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Diffstat (limited to 'src/plugins/platforms/winrt/qwinrtmessagedialoghelper.cpp')
| -rw-r--r-- | src/plugins/platforms/winrt/qwinrtmessagedialoghelper.cpp | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/src/plugins/platforms/winrt/qwinrtmessagedialoghelper.cpp b/src/plugins/platforms/winrt/qwinrtmessagedialoghelper.cpp new file mode 100644 index 0000000000..6de90ba1ec --- /dev/null +++ b/src/plugins/platforms/winrt/qwinrtmessagedialoghelper.cpp @@ -0,0 +1,232 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 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 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qwinrtmessagedialoghelper.h" +#include "qwinrttheme.h" + +#include <QtCore/qfunctions_winrt.h> + +#include <windows.ui.popups.h> +#include <windows.foundation.h> +#include <windows.foundation.collections.h> +#include <wrl.h> + +using namespace ABI::Windows::Foundation; +using namespace ABI::Windows::Foundation::Collections; +using namespace ABI::Windows::UI::Popups; +using namespace Microsoft::WRL; +using namespace Microsoft::WRL::Wrappers; + +typedef IAsyncOperationCompletedHandler<IUICommand *> DialogCompletedHandler; + +QT_BEGIN_NAMESPACE + +class CommandId : public RuntimeClass<IInspectable> +{ +public: + CommandId(QPlatformDialogHelper::StandardButton button) + : button(button) { } + QPlatformDialogHelper::StandardButton button; +}; + +class QWinRTMessageDialogHelperPrivate +{ +public: + const QWinRTTheme *theme; + bool shown; + ComPtr<IAsyncInfo> info; + QEventLoop loop; +}; + +QWinRTMessageDialogHelper::QWinRTMessageDialogHelper(const QWinRTTheme *theme) + : QPlatformMessageDialogHelper(), d_ptr(new QWinRTMessageDialogHelperPrivate) +{ + Q_D(QWinRTMessageDialogHelper); + + d->theme = theme; + d->shown = false; +} + +QWinRTMessageDialogHelper::~QWinRTMessageDialogHelper() +{ + Q_D(QWinRTMessageDialogHelper); + + if (d->shown) + hide(); +} + +void QWinRTMessageDialogHelper::exec() +{ + Q_D(QWinRTMessageDialogHelper); + + if (!d->shown) + show(Qt::Dialog, Qt::ApplicationModal, 0); + d->loop.exec(); +} + +bool QWinRTMessageDialogHelper::show(Qt::WindowFlags windowFlags, Qt::WindowModality windowModality, QWindow *parent) +{ + Q_UNUSED(windowFlags) + Q_UNUSED(windowModality) + Q_UNUSED(parent) + Q_D(QWinRTMessageDialogHelper); + + QSharedPointer<QMessageDialogOptions> options = this->options(); + const QString informativeText = options->informativeText(); + const QString title = options->windowTitle(); + const QString text = informativeText.isEmpty() ? options->text() : (options->text() + QLatin1Char('\n') + informativeText); + + HRESULT hr; + ComPtr<IMessageDialogFactory> dialogFactory; + hr = RoGetActivationFactory(HString::MakeReference(RuntimeClass_Windows_UI_Popups_MessageDialog).Get(), + IID_PPV_ARGS(&dialogFactory)); + RETURN_FALSE_IF_FAILED("Failed to create dialog factory"); + + ComPtr<IUICommandFactory> commandFactory; + hr = RoGetActivationFactory(HString::MakeReference(RuntimeClass_Windows_UI_Popups_UICommand).Get(), + IID_PPV_ARGS(&commandFactory)); + RETURN_FALSE_IF_FAILED("Failed to create command factory"); + + ComPtr<IMessageDialog> dialog; + HStringReference