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Side by Side Diff: mojo/edk/js/handle.h

Issue 1676913002: [mojo] Delete third_party/mojo (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: let's try that again Created 4 years, 10 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 MOJO_EDK_JS_HANDLE_H_ 5 #ifndef MOJO_EDK_JS_HANDLE_H_
6 #define MOJO_EDK_JS_HANDLE_H_ 6 #define MOJO_EDK_JS_HANDLE_H_
7 7
8 #include <stdint.h> 8 #include <stdint.h>
9 9
10 #include "base/observer_list.h" 10 #include "base/observer_list.h"
11 #include "gin/converter.h" 11 #include "gin/converter.h"
12 #include "gin/handle.h" 12 #include "gin/handle.h"
13 #include "gin/wrappable.h" 13 #include "gin/wrappable.h"
14 #include "mojo/public/cpp/system/core.h" 14 #include "mojo/public/cpp/system/core.h"
15 15
16 namespace mojo { 16 namespace mojo {
17 namespace edk { 17 namespace edk {
18 namespace js {
19
18 class HandleCloseObserver; 20 class HandleCloseObserver;
19 21
20 // Wrapper for mojo Handles exposed to JavaScript. This ensures the Handle 22 // Wrapper for mojo Handles exposed to JavaScript. This ensures the Handle
21 // is Closed when its JS object is garbage collected. 23 // is Closed when its JS object is garbage collected.
22 class HandleWrapper : public gin::Wrappable<HandleWrapper> { 24 class HandleWrapper : public gin::Wrappable<HandleWrapper> {
23 public: 25 public:
24 static gin::WrapperInfo kWrapperInfo; 26 static gin::WrapperInfo kWrapperInfo;
25 27
26 static gin::Handle<HandleWrapper> Create(v8::Isolate* isolate, 28 static gin::Handle<HandleWrapper> Create(v8::Isolate* isolate,
27 MojoHandle handle) { 29 MojoHandle handle) {
28 return gin::CreateHandle(isolate, new HandleWrapper(handle)); 30 return gin::CreateHandle(isolate, new HandleWrapper(handle));
29 } 31 }
30 32
31 mojo::Handle get() const { return handle_.get(); } 33 mojo::Handle get() const { return handle_.get(); }
32 mojo::Handle release() { return handle_.release(); } 34 mojo::Handle release() { return handle_.release(); }
33 void Close(); 35 void Close();
34 36
35 void AddCloseObserver(HandleCloseObserver* observer); 37 void AddCloseObserver(HandleCloseObserver* observer);
36 void RemoveCloseObserver(HandleCloseObserver* observer); 38 void RemoveCloseObserver(HandleCloseObserver* observer);
37 39
38 protected: 40 protected:
39 HandleWrapper(MojoHandle handle); 41 HandleWrapper(MojoHandle handle);
40 ~HandleWrapper() override; 42 ~HandleWrapper() override;
41 void NotifyCloseObservers(); 43 void NotifyCloseObservers();
42 44
43 mojo::ScopedHandle handle_; 45 mojo::ScopedHandle handle_;
44 base::ObserverList<HandleCloseObserver> close_observers_; 46 base::ObserverList<HandleCloseObserver> close_observers_;
45 }; 47 };
46 48
49 } // namespace js
47 } // namespace edk 50 } // namespace edk
48 } // namespace mojo 51 } // namespace mojo
49 52
50 namespace gin { 53 namespace gin {
51 54
52 // Note: It's important to use this converter rather than the one for 55 // Note: It's important to use this converter rather than the one for
53 // MojoHandle, since that will do a simple int32_t conversion. It's unfortunate 56 // MojoHandle, since that will do a simple int32_t conversion. It's unfortunate
54 // there's no way to prevent against accidental use. 57 // there's no way to prevent against accidental use.
55 // TODO(mpcomplete): define converters for all Handle subtypes. 58 // TODO(mpcomplete): define converters for all Handle subtypes.
56 template<> 59 template<>
57 struct Converter<mojo::Handle> { 60 struct Converter<mojo::Handle> {
58 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, 61 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
59 const mojo::Handle& val); 62 const mojo::Handle& val);
60 static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val, 63 static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val,
61 mojo::Handle* out); 64 mojo::Handle* out);
62 }; 65 };
63 66
64 template<> 67 template<>
65 struct Converter<mojo::MessagePipeHandle> { 68 struct Converter<mojo::MessagePipeHandle> {
66 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, 69 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
67 mojo::MessagePipeHandle val); 70 mojo::MessagePipeHandle val);
68 static bool FromV8(v8::Isolate* isolate, 71 static bool FromV8(v8::Isolate* isolate,
69 v8::Handle<v8::Value> val, 72 v8::Handle<v8::Value> val,
70 mojo::MessagePipeHandle* out); 73 mojo::MessagePipeHandle* out);
71 }; 74 };
72 75
73 // We need to specialize the normal gin::Handle converter in order to handle 76 // We need to specialize the normal gin::Handle converter in order to handle
74 // converting |null| to a wrapper for an empty mojo::Handle. 77 // converting |null| to a wrapper for an empty mojo::Handle.
75 template<> 78 template <>
76 struct Converter<gin::Handle<mojo::edk::HandleWrapper> > { 79 struct Converter<gin::Handle<mojo::edk::js::HandleWrapper>> {
77 static v8::Handle<v8::Value> ToV8( 80 static v8::Handle<v8::Value> ToV8(
78 v8::Isolate* isolate, 81 v8::Isolate* isolate,
79 const gin::Handle<mojo::edk::HandleWrapper>& val) { 82 const gin::Handle<mojo::edk::js::HandleWrapper>& val) {
80 return val.ToV8(); 83 return val.ToV8();
81 } 84 }
82 85
83 static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val, 86 static bool FromV8(v8::Isolate* isolate,
84 gin::Handle<mojo::edk::HandleWrapper>* out) { 87 v8::Handle<v8::Value> val,
88 gin::Handle<mojo::edk::js::HandleWrapper>* out) {
85 if (val->IsNull()) { 89 if (val->IsNull()) {
86 *out = mojo::edk::HandleWrapper::Create(isolate, MOJO_HANDLE_INVALID); 90 *out = mojo::edk::js::HandleWrapper::Create(isolate, MOJO_HANDLE_INVALID);
87 return true; 91 return true;
88 } 92 }
89 93
90 mojo::edk::HandleWrapper* object = NULL; 94 mojo::edk::js::HandleWrapper* object = NULL;
91 if (!Converter<mojo::edk::HandleWrapper*>::FromV8(isolate, val, &object)) { 95 if (!Converter<mojo::edk::js::HandleWrapper*>::FromV8(isolate, val,
96 &object)) {
92 return false; 97 return false;
93 } 98 }
94 *out = gin::Handle<mojo::edk::HandleWrapper>(val, object); 99 *out = gin::Handle<mojo::edk::js::HandleWrapper>(val, object);
95 return true; 100 return true;
96 } 101 }
97 }; 102 };
98 103
99 } // namespace gin 104 } // namespace gin
100 105
101 #endif // MOJO_EDK_JS_HANDLE_H_ 106 #endif // MOJO_EDK_JS_HANDLE_H_
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