source: trunk/src/gui/util/qsystemtrayicon_x11.cpp@ 846

Last change on this file since 846 was 846, checked in by Dmitry A. Kuminov, 14 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.
File size: 13.1 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the QtGui module of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include "private/qt_x11_p.h"
43#include "qlabel.h"
44#include "qx11info_x11.h"
45#include "qpainter.h"
46#include "qpixmap.h"
47#include "qbitmap.h"
48#include "qevent.h"
49#include "qapplication.h"
50#include "qlist.h"
51#include "qmenu.h"
52#include "qtimer.h"
53#include "qsystemtrayicon_p.h"
54#include "qpaintengine.h"
55
56#ifndef QT_NO_SYSTEMTRAYICON
57QT_BEGIN_NAMESPACE
58
59Window QSystemTrayIconSys::sysTrayWindow = XNone;
60QList<QSystemTrayIconSys *> QSystemTrayIconSys::trayIcons;
61QCoreApplication::EventFilter QSystemTrayIconSys::oldEventFilter = 0;
62Atom QSystemTrayIconSys::sysTraySelection = XNone;
63XVisualInfo QSystemTrayIconSys::sysTrayVisual = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
64
65// Locate the system tray
66Window QSystemTrayIconSys::locateSystemTray()
67{
68 Display *display = QX11Info::display();
69 if (sysTraySelection == XNone) {
70 int screen = QX11Info::appScreen();
71 QString net_sys_tray = QString::fromLatin1("_NET_SYSTEM_TRAY_S%1").arg(screen);
72 sysTraySelection = XInternAtom(display, net_sys_tray.toLatin1(), False);
73 }
74
75 return XGetSelectionOwner(QX11Info::display(), sysTraySelection);
76}
77
78XVisualInfo* QSystemTrayIconSys::getSysTrayVisualInfo()
79{
80 Display *display = QX11Info::display();
81
82 if (!sysTrayVisual.visual) {
83 Window win = locateSystemTray();
84 if (win != XNone) {
85 Atom actual_type;
86 int actual_format;
87 ulong nitems, bytes_remaining;
88 uchar *data = 0;
89 int result = XGetWindowProperty(display, win, ATOM(_NET_SYSTEM_TRAY_VISUAL), 0, 1,
90 False, XA_VISUALID, &actual_type,
91 &actual_format, &nitems, &bytes_remaining, &data);
92 VisualID vid = 0;
93 if (result == Success && data && actual_type == XA_VISUALID && actual_format == 32 &&
94 nitems == 1 && bytes_remaining == 0)
95 vid = *(VisualID*)data;
96 if (data)
97 XFree(data);
98 if (vid == 0)
99 return 0;
100
101 uint mask = VisualIDMask;
102 XVisualInfo *vi, rvi;
103 int count;
104 rvi.visualid = vid;
105 vi = XGetVisualInfo(display, mask, &rvi, &count);
106 if (vi) {
107 sysTrayVisual = vi[0];
108 XFree((char*)vi);
109 }
110 if (sysTrayVisual.depth != 32)
111 memset(&sysTrayVisual, 0, sizeof(sysTrayVisual));
112 }
113 }
114
115 return sysTrayVisual.visual ? &sysTrayVisual : 0;
116}
117
118bool QSystemTrayIconSys::sysTrayTracker(void *message, long *result)
119{
120 bool retval = false;
121 if (QSystemTrayIconSys::oldEventFilter)
122 retval = QSystemTrayIconSys::oldEventFilter(message, result);
123
124 if (trayIcons.isEmpty())
125 return retval;
126
127 Display *display = QX11Info::display();
128 XEvent *ev = (XEvent *)message;
129 if (ev->type == DestroyNotify && ev->xany.window == sysTrayWindow) {
130 sysTrayWindow = locateSystemTray();
131 memset(&sysTrayVisual, 0, sizeof(sysTrayVisual));
132 for (int i = 0; i < trayIcons.count(); i++) {
133 if (sysTrayWindow == XNone) {
134 QBalloonTip::hideBalloon();
135 trayIcons[i]->hide(); // still no luck
136 trayIcons[i]->destroy();
137 trayIcons[i]->create();
138 } else
139 trayIcons[i]->addToTray(); // add it to the new tray
140 }
141 retval = true;
142 } else if (ev->type == ClientMessage && sysTrayWindow == XNone) {
143 static Atom manager_atom = XInternAtom(display, "MANAGER", False);
144 XClientMessageEvent *cm = (XClientMessageEvent *)message;
145 if ((cm->message_type == manager_atom) && ((Atom)cm->data.l[1] == sysTraySelection)) {
146 sysTrayWindow = cm->data.l[2];
