PDF Viewer - Show context menu for links on right click

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 "base/json/json_writer.h"
 #include "base/logging.h"
@@ skipping 1845 matching lines @@
       result.append(selection_[i].GetText());
     }
   }
 
   return base::UTF16ToUTF8(result);
 }
 
 std::string PDFiumEngine::GetLinkAtPosition(const pp::Point& point) {
   int temp;
   PDFiumPage::LinkTarget target;
-  PDFiumPage::Area area = GetCharIndex(point, &temp, &temp, &target);
+  pp::Point point_in_page(
+      static_cast<int>((point.x() + position_.x()) / current_zoom_),
+      static_cast<int>((point.y() + position_.y()) / current_zoom_));
+  PDFiumPage::Area area = GetCharIndex(point_in_page, &temp, &temp, &target);
   if (area == PDFiumPage::WEBLINK_AREA)
     return target.url;
   return std::string();
 }
 
 bool PDFiumEngine::IsSelecting() {
   return selecting_;
 }
 
 bool PDFiumEngine::HasPermission(DocumentPermission permission) const {
@@ skipping 1545 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