Return error information from pdfium to JS.

fpdfsdk/src/jsapi/fxjs_v8.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "../../../core/include/fxcrt/fx_basic.h"
 #include "../../../core/include/fxcrt/fx_ext.h" 
 #include "../../include/jsapi/fxjs_v8.h"
 #include "../../include/fsdk_define.h"
@@ skipping 439 matching lines @@
 
         for(int i=0; i<pArray->GetSize(); i++)
         {
                 CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(i);
                 if(FXSYS_wcscmp(pObjDef->objName, pObjName) == 0)
                         return i;
         }
         return -1;
 }
 
-void JS_Error(v8::Value * pError,const wchar_t * main,const wchar_t * sub)
+void JS_Error(v8::Isolate* isolate, const CFX_WideString& message)
 {
-
+    // Conversion from pdfium's wchar_t wide-strings to v8's uint16_t
+    // wide-strings isn't handled by v8, so use UTF8 as a common
+    // intermediate format.
+    CFX_ByteString utf8_message = message.UTF8Encode();
+    isolate->ThrowException(v8::String::NewFromUtf8(isolate,
+                                                    utf8_message.c_str()));
 }
 
 unsigned JS_CalcHash(const wchar_t* main, unsigned nLen)
 {
         return (unsigned)FX_HashCode_String_GetW(main, nLen);
 }
 
 unsigned JS_CalcHash(const wchar_t* main)
 {
         return (unsigned)FX_HashCode_String_GetW(main, FXSYS_wcslen(main));
@@ skipping 11 matching lines @@
                 return VALUE_NAME_DATE;
         if(pObj->IsObject())
                 return VALUE_NAME_OBJECT;
         if(pObj->IsNull())
                 return VALUE_NAME_NULL;
         if(pObj->IsUndefined())
                 return VALUE_NAME_UNDEFINED;
         return NULL;
 
 }
-const wchar_t*  JS_GetClassname(v8::Handle<v8::Object> pObj)
-{
-        return NULL;
-}
-
 void JS_SetPrivate(v8::Handle<v8::Object> pObj, void* p)
 {
         JS_SetPrivate(NULL, pObj, p);
 }
 
 void* JS_GetPrivate(v8::Handle<v8::Object> pObj)
 {
         return JS_GetPrivate(NULL,pObj);
 }
 
@@ skipping 525 matching lines @@
 {
         return d != d;
 }
 
 double JS_LocalTime(double d)
 {
         return JS_GetDateTime() + _getDaylightSavingTA(d);
 }
 
 //JavaScript time implement End.