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Implement QSystemTrayIcon for X11.

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Reimplement using a QWidget. Use X

Change-Id: I7f8326598fb7210d59bc1d682cdada4526d5b6dd
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
This commit is contained in:
Friedemann Kleint 2012-03-09 11:38:55 +01:00 committed by Qt by Nokia
parent 1fe7e557d7
commit 3b69fa6bc7
5 changed files with 162 additions and 278 deletions
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1
src/plugins/platforms/xcb/qxcbwindow.cpp
View File

@ -1298,6 +1298,7 @@ void QXcbWindow::handleClientMessageEvent(const xcb_client_message_event_t *even
connection()->drag()->handleLeave(window(), event);
} else if (event->type == atom(QXcbAtom::XdndDrop)) {
connection()->drag()->handleDrop(window(), event);
} else if (event->type == atom(QXcbAtom::_XEMBED)) { // QSystemTrayIcon
} else {
qWarning() << "QXcbWindow: Unhandled client message:" << connection()->atomName(event->type);
}

56
src/widgets/util/qsystemtrayicon_p.h
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@ -122,62 +122,6 @@ private:
int timerId;
};
#if defined(Q_WS_X11)
QT_BEGIN_INCLUDE_NAMESPACE
#include <QtCore/qcoreapplication.h>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>
QT_END_INCLUDE_NAMESPACE
class QSystemTrayIconSys : public QWidget
{
friend class QSystemTrayIconPrivate;
public:
QSystemTrayIconSys(QSystemTrayIcon *q);
~QSystemTrayIconSys();
enum {
SYSTEM_TRAY_REQUEST_DOCK = 0,
SYSTEM_TRAY_BEGIN_MESSAGE = 1,
SYSTEM_TRAY_CANCEL_MESSAGE =2
};
void addToTray();
void updateIcon();
XVisualInfo* getSysTrayVisualInfo();
// QObject::event is public but QWidget's ::event() re-implementation
// is protected ;(
inline bool deliverToolTipEvent(QEvent *e)
{ return QWidget::event(e); }
static Window sysTrayWindow;
static QList<QSystemTrayIconSys *> trayIcons;
static QCoreApplication::EventFilter oldEventFilter;
static bool sysTrayTracker(void *message, long *result);
static Window locateSystemTray();
static Atom sysTraySelection;
static XVisualInfo sysTrayVisual;
protected:
void paintEvent(QPaintEvent *pe);
void resizeEvent(QResizeEvent *re);
bool x11Event(XEvent *event);
void mousePressEvent(QMouseEvent *event);
void mouseDoubleClickEvent(QMouseEvent *event);
#ifndef QT_NO_WHEELEVENT
void wheelEvent(QWheelEvent *event);
#endif
bool event(QEvent *e);
private:
QPixmap background;
QSystemTrayIcon *q;
Colormap colormap;
};
#endif // Q_WS_X11
QT_END_NAMESPACE
#endif // QT_NO_SYSTEMTRAYICON

