cjs_runtime.h revision 5ae9d0c6fd838a2967cca72aa5751b51dadc2769 
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_JAVASCRIPT_CJS_RUNTIME_H_
8#define FPDFSDK_JAVASCRIPT_CJS_RUNTIME_H_
9
10#include <map>
11#include <memory>
12#include <set>
13#include <utility>
14#include <vector>
15
16#include "core/fxcrt/cfx_observable.h"
17#include "core/fxcrt/fx_basic.h"
18#include "fpdfsdk/cpdfsdk_formfillenvironment.h"
19#include "fpdfsdk/javascript/JS_EventHandler.h"
20#include "fpdfsdk/javascript/ijs_runtime.h"
21#include "fxjs/fxjs_v8.h"
22
23class CJS_EventContext;
24
25class CJS_Runtime : public IJS_Runtime,
26                    public CFXJS_Engine,
27                    public CFX_Observable<CJS_Runtime> {
28 public:
29  using FieldEvent = std::pair<CFX_WideString, JS_EVENT_T>;
30
31  static CJS_Runtime* CurrentRuntimeFromIsolate(v8::Isolate* pIsolate);
32
33  explicit CJS_Runtime(CPDFSDK_FormFillEnvironment* pFormFillEnv);
34  ~CJS_Runtime() override;
35
36  // IJS_Runtime
37  IJS_EventContext* NewEventContext() override;
38  void ReleaseEventContext(IJS_EventContext* pContext) override;
39  CPDFSDK_FormFillEnvironment* GetFormFillEnv() const override;
40  int ExecuteScript(const CFX_WideString& script,
41                    CFX_WideString* info) override;
42
43  CJS_EventContext* GetCurrentEventContext() const;
44
45  // Returns true if the event isn't already found in the set.
46  bool AddEventToSet(const FieldEvent& event);
47  void RemoveEventFromSet(const FieldEvent& event);
48
49  void BeginBlock() { m_bBlocking = true; }
50  void EndBlock() { m_bBlocking = false; }
51  bool IsBlocking() const { return m_bBlocking; }
52
53#ifdef PDF_ENABLE_XFA
54  bool GetValueByName(const CFX_ByteStringC& utf8Name,
55                      CFXJSE_Value* pValue) override;
56  bool SetValueByName(const CFX_ByteStringC& utf8Name,
57                      CFXJSE_Value* pValue) override;
58#endif  // PDF_ENABLE_XFA
59
60 private:
61  void DefineJSObjects();
62  void SetFormFillEnvToDocument();
63
64  std::vector<std::unique_ptr<CJS_EventContext>> m_EventContextArray;
65  CPDFSDK_FormFillEnvironment::ObservedPtr m_pFormFillEnv;
66  bool m_bBlocking;
67  bool m_isolateManaged;
68  std::set<FieldEvent> m_FieldEventSet;
69};
70
71#endif  // FPDFSDK_JAVASCRIPT_CJS_RUNTIME_H_
72