PDF: Use FPDFAction_GetFilePath() to handle launch actions.

pdf/pdfium/pdfium_page.cc

 // Copyright (c) 2010 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_page.h"
 
 #include <math.h>
 #include <stddef.h>
 
 #include <algorithm>
@@ skipping 318 matching lines @@
       FPDF_DEST dest = FPDFAction_GetDest(engine_->doc(), action);
       if (dest)
         return GetDestinationTarget(dest, target);
       // TODO(thestig): We don't fully support all types of the in-document
       // links. Need to implement that. There is a bug to track that:
       // https://crbug.com/55776
       return NONSELECTABLE_AREA;
     }
     case PDFACTION_URI:
       return GetURITarget(action, target);
+    case PDFACTION_LAUNCH:
+      return GetLaunchTarget(action, target);
     // TODO(thestig): Support remaining types for https://crbug.com/55776
-    case PDFACTION_LAUNCH:
     case PDFACTION_REMOTEGOTO:
     default:
       return NONSELECTABLE_AREA;
   }
 }
 
 PDFiumPage::Area PDFiumPage::GetDestinationTarget(FPDF_DEST destination,
                                                   LinkTarget* target) const {
   if (target)
     target->page = FPDFDest_GetPageIndex(engine_->doc(), destination);
@@ skipping 10 matching lines @@
           &target->url, buffer_size, true);
       void* data = api_string_adapter.GetData();
       size_t bytes_written =
           FPDFAction_GetURIPath(engine_->doc(), uri_action, data, buffer_size);
       api_string_adapter.Close(bytes_written);
     }
   }
   return WEBLINK_AREA;
 }
 
+PDFiumPage::Area PDFiumPage::GetLaunchTarget(FPDF_ACTION launch_action,
+                                             LinkTarget* target) const {
+  if (target) {
+    size_t buffer_size = FPDFAction_GetFilePath(launch_action, nullptr, 0);
+    if (buffer_size > 0) {
+      PDFiumAPIStringBufferAdapter<std::string> api_string_adapter(
+          &target->url, buffer_size, true);
+      void* data = api_string_adapter.GetData();
+      size_t bytes_written =
+          FPDFAction_GetFilePath(launch_action, data, buffer_size);
+      api_string_adapter.Close(bytes_written);
+    }
+  }
+  return WEBLINK_AREA;
+}
+
 int PDFiumPage::GetLink(int char_index, LinkTarget* target) {
   if (!available_)
     return -1;
 
   CalculateLinks();
 
   // Get the bounding box of the rect again, since it might have moved because
   // of the tolerance above.
   double left, right, bottom, top;
   FPDFText_GetCharBox(GetTextPage(), char_index, &left, &right, &bottom, &top);
@@ skipping 155 matching lines @@
   page_->loading_count_--;
 }
 
 PDFiumPage::Link::Link() = default;
 
 PDFiumPage::Link::Link(const Link& that) = default;
 
 PDFiumPage::Link::~Link() = default;
 
 }  // namespace chrome_pdf