qsystemtrayicon_x11.cpp

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38 ****************************************************************************/ -

39 -

40 #include "qlabel.h" -

41 #include "qpainter.h" -

42 #include "qpixmap.h" -

43 #include "qbitmap.h" -

44 #include "qevent.h" -

45 #include "qapplication.h" -

46 #include "qlist.h" -

47 #include "qmenu.h" -

48 #include "qtimer.h" -

49 #include "qsystemtrayicon_p.h" -

50 #include "qpaintengine.h" -

51 #include <qwindow.h> -

52 #include <qguiapplication.h> -

53 #include <qscreen.h> -

54 #include <qbackingstore.h> -

55 #include <qpa/qplatformnativeinterface.h> -

56 #include <qpa/qplatformsystemtrayicon.h> -

57 #include <qpa/qplatformtheme.h> -

58 #include <private/qguiapplication_p.h> -

59 #include <qdebug.h> -

60 -

61 #include <QtPlatformHeaders/qxcbwindowfunctions.h> -

62 #include <QtPlatformHeaders/qxcbintegrationfunctions.h> -

63 #ifndef QT_NO_SYSTEMTRAYICON -

64 QT_BEGIN_NAMESPACE -

65 -

66 static inline unsigned long locateSystemTray() -

67 { -

68 return (unsigned long)QGuiApplication::platformNativeInterface()->nativeResourceForScreen(QByteArrayLiteral("traywindow"), QGuiApplication::primaryScreen()); -

69 } -

70 -

71 // System tray widget. Could be replaced by a QWindow with -

72 // a backing store if it did not need tooltip handling. -

73 class QSystemTrayIconSys : public QWidget -

74 { -

75 Q_OBJECT -

76 public: -

77 explicit QSystemTrayIconSys(QSystemTrayIcon *q); -

78 -

79 inline void updateIcon() { update(); } -

80 inline QSystemTrayIcon *systemTrayIcon() const { return q; } -

81 -

82 QRect globalGeometry() const; -

83 -

84 protected: -

85 virtual void mousePressEvent(QMouseEvent *ev) Q_DECL_OVERRIDE; -

86 virtual void mouseDoubleClickEvent(QMouseEvent *ev) Q_DECL_OVERRIDE; -

87 virtual bool event(QEvent *) Q_DECL_OVERRIDE; -

88 virtual void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE; -

89 virtual void resizeEvent(QResizeEvent *) Q_DECL_OVERRIDE; -

90 virtual void moveEvent(QMoveEvent *) Q_DECL_OVERRIDE; -

91 -

92 private slots: -

93 void systemTrayWindowChanged(QScreen *screen); -

94 -

95 private: -

96 bool addToTray(); -

97 -

98 QSystemTrayIcon *q; -

99 QPixmap background; -

100 }; -

101 -

102 QSystemTrayIconSys::QSystemTrayIconSys(QSystemTrayIcon *qIn) -

103 : QWidget(0, Qt::Window | Qt::FramelessWindowHint | Qt::BypassWindowManagerHint) -

104 , q(qIn) -

105 { -

106 setObjectName(QStringLiteral("QSystemTrayIconSys")); -

107 setToolTip(q->toolTip()); -

108 setAttribute(Qt::WA_AlwaysShowToolTips, true); -

109 setAttribute(Qt::WA_QuitOnClose, false); -

110 const QSize size(22, 22); // Gnome, standard size -

111 setGeometry(QRect(QPoint(0, 0), size)); -

112 setMinimumSize(size); -

113 -

114 // We need two different behaviors depending on whether the X11 visual for the system tray -

115 // (a) exists and (b) supports an alpha channel, i.e. is 32 bits. -

116 // If we have a visual that has an alpha channel, we can paint this widget with a transparent -

117 // background and it will work. -

118 // However, if there's no alpha channel visual, in order for transparent tray icons to work, -

119 // we do not have a transparent background on the widget, but set the BackPixmap property of our -

120 // window to ParentRelative (so that it inherits the background of its X11 parent window), call -

121 // xcb_clear_region before painting (so that the inherited background is visible) and then grab -

122 // the just-drawn background from the X11 server. -

123 bool hasAlphaChannel = QXcbIntegrationFunctions::xEmbedSystemTrayVisualHasAlphaChannel(); -

124 setAttribute(Qt::WA_TranslucentBackground, hasAlphaChannel); -

125 if (!hasAlphaChannel) { -

126 createWinId(); -

127 QXcbWindowFunctions::setParentRelativeBackPixmap(windowHandle()); -

128 -

129 // XXX: This is actually required, but breaks things ("QWidget::paintEngine: Should no -

130 // longer be called"). Why is this needed? When the widget is drawn, we use tricks to grab -

131 // the tray icon's background from the server. If the tray icon isn't visible (because -

132 // another window is on top of it), the trick fails and instead uses the content of that -

