fpdfsdk/include/javascript/JS_Runtime.h

   1 // Copyright 2014 PDFium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
   6
   7 #ifndef FPDFSDK_INCLUDE_JAVASCRIPT_JS_RUNTIME_H_
   8 #define FPDFSDK_INCLUDE_JAVASCRIPT_JS_RUNTIME_H_
   9
  10 #include "../../../third_party/base/nonstd_unique_ptr.h"
  11 #include "../../../core/include/fxcrt/fx_basic.h"
  12 #include "../jsapi/fxjs_v8.h"
  13 #include "IJavaScript.h"
  14 #include "JS_EventHandler.h"
  15
  16 class CJS_Context;
  17
  18 class CJS_ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
  19     void* Allocate(size_t length) override;
  20     void* AllocateUninitialized(size_t length) override;
  21     void Free(void* data, size_t length) override;
  22 };
  23
  24 class CJS_FieldEvent
  25 {
  26 public:
  27         CFX_WideString          sTargetName;
  28         JS_EVENT_T                      eEventType;
  29         CJS_FieldEvent*         pNext;
  30 };
  31
  32 class CJS_Runtime : public IFXJS_Runtime
  33 {
  34 public:
  35         CJS_Runtime(CPDFDoc_Environment * pApp);
  36         virtual ~CJS_Runtime();
  37
  38         virtual IFXJS_Context *                                 NewContext();
  39         virtual void                                                    ReleaseContext(IFXJS_Context * pContext);
  40         virtual IFXJS_Context*                                  GetCurrentContext();
  41
  42         virtual void                                                    SetReaderDocument(CPDFSDK_Document *pReaderDoc);
  43         virtual CPDFSDK_Document *                              GetReaderDocument(){return m_pDocument;}
  44
  45         CPDFDoc_Environment *                                                   GetReaderApp(){return m_pApp;}
  46
  47         bool                                                                    InitJSObjects();
  48
  49         bool                                                                    AddEventToLoop(const CFX_WideString& sTargetName, JS_EVENT_T eEventType);
  50         void                                                                    RemoveEventInLoop(const CFX_WideString& sTargetName, JS_EVENT_T eEventType);
  51         void                                                                    RemoveEventsInLoop(CJS_FieldEvent* pStart);
  52
  53         void                                                                    BeginBlock(){m_bBlocking = true;}
  54         void                                                                    EndBlock(){m_bBlocking = false;}
  55         bool                                                                    IsBlocking(){return m_bBlocking;}
  56
  57         operator                                                                IJS_Runtime*() {return (IJS_Runtime*)m_isolate;}
  58         v8::Isolate*                                                            GetIsolate(){return m_isolate;};
  59         void                                                                    SetIsolate(v8::Isolate* isolate){m_isolate = isolate;}
  60
  61         v8::Local<v8::Context>                                                  NewJSContext();
  62 protected:
  63         CFX_ArrayTemplate<CJS_Context*>         m_ContextArray;
  64         CPDFDoc_Environment*                                                    m_pApp;
  65         CPDFSDK_Document*                                               m_pDocument;
  66         bool                                                                    m_bBlocking;
  67         CJS_FieldEvent*                                                 m_pFieldEventPath;
  68
  69         v8::Isolate* m_isolate;
  70         nonstd::unique_ptr<CJS_ArrayBufferAllocator> m_pArrayBufferAllocator;
  71         v8::Global<v8::Context> m_context;
  72 };
  73
  74 #endif  // FPDFSDK_INCLUDE_JAVASCRIPT_JS_RUNTIME_H_