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