133 // other window as the background. -

134 // setAttribute(Qt::WA_PaintOnScreen); -

135 } -

136 -

137 addToTray(); -

138 } -

139 -

140 bool QSystemTrayIconSys::addToTray() -

141 { -

142 if (!locateSystemTray()) -

143 return false; -

144 -

145 createWinId(); -

146 setMouseTracking(true); -

147 -

148 if (!QXcbWindowFunctions::requestSystemTrayWindowDock(windowHandle())) -

149 return false; -

150 -

151 if (!background.isNull()) -

152 background = QPixmap(); -

153 show(); -

154 return true; -

155 } -

156 -

157 void QSystemTrayIconSys::systemTrayWindowChanged(QScreen *) -

158 { -

159 if (locateSystemTray()) { -

160 addToTray(); -

161 } else { -

162 QBalloonTip::hideBalloon(); -

163 hide(); // still no luck -

164 destroy(); -

165 } -

166 } -

167 -

168 QRect QSystemTrayIconSys::globalGeometry() const -

169 { -

170 return QXcbWindowFunctions::systemTrayWindowGlobalGeometry(windowHandle()); -

171 } -

172 -

173 void QSystemTrayIconSys::mousePressEvent(QMouseEvent *ev) -

174 { -

175 QPoint globalPos = ev->globalPos(); -

176 #ifndef QT_NO_CONTEXTMENU -

177

if (ev->button() == Qt::RightButton && q->contextMenu())

ev->button() =...t::RightButton	Description
TRUE	never evaluated
FALSE	never evaluated

q->contextMenu()	Description
TRUE	never evaluated
FALSE	never evaluated

178

q->contextMenu()->popup(globalPos);

never executed: q->contextMenu()->popup(globalPos);

179 #else -

180 Q_UNUSED(globalPos) -

181 #endif // QT_NO_CONTEXTMENU -

182 -

183

if (QBalloonTip::isBalloonVisible()) {

QBalloonTip::i...lloonVisible()	Description
TRUE	never evaluated
FALSE	never evaluated

184 emit q->messageClicked(); -

185 QBalloonTip::hideBalloon(); -

186

}

never executed: end of block

187 -

188

if (ev->button() == Qt::LeftButton)

ev->button() == Qt::LeftButton	Description
TRUE	never evaluated
FALSE	never evaluated

189

emit q->activated(QSystemTrayIcon::Trigger);

never executed: q->activated(QSystemTrayIcon::Trigger);

190

else if (ev->button() == Qt::RightButton)

ev->button() =...t::RightButton	Description
TRUE	never evaluated
FALSE	never evaluated

191

emit q->activated(QSystemTrayIcon::Context);

never executed: q->activated(QSystemTrayIcon::Context);

192

else if (ev->button() == Qt::MidButton)

ev->button() == Qt::MidButton	Description
TRUE	never evaluated
FALSE	never evaluated

193

emit q->activated(QSystemTrayIcon::MiddleClick);

never executed: q->activated(QSystemTrayIcon::MiddleClick);

194

}

never executed: end of block

195 -

196 void QSystemTrayIconSys::mouseDoubleClickEvent(QMouseEvent *ev) -

197 { -

198 if (ev->button() == Qt::LeftButton) -

199 emit q->activated(QSystemTrayIcon::DoubleClick); -

200 } -

201 -

202 bool QSystemTrayIconSys::event(QEvent *e) -

203 { -

204 switch (e->type()) { -

205 case QEvent::ToolTip: -

206 QApplication::sendEvent(q, e); -

207 break; -

208 #ifndef QT_NO_WHEELEVENT -

209 case QEvent::Wheel: -

210 return QApplication::sendEvent(q, e); -

211 #endif -

212 default: -

213 break; -

214 } -

215 return QWidget::event(e); -

216 } -

217 -

218 void QSystemTrayIconSys::paintEvent(QPaintEvent *) -

219 { -

220 const QRect rect(QPoint(0, 0), geometry().size()); -

221 QPainter painter(this); -

222 -

223 // If we have Qt::WA_TranslucentBackground set, during widget creation -

224 // we detected the systray visual supported an alpha channel -

225 if (testAttribute(Qt::WA_TranslucentBackground)) { -

226 painter.setCompositionMode(QPainter::CompositionMode_Source); -

227 painter.fillRect(rect, Qt::transparent); -

228 } else { -

229 // clearRegion() was called on XEMBED_EMBEDDED_NOTIFY, so we hope that got done by now. -

230 // Grab the tray background pixmap, before rendering the icon for the first time. -

231 if (background.isNull()) { -

232 background = QGuiApplication::primaryScreen()->grabWindow(winId(), -

233 0, 0, rect.size().width(), rect.size().height()); -

234 } -

235 // Then paint over the icon area with the background before compositing the icon on top. -

