyle |= WS_EX_DLGMODALFRAME;
542 }
543 // dialogs are never minimizable/maximizable, so remove those bits
544 style &= ~(WS_MINIMIZEBOX|WS_MAXIMIZEBOX);
545 SetStyle(style);
546 SetStyleEx(xstyle);
547 RedrawNonClient();
548 }
549
550 // Adjust system menu so that:
551 // Non-resizable dialogs only have Move and Close items
552 // Resizable dialogs have the full system menu with
553 // Maximize, Minimize items disabled (the items
554 // get disabled by the native system).
555 // This perfectly mimics the native MS Windows behavior.
556 // Normally, Win32 dialog system menu handling is done via
557 // CreateDialog/DefDlgProc, but our dialogs are using DefWindowProc
558 // so we handle the system menu ourselves
559 void AwtDialog::UpdateSystemMenu()
560 {
561 HWND hWndSelf = GetHWnd();
562 BOOL isResizable = IsResizable();
563
564 // before restoring the default menu, check if there is an
565 // InputMethodManager menu item already. Note that it assumes
566 // that the length of the InputMethodManager menu item string
567 // should not be longer than 256 bytes.
568 MENUITEMINFO mii;
569 memset(&mii, 0, sizeof(MENUITEMINFO));
570 TCHAR immItem[256];
571 BOOL hasImm;
572 mii.cbSize = sizeof(MENUITEMINFO);
573 mii.fMask = MIIM_TYPE;
574 mii.cch = sizeof(immItem);
575 mii.dwTypeData = immItem;
576 hasImm = ::GetMenuItemInfo(GetSystemMenu(hWndSelf, FALSE),
577 SYSCOMMAND_IMM, FALSE, &mii);
578
579 // restore the default menu
580 ::GetSystemMenu(hWndSelf, TRUE);
581 // now get a working copy of the menu
582 HMENU hMenuSys = GetSystemMenu(hWndSelf, FALSE);
583
584 if (!isResizable) {
585 // remove inapplicable sizing commands
586 ::DeleteMenu(hMenuSys, SC_MINIMIZE, MF_BYCOMMAND);
587 ::DeleteMenu(hMenuSys, SC_RESTORE, MF_BYCOMMAND);
588 ::DeleteMenu(hMenuSys, SC_MAXIMIZE, MF_BYCOMMAND);
589 ::DeleteMenu(hMenuSys, SC_SIZE, MF_BYCOMMAND);
590 // remove separator if only 3 items left (Move, Separator, and Close)
591 if (::GetMenuItemCount(hMenuSys) == 3) {
592 MENUITEMINFO mi;
593 memset(&mi, 0, sizeof(MENUITEMINFO));
594 mi.cbSize = sizeof(MENUITEMINFO);
595 mi.fMask = MIIM_TYPE;
596 ::GetMenuItemInfo(hMenuSys, 1, TRUE, &mi);
597 if (mi.fType & MFT_SEPARATOR) {
598 ::DeleteMenu(hMenuSys, 1, MF_BYPOSITION);
599 }
600 }
601 }
602
603 // if there was the InputMethodManager menu item, restore it.
604 if (hasImm) {
605 ::AppendMenu(hMenuSys, MF_STRING, SYSCOMMAND_IMM, immItem);
606 }
607 }
608
609 // Override WmStyleChanged to adjust system menu for sizable/non-resizable dialogs
610 MsgRouting AwtDialog::WmStyleChanged(int wStyleType, LPSTYLESTRUCT lpss)
611 {
612 UpdateSystemMenu();
613 DoUpdateIcon();
614 return mrConsume;
615 }
616
617 MsgRouting AwtDialog::WmSize(UINT type, int w, int h)
618 {
619 if (type == SIZE_MAXIMIZED || type == SIZE_MINIMIZED
620 || (type == SIZE_RESTORED && !IsResizing()))
621 {
622 UpdateSystemMenu(); // adjust to reflect restored vs. maximized state
623 }
624
625 return AwtFrame::WmSize(type, w, h);
626 }
627
628 LRESULT AwtDialog::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
629 {
630 MsgRouting mr = mrDoDefault;
631 LRESULT retValue = 0L;
632
633 switch(message) {
634 case WM_AWT_DLG_SHOWMODAL:
635 mr = WmShowModal();
636 break;
637 case WM_AWT_DLG_ENDMODAL:
638 mr = WmEndModal();
639 break;
640 }
641
642 if (mr != mrConsume) {
643 retValue = AwtFrame::WindowProc(message, wParam, lParam);
644 }
645 return retValue;
646 }
647
648 void AwtDialog::_ShowModal(void *param)
649 {
650 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
651
652 jobject self = (jobject)param;
653
654 AwtDialog *d = NULL;
655
656 PDATA pData;
657 JNI_CHECK_PEER_GOTO(self, ret);
658 d = (AwtDialog *)pData;
659 if (::IsWindow(d->GetHWnd())) {
660 d->SendMessage(WM_AWT_DLG_SHOWMODAL);
661 }
662 ret:
663 env->DeleteGlobalRef(self);
664 }
665
666 void AwtDialog::_EndModal(void *param)
667 {
668 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
669
670 jobject self = (jobject)param;
671
672 AwtDialog *d = NULL;
673
674 PDATA pData;
675 JNI_CHECK_PEER_GOTO(self, ret);
