arc: Add splash screen for ARC++ Kiosk startup

chrome/browser/ui/webui/chromeos/login/arc_kiosk_splash_screen_handler.cc

+// Copyright 2017 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 "chrome/browser/ui/webui/chromeos/login/arc_kiosk_splash_screen_handler.h"
+
+#include "chrome/grit/chrome_unscaled_resources.h"
+#include "chrome/grit/chromium_strings.h"
+#include "chrome/grit/generated_resources.h"
+#include "components/login/localized_values_builder.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/base/webui/web_ui_util.h"
+#include "ui/gfx/image/image_skia.h"
+
+namespace {
+
+const char kJsScreenPath[] = "login.ArcKioskSplashScreen";

[Luis Héctor Chávez, 2017/01/24 18:40:24]

nit: constexpr

[Sergey Poromov, 2017/01/25 14:29:22]

Done.

+
+}  // namespace
+
+namespace chromeos {
+
+ArcKioskSplashScreenHandler::ArcKioskSplashScreenHandler()
+    : BaseScreenHandler(kJsScreenPath), show_on_init_(false) {}
+
+ArcKioskSplashScreenHandler::~ArcKioskSplashScreenHandler() {}

[Luis Héctor Chávez, 2017/01/24 18:40:24]

nit: = default

[Sergey Poromov, 2017/01/25 14:29:22]

Done.

+
+void ArcKioskSplashScreenHandler::DeclareLocalizedValues(
+    ::login::LocalizedValuesBuilder* builder) {
+  builder->Add("arcKioskStartMessage", IDS_APP_START_APP_WAIT_MESSAGE);
+}
+
+void ArcKioskSplashScreenHandler::Initialize() {
+  if (show_on_init_) {

[Luis Héctor Chávez, 2017/01/24 18:40:25]

nit:

if (!show_on_init_)
  return;

[Sergey Poromov, 2017/01/25 14:29:22]

Done.

+    show_on_init_ = false;
+    Show();
+  }
+}
+
+void ArcKioskSplashScreenHandler::Show() {
+  if (!page_is_ready()) {
+    show_on_init_ = true;
+    return;
+  }
+
+  base::DictionaryValue data;
+  // |data| will take ownership of |app_info|.
+  base::DictionaryValue* app_info = new base::DictionaryValue();

[Luis Héctor Chávez, 2017/01/24 18:40:25]

prefer to use 

std::unique_ptr<base::DictionaryValue> app_info =
base::MakeUnique<base::DictionaryValue>();

and then std::move() it.

+  PopulateAppInfo(app_info);
+  data.Set("appInfo", app_info);
+  ShowScreenWithData(OobeScreen::SCREEN_ARC_KIOSK_SPLASH, &data);
+}
+
+void ArcKioskSplashScreenHandler::RegisterMessages() {
+  AddCallback("cancelArcKioskLaunch",
+              &ArcKioskSplashScreenHandler::HandleCancelArcKioskLaunch);
+}
+
+void ArcKioskSplashScreenHandler::UpdateArcKioskState(ArcKioskState state) {
+  if (page_is_ready()) {

[Luis Héctor Chávez, 2017/01/24 18:40:25]

nit:

if (!page_is_ready())
  return;

[Sergey Poromov, 2017/01/25 14:29:22]

Done.

+    SetLaunchText(l10n_util::GetStringUTF8(GetProgressMessageFromState(state)));
+  }
+}
+
+void ArcKioskSplashScreenHandler::SetDelegate(
+    ArcKioskSplashScreenHandler::Delegate* delegate) {
+  delegate_ = delegate;
+}
+
+void ArcKioskSplashScreenHandler::PopulateAppInfo(
+    base::DictionaryValue* out_info) {
+  out_info->SetString("name", l10n_util::GetStringUTF8(IDS_SHORT_PRODUCT_NAME));
+  out_info->SetString(
+      "iconURL",
+      webui::GetBitmapDataUrl(*ResourceBundle::GetSharedInstance()
+                                   .GetImageSkiaNamed(IDR_PRODUCT_LOGO_128)
+                                   ->bitmap()));
+}
+
+void ArcKioskSplashScreenHandler::SetLaunchText(const std::string& text) {
+  CallJS("updateArcKioskMessage", text);
+}
+
+int ArcKioskSplashScreenHandler::GetProgressMessageFromState(
+    ArcKioskState state) {
+  switch (state) {
+    case ARC_KIOSK_STATE_STARTING_SESSION:
+      return IDS_SYNC_SETUP_SPINNER_TITLE;
+    case ARC_KIOSK_STATE_WAITING_APP_LAUNCH:
+      return IDS_APP_START_APP_WAIT_MESSAGE;
+    case ARC_KIOSK_STATE_WAITING_APP_WINDOW:
+      return IDS_APP_START_WAIT_FOR_APP_WINDOW_MESSAGE;
+  }
+  return IDS_SYNC_SETUP_SPINNER_TITLE;
+}
+
+void ArcKioskSplashScreenHandler::HandleCancelArcKioskLaunch() {
+  if (delegate_)

[Luis Héctor Chávez, 2017/01/24 18:40:25]

nit:

if (!delegate_) {
  LOG(WARNING) << "No delegate set to handle cancel app launch";
  return;
}

[Sergey Poromov, 2017/01/25 14:29:22]

Done.

+    delegate_->OnCancelArcKioskLaunch();
+  else
+    LOG(WARNING) << "No delegate set to handle cancel app launch";
+}
+
+}  // namespace chromeos