63 struct RemoveStruct {
64 jobject choice;
65 jint index;
66 };
67
68 /************************************************************************/
69
70 /* Bug #4509045: set if SetDragCapture captured mouse */
71
72 BOOL AwtChoice::mouseCapture = FALSE;
73
74 /* Bug #4338368: consume the spurious MouseUp when the choice loses focus */
75
76 BOOL AwtChoice::skipNextMouseUp = FALSE;
77
78 BOOL AwtChoice::sm_isMouseMoveInList = FALSE;
79
80 static const UINT MINIMUM_NUMBER_OF_VISIBLE_ITEMS = 8;
81
82 /*************************************************************************
83 * AwtChoice class methods
84 */
85
86 AwtChoice::AwtChoice() {
87 m_hList = NULL;
88 m_listDefWindowProc = NULL;
89 m_selectedItem = -1;
90 }
91
92 LPCTSTR AwtChoice::GetClassName() {
93 return TEXT("COMBOBOX"); /* System provided combobox class */
94 }
95
96 void AwtChoice::Dispose() {
97 if (m_hList != NULL && m_listDefWindowProc != NULL) {
98 ComCtl32Util::GetInstance().UnsubclassHWND(m_hList, ListWindowProc, m_listDefWindowProc);
99 }
100 AwtComponent::Dispose();
101 }
102
103 AwtChoice* AwtChoice::Create(jobject peer, jobject parent) {
104
105
106 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
107
108 jobject target = NULL;
109 AwtChoice* c = NULL;
110 RECT rc;
111
112 try {
113 if (env->EnsureLocalCapacity(1) < 0) {
114 return NULL;
115 }
116 AwtCanvas* awtParent;
117
118 JNI_CHECK_NULL_GOTO(parent, "null parent", done);
119
120 awtParent = (AwtCanvas*)JNI_GET_PDATA(parent);
121 JNI_CHECK_NULL_GOTO(awtParent, "null awtParent", done);
122
123 target = env->GetObjectField(peer, AwtObject::targetID);
124 JNI_CHECK_NULL_GOTO(target, "null target", done);
125
421 case WM_LBUTTONUP: {
422 lastClickX = -1;
423 lastClickY = -1;
424
425 AwtChoice *c = (AwtChoice *)::GetWindowLongPtr(hwnd, GWLP_USERDATA);
426 if (c != NULL) {
427 // forward the msg to the choice
428 c->WindowProc(message, wParam, lParam);
429 }
430 }
431 }
432 return ComCtl32Util::GetInstance().DefWindowProc(NULL, hwnd, message, wParam, lParam);
433
434 CATCH_BAD_ALLOC_RET(0);
435 }
436
437
438 MsgRouting AwtChoice::WmNotify(UINT notifyCode)
439 {
440 if (notifyCode == CBN_SELCHANGE) {
441 int selectedItem = (int)SendMessage(CB_GETCURSEL);
442 if (selectedItem != CB_ERR && m_selectedItem != selectedItem){
443 m_selectedItem = selectedItem;
444 DoCallback("handleAction", "(I)V", selectedItem);
445 }
446 } else if (notifyCode == CBN_DROPDOWN) {
447
448 if (m_hList == NULL) {
449 COMBOBOXINFO cbi;
450 cbi.cbSize = sizeof(COMBOBOXINFO);
451 ::GetComboBoxInfo(GetHWnd(), &cbi);
452 m_hList = cbi.hwndList;
453 m_listDefWindowProc = ComCtl32Util::GetInstance().SubclassHWND(m_hList, ListWindowProc);
454 DASSERT(::GetWindowLongPtr(m_hList, GWLP_USERDATA) == NULL);
455 ::SetWindowLongPtr(m_hList, GWLP_USERDATA, (LONG_PTR)this);
456 }
457 sm_isMouseMoveInList = FALSE;
458
459 // Clicking in the dropdown list steals focus from the proxy.
460 // So, set the focus-restore flag up.
461 SetRestoreFocus(TRUE);
462 } else if (notifyCode == CBN_CLOSEUP) {
463 SetRestoreFocus(FALSE);
464 }
677
678 AwtChoice *c = NULL;
679
680 PDATA pData;
681 JNI_CHECK_PEER_GOTO(choice, done);
682
683 c = (AwtChoice *)pData;
684 if (::IsWindow(c->GetHWnd()) && c->SendMessage(CB_GETDROPPEDSTATE, 0, 0)) {
685 c->SendMessage(CB_SHOWDROPDOWN, FALSE, 0);
686 }
687
688 done:
689 env->DeleteGlobalRef(choice);
690 }
691
692 /************************************************************************
693 * WChoicePeer native methods
694 */
695
696 extern "C" {
697
698 /*
699 * Class: sun_awt_windows_WChoicePeer
700 * Method: select
701 * Signature: (I)V
702 */
703 JNIEXPORT void JNICALL
704 Java_sun_awt_windows_WChoicePeer_select(JNIEnv *env, jobject self,
705 jint index)
706 {
707 TRY;
708
709 SelectStruct *ss = new SelectStruct;
710 ss->choice = env->NewGlobalRef(self);
711 ss->index = index;
712
713 AwtToolkit::GetInstance().SyncCall(AwtChoice::_Select, ss);
714 // global refs and ss are removed in _Select
715
716 CATCH_BAD_ALLOC;
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63 struct RemoveStruct {
64 jobject choice;
65 jint index;
66 };
67
68 /************************************************************************/
69
70 /* Bug #4509045: set if SetDragCapture captured mouse */
71
72 BOOL AwtChoice::mouseCapture = FALSE;
73
