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
245
246
|
// Copyright (c) 2011-2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#if defined(HAVE_CONFIG_H)
#include <config/bitcoin-config.h>
#endif
#include <qt/notificator.h>
#include <QApplication>
#include <QByteArray>
#include <QImageWriter>
#include <QMessageBox>
#include <QMetaType>
#include <QStyle>
#include <QSystemTrayIcon>
#include <QTemporaryFile>
#include <QVariant>
#ifdef USE_DBUS
#include <QDBusMetaType>
#include <QtDBus>
#include <stdint.h>
#endif
#ifdef Q_OS_MACOS
#include <qt/macnotificationhandler.h>
#endif
#ifdef USE_DBUS
// https://wiki.ubuntu.com/NotificationDevelopmentGuidelines recommends at least 128
const int FREEDESKTOP_NOTIFICATION_ICON_SIZE = 128;
#endif
Notificator::Notificator(const QString &_programName, QSystemTrayIcon *_trayIcon, QWidget *_parent) :
QObject(_parent),
parent(_parent),
programName(_programName),
trayIcon(_trayIcon)
{
if(_trayIcon && _trayIcon->supportsMessages())
{
mode = QSystemTray;
}
#ifdef USE_DBUS
interface = new QDBusInterface("org.freedesktop.Notifications",
"/org/freedesktop/Notifications", "org.freedesktop.Notifications");
if(interface->isValid())
{
mode = Freedesktop;
}
#endif
#ifdef Q_OS_MACOS
// check if users OS has support for NSUserNotification
if( MacNotificationHandler::instance()->hasUserNotificationCenterSupport()) {
mode = UserNotificationCenter;
}
#endif
}
Notificator::~Notificator()
{
#ifdef USE_DBUS
delete interface;
#endif
}
#ifdef USE_DBUS
// Loosely based on https://www.qtcentre.org/archive/index.php/t-25879.html
class FreedesktopImage
{
public:
FreedesktopImage() = default;
explicit FreedesktopImage(const QImage &img);
// Image to variant that can be marshalled over DBus
static QVariant toVariant(const QImage &img);
private:
int width, height, stride;
bool hasAlpha;
int channels;
int bitsPerSample;
QByteArray image;
friend QDBusArgument &operator<<(QDBusArgument &a, const FreedesktopImage &i);
friend const QDBusArgument &operator>>(const QDBusArgument &a, FreedesktopImage &i);
};
Q_DECLARE_METATYPE(FreedesktopImage);
// Image configuration settings
const int CHANNELS = 4;
const int BYTES_PER_PIXEL = 4;
const int BITS_PER_SAMPLE = 8;
FreedesktopImage::FreedesktopImage(const QImage &img):
width(img.width()),
height(img.height()),
stride(img.width() * BYTES_PER_PIXEL),
hasAlpha(true),
channels(CHANNELS),
bitsPerSample(BITS_PER_SAMPLE)
{
// Convert 00xAARRGGBB to RGBA bytewise (endian-independent) format
QImage tmp = img.convertToFormat(QImage::Format_ARGB32);
const uint32_t *data = reinterpret_cast<const uint32_t*>(tmp.bits());
unsigned int num_pixels = width * height;
image.resize(num_pixels * BYTES_PER_PIXEL);
for(unsigned int ptr = 0; ptr < num_pixels; ++ptr)
{
image[ptr*BYTES_PER_PIXEL+0] = data[ptr] >> 16; // R
image[ptr*BYTES_PER_PIXEL+1] = data[ptr] >> 8; // G
image[ptr*BYTES_PER_PIXEL+2] = data[ptr]; // B
image[ptr*BYTES_PER_PIXEL+3] = data[ptr] >> 24; // A
}
}
QDBusArgument &operator<<(QDBusArgument &a, const FreedesktopImage &i)
{
a.beginStructure();
a << i.width << i.height << i.stride << i.hasAlpha << i.bitsPerSample << i.channels << i.image;
a.endStructure();
return a;
}
const QDBusArgument &operator>>(const QDBusArgument &a, FreedesktopImage &i)
{
a.beginStructure();
a >> i.width >> i.height >> i.stride >> i.hasAlpha >> i.bitsPerSample >> i.channels >> i.image;
a.endStructure();
return a;
}
QVariant FreedesktopImage::toVariant(const QImage &img)
{
FreedesktopImage fimg(img);
return QVariant(qDBusRegisterMetaType<FreedesktopImage>(), &fimg);
}
void Notificator::notifyDBus(Class cls, const QString &title, const QString &text, const QIcon &icon, int millisTimeout)
{
// https://developer.gnome.org/notification-spec/
// Arguments for DBus "Notify" call:
QList<QVariant> args;
// Program Name:
args.append(programName);
// Replaces ID; A value of 0 means that this notification won't replace any existing notifications:
args.append(0U);
// Application Icon, empty string
args.append(QString());
// Summary
args.append(title);
// Body
args.append(text);
// Actions (none, actions are deprecated)
QStringList actions;
args.append(actions);
// Hints
QVariantMap hints;
// If no icon specified, set icon based on class
QIcon tmpicon;
if(icon.isNull())
{
QStyle::StandardPixmap sicon = QStyle::SP_MessageBoxQuestion;
switch(cls)
{
case Information: sicon = QStyle::SP_MessageBoxInformation; break;
case Warning: sicon = QStyle::SP_MessageBoxWarning; break;
case Critical: sicon = QStyle::SP_MessageBoxCritical; break;
default: break;
}
tmpicon = QApplication::style()->standardIcon(sicon);
}
else
{
tmpicon = icon;
}
hints["icon_data"] = FreedesktopImage::toVariant(tmpicon.pixmap(FREEDESKTOP_NOTIFICATION_ICON_SIZE).toImage());
args.append(hints);
// Timeout (in msec)
args.append(millisTimeout);
// "Fire and forget"
interface->callWithArgumentList(QDBus::NoBlock, "Notify", args);
}
#endif
void Notificator::notifySystray(Class cls, const QString &title, const QString &text, int millisTimeout)
{
QSystemTrayIcon::MessageIcon sicon = QSystemTrayIcon::NoIcon;
switch(cls) // Set icon based on class
{
case Information: sicon = QSystemTrayIcon::Information; break;
case Warning: sicon = QSystemTrayIcon::Warning; break;
case Critical: sicon = QSystemTrayIcon::Critical; break;
}
trayIcon->showMessage(title, text, sicon, millisTimeout);
}
#ifdef Q_OS_MACOS
void Notificator::notifyMacUserNotificationCenter(const QString &title, const QString &text)
{
// icon is not supported by the user notification center yet. OSX will use the app icon.
MacNotificationHandler::instance()->showNotification(title, text);
}
#endif
void Notificator::notify(Class cls, const QString &title, const QString &text, const QIcon &icon, int millisTimeout)
{
switch(mode)
{
#ifdef USE_DBUS
case Freedesktop:
notifyDBus(cls, title, text, icon, millisTimeout);
break;
#endif
case QSystemTray:
notifySystray(cls, title, text, millisTimeout);
break;
#ifdef Q_OS_MACOS
case UserNotificationCenter:
notifyMacUserNotificationCenter(title, text);
break;
#endif
default:
if(cls == Critical)
{
// Fall back to old fashioned pop-up dialog if critical and no other notification available
QMessageBox::critical(parent, title, text, QMessageBox::Ok, QMessageBox::Ok);
}
break;
}
}
|
