1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/chromium/src/base/message_pump_qt.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,83 @@
1.4 +// Copyright (c) 2010 The Chromium Authors. All rights reserved.
1.5 +// Use of this source code is governed by a BSD-style license that can be
1.6 +// found in the LICENSE file.
1.7 +
1.8 +#ifndef BASE_MESSAGE_PUMP_QT_H_
1.9 +#define BASE_MESSAGE_PUMP_QT_H_
1.10 +
1.11 +#include <qobject.h>
1.12 +
1.13 +#include "base/message_pump.h"
1.14 +#include "base/time.h"
1.15 +
1.16 +class QTimer;
1.17 +
1.18 +namespace base {
1.19 +
1.20 +class MessagePumpForUI;
1.21 +
1.22 +class MessagePumpQt : public QObject {
1.23 + Q_OBJECT
1.24 +
1.25 + public:
1.26 + MessagePumpQt(MessagePumpForUI &pump);
1.27 + ~MessagePumpQt();
1.28 +
1.29 + virtual bool event (QEvent *e);
1.30 + void scheduleDelayedIfNeeded(const TimeTicks& delayed_work_time);
1.31 +
1.32 + public Q_SLOTS:
1.33 + void dispatchDelayed();
1.34 +
1.35 + private:
1.36 + base::MessagePumpForUI &pump;
1.37 + QTimer* mTimer;
1.38 +};
1.39 +
1.40 +// This class implements a MessagePump needed for TYPE_UI MessageLoops on
1.41 +// OS_LINUX platforms using QApplication event loop
1.42 +class MessagePumpForUI : public MessagePump {
1.43 +
1.44 + public:
1.45 + MessagePumpForUI();
1.46 + ~MessagePumpForUI();
1.47 +
1.48 + virtual void Run(Delegate* delegate);
1.49 + virtual void Quit();
1.50 + virtual void ScheduleWork();
1.51 + virtual void ScheduleDelayedWork(const TimeTicks& delayed_work_time);
1.52 +
1.53 + // Internal methods used for processing the pump callbacks. They are
1.54 + // public for simplicity but should not be used directly.
1.55 + // HandleDispatch is called after the poll has completed.
1.56 + void HandleDispatch();
1.57 +
1.58 + private:
1.59 + // We may make recursive calls to Run, so we save state that needs to be
1.60 + // separate between them in this structure type.
1.61 + struct RunState {
1.62 + Delegate* delegate;
1.63 +
1.64 + // Used to flag that the current Run() invocation should return ASAP.
1.65 + bool should_quit;
1.66 +
1.67 + // Used to count how many Run() invocations are on the stack.
1.68 + int run_depth;
1.69 + };
1.70 +
1.71 + RunState* state_;
1.72 +
1.73 + // This is the time when we need to do delayed work.
1.74 + TimeTicks delayed_work_time_;
1.75 +
1.76 + // MessagePump implementation for Qt based on the GLib implement.
1.77 + // On Qt we use a QObject base class and the
1.78 + // default qApp in order to process events through QEventLoop.
1.79 + MessagePumpQt qt_pump;
1.80 +
1.81 + DISALLOW_COPY_AND_ASSIGN(MessagePumpForUI);
1.82 +};
1.83 +
1.84 +} // namespace base
1.85 +
1.86 +#endif // BASE_MESSAGE_PUMP_QT_H_
