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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "apps/app_restore_service.h"
#include "apps/app_lifetime_monitor_factory.h"
#include "apps/app_restore_service_factory.h"
#include "apps/launcher.h"
#include "apps/saved_files_service.h"
#include "build/build_config.h"
#include "content/public/browser/browser_context.h"
#include "extensions/browser/app_window/app_window.h"
#include "extensions/browser/extension_host.h"
#include "extensions/browser/extension_prefs.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/common/extension.h"
#include "extensions/common/extension_id.h"
#include "extensions/common/extension_set.h"
using extensions::Extension;
using extensions::ExtensionHost;
using extensions::ExtensionPrefs;
using extensions::ExtensionRegistry;
namespace apps {
// static
bool AppRestoreService::ShouldRestoreApps(bool is_browser_restart) {
bool should_restore_apps = is_browser_restart;
#if BUILDFLAG(IS_CHROMEOS)
// ChromeOS always restarts apps, even if it was a regular shutdown.
should_restore_apps = true;
#endif
return should_restore_apps;
}
AppRestoreService::AppRestoreService(content::BrowserContext* context)
: context_(context) {
StartObservingAppLifetime();
}
void AppRestoreService::HandleStartup(bool should_restore_apps) {
const extensions::ExtensionSet& extensions =
ExtensionRegistry::Get(context_)->enabled_extensions();
ExtensionPrefs* extension_prefs = ExtensionPrefs::Get(context_);
for (extensions::ExtensionSet::const_iterator it = extensions.begin();
it != extensions.end(); ++it) {
const Extension* extension = it->get();
if (extension_prefs->IsExtensionRunning(extension->id())) {
RecordAppStop(extension->id());
// If we are not restoring apps (e.g., because it is a clean restart), and
// the app does not have retain permission, explicitly clear the retained
// entries queue.
if (should_restore_apps) {
RestoreApp(it->get());
} else {
SavedFilesService::Get(context_)->ClearQueueIfNoRetainPermission(
extension);
}
}
}
}
bool AppRestoreService::IsAppRestorable(
const extensions::ExtensionId& extension_id) {
return ExtensionPrefs::Get(context_)->IsExtensionRunning(extension_id);
}
void AppRestoreService::OnApplicationTerminating() {
// We want to preserve the state when the app begins terminating, so stop
// listening to app lifetime events.
StopObservingAppLifetime();
}
// static
AppRestoreService* AppRestoreService::Get(content::BrowserContext* context) {
return apps::AppRestoreServiceFactory::GetForBrowserContext(context);
}
void AppRestoreService::OnAppStart(
content::BrowserContext* context,
const extensions::ExtensionId& extension_id) {
RecordAppStart(extension_id);
}
void AppRestoreService::OnAppActivated(
content::BrowserContext* context,
const extensions::ExtensionId& extension_id) {
RecordAppActiveState(extension_id, true);
}
void AppRestoreService::OnAppDeactivated(
content::BrowserContext* context,
const extensions::ExtensionId& extension_id) {
RecordAppActiveState(extension_id, false);
}
void AppRestoreService::OnAppStop(content::BrowserContext* context,
const extensions::ExtensionId& extension_id) {
RecordAppStop(extension_id);
}
void AppRestoreService::Shutdown() {
StopObservingAppLifetime();
}
void AppRestoreService::RecordAppStart(
const extensions::ExtensionId& extension_id) {
ExtensionPrefs::Get(context_)->SetExtensionRunning(extension_id, true);
}
void AppRestoreService::RecordAppStop(
const extensions::ExtensionId& extension_id) {
ExtensionPrefs::Get(context_)->SetExtensionRunning(extension_id, false);
}
void AppRestoreService::RecordAppActiveState(
const extensions::ExtensionId& extension_id,
bool is_active) {
ExtensionPrefs* extension_prefs = ExtensionPrefs::Get(context_);
// If the extension isn't running then we will already have recorded whether
// it is active or not.
if (!extension_prefs->IsExtensionRunning(extension_id)) {
return;
}
extension_prefs->SetIsActive(extension_id, is_active);
}
void AppRestoreService::RestoreApp(const Extension* extension) {
RestartPlatformApp(context_, extension);
}
void AppRestoreService::StartObservingAppLifetime() {
AppLifetimeMonitor* app_lifetime_monitor =
AppLifetimeMonitorFactory::GetForBrowserContext(context_);
DCHECK(app_lifetime_monitor);
app_lifetime_monitor->AddObserver(this);
}
void AppRestoreService::StopObservingAppLifetime() {
AppLifetimeMonitor* app_lifetime_monitor =
AppLifetimeMonitorFactory::GetForBrowserContext(context_);
// This might be NULL in tests.
if (app_lifetime_monitor)
app_lifetime_monitor->RemoveObserver(this);
}
} // namespace apps
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