676 d = (AwtDialog *)pData;
677 if (::IsWindow(d->GetHWnd())) {
678 d->SendMessage(WM_AWT_DLG_ENDMODAL);
679 }
680 ret:
681 env->DeleteGlobalRef(self);
682 }
683
684 void AwtDialog::_SetIMMOption(void *param)
685 {
686 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
687
688 SetIMMOptionStruct *sios = (SetIMMOptionStruct *)param;
689 jobject self = sios->dialog;
690 jstring option = sios->option;
691
692 int badAlloc = 0;
693 LPCTSTR coption;
694 LPCTSTR empty = TEXT("InputMethod");
695 AwtDialog *d = NULL;
696
697 PDATA pData;
698 JNI_CHECK_PEER_GOTO(self, ret);
699 JNI_CHECK_NULL_GOTO(option, "null IMMOption", ret);
700
701 d = (AwtDialog *)pData;
702 if (::IsWindow(d->GetHWnd()))
703 {
704 coption = JNU_GetStringPlatformChars(env, option, NULL);
705 if (coption == NULL)
706 {
707 badAlloc = 1;
708 }
709 if (!badAlloc)
710 {
711 HMENU hSysMenu = ::GetSystemMenu(d->GetHWnd(), FALSE);
712 ::AppendMenu(hSysMenu, MF_STRING, SYSCOMMAND_IMM, coption);
713
714 if (coption != empty)
715 {
716 JNU_ReleaseStringPlatformChars(env, option, coption);
717 }
718 }
719 }
720 ret:
721 env->DeleteGlobalRef(self);
722 env->DeleteGlobalRef(option);
723
724 delete sios;
725
726 if (badAlloc)
727 {
728 throw std::bad_alloc();
729 }
730 }
731
732 /************************************************************************
733 * Dialog native methods
734 */
735
736 extern "C" {
737
738 JNIEXPORT void JNICALL
739 Java_java_awt_Dialog_initIDs(JNIEnv *env, jclass cls)
740 {
741 TRY;
742
743 /* java.awt.Dialog fields and methods */
744 AwtDialog::titleID
745 = env->GetFieldID(cls, "title", "Ljava/lang/String;");
746 DASSERT(AwtDialog::titleID != NULL);
747 CHECK_NULL(AwtDialog::titleID);
748
749 AwtDialog::undecoratedID
750 = env->GetFieldID(cls,"undecorated","Z");
751 DASSERT(AwtDialog::undecoratedID != NULL);
752 CHECK_NULL(AwtDialog::undecoratedID);
753
754 CATCH_BAD_ALLOC;
755 }
756
757 } /* extern "C" */
758
759
760 /************************************************************************
761 * DialogPeer native methods
762 */
763
764 extern "C" {
765
766 /*
767 * Class: sun_awt_windows_WDialogPeer
768 * Method: create
769 * Signature: (Lsun/awt/windows/WComponentPeer;)V
770 */
771 JNIEXPORT void JNICALL
772 Java_sun_awt_windows_WDialogPeer_createAwtDialog(JNIEnv *env, jobject self,
773 jobject parent)
774 {
775 TRY;
776
777 PDATA pData;
778 AwtToolkit::CreateComponent(self, parent,
779 (AwtToolkit::ComponentFactory)
780 AwtDialog::Create);
781 JNI_CHECK_PEER_CREATION_RETURN(self);
782
783 CATCH_BAD_ALLOC;
784 }
785
786 /*
787 * Class: sun_awt_windows_WDialogPeer
788 * Method: _show
789 * Signature: ()V
790 */
791 JNIEXPORT void JNICALL
792 Java_sun_awt_windows_WDialogPeer_showModal(JNIEnv *env, jobject self)
793 {
794 TRY;
795
796 jobject selfGlobalRef = env->NewGlobalRef(self);
797
798 AwtToolkit::GetInstance().SyncCall(AwtDialog::_ShowModal,
799 (void *)selfGlobalRef);
800 // selfGlobalRef is deleted in _ShowModal
801
802 CATCH_BAD_ALLOC;
803 }
804
805 /*
806 * Class: sun_awt_windows_WDialogPeer
807 * Method: _hide
808 * Signature: ()V
809 */
810 JNIEXPORT void JNICALL
811 Java_sun_awt_windows_WDialogPeer_endModal(JNIEnv *env, jobject self)
812 {
813 TRY;
814
815 jobject selfGlobalRef = env->NewGlobalRef(self);
816
817 AwtToolkit::GetInstance().SyncCall(AwtDialog::_EndModal,
818 (void *)selfGlobalRef);
819 // selfGlobalRef is deleted in _EndModal
820
821 CATCH_BAD_ALLOC;
822 }
823
824 /*
825 * Class: sun_awt_windows_WFramePeer
826 * Method: pSetIMMOption
827 * Signature: (Ljava/lang/String;)V
828 */
829 JNIEXPORT void JNICALL
830 Java_sun_awt_windows_WDialogPeer_pSetIMMOption(JNIEnv *env, jobject self,
831 jstring option)
832 {
833 TRY;
834
835 SetIMMOptionStruct *sios = new SetIMMOptionStruct;
836 sios->dialog = env->NewGlobalRef(self);
837 sios->option = (jstring)env->NewGlobalRef(option);
838
839 AwtToolkit::GetInstance().SyncCall(AwtDialog::_SetIMMOption, sios);
840 // global refs and sios are deleted in _SetIMMOption
841
842 CATCH_BAD_ALLOC;
843 }
844 } /* extern "C" */