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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 "base/bind.h"
#include "base/command_line.h"
#include "base/mac/mac_util.h"
#include "base/prefs/pref_service.h"
#include "chrome/browser/background/background_mode_manager.h"
#include "chrome/browser/browser_process.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pref_names.h"
#include "chrome/grit/generated_resources.h"
#include "content/public/browser/browser_thread.h"
#include "ui/base/l10n/l10n_util.h"
using content::BrowserThread;
namespace {
void SetUserRemovedLoginItemPrefOnUIThread() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
PrefService* service = g_browser_process->local_state();
service->SetBoolean(prefs::kUserRemovedLoginItem, true);
}
void SetCreatedLoginItemPrefOnUIThread() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
PrefService* service = g_browser_process->local_state();
service->SetBoolean(prefs::kChromeCreatedLoginItem, true);
}
void DisableLaunchOnStartupOnFileThread() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::FILE));
// If the LoginItem is not hidden, it means it's user created, so don't
// delete it.
bool is_hidden = false;
if (base::mac::CheckLoginItemStatus(&is_hidden) && is_hidden)
base::mac::RemoveFromLoginItems();
}
void CheckForUserRemovedLoginItemOnFileThread() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::FILE));
if (!base::mac::CheckLoginItemStatus(NULL)) {
// There's no LoginItem, so set the kUserRemovedLoginItem pref.
BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
base::Bind(SetUserRemovedLoginItemPrefOnUIThread));
}
}
void EnableLaunchOnStartupOnFileThread(bool need_migration) {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::FILE));
if (need_migration) {
// This is the first time running Chrome since the kChromeCreatedLoginItem
// pref was added. Initialize the status of this pref based on whether
// there is already a hidden login item.
bool is_hidden = false;
if (base::mac::CheckLoginItemStatus(&is_hidden)) {
if (is_hidden) {
// We already have a hidden login item, so set the kChromeCreatedLoginItem
// flag.
BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
base::Bind(SetCreatedLoginItemPrefOnUIThread));
}
// LoginItem already exists - just exit.
return;
}
}
// Check if Chrome is already a Login Item - if not, create one.
if (!base::mac::CheckLoginItemStatus(NULL)) {
// Call back to the UI thread to set our preference so we know that Chrome
// created the login item (which means we are allowed to delete it later).
// There's a race condition here if the user disables launch on startup
// before our callback is run, but the user can manually disable
// "Open At Login" via the dock if this happens.
base::mac::AddToLoginItems(true); // Hide on startup.
BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
base::Bind(SetCreatedLoginItemPrefOnUIThread));
}
}
} // namespace
void BackgroundModeManager::EnableLaunchOnStartup(bool should_launch) {
// LoginItems are associated with an executable, not with a specific
// user-data-dir, so only mess with the LoginItem when running with the
// default user-data-dir. So if a user is running multiple instances of
// Chrome with different user-data-dirs, they won't conflict in their
// use of LoginItems.
if (base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kUserDataDir))
return;
// There are a few cases we need to handle:
//
// 1) Chrome is transitioning to "launch on startup" state, and there's no
// login item currently. We create a new item if the kUserRemovedLoginItem
// and kChromeCreatedLoginItem flags are already false, and set the
// kChromeCreatedLoginItem flag to true. If kChromeCreatedLoginItem is
// already set (meaning that we created a login item that has since been
// deleted) then we will set the kUserRemovedLoginItem so we do not create
// login items in the future.
//
// 2) Chrome is transitioning to the "do not launch on startup" state. If
// the kChromeCreatedLoginItem flag is false, we do nothing. Otherwise, we
// will delete the login item if it's present, and not we will set
// kUserRemovedLoginItem to true to prevent future login items from being
// created.
if (should_launch) {
PrefService* service = g_browser_process->local_state();
// If the user removed the login item, don't ever create another one.
if (service->GetBoolean(prefs::kUserRemovedLoginItem))
return;
if (service->GetBoolean(prefs::kChromeCreatedLoginItem)) {
DCHECK(service->GetBoolean(prefs::kMigratedLoginItemPref));
// If we previously created a login item, we don't need to create
// a new one - just check to see if the user removed it so we don't
// ever create another one.
BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
base::Bind(
CheckForUserRemovedLoginItemOnFileThread));
} else {
bool need_migration = !service->GetBoolean(
prefs::kMigratedLoginItemPref);
service->SetBoolean(prefs::kMigratedLoginItemPref, true);
BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
base::Bind(EnableLaunchOnStartupOnFileThread,
need_migration));
}
} else {
PrefService* service = g_browser_process->local_state();
// If Chrome didn't create any login items, just exit.
if (!service->GetBoolean(prefs::kChromeCreatedLoginItem))
return;
// Clear the pref now that we're removing the login item.
service->ClearPref(prefs::kChromeCreatedLoginItem);
// If the user removed our login item, note this so we don't ever create
// another one.
BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
base::Bind(
CheckForUserRemovedLoginItemOnFileThread));
// Call to the File thread to remove the login item since it requires
// accessing the disk.
BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
base::Bind(DisableLaunchOnStartupOnFileThread));
}
}
void BackgroundModeManager::DisplayAppInstalledNotification(
const extensions::Extension* extension) {
// TODO(atwilson): Display a platform-appropriate notification here.
// http://crbug.com/74970
}
base::string16 BackgroundModeManager::GetPreferencesMenuLabel() {
return l10n_util::GetStringUTF16(IDS_OPTIONS);
}
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