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
|
// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/modules/clipboard/clipboard.h"
#include <utility>
#include "net/base/mime_util.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/core/dom/events/event.h"
#include "third_party/blink/renderer/core/event_target_names.h"
#include "third_party/blink/renderer/core/event_type_names.h"
#include "third_party/blink/renderer/core/frame/local_dom_window.h"
#include "third_party/blink/renderer/core/frame/navigator.h"
#include "third_party/blink/renderer/core/frame/web_feature.h"
#include "third_party/blink/renderer/modules/clipboard/clipboard_promise.h"
#include "third_party/blink/renderer/platform/instrumentation/use_counter.h"
#include "ui/base/clipboard/clipboard_constants.h"
#include "ui/base/ui_base_features.h"
namespace blink {
// static
const char Clipboard::kSupplementName[] = "Clipboard";
Clipboard* Clipboard::clipboard(Navigator& navigator) {
Clipboard* clipboard = Supplement<Navigator>::From<Clipboard>(navigator);
if (!clipboard) {
clipboard = MakeGarbageCollected<Clipboard>(navigator);
ProvideTo(navigator, clipboard);
}
return clipboard;
}
Clipboard::Clipboard(Navigator& navigator) : Supplement<Navigator>(navigator) {}
ScriptPromise<IDLSequence<ClipboardItem>> Clipboard::read(
ScriptState* script_state,
ClipboardUnsanitizedFormats* formats,
ExceptionState& exception_state) {
LocalDOMWindow* window = GetSupplementable()->DomWindow();
LocalFrame* local_frame = window ? window->GetFrame() : nullptr;
if (local_frame && local_frame->IsAdScriptInStack()) {
UseCounter::Count(GetExecutionContext(),
WebFeature::kAdScriptInStackOnClipboardRead);
}
return ClipboardPromise::CreateForRead(GetExecutionContext(), script_state,
formats, exception_state);
}
ScriptPromise<IDLString> Clipboard::readText(ScriptState* script_state,
ExceptionState& exception_state) {
LocalDOMWindow* window = GetSupplementable()->DomWindow();
LocalFrame* local_frame = window ? window->GetFrame() : nullptr;
if (local_frame && local_frame->IsAdScriptInStack()) {
UseCounter::Count(GetExecutionContext(),
WebFeature::kAdScriptInStackOnClipboardRead);
}
return ClipboardPromise::CreateForReadText(GetExecutionContext(),
script_state, exception_state);
}
void Clipboard::AddedEventListener(
const AtomicString& event_type,
RegisteredEventListener& registered_listener) {
EventTarget::AddedEventListener(event_type, registered_listener);
if (!base::FeatureList::IsEnabled(features::kClipboardChangeEvent) ||
event_type != event_type_names::kClipboardchange) {
return;
}
UseCounter::Count(GetExecutionContext(),
WebFeature::kClipboardChangeEventAddListener);
if (!clipboard_change_event_controller_) {
Navigator& navigator = *GetSupplementable();
if (navigator.DomWindow()) {
clipboard_change_event_controller_ =
MakeGarbageCollected<ClipboardChangeEventController>(navigator, this);
}
}
if (clipboard_change_event_controller_) {
clipboard_change_event_controller_->RegisterWithDispatcher();
}
}
void Clipboard::RemovedEventListener(
const AtomicString& event_type,
const RegisteredEventListener& registered_listener) {
EventTarget::RemovedEventListener(event_type, registered_listener);
if (!base::FeatureList::IsEnabled(features::kClipboardChangeEvent) ||
event_type != event_type_names::kClipboardchange) {
return;
}
if (clipboard_change_event_controller_ &&
!HasEventListeners(event_type_names::kClipboardchange)) {
clipboard_change_event_controller_->UnregisterWithDispatcher();
}
}
ScriptPromise<IDLUndefined> Clipboard::write(
ScriptState* script_state,
const HeapVector<Member<ClipboardItem>>& data,
ExceptionState& exception_state) {
return ClipboardPromise::CreateForWrite(GetExecutionContext(), script_state,
std::move(data), exception_state);
}
ScriptPromise<IDLUndefined> Clipboard::writeText(
ScriptState* script_state,
const String& data,
ExceptionState& exception_state) {
return ClipboardPromise::CreateForWriteText(
GetExecutionContext(), script_state, data, exception_state);
}
const AtomicString& Clipboard::InterfaceName() const {
return event_target_names::kClipboard;
}
ExecutionContext* Clipboard::GetExecutionContext() const {
return GetSupplementable()->DomWindow();
}
// static
String Clipboard::ParseWebCustomFormat(const String& format) {
if (format.StartsWith(ui::kWebClipboardFormatPrefix)) {
String web_custom_format_suffix = format.Substring(
static_cast<unsigned>(std::strlen(ui::kWebClipboardFormatPrefix)));
std::string web_top_level_mime_type;
std::string web_mime_sub_type;
if (net::ParseMimeTypeWithoutParameter(web_custom_format_suffix.Utf8(),
&web_top_level_mime_type,
&web_mime_sub_type)) {
return String::Format("%s/%s", web_top_level_mime_type.c_str(),
web_mime_sub_type.c_str());
}
}
return g_empty_string;
}
void Clipboard::Trace(Visitor* visitor) const {
EventTarget::Trace(visitor);
Supplement<Navigator>::Trace(visitor);
visitor->Trace(clipboard_change_event_controller_);
}
} // namespace blink
|
