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
191
192
193
194
195
196
197
198
|
/* -*- 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/. */
#include "mozilla/dom/Directory.h"
#include "GetDirectoryListingTask.h"
#include "GetFilesTask.h"
#include "nsIFile.h"
#include "nsString.h"
#include "mozilla/dom/BlobImpl.h"
#include "mozilla/dom/DirectoryBinding.h"
#include "mozilla/dom/FileSystemBase.h"
#include "mozilla/dom/FileSystemUtils.h"
#include "mozilla/dom/OSFileSystem.h"
#include "mozilla/dom/WorkerPrivate.h"
namespace mozilla::dom {
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(Directory)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(Directory)
if (tmp->mFileSystem) {
tmp->mFileSystem->Unlink();
tmp->mFileSystem = nullptr;
}
NS_IMPL_CYCLE_COLLECTION_UNLINK(mGlobal)
NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(Directory)
if (tmp->mFileSystem) {
tmp->mFileSystem->Traverse(cb);
}
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mGlobal)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(Directory)
NS_IMPL_CYCLE_COLLECTING_RELEASE(Directory)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Directory)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
/* static */
already_AddRefed<Directory> Directory::Constructor(const GlobalObject& aGlobal,
const nsAString& aRealPath,
ErrorResult& aRv) {
nsCOMPtr<nsIFile> path;
aRv = NS_NewLocalFile(aRealPath, true, getter_AddRefs(path));
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
if (NS_WARN_IF(!global)) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
return Create(global, path);
}
/* static */
already_AddRefed<Directory> Directory::Create(nsIGlobalObject* aGlobal,
nsIFile* aFile,
FileSystemBase* aFileSystem) {
MOZ_ASSERT(aGlobal);
MOZ_ASSERT(aFile);
RefPtr<Directory> directory = new Directory(aGlobal, aFile, aFileSystem);
return directory.forget();
}
Directory::Directory(nsIGlobalObject* aGlobal, nsIFile* aFile,
FileSystemBase* aFileSystem)
: mGlobal(aGlobal), mFile(aFile) {
MOZ_ASSERT(aFile);
// aFileSystem can be null. In this case we create a OSFileSystem when needed.
if (aFileSystem) {
// More likely, this is a OSFileSystem. This object keeps a reference of
// mGlobal but it's not cycle collectable and to avoid manual
// addref/release, it's better to have 1 object per directory. For this
// reason we clone it here.
mFileSystem = aFileSystem->Clone();
}
}
Directory::~Directory() = default;
nsIGlobalObject* Directory::GetParentObject() const { return mGlobal; }
JSObject* Directory::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return Directory_Binding::Wrap(aCx, this, aGivenProto);
}
void Directory::GetName(nsAString& aRetval, ErrorResult& aRv) {
aRetval.Truncate();
RefPtr<FileSystemBase> fs = GetFileSystem(aRv);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
fs->GetDirectoryName(mFile, aRetval, aRv);
}
void Directory::GetPath(nsAString& aRetval, ErrorResult& aRv) {
// This operation is expensive. Better to cache the result.
if (mPath.IsEmpty()) {
RefPtr<FileSystemBase> fs = GetFileSystem(aRv);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
fs->GetDOMPath(mFile, mPath, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
}
aRetval = mPath;
}
nsresult Directory::GetFullRealPath(nsAString& aPath) {
nsresult rv = mFile->GetPath(aPath);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
return NS_OK;
}
already_AddRefed<Promise> Directory::GetFilesAndDirectories(ErrorResult& aRv) {
RefPtr<FileSystemBase> fs = GetFileSystem(aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
RefPtr<GetDirectoryListingTaskChild> task =
GetDirectoryListingTaskChild::Create(fs, this, mFile, mFilters, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
task->Start();
return task->GetPromise();
}
already_AddRefed<Promise> Directory::GetFiles(bool aRecursiveFlag,
ErrorResult& aRv) {
ErrorResult rv;
RefPtr<FileSystemBase> fs = GetFileSystem(rv);
if (NS_WARN_IF(rv.Failed())) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
RefPtr<GetFilesTaskChild> task =
GetFilesTaskChild::Create(fs, this, mFile, aRecursiveFlag, rv);
if (NS_WARN_IF(rv.Failed())) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
task->Start();
return task->GetPromise();
}
void Directory::SetContentFilters(const nsAString& aFilters) {
mFilters = aFilters;
}
FileSystemBase* Directory::GetFileSystem(ErrorResult& aRv) {
if (!mFileSystem) {
nsAutoString path;
aRv = mFile->GetPath(path);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
RefPtr<OSFileSystem> fs = new OSFileSystem(path);
fs->Init(mGlobal);
mFileSystem = fs;
}
return mFileSystem;
}
} // namespace mozilla::dom
|
