content/shell/app/blink_test_platform_support_win.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/shell/app/blink_test_platform_support.h"
   6
   7 #include <windows.h>
   8 #include <iostream>
   9 #include <list>
  10 #include <string>
  11
  12 #include "base/command_line.h"
  13 #include "base/files/file_path.h"
  14 #include "base/files/file_util.h"
  15 #include "base/logging.h"
  16 #include "base/path_service.h"
  17 #include "base/strings/utf_string_conversions.h"
  18 #include "content/shell/common/shell_switches.h"
  19
  20 #define SIZEOF_STRUCT_WITH_SPECIFIED_LAST_MEMBER(struct_name, member) \
  21     offsetof(struct_name, member) + \
  22     (sizeof static_cast<struct_name*>(0)->member)
  23 #define NONCLIENTMETRICS_SIZE_PRE_VISTA \
  24     SIZEOF_STRUCT_WITH_SPECIFIED_LAST_MEMBER(NONCLIENTMETRICS, lfMessageFont)
  25
  26 namespace content {
  27
  28 namespace {
  29
  30 bool SetupFonts() {
  31   // Load Ahem font.
  32   // AHEM____.TTF is copied to the directory of DumpRenderTree.exe by
  33   // WebKit.gyp.
  34   base::FilePath base_path;
  35   PathService::Get(base::DIR_MODULE, &base_path);
  36   base::FilePath font_path =
  37       base_path.Append(FILE_PATH_LITERAL("/AHEM____.TTF"));
  38
  39   // We do two registrations:
  40   // 1. For GDI font rendering via ::AddFontMemResourceEx.
  41   // 2. For DirectWrite rendering by appending a command line flag that tells
  42   //    the sandbox policy/warmup to grant access to the given path.
  43
  44   // GDI registration.
  45   std::string font_buffer;
  46   if (!base::ReadFileToString(font_path, &font_buffer)) {
  47     std::cerr << "Failed to load font " << base::WideToUTF8(font_path.value())
  48               << "\n";
  49     return false;
  50   }
  51
  52   DWORD num_fonts = 1;
  53   HANDLE font_handle =
  54       ::AddFontMemResourceEx(const_cast<char*>(font_buffer.c_str()),
  55                              font_buffer.length(),
  56                              0,
  57                              &num_fonts);
  58   if (!font_handle) {
  59     std::cerr << "Failed to register Ahem font\n";
  60     return false;
  61   }
  62
  63   // DirectWrite sandbox registration.
  64   base::CommandLine& command_line = *base::CommandLine::ForCurrentProcess();
  65   command_line.AppendSwitchASCII(switches::kRegisterFontFiles,
  66                                  base::WideToUTF8(font_path.value()));
  67
  68   return true;
  69 }
  70
  71 }  // namespace
  72
  73 bool CheckLayoutSystemDeps() {
  74   std::list<std::string> errors;
  75
  76   // This metric will be 17 when font size is "Normal".
  77   // The size of drop-down menus depends on it.
  78   if (::GetSystemMetrics(SM_CXVSCROLL) != 17)
  79     errors.push_back("Must use normal size fonts (96 dpi).");
  80
  81   // Check that we're using the default system fonts.
  82   OSVERSIONINFO version_info = {0};
  83   version_info.dwOSVersionInfoSize = sizeof(version_info);
  84   ::GetVersionEx(&version_info);
  85   bool is_vista_or_later = (version_info.dwMajorVersion >= 6);
  86   NONCLIENTMETRICS metrics = {0};
  87   metrics.cbSize = is_vista_or_later ? sizeof(NONCLIENTMETRICS)
  88                                      : NONCLIENTMETRICS_SIZE_PRE_VISTA;
  89   bool success = !!::SystemParametersInfo(
  90       SPI_GETNONCLIENTMETRICS, metrics.cbSize, &metrics, 0);
  91   CHECK(success);
  92   LOGFONTW* system_fonts[] =
  93       {&metrics.lfStatusFont, &metrics.lfMenuFont, &metrics.lfSmCaptionFont};
  94   const wchar_t* required_font = is_vista_or_later ? L"Segoe UI" : L"Tahoma";
  95   int required_font_size = is_vista_or_later ? -12 : -11;
  96   for (size_t i = 0; i < arraysize(system_fonts); ++i) {
  97     if (system_fonts[i]->lfHeight != required_font_size ||
  98         wcscmp(required_font, system_fonts[i]->lfFaceName)) {
  99       errors.push_back(is_vista_or_later
 100                            ? "Must use either the Aero or Basic theme."
 101                            : "Must use the default XP theme (Luna).");
 102       break;
 103     }
 104   }
 105
 106   for (std::list<std::string>::iterator it = errors.begin(); it != errors.end();
 107        ++it) {
 108     std::cerr << *it << "\n";
 109   }
 110   return errors.empty();
 111 }
 112
 113 bool BlinkTestPlatformInitialize() {
 114   return SetupFonts();
 115 }
 116
 117 }  // namespace content