blob: 44cbe042aebeb22e3c099780de0ba83f6c4c10d0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_ipc_Neutering_h
#define mozilla_ipc_Neutering_h
/**
* This header declares RAII wrappers for Window neutering. See
* WindowsMessageLoop.cpp for more details.
*/
namespace mozilla {
namespace ipc {
/**
* This class is a RAII wrapper around Window neutering. As long as a
* NeuteredWindowRegion object is instantiated, Win32 windows belonging to the
* current thread will be neutered. It is safe to nest multiple instances of
* this class.
*/
class MOZ_RAII NeuteredWindowRegion {
public:
explicit NeuteredWindowRegion(bool aDoNeuter);
~NeuteredWindowRegion();
/**
* This function clears any backlog of nonqueued messages that are pending for
* the current thread.
*/
void PumpOnce();
private:
bool mNeuteredByThis;
};
/**
* This class is analagous to MutexAutoUnlock for Mutex; it is an RAII class
* that is to be instantiated within a NeuteredWindowRegion, thus temporarily
* disabling neutering for the remainder of its enclosing block.
* @see NeuteredWindowRegion
*/
class MOZ_RAII DeneuteredWindowRegion {
public:
explicit DeneuteredWindowRegion();
~DeneuteredWindowRegion();
private:
bool mReneuter;
};
class MOZ_RAII SuppressedNeuteringRegion {
public:
explicit SuppressedNeuteringRegion();
~SuppressedNeuteringRegion();
static inline bool IsNeuteringSuppressed() { return sSuppressNeutering; }
private:
bool mReenable;
static bool sSuppressNeutering;
};
} // namespace ipc
} // namespace mozilla
#endif // mozilla_ipc_Neutering_h
|
