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// Copyright (c) 2009 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.
// Additional set of macros for the JS RPC.
#ifndef WEBKIT_GLUE_DEVTOOLS_DEVTOOLS_RPC_JS_H_
#define WEBKIT_GLUE_DEVTOOLS_DEVTOOLS_RPC_JS_H_
#include <string>
#include <wtf/OwnPtr.h>
#include "base/basictypes.h"
#include "base/logging.h"
#include "base/values.h"
#include "webkit/glue/cpp_bound_class.h"
#include "webkit/glue/devtools/devtools_rpc.h"
#include "webkit/glue/glue_util.h"
#include "webkit/glue/webframe.h"
///////////////////////////////////////////////////////
// JS RPC binds and stubs
template<typename T>
struct RpcJsTypeTrait {
};
template<>
struct RpcJsTypeTrait<bool> {
static bool Pass(const CppVariant& var) {
return var.ToBoolean();
}
};
template<>
struct RpcJsTypeTrait<int> {
static int Pass(const CppVariant& var) {
return var.ToInt32();
}
};
template<>
struct RpcJsTypeTrait<String> {
static String Pass(const CppVariant& var) {
return webkit_glue::StdStringToString(var.ToString());
}
};
template<>
struct RpcJsTypeTrait<std::string> {
static std::string Pass(const CppVariant& var) {
return var.ToString();
}
};
#define TOOLS_RPC_JS_BIND_METHOD0(Method) \
BindMethod(#Method, &OCLASS::Js##Method);
#define TOOLS_RPC_JS_BIND_METHOD1(Method, T1) \
BindMethod(#Method, &OCLASS::Js##Method);
#define TOOLS_RPC_JS_BIND_METHOD2(Method, T1, T2) \
BindMethod(#Method, &OCLASS::Js##Method);
#define TOOLS_RPC_JS_BIND_METHOD3(Method, T1, T2, T3) \
BindMethod(#Method, &OCLASS::Js##Method);
#define TOOLS_RPC_JS_STUB_METHOD0(Method) \
void Js##Method(const CppArgumentList& args, CppVariant* result) { \
InvokeAsync(RpcTypeToNumber<CLASS>::number, METHOD_##Method); \
result->SetNull(); \
}
#define TOOLS_RPC_JS_STUB_METHOD1(Method, T1) \
void Js##Method(const CppArgumentList& args, CppVariant* result) { \
T1 t1 = RpcJsTypeTrait<T1>::Pass(args[0]); \
InvokeAsync(RpcTypeToNumber<CLASS>::number, METHOD_##Method, &t1); \
result->SetNull(); \
}
#define TOOLS_RPC_JS_STUB_METHOD2(Method, T1, T2) \
void Js##Method(const CppArgumentList& args, CppVariant* result) { \
T1 t1 = RpcJsTypeTrait<T1>::Pass(args[0]); \
T2 t2 = RpcJsTypeTrait<T2>::Pass(args[1]); \
InvokeAsync(RpcTypeToNumber<CLASS>::number, METHOD_##Method, &t1, &t2); \
result->SetNull(); \
}
#define TOOLS_RPC_JS_STUB_METHOD3(Method, T1, T2, T3) \
void Js##Method(const CppArgumentList& args, CppVariant* result) { \
T1 t1 = RpcJsTypeTrait<T1>::Pass(args[0]); \
T2 t2 = RpcJsTypeTrait<T2>::Pass(args[1]); \
T3 t3 = RpcJsTypeTrait<T3>::Pass(args[2]); \
InvokeAsync(RpcTypeToNumber<CLASS>::number, METHOD_##Method, &t1, &t2, \
&t3); \
result->SetNull(); \
}
///////////////////////////////////////////////////////
// JS RPC dispatch method implementations
#define TOOLS_RPC_JS_DISPATCH0(Method) \
