Hook up FFI_PageEvent.

fpdfsdk/include/fsdk_mgr.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_FSDK_MGR_H_
 #define FPDFSDK_INCLUDE_FSDK_MGR_H_
 
 #include <map>
@@ skipping 214 matching lines @@
       FPDF_WIDESTRING pTo = (FPDF_WIDESTRING)bsTo.GetBuffer(wsURL.GetLength());
       m_pInfo->FFI_GotoURL(m_pInfo, document, pTo);
       bsTo.ReleaseBuffer();
     }
   }
 
   void FFI_GetURL(FPDF_DOCUMENT document, CFX_WideString& wsURL) {
     wsURL = CFX_WideString();
   }
 
-  void FFI_PageEvent(FPDF_PAGE page, FPDF_DWORD flag) {}
-
   void FFI_GetPageViewRect(FPDF_PAGE page, FS_RECTF& dstRect) {
     if (m_pInfo && m_pInfo->FFI_GetPageViewRect) {
       double left;
       double top;
       double right;
       double bottom;
       m_pInfo->FFI_GetPageViewRect(m_pInfo, page, &left, &top, &right, &bottom);
 
       dstRect.left = static_cast<float>(left);
       dstRect.top = static_cast<float>(top < bottom ? bottom : top);
@@ skipping 151 matching lines @@
       }
       CFX_ByteString bsRet = CFX_ByteString(pbuff, nActualLen);
       CFX_WideString wsRet = CFX_WideString::FromUTF16LE(
           (unsigned short*)bsRet.GetBuffer(bsRet.GetLength()),
           bsRet.GetLength() / sizeof(unsigned short));
       delete[] pbuff;
       return wsRet;
     }
     return L"";
   }
-  void FFI_PageEvent(int iPageIndex, int iEventType) const {
-    // Todo: call a call-back function when it's implemented
-    // in applicaiton's side.
+
+  void FFI_PageEvent(int iPageIndex, FX_DWORD dwEventType) const {
+    if (m_pInfo && m_pInfo->FFI_PageEvent)
+      m_pInfo->FFI_PageEvent(m_pInfo, iPageIndex, dwEventType);
   }
 #endif  // PDF_ENABLE_XFA
 
   int JS_appAlert(const FX_WCHAR* Msg,
                   const FX_WCHAR* Title,
                   FX_UINT Type,
                   FX_UINT Icon);
   int JS_appResponse(const FX_WCHAR* Question,
                      const FX_WCHAR* Title,
                      const FX_WCHAR* Default,
@@ skipping 233 matching lines @@
   FX_BOOL m_bTakeOverPage;
 #endif  // PDF_ENABLE_XFA
   FX_BOOL m_bEnterWidget;
   FX_BOOL m_bExitWidget;
   FX_BOOL m_bOnWidget;
   FX_BOOL m_bValid;
   FX_BOOL m_bLocked;
 };
 
 #endif  // FPDFSDK_INCLUDE_FSDK_MGR_H_