summaryrefslogtreecommitdiffstats
path: root/src/plugins/platforms/winrt/qwinrtmessagedialoghelper.cpp
blob: d69c63e9a49574614b690e7e10323fc3b6a7d0d4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qwinrtmessagedialoghelper.h"
#include "qwinrttheme.h"

#include <QtGui/QTextDocument>
#include <QtCore/qfunctions_winrt.h>
#include <private/qeventdispatcher_winrt_p.h>

#include <functional>
#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();
    if (!options.data())
        return false;

    const QString informativeText = options->informativeText();
    const QString title = options->windowTitle();
    const QString text = informativeText.isEmpty() ? options->text() : (options->text() + QLatin1Char('\n') + informativeText);
    if (Qt::mightBeRichText(text)) {
        qWarning("Rich text detected, defaulting to QtWidgets-based dialog.");
        return false;
    }

    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");
    }

    hr = QEventDispatcherWinRT::runOnXamlThread([this, d, options, commandFactory, dialog]() {
        HRESULT hr;

        // Add Buttons
        ComPtr<IVector<IUICommand *>> dialogCommands;
        hr = dialog->get_Commands(&dialogCommands);
        RETURN_HR_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_HR_IF_FAILED("Failed to create message box command");
            ComPtr<IInspectable> id = Make<CommandId>(static_cast<StandardButton>(i));
            hr = command->put_Id(id.Get());
            RETURN_HR_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_HR_IF_FAILED("Failed to append message box command");
            if (i == Abort || i == Cancel || i == Close) {
                quint32 size;
                hr = dialogCommands->get_Size(&size);
                RETURN_HR_IF_FAILED("Failed to get command list size");
                hr = dialog->put_CancelCommandIndex(size - 1);
                RETURN_HR_IF_FAILED("Failed to set cancel index");
            }
        }

        ComPtr<IAsyncOperation<IUICommand *>> op;
        hr = dialog->ShowAsync(&op);
        RETURN_HR_IF_FAILED("Failed to show dialog");
        hr = op->put_Completed(Callback<DialogCompletedHandler>(this, &QWinRTMessageDialogHelper::onCompleted).Get());
        RETURN_HR_IF_FAILED("Failed to set dialog callback");
        d->shown = true;
        hr = op.As(&d->info);
        RETURN_HR_IF_FAILED("Failed to acquire AsyncInfo for MessageDialog");
        return hr;
    });

    RETURN_FALSE_IF_FAILED("Failed to show dialog")
    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);

    QEventLoopLocker locker(&d->loop);

    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