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/public/browser/font_list_async.h" 6 7#include "base/bind.h" 8#include "base/values.h" 9#include "content/common/font_list.h" 10#include "content/public/browser/browser_thread.h" 11 12namespace content { 13 14namespace { 15 16// Just executes the given callback with the parameter. 17void ReturnFontListToOriginalThread( 18 const base::Callback<void(scoped_ptr<base::ListValue>)>& callback, 19 scoped_ptr<base::ListValue> result) { 20 callback.Run(result.Pass()); 21} 22 23void GetFontListInBlockingPool( 24 BrowserThread::ID calling_thread_id, 25 const base::Callback<void(scoped_ptr<base::ListValue>)>& callback) { 26 scoped_ptr<base::ListValue> result(GetFontList_SlowBlocking()); 27 BrowserThread::PostTask(calling_thread_id, FROM_HERE, 28 base::Bind(&ReturnFontListToOriginalThread, callback, 29 base::Passed(&result))); 30} 31 32} // namespace 33 34void GetFontListAsync( 35 const base::Callback<void(scoped_ptr<base::ListValue>)>& callback) { 36 BrowserThread::ID id; 37 bool well_known_thread = BrowserThread::GetCurrentThreadIdentifier(&id); 38 DCHECK(well_known_thread) 39 << "Can only call GetFontList from a well-known thread."; 40 41 BrowserThread::PostBlockingPoolSequencedTask( 42 kFontListSequenceToken, 43 FROM_HERE, 44 base::Bind(&GetFontListInBlockingPool, id, callback)); 45} 46 47} // namespace content 48