Move fpdfsdk/jsapi into fxjs/

This CL moves the fpdfsdk/sjapi code info fxjs/. The "fxjs" library is moved
from being XFA specific to being compiled if V8 is enabled.

The fxjs_v8 files are required when building for XFA (they have XFA defines
in them) and are used in CFXJS_RuntimeData. The cfxjse_* files are only added
if XFA is also enabled.

Review-Url: https://codereview.chromium.org/2144603003

1 files changed, 290 insertions, 0 deletions

diff --git a/fxjs/include/fxjs_v8.h b/fxjs/include/fxjs_v8.h
new file mode 100644
index 0000000000..465feef5e8
--- /dev/null
+++ b/fxjs/include/fxjs_v8.h
@@ -0,0 +1,290 @@
+// 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
+
+// FXJS_V8 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_INCLUDE_FXJS_V8_H_
+#define FXJS_INCLUDE_FXJS_V8_H_
+
+#include <v8-util.h>
+#include <v8.h>
+
+#include <vector>
+
+#include "core/fxcrt/include/fx_string.h"
+
+class CFXJS_ObjDefinition;
+
+// FXJS_V8 places no restrictions on these two classes; it merely passes them
+// on to caller-provided methods.
+class IJS_Context;  // A description of the event that caused JS execution.
+class IJS_Runtime;  // A native runtime, typically owns the v8::Context.
+
+#ifdef PDF_ENABLE_XFA
+// FXJS_V8 places no interpreation on this calass; it merely passes it
+// along to XFA.
+class CFXJSE_RuntimeData;
+#endif  // PDF_ENABLE_XFA
+
+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;
+};
+
+// Global weak map to save dynamic objects.
+class V8TemplateMapTraits : public v8::StdMapTraits<void*, v8::Object> {
+ public:
+  typedef v8::GlobalValueMap<void*, v8::Object, V8TemplateMapTraits> MapType;
+  typedef void WeakCallbackDataType;
+
+  static WeakCallbackDataType* WeakCallbackParameter(
+      MapType* map,
+      void* key,
+      const v8::Local<v8::Object>& value) {
+    return key;
+  }
+  static MapType* MapFromWeakCallbackInfo(
+      const v8::WeakCallbackInfo<WeakCallbackDataType>&);
+
+  static void* KeyFromWeakCallbackInfo(
+      const v8::WeakCallbackInfo<WeakCallbackDataType>& data) {
+    return data.GetParameter();
+  }
+  static const v8::PersistentContainerCallbackType kCallbackType =
+      v8::kWeakWithInternalFields;
+  static void DisposeWeak(
+      const v8::WeakCallbackInfo<WeakCallbackDataType>& data) {}
+  static void OnWeakCallback(
+      const v8::WeakCallbackInfo<WeakCallbackDataType>& data) {}
+  static void Dispose(v8::Isolate* isolate,
+                      v8::Global<v8::Object> value,
+                      void* key);
+  static void DisposeCallbackData(WeakCallbackDataType* callbackData) {}
+};
+
+class V8TemplateMap {
+ public:
+  typedef v8::GlobalValueMap<void*, v8::Object, V8TemplateMapTraits> MapType;
+
+  explicit V8TemplateMap(v8::Isolate* isolate);
+  ~V8TemplateMap();
+
+  void set(void* key, v8::Local<v8::Object> handle);
+
+  friend class V8TemplateMapTraits;
+
+ private:
+  MapType m_map;
+};
+
+class FXJS_PerIsolateData {
+ public:
+  ~FXJS_PerIsolateData();
+
+  static void SetUp(v8::Isolate* pIsolate);
+  static FXJS_PerIsolateData* Get(v8::Isolate* pIsolate);
+
+  void CreateDynamicObjsMap(v8::Isolate* pIsolate) {
+    if (!m_pDynamicObjsMap)
+      m_pDynamicObjsMap = new V8TemplateMap(pIsolate);
+  }
+  void ReleaseDynamicObjsMap() {
+    delete m_pDynamicObjsMap;
+    m_pDynamicObjsMap = nullptr;
+  }
+
+  std::vector<CFXJS_ObjDefinition*> m_ObjectDefnArray;
+#ifdef PDF_ENABLE_XFA
+  CFXJSE_RuntimeData* m_pFXJSERuntimeData;
+#endif  // PDF_ENABLE_XFA
+  V8TemplateMap* m_pDynamicObjsMap;
+
+ protected:
+  FXJS_PerIsolateData();
+};
+
+extern const wchar_t kFXJSValueNameString[];
+extern const wchar_t kFXJSValueNameNumber[];
+extern const wchar_t kFXJSValueNameBoolean[];
+extern const wchar_t kFXJSValueNameDate[];
+extern const wchar_t kFXJSValueNameObject[];
+extern const wchar_t kFXJSValueNameFxobj[];
+extern const wchar_t kFXJSValueNameNull[];
+extern const wchar_t kFXJSValueNameUndefined[];
+
