James Robinson | a976313 | 2014-10-06 11:18:13 -0700 | [diff] [blame] | 1 | // Copyright 2013 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 | #ifndef GIN_PER_CONTEXT_DATA_H_ |
| 6 | #define GIN_PER_CONTEXT_DATA_H_ |
| 7 | |
| 8 | #include "base/basictypes.h" |
| 9 | #include "base/supports_user_data.h" |
| 10 | #include "gin/gin_export.h" |
| 11 | #include "v8/include/v8.h" |
| 12 | |
| 13 | namespace gin { |
| 14 | |
| 15 | class ContextHolder; |
| 16 | class Runner; |
| 17 | |
| 18 | // There is one instance of PerContextData per v8::Context managed by Gin. This |
| 19 | // class stores all the Gin-related data that varies per context. Arbitrary data |
| 20 | // can be associated with this class by way of the SupportsUserData methods. |
| 21 | // Instances of this class (and any associated user data) are destroyed before |
| 22 | // the associated v8::Context. |
| 23 | class GIN_EXPORT PerContextData : public base::SupportsUserData { |
| 24 | public: |
| 25 | PerContextData(ContextHolder* context_holder, |
| 26 | v8::Handle<v8::Context> context); |
James Robinson | 30d547e | 2014-10-23 18:20:06 -0700 | [diff] [blame] | 27 | ~PerContextData() override; |
James Robinson | a976313 | 2014-10-06 11:18:13 -0700 | [diff] [blame] | 28 | |
| 29 | // Can return NULL after the ContextHolder has detached from context. |
| 30 | static PerContextData* From(v8::Handle<v8::Context> context); |
| 31 | |
| 32 | // The Runner associated with this context. To execute script in this context, |
| 33 | // please use the appropriate API on Runner. |
| 34 | Runner* runner() const { return runner_; } |
| 35 | void set_runner(Runner* runner) { runner_ = runner; } |
| 36 | |
| 37 | ContextHolder* context_holder() { return context_holder_; } |
| 38 | |
| 39 | private: |
| 40 | ContextHolder* context_holder_; |
| 41 | Runner* runner_; |
| 42 | |
| 43 | DISALLOW_COPY_AND_ASSIGN(PerContextData); |
| 44 | }; |
| 45 | |
| 46 | } // namespace gin |
| 47 | |
| 48 | #endif // GIN_PER_CONTEXT_DATA_H_ |