chrome/browser/ui/webui/app_list/start_page_handler.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 "chrome/browser/ui/webui/app_list/start_page_handler.h"
   6
   7 #include <string>
   8
   9 #include "base/bind.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/metrics/histogram_macros.h"
  12 #include "base/values.h"
  13 #include "base/version.h"
  14 #include "chrome/browser/profiles/profile.h"
  15 #include "chrome/browser/ui/app_list/app_list_controller_delegate.h"
  16 #include "chrome/browser/ui/app_list/app_list_service.h"
  17 #include "chrome/browser/ui/app_list/start_page_service.h"
  18 #include "chrome/browser/ui/host_desktop.h"
  19 #include "chrome/browser/ui/webui/extensions/extension_icon_source.h"
  20 #include "chrome/common/pref_names.h"
  21 #include "components/update_client/update_query_params.h"
  22 #include "content/public/browser/web_ui.h"
  23 #include "extensions/browser/extension_registry.h"
  24 #include "extensions/browser/extension_system.h"
  25 #include "extensions/common/constants.h"
  26 #include "extensions/common/extension.h"
  27 #include "extensions/common/extension_icon_set.h"
  28 #include "ui/app_list/app_list_switches.h"
  29 #include "ui/events/event_constants.h"
  30
  31 namespace app_list {
  32
  33 namespace {
  34
  35 const char kAppListDoodleActionHistogram[] = "Apps.AppListDoodleAction";
  36
  37 // Interactions a user has with the app list doodle. This enum must not have its
  38 // order altered as it is used in histograms.
  39 enum DoodleAction {
  40   DOODLE_SHOWN = 0,
  41   DOODLE_CLICKED,
  42   // Add values here.
  43
  44   DOODLE_ACTION_LAST,
  45 };
  46
  47 }  // namespace
  48
  49 StartPageHandler::StartPageHandler() {
  50 }
  51
  52 StartPageHandler::~StartPageHandler() {
  53 }
  54
  55 void StartPageHandler::RegisterMessages() {
  56   web_ui()->RegisterMessageCallback(
  57       "appListShown", base::Bind(&StartPageHandler::HandleAppListShown,
  58                                  base::Unretained(this)));
  59   web_ui()->RegisterMessageCallback(
  60       "doodleClicked", base::Bind(&StartPageHandler::HandleDoodleClicked,
  61                                   base::Unretained(this)));
  62   web_ui()->RegisterMessageCallback(
  63       "initialize",
  64       base::Bind(&StartPageHandler::HandleInitialize, base::Unretained(this)));
  65   web_ui()->RegisterMessageCallback(
  66       "launchApp",
  67       base::Bind(&StartPageHandler::HandleLaunchApp, base::Unretained(this)));
  68 }
  69
  70 void StartPageHandler::HandleAppListShown(const base::ListValue* args) {
  71   bool doodle_shown = false;
  72   if (args->GetBoolean(0, &doodle_shown) && doodle_shown) {
  73     UMA_HISTOGRAM_ENUMERATION(kAppListDoodleActionHistogram, DOODLE_SHOWN,
  74                               DOODLE_ACTION_LAST);
  75   }
  76 }
  77
  78 void StartPageHandler::HandleDoodleClicked(const base::ListValue* args) {
  79   UMA_HISTOGRAM_ENUMERATION(kAppListDoodleActionHistogram, DOODLE_CLICKED,
  80                             DOODLE_ACTION_LAST);
  81 }
  82
  83 void StartPageHandler::HandleInitialize(const base::ListValue* args) {
  84   Profile* profile = Profile::FromWebUI(web_ui());
  85   StartPageService* service = StartPageService::Get(profile);
  86   if (!service)
  87     return;
  88
  89   service->WebUILoaded();
  90 }
  91
  92 void StartPageHandler::HandleLaunchApp(const base::ListValue* args) {
  93   std::string app_id;
  94   CHECK(args->GetString(0, &app_id));
  95
  96   Profile* profile = Profile::FromWebUI(web_ui());
  97   const extensions::Extension* app =
  98       extensions::ExtensionRegistry::Get(profile)
  99           ->GetExtensionById(app_id, extensions::ExtensionRegistry::EVERYTHING);
 100   if (!app) {
 101     NOTREACHED();
 102     return;
 103   }
 104
 105   AppListControllerDelegate* controller = AppListService::Get(
 106       chrome::GetHostDesktopTypeForNativeView(
 107           web_ui()->GetWebContents()->GetNativeView()))->
 108               GetControllerDelegate();
 109   controller->ActivateApp(profile,
 110                           app,
 111                           AppListControllerDelegate::LAUNCH_FROM_APP_LIST,
 112                           ui::EF_NONE);
 113 }
 114
 115 }  // namespace app_list