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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 "lokclipboard.hxx"
#include <unordered_map>
#include <tools/lazydelete.hxx>
#include <vcl/svapp.hxx>
#include <sfx2/lokhelper.hxx>
#include <sal/log.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <com/sun/star/uno/XComponentContext.hpp>
using namespace css;
using namespace css::uno;
/* static */ osl::Mutex LOKClipboardFactory::gMutex;
static tools::DeleteOnDeinit<std::unordered_map<int, rtl::Reference<LOKClipboard>>> gClipboards{};
rtl::Reference<LOKClipboard> LOKClipboardFactory::getClipboardForCurView()
{
int nViewId = SfxLokHelper::getView(); // currently active.
osl::MutexGuard aGuard(gMutex);
auto it = gClipboards.get()->find(nViewId);
if (it != gClipboards.get()->end())
{
SAL_INFO("lok", "Got clip: " << it->second.get() << " from " << nViewId);
return it->second;
}
rtl::Reference<LOKClipboard> xClip(new LOKClipboard());
(*gClipboards.get())[nViewId] = xClip;
SAL_INFO("lok", "Created clip: " << xClip.get() << " for viewId " << nViewId);
return xClip;
}
void LOKClipboardFactory::releaseClipboardForView(int nViewId)
{
osl::MutexGuard aGuard(gMutex);
if (nViewId < 0) // clear all
{
gClipboards.get()->clear();
SAL_INFO("lok", "Released all clipboards on doc destroy\n");
}
else if (gClipboards.get())
{
auto it = gClipboards.get()->find(nViewId);
if (it != gClipboards.get()->end())
{
SAL_INFO("lok", "Releasing clip: " << it->second.get() << " for destroyed " << nViewId);
gClipboards.get()->erase(it);
}
}
}
uno::Reference<uno::XInterface>
SAL_CALL LOKClipboardFactory::createInstanceWithArguments(const Sequence<Any>& /* rArgs */)
{
return { static_cast<cppu::OWeakObject*>(getClipboardForCurView().get()) };
}
LOKClipboard::LOKClipboard()
: cppu::WeakComponentImplHelper<css::datatransfer::clipboard::XSystemClipboard,
css::lang::XServiceInfo>(m_aMutex)
{
// Encourage 'paste' menu items to always show up.
uno::Reference<datatransfer::XTransferable> xTransferable(new LOKTransferable());
setContents(xTransferable, uno::Reference<datatransfer::clipboard::XClipboardOwner>());
}
Sequence<OUString> LOKClipboard::getSupportedServiceNames_static()
{
Sequence<OUString> aRet{ u"com.sun.star.datatransfer.clipboard.LokClipboard"_ustr };
return aRet;
}
OUString LOKClipboard::getImplementationName()
{
return u"com.sun.star.datatransfer.LOKClipboard"_ustr;
}
Sequence<OUString> LOKClipboard::getSupportedServiceNames()
{
return getSupportedServiceNames_static();
}
sal_Bool LOKClipboard::supportsService(const OUString& ServiceName)
{
return cppu::supportsService(this, ServiceName);
}
Reference<css::datatransfer::XTransferable> LOKClipboard::getContents() { return m_xTransferable; }
void LOKClipboard::setContents(
const Reference<css::datatransfer::XTransferable>& xTrans,
const Reference<css::datatransfer::clipboard::XClipboardOwner>& xClipboardOwner)
{
osl::ClearableMutexGuard aGuard(m_aMutex);
Reference<datatransfer::clipboard::XClipboardOwner> xOldOwner(m_aOwner);
Reference<datatransfer::XTransferable> xOldContents(m_xTransferable);
m_xTransferable = xTrans;
m_aOwner = xClipboardOwner;
std::vector<Reference<datatransfer::clipboard::XClipboardListener>> aListeners(m_aListeners);
datatransfer::clipboard::ClipboardEvent aEv;
aEv.Contents = m_xTransferable;
SAL_INFO("lok", "Clip: " << this << " set contents to " << m_xTransferable);
aGuard.clear();
if (xOldOwner.is() && xOldOwner != xClipboardOwner)
xOldOwner->lostOwnership(this, xOldContents);
for (auto const& listener : aListeners)
{
listener->changedContents(aEv);
}
}
void LOKClipboard::addClipboardListener(
const Reference<datatransfer::clipboard::XClipboardListener>& listener)
{
