| // 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_launcher.h" |
| |
| #include "apps/pref_names.h" |
| #include "apps/switches.h" |
| #include "base/command_line.h" |
| #include "base/prefs/pref_registry_simple.h" |
| #include "base/prefs/pref_service.h" |
| #include "base/threading/sequenced_worker_pool.h" |
| #include "chrome/browser/browser_process.h" |
| #include "chrome/browser/ui/host_desktop.h" |
| #include "content/public/browser/browser_thread.h" |
| |
| #if defined(OS_WIN) |
| #include "chrome/installer/launcher_support/chrome_launcher_support.h" |
| #include "chrome/installer/util/browser_distribution.h" |
| #endif |
| |
| namespace apps { |
| |
| namespace { |
| |
| enum AppLauncherState { |
| APP_LAUNCHER_UNKNOWN, |
| APP_LAUNCHER_ENABLED, |
| APP_LAUNCHER_DISABLED, |
| }; |
| |
| AppLauncherState SynchronousAppLauncherChecks() { |
| #if defined(USE_ASH) && !defined(OS_WIN) |
| return APP_LAUNCHER_ENABLED; |
| #elif !defined(OS_WIN) |
| return APP_LAUNCHER_DISABLED; |
| #else |
| if (CommandLine::ForCurrentProcess()->HasSwitch( |
| switches::kShowAppListShortcut)) { |
| return APP_LAUNCHER_ENABLED; |
| } |
| |
| #if defined(USE_ASH) |
| if (chrome::GetActiveDesktop() == chrome::HOST_DESKTOP_TYPE_ASH) |
| return APP_LAUNCHER_ENABLED; |
| #endif |
| |
| if (!BrowserDistribution::GetDistribution()->AppHostIsSupported()) |
| return APP_LAUNCHER_DISABLED; |
| |
| return APP_LAUNCHER_UNKNOWN; |
| #endif |
| } |
| |
| #if defined(OS_WIN) |
| void UpdatePrefAndCallCallbackOnUI( |
| bool result, |
| const OnAppLauncherEnabledCompleted& completion_callback) { |
| PrefService* prefs = g_browser_process->local_state(); |
| prefs->SetBoolean(prefs::kAppLauncherIsEnabled, result); |
| completion_callback.Run(result); |
| } |
| |
| void IsAppLauncherInstalledOnBlockingPool( |
| const OnAppLauncherEnabledCompleted& completion_callback) { |
| DCHECK(content::BrowserThread::GetBlockingPool()->RunsTasksOnCurrentThread()); |
| bool result = chrome_launcher_support::IsAppLauncherPresent(); |
| content::BrowserThread::PostTask(content::BrowserThread::UI, FROM_HERE, |
| base::Bind(UpdatePrefAndCallCallbackOnUI, result, completion_callback)); |
| } |
| #endif |
| |
| } // namespace |
| |
| bool MaybeIsAppLauncherEnabled() { |
| return SynchronousAppLauncherChecks() == APP_LAUNCHER_ENABLED; |
| } |
| |
| void GetIsAppLauncherEnabled( |
| const OnAppLauncherEnabledCompleted& completion_callback) { |
| DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI)); |
| |
| AppLauncherState state = SynchronousAppLauncherChecks(); |
| |
| if (state != APP_LAUNCHER_UNKNOWN) { |
| bool is_enabled = state == APP_LAUNCHER_ENABLED; |
| PrefService* prefs = g_browser_process->local_state(); |
| prefs->SetBoolean(prefs::kAppLauncherIsEnabled, is_enabled); |
| completion_callback.Run(is_enabled); |
| return; |
| } |
| |
| #if defined(OS_WIN) |
| content::BrowserThread::PostBlockingPoolTask( |
| FROM_HERE, |
| base::Bind(&IsAppLauncherInstalledOnBlockingPool, |
| completion_callback)); |
| #else |
| // SynchronousAppLauncherChecks() never returns APP_LAUNCHER_UNKNOWN on |
| // !defined(OS_WIN), so this path is never reached. |
| NOTREACHED(); |
| #endif |
| } |
| |
| bool WasAppLauncherEnabled() { |
| PrefService* prefs = g_browser_process->local_state(); |
| // In some tests, the prefs aren't initialised. |
| if (!prefs) |
| return SynchronousAppLauncherChecks() == APP_LAUNCHER_ENABLED; |
| return prefs->GetBoolean(prefs::kAppLauncherIsEnabled); |
| } |
| |
| } // namespace apps |