content/common/font_list_win.cc

   1 // Copyright (c) 2011 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/common/font_list.h"
   6
   7 #include <windows.h>
   8
   9 #include <set>
  10
  11 #include "base/strings/string16.h"
  12 #include "base/values.h"
  13
  14 namespace content {
  15
  16 static int CALLBACK EnumFontFamExProc(ENUMLOGFONTEXW* logical_font,
  17                                       NEWTEXTMETRICEXW* physical_font,
  18                                       DWORD font_type,
  19                                       LPARAM lparam) {
  20   std::set<string16>* font_names =
  21       reinterpret_cast<std::set<string16>*>(lparam);
  22   if (font_names) {
  23     const LOGFONTW& lf = logical_font->elfLogFont;
  24     if (lf.lfFaceName[0] && lf.lfFaceName[0] != '@') {
  25       string16 face_name(lf.lfFaceName);
  26       font_names->insert(face_name);
  27     }
  28   }
  29   return 1;
  30 }
  31
  32 scoped_ptr<base::ListValue> GetFontList_SlowBlocking() {
  33   std::set<string16> font_names;
  34
  35   LOGFONTW logfont;
  36   memset(&logfont, 0, sizeof(logfont));
  37   logfont.lfCharSet = DEFAULT_CHARSET;
  38
  39   HDC hdc = ::GetDC(NULL);
  40   ::EnumFontFamiliesExW(hdc, &logfont, (FONTENUMPROCW)&EnumFontFamExProc,
  41                         (LPARAM)&font_names, 0);
  42   ::ReleaseDC(NULL, hdc);
  43
  44   scoped_ptr<base::ListValue> font_list(new base::ListValue);
  45   std::set<string16>::iterator iter;
  46   for (iter = font_names.begin(); iter != font_names.end(); ++iter) {
  47     base::ListValue* font_item = new base::ListValue();
  48     font_item->Append(new base::StringValue(*iter));
  49     font_item->Append(new base::StringValue(*iter));
  50     font_list->Append(font_item);
  51   }
  52   return font_list.Pass();
  53 }
  54
  55 }  // namespace content