1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ppapi/cpp/dev/scriptable_object_deprecated.h"
#include "ppapi/c/dev/ppp_class_deprecated.h"
#include "ppapi/cpp/module.h"
#include "ppapi/cpp/var.h"
namespace pp {
namespace deprecated {
namespace {
// Allows converting an output param of a Var to an output param of a PP_Var
// for exceptions. The object is only copied if it is not void, which we
// take to mean an exception occurred.
class ExceptionConverter {
public:
ExceptionConverter(PP_Var* out) : out_(out) {
}
~ExceptionConverter() {
if (!exception_.is_undefined())
*out_ = exception_.Detach();
}
Var* Get() { return &exception_; }
private:
PP_Var* out_;
Var exception_;
};
// Used internally to convert a C-style array of PP_Var to a vector of Var.
void ArgListToVector(uint32_t argc, PP_Var* argv, std::vector<Var>* output) {
output->reserve(argc);
for (size_t i = 0; i < argc; i++)
output->push_back(Var(Var::DontManage(), argv[i]));
}
bool HasProperty(void* object, PP_Var name, PP_Var* exception) {
ExceptionConverter e(exception);
return static_cast<ScriptableObject*>(object)->HasProperty(
Var(Var::DontManage(), name), e.Get());
}
bool HasMethod(void* object, PP_Var name, PP_Var* exception) {
ExceptionConverter e(exception);
return static_cast<ScriptableObject*>(object)->HasMethod(
Var(Var::DontManage(), name), e.Get());
}
PP_Var GetProperty(void* object,
PP_Var name,
PP_Var* exception) {
ExceptionConverter e(exception);
return static_cast<ScriptableObject*>(object)->GetProperty(
Var(Var::DontManage(), name), e.Get()).Detach();
}
void GetAllPropertyNames(void* object,
uint32_t* property_count,
PP_Var** properties,
PP_Var* exception) {
ExceptionConverter e(exception);
std::vector<Var> props;
static_cast<ScriptableObject*>(object)->GetAllPropertyNames(&props, e.Get());
if (props.empty())
return;
*property_count = static_cast<uint32_t>(props.size());
*properties = static_cast<PP_Var*>(
Module::Get()->core()->MemAlloc(sizeof(PP_Var) * props.size()));
for (size_t i = 0; i < props.size(); ++i)
(*properties)[i] = props[i].Detach();
}
void SetProperty(void* object,
PP_Var name,
PP_Var value,
PP_Var* exception) {
ExceptionConverter e(exception);
static_cast<ScriptableObject*>(object)->SetProperty(
Var(Var::DontManage(), name), Var(Var::DontManage(), value), e.Get());
}
void RemoveProperty(void* object,
PP_Var name,
PP_Var* exception) {
ExceptionConverter e(exception);
static_cast<ScriptableObject*>(object)->RemoveProperty(
Var(Var::DontManage(), name), e.Get());
}
PP_Var Call(void* object,
PP_Var method_name,
uint32_t argc,
PP_Var* argv,
PP_Var* exception) {
ExceptionConverter e(exception);
std::vector<Var> args;
ArgListToVector(argc, argv, &args);
return static_cast<ScriptableObject*>(object)->Call(
Var(Var::DontManage(), method_name), args, e.Get()).Detach();
}
PP_Var Construct(void* object,
uint32_t argc,
PP_Var* argv,
PP_Var* exception) {
ExceptionConverter e(exception);
std::vector<Var> args;
ArgListToVector(argc, argv, &args);
return static_cast<ScriptableObject*>(object)->Construct(
args, e.Get()).Detach();
}
void Deallocate(void* object) {
delete static_cast<ScriptableObject*>(object);
}
PPP_Class_Deprecated plugin_class = {
&HasProperty,
&HasMethod,
&GetProperty,
&GetAllPropertyNames,
&SetProperty,
&RemoveProperty,
&Call,
&Construct,
&Deallocate
};
} // namespace
bool ScriptableObject::HasProperty(const Var& /*name*/, Var* /*exception*/) {
return false;
}
bool ScriptableObject::HasMethod(const Var& /*name*/, Var* /*exception*/) {
return false;
}
Var ScriptableObject::GetProperty(const Var& /*name*/, Var* exception) {
*exception = Var("Property does not exist on ScriptableObject");
return Var();
}
void ScriptableObject::GetAllPropertyNames(std::vector<Var>* /*properties*/,
Var* /*exception*/) {
}
void ScriptableObject::SetProperty(const Var& /*name*/,
const Var& /*value*/,
Var* exception) {
*exception = Var("Property can not be set on ScriptableObject");
}
void ScriptableObject::RemoveProperty(const Var& /*name*/,
Var* exception) {
*exception = Var(
"Property does does not exist to be removed in ScriptableObject");
}
Var ScriptableObject::Call(const Var& /*method_name*/,
const std::vector<Var>& /*args*/,
Var* exception) {
*exception = Var("Method does not exist to call in ScriptableObject");
return Var();
}
Var ScriptableObject::Construct(const std::vector<Var>& /*args*/,
Var* exception) {
*exception = Var("Constuct method does not exist in ScriptableObject");
return Var();
}
// static
const PPP_Class_Deprecated* ScriptableObject::GetClass() {
return &plugin_class;
}
} // namespace deprecated
} // namespace pp
|
