Create OOBE screen for Waiting for Container ready

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

Index: chrome/browser/ui/webui/chromeos/login/wait_for_container_ready_screen_handler.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/wait_for_container_ready_screen_handler.cc b/chrome/browser/ui/webui/chromeos/login/wait_for_container_ready_screen_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..ddaf995f1831314677faf2252542e7354c8a5989
--- /dev/null
+++ b/chrome/browser/ui/webui/chromeos/login/wait_for_container_ready_screen_handler.cc
@@ -0,0 +1,115 @@
+// 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/wait_for_container_ready_screen_handler.h"
+
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/chromeos/arc/arc_session_manager.h"
+#include "chrome/browser/chromeos/login/oobe_screen.h"
+#include "chrome/browser/chromeos/login/screens/wait_for_container_ready_screen.h"
+#include "chrome/grit/generated_resources.h"
+#include "components/login/localized_values_builder.h"
+
+namespace {
+
+constexpr char kJsScreenPath[] = "login.WaitForContainerReadyScreen";
+constexpr base::TimeDelta kWaitingTimeout = base::TimeDelta::FromMinutes(1);
+
+}  // namespace
+
+namespace chromeos {
+
+WaitForContainerReadyScreenHandler::WaitForContainerReadyScreenHandler()
+    : BaseScreenHandler(kScreenId), weak_ptr_factory_(this) {
+  set_call_js_prefix(kJsScreenPath);
+  arc::ArcSessionManager::Get()->AddObserver(this);
+  is_container_ready_ = arc::ArcSessionManager::Get()->IsSessionRunning();
+}
+
+WaitForContainerReadyScreenHandler::~WaitForContainerReadyScreenHandler() {
+  if (screen_) {
+    screen_->OnViewDestroyed(this);
+  }
+  timer_.Stop();
+  if (arc::ArcSessionManager::Get())
+    arc::ArcSessionManager::Get()->RemoveObserver(this);
+}
+
+void WaitForContainerReadyScreenHandler::DeclareLocalizedValues(
+    ::login::LocalizedValuesBuilder* builder) {
+  builder->Add("waitForContainerReadyTitle",
+               IDS_WAIT_FOR_CONTAINER_READY_TITLE);
+  builder->Add("waitForContainerReadyIntroMessage",
+               IDS_WAIT_FOR_CONTAINER_READY_INTRO_MESSAGE);
+}
+
+void WaitForContainerReadyScreenHandler::Bind(
+    WaitForContainerReadyScreen* screen) {
+  BaseScreenHandler::SetBaseScreen(screen);
+  screen_ = screen;
+  if (page_is_ready())
+    Initialize();
+}
+
+void WaitForContainerReadyScreenHandler::Unbind() {
+  screen_ = nullptr;
+  BaseScreenHandler::SetBaseScreen(nullptr);
+  timer_.Stop();
+}
+
+void WaitForContainerReadyScreenHandler::Show() {
+  if (!page_is_ready() || !screen_) {
+    show_on_init_ = true;
+    return;
+  }
+
+  if (is_container_ready_) {
+    NotifyContainerReady();
+    return;
+  }
+
+  timer_.Start(
+      FROM_HERE, kWaitingTimeout,
+      base::Bind(&WaitForContainerReadyScreenHandler::OnMaxContainerWaitTimeout,
+                 weak_ptr_factory_.GetWeakPtr()));
+
+  ShowScreen(kScreenId);
+}
+
+void WaitForContainerReadyScreenHandler::Hide() {}
+
+void WaitForContainerReadyScreenHandler::OnArcInitialStart() {
+  is_container_ready_ = true;
+  if (!screen_)
+    return;
+
+  // TODO(updowndota): Remove the temporary delay after the potential racing
+  // issue is eliminated.
+  timer_.Stop();
+  timer_.Start(
+      FROM_HERE, base::TimeDelta::FromSeconds(5),
+      base::Bind(&WaitForContainerReadyScreenHandler::NotifyContainerReady,
+                 weak_ptr_factory_.GetWeakPtr()));
+}
+
+void WaitForContainerReadyScreenHandler::Initialize() {
+  if (!screen_ || !show_on_init_)
+    return;
+
+  Show();
+  show_on_init_ = false;
+}
+
+void WaitForContainerReadyScreenHandler::OnMaxContainerWaitTimeout() {
+  // TODO(updowndota): Add histogram to Voice Interaction OptIn flow.
+  if (screen_)
+    screen_->OnContainerReady();
+}
+
+void WaitForContainerReadyScreenHandler::NotifyContainerReady() {
+  if (screen_)
+    screen_->OnContainerReady();
+}
+
+}  // namespace chromeos