content/public/browser/font_list_async.h

   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 #ifndef CONTENT_PUBLIC_BROWSER_FONT_LIST_ASYNC_H_
   6 #define CONTENT_PUBLIC_BROWSER_FONT_LIST_ASYNC_H_
   7
   8 #include "base/callback_forward.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "content/common/content_export.h"
  11
  12 namespace base {
  13 class ListValue;
  14 }
  15
  16 namespace content {
  17
  18 // Retrieves the list of fonts on the system as a list of strings. It provides
  19 // a non-blocking interface to GetFontList_SlowBlocking in common/.
  20 //
  21 // This function will run asynchronously on a background thread since getting
  22 // the font list from the system can be slow. This function may be called from
  23 // any thread that has a BrowserThread::ID. The callback will be executed on
  24 // the calling thread.
  25 CONTENT_EXPORT void GetFontListAsync(
  26     const base::Callback<void(scoped_ptr<base::ListValue>)>& callback);
  27
  28 }  // namespace content
  29
  30 #endif  // CONTENT_PUBLIC_BROWSER_FONT_LIST_ASYNC_H_