Refactor kiosk app launch to be part of login screen UI flow.

chrome/browser/chromeos/ui/app_launch_view.cc

-// Copyright (c) 2013 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/chromeos/ui/app_launch_view.h"
-
-#include "ash/shell.h"
-#include "ash/shell_delegate.h"
-#include "ash/shell_window_ids.h"
-#include "base/bind.h"
-#include "base/logging.h"
-#include "base/values.h"
-#include "chrome/browser/ui/webui/chromeos/app_launch_ui.h"
-#include "chrome/common/url_constants.h"
-#include "content/public/browser/browser_context.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/render_view_host.h"
-#include "content/public/browser/render_widget_host_view.h"
-#include "content/public/browser/web_contents.h"
-#include "grit/generated_resources.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "ui/aura/root_window.h"
-#include "ui/base/l10n/l10n_util.h"
-#include "ui/gfx/screen.h"
-#include "ui/views/controls/webview/webview.h"
-#include "ui/views/layout/fill_layout.h"
-#include "ui/views/widget/widget.h"
-
-using content::BrowserThread;
-
-namespace chromeos {
-
-internal::AppLaunchView* g_instance = NULL;
-
-void ShowAppLaunchSplashScreen(const std::string& app_id) {
-  // TODO(zelidrag): Come up with a better UI for this purpose.
-  internal::AppLaunchView::ShowAppLaunchSplashScreen(app_id);
-}
-
-void UpdateAppLaunchSplashScreenState(AppLaunchState state) {
-  internal::AppLaunchView::UpdateAppLaunchState(state);
-}
-
-void CloseAppLaunchSplashScreen() {
-  internal::AppLaunchView::CloseAppLaunchSplashScreen();
-}
-
-namespace internal {
-
-int GetProgressMessageFromState(AppLaunchState state) {
-  switch (state) {
-    case APP_LAUNCH_STATE_LOADING_AUTH_FILE:
-    case APP_LAUNCH_STATE_LOADING_TOKEN_SERVICE:
-      // TODO(zelidrag): Add better string for this one than "Please wait..."
-      return IDS_SYNC_SETUP_SPINNER_TITLE;
-    case APP_LAUNCH_STATE_PREPARING_NETWORK:
-      return IDS_APP_START_NETWORK_WAIT_MESSAGE;
-    case APP_LAUNCH_STATE_INSTALLING_APPLICATION:
-      return IDS_APP_START_APP_WAIT_MESSAGE;
-  }
-  return IDS_APP_START_NETWORK_WAIT_MESSAGE;
-}
-
-// static
-void AppLaunchView::ShowAppLaunchSplashScreen(const std::string& app_id) {
-  if (!g_instance) {
-    g_instance = new AppLaunchView(app_id);
-    g_instance->Show();
-  }
-}
-
-void AppLaunchView::UpdateAppLaunchState(AppLaunchState state) {
-  if (g_instance)
-    g_instance->UpdateState(state);
-}
-
-
-// static
-void AppLaunchView::CloseAppLaunchSplashScreen() {
-  if (g_instance) {
-    g_instance->GetWidget()->Close();
-    g_instance = NULL;
-  }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// AppLaunchView, views::WidgetDelegateView implementation.
-views::View* AppLaunchView::GetContentsView() {
-  return this;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// AppLaunchView, content::WebContentsObserver implementation.
-void AppLaunchView::RenderProcessGone(
-    base::TerminationStatus status) {
-  LOG(ERROR) << "Splash screen terminated with status " << status;
-  AppLaunchView::CloseAppLaunchSplashScreen();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// AppLaunchView private methods.
-AppLaunchView::AppLaunchView(const std::string& app_id)
-    : app_launch_webview_(NULL),
-      container_window_(NULL),
-      app_id_(app_id),
-      state_(APP_LAUNCH_STATE_LOADING_AUTH_FILE),
-      app_launch_ui_(NULL) {
-}
-
-AppLaunchView::~AppLaunchView() {
-}
-
-void AppLaunchView::Show() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  // Add the WebView to our view.
-  AddChildWebContents();
-  // Initialize container window.
-  InitializeWindow();
-  // Show the window.
-  ShowWindow();
-}
-
-void AppLaunchView::AddChildWebContents() {
-  content::BrowserContext* context =
-      ash::Shell::GetInstance()->delegate()->GetCurrentBrowserContext();
-  app_launch_webview_ = new views::WebView(context);
-  SetLayoutManager(new views::FillLayout);
-  AddChildView(app_launch_webview_);
-
-  LoadSplashScreen();
-  content::WebContentsObserver::Observe(
-      app_launch_webview_->GetWebContents());
-}
-
-void AppLaunchView::UpdateState(AppLaunchState state) {
-  if (state == state_)
-    return;
-
-  state_ = state;
-  if (!app_launch_ui_)
-    return;
-
-  app_launch_ui_->SetLaunchText(
-      l10n_util::GetStringUTF8(GetProgressMessageFromState(state_)));
-}
-
-void AppLaunchView::LoadSplashScreen() {
-  std::string url = chrome::kChromeUIAppLaunchURL;
-  url += "?app=" + app_id_;
-
-  app_launch_webview_->GetWebContents()->GetController().LoadURL(
-      GURL(url),
-      content::Referrer(),
-      content::PAGE_TRANSITION_AUTO_TOPLEVEL,
-      std::string());
-
-  app_launch_ui_ = static_cast<AppLaunchUI*>(
-      app_launch_webview_->GetWebContents()->GetWebUI()->GetController());
-
-  // Use a background with transparency to trigger transparency in Webkit.
-  SkBitmap background;
-  background.setConfig(SkBitmap::kARGB_8888_Config, 1, 1);
-  background.allocPixels();
-  background.eraseARGB(0x00, 0x00, 0x00, 0x00);
-  content::RenderViewHost* host =
-      app_launch_webview_->GetWebContents()->GetRenderViewHost();
-  host->GetView()->SetBackground(background);
-}
-
-void AppLaunchView::InitializeWindow() {
-  DCHECK(!container_window_);
-  aura::RootWindow* root_window = ash::Shell::GetPrimaryRootWindow();
-
-  // We want to be the fullscreen topmost child of the root window.
-  // There should be nothing ever really that should show up on top of us.
-  container_window_ = new views::Widget();
-  views::Widget::InitParams params(
-      views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
-  params.delegate = this;
-  params.parent = ash::Shell::GetContainer(
-      root_window,
-      ash::internal::kShellWindowId_LockScreenContainer);
-  params.show_state = ui::SHOW_STATE_FULLSCREEN;
-  container_window_->Init(params);
-}
-
-void AppLaunchView::ShowWindow() {
-  DCHECK(container_window_);
-  container_window_->Show();
-}
-
-}  // namespace internal
-
-}  // namespace chromeos