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
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/base/clipboard/clipboard.h"
#include <iterator>
#include <limits>
#include <memory>
#include "base/debug/dump_without_crashing.h"
#include "base/logging.h"
#include "base/memory/ptr_util.h"
#include "base/stl_util.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/gfx/geometry/size.h"
namespace ui {
base::LazyInstance<Clipboard::AllowedThreadsVector>::DestructorAtExit
Clipboard::allowed_threads_ = LAZY_INSTANCE_INITIALIZER;
base::LazyInstance<Clipboard::ClipboardMap>::DestructorAtExit
Clipboard::clipboard_map_ = LAZY_INSTANCE_INITIALIZER;
base::LazyInstance<base::Lock>::Leaky Clipboard::clipboard_map_lock_ =
LAZY_INSTANCE_INITIALIZER;
// static
void Clipboard::SetAllowedThreads(
const std::vector<base::PlatformThreadId>& allowed_threads) {
base::AutoLock lock(clipboard_map_lock_.Get());
allowed_threads_.Get().clear();
std::copy(allowed_threads.begin(), allowed_threads.end(),
std::back_inserter(allowed_threads_.Get()));
}
// static
void Clipboard::SetClipboardForCurrentThread(
std::unique_ptr<Clipboard> platform_clipboard) {
base::AutoLock lock(clipboard_map_lock_.Get());
base::PlatformThreadId id = Clipboard::GetAndValidateThreadID();
ClipboardMap* clipboard_map = clipboard_map_.Pointer();
ClipboardMap::const_iterator it = clipboard_map->find(id);
if (it != clipboard_map->end()) {
// This shouldn't happen. The clipboard should not already exist.
NOTREACHED();
}
clipboard_map->insert(std::make_pair(id, std::move(platform_clipboard)));
}
// static
Clipboard* Clipboard::GetForCurrentThread() {
base::AutoLock lock(clipboard_map_lock_.Get());
base::PlatformThreadId id = GetAndValidateThreadID();
ClipboardMap* clipboard_map = clipboard_map_.Pointer();
ClipboardMap::const_iterator it = clipboard_map->find(id);
if (it != clipboard_map->end())
return it->second.get();
Clipboard* clipboard = Clipboard::Create();
clipboard_map->insert(std::make_pair(id, base::WrapUnique(clipboard)));
return clipboard;
}
// static
void Clipboard::OnPreShutdownForCurrentThread() {
base::AutoLock lock(clipboard_map_lock_.Get());
base::PlatformThreadId id = GetAndValidateThreadID();
ClipboardMap* clipboard_map = clipboard_map_.Pointer();
ClipboardMap::const_iterator it = clipboard_map->find(id);
if (it != clipboard_map->end())
it->second->OnPreShutdown();
}
// static
void Clipboard::DestroyClipboardForCurrentThread() {
base::AutoLock lock(clipboard_map_lock_.Get());
ClipboardMap* clipboard_map = clipboard_map_.Pointer();
base::PlatformThreadId id = base::PlatformThread::CurrentId();
ClipboardMap::iterator it = clipboard_map->find(id);
if (it != clipboard_map->end())
clipboard_map->erase(it);
}
base::Time Clipboard::GetLastModifiedTime() const {
return base::Time();
}
void Clipboard::ClearLastModifiedTime() {}
void Clipboard::DispatchObject(ObjectType type, const ObjectMapParams& params) {
// Ignore writes with empty parameters.
for (const auto& param : params) {
if (param.empty())
return;
}
switch (type) {
case CBF_TEXT:
WriteText(&(params[0].front()), params[0].size());
break;
case CBF_HTML:
if (params.size() == 2) {
if (params[1].empty())
return;
WriteHTML(&(params[0].front()), params[0].size(),
&(params[1].front()), params[1].size());
} else if (params.size() == 1) {
WriteHTML(&(params[0].front()), params[0].size(), NULL, 0);
}
break;
case CBF_RTF:
WriteRTF(&(params[0].front()), params[0].size());
break;
case CBF_BOOKMARK:
WriteBookmark(&(params[0].front()), params[0].size(),
&(params[1].front()), params[1].size());
break;
case CBF_WEBKIT:
WriteWebSmartPaste();
break;
case CBF_SMBITMAP: {
// Usually, the params are just UTF-8 strings. However, for images,
// ScopedClipboardWriter actually sizes the buffer to sizeof(SkBitmap*),
// aliases the contents of the vector to a SkBitmap**, and writes the
// pointer to the actual SkBitmap in the clipboard object param.
const char* packed_pointer_buffer = ¶ms[0].front();
WriteBitmap(**reinterpret_cast<SkBitmap* const*>(packed_pointer_buffer));
break;
}
case CBF_DATA:
WriteData(
FormatType::Deserialize(
std::string(&(params[0].front()), params[0].size())),
&(params[1].front()),
params[1].size());
break;
default:
NOTREACHED();
}
}
base::PlatformThreadId Clipboard::GetAndValidateThreadID() {
clipboard_map_lock_.Get().AssertAcquired();
const base::PlatformThreadId id = base::PlatformThread::CurrentId();
// TODO(fdoray): Surround this block with #if DCHECK_IS_ON() and remove the
// DumpWithoutCrashing() call once https://crbug.com/662055 is resolved.
AllowedThreadsVector* allowed_threads = allowed_threads_.Pointer();
if (!allowed_threads->empty() && !base::ContainsValue(*allowed_threads, id)) {
NOTREACHED();
base::debug::DumpWithoutCrashing();
}
return id;
}
} // namespace ui
|