+class FXJS_ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
+  void* Allocate(size_t length) override;
+  void* AllocateUninitialized(size_t length) override;
+  void Free(void* data, size_t length) override;
+};
+
+using FXJS_CONSTRUCTOR = void (*)(IJS_Runtime* cc, v8::Local<v8::Object> obj);
+using FXJS_DESTRUCTOR = void (*)(v8::Local<v8::Object> obj);
+
+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();
+
+// Always returns a valid, newly-created objDefnID.
+int FXJS_DefineObj(v8::Isolate* pIsolate,
+                   const wchar_t* sObjName,
+                   FXJSOBJTYPE eObjType,
+                   FXJS_CONSTRUCTOR pConstructor,
+                   FXJS_DESTRUCTOR pDestructor);
+
+void FXJS_DefineObjMethod(v8::Isolate* pIsolate,
+                          int nObjDefnID,
+                          const wchar_t* sMethodName,
+                          v8::FunctionCallback pMethodCall);
+void FXJS_DefineObjProperty(v8::Isolate* pIsolate,
+                            int nObjDefnID,
+                            const wchar_t* sPropName,
+                            v8::AccessorGetterCallback pPropGet,
+                            v8::AccessorSetterCallback pPropPut);
+void FXJS_DefineObjAllProperties(v8::Isolate* pIsolate,
+                                 int nObjDefnID,
+                                 v8::NamedPropertyQueryCallback pPropQurey,
+                                 v8::NamedPropertyGetterCallback pPropGet,
+                                 v8::NamedPropertySetterCallback pPropPut,
+                                 v8::NamedPropertyDeleterCallback pPropDel);
+void FXJS_DefineObjConst(v8::Isolate* pIsolate,
+                         int nObjDefnID,
+                         const wchar_t* sConstName,
+                         v8::Local<v8::Value> pDefault);
+void FXJS_DefineGlobalMethod(v8::Isolate* pIsolate,
+                             const wchar_t* sMethodName,
+                             v8::FunctionCallback pMethodCall);
+void FXJS_DefineGlobalConst(v8::Isolate* pIsolate,
+                            const wchar_t* sConstName,
+                            v8::FunctionCallback pConstGetter);
+
+// Called after FXJS_Define* calls made.
+void FXJS_InitializeRuntime(
+    v8::Isolate* pIsolate,
+    IJS_Runtime* pIRuntime,
+    v8::Global<v8::Context>* pV8PersistentContext,
+    std::vector<v8::Global<v8::Object>*>* pStaticObjects);
+void FXJS_ReleaseRuntime(v8::Isolate* pIsolate,
+                         v8::Global<v8::Context>* pV8PersistentContext,
+                         std::vector<v8::Global<v8::Object>*>* pStaticObjects);
+IJS_Runtime* FXJS_GetRuntimeFromIsolate(v8::Isolate* pIsolate);
+
+#ifdef PDF_ENABLE_XFA
+// Called as part of FXJS_InitializeRuntime, exposed so PDF can make its
+// own contexts compatible with XFA or vice versa.
+void FXJS_SetRuntimeForV8Context(v8::Local<v8::Context> v8Context,
+                                 IJS_Runtime* pIRuntime);
+#endif  // PDF_ENABLE_XFA
+
+// Called after FXJS_InitializeRuntime call made.
+int FXJS_Execute(v8::Isolate* pIsolate,
+                 const CFX_WideString& script,
+                 FXJSErr* perror);
+
+v8::Local<v8::Object> FXJS_NewFxDynamicObj(v8::Isolate* pIsolate,
+                                           IJS_Runtime* pJSContext,
+                                           int nObjDefnID,
+                                           bool bStatic = false);
+v8::Local<v8::Object> FXJS_GetThisObj(v8::Isolate* pIsolate);
+int FXJS_GetObjDefnID(v8::Local<v8::Object> pObj);
+const wchar_t* FXJS_GetTypeof(v8::Local<v8::Value> pObj);
+
+void FXJS_SetPrivate(v8::Isolate* pIsolate,
+                     v8::Local<v8::Object> pObj,
+                     void* p);
+void* FXJS_GetPrivate(v8::Isolate* pIsolate, v8::Local<v8::Object> pObj);
+void FXJS_FreePrivate(void* p);
+void FXJS_FreePrivate(v8::Local<v8::Object> pObj);
+void FXJS_Error(v8::Isolate* isolate, const CFX_WideString& message);
