The Tor Browser: ipc/chromium/src/base/message_pump

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.

     2 // Use of this source code is governed by a BSD-style license that can be

     3 // found in the LICENSE file.

     5 #ifndef BASE_MESSAGE_PUMP_ANDROID_H_

     6 #define BASE_MESSAGE_PUMP_ANDROID_H_

     8 #include "base/message_pump.h"

     9 #include "base/time.h"

    11 namespace base {

    13 class MessagePumpForUI;

    15 class MessagePumpAndroid {

    17  public:

    18   MessagePumpAndroid(MessagePumpForUI &pump);

    19   ~MessagePumpAndroid();

    21  private:

    22   base::MessagePumpForUI &pump;

    23 };

    25 // This class implements a MessagePump needed for TYPE_UI MessageLoops on

    26 // Android

    27 class MessagePumpForUI : public MessagePump {

    29  public:

    30   MessagePumpForUI();

    31   ~MessagePumpForUI();

    33   virtual void Run(Delegate* delegate);

    34   virtual void Quit();

    35   virtual void ScheduleWork();

    36   virtual void ScheduleDelayedWork(const TimeTicks& delayed_work_time);

    38   // Internal methods used for processing the pump callbacks.  They are

    39   // public for simplicity but should not be used directly.

    40   // HandleDispatch is called after the poll has completed.

    41   void HandleDispatch();

    43  private:

    44   // We may make recursive calls to Run, so we save state that needs to be

    45   // separate between them in this structure type.

    46   struct RunState {

    47     Delegate* delegate;

    49     // Used to flag that the current Run() invocation should return ASAP.

    50     bool should_quit;

    52     // Used to count how many Run() invocations are on the stack.

    53     int run_depth;

    55     // Used internally for controlling whether we want a message pump

    56     // iteration to be blocking or not.

    57     bool more_work_is_plausible;

    58   };

    60   RunState* state_;

    62   // This is the time when we need to do delayed work.

    63   TimeTicks delayed_work_time_;

    65   bool work_scheduled;

    67   // MessagePump implementation for Android based on the GLib implement.

    68   MessagePumpAndroid pump;

    70   DISALLOW_COPY_AND_ASSIGN(MessagePumpForUI);

    71 };

    73 }  // namespace base

    75 #endif  // BASE_MESSAGE_PUMP_ANDROID_H_

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