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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/public/browser/font_list_async.h"
#include "base/bind.h"
#include "base/values.h"
#include "content/common/font_list.h"
#include "content/public/browser/browser_thread.h"
namespace content {
namespace {
// Just executes the given callback with the parameter.
void ReturnFontListToOriginalThread(
const base::Callback<void(scoped_ptr<base::ListValue>)>& callback,
scoped_ptr<base::ListValue> result) {
callback.Run(result.Pass());
}
void GetFontListInBlockingPool(
BrowserThread::ID calling_thread_id,
const base::Callback<void(scoped_ptr<base::ListValue>)>& callback) {
scoped_ptr<base::ListValue> result(GetFontList_SlowBlocking());
BrowserThread::PostTask(calling_thread_id, FROM_HERE,
base::Bind(&ReturnFontListToOriginalThread, callback,
base::Passed(&result)));
}
} // namespace
void GetFontListAsync(
const base::Callback<void(scoped_ptr<base::ListValue>)>& callback) {
BrowserThread::ID id;
bool well_known_thread = BrowserThread::GetCurrentThreadIdentifier(&id);
DCHECK(well_known_thread)
<< "Can only call GetFontList from a well-known thread.";
BrowserThread::PostBlockingPoolSequencedTask(
kFontListSequenceToken,
FROM_HERE,
base::Bind(&GetFontListInBlockingPool, id, callback));
}
} // namespace content
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