+
+v8::Local<v8::String> FXJS_WSToJSString(v8::Isolate* pIsolate,
+                                        const CFX_WideString& wsPropertyName);
+v8::Local<v8::Value> FXJS_GetObjectElement(v8::Isolate* pIsolate,
+                                           v8::Local<v8::Object> pObj,
+                                           const CFX_WideString& PropertyName);
+v8::Local<v8::Array> FXJS_GetObjectElementNames(v8::Isolate* pIsolate,
+                                                v8::Local<v8::Object> pObj);
+v8::Local<v8::Value> FXJS_GetArrayElement(v8::Isolate* pIsolate,
+                                          v8::Local<v8::Array> pArray,
+                                          unsigned index);
+
+unsigned FXJS_GetArrayLength(v8::Local<v8::Array> pArray);
+void FXJS_PutObjectString(v8::Isolate* pIsolate,
+                          v8::Local<v8::Object> pObj,
+                          const CFX_WideString& wsPropertyName,
+                          const CFX_WideString& wsValue);
+void FXJS_PutObjectNumber(v8::Isolate* pIsolate,
+                          v8::Local<v8::Object> pObj,
+                          const CFX_WideString& PropertyName,
+                          int nValue);
+void FXJS_PutObjectNumber(v8::Isolate* pIsolate,
+                          v8::Local<v8::Object> pObj,
+                          const CFX_WideString& PropertyName,
+                          float fValue);
+void FXJS_PutObjectNumber(v8::Isolate* pIsolate,
+                          v8::Local<v8::Object> pObj,
+                          const CFX_WideString& PropertyName,
+                          double dValue);
+void FXJS_PutObjectBoolean(v8::Isolate* pIsolate,
+                           v8::Local<v8::Object> pObj,
+                           const CFX_WideString& PropertyName,
+                           bool bValue);
+void FXJS_PutObjectObject(v8::Isolate* pIsolate,
+                          v8::Local<v8::Object> pObj,
+                          const CFX_WideString& PropertyName,
+                          v8::Local<v8::Object> pPut);
+void FXJS_PutObjectNull(v8::Isolate* pIsolate,
+                        v8::Local<v8::Object> pObj,
+                        const CFX_WideString& PropertyName);
+unsigned FXJS_PutArrayElement(v8::Isolate* pIsolate,
+                              v8::Local<v8::Array> pArray,
+                              unsigned index,
+                              v8::Local<v8::Value> pValue);
+
+v8::Local<v8::Array> FXJS_NewArray(v8::Isolate* pIsolate);
+v8::Local<v8::Value> FXJS_NewNumber(v8::Isolate* pIsolate, int number);
+v8::Local<v8::Value> FXJS_NewNumber(v8::Isolate* pIsolate, double number);
+v8::Local<v8::Value> FXJS_NewNumber(v8::Isolate* pIsolate, float number);
+v8::Local<v8::Value> FXJS_NewBoolean(v8::Isolate* pIsolate, bool b);
+v8::Local<v8::Value> FXJS_NewObject(v8::Isolate* pIsolate,
+                                    v8::Local<v8::Object> pObj);
+v8::Local<v8::Value> FXJS_NewObject2(v8::Isolate* pIsolate,
+                                     v8::Local<v8::Array> pObj);
+v8::Local<v8::Value> FXJS_NewString(v8::Isolate* pIsolate, const wchar_t* str);
+v8::Local<v8::Value> FXJS_NewNull();
+v8::Local<v8::Value> FXJS_NewDate(v8::Isolate* pIsolate, double d);
+
+int FXJS_ToInt32(v8::Isolate* pIsolate, v8::Local<v8::Value> pValue);
+bool FXJS_ToBoolean(v8::Isolate* pIsolate, v8::Local<v8::Value> pValue);
+double FXJS_ToNumber(v8::Isolate* pIsolate, v8::Local<v8::Value> pValue);
+v8::Local<v8::Object> FXJS_ToObject(v8::Isolate* pIsolate,
+                                    v8::Local<v8::Value> pValue);
+CFX_WideString FXJS_ToString(v8::Isolate* pIsolate,
+                             v8::Local<v8::Value> pValue);
+v8::Local<v8::Array> FXJS_ToArray(v8::Isolate* pIsolate,
+                                  v8::Local<v8::Value> pValue);
+void FXJS_ValueCopy(v8::Local<v8::Value>& pTo, v8::Local<v8::Value> pFrom);
+
+#endif  // FXJS_INCLUDE_FXJS_V8_H_