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      1 // Copyright 2014 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 "ui/gfx/test/fontconfig_util_linux.h"
      6 
      7 #include <fontconfig/fontconfig.h>
      8 
      9 #include "base/files/file_util.h"
     10 #include "base/logging.h"
     11 #include "base/strings/stringprintf.h"
     12 
     13 namespace gfx {
     14 
     15 const char* const kSystemFontsForFontconfig[] = {
     16   "/usr/share/fonts/truetype/kochi/kochi-gothic.ttf",
     17   "/usr/share/fonts/truetype/kochi/kochi-mincho.ttf",
     18   "/usr/share/fonts/truetype/msttcorefonts/Arial.ttf",
     19   "/usr/share/fonts/truetype/msttcorefonts/Arial_Bold.ttf",
     20   "/usr/share/fonts/truetype/msttcorefonts/Arial_Bold_Italic.ttf",
     21   "/usr/share/fonts/truetype/msttcorefonts/Arial_Italic.ttf",
     22   "/usr/share/fonts/truetype/msttcorefonts/Comic_Sans_MS.ttf",
     23   "/usr/share/fonts/truetype/msttcorefonts/Comic_Sans_MS_Bold.ttf",
     24   "/usr/share/fonts/truetype/msttcorefonts/Courier_New.ttf",
     25   "/usr/share/fonts/truetype/msttcorefonts/Courier_New_Bold.ttf",
     26   "/usr/share/fonts/truetype/msttcorefonts/Courier_New_Bold_Italic.ttf",
     27   "/usr/share/fonts/truetype/msttcorefonts/Courier_New_Italic.ttf",
     28   "/usr/share/fonts/truetype/msttcorefonts/Georgia.ttf",
     29   "/usr/share/fonts/truetype/msttcorefonts/Georgia_Bold.ttf",
     30   "/usr/share/fonts/truetype/msttcorefonts/Georgia_Bold_Italic.ttf",
     31   "/usr/share/fonts/truetype/msttcorefonts/Georgia_Italic.ttf",
     32   "/usr/share/fonts/truetype/msttcorefonts/Impact.ttf",
     33   "/usr/share/fonts/truetype/msttcorefonts/Trebuchet_MS.ttf",
     34   "/usr/share/fonts/truetype/msttcorefonts/Trebuchet_MS_Bold.ttf",
     35   "/usr/share/fonts/truetype/msttcorefonts/Trebuchet_MS_Bold_Italic.ttf",
     36   "/usr/share/fonts/truetype/msttcorefonts/Trebuchet_MS_Italic.ttf",
     37   "/usr/share/fonts/truetype/msttcorefonts/Times_New_Roman.ttf",
     38   "/usr/share/fonts/truetype/msttcorefonts/Times_New_Roman_Bold.ttf",
     39   "/usr/share/fonts/truetype/msttcorefonts/Times_New_Roman_Bold_Italic.ttf",
     40   "/usr/share/fonts/truetype/msttcorefonts/Times_New_Roman_Italic.ttf",
     41   "/usr/share/fonts/truetype/msttcorefonts/Verdana.ttf",
     42   "/usr/share/fonts/truetype/msttcorefonts/Verdana_Bold.ttf",
     43   "/usr/share/fonts/truetype/msttcorefonts/Verdana_Bold_Italic.ttf",
     44   "/usr/share/fonts/truetype/msttcorefonts/Verdana_Italic.ttf",
     45   // The DejaVuSans font is used by the css2.1 tests.
     46   "/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf",
     47   "/usr/share/fonts/truetype/ttf-indic-fonts-core/lohit_hi.ttf",
     48   "/usr/share/fonts/truetype/ttf-indic-fonts-core/lohit_ta.ttf",
     49   "/usr/share/fonts/truetype/ttf-indic-fonts-core/MuktiNarrow.ttf",
     50 };
     51 
     52 const size_t kNumSystemFontsForFontconfig =
     53     arraysize(kSystemFontsForFontconfig);
     54 
     55 const char kFontconfigFileHeader[] =
     56     "<?xml version=\"1.0\"?>\n"
     57     "<!DOCTYPE fontconfig SYSTEM \"fonts.dtd\">\n"
     58     "<fontconfig>\n";
     59 const char kFontconfigFileFooter[] = "</fontconfig>";
     60 const char kFontconfigMatchHeader[] = "  <match>\n";
     61 const char kFontconfigMatchFooter[] = "  </match>\n";
     62 
     63 void SetUpFontconfig() {
     64   FcInit();
     65 
     66   // A primer on undocumented FcConfig reference-counting:
     67   //
     68   // - FcConfigCreate() creates a config with a refcount of 1.
