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// Copyright 2013 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 "apps/app_shim/app_shim_handler_mac.h"
#include <map>
#include "apps/app_window_registry.h"
#include "base/bind.h"
#include "base/logging.h"
#include "base/memory/singleton.h"
#include "base/message_loop/message_loop.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/lifetime/application_lifetime.h"
#include "chrome/browser/ui/app_list/app_list_service.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "content/public/browser/notification_service.h"
namespace apps {
namespace {
void TerminateIfNoAppWindows() {
bool app_windows_left =
apps::AppWindowRegistry::IsAppWindowRegisteredInAnyProfile(0);
if (!app_windows_left &&
!AppListService::Get(chrome::HOST_DESKTOP_TYPE_NATIVE)
->IsAppListVisible()) {
chrome::AttemptExit();
}
}
class AppShimHandlerRegistry : public content::NotificationObserver {
public:
static AppShimHandlerRegistry* GetInstance() {
return Singleton<AppShimHandlerRegistry,
LeakySingletonTraits<AppShimHandlerRegistry> >::get();
}
AppShimHandler* GetForAppMode(const std::string& app_mode_id) const {
HandlerMap::const_iterator it = handlers_.find(app_mode_id);
if (it != handlers_.end())
return it->second;
return default_handler_;
}
bool SetForAppMode(const std::string& app_mode_id, AppShimHandler* handler) {
bool inserted_or_removed = handler ?
handlers_.insert(HandlerMap::value_type(app_mode_id, handler)).second :
handlers_.erase(app_mode_id) == 1;
DCHECK(inserted_or_removed);
return inserted_or_removed;
}
void SetDefaultHandler(AppShimHandler* handler) {
DCHECK_NE(default_handler_ == NULL, handler == NULL);
default_handler_ = handler;
}
void MaybeTerminate() {
if (!browser_session_running_) {
// Post this to give AppWindows a chance to remove themselves from the
// registry.
base::MessageLoop::current()->PostTask(
FROM_HERE, base::Bind(&TerminateIfNoAppWindows));
}
}
bool ShouldRestoreSession() {
return !browser_session_running_;
}
private:
friend struct DefaultSingletonTraits<AppShimHandlerRegistry>;
typedef std::map<std::string, AppShimHandler*> HandlerMap;
AppShimHandlerRegistry()
: default_handler_(NULL),
browser_session_running_(false) {
registrar_.Add(
this, chrome::NOTIFICATION_BROWSER_OPENED,
content::NotificationService::AllBrowserContextsAndSources());
registrar_.Add(
this, chrome::NOTIFICATION_CLOSE_ALL_BROWSERS_REQUEST,
content::NotificationService::AllBrowserContextsAndSources());
registrar_.Add(
this, chrome::NOTIFICATION_BROWSER_CLOSE_CANCELLED,
content::NotificationService::AllBrowserContextsAndSources());
}
virtual ~AppShimHandlerRegistry() {}
// content::NotificationObserver override:
virtual void Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE {
switch (type) {
case chrome::NOTIFICATION_BROWSER_OPENED:
case chrome::NOTIFICATION_BROWSER_CLOSE_CANCELLED:
browser_session_running_ = true;
break;
case chrome::NOTIFICATION_CLOSE_ALL_BROWSERS_REQUEST:
browser_session_running_ = false;
break;
default:
NOTREACHED();
}
}
HandlerMap handlers_;
AppShimHandler* default_handler_;
content::NotificationRegistrar registrar_;
bool browser_session_running_;
DISALLOW_COPY_AND_ASSIGN(AppShimHandlerRegistry);
};
} // namespace
// static
void AppShimHandler::RegisterHandler(const std::string& app_mode_id,
AppShimHandler* handler) {
DCHECK(handler);
AppShimHandlerRegistry::GetInstance()->SetForAppMode(app_mode_id, handler);
}
// static
void AppShimHandler::RemoveHandler(const std::string& app_mode_id) {
AppShimHandlerRegistry::GetInstance()->SetForAppMode(app_mode_id, NULL);
}
// static
AppShimHandler* AppShimHandler::GetForAppMode(const std::string& app_mode_id) {
return AppShimHandlerRegistry::GetInstance()->GetForAppMode(app_mode_id);
}
// static
void AppShimHandler::SetDefaultHandler(AppShimHandler* handler) {
AppShimHandlerRegistry::GetInstance()->SetDefaultHandler(handler);
}
// static
void AppShimHandler::MaybeTerminate() {
AppShimHandlerRegistry::GetInstance()->MaybeTerminate();
}
// static
bool AppShimHandler::ShouldRestoreSession() {
return AppShimHandlerRegistry::GetInstance()->ShouldRestoreSession();
}
} // namespace apps
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