373
src/widgets/util/qsystemtrayicon_x11.cpp
View File

@ -39,9 +39,7 @@
**
****************************************************************************/
#include "private/qt_x11_p.h"
#include "qlabel.h"
#include "qx11info_x11.h"
#include "qpainter.h"
#include "qpixmap.h"
#include "qbitmap.h"
@ -52,236 +50,165 @@
#include "qtimer.h"
#include "qsystemtrayicon_p.h"
#include "qpaintengine.h"
#include <qwindow.h>
#include <qguiapplication.h>
#include <qscreen.h>
#include <qbackingstore.h>
#include <qplatformnativeinterface_qpa.h>
#include <qdebug.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xos.h>
#include <X11/Xatom.h>
#ifndef QT_NO_SYSTEMTRAYICON
QT_BEGIN_NAMESPACE
Window QSystemTrayIconSys::sysTrayWindow = XNone;
QList<QSystemTrayIconSys *> QSystemTrayIconSys::trayIcons;
QCoreApplication::EventFilter QSystemTrayIconSys::oldEventFilter = 0;
Atom QSystemTrayIconSys::sysTraySelection = XNone;
XVisualInfo QSystemTrayIconSys::sysTrayVisual = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
enum {
SYSTEM_TRAY_REQUEST_DOCK = 0,
SYSTEM_TRAY_BEGIN_MESSAGE = 1,
SYSTEM_TRAY_CANCEL_MESSAGE =2
};
// Locate the system tray
Window QSystemTrayIconSys::locateSystemTray()
// ### fixme (15.3.2012): The following issues need to be resolved:
// - Tracking of the actual tray window for DestroyNotify and re-creation
// of the icons on the new window should it change (see Qt 4.X).
// Global context for the X11 system tray containing a display for the primary
// screen and a selection atom from which the tray window can be determined.
class QX11SystemTrayContext
{
Display *display = QX11Info::display();
if (sysTraySelection == XNone) {
int screen = QX11Info::appScreen();
QString net_sys_tray = QString::fromLatin1("_NET_SYSTEM_TRAY_S%1").arg(screen);
sysTraySelection = XInternAtom(display, net_sys_tray.toLatin1(), False);
public:
QX11SystemTrayContext();
~QX11SystemTrayContext();
bool isValid() const { return m_systemTraySelection != 0; }
inline Display *display() const { return m_display; }
inline int screenNumber() const { return m_screenNumber; }
Window locateSystemTray() const;
private:
Display *m_display;
int m_screenNumber;
Atom m_systemTraySelection;
};
QX11SystemTrayContext::QX11SystemTrayContext() : m_display(0), m_screenNumber(0), m_systemTraySelection(0)
{
QScreen *screen = QGuiApplication::primaryScreen();
if (!screen) {
qWarning("%s: No screen.", Q_FUNC_INFO);
return;
}
// Open display using screen name and retrieve screen number from "hostname:0.0"
const QByteArray name = screen->name().toLocal8Bit();
const int dotPos = name.lastIndexOf('.');
if (dotPos != -1) {
bool ok;
const int n = name.mid(dotPos + 1).toInt(&ok);
if (ok)
m_screenNumber = n;
}
m_display = XOpenDisplay(name.constData());
if (!m_display) {
qWarning("%s: Cannot open display '%s'.", Q_FUNC_INFO, name.constData());
return;
}
return XGetSelectionOwner(QX11Info::display(), sysTraySelection);
const QByteArray netSysTray = "_NET_SYSTEM_TRAY_S" + QByteArray::number(m_screenNumber);
m_systemTraySelection = XInternAtom(m_display, netSysTray.constData(), False);
if (!m_systemTraySelection) {
qWarning("%s: Unable to retrieve atom '%s'.", Q_FUNC_INFO, netSysTray.constData());
return;
}
}
XVisualInfo* QSystemTrayIconSys::getSysTrayVisualInfo()
Window QX11SystemTrayContext::locateSystemTray() const
{
Display *display = QX11Info::display();
if (!sysTrayVisual.visual) {
Window win = locateSystemTray();
if (win != XNone) {
Atom actual_type;
int actual_format;
ulong nitems, bytes_remaining;
uchar *data = 0;
int result = XGetWindowProperty(display, win, ATOM(_NET_SYSTEM_TRAY_VISUAL), 0, 1,
False, XA_VISUALID, &actual_type,
&actual_format, &nitems, &bytes_remaining, &data);
VisualID vid = 0;
if (result == Success && data && actual_type == XA_VISUALID && actual_format == 32 &&
nitems == 1 && bytes_remaining == 0)
vid = *(VisualID*)data;
if (data)
XFree(data);
if (vid == 0)
return 0;
uint mask = VisualIDMask;
XVisualInfo *vi, rvi;
int count;
rvi.visualid = vid;
vi = XGetVisualInfo(display, mask, &rvi, &count);
if (vi) {
sysTrayVisual = vi[0];
XFree((char*)vi);
}
if (sysTrayVisual.depth != 32)
memset(&sysTrayVisual, 0, sizeof(sysTrayVisual));
}
}
return sysTrayVisual.visual ? &sysTrayVisual : 0;
if (isValid())
return XGetSelectionOwner(m_display, m_systemTraySelection);
return 0;
}
bool QSystemTrayIconSys::sysTrayTracker(void *message, long *result)
QX11SystemTrayContext::~QX11SystemTrayContext()
{
bool retval = false;
if (QSystemTrayIconSys::oldEventFilter)
retval = QSystemTrayIconSys::oldEventFilter(message, result);
if (trayIcons.isEmpty())
return retval;
Display *display = QX11Info::display();
XEvent *ev = (XEvent *)message;
if (ev->type == DestroyNotify && ev->xany.window == sysTrayWindow) {
