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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 "core/dom/ModulePendingScript.h" |
| 6 |
| 7 #include "core/dom/ScriptLoader.h" |
| 8 #include "core/frame/LocalFrame.h" |
| 9 |
| 10 namespace blink { |
| 11 |
| 12 ModulePendingScriptTreeClient::ModulePendingScriptTreeClient() |
| 13 : module_script_(this, nullptr), pending_script_(this, nullptr) {} |
| 14 |
| 15 void ModulePendingScriptTreeClient::SetPendingScript( |
| 16 ModulePendingScript* pending_script) { |
| 17 DCHECK(!pending_script_); |
| 18 pending_script_ = pending_script; |
| 19 |
| 20 if (finished_) { |
| 21 pending_script_->NotifyModuleTreeLoadFinished(); |
| 22 } |
| 23 } |
| 24 |
| 25 void ModulePendingScriptTreeClient::NotifyModuleTreeLoadFinished( |
| 26 ModuleScript* module_script) { |
| 27 printf("notifyFinishedModuleTree!!! moduleScript: %p\n", module_script); |
| 28 DCHECK(!(module_script && module_script->InstantiationState() == |
| 29 ModuleInstantiationState::kUninstantiated)); |
| 30 DCHECK(!finished_); |
| 31 finished_ = true; |
| 32 module_script_ = module_script; |
| 33 |
| 34 if (pending_script_) |
| 35 pending_script_->NotifyModuleTreeLoadFinished(); |
| 36 } |
| 37 |
| 38 DEFINE_TRACE(ModulePendingScriptTreeClient) { |
| 39 visitor->Trace(module_script_); |
| 40 visitor->Trace(pending_script_); |
| 41 ModuleTreeClient::Trace(visitor); |
| 42 } |
| 43 |
| 44 DEFINE_TRACE_WRAPPERS(ModulePendingScriptTreeClient) { |
| 45 visitor->TraceWrappers(module_script_); |
| 46 } |
| 47 |
| 48 ModulePendingScript::ModulePendingScript(ScriptElementBase* element, |
| 49 ModulePendingScriptTreeClient* client) |
| 50 : PendingScript(element, TextPosition()), |
| 51 module_tree_client_(this, client) { |
| 52 CHECK(this->GetElement()); |
| 53 DCHECK(module_tree_client_); |
| 54 client->SetPendingScript(this); |
| 55 } |
| 56 |
| 57 ModulePendingScript::~ModulePendingScript() {} |
| 58 |
| 59 void ModulePendingScript::DisposeInternal() { |
| 60 module_tree_client_ = nullptr; |
| 61 } |
| 62 |
| 63 DEFINE_TRACE(ModulePendingScript) { |
| 64 visitor->Trace(module_tree_client_); |
| 65 PendingScript::Trace(visitor); |
| 66 } |
| 67 |
| 68 DEFINE_TRACE_WRAPPERS(ModulePendingScript) { |
| 69 visitor->TraceWrappers(module_tree_client_); |
| 70 PendingScript::TraceWrappers(visitor); |
| 71 } |
| 72 |
| 73 void ModulePendingScript::NotifyModuleTreeLoadFinished() { |
| 74 CHECK(!IsReady()); |
| 75 finished_ = true; |
| 76 |
| 77 if (Client()) |
| 78 Client()->PendingScriptFinished(this); |
| 79 } |
| 80 |
| 81 Script* ModulePendingScript::GetSource(const KURL& document_url, |
| 82 bool& error_occurred) const { |
| 83 CHECK(IsReady()); |
| 84 error_occurred = ErrorOccurred(); |
| 85 return GetModuleScript(); |
| 86 } |
| 87 |
| 88 bool ModulePendingScript::IsReady() const { |
| 89 return finished_; |
| 90 } |
| 91 |
| 92 bool ModulePendingScript::ErrorOccurred() const { |
| 93 CHECK(IsReady()); |
| 94 return !GetModuleScript(); |
| 95 } |
| 96 bool ModulePendingScript::WasCanceled() const { |
| 97 return false; |
| 98 } |
| 99 |
| 100 KURL ModulePendingScript::Url() const { |
| 101 return KURL(); |
| 102 } |
| 103 |
| 104 void ModulePendingScript::StartStreamingIfPossible(Document*, |
| 105 ScriptStreamer::Type) { |
| 106 return; |
| 107 } |
| 108 |
| 109 } // namespace blink |
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