content/shell/webkit_test_platform_support_win.cc

   1 // Copyright (c) 2012 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/webkit_test_platform_support.h"
   6
   7 #include <iostream>
   8 #include <list>
   9 #include <string>
  10 #include <windows.h>
  11
  12 #include "base/files/file_path.h"
  13 #include "base/file_util.h"
  14 #include "base/logging.h"
  15 #include "base/path_service.h"
  16 #include "base/utf_string_conversions.h"
  17
  18 #define SIZEOF_STRUCT_WITH_SPECIFIED_LAST_MEMBER(struct_name, member) \
  19     offsetof(struct_name, member) + \
  20     (sizeof static_cast<struct_name*>(0)->member)
  21 #define NONCLIENTMETRICS_SIZE_PRE_VISTA \
  22     SIZEOF_STRUCT_WITH_SPECIFIED_LAST_MEMBER(NONCLIENTMETRICS, lfMessageFont)
  23
  24 namespace content {
  25
  26 namespace {
  27
  28 bool SetupFonts() {
  29   // Load Ahem font.
  30   // AHEM____.TTF is copied to the directory of DumpRenderTree.exe by
  31   // WebKit.gyp.
  32   base::FilePath base_path;
  33   PathService::Get(base::DIR_MODULE, &base_path);
  34   base::FilePath font_path =
  35       base_path.Append(FILE_PATH_LITERAL("/AHEM____.TTF"));
  36
  37   std::string font_buffer;
  38   if (!file_util::ReadFileToString(font_path, &font_buffer)) {
  39     std::cerr << "Failed to load font " << WideToUTF8(font_path.value())
  40               << "\n";
  41     return false;
  42   }
  43
  44   DWORD num_fonts = 1;
  45   HANDLE font_handle =
  46       ::AddFontMemResourceEx(const_cast<char*>(font_buffer.c_str()),
  47                              font_buffer.length(),
  48                              0,
  49                              &num_fonts);
  50   if (!font_handle) {
  51     std::cerr << "Failed to register Ahem font\n";
  52     return false;
  53   }
  54   return true;
  55 }
  56
  57 bool CheckLayoutTestSystemDependencies() {
  58   std::list<std::string> errors;
  59
  60   // This metric will be 17 when font size is "Normal".
  61   // The size of drop-down menus depends on it.
  62   if (::GetSystemMetrics(SM_CXVSCROLL) != 17)
  63     errors.push_back("Must use normal size fonts (96 dpi).");
  64
  65   // ClearType must be disabled, because the rendering is unpredictable.
  66   BOOL font_smoothing_enabled;
  67   ::SystemParametersInfo(SPI_GETFONTSMOOTHING, 0, &font_smoothing_enabled, 0);
  68   int font_smoothing_type;
  69   ::SystemParametersInfo(SPI_GETFONTSMOOTHINGTYPE, 0, &font_smoothing_type, 0);
  70   if (font_smoothing_enabled &&
  71       (font_smoothing_type == FE_FONTSMOOTHINGCLEARTYPE))
  72     errors.push_back("ClearType must be disabled.");
  73
  74   // Check that we're using the default system fonts.
  75   OSVERSIONINFO version_info = {0};
  76   version_info.dwOSVersionInfoSize = sizeof(version_info);
  77   ::GetVersionEx(&version_info);
  78   bool is_vista_or_later = (version_info.dwMajorVersion >= 6);
  79   NONCLIENTMETRICS metrics = {0};
  80   metrics.cbSize = is_vista_or_later ? (sizeof NONCLIENTMETRICS)
  81                                      : NONCLIENTMETRICS_SIZE_PRE_VISTA;
  82   bool success = !!::SystemParametersInfo(
  83       SPI_GETNONCLIENTMETRICS, metrics.cbSize, &metrics, 0);
  84   CHECK(success);
  85   LOGFONTW* system_fonts[] =
  86       {&metrics.lfStatusFont, &metrics.lfMenuFont, &metrics.lfSmCaptionFont};
  87   const wchar_t* required_font = is_vista_or_later ? L"Segoe UI" : L"Tahoma";
  88   int required_font_size = is_vista_or_later ? -12 : -11;
  89   for (size_t i = 0; i < arraysize(system_fonts); ++i) {
  90     if (system_fonts[i]->lfHeight != required_font_size ||
  91         wcscmp(required_font, system_fonts[i]->lfFaceName)) {
  92       errors.push_back(is_vista_or_later
  93                            ? "Must use either the Aero or Basic theme."
  94                            : "Must use the default XP theme (Luna).");
  95       break;
  96     }
  97   }
  98
  99   for (std::list<std::string>::iterator it = errors.begin(); it != errors.end();
 100        ++it) {
 101     std::cerr << *it << "\n";
 102   }
 103   return errors.empty();
 104 }
 105
 106 }  // namespace
 107
 108 bool WebKitTestPlatformInitialize() {
 109   return CheckLayoutTestSystemDependencies() && SetupFonts();
 110 }
 111
 112 }  // namespace content