236 painter.drawPixmap(QPoint(0, 0), background); -

237 } -

238 painter.setCompositionMode(QPainter::CompositionMode_SourceOver); -

239 q->icon().paint(&painter, rect); -

240 } -

241 -

242 void QSystemTrayIconSys::moveEvent(QMoveEvent *event) -

243 { -

244 QWidget::moveEvent(event); -

245 if (QBalloonTip::isBalloonVisible()) -

246 QBalloonTip::updateBalloonPosition(globalGeometry().center()); -

247 } -

248 -

249 void QSystemTrayIconSys::resizeEvent(QResizeEvent *event) -

250 { -

251 update(); -

252 QWidget::resizeEvent(event); -

253 if (QBalloonTip::isBalloonVisible()) -

254 QBalloonTip::updateBalloonPosition(globalGeometry().center()); -

255 } -

256 //////////////////////////////////////////////////////////////////////////// -

257 -

258 QSystemTrayIconPrivate::QSystemTrayIconPrivate() -

259 : sys(0), -

260 qpa_sys(QGuiApplicationPrivate::platformTheme()->createPlatformSystemTrayIcon()), -

261 visible(false) -

262 { -

263 } -

264 -

265 QSystemTrayIconPrivate::~QSystemTrayIconPrivate() -

266 { -

267 delete qpa_sys; -

268 } -

269 -

270 void QSystemTrayIconPrivate::install_sys() -

271 { -

272 if (qpa_sys) { -

273 install_sys_qpa(); -

274 return; -

275 } -

276 Q_Q(QSystemTrayIcon); -

277 if (!sys && locateSystemTray()) { -

278 sys = new QSystemTrayIconSys(q); -

279 QObject::connect(QGuiApplication::platformNativeInterface(), SIGNAL(systemTrayWindowChanged(QScreen*)), -

280 sys, SLOT(systemTrayWindowChanged(QScreen*))); -

281 } -

282 } -

283 -

284 QRect QSystemTrayIconPrivate::geometry_sys() const -

285 { -

286 if (qpa_sys) -

287 return geometry_sys_qpa(); -

288 if (!sys) -

289 return QRect(); -

290 return sys->globalGeometry(); -

291 } -

292 -

293 void QSystemTrayIconPrivate::remove_sys() -

294 { -

295 if (qpa_sys) { -

296 remove_sys_qpa(); -

297 return; -

298 } -

299 if (!sys) -

300 return; -

301 QBalloonTip::hideBalloon(); -

302 sys->hide(); // this should do the trick, but... -

303 delete sys; // wm may resize system tray only for DestroyEvents -

304 sys = 0; -

305 } -

306 -

307 void QSystemTrayIconPrivate::updateIcon_sys() -

308 { -

309 if (qpa_sys) { -

310 updateIcon_sys_qpa(); -

311 return; -

312 } -

313 if (sys) -

314 sys->updateIcon(); -

315 } -

316 -

317 void QSystemTrayIconPrivate::updateMenu_sys() -

318 { -

319 if (qpa_sys) -

320 updateMenu_sys_qpa(); -

321 } -

322 -

323 void QSystemTrayIconPrivate::updateToolTip_sys() -

324 { -

325 if (qpa_sys) { -

326 updateToolTip_sys_qpa(); -

327 return; -

328 } -

329 if (!sys) -

330 return; -

331 #ifndef QT_NO_TOOLTIP -

332 sys->setToolTip(toolTip); -

333 #endif -

334 } -

335 -

336 bool QSystemTrayIconPrivate::isSystemTrayAvailable_sys() -

337 { -

338 QScopedPointer<QPlatformSystemTrayIcon> sys(QGuiApplicationPrivate::platformTheme()->createPlatformSystemTrayIcon()); -

339 if (sys && sys->isSystemTrayAvailable()) -

340 return true; -

341 -

342 // no QPlatformSystemTrayIcon so fall back to default xcb platform behavior -

343 const QString platform = QGuiApplication::platformName(); -

344 if (platform.compare(QLatin1String("xcb"), Qt::CaseInsensitive) == 0) -

345 return locateSystemTray(); -

346 return false; -

347 } -

348 -

349 bool QSystemTrayIconPrivate::supportsMessages_sys() -

350 { -

351 QScopedPointer<QPlatformSystemTrayIcon> sys(QGuiApplicationPrivate::platformTheme()->createPlatformSystemTrayIcon()); -

352 if (sys) -

353 return sys->supportsMessages(); -

354 -

355 // no QPlatformSystemTrayIcon so fall back to default xcb platform behavior -

356 return true; -

357 } -

358 -

359 void QSystemTrayIconPrivate::showMessage_sys(const QString &title, const QString &message, -

360 QSystemTrayIcon::MessageIcon icon, int msecs) -

361 { -

362 if (qpa_sys) { -

363 showMessage_sys_qpa(title, message, icon, msecs); -

364 return; -

365 } -

366 if (!sys) -

367 return; -

368 QBalloonTip::showBalloon(icon, title, message, sys->systemTrayIcon(), -

369 sys->globalGeometry().center(), -

370 msecs); -

371 } -

372 -

373 QT_END_NAMESPACE -

374 -

375 #include "qsystemtrayicon_x11.moc" -

376 -

377 #endif //QT_NO_SYSTEMTRAYICON -

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