blob: 5f611aa378985bf51c653aafabb6aca36f64cd13 (
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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
/* -*- 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 nsWindowsHelpers_h
#define nsWindowsHelpers_h
#include <windows.h>
#include "nsAutoRef.h"
#include "nscore.h"
// ----------------------------------------------------------------------------
// Critical Section helper class
// ----------------------------------------------------------------------------
class AutoCriticalSection
{
public:
AutoCriticalSection(LPCRITICAL_SECTION aSection)
: mSection(aSection)
{
::EnterCriticalSection(mSection);
}
~AutoCriticalSection()
{
::LeaveCriticalSection(mSection);
}
private:
LPCRITICAL_SECTION mSection;
};
template<>
class nsAutoRefTraits<HKEY>
{
public:
typedef HKEY RawRef;
static HKEY Void()
{
return nullptr;
}
static void Release(RawRef aFD)
{
if (aFD != Void()) {
RegCloseKey(aFD);
}
}
};
template<>
class nsAutoRefTraits<SC_HANDLE>
{
public:
typedef SC_HANDLE RawRef;
static SC_HANDLE Void()
{
return nullptr;
}
static void Release(RawRef aFD)
{
if (aFD != Void()) {
CloseServiceHandle(aFD);
}
}
};
template<>
class nsSimpleRef<HANDLE>
{
protected:
typedef HANDLE RawRef;
nsSimpleRef() : mRawRef(nullptr)
{
}
nsSimpleRef(RawRef aRawRef) : mRawRef(aRawRef)
{
}
bool HaveResource() const
{
return mRawRef && mRawRef != INVALID_HANDLE_VALUE;
}
public:
RawRef get() const
{
return mRawRef;
}
static void Release(RawRef aRawRef)
{
if (aRawRef && aRawRef != INVALID_HANDLE_VALUE) {
CloseHandle(aRawRef);
}
}
RawRef mRawRef;
};
template<>
class nsAutoRefTraits<HMODULE>
{
public:
typedef HMODULE RawRef;
static RawRef Void()
{
return nullptr;
}
static void Release(RawRef aFD)
{
if (aFD != Void()) {
FreeLibrary(aFD);
}
}
};
typedef nsAutoRef<HKEY> nsAutoRegKey;
typedef nsAutoRef<SC_HANDLE> nsAutoServiceHandle;
typedef nsAutoRef<HANDLE> nsAutoHandle;
typedef nsAutoRef<HMODULE> nsModuleHandle;
namespace {
bool inline
IsRunningInWindowsMetro()
{
static bool alreadyChecked = false;
static bool isMetro = false;
if (alreadyChecked) {
return isMetro;
}
HMODULE user32DLL = LoadLibraryW(L"user32.dll");
if (!user32DLL) {
return false;
}
typedef BOOL (WINAPI* IsImmersiveProcessFunc)(HANDLE aProcess);
IsImmersiveProcessFunc IsImmersiveProcessPtr =
(IsImmersiveProcessFunc)GetProcAddress(user32DLL,
"IsImmersiveProcess");
FreeLibrary(user32DLL);
if (!IsImmersiveProcessPtr) {
// isMetro is already set to false.
alreadyChecked = true;
return false;
}
isMetro = IsImmersiveProcessPtr(GetCurrentProcess());
alreadyChecked = true;
return isMetro;
}
HMODULE inline
LoadLibrarySystem32(LPCWSTR aModule)
{
WCHAR systemPath[MAX_PATH + 1] = { L'\0' };
// If GetSystemPath fails we accept that we'll load the DLLs from the
// normal search path.
GetSystemDirectoryW(systemPath, MAX_PATH + 1);
size_t systemDirLen = wcslen(systemPath);
// Make the system directory path terminate with a slash
if (systemDirLen && systemPath[systemDirLen - 1] != L'\\') {
systemPath[systemDirLen] = L'\\';
++systemDirLen;
// No need to re-nullptr terminate
}
size_t fileLen = wcslen(aModule);
wcsncpy(systemPath + systemDirLen, aModule,
MAX_PATH - systemDirLen);
if (systemDirLen + fileLen <= MAX_PATH) {
systemPath[systemDirLen + fileLen] = L'\0';
} else {
systemPath[MAX_PATH] = L'\0';
}
return LoadLibraryW(systemPath);
}
}
#endif
|
