chromecast/crash/app_state_tracker.cc

   1 // Copyright 2015 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 "chromecast/crash/app_state_tracker.h"
   6
   7 #include "base/lazy_instance.h"
   8 #include "chromecast/crash/cast_crash_keys.h"
   9
  10 namespace {
  11
  12 struct CurrentAppState {
  13   std::string previous_app;
  14   std::string current_app;
  15   std::string last_launched_app;
  16 };
  17
  18 base::LazyInstance<CurrentAppState> g_app_state = LAZY_INSTANCE_INITIALIZER;
  19
  20 CurrentAppState* GetAppState() {
  21   return g_app_state.Pointer();
  22 }
  23
  24 }  // namespace
  25
  26 namespace chromecast {
  27
  28 // static
  29 std::string AppStateTracker::GetLastLaunchedApp() {
  30   return GetAppState()->last_launched_app;
  31 }
  32
  33 // static
  34 std::string AppStateTracker::GetCurrentApp() {
  35   return GetAppState()->current_app;
  36 }
  37
  38 // static
  39 std::string AppStateTracker::GetPreviousApp() {
  40   return GetAppState()->previous_app;
  41 }
  42
  43 // static
  44 void AppStateTracker::SetLastLaunchedApp(const std::string& app_id) {
  45   GetAppState()->last_launched_app = app_id;
  46
  47   // TODO(slan): Currently SetCrashKeyValue is a no-op on chromecast until
  48   // we add call to InitCrashKeys
  49   base::debug::SetCrashKeyValue(crash_keys::kLastApp, app_id);
  50 }
  51
  52 // static
  53 void AppStateTracker::SetCurrentApp(const std::string& app_id) {
  54   CurrentAppState* app_state = GetAppState();
  55   app_state->previous_app = app_state->current_app;
  56   app_state->current_app = app_id;
  57
  58   base::debug::SetCrashKeyValue(crash_keys::kCurrentApp, app_id);
  59   base::debug::SetCrashKeyValue(crash_keys::kPreviousApp,
  60                                 app_state->previous_app);
  61 }
  62
  63 }  // namespace chromecast