1// Copyright (c) 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/browser_iterator.h"
6
7namespace chrome {
8
9BrowserIterator::BrowserIterator()
10    : current_browser_list_(BrowserList::GetInstance(HOST_DESKTOP_TYPE_FIRST)),
11      current_iterator_(current_browser_list_->begin()),
12      next_desktop_type_(
13          static_cast<HostDesktopType>(HOST_DESKTOP_TYPE_FIRST + 1)) {
14  NextBrowserListIfAtEnd();
15}
16
17BrowserIterator::~BrowserIterator() {
18}
19
20void BrowserIterator::Next() {
21  ++current_iterator_;
22  NextBrowserListIfAtEnd();
23}
24
25void BrowserIterator::NextBrowserListIfAtEnd() {
26  // Make sure either |current_iterator_| is valid or done().
27  while (current_iterator_ == current_browser_list_->end() &&
28         next_desktop_type_ < HOST_DESKTOP_TYPE_COUNT) {
29    current_browser_list_ = BrowserList::GetInstance(next_desktop_type_);
30    current_iterator_ = current_browser_list_->begin();
31    next_desktop_type_ = static_cast<HostDesktopType>(next_desktop_type_ + 1);
32  }
33}
34
35}  // namespace chrome
36