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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
*/
#include <com/sun/star/awt/MouseButton.hpp>
#include <com/sun/star/datatransfer/DataFlavor.hpp>
#include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
#include <cppuhelper/supportsservice.hxx>
#include <sal/log.hxx>
#include <QtDragAndDrop.hxx>
#include <QtFrame.hxx>
#include <QtTransferable.hxx>
#include <QtWidget.hxx>
#include <QtGui/QDrag>
using namespace com::sun::star;
QtDragSource::~QtDragSource() {}
void QtDragSource::deinitialize() { m_pFrame = nullptr; }
sal_Bool QtDragSource::isDragImageSupported() { return true; }
sal_Int32 QtDragSource::getDefaultCursor(sal_Int8) { return 0; }
void QtDragSource::initialize(const css::uno::Sequence<css::uno::Any>& rArguments)
{
if (rArguments.getLength() < 2)
{
throw uno::RuntimeException("DragSource::initialize: Cannot install window event handler",
getXWeak());
}
sal_IntPtr nFrame = 0;
rArguments.getConstArray()[1] >>= nFrame;
if (!nFrame)
{
throw uno::RuntimeException("DragSource::initialize: missing SalFrame", getXWeak());
}
m_pFrame = reinterpret_cast<QtFrame*>(nFrame);
m_pFrame->registerDragSource(this);
}
void QtDragSource::startDrag(
const datatransfer::dnd::DragGestureEvent& /*rEvent*/, sal_Int8 sourceActions,
sal_Int32 /*cursor*/, sal_Int32 /*image*/,
const css::uno::Reference<css::datatransfer::XTransferable>& rTrans,
const css::uno::Reference<css::datatransfer::dnd::XDragSourceListener>& rListener)
{
m_xListener = rListener;
if (m_pFrame)
{
QDrag* drag = new QDrag(m_pFrame->GetQWidget());
drag->setMimeData(new QtMimeData(rTrans));
// just a reminder that exec starts a nested event loop, so everything after
// this call is just executed, after D'n'D has finished!
drag->exec(toQtDropActions(sourceActions), getPreferredDropAction(sourceActions));
}
// the drop will eventually call fire_dragEnd, which will clear the listener.
// if D'n'D ends without success, we just get a leave event without any indicator,
// but the event loop will be terminated, so we have to try to inform the source of
// a failure in any way.
fire_dragEnd(datatransfer::dnd::DNDConstants::ACTION_NONE, false);
}
void QtDragSource::fire_dragEnd(sal_Int8 nAction, bool bDropSuccessful)
{
if (!m_xListener.is())
return;
datatransfer::dnd::DragSourceDropEvent aEv;
aEv.DropAction = nAction;
aEv.DropSuccess = bDropSuccessful;
auto xListener = m_xListener;
m_xListener.clear();
xListener->dragDropEnd(aEv);
}
OUString SAL_CALL QtDragSource::getImplementationName()
{
return "com.sun.star.datatransfer.dnd.VclQtDragSource";
}
sal_Bool SAL_CALL QtDragSource::supportsService(OUString const& ServiceName)
{
return cppu::supportsService(this, ServiceName);
}
css::uno::Sequence<OUString> SAL_CALL QtDragSource::getSupportedServiceNames()
{
return { "com.sun.star.datatransfer.dnd.QtDragSource" };
}
QtDropTarget::QtDropTarget()
: WeakComponentImplHelper(m_aMutex)
, m_pFrame(nullptr)
, m_bActive(false)
, m_nDefaultActions(0)
{
}
OUString SAL_CALL QtDropTarget::getImplementationName()
{
return "com.sun.star.datatransfer.dnd.VclQtDropTarget";
}
sal_Bool SAL_CALL QtDropTarget::supportsService(OUString const& ServiceName)
{
return cppu::supportsService(this, ServiceName);
}
css::uno::Sequence<OUString> SAL_CALL QtDropTarget::getSupportedServiceNames()