case CLASS::METHOD_##Method: { \
*expr = StringPrintf("%s.%s()", js_obj.c_str(), #Method); \
return true; \
}
#define TOOLS_RPC_JS_DISPATCH1(Method, T1) \
case CLASS::METHOD_##Method: { \
Value* t1; \
message.Get(2, &t1); \
*expr = StringPrintf("%s.%s(%s)", js_obj.c_str(), #Method, \
DevToolsRpc::Serialize(*t1).c_str()); \
return true; \
}
#define TOOLS_RPC_JS_DISPATCH2(Method, T1, T2) \
case CLASS::METHOD_##Method: { \
Value* t1; \
Value* t2; \
message.Get(2, &t1); \
message.Get(3, &t2); \
*expr = StringPrintf("%s.%s(%s, %s)", js_obj.c_str(), #Method, \
DevToolsRpc::Serialize(*t1).c_str(), \
DevToolsRpc::Serialize(*t2).c_str()); \
return true; \
}
#define TOOLS_RPC_JS_DISPATCH3(Method, T1, T2, T3) \
case CLASS::METHOD_##Method: { \
Value* t1; \
Value* t2; \
Value* t3; \
message.Get(2, &t1); \
message.Get(3, &t2); \
message.Get(4, &t3); \
*expr = StringPrintf("%s.%s(%s, %s, %s)", js_obj.c_str(), #Method, \
DevToolsRpc::Serialize(*t1).c_str(), \
DevToolsRpc::Serialize(*t2).c_str(), \
DevToolsRpc::Serialize(*t3).c_str()); \
return true; \
}
#define DEFINE_RPC_JS_DISPATCH(Class, STRUCT) \
class Js##Class##Dispatch { \
public: \
explicit Js##Class##Dispatch(const std::wstring& classname) \
: js_obj(WideToUTF8(classname)) {} \
virtual ~Js##Class##Dispatch() {} \
\
bool Dispatch(const ListValue& message, std::string* expr) { \
int class_id; \
message.GetInteger(0, &class_id); \
if (class_id != RpcTypeToNumber<Class>::number) { \
return false; \
} \
int method; \
message.GetInteger(1, &method); \
typedef Class CLASS; \
switch (method) { \
STRUCT( \
TOOLS_RPC_JS_DISPATCH0, \
TOOLS_RPC_JS_DISPATCH1, \
TOOLS_RPC_JS_DISPATCH2, \
TOOLS_RPC_JS_DISPATCH3) \
default: return false; \
} \
} \
private: \
std::string js_obj; \
DISALLOW_COPY_AND_ASSIGN(Js##Class##Dispatch); \
};
///////////////////////////////////////////////////////
// JS RPC main obj macro
#define DEFINE_RPC_JS_BOUND_OBJ(Class, STRUCT, DClass, DELEGATE_STRUCT) \
DEFINE_RPC_JS_DISPATCH(DClass, DELEGATE_STRUCT) \
class Js##Class##BoundObj : public Class##Stub, \
public CppBoundClass, \
public Js##DClass##Dispatch { \
public: \
Js##Class##BoundObj(Delegate* rpc_delegate, WebFrame* frame, \
const std::wstring& classname) \
: Class##Stub(rpc_delegate), \
Js##DClass##Dispatch(classname) { \
BindToJavascript(frame, classname); \
STRUCT( \
TOOLS_RPC_JS_BIND_METHOD0, \
TOOLS_RPC_JS_BIND_METHOD1, \
TOOLS_RPC_JS_BIND_METHOD2, \
TOOLS_RPC_JS_BIND_METHOD3) \
} \
virtual ~Js##Class##BoundObj() {} \
typedef Js##Class##BoundObj OCLASS; \
STRUCT( \
TOOLS_RPC_JS_STUB_METHOD0, \
TOOLS_RPC_JS_STUB_METHOD1, \
TOOLS_RPC_JS_STUB_METHOD2, \
TOOLS_RPC_JS_STUB_METHOD3) \
private: \
DISALLOW_COPY_AND_ASSIGN(Js##Class##BoundObj); \
};
#endif // WEBKIT_GLUE_DEVTOOLS_DEVTOOLS_RPC_JS_H_
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