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Side by Side Diff: content/renderer/pepper/pepper_try_catch.h

Issue 512983004: Revert of Replace NPObject usage in ppapi with gin (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 3 months ago
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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 CONTENT_RENDERER_PEPPER_PEPPER_TRY_CATCH_H_ 5 #ifndef CONTENT_RENDERER_PEPPER_PEPPER_TRY_CATCH_H_
6 #define CONTENT_RENDERER_PEPPER_PEPPER_TRY_CATCH_H_ 6 #define CONTENT_RENDERER_PEPPER_PEPPER_TRY_CATCH_H_
7 7
8 #include "base/basictypes.h" 8 #include "base/basictypes.h"
9 #include "content/common/content_export.h" 9 #include "content/common/content_export.h"
10 #include "content/renderer/pepper/v8_var_converter.h"
11 #include "ppapi/c/pp_var.h" 10 #include "ppapi/c/pp_var.h"
12 #include "ppapi/shared_impl/scoped_pp_var.h" 11 #include "ppapi/shared_impl/scoped_pp_var.h"
13 #include "v8/include/v8.h" 12 #include "v8/include/v8.h"
14 13
15 namespace content { 14 namespace content {
16 15
17 class PepperPluginInstanceImpl; 16 class PepperPluginInstanceImpl;
18 17
19 // Base class for scripting TryCatch helpers. 18 // Base class for scripting TryCatch helpers.
20 class CONTENT_EXPORT PepperTryCatch { 19 class CONTENT_EXPORT PepperTryCatch {
21 public: 20 public:
22 PepperTryCatch(PepperPluginInstanceImpl* instance, 21 PepperTryCatch(PepperPluginInstanceImpl* instance,
23 V8VarConverter::AllowObjectVars convert_objects); 22 bool convert_objects);
24 virtual ~PepperTryCatch(); 23 virtual ~PepperTryCatch();
25 24
26 virtual void SetException(const char* message) = 0; 25 virtual void SetException(const char* message) = 0;
27 // Gets the plugin context. Virtual so it can be overriden for testing. 26 // Gets the plugin context. Virtual so it can be overriden for testing.
28 virtual v8::Handle<v8::Context> GetContext(); 27 virtual v8::Handle<v8::Context> GetContext();
29 28
30 // Convenience functions for doing conversions to/from V8 values and sets an 29 // Convenience functions for doing conversions to/from V8 values and sets an
31 // exception if there is an error in the conversion. 30 // exception if there is an error in the conversion.
32 v8::Handle<v8::Value> ToV8(PP_Var var); 31 v8::Handle<v8::Value> ToV8(PP_Var var);
33 ppapi::ScopedPPVar FromV8(v8::Handle<v8::Value> v8_value); 32 ppapi::ScopedPPVar FromV8(v8::Handle<v8::Value> v8_value);
34 33
35 protected: 34 protected:
36 PepperPluginInstanceImpl* instance_; 35 PepperPluginInstanceImpl* instance_;
37 36
38 // Whether To/FromV8 should convert object vars. If set to 37 // Whether To/FromV8 should convert object vars. If set to false, an exception
39 // kDisallowObjectVars, an exception should be set if they are encountered 38 // should be set if they are encountered during conversion.
40 // during conversion. 39 bool convert_objects_;
41 V8VarConverter::AllowObjectVars convert_objects_;
42 }; 40 };
43 41
44 // Catches var exceptions and emits a v8 exception. 42 // Catches var exceptions and emits a v8 exception.
45 class PepperTryCatchV8 : public PepperTryCatch { 43 class PepperTryCatchV8 : public PepperTryCatch {
46 public: 44 public:
47 PepperTryCatchV8(PepperPluginInstanceImpl* instance, 45 PepperTryCatchV8(PepperPluginInstanceImpl* instance,
48 V8VarConverter::AllowObjectVars convert_objects, 46 bool convert_objects,
49 v8::Isolate* isolate); 47 v8::Isolate* isolate);
50 virtual ~PepperTryCatchV8(); 48 virtual ~PepperTryCatchV8();
51 49
52 bool HasException(); 50 bool HasException();
53 bool ThrowException(); 51 bool ThrowException();
54 void ThrowException(const char* message); 52 void ThrowException(const char* message);
55 PP_Var* exception() { return &exception_; } 53 PP_Var* exception() { return &exception_; }
56 54
57 // PepperTryCatch 55 // PepperTryCatch
58 virtual void SetException(const char* message) OVERRIDE; 56 virtual void SetException(const char* message) OVERRIDE;
59 57
60 private: 58 private:
61 PP_Var exception_; 59 PP_Var exception_;
62 60
63 DISALLOW_COPY_AND_ASSIGN(PepperTryCatchV8); 61 DISALLOW_COPY_AND_ASSIGN(PepperTryCatchV8);
64 }; 62 };
65 63
66 // Catches v8 exceptions and emits a var exception. 64 // Catches v8 exceptions and emits a var exception.
67 class PepperTryCatchVar : public PepperTryCatch { 65 class PepperTryCatchVar : public PepperTryCatch {
68 public: 66 public:
69 // The PP_Var exception will be placed in |exception|. The user of this class 67 // The PP_Var exception will be placed in |exception|. The user of this class
70 // is responsible for managing the lifetime of the exception. It is valid to 68 // is responsible for managing the lifetime of the exception. It is valid to
71 // pass NULL for |exception| in which case no exception will be set. 69 // pass NULL for |exception| in which case no exception will be set.
72 PepperTryCatchVar(PepperPluginInstanceImpl* instance, 70 PepperTryCatchVar(PepperPluginInstanceImpl* instance,
71 bool convert_objects,
73 PP_Var* exception); 72 PP_Var* exception);
74 virtual ~PepperTryCatchVar(); 73 virtual ~PepperTryCatchVar();
75 74
76 bool HasException(); 75 bool HasException();
77 76
78 // PepperTryCatch 77 // PepperTryCatch
79 virtual void SetException(const char* message) OVERRIDE; 78 virtual void SetException(const char* message) OVERRIDE;
80 79
81 private: 80 private:
82 // Code which uses PepperTryCatchVar doesn't typically have a HandleScope, 81 // Code which uses PepperTryCatchVar doesn't typically have a HandleScope,
83 // make one for them. Note that this class is always allocated on the stack. 82 // make one for them. Note that this class is always allocated on the stack.
84 v8::HandleScope handle_scope_; 83 v8::HandleScope handle_scope_;
85 84
86 v8::TryCatch try_catch_; 85 v8::TryCatch try_catch_;
87 86
88 PP_Var* exception_; 87 PP_Var* exception_;
89 bool exception_is_set_; 88 bool exception_is_set_;
90 89
91 DISALLOW_COPY_AND_ASSIGN(PepperTryCatchVar); 90 DISALLOW_COPY_AND_ASSIGN(PepperTryCatchVar);
92 }; 91 };
93 92
94 } // namespace content 93 } // namespace content
95 94
96 #endif // CONTENT_RENDERER_PEPPER_PEPPER_TRY_CATCH_H_ 95 #endif // CONTENT_RENDERER_PEPPER_PEPPER_TRY_CATCH_H_
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