sysTrayWindow = locateSystemTray();
memset(&sysTrayVisual, 0, sizeof(sysTrayVisual));
for (int i = 0; i < trayIcons.count(); i++) {
if (sysTrayWindow == XNone) {
QBalloonTip::hideBalloon();
trayIcons[i]->hide(); // still no luck
trayIcons[i]->destroy();
trayIcons[i]->create();
} else
trayIcons[i]->addToTray(); // add it to the new tray
}
retval = true;
} else if (ev->type == ClientMessage && sysTrayWindow == XNone) {
static Atom manager_atom = XInternAtom(display, "MANAGER", False);
XClientMessageEvent *cm = (XClientMessageEvent *)message;
if ((cm->message_type == manager_atom) && ((Atom)cm->data.l[1] == sysTraySelection)) {
sysTrayWindow = cm->data.l[2];
memset(&sysTrayVisual, 0, sizeof(sysTrayVisual));
XSelectInput(display, sysTrayWindow, StructureNotifyMask);
for (int i = 0; i < trayIcons.count(); i++) {
trayIcons[i]->addToTray();
}
retval = true;
}
} else if (ev->type == PropertyNotify && ev->xproperty.atom == ATOM(_NET_SYSTEM_TRAY_VISUAL) &&
ev->xproperty.window == sysTrayWindow) {
memset(&sysTrayVisual, 0, sizeof(sysTrayVisual));
for (int i = 0; i < trayIcons.count(); i++) {
trayIcons[i]->addToTray();
}
}
return retval;
if (m_display)
XCloseDisplay(m_display);
}
QSystemTrayIconSys::QSystemTrayIconSys(QSystemTrayIcon *q)
: QWidget(0, Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint),
q(q), colormap(0)
{
setAttribute(Qt::WA_AlwaysShowToolTips);
setAttribute(Qt::WA_QuitOnClose, false);
setAttribute(Qt::WA_NoSystemBackground, true);
setAttribute(Qt::WA_PaintOnScreen);
Q_GLOBAL_STATIC(QX11SystemTrayContext, qX11SystemTrayContext)
static bool eventFilterAdded = false;
Display *display = QX11Info::display();
if (!eventFilterAdded) {
oldEventFilter = qApp->setEventFilter(sysTrayTracker);
eventFilterAdded = true;
Window root = QX11Info::appRootWindow();
XWindowAttributes attr;
XGetWindowAttributes(display, root, &attr);
if ((attr.your_event_mask & StructureNotifyMask) != StructureNotifyMask) {
(void) QApplication::desktop(); // lame trick to ensure our event mask is not overridden
XSelectInput(display, root, attr.your_event_mask | StructureNotifyMask); // for MANAGER selection
}
}
if (trayIcons.isEmpty()) {
sysTrayWindow = locateSystemTray();
if (sysTrayWindow != XNone)
XSelectInput(display, sysTrayWindow, StructureNotifyMask); // track tray events
}
trayIcons.append(this);
setMouseTracking(true);
#ifndef QT_NO_TOOLTIP
// System tray widget. Could be replaced by a QWindow with
// a backing store if it did not need tooltip handling.
class QSystemTrayIconSys : public QWidget
{
public:
explicit QSystemTrayIconSys(QSystemTrayIcon *q);
inline void updateIcon() { update(); }
inline QSystemTrayIcon *systemTrayIcon() const { return q; }
QRect globalGeometry() const;
protected:
virtual void mousePressEvent(QMouseEvent *ev);
virtual void mouseDoubleClickEvent(QMouseEvent *ev);
virtual bool event(QEvent *);
virtual void paintEvent(QPaintEvent *);
private:
QSystemTrayIcon *q;
};
QSystemTrayIconSys::QSystemTrayIconSys(QSystemTrayIcon *qIn) :
q(qIn)
{
setToolTip(q->toolTip());
#endif
if (sysTrayWindow != XNone)
addToTray();
}
QX11SystemTrayContext *context = qX11SystemTrayContext();
Q_ASSERT(context->isValid());
setAttribute(Qt::WA_AlwaysShowToolTips, true);
setAttribute(Qt::WA_TranslucentBackground, true);
setAttribute(Qt::WA_QuitOnClose, false);
setWindowFlags(Qt::Window | Qt::FramelessWindowHint);
const QSize size(22, 22); // Gnome, standard size
setGeometry(QRect(QPoint(0, 0), size));
setMinimumSize(size);
createWinId();
setMouseTracking(true);
QSystemTrayIconSys::~QSystemTrayIconSys()
{
trayIcons.removeAt(trayIcons.indexOf(this));
Display *display = QX11Info::display();
if (trayIcons.isEmpty()) {
if (sysTrayWindow == XNone)
return;
if (display)
XSelectInput(display, sysTrayWindow, 0); // stop tracking the tray
sysTrayWindow = XNone;
}
if (colormap)
XFreeColormap(display, colormap);
}
Display *display = context->display();
void QSystemTrayIconSys::addToTray()
{
Q_ASSERT(sysTrayWindow != XNone);
Display *display = QX11Info::display();
XVisualInfo *vi = getSysTrayVisualInfo();
if (vi && vi->visual) {
Window root = RootWindow(display, vi->screen);
Window p = root;
if (QWidget *pw = parentWidget())
p = pw->effectiveWinId();
colormap = XCreateColormap(display, root, vi->visual, AllocNone);
XSetWindowAttributes wsa;
wsa.background_pixmap = 0;
wsa.colormap = colormap;
wsa.background_pixel = 0;
wsa.border_pixel = 0;
Window wid = XCreateWindow(display, p, -1, -1, 1, 1,
0, vi->depth, InputOutput, vi->visual,
CWBackPixmap|CWBackPixel|CWBorderPixel|CWColormap, &wsa);
create(wid);
} else {
XSetWindowBackgroundPixmap(display, winId(), ParentRelative);
}
// GNOME, NET WM Specification
