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39
40#include "qeventdispatcher_glib_p.h"
41
42#include "qguiapplication.h"
43
44#include "qplatformdefs.h"
45
46#include <glib.h>
47#include "private/qguiapplication_p.h"
48
49QT_BEGIN_NAMESPACE
50
51struct GUserEventSource
52{
53 GSource source;
54 QPAEventDispatcherGlib *q;
55 QPAEventDispatcherGlibPrivate *d;
56};
57
58static gboolean userEventSourcePrepare(GSource *source, gint *timeout)
59{
60 Q_UNUSED(timeout)
61 GUserEventSource *userEventSource = reinterpret_cast<GUserEventSource *>(source);
62 return userEventSource->d->wakeUpCalled;
63}
64
65static gboolean userEventSourceCheck(GSource *source)
66{
67 return userEventSourcePrepare(source, timeout: 0);
68}
69
70static gboolean userEventSourceDispatch(GSource *source, GSourceFunc, gpointer)
71{
72 GUserEventSource *userEventSource = reinterpret_cast<GUserEventSource *>(source);
73 QPAEventDispatcherGlib *dispatcher = userEventSource->q;
74 QWindowSystemInterface::sendWindowSystemEvents(flags: dispatcher->m_flags);
75 return true;
76}
77
78static GSourceFuncs userEventSourceFuncs = {
79 .prepare: userEventSourcePrepare,
80 .check: userEventSourceCheck,
81 .dispatch: userEventSourceDispatch,
82 NULL,
83 NULL,
84 NULL
85};
86
87QPAEventDispatcherGlibPrivate::QPAEventDispatcherGlibPrivate(GMainContext *context)
88 : QEventDispatcherGlibPrivate(context)
89{
90 Q_Q(QPAEventDispatcherGlib);
91 userEventSource = reinterpret_cast<GUserEventSource *>(g_source_new(source_funcs: &userEventSourceFuncs,
92 struct_size: sizeof(GUserEventSource)));
93 userEventSource->q = q;
94 userEventSource->d = this;
95 g_source_set_can_recurse(source: &userEventSource->source, can_recurse: true);
96 g_source_attach(source: &userEventSource->source, context: mainContext);
97}
98
99
100QPAEventDispatcherGlib::QPAEventDispatcherGlib(QObject *parent)
101 : QEventDispatcherGlib(*new QPAEventDispatcherGlibPrivate, parent)
102 , m_flags(QEventLoop::AllEvents)
103{
104 Q_D(QPAEventDispatcherGlib);
105 d->userEventSource->q = this;
106}
107
108QPAEventDispatcherGlib::~QPAEventDispatcherGlib()
109{
110 Q_D(QPAEventDispatcherGlib);
111
112 g_source_destroy(source: &d->userEventSource->source);
113 g_source_unref(source: &d->userEventSource->source);
114 d->userEventSource = 0;
115}
116
117bool QPAEventDispatcherGlib::processEvents(QEventLoop::ProcessEventsFlags flags)
118{
119 m_flags = flags;
120 return QEventDispatcherGlib::processEvents(flags: m_flags);
121}
122
123QT_END_NAMESPACE
124

source code of qtbase/src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp