browser: Refactor the way to show the user data dir dialog.

chrome/browser/ui/views/user_data_dir_dialog.cc

-// Copyright (c) 2012 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 "base/logging.h"
-#include "base/utf_string_conversions.h"
-#include "chrome/browser/ui/views/user_data_dir_dialog.h"
-#include "grit/chromium_strings.h"
-#include "grit/generated_resources.h"
-#include "ui/base/l10n/l10n_util.h"
-#include "ui/views/controls/message_box_view.h"
-#include "ui/views/widget/widget.h"
-
-// static
-FilePath UserDataDirDialog::RunUserDataDirDialog(
-    const FilePath& user_data_dir) {
-  // When the window closes, it will delete itself.
-  UserDataDirDialog* dialog = new UserDataDirDialog(user_data_dir);
-  MessageLoopForUI::current()->RunWithDispatcher(dialog);
-  return dialog->user_data_dir();
-}
-
-UserDataDirDialog::UserDataDirDialog(const FilePath& user_data_dir)
-    : ALLOW_THIS_IN_INITIALIZER_LIST(
-          select_file_dialog_(SelectFileDialog::Create(this))),
-      is_blocking_(true) {
-  const int kDialogWidth = 400;
-  views::MessageBoxView::InitParams params(
-      l10n_util::GetStringFUTF16(IDS_CANT_WRITE_USER_DIRECTORY_SUMMARY,
-                                 user_data_dir.LossyDisplayName()));
-  params.message_width = kDialogWidth;
-  message_box_view_ = new views::MessageBoxView(params);
-
-  views::Widget::CreateWindow(this)->Show();
-}
-
-UserDataDirDialog::~UserDataDirDialog() {
-  select_file_dialog_->ListenerDestroyed();
-}
-
-string16 UserDataDirDialog::GetDialogButtonLabel(
-    ui::DialogButton button) const {
-  switch (button) {
-    case ui::DIALOG_BUTTON_OK:
-      return l10n_util::GetStringUTF16(
-          IDS_CANT_WRITE_USER_DIRECTORY_CHOOSE_DIRECTORY_BUTTON);
-    case ui::DIALOG_BUTTON_CANCEL:
-      return l10n_util::GetStringUTF16(
-          IDS_CANT_WRITE_USER_DIRECTORY_EXIT_BUTTON);
-    default:
-      NOTREACHED();
-  }
-  return string16();
-}
-
-string16 UserDataDirDialog::GetWindowTitle() const {
-  return l10n_util::GetStringUTF16(IDS_CANT_WRITE_USER_DIRECTORY_TITLE);
-}
-
-void UserDataDirDialog::DeleteDelegate() {
-  delete this;
-}
-
-bool UserDataDirDialog::Accept() {
-  // Directory picker
-  std::wstring dialog_title = UTF16ToWide(l10n_util::GetStringUTF16(
-      IDS_CANT_WRITE_USER_DIRECTORY_CHOOSE_DIRECTORY_BUTTON));
-  HWND owning_hwnd =
-      GetAncestor(message_box_view_->GetWidget()->GetNativeView(), GA_ROOT);
-  select_file_dialog_->SelectFile(SelectFileDialog::SELECT_FOLDER,
-                                  dialog_title, FilePath(), NULL, 0,
-                                  std::wstring(), NULL, owning_hwnd, NULL);
-  return false;
-}
-
-bool UserDataDirDialog::Cancel() {
-  is_blocking_ = false;
-  return true;
-}
-
-views::View* UserDataDirDialog::GetContentsView() {
-  return message_box_view_;
-}
-
-views::Widget* UserDataDirDialog::GetWidget() {
-  return message_box_view_->GetWidget();
-}
-
-const views::Widget* UserDataDirDialog::GetWidget() const {
-  return message_box_view_->GetWidget();
-}
-
-bool UserDataDirDialog::Dispatch(const base::NativeEvent& msg) {
-  TranslateMessage(&msg);
-  DispatchMessage(&msg);
-  return is_blocking_;
-}
-
-void UserDataDirDialog::FileSelected(const FilePath& path,
-                                     int index, void* params) {
-  user_data_dir_ = path;
-  is_blocking_ = false;
-}
-
-void UserDataDirDialog::FileSelectionCanceled(void* params) {
-}