// Request to be a tray window according to GNOME, NET WM Specification
static Atom netwm_tray_atom = XInternAtom(display, "_NET_SYSTEM_TRAY_OPCODE", False);
long l[5] = { CurrentTime, SYSTEM_TRAY_REQUEST_DOCK, winId(), 0, 0 };
XEvent ev;
memset(&ev, 0, sizeof(ev));
ev.xclient.type = ClientMessage;
ev.xclient.window = sysTrayWindow;
ev.xclient.window = context->locateSystemTray();
ev.xclient.message_type = netwm_tray_atom;
ev.xclient.format = 32;
memcpy((char *)&ev.xclient.data, (const char *) l, sizeof(l));
XSendEvent(display, sysTrayWindow, False, 0, &ev);
setMinimumSize(22, 22); // required at least on GNOME
XSendEvent(display, ev.xclient.window, False, 0, &ev);
XSync(display, False);
show();
}
void QSystemTrayIconSys::updateIcon()
QRect QSystemTrayIconSys::globalGeometry() const
{
update();
QX11SystemTrayContext *context = qX11SystemTrayContext();
::Window dummy;
int x, y, rootX, rootY;
unsigned int width, height, border, depth;
// Use X11 API since we are parented on the tray, about which the QWindow does not know.
XGetGeometry(context->display(), winId(), &dummy, &x, &y, &width, &height, &border, &depth);
XTranslateCoordinates(context->display(), winId(),
XRootWindow(context->display(), context->screenNumber()),
x, y, &rootX, &rootY, &dummy);
return QRect(QPoint(rootX, rootY), QSize(width, height));
}
void QSystemTrayIconSys::resizeEvent(QResizeEvent *re)
{
QWidget::resizeEvent(re);
updateIcon();
}
void QSystemTrayIconSys::paintEvent(QPaintEvent*)
{
QPainter p(this);
if (!getSysTrayVisualInfo()) {
const QRegion oldSystemClip = p.paintEngine()->systemClip();
const QRect clearedRect = oldSystemClip.boundingRect();
XClearArea(QX11Info::display(), winId(), clearedRect.x(), clearedRect.y(),
clearedRect.width(), clearedRect.height(), False);
QPaintEngine *pe = p.paintEngine();
pe->setSystemClip(clearedRect);
q->icon().paint(&p, rect());
pe->setSystemClip(oldSystemClip);
} else {
p.setCompositionMode(QPainter::CompositionMode_Source);
p.fillRect(rect(), Qt::transparent);
p.setCompositionMode(QPainter::CompositionMode_SourceOver);
q->icon().paint(&p, rect());
}
}
void QSystemTrayIconSys::mousePressEvent(QMouseEvent *ev)
{
@ -308,41 +235,45 @@ void QSystemTrayIconSys::mouseDoubleClickEvent(QMouseEvent *ev)
emit q->activated(QSystemTrayIcon::DoubleClick);
}
#ifndef QT_NO_WHEELEVENT
void QSystemTrayIconSys::wheelEvent(QWheelEvent *e)
{
QApplication::sendEvent(q, e);
}
#endif
bool QSystemTrayIconSys::event(QEvent *e)
{
if (e->type() == QEvent::ToolTip) {
switch (e->type()) {
#ifndef QT_NO_WHEELEVENT
case QEvent::Wheel:
return QApplication::sendEvent(q, e);
#endif
default:
break;
}
return QWidget::event(e);
}
bool QSystemTrayIconSys::x11Event(XEvent *event)
void QSystemTrayIconSys::paintEvent(QPaintEvent *)
{
if (event->type == ReparentNotify)
show();
return QWidget::x11Event(event);
// Note: Transparent pixels require a particular Visual which XCB
// currently does not support yet.
const QRect rect(QPoint(0, 0), geometry().size());
QPainter painter(this);
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.fillRect(rect, Qt::transparent);
painter.setCompositionMode(QPainter::CompositionMode_SourceOver);
q->icon().paint(&painter, rect);
}
////////////////////////////////////////////////////////////////////////////
void QSystemTrayIconPrivate::install_sys()
{
Q_Q(QSystemTrayIcon);
if (!sys)
if (!sys && qX11SystemTrayContext()->isValid())
sys = new QSystemTrayIconSys(q);
}
QRect QSystemTrayIconPrivate::geometry_sys() const
{
if (!sys)
return QRect();
return QRect(sys->mapToGlobal(QPoint(0, 0)), sys->size());
return QRect();
return sys->globalGeometry();
}
void QSystemTrayIconPrivate::remove_sys()
@ -357,9 +288,8 @@ void QSystemTrayIconPrivate::remove_sys()
void QSystemTrayIconPrivate::updateIcon_sys()
{
if (!sys)
return;
sys->updateIcon();
if (sys)
sys->updateIcon();
}
void QSystemTrayIconPrivate::updateMenu_sys()
@ -378,7 +308,10 @@ void QSystemTrayIconPrivate::updateToolTip_sys()
bool QSystemTrayIconPrivate::isSystemTrayAvailable_sys()
{
return QSystemTrayIconSys::locateSystemTray() != XNone;
const QString platform = QGuiApplication::platformName();
if (platform.compare(QStringLiteral("xcb"), Qt::CaseInsensitive) == 0)
return qX11SystemTrayContext()->locateSystemTray() != None;
return false;
}
bool QSystemTrayIconPrivate::supportsMessages_sys()
@ -391,8 +324,8 @@ void QSystemTrayIconPrivate::showMessage_sys(const QString &message, const QStri
{
if (!sys)
return;
QPoint g = sys->mapToGlobal(QPoint(0, 0));
QBalloonTip::showBalloon(icon, message, title, sys->q,
const QPoint g = sys->globalGeometry().topLeft();
QBalloonTip::showBalloon(icon, message, title, sys->systemTrayIcon(),
QPoint(g.x() + sys->width()/2, g.y() + sys->height()/2),
msecs);
}