74 /* Bug #4338368: consume the spurious MouseUp when the choice loses focus */
75
76 BOOL AwtChoice::skipNextMouseUp = FALSE;
77
78 BOOL AwtChoice::sm_isMouseMoveInList = FALSE;
79
80 static const UINT MINIMUM_NUMBER_OF_VISIBLE_ITEMS = 8;
81
82 /*************************************************************************
83 * AwtChoice fields
84 */
85
86 jfieldID AwtChoice::selectedIndexID;
87
88 /*************************************************************************
89 * AwtChoice class methods
90 */
91
92 AwtChoice::AwtChoice() {
93 m_hList = NULL;
94 m_listDefWindowProc = NULL;
95 }
96
97 LPCTSTR AwtChoice::GetClassName() {
98 return TEXT("COMBOBOX"); /* System provided combobox class */
99 }
100
101 void AwtChoice::Dispose() {
102 if (m_hList != NULL && m_listDefWindowProc != NULL) {
103 ComCtl32Util::GetInstance().UnsubclassHWND(m_hList, ListWindowProc, m_listDefWindowProc);
104 }
105 AwtComponent::Dispose();
106 }
107
108 AwtChoice* AwtChoice::Create(jobject peer, jobject parent) {
109
110 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
111
112 jobject target = NULL;
113 AwtChoice* c = NULL;
114 RECT rc;
115
116 try {
117 if (env->EnsureLocalCapacity(1) < 0) {
118 return NULL;
119 }
120 AwtCanvas* awtParent;
121
122 JNI_CHECK_NULL_GOTO(parent, "null parent", done);
123
124 awtParent = (AwtCanvas*)JNI_GET_PDATA(parent);
125 JNI_CHECK_NULL_GOTO(awtParent, "null awtParent", done);
126
127 target = env->GetObjectField(peer, AwtObject::targetID);
128 JNI_CHECK_NULL_GOTO(target, "null target", done);
129
425 case WM_LBUTTONUP: {
426 lastClickX = -1;
427 lastClickY = -1;
428
429 AwtChoice *c = (AwtChoice *)::GetWindowLongPtr(hwnd, GWLP_USERDATA);
430 if (c != NULL) {
431 // forward the msg to the choice
432 c->WindowProc(message, wParam, lParam);
433 }
434 }
435 }
436 return ComCtl32Util::GetInstance().DefWindowProc(NULL, hwnd, message, wParam, lParam);
437
438 CATCH_BAD_ALLOC_RET(0);
439 }
440
441
442 MsgRouting AwtChoice::WmNotify(UINT notifyCode)
443 {
444 if (notifyCode == CBN_SELCHANGE) {
445 int selectedIndex = (int)SendMessage(CB_GETCURSEL);
446
447 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
448 jobject target = GetTarget(env);
449 int previousIndex = env->GetIntField(target, AwtChoice::selectedIndexID);
450
451 if (selectedIndex != CB_ERR && selectedIndex != previousIndex){
452 DoCallback("handleAction", "(I)V", selectedIndex);
453 }
454 } else if (notifyCode == CBN_DROPDOWN) {
455
456 if (m_hList == NULL) {
457 COMBOBOXINFO cbi;
458 cbi.cbSize = sizeof(COMBOBOXINFO);
459 ::GetComboBoxInfo(GetHWnd(), &cbi);
460 m_hList = cbi.hwndList;
461 m_listDefWindowProc = ComCtl32Util::GetInstance().SubclassHWND(m_hList, ListWindowProc);
462 DASSERT(::GetWindowLongPtr(m_hList, GWLP_USERDATA) == NULL);
463 ::SetWindowLongPtr(m_hList, GWLP_USERDATA, (LONG_PTR)this);
464 }
465 sm_isMouseMoveInList = FALSE;
466
467 // Clicking in the dropdown list steals focus from the proxy.
468 // So, set the focus-restore flag up.
469 SetRestoreFocus(TRUE);
470 } else if (notifyCode == CBN_CLOSEUP) {
471 SetRestoreFocus(FALSE);
472 }
685
686 AwtChoice *c = NULL;
687
688 PDATA pData;
689 JNI_CHECK_PEER_GOTO(choice, done);
690
691 c = (AwtChoice *)pData;
692 if (::IsWindow(c->GetHWnd()) && c->SendMessage(CB_GETDROPPEDSTATE, 0, 0)) {
693 c->SendMessage(CB_SHOWDROPDOWN, FALSE, 0);
694 }
695
696 done:
697 env->DeleteGlobalRef(choice);
698 }
699
700 /************************************************************************
701 * WChoicePeer native methods
702 */
703
704 extern "C" {
705
706 JNIEXPORT void JNICALL
707 Java_java_awt_Choice_initIDs(JNIEnv *env, jclass cls)
708 {
709 TRY;
710 AwtChoice::selectedIndexID = env->GetFieldID(cls, "selectedIndex", "I");
711 DASSERT(AwtChoice::selectedIndexID);
712 CATCH_BAD_ALLOC;
713 }
714
715 /*
716 * Class: sun_awt_windows_WChoicePeer
717 * Method: select
718 * Signature: (I)V
719 */
720 JNIEXPORT void JNICALL
721 Java_sun_awt_windows_WChoicePeer_select(JNIEnv *env, jobject self,
722 jint index)
723 {
724 TRY;
725
726 SelectStruct *ss = new SelectStruct;
727 ss->choice = env->NewGlobalRef(self);
728 ss->index = index;
729
730 AwtToolkit::GetInstance().SyncCall(AwtChoice::_Select, ss);
731 // global refs and ss are removed in _Select
732
733 CATCH_BAD_ALLOC;
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