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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 "core/workers/Worklet.h" | 5 #include "core/workers/Worklet.h" |
6 | 6 |
7 #include "bindings/core/v8/ScriptSourceCode.h" | |
8 #include "bindings/core/v8/V8Binding.h" | |
9 #include "core/dom/DOMException.h" | 7 #include "core/dom/DOMException.h" |
10 #include "core/dom/Document.h" | 8 #include "core/dom/Document.h" |
11 #include "core/dom/ExceptionCode.h" | |
12 #include "core/frame/LocalFrame.h" | 9 #include "core/frame/LocalFrame.h" |
13 #include "core/workers/WorkletGlobalScopeProxy.h" | 10 #include "core/workers/WorkletGlobalScopeProxy.h" |
14 #include "platform/wtf/WTF.h" | |
15 | 11 |
16 namespace blink { | 12 namespace blink { |
17 | 13 |
18 Worklet::Worklet(LocalFrame* frame) | 14 Worklet::Worklet(LocalFrame* frame) |
19 : ContextLifecycleObserver(frame->GetDocument()), frame_(frame) {} | 15 : ContextLifecycleObserver(frame->GetDocument()), frame_(frame) { |
20 | |
21 ScriptPromise Worklet::import(ScriptState* script_state, const String& url) { | |
22 DCHECK(IsMainThread()); | 16 DCHECK(IsMainThread()); |
23 if (!GetExecutionContext()) { | |
24 return ScriptPromise::RejectWithDOMException( | |
25 script_state, DOMException::Create(kInvalidStateError, | |
26 "This frame is already detached")); | |
27 } | |
28 | |
29 KURL script_url = GetExecutionContext()->CompleteURL(url); | |
30 if (!script_url.IsValid()) { | |
31 return ScriptPromise::RejectWithDOMException( | |
32 script_state, DOMException::Create( | |
33 kSyntaxError, "'" + url + "' is not a valid URL.")); | |
34 } | |
35 | |
36 if (!IsInitialized()) | |
37 Initialize(); | |
38 | |
39 ScriptPromiseResolver* resolver = ScriptPromiseResolver::Create(script_state); | |
40 ScriptPromise promise = resolver->Promise(); | |
41 | |
42 WorkletScriptLoader* script_loader = | |
43 WorkletScriptLoader::Create(frame_->GetDocument()->Fetcher(), this); | |
44 loader_and_resolvers_.Set(script_loader, resolver); | |
45 script_loader->FetchScript(script_url); | |
46 return promise; | |
47 } | |
48 | |
49 void Worklet::NotifyWorkletScriptLoadingFinished( | |
50 WorkletScriptLoader* script_loader, | |
51 const ScriptSourceCode& source_code) { | |
52 DCHECK(IsMainThread()); | |
53 ScriptPromiseResolver* resolver = loader_and_resolvers_.at(script_loader); | |
54 loader_and_resolvers_.erase(script_loader); | |
55 | |
56 if (!script_loader->WasScriptLoadSuccessful()) { | |
57 resolver->Reject(DOMException::Create(kNetworkError)); | |
58 return; | |
59 } | |
60 | |
61 GetWorkletGlobalScopeProxy()->EvaluateScript(source_code); | |
62 resolver->Resolve(); | |
63 } | 17 } |
64 | 18 |
65 void Worklet::ContextDestroyed(ExecutionContext*) { | 19 void Worklet::ContextDestroyed(ExecutionContext*) { |
66 DCHECK(IsMainThread()); | 20 DCHECK(IsMainThread()); |
67 if (IsInitialized()) | 21 if (IsInitialized()) |
68 GetWorkletGlobalScopeProxy()->TerminateWorkletGlobalScope(); | 22 GetWorkletGlobalScopeProxy()->TerminateWorkletGlobalScope(); |
69 for (const auto& script_loader : loader_and_resolvers_.Keys()) | |
70 script_loader->Cancel(); | |
71 loader_and_resolvers_.Clear(); | |
72 frame_ = nullptr; | 23 frame_ = nullptr; |
73 } | 24 } |
74 | 25 |
75 DEFINE_TRACE(Worklet) { | 26 DEFINE_TRACE(Worklet) { |
76 visitor->Trace(frame_); | 27 visitor->Trace(frame_); |
77 visitor->Trace(loader_and_resolvers_); | |
78 ContextLifecycleObserver::Trace(visitor); | 28 ContextLifecycleObserver::Trace(visitor); |
79 } | 29 } |
80 | 30 |
81 } // namespace blink | 31 } // namespace blink |
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