apps/app_launcher.cc

   1 // Copyright 2013 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 "apps/app_launcher.h"
   6
   7 #include "apps/pref_names.h"
   8 #include "base/command_line.h"
   9 #include "base/prefs/pref_registry_simple.h"
  10 #include "base/prefs/pref_service.h"
  11 #include "base/threading/sequenced_worker_pool.h"
  12 #include "chrome/browser/browser_process.h"
  13 #include "chrome/browser/ui/host_desktop.h"
  14 #include "content/public/browser/browser_thread.h"
  15
  16 #if defined(OS_WIN)
  17 #include "chrome/installer/launcher_support/chrome_launcher_support.h"
  18 #include "chrome/installer/util/browser_distribution.h"
  19 #endif
  20
  21 namespace apps {
  22
  23 namespace {
  24
  25 enum AppLauncherState {
  26   APP_LAUNCHER_UNKNOWN,
  27   APP_LAUNCHER_ENABLED,
  28   APP_LAUNCHER_DISABLED,
  29 };
  30
  31 AppLauncherState SynchronousAppLauncherChecks() {
  32 #if defined(USE_ASH) && !defined(OS_WIN)
  33   return APP_LAUNCHER_ENABLED;
  34 #elif !defined(OS_WIN)
  35   return APP_LAUNCHER_DISABLED;
  36 #else
  37 #if defined(USE_ASH)
  38   if (chrome::GetActiveDesktop() == chrome::HOST_DESKTOP_TYPE_ASH)
  39     return APP_LAUNCHER_ENABLED;
  40 #endif
  41   PrefService* prefs = g_browser_process->local_state();
  42   // In some tests, the prefs aren't initialised.
  43   if (!prefs)
  44     return APP_LAUNCHER_UNKNOWN;
  45   return prefs->GetBoolean(prefs::kAppLauncherHasBeenEnabled) ?
  46       APP_LAUNCHER_ENABLED : APP_LAUNCHER_DISABLED;
  47 #endif
  48 }
  49
  50 }  // namespace
  51
  52 bool MaybeIsAppLauncherEnabled() {
  53   return SynchronousAppLauncherChecks() == APP_LAUNCHER_ENABLED;
  54 }
  55
  56 void GetIsAppLauncherEnabled(
  57     const OnAppLauncherEnabledCompleted& completion_callback) {
  58   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
  59
  60   AppLauncherState state = SynchronousAppLauncherChecks();
  61
  62   if (state != APP_LAUNCHER_UNKNOWN) {
  63     completion_callback.Run(state == APP_LAUNCHER_ENABLED);
  64     return;
  65   }
  66   NOTREACHED();
  67 }
  68
  69 bool WasAppLauncherEnabled() {
  70   return SynchronousAppLauncherChecks() == APP_LAUNCHER_ENABLED;
  71 }
  72
  73 }  // namespace apps