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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "modules/worklet/Worklet.h" | 5 #include "modules/worklet/Worklet.h" |
6 | 6 |
7 #include "bindings/core/v8/ScriptPromiseResolver.h" | |
8 #include "bindings/core/v8/ScriptSourceCode.h" | |
7 #include "bindings/core/v8/V8Binding.h" | 9 #include "bindings/core/v8/V8Binding.h" |
10 #include "bindings/core/v8/WorkerOrWorkletScriptController.h" | |
11 #include "core/dom/DOMException.h" | |
12 #include "core/dom/ExceptionCode.h" | |
8 | 13 |
9 namespace blink { | 14 namespace blink { |
10 | 15 |
11 // static | 16 // static |
12 Worklet* Worklet::create(ExecutionContext* executionContext) | 17 Worklet* Worklet::create(ExecutionContext* executionContext) |
13 { | 18 { |
14 return new Worklet(executionContext); | 19 Worklet* worklet = new Worklet(executionContext); |
20 worklet->suspendIfNeeded(); | |
21 return worklet; | |
15 } | 22 } |
16 | 23 |
17 Worklet::Worklet(ExecutionContext* executionContext) | 24 Worklet::Worklet(ExecutionContext* executionContext) |
18 : m_workletGlobalScope(WorkletGlobalScope::create(executionContext->url(), e xecutionContext->userAgent(), toIsolate(executionContext))) | 25 : ActiveDOMObject(executionContext) |
26 , m_workletGlobalScope(WorkletGlobalScope::create(executionContext->url(), e xecutionContext->userAgent(), executionContext->securityOrigin(), toIsolate(exec utionContext))) | |
19 { | 27 { |
20 } | 28 } |
21 | 29 |
30 ScriptPromise Worklet::import(ScriptState* scriptState, const String& url) | |
31 { | |
32 KURL scriptURL = executionContext()->completeURL(url); | |
33 if (!scriptURL.isValid()) { | |
34 return ScriptPromise::rejectWithDOMException(scriptState, DOMException:: create(SyntaxError, "'" + url + "' is not a valid URL.")); | |
35 } | |
36 | |
37 // TODO(ikilpatrick): Perform upfront CSP checks once we decide on a | |
38 // CSP-policy for worklets. | |
39 | |
40 ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState) ; | |
41 m_resolvers.append(resolver); | |
42 | |
43 ScriptPromise promise = resolver->promise(); | |
44 | |
45 // TODO(ikilpatrick): WorkerScriptLoader will need to be extended to allow | |
46 // module loading support. For now just fetch a 'classic' script. | |
47 m_scriptLoaders.append(WorkerScriptLoader::create()); | |
48 m_scriptLoaders.last()->loadAsynchronously(*executionContext(), scriptURL, D enyCrossOriginRequests, | |
49 bind(&Worklet::onResponse, this), | |
50 bind(&Worklet::onFinished, this, m_scriptLoaders.last().get(), resolver) ); | |
kinuko
2016/02/12 07:25:44
In some error cases onFinished could run before re
ikilpatrick
2016/02/12 22:59:57
Done.
| |
51 | |
52 return promise; | |
53 } | |
54 | |
55 void Worklet::onResponse() | |
56 { | |
57 // TODO(ikilpatrick): Add devtools instrumentation on worklet script | |
58 // resource loading. | |
59 } | |
60 | |
61 void Worklet::onFinished(WorkerScriptLoader* scriptLoader, ScriptPromiseResolver * resolver) | |
62 { | |
63 if (scriptLoader->failed()) { | |
64 resolver->reject(DOMException::create(NetworkError)); | |
65 } else { | |
66 m_workletGlobalScope->script()->evaluate(ScriptSourceCode(scriptLoader-> script(), scriptLoader->url())); | |
kinuko
2016/02/12 07:25:45
Should we catch error event here?
ikilpatrick
2016/02/12 22:59:57
Added note for the current thinking at the moment.
| |
67 resolver->resolve(); | |
kinuko
2016/02/12 07:25:45
Maybe check resolver->executionContext() || resolv
ikilpatrick
2016/02/12 22:59:57
Added guard for the moment.
| |
68 } | |
69 | |
70 size_t index = m_scriptLoaders.find(scriptLoader); | |
71 | |
72 ASSERT(index != kNotFound); | |
73 ASSERT(m_resolvers[index] == resolver); | |
74 | |
75 m_scriptLoaders.remove(index); | |
76 m_resolvers.remove(index); | |
77 } | |
78 | |
79 void Worklet::stop() | |
80 { | |
81 m_workletGlobalScope->script()->willScheduleExecutionTermination(); | |
82 | |
83 for (auto scriptLoader : m_scriptLoaders) { | |
84 scriptLoader->cancel(); | |
85 } | |
86 } | |
87 | |
88 bool Worklet::hasPendingActivity() const | |
89 { | |
90 return !m_scriptLoaders.isEmpty(); | |
91 } | |
92 | |
22 DEFINE_TRACE(Worklet) | 93 DEFINE_TRACE(Worklet) |
23 { | 94 { |
95 visitor->trace(m_resolvers); | |
24 visitor->trace(m_workletGlobalScope); | 96 visitor->trace(m_workletGlobalScope); |
97 ActiveDOMObject::trace(visitor); | |
25 } | 98 } |
26 | 99 |
27 } // namespace blink | 100 } // namespace blink |
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