Merge to XFA: Tidy up JS_Object.h and JS_Object.cpp.

fpdfsdk/include/javascript/JS_Object.h

 // 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
 
 #ifndef FPDFSDK_INCLUDE_JAVASCRIPT_JS_OBJECT_H_
 #define FPDFSDK_INCLUDE_JAVASCRIPT_JS_OBJECT_H_
 
 #include <map>
 
+#include "../../../third_party/base/nonstd_unique_ptr.h"
+
 #include "../fsdk_define.h"       // For FX_UINT
 #include "../fsdk_mgr.h"          // For CPDFDoc_Environment
 #include "../fx_systemhandler.h"  // For IFX_SystemHandler
 #include "../jsapi/fxjs_v8.h"
 
 class CPDFSDK_PageView;
+class CJS_Context;
 class CJS_Object;
+class CJS_Runtime;
 class CJS_Timer;
-class CJS_Context;
 
 class CJS_EmbedObj {
  public:
-  CJS_EmbedObj(CJS_Object* pJSObject);
+  explicit CJS_EmbedObj(CJS_Object* pJSObject);
   virtual ~CJS_EmbedObj();
 
-  virtual void TimerProc(CJS_Timer* pTimer){};
-
+  virtual void TimerProc(CJS_Timer* pTimer) {}
   CJS_Timer* BeginTimer(CPDFDoc_Environment* pApp, FX_UINT nElapse);
   void EndTimer(CJS_Timer* pTimer);
 
-  CJS_Object* GetJSObject() { return m_pJSObject; };
-  operator CJS_Object*() { return m_pJSObject; };
+  CJS_Object* GetJSObject() const { return m_pJSObject; }
 
   CPDFSDK_PageView* JSGetPageView(IFXJS_Context* cc);
   int MsgBox(CPDFDoc_Environment* pApp,
              CPDFSDK_PageView* pPageView,
              const FX_WCHAR* swMsg,
              const FX_WCHAR* swTitle = NULL,
              FX_UINT nType = 0,
              FX_UINT nIcon = 0);
   void Alert(CJS_Context* pContext, const FX_WCHAR* swMsg);
 
  protected:
   CJS_Object* m_pJSObject;
 };
 
 class CJS_Object {
  public:
-  CJS_Object(JSFXObject pObject);
+  explicit CJS_Object(JSFXObject pObject);
   virtual ~CJS_Object(void);
 
   void MakeWeak();
   void Dispose();
 
-  virtual FX_BOOL IsType(const FX_CHAR* sClassName) { return TRUE; };
-  virtual CFX_ByteString GetClassName() { return ""; };
+  virtual FX_BOOL IsType(const FX_CHAR* sClassName) { return TRUE; }
+  virtual CFX_ByteString GetClassName() { return ""; }
 
-  virtual FX_BOOL InitInstance(IFXJS_Context* cc) { return TRUE; };
-  virtual FX_BOOL ExitInstance() { return TRUE; };
+  virtual FX_BOOL InitInstance(IFXJS_Context* cc) { return TRUE; }
+  virtual FX_BOOL ExitInstance() { return TRUE; }
 
   operator JSFXObject() {
     return v8::Local<v8::Object>::New(m_pIsolate, m_pObject);
   }
-  operator CJS_EmbedObj*() { return m_pEmbedObj; };
 
-  void SetEmbedObject(CJS_EmbedObj* pObj) { m_pEmbedObj = pObj; };
-  CJS_EmbedObj* GetEmbedObject() { return m_pEmbedObj; };
+  // Takes ownership of |pObj|.
+  void SetEmbedObject(CJS_EmbedObj* pObj) { m_pEmbedObj.reset(pObj); }
+  CJS_EmbedObj* GetEmbedObject() const { return m_pEmbedObj.get(); }
 
   static CPDFSDK_PageView* JSGetPageView(IFXJS_Context* cc);
   static int MsgBox(CPDFDoc_Environment* pApp,
                     CPDFSDK_PageView* pPageView,
                     const FX_WCHAR* swMsg,
                     const FX_WCHAR* swTitle = NULL,
                     FX_UINT nType = 0,
                     FX_UINT nIcon = 0);
   static void Alert(CJS_Context* pContext, const FX_WCHAR* swMsg);
 
   v8::Isolate* GetIsolate() { return m_pIsolate; }
 
  protected:
-  CJS_EmbedObj* m_pEmbedObj;
+  nonstd::unique_ptr<CJS_EmbedObj> m_pEmbedObj;
   v8::Global<v8::Object> m_pObject;
   v8::Isolate* m_pIsolate;
 };
 
