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Diffstat (limited to 'src/plugins/platforms/winrt/qwinrtclipboard.cpp')
| -rw-r--r-- | src/plugins/platforms/winrt/qwinrtclipboard.cpp | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/plugins/platforms/winrt/qwinrtclipboard.cpp b/src/plugins/platforms/winrt/qwinrtclipboard.cpp new file mode 100644 index 0000000000..4e71490902 --- /dev/null +++ b/src/plugins/platforms/winrt/qwinrtclipboard.cpp @@ -0,0 +1,185 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL3$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPLv3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or later as published by the Free +** Software Foundation and appearing in the file LICENSE.GPL included in +** the packaging of this file. Please review the following information to +** ensure the GNU General Public License version 2.0 requirements will be +** met: http://www.gnu.org/licenses/gpl-2.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qwinrtclipboard.h" + +#include <QtCore/QCoreApplication> +#include <QtCore/qfunctions_winrt.h> +#include <QtCore/private/qeventdispatcher_winrt_p.h> + +#include <Windows.ApplicationModel.datatransfer.h> + +#include <functional> + +using namespace ABI::Windows::ApplicationModel::DataTransfer; +using namespace ABI::Windows::Foundation; +using namespace Microsoft::WRL; +using namespace Microsoft::WRL::Wrappers; + +typedef IEventHandler<IInspectable *> ContentChangedHandler; + +#define RETURN_NULLPTR_IF_FAILED(msg) RETURN_IF_FAILED(msg, return nullptr) + +QT_BEGIN_NAMESPACE + +QWinRTClipboard::QWinRTClipboard() +{ +#ifndef Q_OS_WINPHONE + QEventDispatcherWinRT::runOnXamlThread([this]() { + HRESULT hr; + hr = GetActivationFactory(HString::MakeReference(RuntimeClass_Windows_ApplicationModel_DataTransfer_Clipboard).Get(), + &m_nativeClipBoard); + Q_ASSERT_SUCCEEDED(hr); + + EventRegistrationToken tok; + hr = m_nativeClipBoard->add_ContentChanged(Callback<ContentChangedHandler>(this, &QWinRTClipboard::onContentChanged).Get(), &tok); + Q_ASSERT_SUCCEEDED(hr); + + return hr; + }); +#endif // !Q_OS_WINPHONE +} + +QMimeData *QWinRTClipboard::mimeData(QClipboard::Mode mode) +{ + if (!supportsMode(mode)) + return nullptr; + +#ifndef Q_OS_WINPHONE + ComPtr<IDataPackageView> view; + HRESULT hr; + hr = m_nativeClipBoard->GetContent(&view); + RETURN_NULLPTR_IF_FAILED("Could not get clipboard content."); + + ComPtr<IAsyncOperation<HSTRING>> op; + HString result; + // This throws a security exception (WinRT originate error / 0x40080201. + // Unfortunately there seems to be no way to avoid this, neither + // running on the XAML thread, nor some other way. Stack Overflow + // confirms this problem since Windows (Phone) 8.0. + hr = view->GetTextAsync(&op); + RETURN_NULLPTR_IF_FAILED("Could not get clipboard text."); + + hr = QWinRTFunctions::await(op, result.GetAddressOf()); + RETURN_NULLPTR_IF_FAILED("Could not get clipboard text content"); + + quint32 size; + const wchar_t *textStr = result.GetRawBuffer(&size); + QString text = QString::fromWCharArray(textStr, size); + text.replace(QStringLiteral("\r\n"), QStringLiteral("\n")); + m_mimeData.setText(text); + + return &m_mimeData; +#else // Q_OS_WINPHONE + return QPlatformClipboard::mimeData(mode); +#endif // Q_OS_WINPHONE +} + +// Inspired by QWindowsMimeText::convertFromMime +inline QString convertToWindowsLineEnding(const QString &text) +{ + const QChar *u = text.unicode(); + QString res; + const int s = text.length(); + int maxsize = s + s / 40 + 3; + res.resize(maxsize); + int ri = 0; + bool cr = false; + for (int i = 0; i < s; ++i) { + if (*u == QLatin1Char('\r')) + cr = true; + else { + if (*u == QLatin1Char('\n') && !cr) + res[ri++] = QLatin1Char('\r'); + cr = false; + } + res[ri++] = *u; + if (ri+3 >= maxsize) { + maxsize += maxsize / 4; + res.resize(maxsize); + } + ++u; + } + res.truncate(ri); + return res; +} + +void QWinRTClipboard::setMimeData(QMimeData *data, QClipboard::Mode mode) +{ + if (!supportsMode(mode)) + return; + +#ifndef Q_OS_WINPHONE + const QString text = data->text(); + HRESULT hr = QEventDispatcherWinRT::runOnXamlThread([this, text]() { + HRESULT hr; + ComPtr<IDataPackage> package; + hr = RoActivateInstance(HString::MakeReference(RuntimeClass_Windows_ApplicationModel_DataTransfer_DataPackage).Get(), + &package); + + const QString nativeString = convertToWindowsLineEnding(text); + HStringReference textRef(reinterpret_cast<LPCWSTR>(nativeString.utf16()), nativeString.length()); + + hr = package->SetText(textRef.Get()); + RETURN_HR_IF_FAILED("Could not set text to clipboard data package."); + + hr = m_nativeClipBoard->SetContent(package.Get()); + RETURN_HR_IF_FAILED("Could not set clipboard content."); + return S_OK; + }); + RETURN_VOID_IF_FAILED("Could not set clipboard text."); + emitChanged(mode); +#else // Q_OS_WINPHONE + QPlatformClipboard::setMimeData(data, mode); +#endif // Q_OS_WINPHONE +} + +bool QWinRTClipboard::supportsMode(QClipboard::Mode mode) const +{ +#ifndef Q_OS_WINPHONE + return mode == QClipboard::Clipboard; +#else + return QPlatformClipboard::supportsMode(mode); +#endif +} + +HRESULT QWinRTClipboard::onContentChanged(IInspectable *, IInspectable *) +{ + emitChanged(QClipboard::Clipboard); + return S_OK; +} + +QT_END_NAMESPACE |