gin/interceptor.h

   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
   3 // found in the LICENSE file.
   4
   5 #ifndef GIN_INTERCEPTOR_H_
   6 #define GIN_INTERCEPTOR_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "gin/gin_export.h"
  13 #include "v8/include/v8.h"
  14
  15 namespace gin {
  16
  17 class WrappableBase;
  18
  19 // Base class for gin::Wrappable-derived classes that want to implement a
  20 // property interceptor.
  21 class GIN_EXPORT NamedPropertyInterceptor {
  22  public:
  23   NamedPropertyInterceptor(v8::Isolate* isolate, WrappableBase* base);
  24   virtual ~NamedPropertyInterceptor();
  25
  26   virtual v8::Local<v8::Value> GetNamedProperty(v8::Isolate* isolate,
  27                                                 const std::string& property);
  28   // Return true if the set was interecepted.
  29   virtual bool SetNamedProperty(v8::Isolate* isolate,
  30                                 const std::string& property,
  31                                 v8::Local<v8::Value> value);
  32   virtual std::vector<std::string> EnumerateNamedProperties(
  33       v8::Isolate* isolate);
  34
  35  private:
  36   v8::Isolate* isolate_;
  37   WrappableBase* base_;
  38
  39   DISALLOW_COPY_AND_ASSIGN(NamedPropertyInterceptor);
  40 };
  41
  42 class GIN_EXPORT IndexedPropertyInterceptor {
  43  public:
  44   IndexedPropertyInterceptor(v8::Isolate* isolate, WrappableBase* base);
  45   virtual ~IndexedPropertyInterceptor();
  46
  47   virtual v8::Local<v8::Value> GetIndexedProperty(v8::Isolate* isolate,
  48                                                   uint32_t index);
  49   // Return true if the set was interecepted.
  50   virtual bool SetIndexedProperty(v8::Isolate* isolate,
  51                                   uint32_t index,
  52                                   v8::Local<v8::Value> value);
  53   virtual std::vector<uint32_t> EnumerateIndexedProperties(
  54       v8::Isolate* isolate);
  55
  56  private:
  57   v8::Isolate* isolate_;
  58   WrappableBase* base_;
  59
  60   DISALLOW_COPY_AND_ASSIGN(IndexedPropertyInterceptor);
  61 };
  62
  63 }  // namespace gin
  64
  65 #endif  // GIN_INTERCEPTOR_H_