nativeText(reinterpret_cast<LPCWSTR>(text.utf16()), text.size()); + if (!title.isEmpty()) { + HStringReference nativeTitle(reinterpret_cast<LPCWSTR>(title.utf16()), title.size()); + hr = dialogFactory->CreateWithTitle(nativeText.Get(), nativeTitle.Get(), &dialog); + RETURN_FALSE_IF_FAILED("Failed to create dialog with title"); + } else { + hr = dialogFactory->Create(nativeText.Get(), &dialog); + RETURN_FALSE_IF_FAILED("Failed to create dialog"); + } + + // Add Buttons + ComPtr<IVector<IUICommand *>> dialogCommands; + hr = dialog->get_Commands(&dialogCommands); + RETURN_FALSE_IF_FAILED("Failed to get dialog commands"); + + // If no button is specified we need to create one to get close notification + int buttons = options->standardButtons(); + if (buttons == 0) + buttons = Ok; + + for (int i = FirstButton; i < LastButton; i<<=1) { + if (!(buttons & i)) + continue; + // Add native command + const QString label = d->theme->standardButtonText(i); + HStringReference nativeLabel(reinterpret_cast<LPCWSTR>(label.utf16()), label.size()); + ComPtr<IUICommand> command; + hr = commandFactory->Create(nativeLabel.Get(), &command); + RETURN_FALSE_IF_FAILED("Failed to create message box command"); + ComPtr<IInspectable> id = Make<CommandId>(static_cast<StandardButton>(i)); + hr = command->put_Id(id.Get()); + RETURN_FALSE_IF_FAILED("Failed to set command ID"); + hr = dialogCommands->Append(command.Get()); + if (hr == E_BOUNDS) { + qErrnoWarning(hr, "The WinRT message dialog supports a maximum of three buttons"); + continue; + } + RETURN_FALSE_IF_FAILED("Failed to append message box command"); + if (i == Abort || i == Cancel || i == Close) { + quint32 size; + hr = dialogCommands->get_Size(&size); + RETURN_FALSE_IF_FAILED("Failed to get command list size"); + hr = dialog->put_CancelCommandIndex(size - 1); + RETURN_FALSE_IF_FAILED("Failed to set cancel index"); + } + } + + ComPtr<IAsyncOperation<IUICommand *>> op; + hr = dialog->ShowAsync(&op); + RETURN_FALSE_IF_FAILED("Failed to show dialog"); + hr = op->put_Completed(Callback<DialogCompletedHandler>(this, &QWinRTMessageDialogHelper::onCompleted).Get()); + RETURN_FALSE_IF_FAILED("Failed to set dialog callback"); + + d->shown = true; + hr = op.As(&d->info); + RETURN_FALSE_IF_FAILED("Failed to acquire AsyncInfo for MessageDialog"); + + return true; +} + +void QWinRTMessageDialogHelper::hide() +{ + Q_D(QWinRTMessageDialogHelper); + + if (!d->shown) + return; + + HRESULT hr = d->info->Cancel(); + if (FAILED(hr)) + qErrnoWarning(hr, "Failed to cancel dialog operation"); + + d->shown = false; +} + +HRESULT QWinRTMessageDialogHelper::onCompleted(IAsyncOperation<IUICommand *> *asyncInfo, AsyncStatus status) +{ + Q_UNUSED(status); + Q_D(QWinRTMessageDialogHelper); + + if (d->loop.isRunning()) + d->loop.exit(); + + d->shown = false; + + if (status == Canceled) { + emit reject(); + return S_OK; + } + + HRESULT hr; + ComPtr<IUICommand> command; + hr = asyncInfo->GetResults(&command); + RETURN_OK_IF_FAILED("Failed to get command"); + + ComPtr<CommandId> id; + hr = command->get_Id(&id); + RETURN_OK_IF_FAILED("Failed to get command ID"); + + ButtonRole role = buttonRole(id->button); + emit clicked(id->button, role); + return S_OK; +} + +QT_END_NAMESPACE |