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1 // Copyright 2017 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "modules/keyboard_lock/NavigatorKeyboardLock.h" | |
6 | |
7 #include "bindings/core/v8/ScriptPromise.h" | |
8 #include "bindings/core/v8/ScriptPromiseResolver.h" | |
9 #include "bindings/core/v8/V8Binding.h" | |
10 #include "core/frame/LocalFrame.h" | |
11 #include "platform/heap/Persistent.h" | |
12 #include "platform/wtf/Assertions.h" | |
13 #include "platform/wtf/Functional.h" | |
14 #include "public/platform/InterfaceProvider.h" | |
15 | |
16 namespace blink { | |
17 | |
18 NavigatorKeyboardLock::NavigatorKeyboardLock(Navigator& navigator) | |
19 : Supplement<Navigator>(navigator) {} | |
20 | |
21 NavigatorKeyboardLock& NavigatorKeyboardLock::From(Navigator& navigator) { | |
22 NavigatorKeyboardLock* supplement = static_cast<NavigatorKeyboardLock*>( | |
23 Supplement<Navigator>::From(navigator, SupplementName())); | |
24 if (!supplement) { | |
25 supplement = new NavigatorKeyboardLock(navigator); | |
26 ProvideTo(navigator, SupplementName(), supplement); | |
27 } | |
28 return *supplement; | |
29 } | |
30 | |
31 // static | |
32 ScriptPromise NavigatorKeyboardLock::requestKeyLock( | |
33 ScriptState* state, | |
34 Navigator& navigator, | |
35 const Vector<String>& keycodes) { | |
36 return NavigatorKeyboardLock::From(navigator).requestKeyLock(state, keycodes); | |
37 } | |
38 | |
39 // static | |
40 ScriptPromise NavigatorKeyboardLock::requestKeyLock(ScriptState* state, | |
41 Navigator& navigator) { | |
42 return NavigatorKeyboardLock::requestKeyLock(state, navigator, | |
43 Vector<String>()); | |
44 } | |
45 | |
46 ScriptPromise NavigatorKeyboardLock::requestKeyLock( | |
47 ScriptState* state, | |
48 const Vector<String>& keycodes) { | |
49 DCHECK(state); | |
50 if (request_keylock_resolver_) { | |
51 return ScriptPromise::Reject( | |
52 state, V8String(state->GetIsolate(), | |
53 "Last requestKeyLock() has not finished yet.")); | |
54 } | |
55 | |
56 String error_message; | |
57 if (!EnsureServiceConnected(&error_message)) { | |
58 // TODO(zijiehe): Reject with a DOMException once it has been defined in the | |
59 // spec. | |
60 return ScriptPromise::Reject(state, | |
61 V8String(state->GetIsolate(), error_message)); | |
62 } | |
63 | |
64 request_keylock_resolver_ = ScriptPromiseResolver::Create(state); | |
65 service_->RequestKeyLock( | |
66 keycodes, | |
67 ConvertToBaseCallback(WTF::Bind( | |
68 &NavigatorKeyboardLock::LockRequestFinished, WrapPersistent(this)))); | |
69 return request_keylock_resolver_->Promise(); | |
70 } | |
71 | |
72 void NavigatorKeyboardLock::cancelKeyLock() { | |
73 if (!EnsureServiceConnected(nullptr)) | |
74 return; | |
75 | |
76 service_->CancelKeyLock(); | |
77 } | |
78 | |
79 // static | |
80 void NavigatorKeyboardLock::cancelKeyLock(Navigator& navigator) { | |
81 NavigatorKeyboardLock::From(navigator).cancelKeyLock(); | |
82 } | |
83 | |
84 bool NavigatorKeyboardLock::EnsureServiceConnected(String* error_message) { | |
85 if (!service_) { | |
86 LocalFrame* frame = GetSupplementable()->GetFrame(); | |
87 if (!frame) { | |
88 if (error_message) { | |
89 *error_message = String::FromUTF8("Current frame is detached."); | |
dcheng
2017/04/17 23:07:52
Nit: I think it's relatively rare to see FromUTF8(
Hzj_jie
2017/04/18 02:26:08
Done.
| |
90 } | |
91 return false; | |
92 } | |
93 frame->GetInterfaceProvider()->GetInterface(mojo::MakeRequest(&service_)); | |
94 } | |
95 | |
96 if (!service_.get()) { | |
97 if (error_message) { | |
98 *error_message = String::FromUTF8("Browser is not connecting."); | |
99 } | |
100 return false; | |
101 } | |
102 | |
103 return true; | |
104 } | |
105 | |
106 void NavigatorKeyboardLock::LockRequestFinished(bool allowed, | |
107 const String& reason) { | |
108 DCHECK(request_keylock_resolver_); | |
109 // TODO(zijiehe): Reject with a DOMException once it has been defined in the | |
110 // spec. | |
111 if (allowed) | |
112 request_keylock_resolver_->Resolve(); | |
113 else | |
114 request_keylock_resolver_->Reject(reason); | |
115 request_keylock_resolver_ = nullptr; | |
116 } | |
117 | |
118 // static | |
119 const char* NavigatorKeyboardLock::SupplementName() { | |
120 return "NavigatorKeyboardLock"; | |
121 } | |
122 | |
123 DEFINE_TRACE(NavigatorKeyboardLock) { | |
124 visitor->Trace(request_keylock_resolver_); | |
125 Supplement<Navigator>::Trace(visitor); | |
126 } | |
127 | |
128 } // namespace blink | |
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