JDK-4327664 : MouseDragged,MouseReleased are not triggered by List for Middle mouse button
  • Type: Bug
  • Component: client-libs
  • Sub-Component: java.awt
  • Affected Version: 1.3.0
  • Priority: P4
  • Status: Closed
  • Resolution: Fixed
  • OS: windows_nt
  • CPU: x86
  • Submitted: 2000-04-04
  • Updated: 2000-10-11
  • Resolved: 2000-09-06
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Resolved: Release in which this issue/RFE has been resolved.
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Other
1.4.0 betaFixed
Related Reports
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JDK-4327654 - MouseDragged,MouseReleased are not triggered by TextField for MiddleMouseButton
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JDK-4327676 - MouseDragged,MouseReleased are not triggered by Checkbox for Middle mouse button
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JDK-4327639 - MouseDragged ,Mouse Released is not triggered by TextArea for Middlemouse button
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JDK-4327679 - MouseDragged,MouseReleased are not triggered by Button for Middle mouse button
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JDK-4327623 - MouseDragged, Released are not triggered by Label for left mouse button
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JDK-4327618 - MouseDragged,MouseReleased are not triggered by scrollbar for left mouse button
Description
In Windows,MouseDragged,MouseReleased Events are not triggered by List for Middle mouse button when mouse is dragged and Released outside the component.


How to reproduce the Bug? -------->
Run this sample code. You would see a frame with a list at the North.
Press the Middle mouse button inside the list and drag it.
Drag the mouse outside the list and drag it all over the screen without
releasing the mouse button. Release the mouse button when mouse pointer
is outside the list. Check whether Mouse Dragged Event,Mouse Released
Events are triggering for list or not.
Comments
CONVERTED DATA BugTraq+ Release Management Values COMMIT TO FIX: merlin FIXED IN: merlin-beta INTEGRATED IN: merlin-beta VERIFIED IN: merlin-beta
14-06-2004
EVALUATION Commit to fix in Merlin (SQE yellow bug). eric.hawkes@eng 2000-05-07 Name: biR10147 Date: 09/01/2000 ###@###.### The only way to deliver mouse events to the components when the mouse is outside the window is to capture the mouse on each pressing. As a result, notifications about the change of selection will not be delivered and ITEM_STATE_CHANGED event will not be fired, so we have to send the notifications manually. AwtComponent defines standard behavior, and AwtList overrides it to send notifications on WmMouseUp, and also to set the capture to list, not to its wrapper. ======================================================================
11-06-2004
SUGGESTED FIX Name: biR10147 Date: 09/01/2000 ###@###.### Capture the mouse over a component where dragging started so mouse events could be delivered to the components properly. ------- awt_Component.h ------- *************** *** 500,505 **** --- 500,507 ---- BOOL m_dragged; /* in drag operation */ virtual INLINE HWND GetWrappeeHandle() { return NULL; } + virtual void AwtComponent::SetDragCapture(); + virtual void AwtComponent::ReleaseDragCapture(); private: ------- awt_Component.cpp ------- *************** *** 3749,3754 **** --- 3749,3764 ---- env->DeleteLocalRef(target); } + void AwtComponent::SetDragCapture() + { + ::SetCapture(GetHWnd()); + } + + void AwtComponent::ReleaseDragCapture() + { + ::ReleaseCapture(); + } + void AwtComponent::SendMouseEvent(long id, jlong when, long x, long y, long modifiers, long clickCount, long popupTrigger, *************** *** 3795,3800 **** --- 3805,3819 ---- env->ExceptionDescribe(); env->ExceptionClear(); } + + if (id == java_awt_event_MouseEvent_MOUSE_PRESSED) { + SetDragCapture(); + } + + if (id == java_awt_event_MouseEvent_MOUSE_RELEASED) { + ReleaseDragCapture(); + } + DASSERT(mouseEvent != NULL); if (pMsg != 0) { AwtAWTEvent::saveMSG(env, pMsg, mouseEvent); ------- awt_List.h ------- *************** *** 95,100 **** --- 95,101 ---- /* * Windows message handler functions */ + MsgRouting WmMouseUp(UINT flags, int x, int y, int button); MsgRouting WmCommand(UINT id, HWND hWndChild, UINT notifyCode); /* for multifont list */ *************** *** 114,119 **** --- 115,121 ---- LRESULT DefWindowProc(UINT msg, WPARAM wParam, LPARAM lParam); + virtual void SetDragCapture(); void Reshape(int x, int y, int w, int h); INLINE LRESULT SendListMessage(UINT msg, WPARAM wParam=0, LPARAM lParam=0) ------- awt_List.cpp ------- *************** *** 237,242 **** --- 237,247 ---- ::DestroyWindow(hList); } + void AwtList::SetDragCapture() + { + SetCapture(GetWrappeeHandle()); + } + void AwtList::Reshape(int x, int y, int w, int h) { AwtComponent::Reshape(x, y, w, h); *************** *** 450,455 **** --- 455,469 ---- return mrConsume; } + MsgRouting + AwtList::WmMouseUp(UINT flags, int x, int y, int button) + { + if (button == LEFT_BUTTON) { + WmCommand(0, GetWrappeeHandle(), LBN_SELCHANGE); + } + return AwtComponent::WmMouseUp(flags, x, y, button); + } + MsgRouting AwtList::WmCommand(UINT id, HWND hWndChild, UINT notifyCode) { ======================================================================
11-06-2004