1// Copyright 2013 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 "chrome/browser/ui/app_list/profile_loader.h"
6
7#include "base/bind.h"
8#include "base/files/file_path.h"
9#include "chrome/browser/apps/scoped_keep_alive.h"
10#include "chrome/browser/ui/app_list/profile_store.h"
11
12ProfileLoader::ProfileLoader(ProfileStore* profile_store)
13    : profile_store_(profile_store),
14      profile_load_sequence_id_(0),
15      pending_profile_loads_(0),
16      weak_factory_(this) {
17}
18
19ProfileLoader::~ProfileLoader() {
20}
21
22bool ProfileLoader::IsAnyProfileLoading() const {
23  return pending_profile_loads_ > 0;
24}
25
26void ProfileLoader::InvalidatePendingProfileLoads() {
27  ++profile_load_sequence_id_;
28}
29
30void ProfileLoader::LoadProfileInvalidatingOtherLoads(
31    const base::FilePath& profile_file_path,
32    base::Callback<void(Profile*)> callback) {
33  InvalidatePendingProfileLoads();
34
35  Profile* profile = profile_store_->GetProfileByPath(profile_file_path);
36  if (profile) {
37    callback.Run(profile);
38    return;
39  }
40
41  IncrementPendingProfileLoads();
42  profile_store_->LoadProfileAsync(
43      profile_file_path,
44      base::Bind(&ProfileLoader::OnProfileLoaded,
45                 weak_factory_.GetWeakPtr(),
46                 profile_load_sequence_id_,
47                 callback));
48}
49
50void ProfileLoader::OnProfileLoaded(int profile_load_sequence_id,
51                                    base::Callback<void(Profile*)> callback,
52                                    Profile* profile) {
53  DecrementPendingProfileLoads();
54  if (profile_load_sequence_id == profile_load_sequence_id_)
55    callback.Run(profile);
56}
57
58void ProfileLoader::IncrementPendingProfileLoads() {
59  pending_profile_loads_++;
60  if (pending_profile_loads_ == 1)
61    keep_alive_.reset(new ScopedKeepAlive);
62}
63
64void ProfileLoader::DecrementPendingProfileLoads() {
65  pending_profile_loads_--;
66  if (pending_profile_loads_ == 0)
67    keep_alive_.reset();
68}
69