147 memset(&sysTrayVisual, 0, sizeof(sysTrayVisual));
148 XSelectInput(display, sysTrayWindow, StructureNotifyMask);
149 for (int i = 0; i < trayIcons.count(); i++) {
150 trayIcons[i]->addToTray();
151 }
152 retval = true;
153 }
154 } else if (ev->type == PropertyNotify && ev->xproperty.atom == ATOM(_NET_SYSTEM_TRAY_VISUAL) &&
155 ev->xproperty.window == sysTrayWindow) {
156 memset(&sysTrayVisual, 0, sizeof(sysTrayVisual));
157 for (int i = 0; i < trayIcons.count(); i++) {
158 trayIcons[i]->addToTray();
159 }
160 }
161
162 return retval;
163}
164
165QSystemTrayIconSys::QSystemTrayIconSys(QSystemTrayIcon *q)
166 : QWidget(0, Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint),
167 q(q), colormap(0)
168{
169 setAttribute(Qt::WA_AlwaysShowToolTips);
170 setAttribute(Qt::WA_QuitOnClose, false);
171 setAttribute(Qt::WA_NoSystemBackground, true);
172 setAttribute(Qt::WA_PaintOnScreen);
173
174 static bool eventFilterAdded = false;
175 Display *display = QX11Info::display();
176 if (!eventFilterAdded) {
177 oldEventFilter = qApp->setEventFilter(sysTrayTracker);
178 eventFilterAdded = true;
179 Window root = QX11Info::appRootWindow();
180 XWindowAttributes attr;
181 XGetWindowAttributes(display, root, &attr);
182 if ((attr.your_event_mask & StructureNotifyMask) != StructureNotifyMask) {
183 (void) QApplication::desktop(); // lame trick to ensure our event mask is not overridden
184 XSelectInput(display, root, attr.your_event_mask | StructureNotifyMask); // for MANAGER selection
185 }
186 }
187 if (trayIcons.isEmpty()) {
188 sysTrayWindow = locateSystemTray();
189 if (sysTrayWindow != XNone)
190 XSelectInput(display, sysTrayWindow, StructureNotifyMask); // track tray events
191 }
192 trayIcons.append(this);
193 setMouseTracking(true);
194#ifndef QT_NO_TOOLTIP
195 setToolTip(q->toolTip());
196#endif
197 if (sysTrayWindow != XNone)
198 addToTray();
199}
200
201QSystemTrayIconSys::~QSystemTrayIconSys()
202{
203 trayIcons.removeAt(trayIcons.indexOf(this));
204 Display *display = QX11Info::display();
205 if (trayIcons.isEmpty()) {
206 if (sysTrayWindow == XNone)
207 return;
208 if (display)
209 XSelectInput(display, sysTrayWindow, 0); // stop tracking the tray
210 sysTrayWindow = XNone;
211 }
212 if (colormap)
213 XFreeColormap(display, colormap);
214}
215
216void QSystemTrayIconSys::addToTray()
217{
218 Q_ASSERT(sysTrayWindow != XNone);
219 Display *display = QX11Info::display();
220
221 XVisualInfo *vi = getSysTrayVisualInfo();
222 if (vi && vi->visual) {
223 Window root = RootWindow(display, vi->screen);
224 Window p = root;
225 if (QWidget *pw = parentWidget())
226 p = pw->effectiveWinId();
227 colormap = XCreateColormap(display, root, vi->visual, AllocNone);
228 XSetWindowAttributes wsa;
229 wsa.background_pixmap = 0;
230 wsa.colormap = colormap;
231 wsa.background_pixel = 0;
232 wsa.border_pixel = 0;
233 Window wid = XCreateWindow(display, p, -1, -1, 1, 1,
234 0, vi->depth, InputOutput, vi->visual,
235 CWBackPixmap|CWBackPixel|CWBorderPixel|CWColormap, &wsa);
236 create(wid);
237 } else {
238 XSetWindowBackgroundPixmap(display, winId(), ParentRelative);
239 }
240
241 // GNOME, NET WM Specification
242 static Atom netwm_tray_atom = XInternAtom(display, "_NET_SYSTEM_TRAY_OPCODE", False);
243 long l[5] = { CurrentTime, SYSTEM_TRAY_REQUEST_DOCK, winId(), 0, 0 };
244 XEvent ev;
245 memset(&ev, 0, sizeof(ev));
246 ev.xclient.type = ClientMessage;
247 ev.xclient.window = sysTrayWindow;
248 ev.xclient.message_type = netwm_tray_atom;
249 ev.xclient.format = 32;
250 memcpy((char *)&ev.xclient.data, (const char *) l, sizeof(l));
251 XSendEvent(display, sysTrayWindow, False, 0, &ev);
252 setMinimumSize(22, 22); // required at least on GNOME
253}
254
255void QSystemTrayIconSys::updateIcon()
256{
257 update();
258}
259