osl::ClearableMutexGuard aGuard(m_aMutex);
m_aListeners.push_back(listener);
}
void LOKClipboard::removeClipboardListener(
const Reference<datatransfer::clipboard::XClipboardListener>& listener)
{
osl::ClearableMutexGuard aGuard(m_aMutex);
std::erase(m_aListeners, listener);
}
LOKTransferable::LOKTransferable(const OUString& sMimeType,
const css::uno::Sequence<sal_Int8>& aSequence)
{
m_aContent.reserve(1);
m_aFlavors = css::uno::Sequence<css::datatransfer::DataFlavor>(1);
initFlavourFromMime(m_aFlavors.getArray()[0], sMimeType);
uno::Any aContent;
if (m_aFlavors[0].DataType == cppu::UnoType<OUString>::get())
{
auto pText = reinterpret_cast<const char*>(aSequence.getConstArray());
aContent <<= OUString(pText, aSequence.getLength(), RTL_TEXTENCODING_UTF8);
}
else
aContent <<= aSequence;
m_aContent.push_back(aContent);
}
/// Use to ensure we have some dummy content on the clipboard to allow a 1st 'paste'
LOKTransferable::LOKTransferable()
{
m_aContent.reserve(1);
m_aFlavors = css::uno::Sequence<css::datatransfer::DataFlavor>(1);
initFlavourFromMime(m_aFlavors.getArray()[0], u"text/plain"_ustr);
uno::Any aContent;
aContent <<= OUString();
m_aContent.push_back(aContent);
}
// cf. sot/source/base/exchange.cxx for these two exceptional types.
void LOKTransferable::initFlavourFromMime(css::datatransfer::DataFlavor& rFlavor,
OUString aMimeType)
{
if (aMimeType.startsWith("text/plain"))
{
aMimeType = "text/plain;charset=utf-16";
rFlavor.DataType = cppu::UnoType<OUString>::get();
}
else if (aMimeType == "application/x-libreoffice-tsvc")
rFlavor.DataType = cppu::UnoType<OUString>::get();
else
rFlavor.DataType = cppu::UnoType<uno::Sequence<sal_Int8>>::get();
rFlavor.MimeType = aMimeType;
rFlavor.HumanPresentableName = aMimeType;
}
LOKTransferable::LOKTransferable(const size_t nInCount, const char** pInMimeTypes,
const size_t* pInSizes, const char** pInStreams)
{
m_aContent.reserve(nInCount);
m_aFlavors = css::uno::Sequence<css::datatransfer::DataFlavor>(nInCount);
auto p_aFlavors = m_aFlavors.getArray();
for (size_t i = 0; i < nInCount; ++i)
{
initFlavourFromMime(p_aFlavors[i], OUString::fromUtf8(pInMimeTypes[i]));
uno::Any aContent;
if (m_aFlavors[i].DataType == cppu::UnoType<OUString>::get())
aContent <<= OUString(pInStreams[i], pInSizes[i], RTL_TEXTENCODING_UTF8);
else
aContent <<= css::uno::Sequence<sal_Int8>(
reinterpret_cast<const sal_Int8*>(pInStreams[i]), pInSizes[i]);
m_aContent.push_back(aContent);
}
}
uno::Any SAL_CALL LOKTransferable::getTransferData(const datatransfer::DataFlavor& rFlavor)
{
assert(m_aContent.size() == static_cast<size_t>(m_aFlavors.getLength()));
for (size_t i = 0; i < m_aContent.size(); ++i)
{
if (m_aFlavors[i].MimeType == rFlavor.MimeType)
{
if (m_aFlavors[i].DataType != rFlavor.DataType)
SAL_WARN("lok", "Horror type mismatch!");
return m_aContent[i];
}
}
return {};
}
uno::Sequence<datatransfer::DataFlavor> SAL_CALL LOKTransferable::getTransferDataFlavors()
{
return m_aFlavors;
}
sal_Bool SAL_CALL LOKTransferable::isDataFlavorSupported(const datatransfer::DataFlavor& rFlavor)
{
return std::find_if(std::cbegin(m_aFlavors), std::cend(m_aFlavors),
[&rFlavor](const datatransfer::DataFlavor& i) {
return i.MimeType == rFlavor.MimeType && i.DataType == rFlavor.DataType;
})
!= std::cend(m_aFlavors);
}
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
desktop_LOKClipboard_get_implementation(css::uno::XComponentContext*,
css::uno::Sequence<css::uno::Any> const& /*args*/)
{
SolarMutexGuard aGuard;
cppu::OWeakObject* pClipboard = LOKClipboardFactory::getClipboardForCurView().get();
pClipboard->acquire();
return pClipboard;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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