Add a callback function: PDFiumEngine::Form_PageEvent

pdf/pdfium/pdfium_engine.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "pdf/pdfium/pdfium_engine.h"
 
 #include <math.h>
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 565 matching lines @@
   FPDF_FORMFILLINFO::FFI_DoURIAction = Form_DoURIAction;
   FPDF_FORMFILLINFO::FFI_DoGoToAction = Form_DoGoToAction;
 #ifdef PDF_USE_XFA
   FPDF_FORMFILLINFO::version = 2;
   FPDF_FORMFILLINFO::FFI_EmailTo = Form_EmailTo;
   FPDF_FORMFILLINFO::FFI_DisplayCaret = Form_DisplayCaret;
   FPDF_FORMFILLINFO::FFI_SetCurrentPage = Form_SetCurrentPage;
   FPDF_FORMFILLINFO::FFI_GetCurrentPageIndex = Form_GetCurrentPageIndex;
   FPDF_FORMFILLINFO::FFI_GetPageViewRect = Form_GetPageViewRect;
   FPDF_FORMFILLINFO::FFI_GetPlatform = Form_GetPlatform;
+  FPDF_FORMFILLINFO::FFI_PageEvent = Form_PageEvent;
   FPDF_FORMFILLINFO::FFI_PopupMenu = Form_PopupMenu;
   FPDF_FORMFILLINFO::FFI_PostRequestURL = Form_PostRequestURL;
   FPDF_FORMFILLINFO::FFI_PutRequestURL = Form_PutRequestURL;
   FPDF_FORMFILLINFO::FFI_UploadTo = Form_UploadTo;
   FPDF_FORMFILLINFO::FFI_DownloadFromURL = Form_DownloadFromURL;
   FPDF_FORMFILLINFO::FFI_OpenFile = Form_OpenFile;
   FPDF_FORMFILLINFO::FFI_GotoURL = Form_GotoURL;
   FPDF_FORMFILLINFO::FFI_GetLanguage = Form_GetLanguage;
 #endif  // PDF_USE_XFA
   IPDF_JSPLATFORM::version = 3;
@@ skipping 191 matching lines @@
   platform_flag = 2;
 #endif
 
   std::string javascript = "alert(\"Platform:"
       + base::DoubleToString(platform_flag)
       + "\")";
 
   return platform_flag;
 }
 
+void PDFiumEngine::Form_PageEvent(FPDF_FORMFILLINFO* param,
+                                  int iPageIndex,
+                                  int iEventType) {}
+
 FPDF_BOOL PDFiumEngine::Form_PopupMenu(FPDF_FORMFILLINFO* param,
                                        FPDF_PAGE page,
                                        FPDF_WIDGET widget,
                                        int menu_flag,
                                        float x,
                                        float y) {
   return false;
 }
 
 FPDF_BOOL PDFiumEngine::Form_PostRequestURL(FPDF_FORMFILLINFO* param,
@@ skipping 3137 matching lines @@
     double* height) {
   FPDF_DOCUMENT doc = FPDF_LoadMemDocument(pdf_buffer, pdf_buffer_size, NULL);
   if (!doc)
     return false;
   bool success = FPDF_GetPageSizeByIndex(doc, page_number, width, height) != 0;
   FPDF_CloseDocument(doc);
   return success;
 }
 
 }  // namespace chrome_pdf