diff options
| -rw-r--r-- | src/plugins/platforms/windows/qwindowsdrag.cpp | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/plugins/platforms/windows/qwindowsdrag.cpp b/src/plugins/platforms/windows/qwindowsdrag.cpp index 777c45ae86..db06f81434 100644 --- a/src/plugins/platforms/windows/qwindowsdrag.cpp +++ b/src/plugins/platforms/windows/qwindowsdrag.cpp @@ -248,6 +248,7 @@ private: Mode m_mode; QWindowsDrag *m_drag; + QPointer<QWindow> m_windowUnderMouse; Qt::MouseButtons m_currentButtons; ActionCursorMap m_cursors; QWindowsDragCursorWindow *m_touchDragWindow; @@ -260,6 +261,7 @@ private: QWindowsOleDropSource::QWindowsOleDropSource(QWindowsDrag *drag) : m_mode(QWindowsCursor::cursorState() != QWindowsCursor::CursorSuppressed ? MouseDrag : TouchDrag) , m_drag(drag) + , m_windowUnderMouse(QWindowsContext::instance()->windowUnderMouse()) , m_currentButtons(Qt::NoButton) , m_touchDragWindow(0) { @@ -400,7 +402,19 @@ QWindowsOleDropSource::QueryContinueDrag(BOOL fEscapePressed, DWORD grfKeyState) case DRAGDROP_S_DROP: case DRAGDROP_S_CANCEL: QGuiApplicationPrivate::modifier_buttons = toQtKeyboardModifiers(grfKeyState); - QGuiApplicationPrivate::mouse_buttons = buttons; + if (buttons != QGuiApplicationPrivate::mouse_buttons) { + if (m_windowUnderMouse.isNull() || m_mode == TouchDrag || fEscapePressed == TRUE) { + QGuiApplicationPrivate::mouse_buttons = buttons; + } else { + // QTBUG 66447: Synthesize a mouse release to the window under mouse at + // start of the DnD operation as Windows does not send any. + const QPoint globalPos = QWindowsCursor::mousePosition(); + const QPoint localPos = m_windowUnderMouse->handle()->mapFromGlobal(globalPos); + QWindowSystemInterface::handleMouseEvent(m_windowUnderMouse.data(), + QPointF(localPos), QPointF(globalPos), + QWindowsMouseHandler::queryMouseButtons()); + } + } m_currentButtons = Qt::NoButton; break; |