Allow pdfium_test to send simple events to each page.

We add the --send-events flag, which causes pdfium_test to look
for a .evt file with the same base name as the .pdf file being
rendered, and to use its contents to drive calls to FORM_*
APIs.

The .evt file syntax is crude, roughly:

# comments
keycode,65
mousedown,right,300,300 # more comments
mouseup,right,300,300
mousemove,300,300

Review URL: https://codereview.chromium.org/1898993002

2 files changed, 18 insertions, 0 deletions

diff --git a/testing/test_support.cpp b/testing/test_support.cpp
index 1ccd32f084..c50edeba2d 100644
--- a/testing/test_support.cpp
+++ b/testing/test_support.cpp
@@ -118,6 +118,21 @@ std::wstring GetPlatformWString(FPDF_WIDESTRING wstr) {
   return platform_string;
 }
 
+std::vector<std::string> StringSplit(const std::string& str, char delimiter) {
+  std::vector<std::string> result;
+  size_t pos = 0;
+  while (1) {
+    size_t found = str.find(delimiter, pos);
+    if (found == std::string::npos)
+      break;
+
+    result.push_back(str.substr(pos, found - pos));
+    pos = found + 1;
+  }
+  result.push_back(str.substr(pos));
+  return result;
+}
+
 std::unique_ptr<unsigned short, pdfium::FreeDeleter> GetFPDFWideString(
     const std::wstring& wstr) {
   size_t length = sizeof(uint16_t) * (wstr.length() + 1);
diff --git a/testing/test_support.h b/testing/test_support.h
index 4b716ae772..fdb24fe61b 100644
--- a/testing/test_support.h
+++ b/testing/test_support.h
@@ -8,6 +8,7 @@
 #include <stdlib.h>
 #include <memory>
 #include <string>
+#include <vector>
 
 #include "public/fpdf_save.h"
 #include "public/fpdfview.h"
@@ -63,6 +64,8 @@ struct FreeDeleter {
 std::unique_ptr<char, pdfium::FreeDeleter> GetFileContents(const char* filename,
                                                            size_t* retlen);
 
+std::vector<std::string> StringSplit(const std::string& str, char delimiter);
+
 // Converts a FPDF_WIDESTRING to a std::wstring.
 // Deals with differences between UTF16LE and wchar_t.
 std::wstring GetPlatformWString(const FPDF_WIDESTRING wstr);