// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef FXJS_JS_DEFINE_H_
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#define FXJS_JS_DEFINE_H_
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#include <vector>
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#include "fxjs/cjs_object.h"
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#include "fxjs/cjs_return.h"
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#include "fxjs/fxjs_v8.h"
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#include "fxjs/js_resources.h"
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double JS_GetDateTime();
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int JS_GetYearFromTime(double dt);
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int JS_GetMonthFromTime(double dt);
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int JS_GetDayFromTime(double dt);
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int JS_GetHourFromTime(double dt);
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int JS_GetMinFromTime(double dt);
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int JS_GetSecFromTime(double dt);
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double JS_LocalTime(double d);
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double JS_DateParse(const WideString& str);
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double JS_MakeDay(int nYear, int nMonth, int nDay);
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double JS_MakeTime(int nHour, int nMin, int nSec, int nMs);
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double JS_MakeDate(double day, double time);
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// Some JS methods have the bizarre convention that they may also be called
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// with a single argument which is an object containing the actual arguments
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// as its properties. The varying arguments to this method are the property
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// names as wchar_t string literals corresponding to each positional argument.
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// The result will always contain |nKeywords| value, with unspecified ones
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// being set to type VT_unknown.
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std::vector<v8::Local<v8::Value>> ExpandKeywordParams(
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CJS_Runtime* pRuntime,
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const std::vector<v8::Local<v8::Value>>& originals,
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size_t nKeywords,
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...);
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// All JS classes have a name, an object defintion ID, and the ability to
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// register themselves with FXJS_V8. We never make a BASE class on its own
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// because it can't really do anything.
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// Rich JS classes provide constants, methods, properties, and the ability
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// to construct native object state.
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template <class T, class A>
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static void JSConstructor(CFXJS_Engine* pEngine, v8::Local<v8::Object> obj) {
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CJS_Object* pObj = new T(obj);
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pObj->SetEmbedObject(new A(pObj));
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pEngine->SetObjectPrivate(obj, pObj);
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pObj->InitInstance(static_cast<CJS_Runtime*>(pEngine));
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}
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template <class T>
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static void JSDestructor(CFXJS_Engine* pEngine, v8::Local<v8::Object> obj) {
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delete static_cast<T*>(pEngine->GetObjectPrivate(obj));
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}
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template <class C, CJS_Return (C::*M)(CJS_Runtime*)>
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void JSPropGetter(const char* prop_name_string,
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const char* class_name_string,
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v8::Local<v8::String> property,
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const v8::PropertyCallbackInfo<v8::Value>& info) {
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CJS_Runtime* pRuntime =
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CJS_Runtime::CurrentRuntimeFromIsolate(info.GetIsolate());
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if (!pRuntime)
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return;
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CJS_Object* pJSObj =
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static_cast<CJS_Object*>(pRuntime->GetObjectPrivate(info.Holder()));
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if (!pJSObj)
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return;
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C* pObj = reinterpret_cast<C*>(pJSObj->GetEmbedObject());
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CJS_Return result = (pObj->*M)(pRuntime);
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if (result.HasError()) {
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pRuntime->Error(JSFormatErrorString(class_name_string, prop_name_string,
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result.Error()));
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return;
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}
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if (result.HasReturn())
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info.GetReturnValue().Set(result.Return());
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}
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template <class C, CJS_Return (C::*M)(CJS_Runtime*, v8::Local<v8::Value>)>
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void JSPropSetter(const char* prop_name_string,
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const char* class_name_string,
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v8::Local<v8::String> property,
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v8::Local<v8::Value> value,
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const v8::PropertyCallbackInfo<void>& info) {
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CJS_Runtime* pRuntime =
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CJS_Runtime::CurrentRuntimeFromIsolate(info.GetIsolate());
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if (!pRuntime)
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return;
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CJS_Object* pJSObj =
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static_cast<CJS_Object*>(pRuntime->GetObjectPrivate(info.Holder()));
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if (!pJSObj)
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return;
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C* pObj = reinterpret_cast<C*>(pJSObj->GetEmbedObject());
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CJS_Return result = (pObj->*M)(pRuntime, value);
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if (result.HasError()) {
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pRuntime->Error(JSFormatErrorString(class_name_string, prop_name_string,
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result.Error()));
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}
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}
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template <class C,
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CJS_Return (C::*M)(CJS_Runtime*,
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const std::vector<v8::Local<v8::Value>>&)>
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void JSMethod(const char* method_name_string,
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const char* class_name_string,
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const v8::FunctionCallbackInfo<v8::Value>& info) {
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CJS_Runtime* pRuntime =
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CJS_Runtime::CurrentRuntimeFromIsolate(info.GetIsolate());
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if (!pRuntime)
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return;
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CJS_Object* pJSObj =
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static_cast<CJS_Object*>(pRuntime->GetObjectPrivate(info.Holder()));
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if (!pJSObj)
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return;
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std::vector<v8::Local<v8::Value>> parameters;
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for (unsigned int i = 0; i < (unsigned int)info.Length(); i++)
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parameters.push_back(info[i]);
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C* pObj = reinterpret_cast<C*>(pJSObj->GetEmbedObject());
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CJS_Return result = (pObj->*M)(pRuntime, parameters);
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if (result.HasError()) {
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pRuntime->Error(JSFormatErrorString(class_name_string, method_name_string,
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result.Error()));
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return;
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}
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if (result.HasReturn())
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info.GetReturnValue().Set(result.Return());
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}
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#define JS_STATIC_PROP(err_name, prop_name, class_name) \
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static void get_##prop_name##_static( \
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v8::Local<v8::String> property, \
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const v8::PropertyCallbackInfo<v8::Value>& info) { \
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JSPropGetter<class_name, &class_name::get_##prop_name>( \
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#err_name, #class_name, property, info); \
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} \
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static void set_##prop_name##_static( \
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v8::Local<v8::String> property, v8::Local<v8::Value> value, \
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const v8::PropertyCallbackInfo<void>& info) { \
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JSPropSetter<class_name, &class_name::set_##prop_name>( \
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#err_name, #class_name, property, value, info); \
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}
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#define JS_STATIC_METHOD(method_name, class_name) \
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static void method_name##_static( \
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const v8::FunctionCallbackInfo<v8::Value>& info) { \
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JSMethod<class_name, &class_name::method_name>(#method_name, #class_name, \
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info); \
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}
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#endif // FXJS_JS_DEFINE_H_
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