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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 "v8/include/v8-debug.h" | 13 #include "v8/include/v8-debug.h" |
| 14 #include "v8/include/v8.h" | 14 #include "v8/include/v8.h" |
| 15 #include "wtf/RefCounted.h" | 15 #include "wtf/RefCounted.h" |
| 16 | 16 |
| 17 namespace blink { | 17 namespace blink { |
| 18 | 18 |
| 19 class LocalDOMWindow; | |
| 20 class DOMWrapperWorld; | 19 class DOMWrapperWorld; |
| 21 class ExecutionContext; | 20 class ExecutionContext; |
| 22 class ScriptValue; | 21 class ScriptValue; |
| 23 | 22 |
| 24 // ScriptState is an abstraction class that holds all information about script | 23 // ScriptState is an abstraction class that holds all information about script |
| 25 // exectuion (e.g., v8::Isolate, v8::Context, DOMWrapperWorld, ExecutionContext | 24 // exectuion (e.g., v8::Isolate, v8::Context, DOMWrapperWorld, ExecutionContext |
| 26 // etc). If you need any info about the script execution, you're expected to | 25 // etc). If you need any info about the script execution, you're expected to |
| 27 // pass around ScriptState in the code base. ScriptState is in a 1:1 | 26 // pass around ScriptState in the code base. ScriptState is in a 1:1 |
| 28 // relationship with v8::Context. | 27 // relationship with v8::Context. |
| 29 // | 28 // |
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| 130 v8ContextPerContextDataIndex)); | 129 v8ContextPerContextDataIndex)); |
| 131 // ScriptState::from() must not be called for a context that does not have | 130 // ScriptState::from() must not be called for a context that does not have |
| 132 // valid embedder data in the embedder field. | 131 // valid embedder data in the embedder field. |
| 133 SECURITY_CHECK(scriptState); | 132 SECURITY_CHECK(scriptState); |
| 134 SECURITY_CHECK(scriptState->context() == context); | 133 SECURITY_CHECK(scriptState->context() == context); |
| 135 return scriptState; | 134 return scriptState; |
| 136 } | 135 } |
| 137 | 136 |
| 138 v8::Isolate* isolate() const { return m_isolate; } | 137 v8::Isolate* isolate() const { return m_isolate; } |
| 139 DOMWrapperWorld& world() const { return *m_world; } | 138 DOMWrapperWorld& world() const { return *m_world; } |
| 140 LocalDOMWindow* domWindow() const; | |
| 141 virtual ExecutionContext* getExecutionContext() const; | 139 virtual ExecutionContext* getExecutionContext() const; |
| 142 virtual void setExecutionContext(ExecutionContext*); | 140 virtual void setExecutionContext(ExecutionContext*); |
| 143 | 141 |
| 144 // This can return an empty handle if the v8::Context is gone. | 142 // This can return an empty handle if the v8::Context is gone. |
| 145 v8::Local<v8::Context> context() const { | 143 v8::Local<v8::Context> context() const { |
| 146 return m_context.newLocal(m_isolate); | 144 return m_context.newLocal(m_isolate); |
| 147 } | 145 } |
| 148 bool contextIsValid() const { | 146 bool contextIsValid() const { |
| 149 return !m_context.isEmpty() && m_perContextData; | 147 return !m_context.isEmpty() && m_perContextData; |
| 150 } | 148 } |
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| 199 } | 197 } |
| 200 | 198 |
| 201 private: | 199 private: |
| 202 RefPtr<ScriptState> m_scriptState; | 200 RefPtr<ScriptState> m_scriptState; |
| 203 ScopedPersistent<v8::Context> m_context; | 201 ScopedPersistent<v8::Context> m_context; |
| 204 }; | 202 }; |
| 205 | 203 |
| 206 } // namespace blink | 204 } // namespace blink |
| 207 | 205 |
| 208 #endif // ScriptState_h | 206 #endif // ScriptState_h |
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