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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 #ifndef ScriptState_h | 5 #ifndef ScriptState_h |
| 6 #define ScriptState_h | 6 #define ScriptState_h |
| 7 | 7 |
| 8 #include <memory> | 8 #include <memory> |
| 9 | 9 |
| 10 #include "bindings/core/v8/ScopedPersistent.h" | 10 #include "bindings/core/v8/ScopedPersistent.h" |
| 11 #include "bindings/core/v8/V8PerContextData.h" | 11 #include "bindings/core/v8/V8PerContextData.h" |
| 12 #include "core/CoreExport.h" | 12 #include "core/CoreExport.h" |
| 13 #include "platform/wtf/RefCounted.h" | 13 #include "platform/wtf/RefCounted.h" |
| 14 #include "v8/include/v8-debug.h" | 14 #include "v8/include/v8-debug.h" |
| 15 #include "v8/include/v8.h" | 15 #include "v8/include/v8.h" |
| 16 | 16 |
| 17 namespace blink { | 17 namespace blink { |
| 18 | 18 |
| 19 class DOMWrapperWorld; | 19 class DOMWrapperWorld; |
| 20 class ExecutionContext; | |
| 21 class ScriptValue; | 20 class ScriptValue; |
| 22 | 21 |
| 23 // ScriptState is an abstraction class that holds all information about script | 22 // ScriptState is an abstraction class that holds all information about script |
| 24 // exectuion (e.g., v8::Isolate, v8::Context, DOMWrapperWorld, ExecutionContext | 23 // exectuion (e.g., v8::Isolate, v8::Context, DOMWrapperWorld, ExecutionContext |
| 25 // etc). If you need any info about the script execution, you're expected to | 24 // etc). If you need any info about the script execution, you're expected to |
| 26 // pass around ScriptState in the code base. ScriptState is in a 1:1 | 25 // pass around ScriptState in the code base. ScriptState is in a 1:1 |
| 27 // relationship with v8::Context. | 26 // relationship with v8::Context. |
| 28 // | 27 // |
| 29 // When you need ScriptState, you can add [CallWith=ScriptState] to IDL files | 28 // When you need ScriptState, you can add [CallWith=ScriptState] to IDL files |
| 30 // and pass around ScriptState into a place where you need ScriptState. | 29 // and pass around ScriptState into a place where you need ScriptState. |
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| 129 kV8ContextPerContextDataIndex)); | 128 kV8ContextPerContextDataIndex)); |
| 130 // ScriptState::from() must not be called for a context that does not have | 129 // ScriptState::from() must not be called for a context that does not have |
| 131 // valid embedder data in the embedder field. | 130 // valid embedder data in the embedder field. |
| 132 SECURITY_CHECK(script_state); | 131 SECURITY_CHECK(script_state); |
| 133 SECURITY_CHECK(script_state->GetContext() == context); | 132 SECURITY_CHECK(script_state->GetContext() == context); |
| 134 return script_state; | 133 return script_state; |
| 135 } | 134 } |
| 136 | 135 |
| 137 v8::Isolate* GetIsolate() const { return isolate_; } | 136 v8::Isolate* GetIsolate() const { return isolate_; } |
| 138 DOMWrapperWorld& World() const { return *world_; } | 137 DOMWrapperWorld& World() const { return *world_; } |
| 139 // DEPRECATED: Use ExecutionContext::From instead | |
| 140 virtual ExecutionContext* GetExecutionContext() const; | |
| 141 | 138 |
| 142 // This can return an empty handle if the v8::Context is gone. | 139 // This can return an empty handle if the v8::Context is gone. |
| 143 v8::Local<v8::Context> GetContext() const { | 140 v8::Local<v8::Context> GetContext() const { |
| 144 return context_.NewLocal(isolate_); | 141 return context_.NewLocal(isolate_); |
| 145 } | 142 } |
| 146 bool ContextIsValid() const { | 143 bool ContextIsValid() const { |
| 147 return !context_.IsEmpty() && per_context_data_; | 144 return !context_.IsEmpty() && per_context_data_; |
| 148 } | 145 } |
| 149 void DetachGlobalObject(); | 146 void DetachGlobalObject(); |
| 150 void ClearContext() { return context_.Clear(); } | 147 void ClearContext() { return context_.Clear(); } |
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| 197 } | 194 } |
| 198 | 195 |
| 199 private: | 196 private: |
| 200 RefPtr<ScriptState> script_state_; | 197 RefPtr<ScriptState> script_state_; |
| 201 ScopedPersistent<v8::Context> context_; | 198 ScopedPersistent<v8::Context> context_; |
| 202 }; | 199 }; |
| 203 | 200 |
| 204 } // namespace blink | 201 } // namespace blink |
| 205 | 202 |
| 206 #endif // ScriptState_h | 203 #endif // ScriptState_h |
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