{
return { "com.sun.star.datatransfer.dnd.QtDropTarget" };
}
QtDropTarget::~QtDropTarget() {}
void QtDropTarget::deinitialize()
{
m_pFrame = nullptr;
m_bActive = false;
}
void QtDropTarget::initialize(const uno::Sequence<uno::Any>& rArguments)
{
if (rArguments.getLength() < 2)
{
throw uno::RuntimeException("DropTarget::initialize: Cannot install window event handler",
getXWeak());
}
sal_IntPtr nFrame = 0;
rArguments.getConstArray()[1] >>= nFrame;
if (!nFrame)
{
throw uno::RuntimeException("DropTarget::initialize: missing SalFrame", getXWeak());
}
m_nDropAction = datatransfer::dnd::DNDConstants::ACTION_NONE;
m_pFrame = reinterpret_cast<QtFrame*>(nFrame);
m_pFrame->registerDropTarget(this);
m_bActive = true;
}
void QtDropTarget::addDropTargetListener(
const uno::Reference<css::datatransfer::dnd::XDropTargetListener>& xListener)
{
::osl::Guard<::osl::Mutex> aGuard(m_aMutex);
m_aListeners.push_back(xListener);
}
void QtDropTarget::removeDropTargetListener(
const uno::Reference<css::datatransfer::dnd::XDropTargetListener>& xListener)
{
::osl::Guard<::osl::Mutex> aGuard(m_aMutex);
std::erase(m_aListeners, xListener);
}
sal_Bool QtDropTarget::isActive() { return m_bActive; }
void QtDropTarget::setActive(sal_Bool bActive) { m_bActive = bActive; }
sal_Int8 QtDropTarget::getDefaultActions() { return m_nDefaultActions; }
void QtDropTarget::setDefaultActions(sal_Int8 nDefaultActions)
{
m_nDefaultActions = nDefaultActions;
}
void QtDropTarget::fire_dragEnter(const css::datatransfer::dnd::DropTargetDragEnterEvent& dtde)
{
osl::ClearableGuard<::osl::Mutex> aGuard(m_aMutex);
std::vector<css::uno::Reference<css::datatransfer::dnd::XDropTargetListener>> aListeners(
m_aListeners);
aGuard.clear();
for (auto const& listener : aListeners)
{
listener->dragEnter(dtde);
}
}
void QtDropTarget::fire_dragOver(const css::datatransfer::dnd::DropTargetDragEnterEvent& dtde)
{
osl::ClearableGuard<::osl::Mutex> aGuard(m_aMutex);
std::vector<css::uno::Reference<css::datatransfer::dnd::XDropTargetListener>> aListeners(
m_aListeners);
aGuard.clear();
for (auto const& listener : aListeners)
listener->dragOver(dtde);
}
void QtDropTarget::fire_drop(const css::datatransfer::dnd::DropTargetDropEvent& dtde)
{
m_bDropSuccessful = true;
osl::ClearableGuard<osl::Mutex> aGuard(m_aMutex);
std::vector<css::uno::Reference<css::datatransfer::dnd::XDropTargetListener>> aListeners(
m_aListeners);
aGuard.clear();
for (auto const& listener : aListeners)
listener->drop(dtde);
}
void QtDropTarget::fire_dragExit(const css::datatransfer::dnd::DropTargetEvent& dte)
{
osl::ClearableGuard<::osl::Mutex> aGuard(m_aMutex);
std::vector<css::uno::Reference<css::datatransfer::dnd::XDropTargetListener>> aListeners(
m_aListeners);
aGuard.clear();
for (auto const& listener : aListeners)
listener->dragExit(dte);
}
void QtDropTarget::acceptDrag(sal_Int8 dragOperation) { m_nDropAction = dragOperation; }
void QtDropTarget::rejectDrag() { m_nDropAction = 0; }
void QtDropTarget::acceptDrop(sal_Int8 dropOperation) { m_nDropAction = dropOperation; }
void QtDropTarget::rejectDrop() { m_nDropAction = 0; }
void QtDropTarget::dropComplete(sal_Bool success)
{
m_bDropSuccessful = (m_bDropSuccessful && success);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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