Handle overlapping links and widgets.

fpdfsdk/src/fpdfdoc.cpp

 // 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
 
 #include "../include/fsdk_define.h"
 #include "../include/fpdfdoc.h"
 
 static int THISMODULE = 0;
@@ skipping 155 matching lines @@
 
 DLLEXPORT FPDF_LINK STDCALL FPDFLink_GetLinkAtPoint(FPDF_PAGE page, double x, double y)
 {
         if (!page)
                 return NULL;
         CPDF_Page* pPage = (CPDF_Page*)page;
         // Link list is stored with the document
         CPDF_Document* pDoc = pPage->m_pDocument;
         CPDF_LinkList* pLinkList = (CPDF_LinkList*)pDoc->GetPrivateData(&THISMODULE);
         if (!pLinkList) {
-                pLinkList = FX_NEW CPDF_LinkList(pDoc);
+                pLinkList = FX_NEW CPDF_LinkList;
                 pDoc->SetPrivateData(&THISMODULE, pLinkList, ReleaseLinkList);
         }
         return pLinkList->GetLinkAtPoint(pPage, (FX_FLOAT)x, (FX_FLOAT)y);
 }
 
 DLLEXPORT FPDF_DEST STDCALL FPDFLink_GetDest(FPDF_DOCUMENT document, FPDF_LINK pDict)
 {
         if (!document)
                 return NULL;
         CPDF_Document* pDoc = (CPDF_Document*)document;
@@ skipping 101 matching lines @@
                 return 0;
         CFX_WideString text = pInfo->GetUnicodeText(tag);
         // Use UTF-16LE encoding
         CFX_ByteString encodedText = text.UTF16LE_Encode();
         unsigned long len = encodedText.GetLength();
         if (buffer && buflen >= len) {
                 FXSYS_memcpy(buffer, encodedText.c_str(), len);
         }
         return len;
 }