-using JSTimerMap = std::map<FX_UINT, CJS_Timer*>;
-JSTimerMap* GetGlobalTimerMap();
-
-class CJS_Runtime;
-
 class CJS_Timer {
  public:
   CJS_Timer(CJS_EmbedObj* pObj, CPDFDoc_Environment* pApp)
       : m_nTimerID(0),
         m_pEmbedObj(pObj),
         m_bProcessing(FALSE),
         m_dwStartTime(0),
         m_dwTimeOut(0),
         m_dwElapse(0),
         m_pRuntime(NULL),
         m_nType(0),
         m_pApp(pApp) {}
 
   virtual ~CJS_Timer() { KillJSTimer(); }
 
  public:
-  FX_UINT SetJSTimer(FX_UINT nElapse) {
-    if (m_nTimerID)
-      KillJSTimer();
-    IFX_SystemHandler* pHandler = m_pApp->GetSysHandler();
-    m_nTimerID = pHandler->SetTimer(nElapse, TimerProc);
-    (*GetGlobalTimerMap())[m_nTimerID] = this;
-    m_dwElapse = nElapse;
-    return m_nTimerID;
-  };
-
-  void KillJSTimer() {
-    if (m_nTimerID) {
-      if (m_pApp == NULL) {
-        GetTimeMap().RemoveAt(m_nTimerID);
-        m_nTimerID = 0;
-        return;
-      }
-      IFX_SystemHandler* pHandler = m_pApp->GetSysHandler();
-      pHandler->KillTimer(m_nTimerID);
-      GetGlobalTimerMap()->erase(m_nTimerID);
-      m_nTimerID = 0;
-    }
-  };
+  FX_UINT SetJSTimer(FX_UINT nElapse);
+  void KillJSTimer();
 
   void SetType(int nType) { m_nType = nType; }
-
   int GetType() const { return m_nType; }
 
   void SetStartTime(FX_DWORD dwStartTime) { m_dwStartTime = dwStartTime; }
-
   FX_DWORD GetStartTime() const { return m_dwStartTime; }
 
   void SetTimeOut(FX_DWORD dwTimeOut) { m_dwTimeOut = dwTimeOut; }
-
   FX_DWORD GetTimeOut() const { return m_dwTimeOut; }
 
   void SetRuntime(CJS_Runtime* pRuntime) { m_pRuntime = pRuntime; }
-
   CJS_Runtime* GetRuntime() const { return m_pRuntime; }
 
   void SetJScript(const CFX_WideString& script) { m_swJScript = script; }
-
   CFX_WideString GetJScript() const { return m_swJScript; }
 
-  static void TimerProc(int idEvent) {
-    const auto it = GetGlobalTimerMap()->find(idEvent);
-    if (it != GetGlobalTimerMap()->end()) {
-      CJS_Timer* pTimer = it->second;
-      if (!pTimer->m_bProcessing) {
-        pTimer->m_bProcessing = TRUE;
-        if (pTimer->m_pEmbedObj)
-          pTimer->m_pEmbedObj->TimerProc(pTimer);
-        pTimer->m_bProcessing = FALSE;
-      }
-    }
-  };
+  static void TimerProc(int idEvent);
 
  private:
+  using TimerMap = std::map<FX_UINT, CJS_Timer*>;
+  static TimerMap* GetGlobalTimerMap();
+
   FX_UINT m_nTimerID;
   CJS_EmbedObj* m_pEmbedObj;
   FX_BOOL m_bProcessing;
 
   // data
   FX_DWORD m_dwStartTime;
   FX_DWORD m_dwTimeOut;
   FX_DWORD m_dwElapse;
   CJS_Runtime* m_pRuntime;
   CFX_WideString m_swJScript;
   int m_nType;  // 0:Interval; 1:TimeOut
 
   CPDFDoc_Environment* m_pApp;
 };
 
 #endif  // FPDFSDK_INCLUDE_JAVASCRIPT_JS_OBJECT_H_