Rename fxjs_v8.{h,cpp} to cfxjs_engine.{h,cpp}

Place the template map definitions entirely in .cpp file.

Change-Id: I2643f1b99f5582b69aa985857c4aa6f9b5ab57c8
Reviewed-on: https://pdfium-review.googlesource.com/26150
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>

1 files changed, 157 insertions, 0 deletions

diff --git a/fxjs/cfxjs_engine.h b/fxjs/cfxjs_engine.h
new file mode 100644
index 0000000000..5f883f7e4a
--- /dev/null
+++ b/fxjs/cfxjs_engine.h
@@ -0,0 +1,157 @@
+// 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
+
+// CFXJS_ENGINE is a layer that makes it easier to define native objects in V8,
+// but has no knowledge of PDF-specific native objects. It could in theory be
+// used to implement other sets of native objects.
+
+// PDFium code should include this file rather than including V8 headers
+// directly.
+
+#ifndef FXJS_CFXJS_ENGINE_H_
+#define FXJS_CFXJS_ENGINE_H_
+
+#include <functional>
+#include <map>
+#include <memory>
+#include <vector>
+
+#include "core/fxcrt/fx_string.h"
+#include "fxjs/cfx_v8.h"
+#include "v8/include/v8-util.h"
+#include "v8/include/v8.h"
+
+#ifdef PDF_ENABLE_XFA
+// CFXJS_ENGINE doesn't interpret this class, it is just passed along to XFA.
+class CFXJSE_RuntimeData;
+#endif  // PDF_ENABLE_XFA
+
+class CFXJS_ObjDefinition;
+class CJS_Object;
+class V8TemplateMap;
+
+// CFXJS_ENGINE places no restrictions on this class; it merely passes it
+// on to caller-provided methods.
+class IJS_EventContext;  // A description of the event that caused JS execution.
+
+enum FXJSOBJTYPE {
+  FXJSOBJTYPE_DYNAMIC = 0,  // Created by native method and returned to JS.
+  FXJSOBJTYPE_STATIC,       // Created by init and hung off of global object.
+  FXJSOBJTYPE_GLOBAL,       // The global object itself (may only appear once).
+};
+
+struct FXJSErr {
+  const wchar_t* message;
+  const wchar_t* srcline;
+  unsigned linnum;
+};
+
+class FXJS_PerIsolateData {
+ public:
+  ~FXJS_PerIsolateData();
+
+  static void SetUp(v8::Isolate* pIsolate);
+  static FXJS_PerIsolateData* Get(v8::Isolate* pIsolate);
+
+  std::vector<std::unique_ptr<CFXJS_ObjDefinition>> m_ObjectDefnArray;
+#ifdef PDF_ENABLE_XFA
+  std::unique_ptr<CFXJSE_RuntimeData> m_pFXJSERuntimeData;
+#endif  // PDF_ENABLE_XFA
+  std::unique_ptr<V8TemplateMap> m_pDynamicObjsMap;
+
+ protected:
+  explicit FXJS_PerIsolateData(v8::Isolate* pIsolate);
+};
+
+void FXJS_Initialize(unsigned int embedderDataSlot, v8::Isolate* pIsolate);
+void FXJS_Release();
+
+// Gets the global isolate set by FXJS_Initialize(), or makes a new one each
+// time if there is no such isolate. Returns true if a new isolate had to be
+// created.
+bool FXJS_GetIsolate(v8::Isolate** pResultIsolate);
+
+// Get the global isolate's ref count.
+size_t FXJS_GlobalIsolateRefCount();
+
+class CFXJS_Engine : public CFX_V8 {
+ public:
+  explicit CFXJS_Engine(v8::Isolate* pIsolate);
+  ~CFXJS_Engine() override;
+
+  using Constructor =
+      std::function<void(CFXJS_Engine* pEngine, v8::Local<v8::Object> obj)>;
+  using Destructor = std::function<void(v8::Local<v8::Object> obj)>;
+
+  static CFXJS_Engine* EngineFromIsolateCurrentContext(v8::Isolate* pIsolate);
+  static CFXJS_Engine* EngineFromContext(v8::Local<v8::Context> pContext);
+
+  static int GetObjDefnID(v8::Local<v8::Object> pObj);
+
+  static void SetObjectPrivate(v8::Local<v8::Object> pObj,
+                               std::unique_ptr<CJS_Object> p);
+  static void FreeObjectPrivate(v8::Local<v8::Object> pObj);
+
+  void SetIntoContext(v8::Local<v8::Context> pContext);
+
+  // Always returns a valid, newly-created objDefnID.
+  int DefineObj(const char* sObjName,
+                FXJSOBJTYPE eObjType,
+                Constructor pConstructor,
+                Destructor pDestructor);
+
+  void DefineObjMethod(int nObjDefnID,
+                       const char* sMethodName,
+                       v8::FunctionCallback pMethodCall);
+  void DefineObjProperty(int nObjDefnID,
+                         const char* sPropName,
+                         v8::AccessorGetterCallback pPropGet,
+                         v8::AccessorSetterCallback pPropPut);
+  void DefineObjAllProperties(int nObjDefnID,
+                              v8::NamedPropertyQueryCallback pPropQurey,
+                              v8::NamedPropertyGetterCallback pPropGet,
+                              v8::NamedPropertySetterCallback pPropPut,
+                              v8::NamedPropertyDeleterCallback pPropDel);
+  void DefineObjConst(int nObjDefnID,
+                      const char* sConstName,
+                      v8::Local<v8::Value> pDefault);
+  void DefineGlobalMethod(const char* sMethodName,
+                          v8::FunctionCallback pMethodCall);
+  void DefineGlobalConst(const wchar_t* sConstName,
+                         v8::FunctionCallback pConstGetter);
+
+  // Called after FXJS_Define* calls made.
+  void InitializeEngine();
+  void ReleaseEngine();
+
+  // Called after FXJS_InitializeEngine call made.
+  int Execute(const WideString& script, FXJSErr* perror);
+
+  v8::Local<v8::Object> GetThisObj();
+  v8::Local<v8::Object> NewFXJSBoundObject(int nObjDefnID,
+                                           bool bStatic = false);
+  // Retrieve native object binding.
+  CJS_Object* GetObjectPrivate(v8::Local<v8::Object> pObj);
+
+  void Error(const WideString& message);
+
+  v8::Local<v8::Context> GetV8Context() {
+    return v8::Local<v8::Context>::New(GetIsolate(), m_V8Context);
+  }
+
+  v8::Local<v8::Array> GetConstArray(const WideString& name);
+  void SetConstArray(const WideString& name, v8::Local<v8::Array> array);
+
+ protected:
+  CFXJS_Engine();
+
+ private:
+  v8::Global<v8::Context> m_V8Context;
+  std::vector<v8::Global<v8::Object>> m_StaticObjects;
+  std::map<WideString, v8::Global<v8::Array>> m_ConstArrays;
+};
+
+#endif  // FXJS_CFXJS_ENGINE_H_