260void QSystemTrayIconSys::resizeEvent(QResizeEvent *re)
261{
262 QWidget::resizeEvent(re);
263 updateIcon();
264}
265
266void QSystemTrayIconSys::paintEvent(QPaintEvent*)
267{
268 QPainter p(this);
269 if (!getSysTrayVisualInfo()) {
270 const QRegion oldSystemClip = p.paintEngine()->systemClip();
271 const QRect clearedRect = oldSystemClip.boundingRect();
272 XClearArea(QX11Info::display(), winId(), clearedRect.x(), clearedRect.y(),
273 clearedRect.width(), clearedRect.height(), False);
274 QPaintEngine *pe = p.paintEngine();
275 pe->setSystemClip(clearedRect);
276 q->icon().paint(&p, rect());
277 pe->setSystemClip(oldSystemClip);
278 } else {
279 p.setCompositionMode(QPainter::CompositionMode_Source);
280 p.fillRect(rect(), Qt::transparent);
281 p.setCompositionMode(QPainter::CompositionMode_SourceOver);
282 q->icon().paint(&p, rect());
283 }
284}
285
286void QSystemTrayIconSys::mousePressEvent(QMouseEvent *ev)
287{
288 QPoint globalPos = ev->globalPos();
289 if (ev->button() == Qt::RightButton && q->contextMenu())
290 q->contextMenu()->popup(globalPos);
291
292 if (QBalloonTip::isBalloonVisible()) {
293 emit q->messageClicked();
294 QBalloonTip::hideBalloon();
295 }
296
297 if (ev->button() == Qt::LeftButton)
298 emit q->activated(QSystemTrayIcon::Trigger);
299 else if (ev->button() == Qt::RightButton)
300 emit q->activated(QSystemTrayIcon::Context);
301 else if (ev->button() == Qt::MidButton)
302 emit q->activated(QSystemTrayIcon::MiddleClick);
303}
304
305void QSystemTrayIconSys::mouseDoubleClickEvent(QMouseEvent *ev)
306{
307 if (ev->button() == Qt::LeftButton)
308 emit q->activated(QSystemTrayIcon::DoubleClick);
309}
310
311#ifndef QT_NO_WHEELEVENT
312void QSystemTrayIconSys::wheelEvent(QWheelEvent *e)
313{
314 QApplication::sendEvent(q, e);
315}
316#endif
317
318bool QSystemTrayIconSys::event(QEvent *e)
319{
320 if (e->type() == QEvent::ToolTip) {
321 return QApplication::sendEvent(q, e);
322 }
323 return QWidget::event(e);
324}
325
326bool QSystemTrayIconSys::x11Event(XEvent *event)
327{
328 if (event->type == ReparentNotify)
329 show();
330 return QWidget::x11Event(event);
331}
332
333////////////////////////////////////////////////////////////////////////////
334void QSystemTrayIconPrivate::install_sys()
335{
336 Q_Q(QSystemTrayIcon);
337 if (!sys)
338 sys = new QSystemTrayIconSys(q);
339}
340
341QRect QSystemTrayIconPrivate::geometry_sys() const
342{
343 if (!sys)
344 return QRect();
345 return QRect(sys->mapToGlobal(QPoint(0, 0)), sys->size());
346}
347
348void QSystemTrayIconPrivate::remove_sys()
349{
350 if (!sys)
351 return;
352 QBalloonTip::hideBalloon();
353 sys->hide(); // this should do the trick, but...
354 delete sys; // wm may resize system tray only for DestroyEvents
355 sys = 0;
356}
357
358void QSystemTrayIconPrivate::updateIcon_sys()
359{
360 if (!sys)
361 return;
362 sys->updateIcon();
363}
364
365void QSystemTrayIconPrivate::updateMenu_sys()
366{
367
368}
369
370void QSystemTrayIconPrivate::updateToolTip_sys()
371{
372 if (!sys)
373 return;
374#ifndef QT_NO_TOOLTIP
375 sys->setToolTip(toolTip);
376#endif
377}
378
379bool QSystemTrayIconPrivate::isSystemTrayAvailable_sys()
380{
381 return QSystemTrayIconSys::locateSystemTray() != XNone;
382}
383
384bool QSystemTrayIconPrivate::supportsMessages_sys()
385{
386 return true;
387}
388
389void QSystemTrayIconPrivate::showMessage_sys(const QString &message, const QString &title,
390 QSystemTrayIcon::MessageIcon icon, int msecs)
391{
392 if (!sys)
393 return;
394 QPoint g = sys->mapToGlobal(QPoint(0, 0));
395 QBalloonTip::showBalloon(icon, message, title, sys->q,
396 QPoint(g.x() + sys->width()/2, g.y() + sys->height()/2),
397 msecs);
398}
399
400QT_END_NAMESPACE
401#endif //QT_NO_SYSTEMTRAYICON
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