Qt 4.8
qeventdispatcher_mac_p.h
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75 
76 #ifndef QEVENTDISPATCHER_MAC_P_H
77 #define QEVENTDISPATCHER_MAC_P_H
78 
79 //
80 // W A R N I N G
81 // -------------
82 //
83 // This file is not part of the Qt API. It exists purely as an
84 // implementation detail. This header file may change from version to
85 // version without notice, or even be removed.
86 //
87 // We mean it.
88 //
89 
90 #include <QtGui/qwindowdefs.h>
91 #include <QtCore/qhash.h>
92 #include <QtCore/qstack.h>
93 #include "private/qabstracteventdispatcher_p.h"
94 #include "private/qt_mac_p.h"
95 
97 
98 #ifdef QT_MAC_USE_COCOA
99 typedef struct _NSModalSession *NSModalSession;
100 typedef struct _QCocoaModalSessionInfo {
102  NSModalSession session;
103  void *nswindow;
104 } QCocoaModalSessionInfo;
105 #endif
106 
108 
110 {
111  Q_OBJECT
113 
114 public:
115  explicit QEventDispatcherMac(QObject *parent = 0);
117 
118  bool processEvents(QEventLoop::ProcessEventsFlags flags);
119  bool hasPendingEvents();
120 
121  void registerSocketNotifier(QSocketNotifier *notifier);
122  void unregisterSocketNotifier(QSocketNotifier *notifier);
123 
124  void registerTimer(int timerId, int interval, QObject *object);
125  bool unregisterTimer(int timerId);
126  bool unregisterTimers(QObject *object);
127  QList<TimerInfo> registeredTimers(QObject *object) const;
128 
129  void wakeUp();
130  void flush();
131  void interrupt();
132 
133 private:
134  friend void qt_mac_select_timer_callbk(__EventLoopTimer*, void*);
135  friend class QApplicationPrivate;
136 };
137 
138 struct MacTimerInfo {
139  int id;
140  int interval;
142  bool pending;
143  CFRunLoopTimerRef runLoopTimer;
144  bool operator==(const MacTimerInfo &other)
145  {
146  return (id == other.id);
147  }
148 };
150 
152  MacSocketInfo() : socket(0), runloop(0), readNotifier(0), writeNotifier(0) {}
153  CFSocketRef socket;
154  CFRunLoopSourceRef runloop;
157 };
159 
161 {
163 
164 public:
166 
168  // Set 'blockSendPostedEvents' to true if you _really_ need
169  // to make sure that qt events are not posted while calling
170  // low-level cocoa functions (like beginModalForWindow). And
171  // use a QBoolBlocker to be safe:
173 #ifdef QT_MAC_USE_COCOA
174  // The following variables help organizing modal sessions:
175  static QStack<QCocoaModalSessionInfo> cocoaModalSessionStack;
176  static bool currentExecIsNSAppRun;
177  static bool nsAppRunCalledByQt;
178  static bool cleanupModalSessionsNeeded;
179  static NSModalSession currentModalSessionCached;
180  static NSModalSession currentModalSession();
181  static void updateChildrenWorksWhenModal();
182  static void temporarilyStopAllModalSessions();
183  static void beginModalSession(QWidget *widget);
184  static void endModalSession(QWidget *widget);
185  static void cancelWaitForMoreEvents();
186  static void cleanupModalSessions();
187  static void ensureNSAppInitialized();
188 #endif
189 
191  QList<void *> queuedUserInputEvents; // List of EventRef in Carbon, and NSEvent * in Cocoa
192  CFRunLoopSourceRef postedEventsSource;
193  CFRunLoopObserverRef waitingObserver;
194  CFRunLoopObserverRef firstTimeObserver;
197  static bool interrupt;
198 private:
199  static Boolean postedEventSourceEqualCallback(const void *info1, const void *info2);
200  static void postedEventsSourcePerformCallback(void *info);
201  static void activateTimer(CFRunLoopTimerRef, void *info);
202  static void waitingObserverCallback(CFRunLoopObserverRef observer,
203  CFRunLoopActivity activity, void *info);
204  static void firstLoopEntry(CFRunLoopObserverRef ref, CFRunLoopActivity activity, void *info);
205 };
206 
207 #ifdef QT_MAC_USE_COCOA
208 class QtMacInterruptDispatcherHelp : public QObject
209 {
210  static QtMacInterruptDispatcherHelp *instance;
211  bool cancelled;
212 
213  QtMacInterruptDispatcherHelp();
214  ~QtMacInterruptDispatcherHelp();
215 
216  public:
217  static void interruptLater();
218  static void cancelInterruptLater();
219 };
220 #endif
221 
223 
224 #endif // QEVENTDISPATCHER_MAC_P_H
CFRunLoopObserverRef waitingObserver
static mach_timebase_info_data_t info
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
QPointer< QWidget > widget
The QAtomicInt class provides platform-independent atomic operations on integers. ...
Definition: qatomic.h:55
CFRunLoopTimerRef runLoopTimer
QHash< int, MacTimerInfo * > MacTimerHash
The QWidget class is the base class of all user interface objects.
Definition: qwidget.h:150
The QStack class is a template class that provides a stack.
Definition: qcontainerfwd.h:63
The QHash class is a template class that provides a hash-table-based dictionary.
Definition: qdatastream.h:66
The QObject class is the base class of all Qt objects.
Definition: qobject.h:111
The QSocketNotifier class provides support for monitoring activity on a file descriptor.
bool operator==(const MacTimerInfo &other)
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
CFRunLoopSourceRef runloop
#define Q_OBJECT
Definition: qobjectdefs.h:157
QHash< int, MacSocketInfo * > MacSocketHash
#define Q_DECLARE_PUBLIC(Class)
Definition: qglobal.h:2477
Q_CORE_EXPORT QTextStream & flush(QTextStream &s)
CFRunLoopObserverRef firstTimeObserver
#define Q_DECLARE_PRIVATE(Class)
Definition: qglobal.h:2467
The QAbstractEventDispatcher class provides an interface to manage Qt&#39;s event queue.
The QList class is a template class that provides lists.
Definition: qdatastream.h:62