chrome/browser/android/metrics/launch_metrics.cc

   1 // Copyright (c) 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 "chrome/browser/android/metrics/launch_metrics.h"
   6
   7 #include "base/android/jni_string.h"
   8 #include "base/metrics/histogram_macros.h"
   9 #include "base/metrics/user_metrics.h"
  10 #include "chrome/browser/android/shortcut_info.h"
  11 #include "chrome/browser/banners/app_banner_settings_helper.h"
  12 #include "chrome/browser/browser_process.h"
  13 #include "components/rappor/rappor_utils.h"
  14 #include "content/public/browser/web_contents.h"
  15 #include "jni/LaunchMetrics_jni.h"
  16 #include "url/gurl.h"
  17
  18 namespace metrics {
  19
  20 enum HomeScreenLaunch {
  21   HOME_SCREEN_LAUNCH_STANDALONE = 0,
  22   HOME_SCREEN_LAUNCH_SHORTCUT = 1,
  23   HOME_SCREEN_LAUNCH_COUNT = 2
  24 };
  25
  26 bool RegisterLaunchMetrics(JNIEnv* env) {
  27   return RegisterNativesImpl(env);
  28 }
  29
  30 static void RecordLaunch(JNIEnv* env, jclass caller, jboolean standalone,
  31                          jstring jurl, int source, jobject jweb_contents) {
  32   GURL url(base::android::ConvertJavaStringToUTF8(env, jurl));
  33
  34   content::WebContents* web_contents =
  35       content::WebContents::FromJavaWebContents(jweb_contents);
  36   if (web_contents && source == ShortcutInfo::SOURCE_APP_BANNER) {
  37     // What a user has installed on the Home screen can become disconnected from
  38     // what Chrome believes is on the Home screen if the user clears their data.
  39     // Use the launch as a signal that the shortcut still exists.
  40     AppBannerSettingsHelper::RecordBannerEvent(
  41         web_contents, url, url.spec(),
  42         AppBannerSettingsHelper::APP_BANNER_EVENT_DID_ADD_TO_HOMESCREEN,
  43         base::Time::Now());
  44   }
  45
  46   std::string rappor_metric_source;
  47   if (source == ShortcutInfo::SOURCE_ADD_TO_HOMESCREEN)
  48     rappor_metric_source = "Launch.HomeScreenSource.AddToHomeScreen";
  49   else if (source == ShortcutInfo::SOURCE_APP_BANNER)
  50     rappor_metric_source = "Launch.HomeScreenSource.AppBanner";
  51   else if (source == ShortcutInfo::SOURCE_BOOKMARK_NAVIGATOR_WIDGET)
  52     rappor_metric_source = "Launch.HomeScreenSource.BookmarkNavigatorWidget";
  53   else if (source == ShortcutInfo::SOURCE_BOOKMARK_SHORTCUT_WIDGET)
  54     rappor_metric_source = "Launch.HomeScreenSource.BookmarkShortcutWidget";
  55   else
  56     rappor_metric_source = "Launch.HomeScreenSource.Unknown";
  57
  58   UMA_HISTOGRAM_ENUMERATION("Launch.HomeScreenSource", source,
  59                             ShortcutInfo::SOURCE_COUNT);
  60
  61   rappor::SampleDomainAndRegistryFromGURL(g_browser_process->rappor_service(),
  62                                           rappor_metric_source, url);
  63
  64   int action = standalone ? HOME_SCREEN_LAUNCH_STANDALONE
  65                           : HOME_SCREEN_LAUNCH_SHORTCUT;
  66   std::string rappor_metric_action = standalone ? "Launch.HomeScreen.Standalone"
  67                                                 : "Launch.HomeScreen.Shortcut";
  68
  69   UMA_HISTOGRAM_ENUMERATION("Launch.HomeScreen", action,
  70                             HOME_SCREEN_LAUNCH_COUNT);
  71
  72   rappor::SampleDomainAndRegistryFromGURL(g_browser_process->rappor_service(),
  73                                           rappor_metric_action, url);
  74 }
  75
  76 };  // namespace metrics