Revert of Refactor views app list services to allow more code sharing

chrome/browser/ui/app_list/app_list_shower_views.cc

-// Copyright 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/ui/app_list/app_list_shower_views.h"
-
-#include "base/bind.h"
-#include "base/message_loop/message_loop.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/ui/app_list/app_list_shower_delegate.h"
-#include "chrome/browser/ui/app_list/app_list_view_delegate.h"
-#include "chrome/browser/ui/app_list/scoped_keep_alive.h"
-#include "ui/app_list/views/app_list_view.h"
-#include "ui/gfx/geometry/point.h"
-#include "ui/gfx/screen.h"
-
-AppListShower::AppListShower(AppListShowerDelegate* delegate)
-    : delegate_(delegate),
-      profile_(NULL),
-      app_list_(NULL),
-      window_icon_updated_(false) {
-}
-
-AppListShower::~AppListShower() {
-}
-
-void AppListShower::ShowForProfile(Profile* requested_profile) {
-  // If the app list is already displaying |profile| just activate it (in case
-  // we have lost focus).
-  if (IsAppListVisible() && (requested_profile == profile_)) {
-    Show();
-    return;
-  }
-
-  if (!HasView()) {
-    CreateViewForProfile(requested_profile);
-  } else if (requested_profile != profile_) {
-    profile_ = requested_profile;
-    UpdateViewForNewProfile();
-  }
-
-  keep_alive_.reset(new ScopedKeepAlive);
-  if (!IsAppListVisible())
-    delegate_->MoveNearCursor(app_list_);
-  Show();
-}
-
-gfx::NativeWindow AppListShower::GetWindow() {
-  if (!IsAppListVisible())
-    return NULL;
-  return app_list_->GetWidget()->GetNativeWindow();
-}
-
-void AppListShower::CreateViewForProfile(Profile* requested_profile) {
-  profile_ = requested_profile;
-  app_list_ = MakeViewForCurrentProfile();
-  delegate_->OnViewCreated();
-}
-
-void AppListShower::DismissAppList() {
-  if (HasView()) {
-    Hide();
-    delegate_->OnViewDismissed();
-    keep_alive_.reset();
-  }
-}
-
-void AppListShower::HandleViewBeingDestroyed() {
-  app_list_ = NULL;
-  profile_ = NULL;
-
-  // We may end up here as the result of the OS deleting the AppList's
-  // widget (WidgetObserver::OnWidgetDestroyed). If this happens and there
-  // are no browsers around then deleting the keep alive will result in
-  // deleting the Widget again (by way of CloseAllSecondaryWidgets). When
-  // the stack unravels we end up back in the Widget that was deleted and
-  // crash. By delaying deletion of the keep alive we ensure the Widget has
-  // correctly been destroyed before ending the keep alive so that
-  // CloseAllSecondaryWidgets() won't attempt to delete the AppList's Widget
-  // again.
-  if (base::MessageLoop::current()) {  // NULL in tests.
-    base::MessageLoop::current()->PostTask(
-        FROM_HERE,
-        base::Bind(&AppListShower::ResetKeepAlive, base::Unretained(this)));
-    return;
-  }
-  keep_alive_.reset();
-}
-
-bool AppListShower::IsAppListVisible() const {
-  return app_list_ && app_list_->GetWidget()->IsVisible();
-}
-
-void AppListShower::WarmupForProfile(Profile* profile) {
-  DCHECK(!profile_);
-  CreateViewForProfile(profile);
-  app_list_->Prerender();
-}
-
-bool AppListShower::HasView() const {
-  return !!app_list_;
-}
-
-app_list::AppListView* AppListShower::MakeViewForCurrentProfile() {
-  // The view delegate will be owned by the app list view. The app list view
-  // manages its own lifetime.
-  AppListViewDelegate* view_delegate = new AppListViewDelegate(
-      profile_, delegate_->GetControllerDelegateForCreate());
-  app_list::AppListView* view = new app_list::AppListView(view_delegate);
-  gfx::Point cursor = gfx::Screen::GetNativeScreen()->GetCursorScreenPoint();
-  view->InitAsBubbleAtFixedLocation(NULL,
-                                    &pagination_model_,
-                                    cursor,
-                                    views::BubbleBorder::FLOAT,
-                                    false /* border_accepts_events */);
-  return view;
-}
-
-void AppListShower::UpdateViewForNewProfile() {
-  app_list_->SetProfileByPath(profile_->GetPath());
-}
-
-void AppListShower::Show() {
-  app_list_->GetWidget()->Show();
-  if (!window_icon_updated_) {
-    app_list_->GetWidget()->GetTopLevelWidget()->UpdateWindowIcon();
-    window_icon_updated_ = true;
-  }
-  app_list_->GetWidget()->Activate();
-}
-
-void AppListShower::Hide() {
-  app_list_->GetWidget()->Hide();
-}
-
-void AppListShower::ResetKeepAlive() {
-  keep_alive_.reset();
-}