     69   // - FcConfigReference() increments a config's refcount.
     70   // - FcConfigDestroy() decrements a config's refcount, deallocating the
     71   //   config when the count reaches 0.
     72   // - FcConfigSetCurrent() calls FcConfigDestroy() on the old config, but
     73   //   interestingly does not call FcConfigReference() on the new config.
     74   CHECK(FcConfigSetCurrent(FcConfigCreate()));
     75 }
     76 
     77 void TearDownFontconfig() {
     78   FcFini();
     79 }
     80 
     81 bool LoadFontIntoFontconfig(const base::FilePath& path) {
     82   if (!base::PathExists(path)) {
     83     LOG(ERROR) << "You are missing " << path.value() << ". Try re-running "
     84                << "build/install-build-deps.sh. Also see "
     85                << "http://code.google.com/p/chromium/wiki/LayoutTestsLinux";
     86     return false;
     87   }
     88 
     89   if (!FcConfigAppFontAddFile(
     90           NULL, reinterpret_cast<const FcChar8*>(path.value().c_str()))) {
     91     LOG(ERROR) << "Failed to load font " << path.value();
     92     return false;
     93   }
     94 
     95   return true;
     96 }
     97 
     98 bool LoadConfigFileIntoFontconfig(const base::FilePath& path) {
     99   // Unlike other FcConfig functions, FcConfigParseAndLoad() doesn't default to
    100   // the current config when passed NULL. So that's cool.
    101   if (!FcConfigParseAndLoad(FcConfigGetCurrent(),
    102           reinterpret_cast<const FcChar8*>(path.value().c_str()), FcTrue)) {
    103     LOG(ERROR) << "Fontconfig failed to load " << path.value();
    104     return false;
    105   }
    106   return true;
    107 }
    108 
    109 bool LoadConfigDataIntoFontconfig(const base::FilePath& temp_dir,
    110                                   const std::string& data) {
    111   base::FilePath path;
    112   if (!CreateTemporaryFileInDir(temp_dir, &path)) {
    113     PLOG(ERROR) << "Unable to create temporary file in " << temp_dir.value();
    114     return false;
    115   }
    116   if (base::WriteFile(path, data.data(), data.size()) !=
    117       static_cast<int>(data.size())) {
    118     PLOG(ERROR) << "Unable to write config data to " << path.value();
    119     return false;
    120   }
    121   return LoadConfigFileIntoFontconfig(path);
    122 }
    123 
    124 std::string CreateFontconfigEditStanza(const std::string& name,
    125                                        const std::string& type,
    126                                        const std::string& value) {
    127   return base::StringPrintf(
    128       "    <edit name=\"%s\" mode=\"assign\">\n"
    129       "      <%s>%s</%s>\n"
    130       "    </edit>\n",
    131       name.c_str(), type.c_str(), value.c_str(), type.c_str());
    132 }
    133 
    134 std::string CreateFontconfigTestStanza(const std::string& name,
    135                                        const std::string& op,
    136                                        const std::string& type,
    137                                        const std::string& value) {
    138   return base::StringPrintf(
    139       "    <test name=\"%s\" compare=\"%s\" qual=\"any\">\n"
    140       "      <%s>%s</%s>\n"
    141       "    </test>\n",
    142       name.c_str(), op.c_str(), type.c_str(), value.c_str(), type.c_str());
    143 }
    144 
    145 std::string CreateFontconfigAliasStanza(const std::string& original_family,
    146                                         const std::string& preferred_family) {
    147   return base::StringPrintf(
    148       "  <alias>\n"
    149       "    <family>%s</family>\n"
    150       "    <prefer><family>%s</family></prefer>\n"
    151       "  </alias>\n",
    152       original_family.c_str(), preferred_family.c_str());
    153 }
    154 
    155 }  // namespace gfx
    156