Create OOBE screen for Voice Interaction value proposition

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

Index: chrome/browser/ui/webui/chromeos/login/voice_interaction_value_prop_screen_handler.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/voice_interaction_value_prop_screen_handler.cc b/chrome/browser/ui/webui/chromeos/login/voice_interaction_value_prop_screen_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..93cdf6d0a8cfbcd4ba97893bb1fcb95d4beb81af
--- /dev/null
+++ b/chrome/browser/ui/webui/chromeos/login/voice_interaction_value_prop_screen_handler.cc
@@ -0,0 +1,70 @@
+// Copyright 2016 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/voice_interaction_value_prop_screen_handler.h"
+
+#include "chrome/browser/chromeos/login/oobe_screen.h"
+#include "chrome/browser/chromeos/login/screens/voice_interaction_value_prop_screen.h"
+#include "chrome/grit/generated_resources.h"
+#include "components/login/localized_values_builder.h"
+
+namespace {
+
+const char kJsScreenPath[] = "login.VoiceInteractionValuePropScreen";
+
+}  // namespace
+
+namespace chromeos {
+
+VoiceInteractionValuePropScreenHandler::VoiceInteractionValuePropScreenHandler()
+    : BaseScreenHandler(kScreenId) {
+  set_call_js_prefix(kJsScreenPath);
+}
+
+VoiceInteractionValuePropScreenHandler::
+    ~VoiceInteractionValuePropScreenHandler() {
+  if (screen_) {
+    screen_->OnViewDestroyed(this);
+  }
+}
+
+void VoiceInteractionValuePropScreenHandler::DeclareLocalizedValues(
+    ::login::LocalizedValuesBuilder* builder) {
+  builder->Add("voiceInteractionValuePropNoThanksButton",
+               IDS_VOICE_INTERACTION_VALUE_PROP_NO_THANKS_BUTTON);
+  builder->Add("voiceInteractionValuePropContinueButton",
+               IDS_VOICE_INTERACTION_VALUE_PROP_CONTINUE_BUTTION);
+}
+
+void VoiceInteractionValuePropScreenHandler::Bind(
+    VoiceInteractionValuePropScreen* screen) {
+  screen_ = screen;
+  BaseScreenHandler::SetBaseScreen(screen_);
+}
+
+void VoiceInteractionValuePropScreenHandler::Unbind() {
+  screen_ = nullptr;
+  BaseScreenHandler::SetBaseScreen(nullptr);
+}
+
+void VoiceInteractionValuePropScreenHandler::Show() {
+  if (!page_is_ready()) {
+    show_on_init_ = true;
+    return;
+  }
+
+  ShowScreen(kScreenId);
+}
+
+void VoiceInteractionValuePropScreenHandler::Hide() {}
+
+void VoiceInteractionValuePropScreenHandler::Initialize() {
+  if (!page_is_ready() || !show_on_init_)

[xiyuan, 2017/05/30 19:26:22]

page_is_ready() is not necessary. It should always return true when Initialize()
is called.

We might need to test |screen_| though since it could be nullptr when
Initialize() is called.

[yueli, 2017/06/02 02:03:47]

Done.

+    return;
+
+  Show();
+  show_on_init_ = false;
+}
+
+}  // namespace chromeos