pinned_tab_service.cc revision ddb351dbec246cf1fab5ec20d2d5520909041de1 
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 "chrome/browser/tabs/pinned_tab_service.h"
6
7#include "chrome/browser/profiles/profile.h"
8#include "chrome/browser/tabs/pinned_tab_codec.h"
9#include "chrome/browser/ui/browser.h"
10#include "chrome/browser/ui/browser_list.h"
11#include "content/common/notification_service.h"
12#include "content/common/notification_type.h"
13
14static bool IsLastNormalBrowser(Browser* browser) {
15  for (BrowserList::const_iterator i = BrowserList::begin();
16       i != BrowserList::end(); ++i) {
17    if (*i != browser && (*i)->type() == Browser::TYPE_NORMAL &&
18        (*i)->profile() == browser->profile()) {
19      return false;
20    }
21  }
22  return true;
23}
24
25PinnedTabService::PinnedTabService(Profile* profile)
26    : profile_(profile),
27      got_exiting_(false),
28      has_normal_browser_(false) {
29  registrar_.Add(this, NotificationType::BROWSER_OPENED,
30                 NotificationService::AllSources());
31  registrar_.Add(this, NotificationType::BROWSER_CLOSING,
32                 NotificationService::AllSources());
33  registrar_.Add(this, NotificationType::APP_EXITING,
34                 NotificationService::AllSources());
35}
36
37void PinnedTabService::Observe(NotificationType type,
38                               const NotificationSource& source,
39                               const NotificationDetails& details) {
40  if (got_exiting_)
41    return;
42
43  switch (type.value) {
44    case NotificationType::BROWSER_OPENED: {
45      Browser* browser = Source<Browser>(source).ptr();
46      if (!has_normal_browser_ && browser->type() == Browser::TYPE_NORMAL &&
47          browser->profile() == profile_) {
48        has_normal_browser_ = true;
49      }
50      break;
51    }
52
53    case NotificationType::BROWSER_CLOSING: {
54      Browser* browser = Source<Browser>(source).ptr();
55      if (has_normal_browser_ && browser->profile() == profile_) {
56        if (*(Details<bool>(details)).ptr()) {
57          GotExit();
58        } else if (IsLastNormalBrowser(browser)) {
59          has_normal_browser_ = false;
60          PinnedTabCodec::WritePinnedTabs(profile_);
61        }
62      }
63      break;
64    }
65
66    case NotificationType::APP_EXITING: {
67      if (has_normal_browser_)
68        GotExit();
69      break;
70    }
71
72    default:
73      NOTREACHED();
74  }
75}
76
77void PinnedTabService::GotExit() {
78  DCHECK(!got_exiting_);
79  got_exiting_ = true;
80  PinnedTabCodec::WritePinnedTabs(profile_);
81}
82