3
src/widgets/util/util.pri
View File

@ -29,6 +29,9 @@ SOURCES += \
win32:!wince* {
SOURCES += util/qsystemtrayicon_win.cpp
} else:contains(QT_CONFIG, xcb) {
SOURCES += util/qsystemtrayicon_x11.cpp
CONFIG += x11
} else {
SOURCES += util/qsystemtrayicon_qpa.cpp
}

7
tests/auto/widgets/util/qsystemtrayicon/tst_qsystemtrayicon.cpp
View File

@ -42,7 +42,7 @@
#include <QtTest/QtTest>
#include <qcoreapplication.h>
#include <qguiapplication.h>
#include <qdebug.h>
#include <qsystemtrayicon.h>
#include <qmenu.h>
@ -125,7 +125,10 @@ void tst_QSystemTrayIcon::supportsMessages()
#elif defined(Q_OS_WIN) && !defined(Q_OS_WINCE)
QCOMPARE(QSystemTrayIcon::supportsMessages(), true);
#else
QEXPECT_FAIL("", "QTBUG-20978 QSystemTrayIcon is unimplemented for qpa", Abort);
const QString platform = QGuiApplication::platformName();
if (platform.compare(QStringLiteral("xcb"), Qt::CaseInsensitive)) {
QEXPECT_FAIL("", "QTBUG-20978 QSystemTrayIcon is unimplemented for qpa", Abort);
}
QCOMPARE(QSystemTrayIcon::supportsMessages(), true);
#endif
}