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 <memory>
+
+#include "base/memory/ptr_util.h"
+#include "base/values.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 {
+
+constexpr char kJsScreenPath[] = "login.ArcKioskSplashScreen";
+
+}  // namespace

[achuithb, 2017/02/03 00:35:00]

Can drop this comment

[Sergey Poromov, 2017/02/03 15:15:36]

Done.

+
+namespace chromeos {
+
+ArcKioskSplashScreenHandler::ArcKioskSplashScreenHandler()
+    : BaseScreenHandler(kJsScreenPath), show_on_init_(false) {}
+
+ArcKioskSplashScreenHandler::~ArcKioskSplashScreenHandler() = default;
+
+void ArcKioskSplashScreenHandler::DeclareLocalizedValues(
+    ::login::LocalizedValuesBuilder* builder) {
+  builder->Add("arcKioskStartMessage", IDS_APP_START_APP_WAIT_MESSAGE);
+
+  const base::string16 product_os_name =
+      l10n_util::GetStringUTF16(IDS_SHORT_PRODUCT_OS_NAME);
+  builder->Add("arcKioskShortcutInfo",
+               l10n_util::GetStringFUTF16(IDS_APP_START_BAILOUT_SHORTCUT_FORMAT,
+                                          product_os_name));
+  builder->Add("arcKioskProductName", product_os_name);
+}
+
+void ArcKioskSplashScreenHandler::Initialize() {
+  if (!show_on_init_)
+    return;
+  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|.
+  std::unique_ptr<base::DictionaryValue> app_info =
+      base::MakeUnique<base::DictionaryValue>();
+  PopulateAppInfo(app_info.get());
+  data.Set("appInfo", std::move(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())
+    return;
+  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 ArcKioskState::STARTING_SESSION:
+      return IDS_SYNC_SETUP_SPINNER_TITLE;
+    case ArcKioskState::WAITING_APP_LAUNCH:
+      return IDS_APP_START_APP_WAIT_MESSAGE;
+    case ArcKioskState::WAITING_APP_WINDOW:
+      return IDS_APP_START_WAIT_FOR_APP_WINDOW_MESSAGE;
+  }

[achuithb, 2017/02/03 00:35:00]

shouldn't you have a default with an assert?

[Sergey Poromov, 2017/02/03 15:15:36]

Done.

+  return IDS_SYNC_SETUP_SPINNER_TITLE;
+}
+
+void ArcKioskSplashScreenHandler::HandleCancelArcKioskLaunch() {
+  if (!delegate_) {
+    LOG(WARNING) << "No delegate set to handle cancel app launch";
+    return;
+  }
+  delegate_->OnCancelArcKioskLaunch();
+}
+
+}  // namespace chromeos